High Energy Physics - Phenomenology
New submissions
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New submissions for Thu, 2 May 24
- [1] arXiv:2405.00086 [pdf, other]
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Title: Cosmic Ray-Boosted Dark Matter at IceCubeComments: 7 pages, 5 figuresSubjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Astrophysical Phenomena (astro-ph.HE)
Cosmic ray (CR) upscattering of dark matter is considered as one of the most straightforward mechanisms to accelerate ambient dark matter, making it detectable at high threshold, large volume experiments. In this work, we revisit CR upscattered dark matter signals at the IceCube detector, focusing on lower energy data than was considered before. We consider both scattering with electrons and nuclei. In the latter, we include both elastic and deep-inelastic scattering computations. As concrete examples, we consider two benchmark models; Fermion dark matter with vector and scalar mediators. We compare our model projections with the most current constraints and show that the IceCube detector can detect CR-boosted dark matter especially with masses below $\sim$ 100 keV when scattering with electrons and $\sim$ MeV in the nucleon scattering case.
- [2] arXiv:2405.00088 [pdf, other]
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Title: Mass from NothingComments: 25 pages, no figures; comments, criticisms and citation requests welcome!Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th); Nuclear Theory (nucl-th)
We study the Abelian Higgs model with multiple scalar fields, but without mass terms. Solving the model non-perturbatively order-by-order in the number of scalar fields, we find that radiative corrections generate masses for the scalar and gauge boson, without spontaneous symmetry breaking. The mass scales are set by the $\Lambda$-parameter of the electroweak running coupling, thereby naturally avoiding the hierarchy problem. No part of our calculation employs a weak-coupling expansion, and we find that the perturbative vacuum is metastable, and hence must decay to the stable non-perturbative vacuum of the theory, which we identify. Although the field content of our Lagrangian is standard, our results predict the existence of two heavy scalar resonances in addition to the Higgs. We believe that these predicted resonances will ultimately allow experimentalists to discriminate between our method and standard solutions of the Higgs model.
- [3] arXiv:2405.00090 [pdf, other]
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Title: Can the QCD axion feed a dark energy component?Comments: 6 pages, 2 figuresSubjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO)
A pseudo Nambu-Goldstone boson (PNGB) coupled to a confining gauge group via an anomalous term is characterised, during the confining phase transition, by a temperature dependent mass $m^2(T) \propto T^{-n}$. For $n>2$, a non-relativistic population of such particles dominating the cosmological energy density would act as dark energy (DE), accelerating the expansion. We study the possibility that a PNGB $\varphi_b$ coupled to a hidden gauge group that is presently undergoing confinement could realise this scenario. To obtain the observed amount of DE, the number density of $\varphi_b$ must be boosted by some mechanism. Assuming that the QCD axion $\varphi_a$ constitutes the dark matter (DM), a non-adiabatic level crossing between $\varphi_a$ and $\varphi_b$ shortly before matter-DE equality can convert a small fraction of DM into DE, providing such mechanism and explaining the coincidence puzzle.
- [4] arXiv:2405.00094 [pdf, other]
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Title: How to rule out $(g-2)_μ$ in $U(1)_{L_μ-L_τ}$ with White Dwarf CoolingComments: 16 pages, 5 figures, 2 data filesSubjects: High Energy Physics - Phenomenology (hep-ph)
In recent years, the gauge group $U(1)_{L_\mu-L_\tau}$ has received a lot of attention since it can, in principle, account for the observed excess in the anomalous muon magnetic moment $(g-2)_\mu$, as well as the Hubble tension. Due to unavoidable, loop-induced kinetic mixing with the SM photon and $Z$, the $U(1)_{L_\mu-L_\tau}$ gauge boson $A'$ can contribute to stellar cooling via decays into neutrinos. In this work, we perform for the first time an \textit{ab initio} computation of the neutrino emissivities of white dwarf stars due to plasmon decay in a model of gauged $U(1)_{L_\mu-L_\tau}$. Our central finding is that an observation of the early-stage white dwarf neutrino luminosity at the 30% level could exclude (or partially exclude) the remaining allowed parameter space for explaining $(g-2)_\mu$. In this work, we present the relevant white dwarf sensitivities over the entire $A'$ mass range. In particular, we have performed a rigorous computation of the luminosities in the resonant regime, where the $A'$ mass is comparable to the white dwarf plasma frequencies.
- [5] arXiv:2405.00108 [pdf, other]
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Title: Flavor Phenomenology of Light Dark VectorsComments: 40 pages, 11 figures, 6 tablesSubjects: High Energy Physics - Phenomenology (hep-ph)
Light dark matter with flavor-violating couplings to fermions may be copiously produced in the laboratory as missing energy from decays of SM particles. Here we study the effective Lagrangian of a light dark vector with generic dipole or vector couplings. We calculate the resulting two-body decay rates of mesons, baryons and leptons as a function of the dark vector mass and show that existing experimental limits probe UV scales as large as $10^{12} \,\mathrm{GeV}$. We also derive the general RGEs in order to constrain the flavor-universal UV scenario, where all flavor violation arises radiatively proportional to the CKM matrix.
