| 左右手对称模型中重中微子衰变 |
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| 引用本文： | 覃仁晖,贺麟云,宁国柱.左右手对称模型中重中微子衰变[J].河北大学学报(自然科学版),2023,43(2):139-145. |
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| 作者姓名： | 覃仁晖 贺麟云 宁国柱 |
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| 作者单位： | 河北大学物理科学与技术学院 |
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| 基金项目： | 国家自然科学基金资助项目(11605037) |
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| 摘 要： | 在左右手对称模型中，考虑重中微子质量少于左手规范玻色子WL的质量，计算了重中微子的各类衰变，发现重中微子总衰变宽度按贡献可以分为左手部分为主、右手部分为主以及左右手部分可比拟3种情况.结果表明：当轻重中微子混合取最大值1,右手规范玻色子WR取实验允许的最低质量时，重中微子总衰变宽度仍然远小于其质量.
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| 关 键 词： | 重中微子 轻子数破坏 衰变宽度 左右手对称模型 |
| 收稿时间： | 2022-05-08 |
Heavy neutrino decays in left-right symmetric model |
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| QIN Renhui,HE Linyun,NING Guozhu.Heavy neutrino decays in left-right symmetric model[J].Journal of Hebei University (Natural Science Edition),2023,43(2):139-145. |
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| Authors: | QIN Renhui HE Linyun NING Guozhu |
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| Institution: | College of Physics Science and Technology, Hebei University, Baoding 071002, China |
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| Abstract: | In left-right symmetric model, various kinds of decay channels of heavy neutrino are evaluated when its mass is lighter than the mass of left handed gauge boson WL. It is found that the total decay rate of heavy neutrino can be classified into left part dominance, right part dominance, and coexistence of left and right part. The results shows that when the heavy-light neutrino mixings is equaled to 1 and the mass of right handed gauge boson WR is taken to be the lightest one satisfied by experiments, the total decay rate of heavy neutrino is still far smaller than its mass. |
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| Keywords: | heavy neutrino lepton number violation decay rate left-right symmetric model |
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