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First Evidence for cos2β>0 and Resolution of the Cabibbo-Kobayashi-Maskawa Quark-Mixing Unitarity Triangle Ambiguity.

  • Adachi I SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan.
  • Adye T Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, United Kingdom.
  • Ahmed H St. Francis Xavier University, Antigonish, Nova Scotia, Canada B2G 2W5.
  • Ahn JK Korea University, Seoul 136-713, South Korea.
  • Aihara H Department of Physics, University of Tokyo, Tokyo 113-0033, Japan.
  • Akar S Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France.
  • Alam MS State University of New York, Albany, New York 12222, USA.
  • Albert J University of Victoria, Victoria, British Columbia, Canada V8W 3P6.
  • Anulli F INFN Sezione di Roma, I-00185 Roma, Italy.
  • Arnaud N Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France.
  • Asner DM Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Aston D SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Atmacan H University of South Carolina, Columbia, South Carolina 29208, USA.
  • Aushev T Moscow Institute of Physics and Technology, Moscow Region 141700, Russian Federation.
  • Ayad R Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451, Kingdom of Saudi Arabia.
  • Babu V Tata Institute of Fundamental Research, Mumbai 400005, India.
  • Badhrees I King Abdulaziz City for Science and Technology, Riyadh 11442, Kingdom of Saudi Arabia.
  • Bakich AM School of Physics, University of Sydney, New South Wales 2006, Australia.
  • Banerjee S University of Louisville, Louisville, Kentucky 40292, USA.
  • Bansal V Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
  • Barlow RJ University of Manchester, Manchester M13 9PL, United Kingdom.
  • Batignani G INFN Sezione di Pisa, I-56127 Pisa, Italy.
  • Beaulieu A University of Victoria, Victoria, British Columbia, Canada V8W 3P6.
  • Behera P Indian Institute of Technology Madras, Chennai 600036, India.
  • Bellis M Stanford University, Stanford, California 94305, USA.
  • Ben-Haim E Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France.
  • Bernard D Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
  • Bernlochner FU University of Victoria, Victoria, British Columbia, Canada V8W 3P6.
  • Bettarini S INFN Sezione di Pisa, I-56127 Pisa, Italy.
  • Bettoni D INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
  • Bevan AJ Queen Mary, University of London, London, E1 4NS, United Kingdom.
  • Bhardwaj V Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306, India.
  • Bhuyan B Indian Institute of Technology Guwahati, Assam 781039, India.
  • Bianchi F INFN Sezione di Torino, I-10125 Torino, Italy.
  • Biasini M INFN Sezione di Perugia, I-06123 Perugia, Italy.
  • Biswal J J. Stefan Institute, 1000 Ljubljana, Slovenia.
  • Blinov VE Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Bomben M Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France.
  • Bondar A Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Bonneaud GR Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France.
  • Bozek A H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342, Poland.
  • Bozzi C INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
  • Bračko M J. Stefan Institute, 1000 Ljubljana, Slovenia.
  • Browder TE University of Hawaii, Honolulu, Hawaii 96822, USA.
  • Brown DN Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA.
  • Brown DN University of Louisville, Louisville, Kentucky 40292, USA.
  • Bünger C Universität Rostock, D-18051 Rostock, Germany.
  • Burchat PR Stanford University, Stanford, California 94305, USA.
  • Buzykaev AR Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Calabrese R INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
  • Calcaterra A INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
  • Calderini G Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France.
  • Di Carlo S Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France.
  • Carpinelli M INFN Sezione di Pisa, I-56127 Pisa, Italy.
  • Cartaro C SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Casarosa G INFN Sezione di Pisa, I-56127 Pisa, Italy.
  • Cenci R University of Maryland, College Park, Maryland 20742, USA.
  • Chao DS California Institute of Technology, Pasadena, California 91125, USA.
  • Chauveau J Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France.
  • Cheaib R University of Mississippi, University, Mississippi 38677, USA.
