Detection of Supernova Neutrinos on the Earth for Large θ13

Supernova （SN） neutrinos detected on the Earth are subject to the shock wave effects, the Mikheyev- Smirnov-Wolfenstein （MSW） effects, the neutrino collective effects and the Earth matter effects. Considering the recent experimental result about the large mixing angle 013 （-8.8°） provided by the Day...

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Bibliographic Details
Published in理论物理通讯：英文版 Vol. 61; no. 2; pp. 226 - 234
Main Author 徐晶 黄明阳 胡立军 郭新恒 杨炳麟
Format Journal Article
LanguageEnglish
Published 2014
Subjects
冲击波
地球
子事件
探测
无量纲参数
米赫耶夫
超几何函数
超新星中微子
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Summary:Supernova （SN） neutrinos detected on the Earth are subject to the shock wave effects, the Mikheyev- Smirnov-Wolfenstein （MSW） effects, the neutrino collective effects and the Earth matter effects. Considering the recent experimental result about the large mixing angle 013 （-8.8°） provided by the Daya Bay Collaboration and applying the available knowledge for the neutrino conversion probability in the high resonance region of SN, PH , which is in the form of hypergeometric function in the case of large 813, we deduce the expression of PH taking into account the shock wave effects. It is found that PH is not zero in a certain range of time due to the shock wave effects. After considering all the four physical effects and scanning relevant parameters, we calculate the event numbers of SN neutrinos for the ＂Garehing＂ distribution of neutrino energy spectrum. From the numerical results, it is found that the behaviors of neutrino event numbers detected on the Earth depend on the neutrino mass hierarchy and neutrino spectrum parameters including the dimensionless pinching parameter βa （where a refers to neutrino flavor）, the average energy 〈Ea〉, and the SN neutrino luminosities La. Finally, we give the ranges of SN neutrino event numbers that will be detected at the Daya Bay experiment.
Bibliography:supernova neutrinos, Daya Bay experiment, 813, shock wave effects, MSW effects, PH
XU Jing, HUANG Ming-Yang, HULi-Jun, GUO Xin-Heng and YOUNG Bing-Lin（1College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China 2Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 3Department of Physics and Astronomy, Iowa State University, Ames, Iowa 5001, USA 4Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China）
Supernova （SN） neutrinos detected on the Earth are subject to the shock wave effects, the Mikheyev- Smirnov-Wolfenstein （MSW） effects, the neutrino collective effects and the Earth matter effects. Considering the recent experimental result about the large mixing angle 013 （-8.8°） provided by the Daya Bay Collaboration and applying the available knowledge for the neutrino conversion probability in the high resonance region of SN, PH , which is in the form of hypergeometric function in the case of large 813, we deduce the expression of PH taking into account the shock wave effects. It is found that PH is not zero in a certain range of time due to the shock wave effects. After considering all the four physical effects and scanning relevant parameters, we calculate the event numbers of SN neutrinos for the ＂Garehing＂ distribution of neutrino energy spectrum. From the numerical results, it is found that the behaviors of neutrino event numbers detected on the Earth depend on the neutrino mass hierarchy and neutrino spectrum parameters including the dimensionless pinching parameter βa （where a refers to neutrino flavor）, the average energy 〈Ea〉, and the SN neutrino luminosities La. Finally, we give the ranges of SN neutrino event numbers that will be detected at the Daya Bay experiment.
11-2592/O3
ISSN:0253-6102
DOI:10.1088/0253-6102/61/2/14