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Abstract: Angular distributions of the decay B0?K?0?+?? are studied using a sample of proton?proton collisions at s=8TeV collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 20.5fb?1. An angular analysis is performed to determine the P1 and P5 ? parameters, where the P5 ? parameter is of particular interest because of recent measurements that indicate a potential discrepancy with the standard model predictions. Based on a sample of 1397 signal events, the P1 and P5 ? parameters are determined as a function of the dimuon invariant mass squared. The measurements are in agreement with predictions based on the standard model.
Fuente: Physics Letters B 781 (2018) 517-541
Publisher: Elsevier
Publication date: 10/06/2018
No. of pages: 25
Publication type: Article
DOI: 10.1016/j.physletb.2018.04.030
ISSN: 0370-2693,1873-2445
Publication Url: https://doi.org/10.1016/j.physletb.2018.04.030
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SIRUNYAN, A. M.
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
BARBARA CHAZIN QUERO
ESTEBAN CURRAS RIVERA
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
JUAN GARCIA FERRERO
GERVASIO GOMEZ GRAMUGLIO
MARIA AMPARO LOPEZ VIRTO
JESUS MARCO DE LUCAS
CELSO MARTINEZ RIVERO
PABLO MARTINEZ RUIZ DEL ARBOL
FRANCISCO MATORRAS WEINIG
JONATAN PIEDRA GOMEZ
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
NICOLO TREVISANI
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
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