  • Chen A National Central University, Chung-li 32054, Taiwan.
  • Chen C Iowa State University, Ames, Iowa 50011, USA.
  • Cheng CH California Institute of Technology, Pasadena, California 91125, USA.
  • Cheon BG Hanyang University, Seoul 133-791, South Korea.
  • Chilikin K P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russian Federation.
  • Cho K Korea Institute of Science and Technology Information, Daejeon 305-806, South Korea.
  • Choi Y Sungkyunkwan University, Suwon 440-746, South Korea.
  • Choudhury S Indian Institute of Technology Hyderabad, Telangana 502285, India.
  • Chrzaszcz M INFN Sezione di Pisa, I-56127 Pisa, Italy.
  • Cibinetto G INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
  • Cinabro D Wayne State University, Detroit, Michigan 48202, USA.
  • Cochran J Iowa State University, Ames, Iowa 50011, USA.
  • Coleman JP University of Liverpool, Liverpool L69 7ZE, United Kingdom.
  • Convery MR SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Cowan G University of London, Royal Holloway and Bedford New College, Egham, Surrey TW20 0EX, United Kingdom.
  • Cowan R Massachusetts Institute of Technology, Laboratory for Nuclear Science, Cambridge, Massachusetts 02139, USA.
  • Cremaldi L University of Mississippi, University, Mississippi 38677, USA.
  • Cunliffe S Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany.
  • Dash N Indian Institute of Technology Bhubaneswar, Satya Nagar 751007, India.
  • Davier M Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France.
  • Davis CL University of Louisville, Louisville, Kentucky 40292, USA.
  • De Mori F INFN Sezione di Torino, I-10125 Torino, Italy.
  • De Nardo G INFN Sezione di Napoli, I-80126 Napoli, Italy.
  • Denig AG Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany.
  • de Sangro R INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
  • Dey B INFN Sezione di Milano, I-20133 Milano, Italy.
  • Di Lodovico F Queen Mary, University of London, London, E1 4NS, United Kingdom.
  • Dittrich S Universität Rostock, D-18051 Rostock, Germany.
  • Doležal Z Faculty of Mathematics and Physics, Charles University, 121 16 Prague, Czech Republic.
  • Dorfan J SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Drásal Z Faculty of Mathematics and Physics, Charles University, 121 16 Prague, Czech Republic.
  • Druzhinin VP Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Dunwoodie W SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Ebert M SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Echenard B California Institute of Technology, Pasadena, California 91125, USA.
  • Eidelman S Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Eigen G University of Bergen, Institute of Physics, N-5007 Bergen, Norway.
  • Eisner AM University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
  • Emery S CEA, Irfu, SPP, Centre de Saclay, F-91191 Gif-sur-Yvette, France.
  • Epifanov D Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Ernst JA State University of New York, Albany, New York 12222, USA.
  • Faccini R INFN Sezione di Roma, I-00185 Roma, Italy.
  • Fast JE Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
  • Feindt M Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany.
  • Ferber T Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany.
  • Ferrarotto F INFN Sezione di Roma, I-00185 Roma, Italy.
  • Ferroni F INFN Sezione di Roma, I-00185 Roma, Italy.
  • Field RC SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Filippi A INFN Sezione di Torino, I-10125 Torino, Italy.
  • Finocchiaro G INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
  • Fioravanti E INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
  • Flood KT California Institute of Technology, Pasadena, California 91125, USA.
  • Forti F INFN Sezione di Pisa, I-56127 Pisa, Italy.
  • Fritsch M Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany.
  • Fulsom BG Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
  • Gabathuler E University of Liverpool, Liverpool L69 7ZE, United Kingdom.
  • Gamba D INFN Sezione di Torino, I-10125 Torino, Italy.
  • Garg R Panjab University, Chandigarh 160014, India.
  • Garmash A Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Gary JW University of California at Riverside, Riverside, California 92521, USA.
