LHCb CollaborationAdeva Andany, BernardoBorsato, MartinoDosil Suárez, ÁlvaroFernández Albor, Víctor ManuelGallas Torreira, Abraham AntonioGarcía Pardiñas, JuliánHernando Morata, José ÁngelLemos Cid, EdgarLucio Martínez, MiriamMartínez Santos, DiegoPlo Casasus, MáximoPrisciandaro, JessicaRamos Pernas, MiguelRomero Vidal, AntonioSaborido Silva, Juan JoséSanmartín Sedes, BraisSantamarina Ríos, CibránVázquez Regueiro, PabloVázquez Sierra, CarlosVieites Díaz, María2020-05-122020-05-122016Aaij, R., Beteta, C. A., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., ... & Alkhazov, G. (2016). Measurement of CP observables in B±→ DK±and B±→ Dπ±with two-and four-body D decays. Physics Letters B, 760, 117-1310370-2693http://hdl.handle.net/10347/22233Measurements of CPobservables in B±→DK±and B±→Dπ±decays are presented where the Dmeson is reconstructed in the final states K±π∓, π±K∓, K+K−, π+π−, K±π∓π+π−, π±K∓π+π−and π+π−π+π−. This analysis uses a sample of charged Bmesons from ppcollisions collected by the LHCb experiment in 2011 and 2012, corresponding to an integrated luminosity of 3.0fb−1. Various CP-violating effects are reported and together these measurements provide important input for the determination of the unitarity triangle angle γ. The analysis of the four-pion Ddecay mode is the first of its kind.eng©2016 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.http://creativecommons.org/licenses/by/4.0/journal article10.1016/j.physletb.2016.06.0221873-2445open access