Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π −π + decays using semileptonic B decays
Time-dependent CP asymmetries in the decay rates of the singly Cabibbosuppressed decays D0 → K−K+ and D0 → π −π + are measured in pp collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment. The D0 mesons are produced in semileptonic b-hadron decays, wher...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| 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:20.500.14342/3481 |
| Acceso en línea: | http://hdl.handle.net/20.500.14342/3481 https://doi.org/10.1007/JHEP04(2015)043 |
| Access Level: | acceso abierto |
| Palabra clave: | Gran col·lisionador d'hadrons (França i Suïssa) Interaccions d'hadrons 539 |
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Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π −π + decays using semileptonic B decaysBadalov, AlexeyCalvo Gomez, MiriamVilasis-Cardona, XavierLHCb Collaboration - CERNGran col·lisionador d'hadrons (França i Suïssa)Interaccions d'hadrons539Time-dependent CP asymmetries in the decay rates of the singly Cabibbosuppressed decays D0 → K−K+ and D0 → π −π + are measured in pp collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment. The D0 mesons are produced in semileptonic b-hadron decays, where the charge of the accompanying muon is used to determine the initial state as D0 or D 0 . The asymmetries in effective lifetimes between D0 and D 0 decays, which are sensitive to indirect CP violation, are determined to be AΓ K−K+ = −0.134 ± 0.077 +0.026 −0.034 % , AΓ π −π + = −0.092 ± 0.145 +0.025 −0.033 % , where the first uncertainties are statistical and the second systematic. This result is in agreement with previous measurements and with the hypothesis of no indirect CP violation in D0 decSpringerUniversitat Ramon Llull. La SalleCERN2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion19 p.http://hdl.handle.net/20.500.14342/3481https://doi.org/10.1007/JHEP04(2015)043reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésJournal of High Energy Physics, 2015, No. 43Attribution 4.0 International© CERNhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:20.500.14342/34812026-05-29T05:05:01Z |
| dc.title.none.fl_str_mv |
Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π −π + decays using semileptonic B decays |
| title |
Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π −π + decays using semileptonic B decays |
| spellingShingle |
Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π −π + decays using semileptonic B decays Badalov, Alexey Gran col·lisionador d'hadrons (França i Suïssa) Interaccions d'hadrons 539 |
| title_short |
Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π −π + decays using semileptonic B decays |
| title_full |
Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π −π + decays using semileptonic B decays |
| title_fullStr |
Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π −π + decays using semileptonic B decays |
| title_full_unstemmed |
Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π −π + decays using semileptonic B decays |
| title_sort |
Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π −π + decays using semileptonic B decays |
| dc.creator.none.fl_str_mv |
Badalov, Alexey Calvo Gomez, Miriam Vilasis-Cardona, Xavier LHCb Collaboration - CERN |
| author |
Badalov, Alexey |
| author_facet |
Badalov, Alexey Calvo Gomez, Miriam Vilasis-Cardona, Xavier LHCb Collaboration - CERN |
| author_role |
author |
| author2 |
Calvo Gomez, Miriam Vilasis-Cardona, Xavier LHCb Collaboration - CERN |
| author2_role |
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 539 |
| topic |
Gran col·lisionador d'hadrons (França i Suïssa) Interaccions d'hadrons 539 |
| description |
Time-dependent CP asymmetries in the decay rates of the singly Cabibbosuppressed decays D0 → K−K+ and D0 → π −π + are measured in pp collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment. The D0 mesons are produced in semileptonic b-hadron decays, where the charge of the accompanying muon is used to determine the initial state as D0 or D 0 . The asymmetries in effective lifetimes between D0 and D 0 decays, which are sensitive to indirect CP violation, are determined to be AΓ K−K+ = −0.134 ± 0.077 +0.026 −0.034 % , AΓ π −π + = −0.092 ± 0.145 +0.025 −0.033 % , where the first uncertainties are statistical and the second systematic. This result is in agreement with previous measurements and with the hypothesis of no indirect CP violation in D0 dec |
| publishDate |
2015 |
| dc.date.none.fl_str_mv |
2015 |
| 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/20.500.14342/3481 https://doi.org/10.1007/JHEP04(2015)043 |
| url |
http://hdl.handle.net/20.500.14342/3481 https://doi.org/10.1007/JHEP04(2015)043 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Journal of High Energy Physics, 2015, No. 43 |
| dc.rights.none.fl_str_mv |
Attribution 4.0 International © CERN http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
Attribution 4.0 International © CERN http://creativecommons.org/licenses/by/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
19 p. |
| dc.publisher.none.fl_str_mv |
Springer |
| publisher.none.fl_str_mv |
Springer |
| 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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