Garrido Beltrán, LluísGraciani Díaz, RicardoGraugés Pous, EugeniMarin Benito, CarlaPicatoste Olloqui, EduardoRives Molina, Vicente JoséRuiz, Hugo (Ruiz Pérez)LHCb Collaboration2022-05-162022-05-162014-111126-6708https://hdl.handle.net/2445/185615We report on measurements of the time-dependent CP violating observables in B0 s → D∓ s K± decays using a dataset corresponding to 1.0 fb−1 of pp collisions recorded with the LHCb detector. We find the CP violating observables Cf = 0.53±0.25±0.04, A∆Γ f = 0.37 ± 0.42 ± 0.20, A∆Γ f = 0.20 ± 0.41 ± 0.20, Sf = −1.09 ± 0.33 ± 0.08, Sf = −0.36 ± 0.34 ± 0.08, where the uncertainties are statistical and systematic, respectively. Using these observables together with a recent measurement of the B0 s mixing phase −2βs leads to the first extraction of the CKM angle γ from B0 s → D∓ s K± decays, finding γ = (115+28 −43) ◦ modulo 180◦ at 68% CL, where the error contains both statistical and systematic uncertainties.31 p.application/pdfengcc-by (c) Garrido Beltrán, Lluis et al., 2014https://creativecommons.org/licenses/by/4.0/HadronsGran Col·lisionador d'HadronsFísica de partículesExperimentsHadronsLarge Hadron Collider (France and Switzerland)Particle physicsExperimentsinfo:eu-repo/semantics/article6457232022-05-16info:eu-repo/semantics/openAccess