【摘 要】
：
Based on the solution to the Bargmann-Wigner equations, a direct derivation of the projection operator and Feynman propagatorfor a free massive particle of arbi
【机 构】
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Department of Physics,China Center of Advanced Science and Technology (World Laboratory),Department
【基金项目】
：
高等学校博士学科点专项科研项目;the Foundation of National Key Program for Basic Research of China under;国家自然科学基金;安徽省自然科学基金
论文部分内容阅读
Based on the solution to the Bargmann-Wigner equations, a direct derivation of the projection operator and Feynman propagatorfor a free massive particle of arbitrary spin is worked out. The projection operator constructed by Behrends and Fronsdal is re-deduced and confirmed, and simplified in the case of half-integral spin, the general commutation rules and Feynman propagator with additional non-covariant terms for a free massive particle with any spin are derived, and explicit expressions for the propagators for spins 3/2, 2, 5/2, 3, 7/2, and 4 are provided.
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