Search for a Dark Photon in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>Collisions at<i>BaBar</i>
J. P. Lees(Centre National de la Recherche Scientifique), V. Poireau(Centre National de la Recherche Scientifique), V. Tisserand(Centre National de la Recherche Scientifique), E. Graugés(Universitat de Barcelona), A. Palano(Istituto Nazionale di Fisica Nucleare, Sezione di Bari), G. Eigen(University of Bergen), B. Stugu(University of Bergen), D. N. Brown(University of Louisville), M. Feng(Lawrence Berkeley National Laboratory), L. T. Kerth(Lawrence Berkeley National Laboratory), Yu. G. Kolomensky(Lawrence Berkeley National Laboratory), M. J. Lee(Lawrence Berkeley National Laboratory), G. Lynch(Lawrence Berkeley National Laboratory), H. Koch(Ruhr University Bochum), T. Vazquez Schroeder(Ruhr University Bochum), C. Hearty(University of British Columbia), T. S. Mattison(University of British Columbia), J. A. McKenna(University of British Columbia), R. Y. So(University of British Columbia), A. Khan(Brunel University of London), V. E. Blinov(Novosibirsk State University), А. Р. Бузыкаев(Siberian Branch of the Russian Academy of Sciences), В. П. Дружинин(Novosibirsk State University), В. Б. Голубев(Novosibirsk State University), Е. А. Кравченко(Novosibirsk State University), A. P. Onuchin(Novosibirsk State University), S. I. Serednyakov(Novosibirsk State University), Yu. I. Skovpen(Novosibirsk State University), E. P. Solodov(Novosibirsk State University), K. Yu. Todyshev(Novosibirsk State University), A. J. Lankford(University of California, Irvine), M. Mandelkern(University of California, Irvine), B. Dey(University of California, Riverside), J. W. Gary(University of California, Riverside), O. R. Long(University of California, Riverside), C. Campagnari(University of California, Santa Barbara), M. Franco Sevilla(University of California, Santa Barbara), T. M. Hong(University of California, Santa Barbara), D. Kovalskyi(University of California, Santa Barbara), J. Richman(University of California, Santa Barbara), Christopher West(University of California, Santa Barbara), A. M. Eisner(University of California, Santa Cruz), W. S. Lockman(University of California, Santa Cruz), J. G. Panduro Vazquez(University of California, Santa Cruz), B. A. Schumm(University of California, Santa Cruz), A. Seiden(University of California, Santa Cruz), D. S. Chao(California Institute of Technology), C. H. Cheng(California Institute of Technology), B. Echenard(California Institute of Technology), K. T. Flood(California Institute of Technology), D. G. Hitlin(California Institute of Technology), T. S. Miyashita(California Institute of Technology), P. Ongmongkolkul(California Institute of Technology), F. C. Porter(California Institute of Technology), R. Andreassen(University of Cincinnati), Z. Huard(University of Cincinnati), B. T. Meadows(University of Cincinnati), B. G. Pushpawela(University of Cincinnati), M. D. Sokoloff(University of Cincinnati), L. Sun(University of Cincinnati), P. C. Bloom(University of Colorado Boulder), W. T. Ford(University of Colorado Boulder), A. Gaz(University of Colorado Boulder), J. G. Smith(University of Colorado Boulder), S. R. Wagner(University of Colorado Boulder), R. Ayad(Colorado State University), W. H. Toki(Colorado State University), B. Spaan(TU Dortmund University), D. Bernard(Centre National de la Recherche Scientifique), M. Verderi(Centre National de la Recherche Scientifique), S. Playfer(University of Edinburgh), D. Bettoni(Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara), C. Bozzi(Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara), R. Calabrese(University of Ferrara), G. Cibinetto(University of Ferrara), E. Fioravanti(University of Ferrara), I. Garzia(University of Ferrara), E. Luppi(University of Ferrara), L. Piemontese(Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara), V. Santoro(Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara), A. Calcaterra(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), R. de Sangro(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), G. Finocchiaro(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), S. Martellotti(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), P. Patteri(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), I. M. Peruzzi(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), M. Piccolo(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), M. Rama(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), A. Zallo(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati), R. Contri(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), M. Lo Vetere(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), M. R. Monge(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), S. Passaggio(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), C. Patrignani(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), E. Robutti(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), B. Bhuyan(Indian Institute of Technology Guwahati), V. Prasad(Indian Institute of Technology Guwahati), A. Adametz(Heidelberg University), U. Uwer(Heidelberg University), H. Lacker(Humboldt-Universität zu Berlin), P. D. Dauncey(Imperial College London), U. Mallik(University of Iowa), C. Chen(Iowa State University), J. Cochran(Iowa State University), S. Prell(Iowa State University), H. Ahmed(Jazan University), A. V. Gritsan(Johns Hopkins University), N. Arnaud(Université Paris-Sud), M. Davier(Université Paris-Sud), Д. Деркач(Université Paris-Sud), G. Grosdidier(Université Paris-Sud), F. Le Diberder(Université Paris-Sud), A.