Search for Darkonium in e^{+}e^{-} Collisions.

Autor: Lees JP; Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France., Poireau V; Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France., Tisserand V; Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France., Grauges E; Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona, Spain., Palano A; INFN Sezione di Bari, I-70126 Bari, Italy., Eigen G; University of Bergen, Institute of Physics, N-5007 Bergen, Norway., Brown DN; Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA., Kolomensky YG; Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA., Fritsch M; Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany., Koch H; Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany., Schroeder T; Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany., Cheaib R; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada., Hearty C; Institute of Particle Physics, Vancouver, British Columbia V6T 1Z1, Canada.; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada., Mattison TS; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada., McKenna JA; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada., So RY; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada., Blinov VE; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia.; Novosibirsk State Technical University, Novosibirsk 630092, Russia., Buzykaev AR; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia., Druzhinin VP; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Golubev VB; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Kozyrev EA; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Kravchenko EA; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Onuchin AP; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia.; Novosibirsk State Technical University, Novosibirsk 630092, Russia., Serednyakov SI; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Skovpen YI; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Solodov EP; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Todyshev KY; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Lankford AJ; University of California at Irvine, Irvine, California 92697, USA., Dey B; University of California at Riverside, Riverside, California 92521, USA., Gary JW; University of California at Riverside, Riverside, California 92521, USA., Long O; University of California at Riverside, Riverside, California 92521, USA., Eisner AM; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA., Lockman WS; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA., Panduro Vazquez W; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA., Chao DS; California Institute of Technology, Pasadena, California 91125, USA., Cheng CH; California Institute of Technology, Pasadena, California 91125, USA., Echenard B; California Institute of Technology, Pasadena, California 91125, USA., Flood KT; California Institute of Technology, Pasadena, California 91125, USA., Hitlin DG; California Institute of Technology, Pasadena, California 91125, USA., Kim J; California Institute of Technology, Pasadena, California 91125, USA., Li Y; California Institute of Technology, Pasadena, California 91125, USA., Lin DX; California Institute of Technology, Pasadena, California 91125, USA., Miyashita TS; California Institute of Technology, Pasadena, California 91125, USA., Ongmongkolkul P; California Institute of Technology, Pasadena, California 91125, USA., Oyang J; California Institute of Technology, Pasadena, California 91125, USA., Porter FC; California Institute of Technology, Pasadena, California 91125, USA., Röhrken M; California Institute of Technology, Pasadena, California 91125, USA., Huard Z; University of Cincinnati, Cincinnati, Ohio 45221, USA., Meadows BT; University of Cincinnati, Cincinnati, Ohio 45221, USA., Pushpawela BG; University of Cincinnati, Cincinnati, Ohio 45221, USA., Sokoloff MD; University of Cincinnati, Cincinnati, Ohio 45221, USA., Sun L; University of Cincinnati, Cincinnati, Ohio 45221, USA., Smith JG; University of Colorado, Boulder, Colorado 80309, USA., Wagner SR; University of Colorado, Boulder, Colorado 80309, USA., Bernard D; Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France., Verderi M; Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France., Bettoni D; INFN Sezione di Ferrara, I-44122 Ferrara, Italy., Bozzi C; INFN Sezione di Ferrara, I-44122 Ferrara, Italy., Calabrese R; INFN Sezione di Ferrara, I-44122 Ferrara, Italy.; Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy., Cibinetto G; INFN Sezione di Ferrara, I-44122 Ferrara, Italy.; Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy., Fioravanti E; INFN Sezione di Ferrara, I-44122 Ferrara, Italy.; Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy., Garzia I; INFN Sezione di Ferrara, I-44122 Ferrara, Italy.; Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy., Luppi E; INFN Sezione di Ferrara, I-44122 Ferrara, Italy.; Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy., Santoro V; INFN Sezione di Ferrara, I-44122 Ferrara, Italy., Calcaterra A; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., de Sangro R; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Finocchiaro G; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Martellotti S; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Patteri P; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Peruzzi IM; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Piccolo M; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Rotondo M; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Zallo A; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Passaggio S; INFN Sezione di Genova, I-16146 Genova, Italy., Patrignani C; INFN Sezione di Genova, I-16146 Genova, Italy., Shuve BJ; Harvey Mudd College, Claremont, California 91711, USA., Lacker HM; Humboldt-Universität zu Berlin, Institut für Physik, D-12489 Berlin, Germany., Bhuyan B; Indian Institute of Technology Guwahati, Guwahati, Assam 781 039, India., Mallik U; University of Iowa, Iowa City, Iowa 52242, USA., Chen C; Iowa State University, Ames, Iowa 50011, USA., Cochran J; Iowa State University, Ames, Iowa 50011, USA., Prell S; Iowa State University, Ames, Iowa 50011, USA., Gritsan AV; Johns Hopkins University, Baltimore, Maryland 