Do hep neutrinos affect the solar neutrino energy spectrum
Do hep neutrinos affect the solar neutrino energy spectrum
复制标题
氦中微子会影响太阳中微子能谱吗
DOI：
10.1016/s0370-2693(98)00920-4
复制
发表时间：
1998
影响因子：
4.4
通讯作者：
P. Krastev
中科院分区：
文献类型：
--
作者：
J. Bahcall;P. Krastev
如果3he +p→4He +e++νe （hep）反应的低能截面比最佳（但不确定的）理论估计大约20倍，那么这个反应可能会显著影响由太阳中微子相互作用产生的电子能谱，并在超级神冈、SNO和ICARUS实验中测量。我们将不同假设hep通量和不同中微子振荡情景下的预测能谱与观测到的超级神冈能谱进行了比较。具有增强hep贡献的光谱更好地符合超级神冈数据。
If the low energy cross section for3He +p→4He +e++νe, the `hep' reaction, is ≳20 times larger than the best (but uncertain) theoretical estimates, then this reaction could significantly influence the electron energy spectrum produced by solar neutrino interactions and measured in the SuperKamiokande, SNO, and ICARUS experiments. We compare predicted energy spectra for different assumed hep fluxes and different neutrino oscillation scenarios with the observed SuperKamiokande spectrum. The spectra with enhanced hep contributions provide better fits to the SuperKamiokande data.