Minimal gauge origin of baryon triality and flavorful signatures at the LHC

作者：Lee Hye Sung^*

来源：Physics Letters B, 2011, 704(4): 316-321.

DOI：10.1016/j.physletb.2011.09.040

Baryon triality (B-3) is a Z(3) discrete symmetry that can protect the proton from decay. Although its realization does not require supersymmetry, it is particularly appealing in the supersymmetry as an alternative to the popular R-parity. We discuss the issues in gauging B-3, and present the minimal supersymmetric model with B-3 as the remnant discrete symmetry of a TeV scale U(1) gauge symmetry. A flavor-dependent U(1) charge is necessary to achieve this, and it results in very distinguishable and flavorful predictions for the LHC experiments. We find a complementarity between a 2-lepton sneutrino resonance and a 4-lepton Z' resonance in the supersymmetry search when a certain condition is satisfied.
In addition, we introduce baryon tetrality (B-4), which would play an equivalent role if there are four fermion generations.

• 出版日期2011-10-19