- [6] arXiv:2405.00112 [pdf, other]
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Title: Transmon Qubit Constraints on Dark Matter-Nucleon ScatteringComments: 11 pages, 5 figuresSubjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Experiment (hep-ex)
We recently pointed out that power measurements of single quasiparticle devices can be used to detect dark matter. These devices have the lowest known energy thresholds, far surpassing standard direct detection experiments, requiring energy deposition above only about an meV. We calculate dark matter induced quasiparticle densities in transmon qubits, and use the latest transmon qubit measurements that provide one of the strongest existing lab-based bounds on dark matter-nucleon scattering below about 100 MeV. We strongly constrain sub-component dark matter, using both a dark matter population thermalized in the Earth as well as the dark matter wind from the Galactic halo. We demonstrate future potential sensitivities using devices with low quasiparticle densities.
- [7] arXiv:2405.00119 [pdf, other]
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Title: Sterile neutrino dark matter within the $ν$SMEFTComments: 28 pages + 4 pages appendix, 9 figuresSubjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Sterile neutrinos with masses at the $\mathrm{keV}$ scale and mixing to the active neutrinos offer an elegant explanation of the observed dark matter (DM) density. However, the very same mixing inevitably leads to radiative photon emission and the non-observation of such peaked $X$-ray lines rules out this minimal sterile neutrino DM hypothesis. We show that in the context of the Standard Model effective field theory with sterile neutrinos ($\nu$SMEFT), higher dimensional operators can produce sterile neutrino DM in a broad range of parameter space. In particular, $\nu$SMEFT interactions can open the large mixing parameter space due to their destructive interference, through operator mixing or matching, in the $X$-ray emission. We also find that, even in the zero mixing limit, the DM density can always be explained by $\nu$SMEFT operators. The testability of the studied $\nu$SMEFT operators in searches for electric dipole moments, neutrinoless double beta decay, and pion decay measurements is discussed.
- [8] arXiv:2405.00124 [pdf, other]
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Title: Primordial black hole probes of heavy neutral leptonsComments: 23 pages, 4 figuresSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Astrophysical Phenomena (astro-ph.HE)
Primordial black holes (PBH), while still constituting a viable dark matter component, are expected to evaporate through Hawking radiation. Assuming the semi-classical approximation holds up to near the Planck scale, PBHs are expected to evaporate by the present time, emitting a significant flux of particles in their final moments, if produced in the early Universe with an initial mass of $\sim 10^{15}$ g. These ''exploding'' black holes will release a burst of Standard Model particles alongside any additional degrees of freedom, should they exist. We explore the possibility that heavy neutral leptons (HNL), mixing with active neutrinos, are emitted in the final evaporation stages. We calculate the expected number of active neutrinos from such an event, including contributions due to the HNL decay for different assumptions on the mixings. We infer sensitivities on the active-sterile neutrino mixing and on the sterile neutrino mass, finding that, for instance, for the scenario where $U_{\tau 4}\neq 0$, IceCube could improve current constraints by $\sim 2$ orders of magnitude, for HNLs masses between 0.1 - 1 GeV, for a PBH at a distance of $\sim 10^{-4}$ pc from Earth.
- [9] arXiv:2405.00151 [pdf, other]
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Title: An analytical formula for signal optimization in stimulated photon-photon scattering setup with three laser pulsesComments: 14 pages, 9 figuresSubjects: High Energy Physics - Phenomenology (hep-ph); Optics (physics.optics)
We consider a setup to detect stimulated photon-photon scattering using high-power lasers. Signal photons are emitted from an overlap of the incoming intense laser pulses focused in vacuum from three sides. We derive and justify a general approximate analytical formula for the angular distribution and total yield of such signal photons in terms of the parameters of the incoming pulses, including their intensity, carrier frequencies, durations, focusing, polarizations, mutual orientation and overlap. Using the obtained formula a parametric study of the signal is carried out and optimization is performed.
- [10] arXiv:2405.00153 [pdf, other]
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Title: Supernova limits on 'QCD axion-like particles'Comments: 15 pages, 3 figuresSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Astrophysical Phenomena (astro-ph.HE)
In this paper, we explore the phenomenology of massive Axion-Like Particles (ALPs) coupled to quarks and gluons, dubbed 'QCD ALPs', with an emphasis on the associated low-energy observables. ALPs coupled to gluons and quarks not only induce nuclear interactions at scales below the QCD-scale, relevant for ALP production in supernovae (SNe), but naturally also couple to photons similarly to the QCD-axion. We discuss the link between the high-energy formulation of ALP theories and their effective couplings with nucleons and photons. The induced photon coupling allows ALPs with masses $m_a\gtrsim1$ MeV to efficiently decay into photons, and astrophysical observables severely constrain the ALP parameter space. We show that a combination of arguments related to SN events rule out ALP-nucleon couplings down to $g_{aN}\gtrsim 10^{-11}- 10^{-10}$ for $m_a\gtrsim1$ MeV - a region of the parameter space that was hitherto unconstrained.
