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http://hdl.handle.net/2445/185661| Title: | Measurement of the lifetime of the Bc+ meson using the Bc+→J/ψπ+ decay mode |
| Author: | LHCb Collaboration Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, Vicente José Ruiz, Hugo |
| Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
| Issue Date: | 6-Mar-2015 |
| Publisher: | Elsevier B.V. |
| Abstract: | The difference in total widths between the B+ c and B+ mesons is measured using a data sample corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment in 7 and 8 TeV centre-of-mass energy proton-proton collisions at the LHC. Through the study of the time evolution of B+ c → J/ψπ+ and B+ → J/ψK+ decays, the width difference is measured to be ≡ B+ c − B+ = 4.46 ± 0.14 ± 0.07 mm−1 c, where the first uncertainty is statistical and the second systematic. The known lifetime of the B+ meson is used to convert this to a precise measurement of the B+ c lifetime, τB+ c = 513.4 ± 11.0 ± 5.7 fs, where the first uncertainty is statistical and the second is systematic. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1016/j.physletb.2015.01.010 |
| It is part of: | Physics Letters B, 2015, vol. 742, p. 1-9 |
| URI: | http://hdl.handle.net/2445/185661 |
| Related resource: | https://doi.org/10.1016/j.physletb.2015.01.010 |
| ISSN: | 0370-2693 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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