Angular analysis and branching fraction measurement of the decay B0→K⁎0μ+μ−
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Chatrchyan, S.; Brochero Cifuentes, Javier Andrés
; Cabrillo Bartolomé, José Iban
; Calderón Tazón, Alicia
; Chuang, S. H.; Duarte Campderros, Jorge
; Fernández García, Marcos
; Gómez Gramuglio, Gervasio
; González Sánchez, Francisco Javier
; Graziano, Alberto; Jordá Lope, Clara; López Virto, María Amparo; Marco de Lucas, Jesús
; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, Francisco
; Muñoz Sánchez, Francisca Javiela; Rodrigo Anoro, Teresa
; Rodríguez Marrero, Ana Yaiza; [et al.]Fecha
2013-11-25Derechos
Atribución 3.0 España.© 2013 CERN. Published by Elsevier B.V.
Publicado en
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2013, 727(1-3), 77-100
Editorial
Elsevier
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Palabras clave
CMS
Physics
Resumen/Abstract
The angular distributions and the differential branching fraction of the decay B0→K∗(892)0μ+μ− are studied using a data sample corresponding to an integrated luminosity of 5.2fb−1 collected with the CMS detector at the LHC in pp collisions at s=7TeV. From more than 400 signal decays, the forward–backward asymmetry of the muons, the K⁎(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the square of the dimuon invariant mass. The measurements are in good agreement with standard model predictions.
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