- [11] arXiv:2405.00164 [pdf, ps, other]
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Title: Divergences in the effective loop interaction of the Chern-Simons bosons with leptons. The unitary gauge caseAuthors: Yuliia Borysenkova, Volodymyr Gorkavenko, Ivan Hrynchak, Oleksandr Khasai, Mariia TsarenkovaComments: 11 pages, 2 figuresSubjects: High Energy Physics - Phenomenology (hep-ph)
In this paper, we consider the extension of the Standard Model with Chern-Simons type interaction. There is a new vector massive boson (Chern-Simons bosons) in this extension. Using only three-particle dimension-4 interaction of the Chern-Simons bosons with vector bosons of the SM, we consider effective loop interaction of a new vector boson with leptons. We consider the renormalizability of this loop interaction and conclude that for the case of computation of loop diagrams in the unitary gauge, we can not get rid of the divergences in the effective interaction of the Chern-Simons bosons with leptons.
- [12] arXiv:2405.00281 [pdf, ps, other]
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Title: Doubly-Charm and Doubly-Bottom Pentaquark molecular States via the QCD sum rulesComments: 12 pages, 10 figuresSubjects: High Energy Physics - Phenomenology (hep-ph)
In the present work, the doubly-charm and doubly-bottom pentaquark molecular states $D^{(*)}\Sigma_c^{(*)}$ and $B^{(*)}\Sigma_b^{(*)}$ are studied via the QCD sum rules. Sixteen color singlet-singlet type currents with the definite isospin-spin-parity $IJ^P$ are constructed to interpolate the corresponding hadronic states with the same quantum numbers. The masses and pole residues of those doubly-heavy pentaquark molecular states are calculated, the results show that their masses are all below the corresponding meson-baryon thresholds, which means that they are possible bound states, not resonant states, moreover, the possible decay channels for the doubly-charm molecular states are given.
- [13] arXiv:2405.00350 [pdf, ps, other]
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Title: Spectrum of Hybrid Charmonium, Bottomonium and $B_c$ Mesons by Power Series MethodComments: 14 pages, 11 TablesSubjects: High Energy Physics - Phenomenology (hep-ph)
Power series method (PSM) is revisited to find the masses of S, P, and D states of conventional charmonium ($c\overline{c}$), bottomonium ($b\overline{b}$), and $B_c$ ($\overline{b}c$) mesons by assuming the solution of N-dimensional radial Schrodinger equation in series form. An extension in the potential model is proposed by fitting it with lattice data to study the hybrid mesons. The proposed potential model is used to find the masses of hybrid $c\overline{c}$, $b\overline{b}$, and $\overline{b}c$ mesons by applying the power series method. Calculated results are compared with theoretical findings and available experimental data. Our results can be helpful for the investigation of newly experimentally discovered charmonium, bottomonium, and $B_c$ states.
- [14] arXiv:2405.00444 [pdf, other]
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Title: Study of vector and axial-vector form factors and the decay parameters for the semileptonic hyperon decaysComments: 21 pages, 5 figures and 9 tablesSubjects: High Energy Physics - Phenomenology (hep-ph)
Using the standard parametrization of the dipole form, we have studied the vulnerability of $Q^2$ on the vector form factors ($f_i^{B_iB_f}(Q^2)$) and axial-vector form factors ($g_i^{B_iB_f}(Q^2)$), $i=1,2,3$ computed for the semileptonic $B_i \rightarrow B_f l \bar{\nu}$ decays for hyperons in the framework of chiral constituent quark model ($\chi$CQM). Both, strangeness changing as well as strangeness conserving decays have been examined. We also present the dependence of the ratio of hyperon semileptonic decay constants $g_1(Q^2)/f_1(Q^2)$ for these decays. Further, we calculate the CKM matrix elements $V_{ud}$ from strangeness conserving and $V_{us}$ from strangeness changing hyperon decays.
- [15] arXiv:2405.00445 [pdf, other]
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Title: Transverse distortion and single-spin asymmetries for low-lying octet baryonsComments: 21 pages, 12 figures and 2 tablesSubjects: High Energy Physics - Phenomenology (hep-ph)
Being the fountainhead of transverse distortion and asymmetries in accordance to $``SSA=GPD \ast FSI\,"$, we study the spin flip generalized parton distribution. We demonstrate this transverse deformation by using the quark-scalar diquark model and unveil a comparison among the low-lying strange baryons for distinct feasible combinations of quark-diquark pairs. Final-state interaction originating the correlation of a target spin and a virtual photon to the generated pion plane in semi-inclusive deep inelastic scattering has also been analyzed.
