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https://hdl.handle.net/2445/185591
Title: | Measurement of CP violation and constraints on the CKM angle gamma in B-+/- -> DK +/- with D -> K-s(0)pi(+)pi(-) decays |
Author: | Camboni, Alessandro Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, 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: | Nov-2014 |
Publisher: | Elsevier B.V. |
Abstract: | A model-dependent amplitude analysis of B± → DK± with D → K0 S π +π − decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 1 fb−1 , recorded by LHCb at a centre-of-mass energy of 7 TeV in 2011. Values of the CP violation observables x± and y±, which are sensitive to the CKM angle γ, are measured to be x− = +0.027 ± 0.044 +0.010 −0.008 ± 0.001, y− = +0.013 ± 0.048 +0.009 −0.007 ± 0.003, x+ = −0.084 ± 0.045 ± 0.009 ± 0.005, y+ = −0.032 ± 0.048 +0.010 −0.009 ± 0.008, where the first uncertainty is statistical, the second systematic and the third arises from the uncertainty of the D → K0 S π +π − amplitude model. The value of γ is determined to be (84+49 −42) ◦ , including all sources of uncertainty. Neutral D meson mixing is found to have negligible effect. |
Note: | Reproducció del document publicat a: https://doi.org/10.1016/j.nuclphysb.2014.09.015 |
It is part of: | Nuclear Physics B, 2014, vol. 888, p. 169-193 |
URI: | https://hdl.handle.net/2445/185591 |
Related resource: | https://doi.org/10.1016/j.nuclphysb.2014.09.015 |
ISSN: | 0550-3213 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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