B0–B¯0mixing in supersymmetry with gauged baryon and lepton numbers

• DOI: 10.1016/j.nuclphysb.2014.09.006
• Publication Date: 2014-09-16T12:22:31Z
• Authors: Fei Sun; Tai-Fu Feng; Shu-Min Zhao; Hai-Bin Zhang; Tie-Jun Gao; Jian-Bin Chen
• Keywords: Bar (unit); Hamiltonian (control theory)

We perform an analysis on ${B^0} - {{\bar B}^0}$ mixing in the extension of minimal supersymmetric standard model where baryon and lepton numbers are local gauge symmetries (BLMSSM) by using effective Hamiltonian method. And constraint a 125 GeV Higgs to parameter space has also been consid-ered. The numerical results indicate that contributions extra particles can be sizeable mixing. For certain sets, theoretical prediction mass differences $\Delta m_{B}$ agrees with current experimental result. Furthermore, BLMSSM preliminarily constrain space. With development more precise determina-tions, will have clearer picture this further constrained.