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arXiv 2103.01703nucl-thastro-ph.HE
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强磁化中子星物质中直接Urca过程中微子和反中微子发射的相对论量子方法

A Relativistic Quantum Approach to Neutrino and Antineutrino Emissions via the Direct Urca Process in Strongly Magnetized Neutron-Star Matter

Tomoyuki Maruyama, A. Baha Balantekind, Myung-Ki Cheoung, Toshitaka Kajino, Motohiko Kusakabef, Grant J. Mathewsh

摘要:

本文研究了强磁场作用下中子星物质直接Urca过程的中微子和反中微子辐射。我们计算的中微子发射率的直接Urca过程,即中子转换为质子,电子和反中微子,或质子-电子对转换为中子-中微子对。在朗道能级描述的状态下,我们求解了质子和电子的精确波函数。我们发现,直接Urca过程可以满足运动学约束,即使在密度区域,这个过程通常不会发生在没有磁场。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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