Measurement of the ratio of B+c branching fractions to J/ψπ+ and J/ψμ+νμ final states

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Title:	Measurement of the ratio of B+c branching fractions to J/ψπ+ and J/ψμ+νμ final states
Author:	Badalov, Alexey; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN
Other authors:	Universitat Ramon Llull. La Salle; CERN
Abstract:	The first measurement that relates semileptonic and hadronic decay rates of the B+c meson is performed using proton-proton collision data corresponding to 1.0 fb−1 of integrated luminosity collected with the LHCb detector. The measured value of the ratio of branching fractions, B(B+c→J/ψπ+)/B(B+c→J/ψμ+νμ)=0.0469±0.0028(stat)±0.0046(syst), is at the lower end of available theoretical predictions.
Publication date:	2014-08-27
Subject (UDC):	539 - Constitució física de la matèria
Subject(s):	Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) Col·lisions (Física nuclear) Protons Mesons
Rights:	L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by/4.0/ © CERN
Pages:	11 p.
Document type:	Article Article - Published version
DOI:	https://doi.org/10.1103/PhysRevD.90.032009
Published by:	American Physical Society
Publish at:	Physical Review D, 2014, Vol. 90 , No.3 (Agost)
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