Measurement of the ratio of branching fractions B(B0→K*0γ)/B(B0s→ϕγ)
The ratio of branching fractions of the radiative B decays B0→K*0γ and B0s→ϕγ has been measured using 0.37 fb−1 of pp collisions at a center of mass energy of √s=7 TeV, collected by the LHCb experiment. The value obtained is B(B0→K*0γ)B(B0s→ϕγ)=1.12±0.08+0.06+0.09−0.04−0.08, where the first uncert...
| Autores: | , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2012 |
| País: | España |
| Recursos: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:20.500.14342/3263 |
| Acesso em linha: | http://hdl.handle.net/20.500.14342/3263 https://doi.org/10.1103/PhysRevD.85.112013 |
| Access Level: | acceso abierto |
| Palavra-chave: | Gran col·lisionador d'hadrons (França i Suïssa) Col·lisions (Física nuclear) Partícules (Física nuclear) 53 |
| Resumo: | The ratio of branching fractions of the radiative B decays B0→K*0γ and B0s→ϕγ has been measured using 0.37 fb−1 of pp collisions at a center of mass energy of √s=7 TeV, collected by the LHCb experiment. The value obtained is B(B0→K*0γ)B(B0s→ϕγ)=1.12±0.08+0.06+0.09−0.04−0.08, where the first uncertainty is statistical, the second systematic, and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average for B(B0→K*0γ)=(4.33±0.15)×10−5, the branching fraction B(B0s→ϕγ) is measured to be (3.9±0.5)×10−5, which is the most precise measurement to date. |
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