Speaker
Description
The supersymmetric custodial triplet model (SCTM), which is a fully supersymmetric generalization of the Georgi-Machacek (GM) model, is constructed by extending the Higgs sector of the minimal supersymmetric standard model by three triplet chiral superfields with hypercharge $Y = 0, \pm1$, in order to maintain the holomorphy of the superpotential and satisfy the requirements of anomaly cancellation.
The global $SU(2)_L \otimes SU(2)_R$ symmetry has to be respected for the superpotential and the soft supersymmetry-breaking sector, where the former is only broken by the Yukawa couplings, while the latter is broken spontaneously to the custodial $SU(2)_V$ symmetry after electroweak symmetry breaking, similar to the GM model.
The ensuing complicated spectrum not only gives rise to rich collider phenomenology but also provides more viable weakly interacting massive particle (WIMP) dark matter (DM) candidates.
We explore the viability of WIMP solutions for DM in the SCTM by considering the increasingly stringent constraints from direct-detection DM experiments. Our numerical simulations show that a significant portion of the SCTM parameter space remains viable despite these constraints.