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Título

Differential branching fraction and angular analysis of the decay B-0 -> K*(0)mu(+)mu(-)

AutorLHCb Collaboration; Aaij, R.; Oyanguren, Arantza ; Ruiz Valls, Pablo
Palabras claveRare decay
Hadron-Hadron Scattering
B physics
Flavour Changing Neutral Currents
Flavor physics
Fecha de publicación1-ago-2013
EditorSpringer
CitaciónJournal of High Energy Physics 08 (8): 131 - 31 (2013)
ResumenThe angular distribution and differential branching fraction of the decay B-0 -> K*(0)mu(+)mu(-) are studied using a data sample, collected by the LHCb experiment in pp collisions at root s = 7 TeV, corresponding to an integrated luminosity of 1.0 fb(-1). Several angular observables are measured in bins of the dimuon invariant mass squared, q(2). A first measurement of the zero-crossing point of the forward-backward asymmetry of the dimuon system is also presented. The zero-crossing point is measured to be q(0)(2) = 4.9 +/- 0.9 GeV2/c(4), where the uncertainty is the sum of statistical and systematic uncertainties. The results are consistent with the Standard Model predictions.
Versión del editorhttp://dx.doi.org/10.1007/JHEP08(2013)131
URIhttp://hdl.handle.net/10261/125993
DOI10.1007/JHEP08(2013)131
ISSN1029-8479
E-ISSN1029-8479
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