| Probing the mass degeneracy of particles with different spins |
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| 作者姓名： | 张振华 吕刚 魏科伟 |
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| 作者单位： | 1 School of Nuclear Science and Technology, University of South China, Hengyang 421001, China;;2 Cooperative Innovation Center for Nuclear Fuel Cycle Technology & Equipment, University of South China, Hengyang 421001, China;;3 College of Science, Henan University of Technology, Zhengzhou 450001, China;;4 College of Physics and Electrical Engineering, Anyang Normal University, Anyang 455002, China |
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| 摘 要： | The spin is an important property of a particle. Although it is unlikely, there is still a possibility that two particles with di erent spins share similar masses. In this paper, we propose a method to probe this kind of mass degeneracy of particles with di erent spins. We use the cascade decay B+→X(3872)K+, X(3872)→D+D- to illustrate our method. It can be seen that the possible mass degeneracy of X(3872) can lead to interesting behavior in the corresponding cascade decay.
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| 关 键 词： | X(3872) mass degeneracy B meson |
| 收稿时间： | 2014-5-28 |
| 修稿时间： | 2014-11-4 |
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