# Search for resonant production of second-generation sleptons with same-sign dimuon events in proton–proton collisions at s=13TeV

09 April 2019

Abstract: A search is presented for resonant production of second-generation sleptons ( μ~L , ν~μ ) via the R -parity-violating coupling λ211′ to quarks, in events with two same-sign muons and at least two jets in the final state. The smuon (muon sneutrino) is expected to decay into a muon and a neutralino (chargino), which will then decay into a second muon and at least two jets. The analysis is based on the 2016 data set of proton-proton collisions at s=13TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb-1 . No significant deviation is observed with respect to standard model expectations. Upper limits on cross sections, ranging from 0.24 to 730 fb , are derived in the context of two simplified models representing the dominant signal contributions leading to a same-sign muon pair. The cross section limits are translated into coupling limits for a modified constrained minimal supersymmetric model with λ211′ as the only nonzero R -parity violating coupling. The results significantly extend restrictions of the parameter space compared with previous searches for similar models.

Published in: EPJC 79 (2019) 305