  • Garzia I INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
  • Gaur V Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA.
  • Gaz A INFN Sezione di Padova, I-35131 Padova, Italy.
  • Gelb M Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany.
  • Gershon TJ Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom.
  • Li Gioi L Max-Planck-Institut für Physik, 80805 München, Germany.
  • Giorgi MA INFN Sezione di Pisa, I-56127 Pisa, Italy.
  • Giri A Indian Institute of Technology Hyderabad, Telangana 502285, India.
  • Godang R University of Mississippi, University, Mississippi 38677, USA.
  • Goldenzweig P Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany.
  • Golob B J. Stefan Institute, 1000 Ljubljana, Slovenia.
  • Golubev VB Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Gorodeisky R Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978, Israel.
  • Gradl W Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany.
  • Graham MT SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Grauges E Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona, Spain.
  • Griessinger K Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany.
  • Gritsan AV Johns Hopkins University, Baltimore, Maryland 21218, USA.
  • Grünberg O Universität Rostock, D-18051 Rostock, Germany.
  • Guan Y High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan.
  • Guido E INFN Sezione di Torino, I-10125 Torino, Italy.
  • Guttman N Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978, Israel.
  • Haba J SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan.
  • Hafner A Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany.
  • Hara T SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan.
  • Harrison PF Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom.
  • Hast C SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Hayasaka K Niigata University, Niigata 950-2181, Japan.
  • Hayashii H Nara Women's University, Nara 630-8506, Japan.
  • Hearty C Institute of Particle Physics, Vancouver, British Columbia, Canada V6T 1Z1.
  • Heck M Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany.
  • Hedges MT University of Hawaii, Honolulu, Hawaii 96822, USA.
  • Heß M Universität Rostock, D-18051 Rostock, Germany.
  • Hirose S Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan.
  • Hitlin DG California Institute of Technology, Pasadena, California 91125, USA.
  • Honscheid K Ohio State University, Columbus, Ohio 43210, USA.
  • Hou WS Department of Physics, National Taiwan University, Taipei 10617, Taiwan.
  • Hsu CL School of Physics, University of Melbourne, Victoria 3010, Australia.
  • Huard Z University of Cincinnati, Cincinnati, Ohio 45221, USA.
  • Van Hulse C University of the Basque Country UPV/EHU, 48080 Bilbao, Spain.
  • Hutchcroft DE University of Liverpool, Liverpool L69 7ZE, United Kingdom.
  • Inami K Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan.
  • Inguglia G Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany.
  • Innes WR SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Ishikawa A Department of Physics, Tohoku University, Sendai 980-8578, Japan.
  • Itoh R SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan.
  • Iwasaki M Osaka City University, Osaka 558-8585, Japan.
  • Iwasaki Y High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan.
  • Izen JM University of Texas at Dallas, Richardson, Texas 75083, USA.
  • Jacobs WW Indiana University, Bloomington, Indiana 47408, USA.
  • Jawahery A University of Maryland, College Park, Maryland 20742, USA.
  • Jessop CP University of Notre Dame, Notre Dame, Indiana 46556, USA.
  • Jia S Beihang University, Beijing 100191, China.
  • Jin Y Department of Physics, University of Tokyo, Tokyo 113-0033, Japan.
  • Joo KK Chonnam National University, Kwangju 660-701, South Korea.
  • Julius T School of Physics, University of Melbourne, Victoria 3010, Australia.
  • Kaliyar AB Indian Institute of Technology Madras, Chennai 600036, India.
  • Kang KH Kyungpook National University, Daegu 702-701, South Korea.
  • Karyan G Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany.
  • Kass R Ohio State University, Columbus, Ohio 43210, USA.
  • Kichimi H High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan.
  • Kim DY Soongsil University, Seoul 156-743, South Korea.
  • Kim JB Korea University, Seoul 136-713, South Korea.
  • Kim KT Korea University, Seoul 136-713, South Korea.
