Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/162204
Title: | Measurement of CP-violating and mixing-induced observables in Bs0 →φγ decays |
Author: | Alfonso Albero, Alejandro Calvo Gómez, Míriam Camboni, Alessandro Coquereau, Samuel Garrido Beltrán, Lluís Gascón Fora, David Gironella Gironell, Pere Graciani Díaz, Ricardo Graugés Pous, Eugeni Vilasis-Cardona, Xavier LHCb Collaboration Marin Benito, Carla |
Keywords: | Física de partícules Violació CP (Física nuclear) Experiments Particle physics CP violation (Nuclear physics) Experiments |
Issue Date: | 23-Aug-2019 |
Publisher: | American Physical Society |
Abstract: | A time-dependent analysis of the Bs0→φγ decay rate is performed to determine the CP -violating observables Sφγ and Cφγ and the mixing-induced observable AφγΔ. The measurement is based on a sample of pp collision data recorded with the LHCb detector, corresponding to an integrated luminosity of 3 fb-1 at center-of-mass energies of 7 and 8 TeV. The measured values are Sφγ=0.43±0.30±0.11, Cφγ=0.11±0.29±0.11, and AφγΔ=-0.67-0.41+0.37±0.17, where the first uncertainty is statistical and the second systematic. This is the first measurement of the observables S and C in radiative Bs0 decays. The results are consistent with the standard model predictions |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.123.081802 |
It is part of: | Physical Review Letters, 2019, vol. 123, num. 8, p. 081802-081802 |
URI: | http://hdl.handle.net/2445/162204 |
Related resource: | https://doi.org/10.1103/PhysRevLett.123.081802 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
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