Effects of neutrino oscillation on the supernova neutrino spectrum
Effects of neutrino oscillation on the supernova neutrino spectrum
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DOI：
10.1103/physrevd.64.093004
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发表时间：
2001-10
影响因子：
5
通讯作者：
Keitaro Takahashi;Mariko Watanabe;Katsuhiko Sato;T. Totani
中科院分区：
文献类型：
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作者：
Keitaro Takahashi;Mariko Watanabe;Katsuhiko Sato;T. Totani
研究了三味中微子振荡对超新星中微子谱的影响。利用基于超新星爆炸数值模拟的真实中微子爆发模型，计算了SuperKamiokande （SK）和Sudbury中微子天文台（SNO）的预期事件率和能量谱及其时间演化。我们还采用基于前超新星模型的真实密度分布来计算超新星包壳中的中微子转换概率。这些现实的模型和数值计算使我们能够以比以前的研究更现实的方式定量地估计中微子振荡的影响。然后，我们发现太阳中微子问题解的简并性可以通过结合对未来银河系超新星的SK和SNO探测来打破。
The effects of three-flavor neutrino oscillation on the supernova neutrino spectrum are studied. We calculate the expected event rate and energy spectra, and their time evolution at SuperKamiokande (SK) and the Sudbury Neutrino Observatory (SNO) by using a realistic neutrino burst model based on numerical simulations of supernova explosions. We also employ a realistic density profile based on a presupernova model for the calculation of neutrino conversion probability in supernova envelopes. These realistic models and numerical calculations allow us to quantitatively estimate the effects of neutrino oscillation in a more realistic way than previous studies. We then find that the degeneracy of the solutions of the solar neutrino problem can be broken by the combination of the SK and SNO detections of a future Galactic supernova.