WIMP dark matter in the UμνSSM

The U$\mu\nu$SSM is a $U(1)'$ extension of the $\mu\nu$SSM supersymmetric model, where baryon-number-violating operators as well explicit mass terms are forbidden, and potential domain wall problem avoided. gauge anomaly-cancellation conditions impose presence exotic quark superfields in spectrum models, allow several singlet under standard model group, addition to right-handed neutrino superfields. structure implies an additional discrete $Z_2$ symmetry superpotential, ensuring stability which behaves WIMP dark matter without invoking $R$-parity. We analyze this novel possibility detail, using fermionic component candidate. In particular, we compute its amount relic density via $Z'$, Higgs-right sneutrino mediated annihilations, signals direct detection experiments. constraints on parameter space due $Z'$ searches at LHC imposed analysis, those from hadronization inside detector quarks. Large regions turn out be reach upcoming Darwin experiment.