R-parity Violating Radiative Photino Decay in Supersymmetric Models

Abstract

It has been shown that unless the tri-linear R-parity violating coupling $λ_{i33}$ (i = 1, 2) is small enough ($λ_{i33}<$ ${10}^{-2}$ for MSSM and ${10}^{-3}$ for GMSB model),the partial decay width of photino decaying into &#39;photon + $ν_{e,μ}$&#39;, both in supergravity motivated (MSSM) and gauge mediated (GMSB) supersymmetric models are larger than the partial decay width of photino decaying into &#39;photon + goldstino&#39; in R-parity conserving GMSB model including one loop supersymmetric QED correction.