On-shell renormalization of neutralino and chargino mass matrices in R-parity violating models – Correlation between LSP decays and neutrino mixing angles revisited

摘要

We present an on-shell renormalization scheme for the neutralino and chargino mass matrices for two Rparity violating models, namely bilinear R-parity violation and the μνSSM with one right-handed neutrino superfield. We discuss in both models how to obtain neutrino masses and mixing angles correctly as well as differences to the existing DR calculations. Both models predict correlations between neutrino mixing angles and ratios of R-parity violating decays such as χ_1~ 0→l~±W~? which can be tested for example at the LHC. We point out that there are cases where one has to include the complete NLO corrections for the decays χ_1~0→l~±W~? to predict reliably the correlations between neutrino- and collider-physics. Moreover, we discuss briefly the implementation of these decays in the public program CNNDecays.