Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the B 0 s → ϕϕ branching fraction is measured to be B(B0s→ϕϕ)=(1.84±0.05(stat)±0.07(syst)±0.11(fs/fd)±0.12(norm))×10−5, where f s /f d represents the ratio of...
| Authors: | ; ; ; |
|---|---|
| Format: | Article |
| Status: | Published version |
| Publication date: | 2015 |
| Country: | España |
| Institution: | Universitat Ramon Llull (URL) |
| Repository: | DAU Arxiu Digital de la Universitat Ramon Llull |
| OAI Identifier: | oai:dau.url.edu:20.500.14342/3159 |
| Online Access: | http://hdl.handle.net/20.500.14342/3159 https://doi.org/10.1007/JHEP10(2015)053 |
| Access Level: | Open access |
| Keyword: | Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) Col·lisions (Física nuclear) 539 |
| _version_ | 1878733553479450624 |
|---|---|
| author | Badalov, Alexey |
| author2 | Calvo Gómez, Míriam Vilasís Cardona, Xavier LHCb Collaboration - CERN |
| author2_role | author author author |
| author_browse | Badalov, Alexey Calvo Gómez, Míriam LHCb Collaboration - CERN Vilasís Cardona, Xavier |
| author_facet | Badalov, Alexey Calvo Gómez, Míriam Vilasís Cardona, Xavier LHCb Collaboration - CERN |
| author_role | author |
| collection | DAU Arxiu Digital de la Universitat Ramon Llull |
| description | Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the B 0 s → ϕϕ branching fraction is measured to be B(B0s→ϕϕ)=(1.84±0.05(stat)±0.07(syst)±0.11(fs/fd)±0.12(norm))×10−5, where f s /f d represents the ratio of the B 0 s to B 0 production cross-sections, and the B 0 → ϕK *(892)0 decay mode is used for normalization. This is the most precise measurement of this branching fraction to date, representing a factor five reduction in the statistical uncertainty compared with the previous best measurement. A search for the decay B 0 → ϕϕ is also made. No signal is observed, and an upper limit on the branching fraction is set as B(B0→ϕϕ)<2.8×10−8 at 90% confidence level. This is a factor of seven improvement compared to the previous best limit. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_586fe378ed564e7ab171f75f2bc2d6f7 |
| institution | Universitat Ramon Llull (URL) |
| instname_str | Universitat Ramon Llull (URL) |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:dau.url.edu:20.500.14342/3159 |
| publishDate | 2015 |
| publishDateSort | 2015 |
| publisher | Springer |
| publisherStr | Springer |
| reponame_str | DAU Arxiu Digital de la Universitat Ramon Llull |
| spelling | Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ Badalov, Alexey Calvo Gómez, Míriam Vilasís Cardona, Xavier LHCb Collaboration - CERN Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) Col·lisions (Física nuclear) 539 Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the B 0 s → ϕϕ branching fraction is measured to be B(B0s→ϕϕ)=(1.84±0.05(stat)±0.07(syst)±0.11(fs/fd)±0.12(norm))×10−5, where f s /f d represents the ratio of the B 0 s to B 0 production cross-sections, and the B 0 → ϕK *(892)0 decay mode is used for normalization. This is the most precise measurement of this branching fraction to date, representing a factor five reduction in the statistical uncertainty compared with the previous best measurement. A search for the decay B 0 → ϕϕ is also made. No signal is observed, and an upper limit on the branching fraction is set as B(B0→ϕϕ)<2.8×10−8 at 90% confidence level. This is a factor of seven improvement compared to the previous best limit. Springer http://hdl.handle.net/20.500.14342/3159 https://doi.org/10.1007/JHEP10(2015)053 |
| spellingShingle | Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ Badalov, Alexey Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) Col·lisions (Física nuclear) 539 |
| status_str | publishedVersion |
| title | Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ |
| title_full | Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ |
| title_fullStr | Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ |
| title_full_unstemmed | Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ |
| title_short | Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ |
| title_sort | Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ |
| topic | Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) Col·lisions (Física nuclear) 539 |
| topic_facet | Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) Col·lisions (Física nuclear) 539 |
| url | http://hdl.handle.net/20.500.14342/3159 https://doi.org/10.1007/JHEP10(2015)053 |