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Measurement of the semileptonic CP asymmetry in B0-B¯0 mixing

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LHCb Collaboration (Including: Back, J. J., Blake, Thomas, Craik, Daniel, Gershon, T. J., Kreps, Michal, Langenbruch, Christoph, Latham, Thomas, O'Hanlon, Daniel P., Pilař, T., Poluektov, Anton, Reid, Matthew M., Silva Coutinho, R., Wallace, Charlotte and Whitehead, M. (Mark)). (2015) Measurement of the semileptonic CP asymmetry in B0-B¯0 mixing. Physical Review Letters, 114 (4). 041601. doi:10.1103/PhysRevLett.114.041601

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Official URL: http://dx.doi.org/10.1103/PhysRevLett.114.041601

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Abstract

The semileptonic CP asymmetry in B0-¯B0 mixing, adsl, is measured in proton-proton collision data, corresponding to an integrated luminosity of 3.0  fb−1, recorded by the LHCb experiment. Semileptonic B0 decays are reconstructed in the inclusive final states D−μ+ and D*−μ+, where the D− meson decays into the K+π−π− final state and the D*− meson into the ¯D0(→K+π−)π− final state. The asymmetry between the numbers of D(*)−μ+ and D(*)+μ− decays is measured as a function of the decay time of the B0 mesons. The CP asymmetry is measured to be adsl=(−0.02±0.19±0.30)%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of adsl to date and is consistent with the prediction from the standard model.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Particles (Nuclear physics), Nuclear physics, CP violation (Nuclear physics), Beta decay
Journal or Publication Title: Physical Review Letters
Publisher: American Physical Society
ISSN: 0031-9007
Official Date: 28 January 2015
Dates:
DateEvent
28 January 2015Available
1 October 2014Submitted
Date of first compliant deposit: 30 July 2019
Volume: 114
Number: 4
Article Number: 041601
DOI: 10.1103/PhysRevLett.114.041601
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDCERNhttp://dx.doi.org/10.13039/100012470
UNSPECIFIEDBrazil. Coordenação do Aperfeiçoamento de Pessoal de Nível Superiorhttp://viaf.org/viaf/144117280
UNSPECIFIEDConselho nacional de desenvolvimento cientifico e tecnologicohttp://viaf.org/viaf/154202039
UNSPECIFIEDFundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeirohttp://viaf.org/viaf/121741474
UNSPECIFIEDFinanciadora de Estudos e Projetos (Brazil)http://viaf.org/viaf/127829891
UNSPECIFIED[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
UNSPECIFIEDInstitut national de physique nucléaire et de physique des particules (France)http://viaf.org/viaf/137207166
UNSPECIFIEDGermany. Bundesministerium für Bildung, Wissenschaft, Forschung und Technologiehttp://viaf.org/viaf/145926534
UNSPECIFIED[DFG] Deutsche Forschungsgemeinschafthttp://dx.doi.org/10.13039/501100001659
UNSPECIFIEDHermann-von-Helmholtz-Gemeinschaft Deutscher Forschungszentrenhttp://viaf.org/viaf/153269911
UNSPECIFIEDMax-Planck-Gesellschaft zur Förderung der Wissenschaftenhttp://viaf.org/viaf/157753532
UNSPECIFIEDScience Foundation Irelandhttp://dx.doi.org/10.13039/501100001602
UNSPECIFIED[INFN] Instituto Nazionale di Fisica Nuclearehttp://dx.doi.org/10.13039/501100004007
UNSPECIFIEDStichting voor Fundamenteel Onderzoek der Materiehttp://dx.doi.org/10.13039/501100001712
UNSPECIFIED[NWO] Nederlandse Organisatie voor Wetenschappelijk Onderzoekhttp://dx.doi.org/10.13039/501100003246
UNSPECIFIEDPoland. Ministerstwo Nauki i Szkolnictwa Wyższegohttp://viaf.org/viaf/128847428
UNSPECIFIEDNarodowe Centrum Naukihttp://dx.doi.org/10.13039/501100004281
UNSPECIFIEDRomania. Ministerul Educației și Cercetăriihttp://viaf.org/viaf/130527624 Close Section Preferred Forms
UNSPECIFIEDMinESUNSPECIFIED
UNSPECIFIEDFederal Agency for Scientific Organizationshttp://dx.doi.org/10.13039/501100013176
UNSPECIFIED[MINECO] Ministerio de Economía y Competitividadhttp://dx.doi.org/10.13039/501100003329
UNSPECIFIED[SNSF] Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschunghttp://dx.doi.org/10.13039/501100001711
UNSPECIFIEDSchweiz Staatssekretariat für Bildung, Forschung und Innovationhttp://viaf.org/viaf/588145858056223021641
UNSPECIFIEDNational Academy of Sciences of Ukrainehttp://dx.doi.org/10.13039/501100004742
UNSPECIFIED[STFC] Science and Technology Facilities Councilhttp://dx.doi.org/10.13039/501100000271
UNSPECIFIEDNational Science Foundationhttp://dx.doi.org/10.13039/501100008982
UNSPECIFIEDEPLANETUNSPECIFIED
UNSPECIFIEDMarie Skłodowska-Curie ActionsUNSPECIFIED
UNSPECIFIEDEuropean Research Councilhttp://dx.doi.org/10.13039/501100000781
UNSPECIFIEDHaute-Savoie (France). Conseil généralhttp://viaf.org/viaf/141489615
UNSPECIFIEDLabex ENIGMASSUNSPECIFIED
UNSPECIFIEDOrigines, Constituants et EVolution de l'UniversUNSPECIFIED
UNSPECIFIEDConseil régional d'Auvergnehttp://viaf.org/viaf/155554381
UNSPECIFIED[RFBR]Russian Foundation for Basic Researchhttp://dx.doi.org/10.13039/501100002261
UNSPECIFIEDGalicia (Spain : Region). Xuntahttp://viaf.org/viaf/157837173
UNSPECIFIEDGeneralitat de Catalunyahttp://dx.doi.org/10.13039/501100002809
UNSPECIFIED[RS] Royal Societyhttp://dx.doi.org/10.13039/501100000288
UNSPECIFIEDRoyal Commission for the Exhibition of 1851http://dx.doi.org/10.13039/501100000700

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