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Title: | Observation of $B^0_s \to K^{*\pm}K^\mp$ and evidence for $B^0_s \to K^{*-}\pi^+$ decays |
Author: | Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, E. Rives, 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: | 2-Dec-2014 |
Publisher: | Institute of Physics Pub. |
Abstract: | Measurements of the branching fractions of B0 s → K∗±K∓ and B0 s → K∗±π ∓ decays are performed using a data sample corresponding to 1.0 fb−1 of protonproton collision data collected with the LHCb detector at a centre-of-mass energy of 7 TeV, where the K∗± mesons are reconstructed in the K0 S π ± final state. The first observation of the B0 s → K∗±K∓ decay and the first evidence for the B0 s → K∗−π + decay are reported with branching fractions B B 0 s → K∗±K∓ = (12.7 ± 1.9 ± 1.9) × 10−6 , B B 0 s → K∗−π + = (3.3 ± 1.1 ± 0.5) × 10−6 , where the first uncertainties are statistical and the second are systematic. In addition, an upper limit of B B0→ K∗±K∓ < 0.4 (0.5)×10−6 is set at 90 % (95 %) confidence lev |
Note: | Reproducció del document publicat a: https://doi.org/10.1088/1367-2630/16/12/123001 |
It is part of: | New Journal of Physics, 2014, vol. 16, num. 123001, p. 1-24 |
URI: | http://hdl.handle.net/2445/185691 |
Related resource: | https://doi.org/10.1088/1367-2630/16/12/123001 |
ISSN: | 1367-2630 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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