μ→eγfrom supersymmetry withoutRparity

Abstract

Starting from the new sources of LL-and LR-scalar (slepton) mixings due to the R-parity violation, we discuss the structure of lepton-flavor violation focusing on the radiative decay of a muon into an electron. Using an optimal parametrization, we give the general formulas for the one-loop contributions, from which we discuss all combinations of R-parity violating parameters that possibly have a substantial contribution to the µ → e γ decay width. An exact numerical study is performed to obtain explicit bounds on the parameters under the present experimental limit. The most interesting one involves a combination of bilinear and trilinear couplings.

Search for Leptoquarks

“…Recent experiments on the anomalous magnetic moment of the muon ∆a µ [2] 1 and on the 1 Recent calculations of ∆aµ discovered a sign error in the pseudoscalar pole contribution, which reduces the deviaatomic parity violation in Cs [4] which showed slight deviations from the SM expectation have been interpreted in the framework of new LQs by [5,6]. These deviations would be in agreement with the expectation from LQs of mass about 1 and 1-2 TeV, respectively.…”

Leptoquark induced rare decay amplitudesh→τ∓μ±andτCheung1, Keung2, Tseng3 2016Phys. Rev. DSelf Cite

“…It was shown a long time ago [28] and more recently [29] that if we choose, as we have chosen in the above analysis, the left-handed coupling to be much larger than the right-handed coupling for the muon, i.e. g The required leptoquarks χ and Ω can be strongly produced at the high energy and high luminosity hadron colliders.…”

Charged lepton flavor violation in supersymmetry with bilinearR-parity violation

“…The waiving of the R-parity symmetry in the MSSM provides an alternative scenario to explain the generation of small neutrino masses. In this case the R-parity violating operators can be constrained by rare processes [9,10,11,12].…”