Adachi I 1 , Adye T 2 , Ahmed H 3 , Ahn JK 4 , Aihara H 5 , Akar S 6 Show all authors , Alam MS 7 , Albert J 8 , Anulli F 9 , Arnaud N 10 , Asner DM 11 , Aston D 12 , Atmacan H 13 , Aushev T 14 , Ayad R 15 , Babu V 16 , Badhrees I 17 , Bakich AM 18 , Banerjee S 19 , Bansal V 20 , Barlow RJ 21 , Batignani G 22 , Beaulieu A 8 , Behera P 23 , Bellis M 24 , Ben-Haim E 6 , Bernard D 25 , Bernlochner FU 8 , Bettarini S 22 , Bettoni D 26 , Bevan AJ 27 , Bhardwaj V 28 , Bhuyan B 29 , Bianchi F 30 , Biasini M 31 , Biswal J 32 , Blinov VE 33 , Bomben M 6 , Bondar A 33 , Bonneaud GR 6 , Bozek A 34 , Bozzi C 26 , Bračko M 32 , Browder TE 35 , Brown DN 36 , Brown DN 19 , Bünger C 37 , Burchat PR 24 , Buzykaev AR 33 , Calabrese R 26 , Calcaterra A 38 , Calderini G 6 , Di Carlo S 10 , Carpinelli M 22 , Cartaro C 12 , Casarosa G 22 , Cenci R 39 , Chao DS 40 , Chauveau J 6 , Cheaib R 41 , Chen A 42 , Chen C 43 , Cheng CH 40 , Cheon BG 44 , Chilikin K 45 , Cho K 46 , Choi Y 47 , Choudhury S 48 , Chrzaszcz M 22 , Cibinetto G 26 , Cinabro D 49 , Cochran J 43 , Coleman JP 50 , Convery MR 12 , Cowan G 51 , Cowan R 52 , Cremaldi L 41 , Cunliffe S 53 , Dash N 54 , Davier M 10 , Davis CL 19 , De Mori F 30 , De Nardo G 55 , Denig AG 56 , de Sangro R 38 , Dey B 57 , Di Lodovico F 27 , Dittrich S 37 , Doležal Z 58 , Dorfan J 12 , Drásal Z 58 , Druzhinin VP 33 , Dunwoodie W 12 , Ebert M 12 , Echenard B 40 , Eidelman S 33 , Eigen G 59 , Eisner AM 60 , Emery S 61 , Epifanov D 33 , Ernst JA 7 , Faccini R 9 , Fast JE 20 , Feindt M 62 , Ferber T 53 , Ferrarotto F 9 , Ferroni F 9 , Field RC 12 , Filippi A 30 , Finocchiaro G 38 , Fioravanti E 26 , Flood KT 40 , Forti F 22 , Fritsch M 63 , Fulsom BG 20 , Gabathuler E 50 , Gamba D 30 , Garg R 64 , Garmash A 33 , Gary JW 65 , Garzia I 26 , Gaur V 66 , Gaz A 67 , Gelb M 62 , Gershon TJ 68 , Li Gioi L 69 , Giorgi MA 22 , Giri A 48 , Godang R 41 , Goldenzweig P 62 , Golob B 32 , Golubev VB 33 , Gorodeisky R 70 , Gradl W 56 , Graham MT 12 , Grauges E 71 , Griessinger K 56 , Gritsan AV 72 , Grünberg O 37 , Guan Y 73 , Guido E 30 , Guttman N 70 , Haba J 1 , Hafner A 56 , Hara T 1 , Harrison PF 68 , Hast C 12 , Hayasaka K 74 , Hayashii H 75 , Hearty C 76 , Heck M 62 , Hedges MT 35 , Heß M 37 , Hirose S 77 , Hitlin DG 40 , Honscheid K 78 , Hou WS 79 , Hsu CL 80 , Huard Z 81 , Van Hulse C 82 , Hutchcroft DE 50 , Inami K 77 , Inguglia G 53 , Innes WR 12 , Ishikawa A 83 , Itoh R 1 , Iwasaki M 84 , Iwasaki Y 73 , Izen JM 85 , Jacobs WW 86 , Jawahery A 39 , Jessop CP 87 , Jia S 88 , Jin Y 5 , Joo KK 89 , Julius T 80 , Kaliyar AB 23 , Kang KH 90 , Karyan G 53 , Kass R 78 , Kichimi H 73 , Kim DY 91 , Kim JB 4 , Kim KT 4 , Kim SH 44 , Kim J 40 , Kim P 12 , King GJ 8 , Kinoshita K 81 , Koch H 63 , Kodyš P 58 , Kolomensky YG 36 , Korpar S 32 , Kotchetkov D 35 , Kowalewski R 8 , Kravchenko EA 33 , Križan P 32 , Kroeger R 41 , Krokovny P 33 , Kuhr T 92 , Kulasiri R 93 , Kumita T 94 , Kuzmin A 33 , Kwon YJ 95 , Lacker HM 96 , Lafferty GD 21 , Lanceri L 97 , Lange JS 98 , Lange DJ 99 , Lankford AJ 100 , Latham TE 68 , Leddig T 37 , Le Diberder F 10 , Lee IS 44 , Lee SC 90 , Lees JP 101 , Leith DWGS 12 , Li LK 102 , Li YB 103 , Li Y 40 , Libby J 23 , Liventsev D 73 , Lockman WS 60 , Long O 65 , LoSecco JM 87 , Lou XC 85 , Lubej M 32 , Lueck T 8 , Luitz S 12 , Luo T 104 , Luppi E 26 , Lusiani A 22 , Lutz AM 10 , MacFarlane DB 12 , MacNaughton J 73 , Mallik U 105 , Manoni E 31 , Marchiori G 6 , Margoni M 67 , Martellotti S 38 , Martinez-Vidal F 106 , Masuda M 107 , Matsuda T 108 , Mattison TS 109 , Matvienko D 33 , McKenna JA 109 , Meadows BT 81 , Merola M 55 , Miyabayashi K 75 , Miyashita TS 40 , Miyata H 74 , Mizuk R 45 , Mohanty GB 16 , Moon HK 4 , Mori T 77 , Muller DR 12 , Müller T 62 , Mussa R 30 , Nakano E 84 , Nakao M 1 , Nanut T 32 , Nath KJ 29 , Nayak M 73 , Neal H 12 , Neri N 57 , Nisar NK 110 , Nishida S 1 , Nugent IM 8 , Oberhof B 22 , Ocariz J 6 , Ogawa S 111 , Ongmongkolkul P 40 , Ono H 112 , Onuchin AP 33 , Onuki Y 5 , Oyanguren A 106 , Pakhlov P 45 , Pakhlova G 45 , Pal B 81 , Palano A 113 , Palombo F 57 , Panduro Vazquez W 60 , Paoloni E 22 , Pardi S 55 , Park H 90 , Passaggio S 114 , Patrignani C 114 , Patteri P 38 , Paul S 115 , Pavelkin I 14 , Payne DJ 50 , Pedlar TK 116 , Peimer DR 70 , Peruzzi IM 38 , Pestotnik R 32 , Piccolo M 38 , Piilonen LE 66 , Pilloni A 9 , Piredda G 9 , Poireau V 101 , Popov V 45 , Porter FC 40 , Posocco M 67 , Prell S 43 , Prepost R 117 , Puccio EMT 24 , Purohit MV 13 , Pushpawela BG 81 , Rama M 22 , Randle-Conde A 118 , Ratcliff BN 12 , Raven G 119 , Resmi PK 23 , Ritchie JL 120 , Ritter M 92 , Rizzo G 22 , Roberts DA 39 , Robertson SH 121 , Röhrken M 40 , Roney JM 8 , Roodman A 12 , Rossi A 31 , Rotondo M 38 , Rozanska M 34 , Russo G 55 , Sacco R 27 , Al Said S 122 , Sakai Y 1 , Salehi M 92 , Sandilya S 81 , Santelj L 73 , Santoro V 26 , Sanuki T 83 , Savinov V 110 , Schneider O 123 , Schnell G 82 , Schroeder T 63 , Schubert KR 56 , Schwanda C 124 , Schwartz AJ 81 , Schwitters RF 120 , Sciacca C 55 , Seddon RM 125 , Seino Y 74 , Sekula SJ 118 , Senyo K 126 , Seon O 77 , Serednyakov SI 33 , Sevior ME 80 , Shebalin V 33 , Shen CP 88 , Shibata TA 127 , Shimizu N 5 , Shiu JG 79 , Simi G 67 , Simon F 69 , Simonetto F 67 , Skovpen YI 33 , Smith JG 128 , Smith AJS 129 , So RY 109 , Sobie RJ 130 , Soffer A 70 , Sokoloff MD 81 , Solodov EP 33 , Solovieva E 45 , Spanier SM 131 , Starič M 32 , Stroili R 67 , Sullivan MK 12 , Sumisawa K 1 , Sumiyoshi T 94 , Summers DJ 41 , Sun L 81 , Takizawa M 132 , Tamponi U 30 , Tanida K 133 , Taras P 134 , Tasneem N 8 , Tenchini F 80 , Tisserand V 101 , Todyshevx KY 33 , Touramanis C 50 , Uchida M 127 , Uglov T 45 , Unno Y 44 , Uno S 1 , Vahsen SE 35 , Varner G 35 , Vasseur G 61 , Va'vra J 12 , Červenkov D 58 , Verderi M 25 , Vitale L 97 , Vorobyev V 33 , Voß C 37 , Wagner SR 128 , Waheed E 80 , Waldi R 37 , Walsh JJ 22 , Wang B 81 , Wang CH 135 , Wang MZ 79 , Wang P 102 , Watanabe Y 136 , Wilson FF 2 , Wilson JR 13 , Wisniewski WJ 12 , Won E 4 , Wormser G 10 , Wright DM 99 , Wu SL 117 , Ye H 53 , Yuan CZ 102 , Yusa Y 74 , Zakharov S 45 , Zallo A 38 , Zani L 22 , Zhang ZP 137 , Zhilich V 33 , Zhukova V 45 , Zhulanov V 33 , Zupanc A 32 , BABAR Collaboration , Belle Collaboration

Affiliations 

  • 1 SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
  • 2 Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, United Kingdom
  • 3 St. Francis Xavier University, Antigonish, Nova Scotia, Canada B2G 2W5
  • 4 Korea University, Seoul 136-713, South Korea
  • 5 Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
  • 6 Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
  • 7 State University of New York, Albany, New York 12222, USA
  • 8 University of Victoria, Victoria, British Columbia, Canada V8W 3P6
  • 9 INFN Sezione di Roma, I-00185 Roma, Italy