-M. Lutz(Université Paris-Sud), B. Malaescu(Université Paris-Sud), P. Roudeau(Université Paris-Sud), A. Stocchi(Université Paris-Sud), G. Wormser(Université Paris-Sud), D. J. Lange(Lawrence Livermore National Laboratory), D. Wright(Lawrence Livermore National Laboratory), J. P. Coleman(University of Liverpool), J. R. Fry(University of Liverpool), E. Gabathuler(University of Liverpool), D. Hutchcroft(University of Liverpool), D. J. Payne(University of Liverpool), C. Touramanis(University of Liverpool), A. J. Bevan(Queen Mary University of London), F. Di Lodovico(Queen Mary University of London), R. Sacco(Queen Mary University of London), G. Cowan(Royal Holloway University of London), J. Bougher(University of Louisville), D. N. Brown(University of Louisville), C. L. Davis(University of Louisville), A. G. Denig(Johannes Gutenberg University Mainz), M. Fritsch(Johannes Gutenberg University Mainz), W. Gradl(Johannes Gutenberg University Mainz), K. Grießinger(Johannes Gutenberg University Mainz), A. Hafner(Johannes Gutenberg University Mainz), K. R. Schubert(Johannes Gutenberg University Mainz), R. J. Barlow(University of Manchester), G. Lafferty(University of Manchester), R. Cenci(University of Maryland, College Park), B. Hamilton(University of Maryland, College Park), A. Jawahery(University of Maryland, College Park), D. A. Roberts(University of Maryland, College Park), R. Cowan(Massachusetts Institute of Technology), G. Sciolla(Massachusetts Institute of Technology), R. Cheaib(McGill University), P. M. Patel(McGill University), S. H. Robertson(McGill University), N. Néri(Istituto Nazionale di Fisica Nucleare, Sezione di Milano), F. Palombo(University of Milan), L. Cremaldi(University of Mississippi), R. Godang(University of Mississippi), P. Sonnek(University of Mississippi), D. J. Summers(University of Mississippi), M. Simard(Université de Montréal), P. Taras(Université de Montréal), G. De Nardo(Istituto Nazionale di Fisica Nucleare, Sezione di Napoli), G. Onorato(Istituto Nazionale di Fisica Nucleare, Sezione di Napoli), C. Sciacca(Istituto Nazionale di Fisica Nucleare, Sezione di Napoli), M. Martinelli(National Institute for Subatomic Physics), G. Raven(National Institute for Subatomic Physics), C. P. Jessop(University of Notre Dame), J. M. LoSecco(University of Notre Dame), K. Honscheid(The Ohio State University), R. Kass(The Ohio State University), E. Feltresi(University of Padua), M. Margoni(University of Padua), M. Morandin(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), M. Posocco(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), M. Rotondo(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), G. Simi(University of Padua), F. Simonetto(University of Padua), R. Stroili(University of Padua), S. Akar(Centre National de la Recherche Scientifique), E. Ben-Haim(Centre National de la Recherche Scientifique), M. Bomben(Centre National de la Recherche Scientifique), G. R. Bonneaud(Centre National de la Recherche Scientifique), H. Briand(Centre National de la Recherche Scientifique), G. Calderini(Centre National de la Recherche Scientifique), J. Chauveau(Centre National de la Recherche Scientifique), Ph. Leruste(Centre National de la Recherche Scientifique), G. Marchiori(Centre National de la Recherche Scientifique), J. Ocariz(Centre National de la Recherche Scientifique), M. Biasini(University of Perugia), E. Manoni(Istituto Nazionale di Fisica Nucleare, Sezione di Perugia), S. Pacetti(University of Perugia), A. Rossi(Istituto Nazionale di Fisica Nucleare, Sezione di Perugia), C. Angelini(University of Pisa), G. Batignani(University of Pisa), S. Bettarini(University of Pisa), M. Carpinelli(University of Pisa), G. Casarosa(University of Pisa), A. Cervelli(University of Pisa), M. Chrząszcz(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), F. Forti(University of Pisa), M. A. Giorgi(University of Pisa), A. Lusiani(Scuola Normale Superiore), B. Oberhof(University of Pisa), E. Paoloni(University of Pisa), A. Pérez(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), G. Rizzo(University of Pisa), J. Walsh(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), D. Lopes Pegna(Princeton University), J. Olsen(Princeton University), A. J. S. Smith(Princeton University), R. Faccini(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), F. Ferrarotto(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), F. Ferroni(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), M. Gaspero(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), L. Li