21218, USA., Arnaud N; Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France., Davier M; Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France., Le Diberder F; Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France., Lutz AM; Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France., Wormser G; Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France., Lange DJ; Lawrence Livermore National Laboratory, Livermore, California 94550, USA., Wright DM; Lawrence Livermore National Laboratory, Livermore, California 94550, USA., Coleman JP; University of Liverpool, Liverpool L69 7ZE, United Kingdom., Gabathuler E; University of Liverpool, Liverpool L69 7ZE, United Kingdom., Hutchcroft DE; University of Liverpool, Liverpool L69 7ZE, United Kingdom., Payne DJ; University of Liverpool, Liverpool L69 7ZE, United Kingdom., Touramanis C; University of Liverpool, Liverpool L69 7ZE, United Kingdom., Bevan AJ; Queen Mary, University of London, London, E1 4NS, United Kingdom., Di Lodovico F; Queen Mary, University of London, London, E1 4NS, United Kingdom., Sacco R; Queen Mary, University of London, London, E1 4NS, United Kingdom., Cowan G; University of London, Royal Holloway and Bedford New College, Egham, Surrey TW20 0EX, United Kingdom., Banerjee S; University of Louisville, Louisville, Kentucky 40292, USA., Brown DN; University of Louisville, Louisville, Kentucky 40292, USA., Davis CL; University of Louisville, Louisville, Kentucky 40292, USA., Denig AG; Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany., Gradl W; Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany., Griessinger K; Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany., Hafner A; Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany., Schubert KR; Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany., Barlow RJ; University of Manchester, Manchester M13 9PL, United Kingdom., Lafferty GD; University of Manchester, Manchester M13 9PL, United Kingdom., Cenci R; University of Maryland, College Park, Maryland 20742, USA., Jawahery A; University of Maryland, College Park, Maryland 20742, USA., Roberts DA; University of Maryland, College Park, Maryland 20742, USA., Cowan R; Massachusetts Institute of Technology, Laboratory for Nuclear Science, Cambridge, Massachusetts 02139, USA., Robertson SH; Institute of Particle Physics, Montréal, Québec, Canada H3A 2T8.; McGill University, Montréal, Québec, Canada H3A 2T8., Seddon RM; McGill University, Montréal, Québec, Canada H3A 2T8., Neri N; INFN Sezione di Milano, I-20133 Milano, Italy., Palombo F; INFN Sezione di Milano, I-20133 Milano, Italy.; Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy., Cremaldi L; University of Mississippi, University, Mississippi 38677, USA., Godang R; University of Mississippi, University, Mississippi 38677, USA., Summers DJ; University of Mississippi, University, Mississippi 38677, USA., Taras P; Université de Montréal, Physique des Particules, Montréal, Québec H3C 3J7, Canada., De Nardo G; INFN Sezione di Napoli and Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy., Sciacca C; INFN Sezione di Napoli and Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy., Raven G; NIKHEF, National Institute for Nuclear Physics and High Energy Physics, NL-1009 DB Amsterdam, Netherlands., Jessop CP; University of Notre Dame, Notre Dame, Indiana 46556, USA., LoSecco JM; University of Notre Dame, Notre Dame, Indiana 46556, USA., Honscheid K; The Ohio State University, Columbus, Ohio 43210, USA., Kass R; The Ohio State University, Columbus, Ohio 43210, USA., Gaz A; INFN Sezione di Padova, I-35131 Padova, Italy., Margoni M; INFN Sezione di Padova, I-35131 Padova, Italy.; Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy., Posocco M; INFN Sezione di Padova, I-35131 Padova, Italy., Simi G; INFN Sezione di Padova, I-35131 Padova, Italy.; Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy., Simonetto F; INFN Sezione di Padova, I-35131 Padova, Italy.; Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy., Stroili R; INFN Sezione di Padova, I-35131 Padova, Italy.; Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy., Akar S; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Ben-Haim E; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Bomben M; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Bonneaud GR; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Calderini G; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Chauveau J; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Marchiori G; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Ocariz J; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Biasini M; INFN Sezione di Perugia, I-06123 Perugia, Italy.; Dipartimento di Fisica, Università di Perugia, I-06123 Perugia, Italy., Manoni E; INFN Sezione di Perugia, I-06123 Perugia, Italy., Rossi A; INFN Sezione di Perugia, I-06123 Perugia, Italy., Batignani G; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Bettarini S; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Carpinelli M; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Casarosa G; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Chrzaszcz M; INFN Sezione di Pisa, I-56127 Pisa, Italy., Forti F; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Giorgi MA; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Lusiani A; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Scuola Normale Superiore di Pisa, I-56127 Pisa, Italy., Oberhof B; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Paoloni E; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Rama M; INFN Sezione di Pisa, I-56127 Pisa, Italy., Rizzo G; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Walsh JJ; INFN Sezione di Pisa, I-56127 Pisa, Italy., Zani L; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Smith AJS; Princeton University, Princeton, New Jersey 08544, USA., Anulli F; INFN Sezione di Roma, I-00185 Roma, Italy., Faccini R; INFN Sezione di Roma, I-00185 Roma, Italy.; Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy., Ferrarotto F; INFN Sezione di Roma, I-00185 Roma, Italy., Ferroni F; INFN Sezione di Roma, I-00185 Roma, Italy., Pilloni A; INFN Sezione di Roma, I-00185 Roma, Italy.; Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy., Piredda G; INFN