A relativistic quantum approach to neutrino and antineutrino emission via the direct Urca process in strongly magnetized neutron-star matter

Maruyama, Tomoyuki; Balantekin, A. Baha; Cheoun, Myung-Ki; Kajino, Toshitaka; Kusakabe, Motohiko; Mathews, Grant J.

doi:10.1016/j.physletb.2021.136813

Title: A relativistic quantum approach to neutrino and antineutrino emission via the direct Urca process in strongly magnetized neutron-star matter

Journal Article · Sat Jan 01 00:00:00 EST 2022 · Physics Letters B

DOI:https://doi.org/10.1016/j.physletb.2021.136813· OSTI ID:1833772

; Balantekin, A. Baha;

; Kajino, Toshitaka; Kusakabe, Motohiko; Mathews, Grant J.

We study neutrino and antineutrino emission from the direct Urca process in neutron-star matter in the presence of strong magnetic fields. We calculate the neutrino emissivity of the direct Urca process, whereby a neutron converts to a proton, an electron and an antineutrino, or a proton-electron pair converts to a neutron-neutrino pair. We solve exact wave functions for protons and electrons in the states described with Landau levels. We find that the direct Urca process can satisfy the kinematic constraints even in density regions where this process could not normally occur in the absence of a magnetic field.

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Research Organization:: University of Notre Dame, IN (United States)

Sponsoring Organization:: USDOE Office of Science (SC); Ministry of Education, Science and Culture of Japan; National Science Foundation (NSF); National Research Foundation of Korea (NRF)

Grant/Contract Number:: FG02-95-ER40934; FG02-95ER40934; JP20K03958; JP19K03833; JP17K05459; JP16K05360; JP15H03665; PHY-1806368; PHY-2020275; PHY-2108339; NRF-2021R1A6A1A03043957; 020K1A3A7A09080134; NRF-2020R1A2C3006177

OSTI ID:: 1833772

Alternate ID(s):: OSTI ID: 1977556

Journal Information:: Physics Letters B, Journal Name: Physics Letters B Vol. 824 Journal Issue: C; ISSN 0370-2693

Publisher:: ElsevierCopyright Statement

Country of Publication:: Netherlands

Language:: English

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79 ASTRONOMY AND ASTROPHYSICS
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neutron-star
direct urca
neutrino and antineutrino emissions
strong magnetic field
relativistic quantum approach

Title: A relativistic quantum approach to neutrino and antineutrino emission via the direct Urca process in strongly magnetized neutron-star matter

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