文摘
Measurements of CP observables in thmlsrc">text 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±thContainer hidden">thCode">th altimg="si1.gif" overflow="scroll">B±tretchy="false">→DK±th> and thmlsrc">text 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±thContainer hidden">thCode">th altimg="si2.gif" overflow="scroll">B±tretchy="false">→Dπ±th> decays are presented where the D meson is reconstructed in the final states thmlsrc">text 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∓thContainer hidden">thCode">th altimg="si3.gif" overflow="scroll">K±π∓th>, thmlsrc">text 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∓thContainer hidden">thCode">th altimg="si4.gif" overflow="scroll">π±K∓th>, thmlsrc">text 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−thContainer hidden">thCode">th altimg="si5.gif" overflow="scroll">K+K−th>, thmlsrc">text 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−thContainer hidden">thCode">th altimg="si224.gif" overflow="scroll">π+π−th>, thmlsrc">text 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−thContainer hidden">thCode">th altimg="si7.gif" overflow="scroll">K±π∓π+π−th>, thmlsrc">text 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−thContainer hidden">thCode">th altimg="si8.gif" overflow="scroll">π±K∓π+π−th> and thmlsrc">text 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−thContainer hidden">thCode">th altimg="si9.gif" overflow="scroll">π+π−π+π−th>. 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 thmlsrc">text 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−1thContainer hidden">thCode">th altimg="si10.gif" overflow="scroll">3.0text> fbtext>−1th>. 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.