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https://hdl.handle.net/2445/133213| Title: | Measurement of the CP-Violating Phase ϕs in ¯B0s→D+sD−s Decays |
| Author: | Badalov, Alexey Calvo Gómez, Míriam Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Vilasis-Cardona, Xavier LHCb Collaboration |
| Keywords: | Física de partícules Experiments Particle physics Experiments |
| Issue Date: | 20-Nov-2014 |
| Publisher: | American Physical Society |
| Abstract: | We present a measurement of the C P -violating weak mixing phase ϕ s using the decay ¯ B 0 s → D + s D − s in a data sample corresponding to 3.0 fb − 1 of integrated luminosity collected with the LHCb detector in p p collisions at center-of-mass energies of 7 and 8 TeV. An analysis of the time evolution of the system, which does not use the constraint | λ | = 1 to allow for the presence of C P violation in decay, yields ϕ s = 0.02 ± 0.17 ( stat ) ± 0.02 ( syst ) rad , | λ | = 0.91 + 0.18 − 0.15 ( stat ) ± 0.02 ( syst ) . This result is consistent with the standard model expectation. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.113.211801 |
| It is part of: | Physical Review Letters, 2014, vol. 113, num. 21, p. 211801 |
| URI: | https://hdl.handle.net/2445/133213 |
| Related resource: | https://doi.org/10.1103/PhysRevLett.113.211801 |
| 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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