Neutrino Mean Free Path in Strange Matter at High Temperatures |
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摘 要: | We investigate the condition that the neutrino energies Ev can be considered to be small enough to be neglected in the energy momentum conservation equation in the reactions d+ve → u+e- and u+e- → d+ve. It can be simply expressed as Ev < 4αcμe/π, where αc is the strong coupling constant and μe is the electron chemical potential. Then for Ev < 4αcμe/π, we generalize the mean free path for nondegenerate neutrinos given by Iwamoto and obtain a formula that is valid for both nondegenerate and degenerate neutrinos. We also model the mean free path for both nondegenerate and degenerate neutrinos with energies Ev < 4αcμe/π.
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关 键 词: | 微中子 平均自由行程 高温条件 奇异物质 QCD 中子星 高能物理学 |
Neutrino Mean Free Path in Strange Matter at High Temperatures |
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Authors: | MA Zhong-Xiang ZHAO Yong-Heng |
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Institution: | National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 |
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Abstract: | |
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Keywords: | 13 15 +g 14 65 Bt 97 60 Gb |
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