Abstract
We consider a simple addition to the minimal supersymmetric Standard Model (MSSM) of a “sister Higgs” (), a Higgs field that participates in electroweak symmetry breaking but does not give any direct masses to Standard Model matter fields. If this new field carries charge under a new gauge group, , the Higgs mass is naturally much larger than in the MSSM due to a next-to-minimal supersymmetric Standard Model–type interaction, but with playing the role of . The addition of the sister Higgs allows new -parity violating operators , which are less constrained than a conventional leptonic -parity violation. Unification motivates the presence of colored -charged fields, whose production can lead to new -rich final states and modifications to decays of gluinos, as well as new opportunities for -parity violation. The presence of additional sister charges allows the possibilities that a lightest sister-charged particle (LSiP) could be stable, although we find the possibility of a LSiP dark matter candidate is generally very constrained.
8 More- Received 26 February 2013
DOI:https://doi.org/10.1103/PhysRevD.91.055003
© 2015 American Physical Society