High Energy Physics - Phenomenology
[Submitted on 28 Jun 2023 (v1), last revised 1 May 2024 (this version, v4)]
Title:Anomaly induced cooling of Neutron Stars: A Standard Model contribution
View PDFAbstract:Young neutron stars cool via the emission of neutrinos from their core. A precise understanding of all the different processes producing neutrinos in the hot and degenerate matter is essential for assessing the cooling rate of such stars. The main Standard Model processes contributing to this effect are $\nu$ bremsstrahlung, mURCA among others. In this paper, we investigate another Standard Model process initiated by the Wess-Zumino-Witten term, leading to the emission of neutrino pairs via $N\gamma\to N\nu\bar\nu$. We find that for proto-neutron stars, such processes, with degenerate neutrons, can be comparable and even dominate over the prototypical and well-known cooling mechanisms.
Submission history
From: Sabyasachi Chakraborty [view email][v1] Wed, 28 Jun 2023 02:17:58 UTC (1,384 KB)
[v2] Wed, 25 Oct 2023 03:40:36 UTC (1,384 KB)
[v3] Thu, 21 Mar 2024 07:36:24 UTC (1,385 KB)
[v4] Wed, 1 May 2024 12:15:21 UTC (1,939 KB)
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