  • 10 Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
  • 11 Brookhaven National Laboratory, Upton, New York 11973, USA
  • 12 SLAC National Accelerator Laboratory, Stanford, California 94309 USA
  • 13 University of South Carolina, Columbia, South Carolina 29208, USA
  • 14 Moscow Institute of Physics and Technology, Moscow Region 141700, Russian Federation
  • 15 Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451, Kingdom of Saudi Arabia
  • 16 Tata Institute of Fundamental Research, Mumbai 400005, India
  • 17 King Abdulaziz City for Science and Technology, Riyadh 11442, Kingdom of Saudi Arabia
  • 18 School of Physics, University of Sydney, New South Wales 2006, Australia
  • 19 University of Louisville, Louisville, Kentucky 40292, USA
  • 20 Pacific Northwest National Laboratory, Richland, Washington 99352, USA
  • 21 University of Manchester, Manchester M13 9PL, United Kingdom
  • 22 INFN Sezione di Pisa, I-56127 Pisa, Italy
  • 23 Indian Institute of Technology Madras, Chennai 600036, India
  • 24 Stanford University, Stanford, California 94305, USA
  • 25 Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France
  • 26 INFN Sezione di Ferrara, I-44122 Ferrara, Italy
  • 27 Queen Mary, University of London, London, E1 4NS, United Kingdom
  • 28 Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306, India
  • 29 Indian Institute of Technology Guwahati, Assam 781039, India
  • 30 INFN Sezione di Torino, I-10125 Torino, Italy
  • 31 INFN Sezione di Perugia, I-06123 Perugia, Italy
  • 32 J. Stefan Institute, 1000 Ljubljana, Slovenia
  • 33 Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
  • 34 H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342, Poland
  • 35 University of Hawaii, Honolulu, Hawaii 96822, USA
  • 36 Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA
  • 37 Universität Rostock, D-18051 Rostock, Germany
  • 38 INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
  • 39 University of Maryland, College Park, Maryland 20742, USA
  • 40 California Institute of Technology, Pasadena, California 91125, USA
  • 41 University of Mississippi, University, Mississippi 38677, USA
  • 42 National Central University, Chung-li 32054, Taiwan
  • 43 Iowa State University, Ames, Iowa 50011, USA
  • 44 Hanyang University, Seoul 133-791, South Korea
  • 45 P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russian Federation
  • 46 Korea Institute of Science and Technology Information, Daejeon 305-806, South Korea
  • 47 Sungkyunkwan University, Suwon 440-746, South Korea
  • 48 Indian Institute of Technology Hyderabad, Telangana 502285, India
  • 49 Wayne State University, Detroit, Michigan 48202, USA
  • 50 University of Liverpool, Liverpool L69 7ZE, United Kingdom
  • 51 University of London, Royal Holloway and Bedford New College, Egham, Surrey TW20 0EX, United Kingdom
  • 52 Massachusetts Institute of Technology, Laboratory for Nuclear Science, Cambridge, Massachusetts 02139, USA
  • 53 Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany
  • 54 Indian Institute of Technology Bhubaneswar, Satya Nagar 751007, India
  • 55 INFN Sezione di Napoli, I-80126 Napoli, Italy
  • 56 Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
  • 57 INFN Sezione di Milano, I-20133 Milano, Italy
  • 58 Faculty of Mathematics and Physics, Charles University, 121 16 Prague, Czech Republic
