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Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Derdzinski, M, Giuffrida, A, Kolomensky, Yu G et al (show 227 more authors) , Fritsch, M, Koch, H, Schroeder, T, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Lankford, AJ, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Vazquez, W Panduro, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Rohrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, de Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Ahmed, H, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP 
ORCID: 0000-0003-1319-0889, Gabathuler, E, Hutchcroft, DE ORCID: 0000-0002-4174-6509, Payne, DJ, Touramanis, C ORCID: 0000-0001-5191-2171, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, Sw, Brown, DN, Davis, CL, Denig, AG, Gradl, W, Griessinger, K, Hafner, A, Schubert, KR, Barlow, RJ, Lafferty, GD, Cenci, R, Jawahery, A, Roberts, DA, Cowan, R, Robertson, SH, Dey, B, Neri, N, Palombo, F, Cheaib, R, Cremaldi, L, Godang, R, Summers, DJ, Taras, P, De Nardo, G, Sciacca, C, Raven, G, Jessop, CP, LoSecco, JM, Honscheid, K, Kass, R, Gaz, A, Margoni, M, Posocco, M, Simi, G, Simonetto, F, Stroili, R, Akar, S, Ben-Haim, E, Bomben, M, Bonneaud, GR, Calderini, G, Chauveau, J, Marchiori, G, Ocariz, J, Biasini, M, Manoni, E, Rossi, A, Batignani, G, Bettarini, S, Carpinelli, M, Casarosa, G, Chrzaszcz, M, Forti, F, Giorgi, MA, Lusiani, A, Oberhof, B, Paoloni, E, Rama, M, Rizzo, G, Walsh, JJ, Smith, AJS, Anulli, F, Faccini, R, Ferrarotto, F, Ferroni, F, Pilloni, A, Piredda, G, Buenger, C, Dittrich, S, Gruenberg, O, Hess, M, Leddig, T, Voss, C, Waldi, R, Adye, T, Wilson, FF, Emery, S, Vasseur, G, Aston, D, Cartaro, C, Convery, MR, Dorfan, J, Dunwoodie, W, Ebert, M, Field, RC, Fulsom, BG, Graham, MT, Hast, C, Innes, WR, Kim, P, Leith, DWGS, Luitz, S, MacFarlane, DB, Muller, DR, Neal, H, Ratcliff, BN, Roodman, A, Sullivan, MK, Va'vra, J, Wisniewski, WJ, Purohit, MV, Wilson, JR, Randle-Conde, A, Sekula, SJ, Bellis, M, Burchat, PR, Puccio, EMT, Alam, MS, Ernst, JA, Gorodeisky, R, Guttman, N, Peimer, DR, Soffer, A, Spanier, SM, Ritchie, JL, Schwitters, RF, Izen, JM, Lou, XC, Bianchi, F, De Mori, F, Filippi, A, Gamba, D, Lanceri, L, Vitale, L, Martinez-Vidal, F, Oyanguren, A, Albert, J, Beaulieu, A, Bernlochner, FU, King, GJ, Kowalewski, R, Lueck, T, Nugent, IM, Roney, JM, Sobie, RJ, Tasneem, N, Gershon, TJ, Harrison, PF, Latham, TE, Prepost, R, Wu, SL and Collaboration, BaBar
(2017)
Search for Invisible Decays of a Dark Photon Produced in e(+)e(-) Collisions at BABAR.
PHYSICAL REVIEW LETTERS, 119 (13).
131804-.
Abstract
We search for single-photon events in 53 fb(-1) of e(+)e(-) collision data collected with the BABAR detector at the PEP-II B-Factory. We look for events with a single high-energy photon and a large missing momentum and energy, consistent with production of a spin-1 particle A' through the process e(+)e(-) -> gamma A'; A' -> invisible. Such particles, referred to as "dark photons," are motivated by theories applying a U(1) gauge symmetry to dark matter. We find no evidence for such processes and set 90% confidence level upper limits on the coupling strength of A' to e(+)e(-) in the mass range m(A') <= 8 GeV. In particular, our limits exclude the values of the A' coupling suggested by the dark-photon interpretation of the muon (g - 2)(mu) anomaly, as well as a broad range of parameters for the dark-sector models.
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