Accès ouvert déclaré
2023
preprint
Search for $B$ Mesogenesis at BABAR
BABAR Collaboration, J. P. Lees, Vincent Poireau, V. Tisserand, E. Graugés, ANTIMO PALANO, G. Eigen, David N. Brown, Yu. G. Kolomensky, Martin Fritsch, H. Koch, R. Cheaib, C. Hearty, T. S. Mattison, J. A. McKenna, R. Y. So, V. E. Blinov, А. Р. Бузыкаев, В. П. Дружинин, Vladimir B. Golubev, E. A. Kozyrev, E. A. Kravchenko, A. P. Onuchin, S. I. Serednyakov, Yu. I. Skovpen, E. P. Solodov, Korneliy Yu. Todyshev, A. J. Lankford, B. Dey, J. William Gary, O. R. Long, A. M. Eisner, W. S. Lockman, J. G. Panduro Vazquez, D. S. Chao, C. H. Cheng, B. Echenard, K. T. Flood, David G. Hitlin, J. S. Kim, Y. Li, D. X. Lin, S. Middleton, T. S. Miyashita, Piti Ongmongkolkul, J. Oyang, Frank C. Porter, Markus Röhrken, Z. Huard, B. Meadows, B. G. Pushpawela, M. D. Sokoloff, L. Sun, J. G. Smith, S. R. Wagner, D. Bernard, M. Verderi, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Fioravanti, I. Garzia, E. Luppi, Valentina Santoro, Alessandro Calcaterra, Riccardo de Sangro, G. Finocchiaro, S. Martellotti, P. Patteri, I. M. Peruzzi, M. Piccolo, M. Rotondo, A. Zallo, Claudia Patrignani, Brian Shuve, H. Lacker, B. Bhuyan, U. Mallik, C. Chen, J. Cochran, S. Prell, Andrei V. Gritsan, N. Arnaud, M. Davier, Francois Le Diberder, A.-M. Lutz, G. Wormser, David J Lange, Douglas M. Wright, J. P. Coleman, E. Gabathuler, D. Hutchcroft, D. J. Payne, Christos Touramanis, Adrian John Bevan, Francesca Di Lodovico, R. Sacco, G. Cowan, Sw. Banerjee, D. N. Brown, C. L. Davis, A. G. Denig, W. Gradl, K. Grießinger, A. Hafner, Klaus R. Schubert, Roger John Barlow, George D. Lafferty, R. Cenci, Abolhassan Jawahery, D. A. Roberts, R. Cowan, Steven H Robertson, R. M. Seddon, N. Néri, F. Palombo, L. Cremaldi, R. Godang, D. J. Summers, P. Taras, G. De Nardo, C. Sciacca, Gerhard Raven, Colin P Jessop, John M. LoSecco, K. Honscheid, Robert E. Kass, Alessandro Gaz, M. Margoni, M. Posocco, Gabriele Simi, F. Simonetto, Roberto Stroili, S. Akar, E. Ben-Haim, M. Bomben, G. R. Bonneaud, G. Calderini, Jacques Chauveau, Giovanni Marchiori, J. Ocariz, M. Biasini, E. Manoni, A. Rossi, G. Batignani, S. Bettarini, M. Carpinelli, G. Casarosa, M. Chrząszcz, F. Forti, M. A. Giorgi, A. Lusiani, B. Oberhof, Eugenio Paoloni, M. Rama, G. Rizzo, J. Walsh, L. Zani, A. Smith, F. Anulli, R. Faccini, F. Ferrarotto, F. Ferroni, A. Pilloni, G. Piredda, C. Bünger, S. Dittrich, O. Grünberg, M. Heß, T. Leddig, C. Voß, R. Waldi, T. Adye, F. F. Wilson, S. Emery, G. Vasseur, David A. Aston, C. Cartaro, M. Convery, J. Dorfan, W. Dunwoodie, Marcus Ebert, R. C. Field, B. G. Fulsom, M. T. Graham, Carsten HAST, W. R. Innes, P. Kim, D. W. G. S. Leith, S. Luitz, David B MacFarlane, D.R. Muller, Homer A. Neal, B. N. Ratcliff, Aaron J. Roodman, M. K. Sullivan, J. Va'vra, W. J. Wisniewski, M. V. Purohit, Jonathan R. Wilson, A. Randle-Conde, S. J. Sekula, H. Ahmed, N. Tasneem, M. Bellis, P. R. Burchat, E. M. T. Puccio, M. S. Alam, J. Ernst, R. Gorodeisky, N. Guttman, D. R. Peimer, A. Soffer, S. Spanier, Jack L. Ritchie, R. F. Schwitters, J. M. Izen, F. Bianchi, F. De Mori, A. Filippi, D. Gamba, L. Lanceri, Lorenzo G. Vitale, F. Martínez-Vidal, Justin E Albert, A. Beaulieu, F. U. Bernlochner, G. J. King, R. Kowalewski, T. Lueck, C. Miller, I. M. Nugent, J. Michael Roney, R. J. Sobie, T. Gershon, P. F. Harrison, T. Latham, R. Prepost, Sau Lan Wu
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Le résumé fourni par la source
A new mechanism has been proposed to simultaneously explain the presence of dark matter and the matter-antimatter asymmetry in the universe. This scenario predicts exotic $B$ meson decays into a baryon and a dark sector anti-baryon ($ψ_D$) with branching fractions accessible at $B$ factories. We present a search for $B \rightarrow Λψ_D$ decays using data collected by the $BABAR$ experiment at SLAC. This reaction is identified by fully reconstructing the accompanying $B$ meson and requiring the presence of a single $Λ$ baryon in the remaining particles. No significant signal is observed, and bounds on the $B \rightarrow Λψ_D$ branching fraction are derived in the range $0.13 - 5.2\times 10^{-5}$ for $1.0 < m_{ψ_D} < 4.2$ GeV/$c^{2}$. These results set strong constraints on the parameter space allowed by the theory.
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Les sujets associés
Particle physics theoretical and experimental studiesDark Matter and Cosmic PhenomenaComputational Physics and Python Applications