| Feynman propagator for an arbitrary half-integral spin |
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| 作者姓名： | 黄时中 张鹏飞 阮图南 祝玉灿 郑志鹏 |
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| 作者单位： | [1]DepartmentofPhysics,AnhuiNormalUniversity,Wuhu241000,China [2]ChinaCenterofAdwncedSdenceandTechnology(WorldLaboratory),Beijing100080,China [3]DepartmentofModernPhysicsandNatlonadSynchrotronRadiationLaboratory,UniversityofScienceandTechnologyofChina,Hefel230027,China [4]InstituteofHighEnergyPhysics,ChineseAcademyofScience,Belting100039,China |
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| 摘 要： | Based on the solution to Bargmann-Wigner equation for a particle with arbitrary half-integral spin, a direct derivation of the projection operator and propagator for a particle with arbitrary half-integral spin is worked out. The projection operator constructed by Behrends and Fronsdal is re-deduced and confirmed and simplified, the general commutation rules and Feynman propagator with additional non-covariant terms for a free particle with arbitrary half-inteRzal spin are derived, and explicit expressions for the propagators for spins 3/2, 5/2 and 7/2 are provided.
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| 关 键 词： | 高能物理 射影算子 计算原则 费曼传播子 半完整自旋 Bargmann-Wigner方程 |
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