- [16] arXiv:2405.00446 [pdf, other]
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Title: Quark spin-orbit correlations in spin-0 and spin-1 mesons using the light-front quark modelComments: 23 pages, 4 figures and 3 tablesSubjects: High Energy Physics - Phenomenology (hep-ph)
We have investigated the spin-orbital angular momentum correlations for the active quark inside the light and heavy mesons for both the spin-0 and spin-1 cases. These correlations can be derived from the generalised transverse momentum dependent distributions (GTMDs) as well as the generalised parton distributions (GPDs). We employ the overlap representation of light-front wave functions in the light-front quark model (LFQM) to calculate our analytical results. The dependence of spin-orbit correlations (SOCs) on the longitudinal momentum fraction $x$ as well as the transverse momentum dependence $\mathbf{k}_{\perp}$ has been graphically presented. Even though the SOCs have already been studied for the spin-0 pions and kaons in other approaches, no calculations for the other light and heavy spin-0 mesons have been reported in literature. Further, the correlations for any of the light and heavy spin-1 mesons have been studied for the first time in the present work.
- [17] arXiv:2405.00490 [pdf, other]
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Title: A first-order deconfinement phase transition in the early universe and gravitational wavesComments: 6 pages, 2 figuresSubjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Theory (hep-th); Nuclear Theory (nucl-th)
We clarify the conditions of the cosmic quantum chromodynamics (QCD) first-order phase transition in the early universe by carefully distinguishing the chiral and deconfinement phase transitions. While the chiral one with light quarks at zero chemical potential is unlikely to be first order based on the recent lattice QCD calculations, the latter one can be naturally extended with one extra rolling scalar to be first order. The argument is also valid for the dark QCD theory with arbitrary $N_c$ with a wide range of phase transition temperatures, which can be from hundreds of MeV up to beyond TeV. Notably, here we derive the general formula for the deconfinement phase transition potential of SU($N_c$) gauge theory characterized by the Polyakov loop. With the effective potential in hand, the gravitational wave spectrum is then determined via the sound shell model, which then enables us to give for the first time the quantitative analysis of the gravitational wave signals coming from the QCD deconfinement phase transition and awaits the check from future space interferometers.
- [18] arXiv:2405.00496 [pdf, ps, other]
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Title: Study of $B_{(s)}$ meson decays to $D_{0}^{\ast}(2300) ,D_{s0}^{\ast}(2317) , D_{s1}(2460)$ and $D_{s1}(2536)$ within the covariant light-front approachComments: 30 pages, 4 figuresSubjects: High Energy Physics - Phenomenology (hep-ph)
In this work, we investigate the form factors of the transitions $B_{(s)} \to D_{0}^{\ast}(2300),D_{s0}^{\ast}(2317),$ $ D_{s1}(2460) $ and $ D_{s1}(2536)$ in the covariant light-front quark model (CLFQM), where these final states are considered as P-wave excited charmed mesons. In order to obtain the form factors for the physical transition processes, we need to extend these form factors from the space-like region to the time-like region. The $q^{2}$-dependence for each transition form factor is also plotted. Then, combined with those form factors, the branching ratios of the two-body nonleptonic decays $B_{(s)}\to D^*_{(s)0}(2300,2317)M, D_{s1}(2460,2536)M$ with $M$ being a light pseudoscalar (vector) meson or a charmed meson are calculated by considering the QCD radiative corrections to the hadronic matrix elements with the QCD factorization approach. Most of our predictions are comparable to the results given by other theoretical approaches and the present available data.
- [19] arXiv:2405.00525 [pdf, other]
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Title: Isospin violation effect and three-body decays of the $T_{cc}^{+}$ stateComments: 10 pages, 2 figuresSubjects: High Energy Physics - Phenomenology (hep-ph)
In this work, we make a study of $T_{cc}^+$ state observed by the LHCb collaboration in 2021. In obtaining the effective potentials using the One-Boson-Exchange Potential Model we use an exponential form factor, and find that in the short and medium range, the contributions of the $\pi$, $\rho$ and $\omega$ exchanges are comparable while in the long range the pion-exchange contribution is dominant. Based on the assumption that $T_{cc}^+$ is a loosely bound state of $D^*D$, we focus on its three-body decay using the meson-exchange method. Considering that the difference between the thresholds of $D^{*+}D^0$ and $D^{*0}D^+$ is even larger than the binding energy of $T_{cc}^+$, the isospin-breaking effect is amplified by the small binding energy of $T_{cc}^+$. Explicitly including such an isospin-breaking effect we obtain, by solving the Schr\"{o}dinger equation, that the probability of the isoscalar component is about $91\%$ while that of the isovector component is around $9\%$ for $T_{cc}^+$. Using the experimental value of the mass of $T_{cc}^+$ as an input, we obtain the wave function of $T_{cc}^+$ and further obtain its width via the three-body hadronic as well as the radiative decays. The total width we obtain is in agreement with the experimental value of the LHCb measurement with a unitarised Breit-Wigner profile. Conversely, the current results support the conclusion that $T_{cc}^+$ is a hadronic molecule of $D^*D$.
- [20] arXiv:2405.00612 [pdf, other]
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Title: Two-loop mixed QCD-EW corrections to charged current Drell-YanComments: 26 pages, 7 figures. arXiv admin note: text overlap with arXiv:2201.01754Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex); High Energy Physics - Theory (hep-th)
We present the two-loop mixed strong-electroweak virtual corrections to the charged current Drell-Yan process. The final-state collinear singularities are regularised by the lepton mass. The evaluation of all the relevant Feynman integrals, including those with up to two different internal massive lines, has been worked out relying on semi-analytical techniques, using complex-valued masses. We can provide, at any arbitrary phase-space point, the solution as a power series in the $W$-boson mass, around a reference value. Starting from these expansions, we can prepare a numerical grid for any value of the $W$-boson mass within their radius of convergence in a negligible amount of time.
