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http://hdl.handle.net/2445/185579
Title: | Precision measurement of the B0s-overlineB{}^0_s oscillation frequency with the decay B0s → D-sπ+ |
Author: | LHCb Collaboration Camboni, Alessandro Comerma-Montells, A. Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni Lopez Asamar, E. Perez-Calero Yzquierdo, A. Picatoste Olloqui, E. Potterat, C. Rives Molina, V. Ruiz, Hugo Vazquez Gomez, R. Abellan Beteta, Carlos Calvo Gomez, M. Oyanguren, A. Ruiz Valls, P. Vilasis-Cardona, X. |
Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
Issue Date: | May-2013 |
Publisher: | Institute of Physics Pub. |
Abstract: | A key ingredient to searches for physics beyond the Standard Model in B0s mixing phenomena is the measurement of the B0s- ${{\overline{ {\mathrm {B}}}{}}^0_{\mathrm { s}}}$ oscillation frequency, which is equivalent to the mass difference Δms of the B0s mass eigenstates. Using the world's largest B0s meson sample accumulated in a dataset, corresponding to an integrated luminosity of 1.0 fb−1, collected by the LHCb experiment at the CERN LHC in 2011, a measurement of Δms is presented. A total of about 34 000 B0s → D−sπ+ signal decays are reconstructed, with an average decay time resolution of 44 fs. The oscillation frequency is measured to be Δms = 17.768 ± 0.023 (stat) ± 0.006 (syst) ps−1, which is the most precise measurement to date. |
Note: | Reproducció del document publicat a: https://doi.org/10.1088/1367-2630/15/5/053021 |
It is part of: | New Journal of Physics, 2013, vol. 15, num. 5, p. 1-16 |
URI: | http://hdl.handle.net/2445/185579 |
Related resource: | https://doi.org/10.1088/1367-2630/15/5/053021 |
ISSN: | 1367-2630 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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