  • 59 University of Bergen, Institute of Physics, N-5007 Bergen, Norway
  • 60 University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA
  • 61 CEA, Irfu, SPP, Centre de Saclay, F-91191 Gif-sur-Yvette, France
  • 62 Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany
  • 63 Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany
  • 64 Panjab University, Chandigarh 160014, India
  • 65 University of California at Riverside, Riverside, California 92521, USA
  • 66 Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
  • 67 INFN Sezione di Padova, I-35131 Padova, Italy
  • 68 Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
  • 69 Max-Planck-Institut für Physik, 80805 München, Germany
  • 70 Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978, Israel
  • 71 Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona, Spain
  • 72 Johns Hopkins University, Baltimore, Maryland 21218, USA
  • 73 High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
  • 74 Niigata University, Niigata 950-2181, Japan
  • 75 Nara Women's University, Nara 630-8506, Japan
  • 76 Institute of Particle Physics, Vancouver, British Columbia, Canada V6T 1Z1
  • 77 Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
  • 78 Ohio State University, Columbus, Ohio 43210, USA
  • 79 Department of Physics, National Taiwan University, Taipei 10617, Taiwan
  • 80 School of Physics, University of Melbourne, Victoria 3010, Australia
  • 81 University of Cincinnati, Cincinnati, Ohio 45221, USA
  • 82 University of the Basque Country UPV/EHU, 48080 Bilbao, Spain
  • 83 Department of Physics, Tohoku University, Sendai 980-8578, Japan
  • 84 Osaka City University, Osaka 558-8585, Japan
  • 85 University of Texas at Dallas, Richardson, Texas 75083, USA
  • 86 Indiana University, Bloomington, Indiana 47408, USA
  • 87 University of Notre Dame, Notre Dame, Indiana 46556, USA
  • 88 Beihang University, Beijing 100191, China
  • 89 Chonnam National University, Kwangju 660-701, South Korea
  • 90 Kyungpook National University, Daegu 702-701, South Korea
  • 91 Soongsil University, Seoul 156-743, South Korea
  • 92 Ludwig Maximilians University, 80539 Munich, Germany
  • 93 Kennesaw State University, Kennesaw, Georgia 30144, USA
  • 94 Tokyo Metropolitan University, Tokyo 192-0397, Japan
  • 95 Yonsei University, Seoul 120-749, South Korea
  • 96 Humboldt-Universität zu Berlin, Institut für Physik, D-12489 Berlin, Germany
  • 97 INFN Sezione di Trieste and Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy
  • 98 Justus-Liebig-Universität Gießen, 35392 Gießen, Germany
  • 99 Lawrence Livermore National Laboratory, Livermore, California 94550, USA
  • 100 University of California at Irvine, Irvine, California 92697, USA
  • 101 Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France
  • 102 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • 103 Peking University, Beijing 100871, China
  • 104 Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443, China
  • 105 University of Iowa, Iowa City, Iowa 52242, USA
  • 106 IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain
  • 107 Earthquake Research Institute, University of Tokyo, Tokyo 113-0032, Japan
  • 108 University of Miyazaki, Miyazaki 889-2192, Japan
  • 109 University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
  • 110 University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
  • 111 Toho University, Funabashi 274-8510, Japan
