The competition of neutrino energy loss due to the pair, photo-, plasma process at the late stages of stellar evolution

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LIU Jing-Jing. The competition of neutrino energy loss due to the pair, photo-, plasma process at the late stages of stellar evolution[J]. Chinese Physics C, 2009, 33(1): 15-19. doi: 10.1088/1674-1137/33/1/004
LIU Jing-Jing. The competition of neutrino energy loss due to the pair, photo-, plasma process at the late stages of stellar evolution[J]. Chinese Physics C, 2009, 33(1): 15-19.  doi: 10.1088/1674-1137/33/1/004 shu
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Received: 2007-12-12
Revised: 2008-06-16
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The competition of neutrino energy loss due to the pair, photo-, plasma process at the late stages of stellar evolution

    Corresponding author: LIU Jing-Jing,
  • The Department of Physics, Qiongzhou University, Wuzhishan 572200, China

Abstract: 

Based on the Weinberg-Salam theory, the competition of the Neutrino Energy Loss (NEL) rates due to the pair, photo- and plasma process are canvassed. The ratio factor C1, C2 and C3 which correspond the different contributions of the pair, photo- and plasma neutrino process to those of the total NEL rates are accurately taken into account. The ratio factors are very sensitive to the temperature and density. The ratio factor C2 always is lower than the ratio factor C1 and C3. The pair NEL process is the dominant contribution before the
crossed point O(C1 =C3=0.45) and the plasma NEL process will be the main dominant contribution after the crossed point O. With increasing temperature, the crossed point $O$ will move to the direction of higher density.

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