Top quark decay to a 125 GeV Higgs in the BLMSSMSupported by National Natural Science Foundation of China (11275036), Open Project of State Key Laboratory of Mathematics-Mechanization (Y3KF311CJ1), Natural Science Foundation of Hebei Province of China (A2013201277), Natural Science Fund of Hebei University (2011JQ05, 2012-242)
Tie-Jun Gao (State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100190, China, Department of Physics, Hebei University, Baoding 071002, China); Tai-Fu Feng (Department of Physics, Hebei University, Baoding 071002, China); Fei Sun (Department of Physics, Dalian University of Technology, Dalian 116024, China); Hai-Bin Zhang (Department of Physics, Dalian University of Technology, Dalian 116024, China); Shu-Min Zhao (Department of Physics, Hebei University, Baoding 071002, 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.
