0 Constraints on R - parity Violating Supersymmetry from μ − − e − Nuclear Conversion
نویسنده
چکیده
All the R-parity violating tree-level contributions to the flavor violating μ − e conversion in a nucleus have been studied in the minimal supersymmetric model including the trilinear and the bilinear terms in the superpotential as well as in the soft supersymmetry breaking sector. In calculating the μ−−e− conversion rate the nucleon and nuclear structure have consistently been taken into account. We have found that the previously overlooked contribution of the strange quark sea in the nucleon is comparable with the contribution of the valence quarks. From the available experimental data on μ − e conversion in 48T i and 208Pb we have extracted new stringent limits on the R-parity violating parameters. PACS: 12.60Jv, 12.15.-y, 11.30.Fs, 23.40.Bw
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ep - p h / 99 04 33 5 v 3 1 9 Fe b 20 01 Exotic μ − − e − conversion in nuclei and R - parity violating supersymmetry
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