  • Kim SH Hanyang University, Seoul 133-791, South Korea.
  • Kim J California Institute of Technology, Pasadena, California 91125, USA.
  • Kim P SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • King GJ University of Victoria, Victoria, British Columbia, Canada V8W 3P6.
  • Kinoshita K University of Cincinnati, Cincinnati, Ohio 45221, USA.
  • Koch H Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany.
  • Kodyš P Faculty of Mathematics and Physics, Charles University, 121 16 Prague, Czech Republic.
  • Kolomensky YG Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA.
  • Korpar S J. Stefan Institute, 1000 Ljubljana, Slovenia.
  • Kotchetkov D University of Hawaii, Honolulu, Hawaii 96822, USA.
  • Kowalewski R University of Victoria, Victoria, British Columbia, Canada V8W 3P6.
  • Kravchenko EA Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Križan P J. Stefan Institute, 1000 Ljubljana, Slovenia.
  • Kroeger R University of Mississippi, University, Mississippi 38677, USA.
  • Krokovny P Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Kuhr T Ludwig Maximilians University, 80539 Munich, Germany.
  • Kulasiri R Kennesaw State University, Kennesaw, Georgia 30144, USA.
  • Kumita T Tokyo Metropolitan University, Tokyo 192-0397, Japan.
  • Kuzmin A Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Kwon YJ Yonsei University, Seoul 120-749, South Korea.
  • Lacker HM Humboldt-Universität zu Berlin, Institut für Physik, D-12489 Berlin, Germany.
  • Lafferty GD University of Manchester, Manchester M13 9PL, United Kingdom.
  • Lanceri L INFN Sezione di Trieste and Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy.
  • Lange JS Justus-Liebig-Universität Gießen, 35392 Gießen, Germany.
  • Lange DJ Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Lankford AJ University of California at Irvine, Irvine, California 92697, USA.
  • Latham TE Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom.
  • Leddig T Universität Rostock, D-18051 Rostock, Germany.
  • Le Diberder F Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France.
  • Lee IS Hanyang University, Seoul 133-791, South Korea.
  • Lee SC Kyungpook National University, Daegu 702-701, South Korea.
  • Lees JP Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France.
  • Leith DWGS SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Li LK Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
  • Li YB Peking University, Beijing 100871, China.
  • Li Y California Institute of Technology, Pasadena, California 91125, USA.
  • Libby J Indian Institute of Technology Madras, Chennai 600036, India.
  • Liventsev D High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan.
  • Lockman WS University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
  • Long O University of California at Riverside, Riverside, California 92521, USA.
  • LoSecco JM University of Notre Dame, Notre Dame, Indiana 46556, USA.
  • Lou XC University of Texas at Dallas, Richardson, Texas 75083, USA.
  • Lubej M J. Stefan Institute, 1000 Ljubljana, Slovenia.
  • Lueck T University of Victoria, Victoria, British Columbia, Canada V8W 3P6.
  • Luitz S SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Luo T Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443, China.
  • Luppi E INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
  • Lusiani A INFN Sezione di Pisa, I-56127 Pisa, Italy.
  • Lutz AM Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France.
  • MacFarlane DB SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • MacNaughton J High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan.
  • Mallik U University of Iowa, Iowa City, Iowa 52242, USA.
  • Manoni E INFN Sezione di Perugia, I-06123 Perugia, Italy.
  • Marchiori G Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France.
  • Margoni M INFN Sezione di Padova, I-35131 Padova, Italy.
  • Martellotti S INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
  • Martinez-Vidal F IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain.
  • Masuda M Earthquake Research Institute, University of Tokyo, Tokyo 113-0032, Japan.
  • Matsuda T University of Miyazaki, Miyazaki 889-2192, Japan.
  • Mattison TS University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
  • Matvienko D Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • McKenna JA University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
  • Meadows BT University of Cincinnati, Cincinnati, Ohio 45221, USA.
