Search for a dark photon in e(+)e(-) collisions at BABAR
Affiliations
- 1 Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France.
- 2 Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona, Spain.
- 3 INFN Sezione di Bari, I-70126 Bari, Italy and Dipartimento di Fisica, Università di Bari, I-70126 Bari, Italy.
- 4 University of Bergen, Institute of Physics, N-5007 Bergen, Norway.
- 5 Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA.
- 6 Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany.
- 7 University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
- 8 Brunel University, Uxbridge, Middlesex UB8 3PH, United Kingdom.
- 9 Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia and Novosibirsk State University, Novosibirsk 630090, Russia and Novosibirsk State Technical University, Novosibirsk 630092, Russia.
- 10 Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
- 11 Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia and Novosibirsk State University, Novosibirsk 630090, Russia.
- 12 University of California at Irvine, Irvine, California 92697, USA.
- 13 University of California at Riverside, Riverside, California 92521, USA.
- 14 University of California at Santa Barbara, Santa Barbara, California 93106, USA.
- 15 University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
- 16 California Institute of Technology, Pasadena, California 91125, USA.
- 17 University of Cincinnati, Cincinnati, Ohio 45221, USA.
- 18 University of Colorado, Boulder, Colorado 80309, USA.
- 19 Colorado State University, Fort Collins, Colorado 80523, USA.
- 20 Technische Universität Dortmund, Fakultät Physik, D-44221 Dortmund, Germany.
- 21 Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
- 22 University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom.
- 23 INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
- 24 INFN Sezione di Ferrara, I-44122 Ferrara, Italy and Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy.
- 25 INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
- 26 INFN Sezione di Genova, I-16146 Genova, Italy and Dipartimento di Fisica, Università di Genova, I-16146 Genova, Italy.
- 27 INFN Sezione di Genova, I-16146 Genova, Italy.
- 28 Indian Institute of Technology Guwahati, Guwahati, Assam 781 039, India.
- 29 Universität Heidelberg, Physikalisches Institut, D-69120 Heidelberg, Germany.
- 30 Humboldt-Universität zu Berlin, Institut für Physik, D-12489 Berlin, Germany.
- 31 Imperial College London, London SW7 2AZ, United Kingdom.
- 32 University of Iowa, Iowa City, Iowa 52242, USA.
- 33 Iowa State University, Ames, Iowa 50011-3160, USA.
- 34 Physics Department, Jazan University, Jazan 22822, Kingdom of Saudia Arabia.
- 35 Johns Hopkins University, Baltimore, Maryland 21218, USA.
- 36 Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France.
- 37 Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
- 38 University of Liverpool, Liverpool L69 7ZE, United Kingdom.
- 39 Queen Mary, University of London, London E1 4NS, United Kingdom.
- 40 University of London, Royal Holloway and Bedford New College, Egham, Surrey TW20 0EX, United Kingdom.
- 41 University of Louisville, Louisville, Kentucky 40292, USA.
- 42 Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany.
- 43 University of Manchester, Manchester M13 9PL, United Kingdom.
- 44 University of Maryland, College Park, Maryland 20742, USA.
- 45 Massachusetts Institute of Technology, Laboratory for Nuclear Science, Cambridge, Massachusetts 02139, USA.
- 46 McGill University, Montréal, Québec, Canada H3A 2T8.
- 47 INFN Sezione di Milano, I-20133 Milano, Italy.
- 48 INFN Sezione di Milano, I-20133 Milano, Italy and Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy.
- 49 University of Mississippi, University, Mississippi 38677, USA.
- 50 Université de Montréal, Physique des Particules, Montréal, Québec, Canada H3C 3J7.
- 51 INFN Sezione di Napoli, I-80126 Napoli, Italy and Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy.
- 52 NIKHEF, National Institute for Nuclear Physics and High Energy Physics, NL-1009 DB Amsterdam, Netherlands.
- 53 University of Notre Dame, Notre Dame, Indiana 46556, USA.
- 54 Ohio State University, Columbus, Ohio 43210, USA.
- 55 INFN Sezione di Padova, I-35131 Padova, Italy and Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy.
- 56 INFN Sezione di Padova, I-35131 Padova, Italy.
- 57 Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France.
- 58 INFN Sezione di Perugia, I-06123 Perugia, Italy and Dipartimento di Fisica, Università di Perugia, I-06123 Perugia, Italy.
- 59 INFN Sezione di Perugia, I-06123 Perugia, Italy.
- 60 INFN Sezione di Pisa, I-56127 Pisa, Italy and Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy.
