AI 中文总结
该研究提出适用于所有质量粒子的协变BCFW新形式体系，利用有质量旋量螺旋度形式体系推导通用BCFW移位，助力四维有质量粒子振幅的壳上递推实现。
AI 中文摘要
我们利用有质量旋量螺旋度形式体系描述一种新的有质量旋量构造，该构造可用于关联涉及有质量粒子的振幅表示中多种有用基矢选择；并以此推导适用于所有粒子（无论是否有质量）的通用BCFW移位新形式体系。该形式体系将助力更连贯地实现四维空间中计算有质量粒子振幅的壳上递推方法。
英文摘要
We use the massive spinor-helicity formalism to describe a novel construction for massive spinors which allows one to connect the many choices of bases useful in the representation of amplitudes involving massive particles, and we use this to derive a new formulation for the general BCFW shift that is valid regardless whether or which of the particles involved are massive or massless. This formalism should help facilitate a more coherent implementation of on-shell recursion for computing amplitudes involving massive particles in four dimensions.
Comments19 pages
