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arXiv 1603.04514hep-ph
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中微子质量和振荡的研究现状与展望

Present Aspects and Future Prospects of Neutrino Mass and Oscillation

Monojit Ghosh

摘要:

中微子是中性的、自旋为$\frac{1}{2}$的粒子,只发生弱相互作用。实验观察到的中微子振荡现象证实了中微子是有质量的,并且不同的中微子味道之间存在混合。这构成了对超越标准模型(BSM)的物理学的第一个明确的暗示。在BSM理论中,拉格朗日量中的中微子质量项导致味基中的非对角中微子质量矩阵,该矩阵依赖于中微子质量和混合参数。因此,了解中微子振荡参数和理解中微子质量矩阵的基本对称性是非常重要的,因为它们可以提供一个新的物理学超越标准模型的见解。因此,测量中微子的各种振荡参数和研究中微子质量矩阵的结构是当前中微子物理研究的主要目标之一。在这篇论文中,我们研究了当前/未来的中微子振荡实验的潜力和它们之间的协同作用,以确定在中微子部门的未知参数,根据目前的实验结果。我们还研究了无菌中微子存在下中微子质量矩阵中织构零的唯象后果。

英文摘要:

Neutrinos are neutral, spin-$\frac{1}{2}$ particles which undergo only weak interactions. The experimentally observed phenomenon of neutrino oscillation establishes the fact that neutrinos are massive and there is mixing between different neutrino flavours. This constitutes the first unambiguous hint towards the physics Beyond Standard Model (BSM). In the BSM theories, the neutrino mass terms in the Lagrangian lead to the non-diagonal neutrino mass matrix in the flavour basis which depends on neutrino mass and mixing parameters. Thus knowledge of the neutrino oscillation parameters and understanding the underlying symmetries of the neutrino mass matrix are very important as they can give an insight to the new physics beyond Standard Model. Therefore the measurement of different oscillation parameters and studying the structure of the neutrino mass matrix are some of the main goals in neutrino physics at present. In this thesis we have studied the potential of present/future neutrino oscillation experiments and synergy between them to determine the unknown parameters in the neutrino sector in the light of current experimental results. We have also studied the phenomenological consequences of texture zeros in the neutrino mass matrices in the presence of a sterile neutrino.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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