First Observation of CP Violation in B over ¯ ^ 0 →D_ CP ^ (*) h^ 0 Decays by a Combined Time-Dependent Analysis of BABAR and Belle Data.

Author	: A Abdesselam I Adachi A Adametz T Adye H Ahmed H Aihara S Akar MS Alam J Albert Al Said R Andreassen C Angelini F Anulli K Arinstein N Arnaud DM Asner D Aston Aulchenko V T Aushev R Ayad Babu V I Badhrees S Bahinipati AM Bakich HR Band S Banerjee E Barberio DJ Bard RJ Barlow G Batignani A Beaulieu M Bellis E Ben-Haim D Bernard FU Bernlochner S Bettarini D Bettoni AJ Bevan Bhardwaj V B Bhuyan F Bianchi M Biasini J Biswal VE Blinov PC Bloom A Bobrov M Bomben A Bondar GR Bonneaud G Bonvicini A Bozek C Bozzi M Bracko H Briand TE Browder DN Brown DN Brown C Bünger PR Burchat AR Buzykaev R Calabrese A Calcaterra G Calderini M Carpinelli C Cartaro G Casarosa R Cenci D Červenkov P Chang DS Chao J Chauveau R Cheaib Chekelian V A Chen C Chen CH Cheng BG Cheon K Chilikin R Chistov K Cho Chobanova V HH Choi SK Choi M Chrzaszcz G Cibinetto D Cinabro J Cochran JP Coleman R Contri MR Convery G Cowan R Cowan L Cremaldi J Dalseno S Dasu M Davier CL Davis F De Mori G De Nardo AG Denig D Derkach R de Sangro B Dey F Di Lodovico J Dingfelder S Dittrich Z Dolezal J Dorfan Z Drasal A Drutskoy VP Druzhinin GP Dubois-Felsmann W Dunwoodie D Dutta M Ebert B Echenard S Eidelman G Eigen AM Eisner S Emery JA Ernst R Faccini H Farhat JE Fast M Feindt T Ferber F Ferrarotto F Ferroni RC Field A Filippi G Finocchiaro E Fioravanti KT Flood WT Ford F Forti Franco Sevilla M Fritsch Fry JR BG Fulsom E Gabathuler N Gabyshev D Gamba A Garmash JW Gary I Garzia M Gaspero Gaur V A Gaz TJ Gershon D Getzkow R Gillard Li Gioi MA Giorgi R Glattauer R Godang YM Goh P Goldenzweig B Golob VB Golubev R Gorodeisky W Gradl MT Graham E Grauges K Griessinger AV Gritsan G Grosdidier O Grünberg N Guttman J Haba A Hafner B Hamilton T Hara PF Harrison C Hast K Hayasaka H Hayashii C Hearty XH He M Hess DG Hitlin TM Hong K Honscheid WS Hou YB Hsiung Z Huard DE Hutchcroft T Iijima G Inguglia WR Innes A Ishikawa R Itoh Y Iwasaki JM Izen I Jaegle A Jawahery CP Jessop D Joffe KK Joo T Julius KH Kang R Kass T Kawasaki LT Kerth A Khan C Kiesling DY Kim JB Kim JH Kim KT Kim P Kim SH Kim YJ Kim GJ King K Kinoshita BR Ko H Koch P Kodys YG Kolomensky S Korpar D Kovalskyi R Kowalewski EA Kravchenko P Krizan P Krokovny T Kuhr R Kumar A Kuzmin YJ Kwon HM Lacker GD Lafferty L Lanceri DJ Lange AJ Lankford TE Latham T Leddig F Le Diberder DH Lee IS Lee MJ Lee JP Lees DW Leith P Leruste MJ Lewczuk P Lewis J Libby WS Lockman O Long Lopes Pegna JM LoSecco XC Lou T Lueck S Luitz P Lukin E Luppi A Lusiani Luth V AM Lutz G Lynch DB MacFarlane B Malaescu U Mallik E Manoni G Marchiori M Margoni S Martellotti F Martinez-Vidal M Masuda TS Mattison D Matvienko JA McKenna BT Meadows K Miyabayashi TS Miyashita H Miyata R Mizuk GB Mohanty A Moll MR Monge HK Moon M Morandin DR Muller R Mussa E Nakano H Nakazawa M Nakao T Nanut M Nayak H Neal N Neri NK Nisar S Nishida IM Nugent B Oberhof J Ocariz S Ogawa S Okuno EO Olaiya J