b-quark mediated neutrinoless mu(-)-e(-) conversion in presence of R-parity violation

摘要

We found that in supersymmetric models with R-parity non-conservation (RpSUSY) the b-quarks may appreciably contribute to exotic neutrinoless mu (-)-e(-) conversion in nuclei via the triangle diagram with two external gluons. This allowed us to extract previously overlooked constraints on the third generation trilinear R-p parameters significantly more stringent than those existing in the literature. (C) 2001 Elsevier Science B.V. All rights reserved. References: 20