Center for Theoretical Physics of the Universe (CTPU)

Hunting long-lived particles at the LHC in the μνSSM

by Dr. Iñaki Lara Pérez (Madrid, Autonoma U. & Madrid, IFT)

Wednesday, 19 June 2019 from to (Asia/Seoul)
at CTPU Seminar Room
Fourth floor IBS Building, 55, Expo-ro, Yuseong-gu, Daejeon, Korea, 34126
The μνSSM is the minimal supersymmetric extension of the standard model capable of solving the mu problem of the MSSM and generating neutrino masses, through an R-parity violating coupling between Higgs superfields and right-handed neutrino superfields. 

The smallness of the neutrino Yukawa coupling, necessary for generating correct neutrino physics, dictates the size of the R-parity violating (RPV) interactions. This has important phenomenological consequences both for collider and DM searches. 

In the μνSSM, the gravitino has a life-time long enough to be a viable dark matter candidate. In addition, the smallness of RPV causes a suppression of the decay amplitude of the lightest supersymmetric particle big enough to make its decay displaced at colliders.