  • Merola M INFN Sezione di Napoli, I-80126 Napoli, Italy.
  • Miyabayashi K Nara Women's University, Nara 630-8506, Japan.
  • Miyashita TS California Institute of Technology, Pasadena, California 91125, USA.
  • Miyata H Niigata University, Niigata 950-2181, Japan.
  • Mizuk R P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russian Federation.
  • Mohanty GB Tata Institute of Fundamental Research, Mumbai 400005, India.
  • Moon HK Korea University, Seoul 136-713, South Korea.
  • Mori T Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan.
  • Muller DR SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Müller T Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany.
  • Mussa R INFN Sezione di Torino, I-10125 Torino, Italy.
  • Nakano E Osaka City University, Osaka 558-8585, Japan.
  • Nakao M SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan.
  • Nanut T J. Stefan Institute, 1000 Ljubljana, Slovenia.
  • Nath KJ Indian Institute of Technology Guwahati, Assam 781039, India.
  • Nayak M High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan.
  • Neal H SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
  • Neri N INFN Sezione di Milano, I-20133 Milano, Italy.
  • Nisar NK University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
  • Nishida S SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan.
  • Nugent IM University of Victoria, Victoria, British Columbia, Canada V8W 3P6.
  • Oberhof B INFN Sezione di Pisa, I-56127 Pisa, Italy.
  • Ocariz J Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France.
  • Ogawa S Toho University, Funabashi 274-8510, Japan.
  • Ongmongkolkul P California Institute of Technology, Pasadena, California 91125, USA.
  • Ono H Nippon Dental University, Niigata 951-8580, Japan.
  • Onuchin AP Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation.
  • Onuki Y Department of Physics, University of Tokyo, Tokyo 113-0033, Japan.
  • Oyanguren A IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain.
  • Pakhlov P P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russian Federation.
  • Pakhlova G P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russian Federation.
  • Pal B University of Cincinnati, Cincinnati, Ohio 45221, USA.
  • Palano A INFN Sezione di Bari and Dipartimento di Fisica, Università di Bari, I-70126 Bari, Italy.
  • Palombo F INFN Sezione di Milano, I-20133 Milano, Italy.
  • Panduro Vazquez W University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
  • Paoloni E INFN Sezione di Pisa, I-56127 Pisa, Italy.
  • Pardi S INFN Sezione di Napoli, I-80126 Napoli, Italy.
  • Park H Kyungpook National University, Daegu 702-701, South Korea.
  • Passaggio S INFN Sezione di Genova, I-16146 Genova, Italy.
  • Patrignani C INFN Sezione di Genova, I-16146 Genova, Italy.
  • Patteri P INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
  • Paul S Department of Physics, Technische Universität München, 85748 Garching, Germany.
  • Pavelkin I Moscow Institute of Physics and Technology, Moscow Region 141700, Russian Federation.
  • Payne DJ University of Liverpool, Liverpool L69 7ZE, United Kingdom.
  • Pedlar TK Luther College, Decorah, Iowa 52101, USA.
  • Peimer DR Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978, Israel.
  • Peruzzi IM INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
  • Pestotnik R J. Stefan Institute, 1000 Ljubljana, Slovenia.
  • Piccolo M INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
  • Piilonen LE Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA.
  • Pilloni A INFN Sezione di Roma, I-00185 Roma, Italy.
  • Piredda G INFN Sezione di Roma, I-00185 Roma, Italy.
  • Poireau V Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France.
  • Popov V P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russian Federation.
  • Porter FC California Institute of Technology, Pasadena, California 91125, USA.
  • Posocco M INFN Sezione di Padova, I-35131 Padova, Italy.
  • Prell S Iowa State University, Ames, Iowa 50011, USA.
  • Prepost R University of Wisconsin, Madison, Wisconsin 53706, USA.
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  • 2019-01-13
Published in:
  • Physical review letters. - 2018
General Physics and Astronomy
English 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.
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