- [21] arXiv:2405.00633 [pdf, other]
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Title: Predictions for Composite Higgs models from gauge/gravity dualitiesAuthors: Werner PorodComments: 12 pages, Proceedings of the "Workshop on the Standard Model and Beyond", Corfu Summer Institute, 2023 (CORFU2023-SM)Subjects: High Energy Physics - Phenomenology (hep-ph)
Gauge/gravity dualities provide a very useful approach into solving strongly coupled systems. We apply this to Composite Higgs models and determine the mass hierarchies of the corresponding bound states. As a cross check we apply this to QCD and compare the results to existing lattice calculations for which we find good agreement. We then focus on a particular example whose phenomenology has recently been studied in the literature in a generic way and outline first phenomenological implications of our findings for the spectrum.
- [22] arXiv:2405.00641 [pdf, other]
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Title: Tomography of flavoured leptogenesis with primordial blue gravitational wavesComments: 21 pages, 6 figures, comments are welcomeSubjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO)
We explore a scenario where an early epoch of matter domination is driven by the mass scale $M_N$ of the right-handed neutrinos, which also characterizes the different flavour regimes of leptogenesis. Such a matter-domination epoch gives rise to peculiar spectral imprints on primordial Gravitational Waves (GWs) produced during inflation. We point out that the characteristic spectral features are detectable in multiple frequency bands with current and future GW experiments in case of Blue GWs (BGWs) described by a power-law with a positive spectral index $(n_T >0)$ and an amplitude compatible with Cosmic Microwave Background (CMB) measurements. We find that the three-flavour leptogenesis regime with $M_N \lesssim 10^9~{\rm GeV}$ imprints BGWs more prominently than the two-flavour and one-flavour regimes characterized by a higher right-neutrino mass scale. In particular, a two-flavour (three-flavour) leptogenesis regime is expected to leave distinct imprints in the mHz ($\mu$Hz) band. Moreover, we translate the current Big Bang Nucleosynthesis (BBN) and LIGO limits on the GW energy density into constraints on the flavour leptogenesis parameter space for different GW spectral index $n_T$. Interestingly, a three-flavour leptogenesis regime can offer a unique signal testable in the next LIGO run with a correlated signature in the PTA frequency band with an amplitude comparable to the one expected from supermassive black holes.
Cross-lists for Thu, 2 May 24
- [23] arXiv:2405.00060 (cross-list from astro-ph.HE) [pdf, ps, other]
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Title: Measurement of Milli-Charged Particles with a moderately large cross section from the Earth's core at IceCubeAuthors: Ye XuComments: 14 pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:2207.00178v28 and arXiv:2401.07617v2Subjects: High Energy Astrophysical Phenomena (astro-ph.HE); High Energy Physics - Phenomenology (hep-ph)
It is assumed that heavy dark matter $\phi$ with O(TeV) mass captured by the Earth may decay to relativistic light milli-charged particles (MCPs). These MCPs could be measured by the IceCube neutrino telescope. The massless hidden photon model was taken for MCPs to interact with nuclei, so that the numbers and fluxes of expected MCPs may be evaluated at IceCube. Meanwhile, the numbers of expected neutrino background events were also evaluated at IceCube. Based on the assumption that no events are observed at IceCube in 10 years, the corresponding upper limits on MCP fluxes were calculated at 90\% C. L.. These results indicated that the MCPs from the Earth's core could be directly detected at O(1TeV) energies at IceCube when $2\times10^{-5}\lesssim\epsilon^2\lesssim4.5\times10^{-3}$. And a new region of 100 MeV < $m_{MCP}$ < 10 GeV and $4.47\times10^{-3}$ $\lesssim$ $\epsilon$ $\lesssim$ $9.41\times10^{-2}$ is ruled out in the $m_{MCP}$-$\epsilon$ plane with 10 years of IceCube data.
- [24] arXiv:2405.00072 (cross-list from astro-ph.HE) [pdf, other]
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Title: Role of local anisotropy in hybrid starsComments: 13 pages. Comments are Welcome :). arXiv admin note: text overlap with arXiv:2312.00310Subjects: High Energy Astrophysical Phenomena (astro-ph.HE); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)
Using the Bower-Liang model, we discuss how pressure anisotropies affect the microscopic and macroscopic properties of hybrid stars. We find that anisotropies affect the maximum mass, central density, and radius of the canonical stars. Anisotropies also affect the minimum neutron star mass that presents quarks in their core, as well as the total amount of quarks for the maximally massive stars. We also confront our results with standard constraints, such as the radius and the tidal parameter of the canonical star, as well as the mass and radius of the PSR J0740+6620 pulsar. We observe that moderate values for anisotropies could fulfill these constraints simultaneously. On the other hand, within more extreme degrees of anisotropies, more speculative constraints such as black widow pulsars PSR J0952-0607 and the mass-gap object in the GW190814 event can be explained as hybrid stars. We also investigate the role of anisotropies in the neutron stars' moment of inertia.
