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http://hdl.handle.net/2445/196207| Title: | Measurement of the effective Bs0→J/ψKS0 lifetime |
| Author: | LHCb Collaboration 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 Picatoste Olloqui, Eduardo Potterat, Cédric Rives Molina, Vicente Ruiz, Hugo (Ruiz Pérez) Ruiz Valls, Pablo Vázquez Gómez, Ricard Vilasis-Cardona, Xavier |
| Keywords: | Física de partícules Experiments Gran Col·lisionador d'Hadrons Particle physics Experiments Large Hadron Collider (France and Switzerland) |
| Issue Date: | Aug-2013 |
| Publisher: | Elsevier B.V. |
| Abstract: | This paper reports the first measurement of the effective B0 s → J /ψK0 S lifetime and an updated mea- surement of its time-integrated branching fraction. Both measurements are performed with a data sample, corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions, recorded by the LHCb experiment in 2011 at a centre-of-mass energy of 7 TeV. The results are: τ eff J /ψK0 S = 1.75 ± 0.12 (stat) ± 0.07 (syst) ps and B(B0 s → J /ψK0 S ) = (1.97 ± 0.23) × 10−5. For the latter measurement, the uncertainty includes both statistical and systematic sources. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1016/j.nuclphysb.2013.04.021 |
| It is part of: | Nuclear Physics B, 2013, vol. 873, num. 2, p. 275-292 |
| URI: | http://hdl.handle.net/2445/196207 |
| Related resource: | https://doi.org/10.1016/j.nuclphysb.2013.04.021 |
| ISSN: | 0550-3213 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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