PT Journal
AU Chakraborty, S
   Gupta, A
   Vanvlasselaer, M
TI Anomaly induced cooling of neutron stars: a Standard Model contribution
SO Journal of Cosmology and Astroparticle Physics
JI J. Cosmol. Astropart. Phys.
PY 2023
BP 030
EP 23pp
VL 10
IS 10
DI 10.1088/1475-7516/2023/10/030
LA English
DE neutron stars; neutrino theory
AB 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 -> N nu nu over bar . We find that for proto-neutron stars, such processes with degenerate neutrons can be comparable and even dominate over the typical and well-known cooling mechanisms.
ER