- [25] arXiv:2405.00140 (cross-list from astro-ph.CO) [pdf, other]
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Title: Hydrodynamical simulations of merging galaxy clusters: giant dark matter particle colliders, powered by gravityAuthors: Ellen L. Sirks, David Harvey, Richard Massey, Kyle A. Oman, Andrew Robertson, Carlos Frenk, Spencer Everett, Ajay S. Gill, David Lagattuta, Jacqueline McClearyComments: 8 pages, 5 figures plus appendices. MNRAS in pressSubjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
Terrestrial particle accelerators collide charged particles, then watch the trajectory of outgoing debris - but they cannot manipulate dark matter. Fortunately, dark matter is the main component of galaxy clusters, which are continuously pulled together by gravity. We show that galaxy cluster mergers can be exploited as enormous, natural dark matter colliders. We analyse hydrodynamical simulations of a universe containing self-interacting dark matter (SIDM) in which all particles interact via gravity, and dark matter particles can also scatter off each other via a massive mediator. During cluster collisions, SIDM spreads out and lags behind cluster member galaxies. Individual systems can have quirky dynamics that makes them difficult to interpret. Statistically, however, we find that the mean or median of dark matter's spatial offset in many collisions can be robustly modelled, and is independent of our viewing angle and halo mass even in collisions between unequal-mass systems. If the SIDM cross-section were sigma/m = 0.1cm^2/g = 0.18 barn/GeV, the 'bulleticity' lag would be ~5 percent that of gas due to ram pressure, and could be detected at 95 percent confidence in weak lensing observations of ~100 well-chosen clusters.
- [26] arXiv:2405.00209 (cross-list from quant-ph) [pdf, ps, other]
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Title: Superluminal matter wavesSubjects: Quantum Physics (quant-ph); High Energy Physics - Phenomenology (hep-ph)
The Dirac equation has resided among the greatest successes of modern physics since its emergence as the first quantum mechanical theory fully compatible with special relativity. This compatibility ensures that the expectation value of the velocity is less than the vacuum speed of light. Here, we show that the Dirac equation admits free-particle solutions where the peak amplitude of the wavefunction can travel at any velocity, including those exceeding the vacuum speed of light, despite having a subluminal velocity expectation value. The solutions are constructed by superposing basis functions with correlations in momentum space. These arbitrary velocity wavefunctions feature a near-constant profile and may impact quantum mechanical processes that are sensitive to the local value of the probability density as opposed to expectation values.
- [27] arXiv:2405.00396 (cross-list from nucl-th) [pdf, ps, other]
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Title: Particle production from gluon-nucleon interactions in relativistic heavy ion collisionsComments: 6 pages,6 figuresSubjects: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology (hep-ph)
We propose a particle production mechanism analogous to the particle photoproduction processes, arising from the gluon-nucleon interactions in relativistic heavy ion collisions. The comparison is made on the effect of the gluon-nucleon interactions on the photon production in Au+Au collisions at $\sqrt{s_{NN}}=$200 GeV and Pb+Pb collisions at $\sqrt{s_{NN}}=$2.76 TeV. The numerical results indicate that as the collision energy increases, the contribution of gluon-nucleon interactions becomes more prominent.
- [28] arXiv:2405.00413 (cross-list from hep-th) [pdf, ps, other]
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Title: Four loop renormalization in six dimensions using ForcerAuthors: J.A. GraceyComments: 38 latex pages, anc directory contains electronic version of the six dimensional Forcer master integrals and $O(N)$ $\phi^3$ five loop MOMt renormalization group functions, coupling constant maps and conversion functionsSubjects: High Energy Physics - Theory (hep-th); High Energy Physics - Phenomenology (hep-ph)
We employ the Forcer algorithm to renormalize a variety of six dimensional field theories to four loops. In order to achieve this we construct the Forcer master integrals in six dimensions from their four dimensional counterparts by using the Tarasov method. The $\epsilon$ expansion of the six dimensional masters are determined up to weight $9$ where $d$ $=$ $6$ $-$ $2\epsilon$. By applying the Forcer routine the four loop MSbar renormalization of $\phi^3$ theory is reproduced before gauge theories are considered. The renormalization of these theories is also determined in the MOMt scheme. For instance the absence of $\zeta_4$ and $\zeta_6$ is confirmed to five loops in the MOMt renormalization of $\phi^3$ theory. We also evaluate the three loop $\beta$-function of the gauge coupling in six dimensional QCD.
