Measurement of the ratio of branching fractions B(B0 → K∗0γ )/B(B0 s → φγ ) and the direct CP asymmetry in B0 → K∗0γ
The ratio of branching fractions of the radiative B decays B0→K∗0γ andB0s→φγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of √s=7 TeV. The value obtained is B(B0→K∗0γ)B(B0s→φγ )=1.23±0.06 (stat.)±0.04 (s...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | 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:20.500.14342/3478 |
| Acceso en línea: | http://hdl.handle.net/20.500.14342/3478 https://doi.org/10.1016/j.nuclphysb.2012.09.013 |
| Access Level: | acceso abierto |
| Palabra clave: | Gran col·lisionador d'hadrons (França i Suïssa) Interaccions d'hadrons Col·lisions (Física nuclear) Partícules (Física nuclear) 539 |
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Measurement of the ratio of branching fractions B(B0 → K∗0γ )/B(B0 s → φγ ) and the direct CP asymmetry in B0 → K∗0γAbellan Beteta, CarlosCalvo Gomez, MiriamDomingo Bonal, FrancescRoselló-Canal, Maria del MarCamboni, AlessandroVilasis-Cardona, XavierLHCb Collaboration - CERNGran col·lisionador d'hadrons (França i Suïssa)Interaccions d'hadronsCol·lisions (Física nuclear)Partícules (Física nuclear)539The ratio of branching fractions of the radiative B decays B0→K∗0γ andB0s→φγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of √s=7 TeV. The value obtained is B(B0→K∗0γ)B(B0s→φγ )=1.23±0.06 (stat.)±0.04 (syst.)±0.10(fs/fd), where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the thirdis associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K∗0γ), the branching fractionB(B0s→φγ ) is measured to be(3.5±0.4)×10−5.The direct CP asymmetry in B0→K∗0γ decays has also been measured with the same data and found to be ACP(B0→K∗0γ)=(0.8±1.7(stat.)±0.9 (syst.))%. Both measurements are the most precise to date and are in agreement with the previous experimentalresults and theoretical expectations.ElsevierUniversitat Ramon Llull. La SalleCERN2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion18 p.http://hdl.handle.net/20.500.14342/3478https://doi.org/10.1016/j.nuclphysb.2012.09.013reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésNuclear Physics B, 2012, Vol. 867Attribution-NonCommercial-NoDerivatives 4.0 International© CERNhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:20.500.14342/34782026-05-29T05:05:01Z |
| dc.title.none.fl_str_mv |
Measurement of the ratio of branching fractions B(B0 → K∗0γ )/B(B0 s → φγ ) and the direct CP asymmetry in B0 → K∗0γ |
| title |
Measurement of the ratio of branching fractions B(B0 → K∗0γ )/B(B0 s → φγ ) and the direct CP asymmetry in B0 → K∗0γ |
| spellingShingle |
Measurement of the ratio of branching fractions B(B0 → K∗0γ )/B(B0 s → φγ ) and the direct CP asymmetry in B0 → K∗0γ Abellan Beteta, Carlos Gran col·lisionador d'hadrons (França i Suïssa) Interaccions d'hadrons Col·lisions (Física nuclear) Partícules (Física nuclear) 539 |
| title_short |
Measurement of the ratio of branching fractions B(B0 → K∗0γ )/B(B0 s → φγ ) and the direct CP asymmetry in B0 → K∗0γ |
| title_full |
Measurement of the ratio of branching fractions B(B0 → K∗0γ )/B(B0 s → φγ ) and the direct CP asymmetry in B0 → K∗0γ |
| title_fullStr |
Measurement of the ratio of branching fractions B(B0 → K∗0γ )/B(B0 s → φγ ) and the direct CP asymmetry in B0 → K∗0γ |
| title_full_unstemmed |
Measurement of the ratio of branching fractions B(B0 → K∗0γ )/B(B0 s → φγ ) and the direct CP asymmetry in B0 → K∗0γ |
| title_sort |
Measurement of the ratio of branching fractions B(B0 → K∗0γ )/B(B0 s → φγ ) and the direct CP asymmetry in B0 → K∗0γ |
| dc.creator.none.fl_str_mv |
Abellan Beteta, Carlos Calvo Gomez, Miriam Domingo Bonal, Francesc Roselló-Canal, Maria del Mar Camboni, Alessandro Vilasis-Cardona, Xavier LHCb Collaboration - CERN |
| author |
Abellan Beteta, Carlos |
| author_facet |
Abellan Beteta, Carlos Calvo Gomez, Miriam Domingo Bonal, Francesc Roselló-Canal, Maria del Mar Camboni, Alessandro Vilasis-Cardona, Xavier LHCb Collaboration - CERN |
| author_role |
author |
| author2 |
Calvo Gomez, Miriam Domingo Bonal, Francesc Roselló-Canal, Maria del Mar Camboni, Alessandro Vilasis-Cardona, Xavier LHCb Collaboration - CERN |
| author2_role |
author author author author author author |
| dc.contributor.none.fl_str_mv |
Universitat Ramon Llull. La Salle CERN |
| dc.subject.none.fl_str_mv |
Gran col·lisionador d'hadrons (França i Suïssa) Interaccions d'hadrons Col·lisions (Física nuclear) Partícules (Física nuclear) 539 |
| topic |
Gran col·lisionador d'hadrons (França i Suïssa) Interaccions d'hadrons Col·lisions (Física nuclear) Partícules (Física nuclear) 539 |
| description |
The ratio of branching fractions of the radiative B decays B0→K∗0γ andB0s→φγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of √s=7 TeV. The value obtained is B(B0→K∗0γ)B(B0s→φγ )=1.23±0.06 (stat.)±0.04 (syst.)±0.10(fs/fd), where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the thirdis associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K∗0γ), the branching fractionB(B0s→φγ ) is measured to be(3.5±0.4)×10−5.The direct CP asymmetry in B0→K∗0γ decays has also been measured with the same data and found to be ACP(B0→K∗0γ)=(0.8±1.7(stat.)±0.9 (syst.))%. Both measurements are the most precise to date and are in agreement with the previous experimentalresults and theoretical expectations. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/20.500.14342/3478 https://doi.org/10.1016/j.nuclphysb.2012.09.013 |
| url |
http://hdl.handle.net/20.500.14342/3478 https://doi.org/10.1016/j.nuclphysb.2012.09.013 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Nuclear Physics B, 2012, Vol. 867 |
| dc.rights.none.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International © CERN http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International © CERN http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
18 p. |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
reponame:Recercat. Dipósit de la Recerca de Catalunya instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
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Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
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Recercat. Dipósit de la Recerca de Catalunya |
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Recercat. Dipósit de la Recerca de Catalunya |
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