- 61 INFN Sezione di Pisa, I-56127 Pisa, Italy.
- 62 INFN Sezione di Pisa, I-56127 Pisa, Italy and Scuola Normale Superiore di Pisa, I-56127 Pisa, Italy.
- 63 Princeton University, Princeton, New Jersey 08544, USA.
- 64 INFN Sezione di Roma, I-00185 Roma, Italy and Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy.
- 65 INFN Sezione di Roma, I-00185 Roma, Italy.
- 66 Universität Rostock, D-18051 Rostock, Germany.
- 67 Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom.
- 68 CEA, Irfu, SPP, Centre de Saclay, F-91191 Gif-sur-Yvette, France.
- 69 SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
- 70 University of South Carolina, Columbia, South Carolina 29208, USA.
- 71 Southern Methodist University, Dallas, Texas 75275, USA.
- 72 Stanford University, Stanford, California 94305-4060, USA.
- 73 State University of New York, Albany, New York 12222, USA.
- 74 Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel.
- 75 University of Tennessee, Knoxville, Tennessee 37996, USA.
- 76 University of Texas at Austin, Austin, Texas 78712, USA.
- 77 University of Texas at Dallas, Richardson, Texas 75083, USA.
- 78 INFN Sezione di Torino, I-10125 Torino, Italy and Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy.
- 79 INFN Sezione di Torino, I-10125 Torino, Italy.
- 80 INFN Sezione di Trieste, I-34127 Trieste, Italy and Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy.
- 81 IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain.
- 82 University of Victoria, Victoria, British Columbia, Canada V8W 3P6.
- 83 Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom.
- 84 University of Wisconsin, Madison, Wisconsin 53706, USA.
- PMID: 25432035
- DOI: 10.1103/PhysRevLett.113.201801
Search for a dark photon in e(+)e(-) collisions at BABAR
Authors
Affiliations
- 1 Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France.
- 2 Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona, Spain.
- 3 INFN Sezione di Bari, I-70126 Bari, Italy and Dipartimento di Fisica, Università di Bari, I-70126 Bari, Italy.
- 4 University of Bergen, Institute of Physics, N-5007 Bergen, Norway.
- 5 Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA.
- 6 Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany.
- 7 University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
- 8 Brunel University, Uxbridge, Middlesex UB8 3PH, United Kingdom.
- 9 Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia and Novosibirsk State University, Novosibirsk 630090, Russia and Novosibirsk State Technical University, Novosibirsk 630092, Russia.
- 10 Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.
- 11 Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia and Novosibirsk State University, Novosibirsk 630090, Russia.
- 12 University of California at Irvine, Irvine, California 92697, USA.
- 13 University of California at Riverside, Riverside, California 92521, USA.
- 14 University of California at Santa Barbara, Santa Barbara, California 93106, USA.
- 15 University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA.
- 16 California Institute of Technology, Pasadena, California 91125, USA.
- 17 University of Cincinnati, Cincinnati, Ohio 45221, USA.
- 18 University of Colorado, Boulder, Colorado 80309, USA.
- 19 Colorado State University, Fort Collins, Colorado 80523, USA.
- 20 Technische Universität Dortmund, Fakultät Physik, D-44221 Dortmund, Germany.
- 21 Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France.
- 22 University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom.
- 23 INFN Sezione di Ferrara, I-44122 Ferrara, Italy.
- 24 INFN Sezione di Ferrara, I-44122 Ferrara, Italy and Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy.
- 25 INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy.
- 26 INFN Sezione di Genova, I-16146 Genova, Italy and Dipartimento di Fisica, Università di Genova, I-16146 Genova, Italy.
- 27 INFN Sezione di Genova, I-16146 Genova, Italy.
- 28 Indian Institute of Technology Guwahati, Guwahati, Assam 781 039, India.
- 29 Universität Heidelberg, Physikalisches Institut, D-69120 Heidelberg, Germany.
- 30 Humboldt-Universität zu Berlin, Institut für Physik, D-12489 Berlin, Germany.
- 31 Imperial College London, London SW7 2AZ, United Kingdom.
- 32 University of Iowa, Iowa City, Iowa 52242, USA.
- 33 Iowa State University, Ames, Iowa 50011-3160, USA.
- 34 Physics Department, Jazan University, Jazan 22822, Kingdom of Saudia Arabia.
- 35 Johns Hopkins University, Baltimore, Maryland 21218, USA.
- 36 Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France.
- 37 Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
- 38 University of Liverpool, Liverpool L69 7ZE, United Kingdom.
