Probing the Majorana mass scale of right-handed neutrinos in mSUGRA
F. Deppisch, H. Päs, A. Redelbach, R. Rückl, Y. Shimizu
Abstract
We discuss the perspectives of testing the right-handed Majorana mass scale MR of the SUSY see-saw model in the mSUGRA framework. Lepton-flavor violating low energy processes are analyzed in recently proposed post-LEP benchmark scenarios, taking into account present uncertainties and future developments in the neutrino sector. Nonobservation of mu -> e gamma in the next-generation PSI experiment will provide upper bounds on MR of the order of 10(12-14) GeV, while on the other hand, a positive signal for tau -> mu gamma at SUPERKEKB or the LHC may determine MR for a given mSUGRA scenario with an accuracy of a factor of 2.
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