Gao, TJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
In this paper, we calculate the rare top quark decay t -> ch in a supersymmetric extension of the Standard Model where baryon and lepton numbers are local gauge symmetries. Adopting reasonable assumptions on the parameter space, we find that the branching ratios of t -> ch can reach 10(-3), which could be detected in the near future.
; Physics, Particles & Fields
National Natural Science Foundation of China 
; State Key Laboratory of MathematicsMechanization [Y3KF311CJ1]
; Natural Science Foundation of Hebei Province of China [A2013201277]
; Natural Science Fund of Hebei University [2011JQ05, 2012-242]