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http://hdl.handle.net/2445/185618| Title: | Measurement of the charge asymmetry in B-+/- -> phi K +/- and search for B-+/- -> phi pi(+/-) decays |
| Author: | Camboni, Alessandro Comerma-Montells, A. Garrido Beltrán, Lluís Graciani Diaz, Ricardo Graugés Pous, Eugeni Picatoste Olloqui, Eduardo Potterat, Cédric Rives Molina, V. Ruiz, Hugo LHCb Collaboration |
| Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
| Issue Date: | Jan-2014 |
| Publisher: | Elsevier B.V. |
| Abstract: | The CP-violating charge asymmetry in B± → φK± decays is measured in a sample of pp collisions at 7 TeV centre-of-mass energy, corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment. The result is ACP (B± → φK±) = 0.022 ± 0.021 ± 0.009, where the first uncertainty is statistical and the second systematic. In addition, a search for the B± → φπ± decay mode is performed, using the B± → φK± decay rate for normalization. An upper limit on the branching fraction B(B± → φπ±) < 1.5 × 10−7 is set at 90% confidence level. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1016/j.physletb.2013.11.036 |
| It is part of: | Physics Letters B, 2014, vol. 728, p. 85-94 |
| URI: | http://hdl.handle.net/2445/185618 |
| Related resource: | https://doi.org/10.1016/j.physletb.2013.11.036 |
| ISSN: | 0370-2693 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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