R_b and R_l in MSSM without R-Parity
| dc.creator | Yang, Jin Min | |
| dc.date | 1999-05-26 | |
| dc.date | 1999-10-13 | |
| dc.date.accessioned | 2026-07-07T12:26:37Z | |
| dc.date.available | 2026-07-07T12:26:37Z | |
| dc.description | We examined Z\ell^+\ell^- and Zb\bar b couplings in the minimal supersymmetric model (MSSM) with explicit R-parity violating interactions. We found the top quark L-violating couplings λ'_{i3k} and B-violating couplings λ''_{3j3} could give significant contributions through the top quark loops. To accomadate the latest R_{\ell} data, λ'_{i3k} are suject to stringent bounds, some of which can be much stronger than the current bounds. Within the current perturbative unitarity bound of 1.25 for λ''_{3j3}, the R_b value in R-violating MSSM agrees well with the experimental data at $2σ$ level, but may lie outside the 1σrange depending on the involved sfermion mass. | |
| dc.description | results updated | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9905486 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9905486 | |
| dc.identifier | Eur.Phys.J.C20:553-562,2001 | |
| dc.identifier | doi:10.1007/s100520100691 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/214937 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | R_b and R_l in MSSM without R-Parity | |
| dc.type | text |