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Angular analysis and branching fraction measurement of the decay $B^0 \to K^{*0} \mu^+\mu^-$

2013-11-25Artigo científico Acesso aberto
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dc.contributor.authorCMS collaboration (2217 authors)
dc.contributor.authorHollar, Jonathan
dc.contributor.authorNayak, Aruna
dc.contributor.authorCalpas, Betty
dc.contributor.authorAlmeida, Nuno
dc.contributor.authorBargassa, Pedrame
dc.contributor.authorBeirão Da Cruz E Silva, Cristóvão
dc.contributor.authorFaccioli, Pietro
dc.contributor.authorFerreira Parracho, Pedro Guilherme
dc.contributor.authorGallinaro, Michele
dc.contributor.authorNguyen, Federico
dc.contributor.authorRodrigues Antunes, Joao
dc.contributor.authorSeixas, Joao
dc.contributor.authorVarela, Joao
dc.contributor.authorVischia, Pietro
dc.contributor.authorLloret Iglesias, Lara
dc.contributor.authorDavid Tinoco Mendes, Andre
dc.contributor.authorMusella, Pasquale
dc.contributor.authorSilva, Pedro
dc.contributor.authorPela, Joao
dc.contributor.authorLeonardo, Nuno
dc.date.accessioned2019-02-03T23:21:38Z
dc.date.available2019-02-03T23:21:38Z
dc.date.issued2013-11-25
dc.date.updated2019-02-03T23:21:38Z
dc.description.abstractThe angular distributions and the differential branching fraction of the decay $B^0 \to K^*(892)^0 \mu^+ \mu^-$ are studied using a data sample corresponding to an integrated luminosity of 5.2 inverse femtobarns collected with the CMS detector at the LHC in pp collisions at $\sqrt{s}$ = 7 TeV. 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.
dc.description.versionPeer Reviewed
dc.identifierPhys.Lett. B727 (2013) 77-100; DOI 10.1016/j.physletb.2013.10.017
dc.identifier.urihttp://dx.doi.org/10.1016/j.physletb.2013.10.017
dc.identifier.urihttp://hdl.handle.net/10400.26/26467
dc.language.isoeng
dc.titleAngular analysis and branching fraction measurement of the decay $B^0 \to K^{*0} \mu^+\mu^-$
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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LIP - AP - Física de Partículas e Astropartículas