Olsen P Ongmongkolkul G Onorato AP Onuchin Y Onuki W Ostrowicz A Oyanguren G Pakhlova P Pakhlov A Palano B Pal F Palombo Y Pan Panduro Vazquez E Paoloni CW Park H Park S Passaggio PM Patel C Patrignani P Patteri DJ Payne TK Pedlar DR Peimer IM Peruzzi L Pesántez R Pestotnik M Petrič M Piccolo L Piemontese LE Piilonen A Pilloni G Piredda S Playfer Poireau V FC Porter M Posocco Prasad V S Prell R Prepost EM Puccio T Pulliam MV Purohit BG Pushpawela M Rama A Randle-Conde BN Ratcliff G Raven E Ribežl JD Richman JL Ritchie G Rizzo DA Roberts SH Robertson M Röhrken JM Roney A Roodman A Rossi A Rostomyan M Rotondo P Roudeau R Sacco Y Sakai S Sandilya L Santelj Santoro V T Sanuki Y Sato Savinov V RH Schindler O Schneider G Schnell T Schroeder KR Schubert BA Schumm C Schwanda AJ Schwartz RF Schwitters C Sciacca A Seiden SJ Sekula K Senyo O Seon SI Serednyakov ME Sevior M Shapkin Shebalin V CP Shen TA Shibata JG Shiu M Simard G Simi F Simon F Simonetto YI Skovpen AJ Smith JG Smith A Snyder RY So RJ Sobie A Soffer YS Sohn MD Sokoloff A Sokolov EP Solodov E Solovieva B Spaan SM Spanier M Staric A Stocchi R Stroili B Stugu D Su MK Sullivan M Sumihama K Sumisawa T Sumiyoshi DJ Summers L Sun U Tamponi P Taras N Tasneem Y Teramoto Tisserand V KY Todyshev WH Toki C Touramanis K Trabelsi T Tsuboyama M Uchida T Uglov Y Unno S Uno Y Usov U Uwer SE Vahsen C Van Hulse P Vanhoefer G Varner G Vasseur J Va'vra M Verderi A Vinokurova L Vitale Vorobyev V C Voss MN Wagner Wagner SR R Waldi JJ Walsh CH Wang MZ Wang P Wang Y Watanabe CA West KM Williams FF Wilson Wilson JR WJ Wisniewski E Won G Wormser DM Wright SL Wu HW Wulsin H Yamamoto J Yamaoka S Yashchenko CZ Yuan Y Yusa A Zallo CC Zhang ZP Zhang Zhilich V Zhulanov V A Zupanc Collaboration. BaBar Collaboration. Belle
Abstract	: We report a measurement of the time-dependent CP asymmetry of B[over ¯]^{0}→D_{CP}^{()}h^{0} decays, where the light neutral hadron h^{0} is a π^{0}, η, or ω meson, and the neutral D meson is reconstructed in the CP eigenstates K^{+}K^{-}, K_{S}^{0}π^{0}, or K_{S}^{0}ω. The measurement is performed combining the final data samples collected at the ϒ(4S) resonance by the BABAR and Belle experiments at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471±3)×10^{6} BB[over ¯] pairs recorded by the BABAR detector and (772±11)×10^{6} BB[over ¯] pairs recorded by the Belle detector. We measure the CP asymmetry parameters -η_{f}S=+0.66±0.10(stat)±0.06(syst) and C=-0.02±0.07(stat)±0.03(syst). These results correspond to the first observation of CP violation in B[over ¯]^{0}→D_{CP}^{()}h^{0} decays. The hypothesis of no mixing-induced CP violation is excluded in these decays at the level of 5.4 standard deviations.
Year of Publication	: 2015
Journal	: Physical review letters
Volume	: 115
Issue	: 12
Number of Pages	: 121604
Date Published	: 2015
ISSN Number	: 0031-9007
URL	: https://link.aps.org/abstract/PRL/v115/p121604
DOI	: 10.1103/PhysRevLett.115.121604
Short Title	: Phys Rev Lett
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