Study of the rare decays of B0s and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector
A study of the decays B0s→ μ+μ− and B0 →μ+μ− has been performed using data corresponding to an integrated luminosity of 25 fb−1 of 7 and 8 TeV proton–proton collisions collected with the ATLAS detector during the LHC Run 1. For the B0 dimuon decay, an upper limit on the branching fraction is set at...
| Autores: | , , , , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2016 |
| País: | Argentina |
| Recursos: | Universidad Nacional de La Plata |
| Repositório: | SEDICI (UNLP) |
| Idioma: | inglês |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/78490 |
| Acesso em linha: | http://sedici.unlp.edu.ar/handle/10915/78490 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Física moun pairs large hadron collider ATLAS detector proton–proton collision |
| Resumo: | A study of the decays B0s→ μ+μ− and B0 →μ+μ− has been performed using data corresponding to an integrated luminosity of 25 fb−1 of 7 and 8 TeV proton–proton collisions collected with the ATLAS detector during the LHC Run 1. For the B0 dimuon decay, an upper limit on the branching fraction is set at B(B0 → μ+μ−) <4.2×10−10 at 95% confidence level. For B0s , the branching fraction B(B0s→ μ+μ−) = (0.9+1.1−0.8) ×10−9 is measured. The results are consistent with the Standard Model expectation with a p value of 4.8%, corresponding to 2.0 standard deviations. |
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