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Title: | Observation of B-s(0) -> (D)over-bar(0)K(S)(0) and evidence for B-s(0) -> (D)over-bar*K-0(S)0 decays |
Author: | Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, Vicente José Badalov, Alexey LHCb Collaboration |
Keywords: | Violació CP (Física nuclear) Simetria (Física) Partícules (Física nuclear) CP violation (Nuclear physics) Symmetry (Physics) Particles (Nuclear physics) |
Issue Date: | 21-Apr-2016 |
Publisher: | American Physical Society |
Abstract: | The first observation of the B0s→¯D0K0S decay mode and evidence for the B0s→¯D*0K0S decay mode are reported. The data sample corresponds to an integrated luminosity of 3.0 fb−1 collected in pp collisions by LHCb at center-of-mass energies of 7 and 8 TeV. The branching fractions are measured to be B(B0s→¯D0¯K0)=[4.3±0.5(stat)±0.3(syst)±0.3(frag)±0.6(norm)]×10−4,B(B0s→¯D*0¯K0)=[2.8±1.0(stat)±0.3(syst)±0.2(frag)±0.4(norm)]×10−4,where the uncertainties are due to contributions coming from statistical precision, systematic effects, and the precision of two external inputs, the ratio fs/fd and the branching fraction of B0→¯D0K0S, which is used as a calibration channel. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.116.161802 |
It is part of: | Physical Review Letters, 2016, vol. 116, num. 161802 |
URI: | http://hdl.handle.net/2445/113721 |
Related resource: | https://doi.org/10.1103/PhysRevLett.116.161802 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
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