Beta Equilibrium under Neutron Star Merger Conditions
Abstract
We calculate the nonzero-temperature correction to the beta equilibrium condition in nuclear matter under neutron star merger conditions, in the temperature range 1mEv < T ≲ 5 mEv. We improve on previous work using a consistent description of nuclear matter based on the IUF and SFHo relativistic mean field models. This includes using relativistic dispersion relations for the nucleons, which we show is essential in these models. We find that the nonzero-temperature correction can be of order 10 to 20 MeV, and plays an important role in the correct calculation of Urca rates, which can be wrong by factors of 10 or more if it is neglected.
- Authors:
-
[1];
[1];
[2];
[1]
- Washington Univ., St. Louis, MO (United States)
- Univ. of Washington, Seattle, WA (United States)
- Publication Date:
- Research Org.:
- Washington Univ., St. Louis, MO (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
- OSTI Identifier:
- 1830791
- Grant/Contract Number:
- FG02-05ER41375; FG02-00ER41132; PHY-1430152
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Universe
- Additional Journal Information:
- Journal Volume: 7; Journal Issue: 11; Journal ID: ISSN 2218-1997
- Publisher:
- MDPI
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; nuclear matter; neutron star merger; beta equilibration; weak interaction
Citation Formats
Alford, Mark G., Haber, Alexander, Harris, Steven P., and Zhang, Ziyuan. Beta Equilibrium under Neutron Star Merger Conditions. United States: N. p., 2021.
Web. doi:10.3390/universe7110399.
Alford, Mark G., Haber, Alexander, Harris, Steven P., & Zhang, Ziyuan. Beta Equilibrium under Neutron Star Merger Conditions. United States. https://doi.org/10.3390/universe7110399
Alford, Mark G., Haber, Alexander, Harris, Steven P., and Zhang, Ziyuan. Fri .
"Beta Equilibrium under Neutron Star Merger Conditions". United States. https://doi.org/10.3390/universe7110399. https://www.osti.gov/servlets/purl/1830791.
@article{osti_1830791,
title = {Beta Equilibrium under Neutron Star Merger Conditions},
author = {Alford, Mark G. and Haber, Alexander and Harris, Steven P. and Zhang, Ziyuan},
abstractNote = {We calculate the nonzero-temperature correction to the beta equilibrium condition in nuclear matter under neutron star merger conditions, in the temperature range 1mEv < T ≲ 5 mEv. We improve on previous work using a consistent description of nuclear matter based on the IUF and SFHo relativistic mean field models. This includes using relativistic dispersion relations for the nucleons, which we show is essential in these models. We find that the nonzero-temperature correction can be of order 10 to 20 MeV, and plays an important role in the correct calculation of Urca rates, which can be wrong by factors of 10 or more if it is neglected.},
doi = {10.3390/universe7110399},
journal = {Universe},
number = 11,
volume = 7,
place = {United States},
year = {Fri Oct 22 00:00:00 EDT 2021},
month = {Fri Oct 22 00:00:00 EDT 2021}
}
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Works referencing / citing this record:
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