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dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorCERN
dc.contributor.authorCalvo Gómez, Míriam
dc.contributor.authorVilasís Cardona, Xavier
dc.contributor.authorLHCb Collaboration - CERN
dc.date.accessioned2020-11-20T06:09:06Z
dc.date.accessioned2023-10-02T06:27:01Z
dc.date.available2020-11-20T06:09:06Z
dc.date.available2023-10-02T06:27:01Z
dc.date.created2015
dc.date.issued2015-02-04
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3158
dc.description.abstractUsing the latest LHCb measurements of time-dependent CP violation in the B-s(0) -> K+K- decay, a U-spin relation between the decay amplitudes of B-s(0) -> K+K- and B-0 -> p(+)p(-) decay processes allows constraints to be placed on the angle gamma of the unitarity triangle and on the B-s(0) mixing phase -2 beta(s). Results from an extended approach, which uses additional inputs on B-0 -> pi(0)pi(0) and B+ -> pi(+)pi(0) decays from other experiments and exploits isospin symmetry, are also presented. The dependence of the results on the maximum allowed amount of U-spin breaking is studied. At 68% probability, the value gamma =( 63.5(-6.7)(+7.2))degrees modulo 180 degrees is determined. In an alternative analysis, the value -2 beta(s)= - 0.12(-0.16)(+ 0.14) rad is found. In both measurements, the uncertainties due to U-spin breaking effects up to 50% are included.eng
dc.format.extent11 p.cat
dc.language.isoengcat
dc.publisherElseviercat
dc.relation.ispartofPhysics Letters B , 2015, Vol. 741 (Febrer)cat
dc.rights© L'autor/a
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceRECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.otherGran col·lisionador d'hadrons (França i Suïssa)cat
dc.subject.otherMesonscat
dc.subject.otherPartícules (Física nuclear)cat
dc.titleDetermination of γ and −2βs from charmless two-body decays of beauty mesonscat
dc.typeinfo:eu-repo/semantics/articlecat
dc.typeinfo:eu-repo/semantics/publishedVersioncat
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapcat
dc.subject.udc53
dc.identifier.doihttps://doi.org/10.1016/j.physletb.2014.12.015cat


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