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We consider implications of the loop process sneutrino -> gamma gamma in theMSSM with R-parity violation for future experiments, where the sneutrino isproduced as the only supersymmetric particle. We present a scenario for theR-parity violating couplings, where this clean decay, although rare withBr(sneutrino -> gamma gamma) ~ 10^{-6}, may be useful for sneutrino detectionover a range of sneutrino masses at the LHC. Furthermore, the newsneutrino-gamma-gamma effective coupling may induce detectable sneutrinoresonant production in gamma gamma collisions, over a considerably wide massrange. We compare sneutrino -> gamma gamma, gg throughout the paper with theanalogous yet quantitatively very different, Higgs -> gamma gamma, gg decaysand comment on the loop processes sneutrino -> WW, ZZ.Comment: 19 pages using REVTEX, 3 figures embadded in the text using epsfi

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

<b><i>R</i></b>-parity violation and uses of the rare decay<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>ν</mml:mi></mml:mrow><mml:mrow><mml:mi>̃</mml:mi></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mo>→</mml:mo><mml:mi>γ</mml:mi><mml:mi>γ</mml:mi></mml:math>in hadron and photon colliders

R-parity violation and uses of the rare decayν̃→γγin hadron and photon colliders