Search for lepton-number violating B+ → X−ℓ+ℓ'+ decays
We report on a search for eleven lepton-number violating processes B + → X − ℓ + ℓ ' + with X − = K − , π − , ρ − , K * − , or D − and ℓ + / ℓ ' + = e + or μ + , using a sample of 471 ± 3 million B ¯ B events collected with the BABAR detector at the PEP-II e + e − collider at the SLAC Nati...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/131189 |
| Acceso en línea: | https://hdl.handle.net/2445/131189 |
| Access Level: | acceso abierto |
| Palabra clave: | Física de partícules Experiments Leptons (Física nuclear) Particle physics Leptons (Nuclear physics) |
| Sumario: | We report on a search for eleven lepton-number violating processes B + → X − ℓ + ℓ ' + with X − = K − , π − , ρ − , K * − , or D − and ℓ + / ℓ ' + = e + or μ + , using a sample of 471 ± 3 million B ¯ B events collected with the BABAR detector at the PEP-II e + e − collider at the SLAC National Accelerator Laboratory. We find no evidence for any of these modes and place 90% confidence level upper limits on their branching fractions in the range ( 1.5 - 26 ) × 1 0 − 7 . |
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