Nuclear de-excitation associated with neutrino-carbon interactions
Nuclear de-excitation associated with neutrino-carbon interactions
复制标题
与中微子-碳相互作用相关的核去激发
DOI：
10.1088/1742-6596/2156/1/012189
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
S.Abe et al. (KamLAND collaboration)
中科院分区：
文献类型：
--
作者：
Wu Yuqi;Song Xiulan;Zhang Yuhong;Liu Yaohui;Su Bingqin;Zhou Yiwen;S.Abe et al. (KamLAND collaboration)
在30 MeV以下的低能区进行超新星残留中微子的实验研究，由于泡利阻塞效应和残余核去激发等复杂的核效应，中微子相互作用具有很大的不确定性。理解核失激的影响尤其重要，因为液体闪烁体探测器测量到的中子可以通过去激发射。我们使用TALYS和Geant4建立了一个系统的方法来预测与中微子-碳相互作用相关的核去激发。这一预测与中微子事件产生器的结果相结合，我们发现中子多重数有很大增加。
Neutrino interactions in low energy regions below 30 MeV, where the experimental searches for supernova relic neutrino are conducted, have a large uncertainty due to complicated nuclear effects such as the Pauli blocking effect and de-excitation of a residual nucleus. Understanding the effect of nuclear de-excitation is especially critical since neutrons measured by liquid scintillator detectors can be emitted via de-excitation. We build a systematic method to predict nuclear de-excitation associated with neutrino-carbon interaction using TALYS and Geant4. This prediction is combined with the results of neutrino event generators, and we find a large increase in neutron multiplicity.