R-parity violation and uses of the rare decay sneutrino-->gamma+gamma in hadron and photon colliders

Abstract

We consider implications of the loop process sneutrino -> gamma gamma in the MSSM with R-parity violation for future experiments, where the sneutrino is produced as the only supersymmetric particle. We present a scenario for the R-parity violating couplings, where this clean decay, although rare with Br(sneutrino -> gamma gamma) ~ 10^{-6}, may be useful for sneutrino detection over a range of sneutrino masses at the LHC. Furthermore, the new sneutrino-gamma-gamma effective coupling may induce detectable sneutrino resonant production in gamma gamma collisions, over a considerably wide mass range. We compare sneutrino -> gamma gamma, gg throughout the paper with the analogous yet quantitatively very different, Higgs -> gamma gamma, gg decays and comment on the loop processes sneutrino -> WW, ZZ.

19 pages using REVTEX, 3 figures embadded in the text using epsfig

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Cited by in corpus (13)

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• Searching for left sneutrino LSP at the LHC
• Production and decay of the neutral top-pion in high energy $e^{+}{e}^{-}$ colliders
• Lepton flavor-changing processes in R-parity violating MSSM: Z->l_i l_j and γγ->l_i l_j under new bounds from l_i->l_j γ
• The flavor changing top decay t-->c+sneutrino or sneutrino-->t+c(bar) in the MSSM without R-parity
• Single sneutrino production at hadron colliders
• Single sneutrino production in $\gamma \gamma$ collisions
• Candidates for HyperCharge Axion in Extensions of the Standard Model
• A study of single sneutrino production in association with fermion pairs at polarised photon colliders
• 3- and 2-body supersymmetric processes: predictions, challenges and prospectives
• Single superparticle production via $\gamma \gamma$ collision with explicit R-parity violation