文摘
Measurements of CP observables in i1" class="mathmlsrc">i1.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=845a95f7a1e143fdd4fb67abf499c1fe" title="Click to view the MathML source">B±→DK± and B±→Dπ± decays are presented where the D meson is reconstructed in the final states K±π∓, 1748fd787a4b" title="Click to view the MathML source">π±K∓, K+K−, π+π−, K±π∓π+π−, π±K∓π+π− and 177385e081290dd82ce759c77d6cb" title="Click to view the MathML source">π+π−π+π−. This analysis uses a sample of charged B mesons from pp collisions collected by the LHCb experiment in 2011 and 2012, corresponding to an integrated luminosity of i10" class="mathmlsrc">i10.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=efcd9d07d005b5393628b872bcd26591" title="Click to view the MathML source">3.0 fb−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 D decay mode is the first of its kind.