- 39 Queen Mary, University of London, London E1 4NS, United Kingdom.
- 40 University of London, Royal Holloway and Bedford New College, Egham, Surrey TW20 0EX, United Kingdom.
- 41 University of Louisville, Louisville, Kentucky 40292, USA.
- 42 Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany.
- 43 University of Manchester, Manchester M13 9PL, United Kingdom.
- 44 University of Maryland, College Park, Maryland 20742, USA.
- 45 Massachusetts Institute of Technology, Laboratory for Nuclear Science, Cambridge, Massachusetts 02139, USA.
- 46 McGill University, Montréal, Québec, Canada H3A 2T8.
- 47 INFN Sezione di Milano, I-20133 Milano, Italy.
- 48 INFN Sezione di Milano, I-20133 Milano, Italy and Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy.
- 49 University of Mississippi, University, Mississippi 38677, USA.
- 50 Université de Montréal, Physique des Particules, Montréal, Québec, Canada H3C 3J7.
- 51 INFN Sezione di Napoli, I-80126 Napoli, Italy and Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy.
- 52 NIKHEF, National Institute for Nuclear Physics and High Energy Physics, NL-1009 DB Amsterdam, Netherlands.
- 53 University of Notre Dame, Notre Dame, Indiana 46556, USA.
- 54 Ohio State University, Columbus, Ohio 43210, USA.
- 55 INFN Sezione di Padova, I-35131 Padova, Italy and Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy.
- 56 INFN Sezione di Padova, I-35131 Padova, Italy.
- 57 Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France.
- 58 INFN Sezione di Perugia, I-06123 Perugia, Italy and Dipartimento di Fisica, Università di Perugia, I-06123 Perugia, Italy.
- 59 INFN Sezione di Perugia, I-06123 Perugia, Italy.
- 60 INFN Sezione di Pisa, I-56127 Pisa, Italy and Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy.
- 61 INFN Sezione di Pisa, I-56127 Pisa, Italy.
- 62 INFN Sezione di Pisa, I-56127 Pisa, Italy and Scuola Normale Superiore di Pisa, I-56127 Pisa, Italy.
- 63 Princeton University, Princeton, New Jersey 08544, USA.
- 64 INFN Sezione di Roma, I-00185 Roma, Italy and Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy.
- 65 INFN Sezione di Roma, I-00185 Roma, Italy.
- 66 Universität Rostock, D-18051 Rostock, Germany.
- 67 Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom.
- 68 CEA, Irfu, SPP, Centre de Saclay, F-91191 Gif-sur-Yvette, France.
- 69 SLAC National Accelerator Laboratory, Stanford, California 94309 USA.
- 70 University of South Carolina, Columbia, South Carolina 29208, USA.
- 71 Southern Methodist University, Dallas, Texas 75275, USA.
- 72 Stanford University, Stanford, California 94305-4060, USA.
- 73 State University of New York, Albany, New York 12222, USA.
- 74 Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel.
- 75 University of Tennessee, Knoxville, Tennessee 37996, USA.
- 76 University of Texas at Austin, Austin, Texas 78712, USA.
- 77 University of Texas at Dallas, Richardson, Texas 75083, USA.
- 78 INFN Sezione di Torino, I-10125 Torino, Italy and Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy.
- 79 INFN Sezione di Torino, I-10125 Torino, Italy.
- 80 INFN Sezione di Trieste, I-34127 Trieste, Italy and Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy.
- 81 IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain.
- 82 University of Victoria, Victoria, British Columbia, Canada V8W 3P6.
- 83 Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom.
- 84 University of Wisconsin, Madison, Wisconsin 53706, USA.
- PMID: 25432035
- DOI: 10.1103/PhysRevLett.113.201801
Abstract
Dark sectors charged under a new Abelian interaction have recently received much attention in the context of dark matter models. These models introduce a light new mediator, the so-called dark photon (A^{'}), connecting the dark sector to the standard model. We present a search for a dark photon in the reaction e^{+}e^{-}→γA^{'}, A^{'}→e^{+}e^{-}, μ^{+}μ^{-} using 514 fb^{-1} of data collected with the BABAR detector. We observe no statistically significant deviations from the standard model predictions, and we set 90% confidence level upper limits on the mixing strength between the photon and dark photon at the level of 10^{-4}-10^{-3} for dark photon masses in the range 0.02-10.2 GeV. We further constrain the range of the parameter space favored by interpretations of the discrepancy between the calculated and measured anomalous magnetic moment of the muon.
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