文摘
Measurements of CP observables in rc">rmulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302751&_mathId=si1.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=845a95f7a1e143fdd4fb67abf499c1fe" title="Click to view the MathML source">B±→DK±r hidden"> and rc">rmulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302751&_mathId=si2.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=52046c0fa11b256802884b1ce14bf629" title="Click to view the MathML source">B±→Dπ±r hidden"> decays are presented where the D meson is reconstructed in the final states rc">rmulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302751&_mathId=si3.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=f69ab1e21983c2dece8fefdd86e8053a" title="Click to view the MathML source">K±π∓r hidden">, rc">rmulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302751&_mathId=si4.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=27eb6c0a135607307b421748fd787a4b" title="Click to view the MathML source">π±K∓r hidden">, rc">rmulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302751&_mathId=si5.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=7e975dfbc75b254e4a89f52cc333d126" title="Click to view the MathML source">K+K−r hidden">, rc">rmulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302751&_mathId=si224.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=6de0c4bcea63b4411c02c1b74ce7c2d3" title="Click to view the MathML source">π+π−r hidden">, i7" class="mathmlsrc">rmulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302751&_mathId=si7.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=39acb2044202955c9165521f26e50afe" title="Click to view the MathML source">K±π∓π+π−r hidden">, rc">rmulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302751&_mathId=si8.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=0800b4757f3ae6857e60f78516d8e72b" title="Click to view the MathML source">π±K∓π+π−r hidden"> and rc">rmulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302751&_mathId=si9.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=5c2177385e081290dd82ce759c77d6cb" title="Click to view the MathML source">π+π−π+π−r hidden">. 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 rc">rmulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0370269316302751&_mathId=si10.gif&_user=111111111&_pii=S0370269316302751&_rdoc=1&_issn=03702693&md5=efcd9d07d005b5393628b872bcd26591" title="Click to view the MathML source">3.0 fb−1r hidden">. 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.