Cutting massless four-loop propagators
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep12(2019)026
Abstract: Abstract Among the unitarity cuts of 4-loop massless propagators two kinds are currently fully known: the 2-particle cuts with 3 loops corresponding to form-factors, and the 5-particle phase-space integrals. In this paper we calculate master… read more here.
Keywords: particle cuts; four loop; cutting massless; loop propagators ... See more keywords
Dynamical Lorentz symmetry breaking in a 4D massless four-fermion model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.065021
Abstract: In this paper, we study the spontaneous Lorentz symmetry breaking for a four-dimensional massless four-fermion model. Our methodology is based on use of the rationalized propagator. We show that a bumblebee potential arises as a… read more here.
Keywords: lorentz symmetry; fermion model; four fermion; symmetry breaking ... See more keywords