Gioi(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), A. Pilloni(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), G. Piredda(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), C. Bünger(University of Rostock), S. Dittrich(University of Rostock), O. Grünberg(University of Rostock), T. Hartmann(University of Rostock), M. Heß(University of Rostock), T. Leddig(University of Rostock), C. Voß(University of Rostock), R. Waldi(University of Rostock), T. Adye(Rutherford Appleton Laboratory), E. O. Olaiya(Rutherford Appleton Laboratory), F. F. Wilson(Rutherford Appleton Laboratory), S. Emery(Commissariat à l'Énergie Atomique et aux Énergies Alternatives), G. Vasseur(Commissariat à l'Énergie Atomique et aux Énergies Alternatives), F. Anulli(SLAC National Accelerator Laboratory), D. Aston(SLAC National Accelerator Laboratory), D. J. Bard(SLAC National Accelerator Laboratory), C. Cartaro(SLAC National Accelerator Laboratory), M. Convery(SLAC National Accelerator Laboratory), J. Dorfan(SLAC National Accelerator Laboratory), G. P. Dubois-Felsmann(SLAC National Accelerator Laboratory), W. Dunwoodie(SLAC National Accelerator Laboratory), M. Ebert(SLAC National Accelerator Laboratory), R. C. Field(SLAC National Accelerator Laboratory), B. G. Fulsom(SLAC National Accelerator Laboratory), M. T. Graham(SLAC National Accelerator Laboratory), C. Hast(SLAC National Accelerator Laboratory), W. R. Innes(SLAC National Accelerator Laboratory), P. Kim(SLAC National Accelerator Laboratory), D. W. G. S. Leith(SLAC National Accelerator Laboratory), P. Lewis(SLAC National Accelerator Laboratory), D. Lindemann(SLAC National Accelerator Laboratory), S. Luitz(SLAC National Accelerator Laboratory), V. Lüth(SLAC National Accelerator Laboratory), H. L. Lynch(SLAC National Accelerator Laboratory), D. B. MacFarlane(SLAC National Accelerator Laboratory), D.R. Muller(SLAC National Accelerator Laboratory), H. A. Neal(SLAC National Accelerator Laboratory), M. Perl(SLAC National Accelerator Laboratory), T. Pulliam(SLAC National Accelerator Laboratory), B. N. Ratcliff(SLAC National Accelerator Laboratory), A. Roodman(SLAC National Accelerator Laboratory), A. A. Salnikov(SLAC National Accelerator Laboratory), R. H. Schindler(SLAC National Accelerator Laboratory), A. Snyder(SLAC National Accelerator Laboratory), D. Su(SLAC National Accelerator Laboratory), M. K. Sullivan(SLAC National Accelerator Laboratory), J. Va’vra(SLAC National Accelerator Laboratory), W. J. Wisniewski(SLAC National Accelerator Laboratory), H. W. Wulsin(SLAC National Accelerator Laboratory), M. V. Purohit(University of South Carolina), R. M. White(University of South Carolina), R. J. Wilson(University of South Carolina), A. Randle-Conde(Southern Methodist University), S. J. Sekula(Southern Methodist University), M. Bellis(Stanford University), P. R. Burchat(Stanford University), E. M. T. Puccio(Stanford University), M. S. Alam(Albany State University), J. Ernst(Albany State University), R. Gorodeisky(Tel Aviv University), N. Guttman(Tel Aviv University), D. R. Peimer(Tel Aviv University), A. Soffer(Tel Aviv University), S. M. Spanier(University of Tennessee at Knoxville), J. L. Ritchie(The University of Texas at Austin), A. M. Ruland(The University of Texas at Austin), R. F. Schwitters(The University of Texas at Austin), B. C. Wray(The University of Texas at Austin), J. M. Izen(The University of Texas at Dallas), X. C. Lou(The University of Texas at Dallas), F. Bianchi(Istituto Nazionale di Fisica Nucleare, Sezione di Torino), F. De Mori(Istituto Nazionale di Fisica Nucleare, Sezione di Torino), A. Filippi(Istituto Nazionale di Fisica Nucleare, Sezione di Torino), D. Gamba(Istituto Nazionale di Fisica Nucleare, Sezione di Torino), L. Lanceri(University of Trieste), L. Vitale(University of Trieste), F. Martínez-Vidal(Universitat de València), A. Oyanguren(Universitat de València), P. Villanueva-Pérez(Universitat de València), J. Albert(University of Victoria), Sw. Banerjee(University of Victoria), A. Beaulieu(University of Victoria), F. U. Bernlochner(University of Victoria), H. H. F. Choi(University of Victoria), G. J. King(University of Victoria), R. Kowalewski(University of Victoria), M. J. Lewczuk(University of Victoria), T. Lueck(University of Victoria), I. M. Nugent(University of Victoria), J. M. Roney(University of Victoria), R. Sobie(University of Victoria), N. Tasneem(University of Victoria), T. Gershon(University of Warwick), P. F. Harrison(University of Warwick), T. Latham(University of Warwick), H. R. Band(University of Wisconsin–Madison), S. Dasu(University of Wisconsin–Madison), Y. Pan(University of Wisconsin–Madison), R. Prepost(University of Wisconsin–Madison), S. L. Wu(University of Wisconsin–Madison)
Cited by 514Open Access
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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