- [29] arXiv:2405.00502 (cross-list from astro-ph.CO) [pdf, other]
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Title: Using non-DESI data to confirm and strengthen the DESI 2024 spatially-flat $w_0w_a$CDM cosmological parameterization resultComments: 9 pages, 3 figuresSubjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
We use a combination of Planck cosmic microwave background (CMB) anisotropy data and non-CMB data that include Pantheon+ type Ia supernovae, Hubble parameter [$H(z)$], growth factor ($f\sigma_8$) measurements, and a collection of baryon acoustic oscillation (BAO) data, but not recent DESI 2024 BAO measurements, to confirm the DESI 2024 (DESI+CMB+PantheonPlus) data compilation support for dynamical dark energy with an evolving equation of state parameter $w(z) = w_0 + w_a z/(1+z)$. From our joint compilation of CMB and non-CMB data, in a spatially-flat cosmological model, we obtain $w_0 = -0.850 \pm 0.059$ and $w_a = -0.59^{+0.26}_{-0.22}$ and find that this dynamical dark energy is favored over a cosmological constant by $\sim 2\sigma$. Our data constraints on the flat $w_0w_a$CDM model are slightly more restrictive than the DESI 2024 constraints, with the DESI 2024 and our values of $w_0$ and $w_a$ differing by $-0.27\sigma$ and $0.44\sigma$, respectively. Our data compilation slightly more strongly favors the flat $w_0w_a$CDM model over the flat $\Lambda$CDM model than does the DESI 2024 data compilation.
- [30] arXiv:2405.00546 (cross-list from astro-ph.HE) [pdf, other]
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Title: Ultralight Primordial Black HolesAuthors: Stefano ProfumoComments: 10 pages, 2 figures, To appear in the book "Primordial Black Holes", ed. Chris Byrnes, Gabriele Franciolini, Tomohiro Harada, Paolo Pani, Misao Sasaki; Springer (2024)Subjects: High Energy Astrophysical Phenomena (astro-ph.HE); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph)
The fate of ultralight black holes depends on whether or not evaporation stops at or around the Planck scale. If evaporation stops, the general expectation is that a population of Planck-scale will be left over, possibly including a significant fraction of electrically charged relics. If evaporation does not stop, a runaway "explosion" would occur, with significant and potentially detectable high-energy emission. Here, I review both possibilities, with an emphasis on current status and future detection prospects.
Replacements for Thu, 2 May 24
- [31] arXiv:2111.14701 (replaced) [pdf, other]
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Title: $\mathbf{B-L}$ model with $\mathbf{D_4\times Z_4\times Z_2}$ symmetry for fermion mass hierarchies and mixingsAuthors: V. V. VienComments: 30 pages, 17 figures, 4 tables; the lepton sector is addedJournal-ref: Chinese Phys. C 48 (2024) 063102Subjects: High Energy Physics - Phenomenology (hep-ph)
- [32] arXiv:2306.08709 (replaced) [pdf, other]
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Title: Probing Lepton Number Violation: A Comprehensive Survey of Dimension-7 SMEFTComments: 52 pages, 7 figures, 13 tables, LHC limits updated using the latest results from ATLAS with 139 fb^{-1} data, matches the published version in JHEPSubjects: High Energy Physics - Phenomenology (hep-ph)
- [33] arXiv:2306.15697 (replaced) [pdf, other]
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Title: Foliation, topology and nucleon charge profiles in hypersphere soliton modelAuthors: Soon-Tae HongComments: 15 pages, 3 figures, title changedJournal-ref: Physica Scripta 99 (2024) 045301Subjects: High Energy Physics - Phenomenology (hep-ph)
- [34] arXiv:2306.15872 (replaced) [pdf, other]
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Title: Anomaly induced cooling of Neutron Stars: A Standard Model contributionComments: 19 pages, Updated section 4.4, matches with the published version of JCAP, updated Fig. 5 with different values of the nucleon-omega couplingSubjects: High Energy Physics - Phenomenology (hep-ph)
- [35] arXiv:2307.14128 (replaced) [pdf, other]
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Title: Bound isoscalar axial-vector $bc\bar u\bar d$ tetraquark $T_{bc}$ from lattice QCD using two-meson and diquark-antidiquark variational basisComments: 8 pages, 6 figures, 1 table, plus supplemental material (4 pages, 5 figures, 1 table). v2: version accepted to be published in Physical Review Letters. Results and conclusions unchangedSubjects: High Energy Physics - Lattice (hep-lat); High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph)
- [36] arXiv:2308.02928 (replaced) [pdf, other]
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Title: Causal and stable first-order chiral hydrodynamicsComments: 21 pages, 1 figure. Version accepted for publication in Physical Review DSubjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)
- [37] arXiv:2309.01886 (replaced) [pdf, ps, other]
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Title: Reconstruction of Unstable Heavy Particles Using Deep Symmetry-Preserving Attention NetworksAuthors: Michael James Fenton, Alexander Shmakov, Hideki Okawa, Yuji Li, Ko-Yang Hsiao, Shih-Chieh Hsu, Daniel Whiteson, Pierre BaldiComments: Accepted by Nature Communications Physics, replaced with published versionJournal-ref: Commun Phys 7, 139 (2024)Subjects: High Energy Physics - Experiment (hep-ex); Machine Learning (cs.LG); High Energy Physics - Phenomenology (hep-ph)
- [38] arXiv:2310.17710 (replaced) [pdf, other]
