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http://hdl.handle.net/2445/56443| Title: | Differential branching fraction and angular analysis of the decay B 0 → K ∗0 μ + μ - |
| Author: | Abellan Beteta, Carlos Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Oyanguren Campos, Arantza de Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Potterat, Cédric Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Ruiz Valls, Pablo Vázquez Gómez, Ricard Vilasis-Cardona, Xavier LHCb Collaboration |
| Keywords: | Detectors de radiació Cromodinàmica quàntica Hadrons Nuclear counters Quantum chromodynamics Hadrons |
| Issue Date: | Aug-2013 |
| Publisher: | Springer Verlag |
| Abstract: | The angular distribution and differential branching fraction of the decay B 0→ K ∗0 μ + μ − are studied using a data sample, collected by the LHCb experiment in pp collisions at 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 q20=4.9±0.9GeV2/c4 , where the uncertainty is the sum of statistical and systematic uncertainties. The results are consistent with the Standard Model predictions. |
| Note: | Reproducció del document publicat a: http://dx.doi.org/10.1007/JHEP08(2013)131 |
| It is part of: | Journal of High Energy Physics, 2013, vol. 8, num. 131, p. 1-31 |
| URI: | http://hdl.handle.net/2445/56443 |
| Related resource: | http://dx.doi.org/10.1007/JHEP08(2013)131 |
| ISSN: | 1126-6708 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Publicacions de projectes de recerca finançats per la UE |
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