  • 112 Nippon Dental University, Niigata 951-8580, Japan
  • 113 INFN Sezione di Bari and Dipartimento di Fisica, Università di Bari, I-70126 Bari, Italy
  • 114 INFN Sezione di Genova, I-16146 Genova, Italy
  • 115 Department of Physics, Technische Universität München, 85748 Garching, Germany
  • 116 Luther College, Decorah, Iowa 52101, USA
  • 117 University of Wisconsin, Madison, Wisconsin 53706, USA
  • 118 Southern Methodist University, Dallas, Texas 75275, USA
  • 119 NIKHEF, National Institute for Nuclear Physics and High Energy Physics, NL-1009 DB Amsterdam, The Netherlands
  • 120 University of Texas at Austin, Austin, Texas 78712, USA
  • 121 Institute of Particle Physics, Montréal, Québec, Canada H3A 2T8
  • 122 Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Kingdom of Saudi Arabia
  • 123 École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
  • 124 Institute of High Energy Physics, Vienna 1050, Austria
  • 125 McGill University, Montréal, Québec, Canada H3A 2T8
  • 126 Yamagata University, Yamagata 990-8560, Japan
  • 127 Tokyo Institute of Technology, Tokyo 152-8550, Japan
  • 128 University of Colorado, Boulder, Colorado 80309, USA
  • 129 Princeton University, Princeton, New Jersey 08544, USA
  • 130 Institute of Particle Physics, Victoria, British Columbia, Canada V8W 3P6
  • 131 University of Tennessee, Knoxville, Tennessee 37996, USA
  • 132 J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
  • 133 Advanced Science Research Center, Japan Atomic Energy Agency, Naka 319-1195, Japan
  • 134 Université de Montréal, Physique des Particules, Montréal, Québec, Canada H3C 3J7
  • 135 National United University, Miao Li 36003, Taiwan
  • 136 Kanagawa University, Yokohama 221-8686, Japan
  • 137 University of Science and Technology of China, Hefei 230026, China
Phys. Rev. Lett., 2018 Dec 28;121(26):261801.
PMID: 30636113 DOI: 10.1103/PhysRevLett.121.261801

Abstract

We present first evidence that the cosine of the CP-violating weak phase 2β is positive, and hence exclude trigonometric multifold solutions of the Cabibbo-Kobayashi-Maskawa (CKM) Unitarity Triangle using a time-dependent Dalitz plot analysis of B^{0}→D^{(*)}h^{0} with D→K_{S}^{0}π^{+}π^{-} decays, where h^{0}∈{π^{0},η,ω} denotes a light unflavored and neutral hadron. The measurement is performed combining the final data sets of the BABAR and Belle experiments collected at the ϒ(4S) resonance 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. The results of the measurement are sin2β=0.80±0.14(stat)±0.06(syst)±0.03(model) and cos2β=0.91±0.22(stat)±0.09(syst)±0.07(model). The result for the direct measurement of the angle β of the CKM Unitarity Triangle is β=[22.5±4.4(stat)±1.2(syst)±0.6(model)]°. The measurement assumes no direct CP violation in B^{0}→D^{(*)}h^{0} decays. The quoted model uncertainties are due to the composition of the D^{0}→K_{S}^{0}π^{+}π^{-} decay amplitude model, which is newly established by performing a Dalitz plot amplitude analysis using a high-statistics e^{+}e^{-}→cc[over ¯] data sample. CP violation is observed in B^{0}→D^{(*)}h^{0} decays at the level of 5.1 standard deviations. The significance for cos2β>0 is 3.7 standard deviations. The trigonometric multifold solution π/2-β=(68.1±0.7)° is excluded at the level of 7.3 standard deviations. The measurement resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.