arXiv subjects
Publications and source records attributed to P. S. Cherzor.
We present a method for symbolic evaluation of Feynman amplitudes. We construct special polarization basis for spinor particles which produces compact expressions for tensor products of basis spinors.
We clarify and extend the theorem of Sveshnikov and Tkachov [hep-ph/9512370], which gives an explicit connection between jet observables and energy-momentum tensor. We check the relation between jet observables and energy-momentum tensor for non-scalar (spinor and vector) field, give a correct treatment of the light-cone singularity for massless particles, and extend the theorem to the massless case. We also discuss the issue of gauge invariance.