Sezione di Roma, I-00185 Roma, Italy., Bünger C; Universität Rostock, D-18051 Rostock, Germany., Dittrich S; Universität Rostock, D-18051 Rostock, Germany., Grünberg O; Universität Rostock, D-18051 Rostock, Germany., Heß M; Universität Rostock, D-18051 Rostock, Germany., Leddig T; Universität Rostock, D-18051 Rostock, Germany., Voß C; Universität Rostock, D-18051 Rostock, Germany., Waldi R; Universität Rostock, D-18051 Rostock, Germany., Adye T; Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom., Wilson FF; Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom., Emery S; IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France., Vasseur G; IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France., Aston D; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Cartaro C; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Convery MR; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Dorfan J; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Dunwoodie W; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Ebert M; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Field RC; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Fulsom BG; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Graham MT; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Hast C; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Innes WR; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Kim P; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Leith DWGS; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Luitz S; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., MacFarlane DB; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Muller DR; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Neal H; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Ratcliff BN; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Roodman A; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Sullivan MK; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Va'vra J; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Wisniewski WJ; SLAC National Accelerator Laboratory, Stanford, California 94309 USA., Purohit MV; University of South Carolina, Columbia, South Carolina 29208, USA., Wilson JR; University of South Carolina, Columbia, South Carolina 29208, USA., Randle-Conde A; Southern Methodist University, Dallas, Texas 75275, USA., Sekula SJ; Southern Methodist University, Dallas, Texas 75275, USA., Ahmed H; St. Francis Xavier University, Antigonish, Nova Scotia B2G 2W5, Canada., Bellis M; Stanford University, Stanford, California 94305, USA., Burchat PR; Stanford University, Stanford, California 94305, USA., Puccio EMT; Stanford University, Stanford, California 94305, USA., Alam MS; State University of New York, Albany, New York 12222, USA., Ernst JA; State University of New York, Albany, New York 12222, USA., Gorodeisky R; Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel., Guttman N; Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel., Peimer DR; Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel., Soffer A; Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel., Spanier SM; University of Tennessee, Knoxville, Tennessee 37996, USA., Ritchie JL; University of Texas at Austin, Austin, Texas 78712, USA., Schwitters RF; University of Texas at Austin, Austin, Texas 78712, USA., Izen JM; University of Texas at Dallas, Richardson, Texas 75083, USA., Lou XC; University of Texas at Dallas, Richardson, Texas 75083, USA., Bianchi F; INFN Sezione di Torino, I-10125 Torino, Italy.; Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy., De Mori F; INFN Sezione di Torino, I-10125 Torino, Italy.; Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy., Filippi A; INFN Sezione di Torino, I-10125 Torino, Italy., Gamba D; INFN Sezione di Torino, I-10125 Torino, Italy.; Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy., Lanceri L; INFN Sezione di Trieste and Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy., Vitale L; INFN Sezione di Trieste and Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy., Martinez-Vidal F; IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain., Oyanguren A; IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain., Albert J; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Beaulieu A; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Bernlochner FU; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., King GJ; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Kowalewski R; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Lueck T; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Nugent IM; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Roney JM; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Sobie RJ; Institute of Particle Physics, Victoria, British Columbia V8W 3P6, Canada.; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Tasneem N; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Gershon TJ; Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom., Harrison PF; Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom., Latham TE; Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom., Prepost R; University of Wisconsin, Madison, Wisconsin 53706, USA., Wu SL; University of Wisconsin, Madison, Wisconsin 53706, USA.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2022 Jan 14; Vol. 128 (2), pp. 021802.
DOI: 10.1103/PhysRevLett.128.021802
Abstrakt: Collider searches for dark sectors, new particles interacting only feebly with ordinary matter, have largely focused on identifying signatures of new mediators, leaving much of dark sector structures unexplored. In particular, the existence of dark matter bound states (darkonia) remains to be investigated. This possibility could arise in a simple model in which a dark photon (A^{'}) is light enough to generate an attractive force between dark fermions. We report herein a search for a J^{PC}=1^{--} darkonium state, the ϒ_{D}, produced in the reaction e^{+}e^{-}→γϒ_{D}, ϒ_{D}→A^{'}A^{'}A^{'}, where the dark photons subsequently decay into pairs of leptons or pions, using 514  fb^{-1} of data collected with the BABAR detector. No significant signal is observed, and we set bounds on the γ-A^{'} kinetic mixing as a function of the dark sector coupling constant for 0.001
Databáze: MEDLINE