K -> pi nu nubar and R-parity violating supersymmetry

Details K -> pi nu nubar and R-parity violating supersymmetry K -> pi nu nubar and R-parity violating supersymmetry

2005-05-11

arxiv.org/abs/hep-ph/0505094v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures, Moriond EW 2005

Scientific paper

Motivated by the recent experimental data of the E787, E949 and E865 collaborations and by the difference between the standard model (SM) prediction and data, we consider in detail R-parity violating (RPV) supersymmetric contributions to K -> pi nu nubar. The theoretical cleaness of this decay constitutes a useful way to provide constraints, independent of long distance effects. Including the possiblity of interferences between one-loop R-parity conserving (RPC) supersymmetry and tree-level RPV supersymmetric contributions, our results allow to improve the limits on R-parity violating couplings with respect to previous analyses.

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