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Title: Peccei-Quinn Inflation at the Pole and Axion Kinetic MisalignmentComments: 28 pages, 3 figures, v2: improved discussion on the evolution of the axion velocity with a changing equation of state of the inflaton. Version to be published in JHEPSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
- [39] arXiv:2311.09285 (replaced) [pdf, other]
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Title: Instanton NDA and Applications to Axion ModelsComments: 50 pages, 6 figures; v2: minor modifications. Matches version published in JHEPSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
- [40] arXiv:2311.10059 (replaced) [pdf, ps, other]
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Title: Speed of sound and polytropic index in QCD matterComments: 7 pages, 5 figuresSubjects: High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)
- [41] arXiv:2312.08534 (replaced) [pdf, other]
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Title: Temporal Entanglement Entropy as a probe of Renormalization Group FlowComments: 13+2 pages, 3 figures; v2: minor improvements; matches version accepted in JHEPSubjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)
- [42] arXiv:2312.12985 (replaced) [pdf, other]
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Title: Cosmological implications of inflaton-mediated dark and visible matter scatterings after reheatingComments: 19 pages, 10 figures; v2: comments added, version as published in Physical Review DJournal-ref: Physical Review D 109, 083541 (2024)Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO)
- [43] arXiv:2312.16320 (replaced) [pdf, other]
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Title: Neutrino Lorentz Invariance Violation from Cosmic FieldsComments: 17 pages, 2 appendices; v2: additional references; v3: 19 pages, 2 appendices; four additional references, one table. Matches version to be published in PLBSubjects: High Energy Physics - Phenomenology (hep-ph)
- [44] arXiv:2312.17313 (replaced) [pdf, other]
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Title: Emerging entanglement on network historiesComments: 18 pages, 8 figures, minor changes, agrees with publication in Physical Review DJournal-ref: Phys. Rev. D 109, 085016 (2024)Subjects: High Energy Physics - Theory (hep-th); High Energy Physics - Phenomenology (hep-ph); Quantum Physics (quant-ph)
- [45] arXiv:2401.02334 (replaced) [pdf, other]
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Title: Probing New Physics in light of recent developments in $b \rightarrow c \ell ν$ transitionsComments: 33 pages, 9 figures, 8 Tables, updated Tables and Figures with latest experimental data in the textSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
- [46] arXiv:2401.15078 (replaced) [pdf, other]
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Title: Physical Yukawa Couplings in Heterotic String CompactificationsAuthors: Giorgi Butbaia, Damián Mayorga Peña, Justin Tan, Per Berglund, Tristan Hübsch, Vishnu Jejjala, Challenger MishraComments: 33 pages, 11 figures, 2 tables, 3 lemmas, 1 theorem. v2: Minor editsSubjects: High Energy Physics - Theory (hep-th); High Energy Physics - Phenomenology (hep-ph)
- [47] arXiv:2403.19384 (replaced) [pdf, other]
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Title: Impact of JLab data on the determination of GPDs at zero skewness and new insights from transition form factors $ N\rightarrow Δ$Comments: 20 Pages, 8 Figures and 2 TablesJournal-ref: Phys. Rev. D 109 (2024) 7, 074042Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
- [48] arXiv:2404.08881 (replaced) [pdf, other]
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Title: Hidden BPS states of electroweak monopole and a new bound estimateComments: 24 pages, 3 figures, submitted to EPJ CSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
- [49] arXiv:2404.09827 (replaced) [pdf, ps, other]
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Title: Triple Higgs couplings at LHCComments: 16 pages, 11 figures Work for the 2024 International Workshop on Future Linear Colliders (LCWS2024)Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
- [50] arXiv:2404.10815 (replaced) [pdf, other]
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Title: Influence of new states in searches for negative gauge-Higgs couplingsComments: 12 pages, 7 figures. Inclusion of an appendixSubjects: High Energy Physics - Phenomenology (hep-ph)
- [51] arXiv:2404.14917 (replaced) [pdf, other]
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Title: Particle Swarm Optimization Based Analysis to Unlocking the Neutrino Mass Puzzle using $A_{4}\times Z_{3}\times Z_{10}$ Flavor SymmetryComments: 20 PagesSubjects: High Energy Physics - Phenomenology (hep-ph)
- [52] arXiv:2404.15442 (replaced) [pdf, other]
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Title: Electromagnetic Form Factors for Nucleons in Short-Range Correlations and the EMC effectSubjects: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology (hep-ph)
- [53] arXiv:2404.17526 (replaced) [pdf, ps, other]
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Title: QCD analysis of $xF_3$ structure functions in deep-inelastic scattering: Mellin transform by Gegenbauer polynomial up to N$^3$LO approximationComments: 9 pages, 8 figures, 2 tablesSubjects: High Energy Physics - Phenomenology (hep-ph)
- [54] arXiv:2404.18582 (replaced) [pdf, ps, other]
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Title: Dressing vs. Fixing: On How to Extract and Interpret Gauge-Invariant ContentSubjects: History and Philosophy of Physics (physics.hist-ph); High Energy Physics - Phenomenology (hep-ph)
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