Author: "E. P. Solodov" / Publisher: american physical society (aps) - Searchworks@Jio Institute Digital Library Search Results

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443 results on '"E. P. Solodov"'

1. Light meson spectroscopy from Dalitz plot analyses of ηc decays to η′K+K− , η′π+π− , and ηπ+π− produced in two-photon interactions

Author: Z. C. Huard, U. Mallik, Yu. I. Skovpen, T. S. Miyashita, N. Neri, F. Anulli, E. Grauges, G. R. Bonneaud, Mario Giorgi, J. Dorfan, E. Fioravanti, F. Palombo, T. Lueck, Alessandro Gaz, B. N. Ratcliff, G. J. King, Elisa Manoni, F. Di Lodovico, A. M. Rossi, M. Verderi, N. Arnaud, J. L. Ritchie, L. M. Cremaldi, R. Y. So, A. Roodman, M. Rotondo, D. J. Payne, J. W. Gary, M. Ebert, S. H. Robertson, S. Bettarini, R. M. Seddon, F. Ferroni, R. Cenci, G. De Nardo, A. J. Bevan, Herbert Koch, Crisostomo Sciacca, D. Aston, A. Zallo, J. B. Kim, G. Rizzo, P. F. Harrison, D. G. Hitlin, W. J. Wisniewski, N. Tasneem, M. Fritsch, B. T. Meadows, G. Raven, K. Griessinger, S. M. Spanier, Tim Adye, A. Oyanguren, Stephen Robert Wagner, Aidan Randle-Conde, R. D. Kass, R. C. Field, F. Forti, K. R. Schubert, S. Passaggio, M. D. Sokoloff, P. R. Burchat, Yu. G. Kolomensky, G. Finocchiaro, J. P. Lees, Simon Akar, M. S. Alam, R. Prepost, J. M. Roney, C. Hast, S. Luitz, D. J. Lange, S. Martellotti, G. Piredda, W. Panduro Vazquez, D. E. Hutchcroft, Babar, J. Ocariz, I. M. Peruzzi, J. G. Smith, D. B. MacFarlane, H. A. Neal, G. Wormser, A. Calcaterra, C. Bünger, Maurizio Biasini, D. R. Muller, G. Casarosa, T. Leddig, Tamara Vazquez Schroeder, J. M. Izen, P. Ongmongkolkul, B. Bhuyan, B. Oberhof, V. E. Blinov, J. Cochran, E. A. Kravchenko, M. Piccolo, W. S. Lockman, B. G. Fulsom, T. J. Gershon, G. Vasseur, S. I. Serednyakov, F. Bianchi, I. M. Nugent, R. Cheaib, T. S. Mattison, C. Cartaro, Y. B. Li, Owen Rosser Long, D. W. G. S. Leith, G. Batignani, S. J. Sekula, M. R. Convery, A. Jawahery, V. Santoro, B. G. Pushpawela, W. Dunwoodie, Marco Bomben, S. Dittrich, D. S. Chao, R. Waldi, R. Gorodeisky, D. N. Brown, F. F. Wilson, Douglas Wright, D. A. Roberts, L. Zani, J. A. Ernst, L. Sun, T. E. Latham, M. Carpinelli, V. B. Golubev, C. P. Jessop, G. Calderini, Martino Margoni, M. Davier, J. M. LoSecco, M. K. Sullivan, S. Emery, E. Ben-Haim, E. A. Kozyrev, C. Touramanis, A. M. Lutz, E. Paoloni, B. Dey, M. T. Graham, A. Hafner, O. Grünberg, W. Gradl, D. X. Lin, M. Rama, J. Va’vra, Hamad Ahmed, R. Kowalewski, J. A. McKenna, A. P. Onuchin, E. M. T. Puccio, G. Cibinetto, A. V. Gritsan, Alessandro Pilloni, A. R. Buzykaev, D. R. Peimer, K. T. Flood, A. Beaulieu, M. Röhrken, A. Palano, R. Sacco, N. Guttman, G. Marchiori, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, F. De Mori, P. Patteri, L. Lanceri, A. Filippi, Denis Bernard, A. J. S. Smith, R. Cowan, B. Echenard, J. Chauveau, V. P. Druzhinin, C. Bozzi, G. Cowan, K. Honscheid, R. J. Barlow, M. Posocco, D. Gamba, M. Bellis, James R. Wilson, Brian Shuve, R. Calabrese, G. Eigen, K. Yu Todyshev, R. Stroili, F. Simonetto, J. J. Walsh, G. D. Lafferty, X. C. Lou, J. Oyang, R. Godang, Cheng Chen, H. M. Lacker, M. Heß, C. Hearty, D. J. Summers, S. Prell, I. Garzia, R. J. Sobie, V. Poireau, A. Soffer, L. Vitale, F. Martinez-Vidal, A. Lusiani, E. Luppi, P. Taras, E. P. Solodov, J. P. Coleman, A. G. Denig, C. L. Davis, R. F. Schwitters, A. M. Eisner, Peter S. Kim, M. V. Purohit, J. Albert, C. H. Cheng, R. de Sangro, S. L. Wu, E. Gabathuler, W. R. Innes, F. C. Porter, M. Chrzaszcz, C. Voß, Sw. Banerjee, G. Simi, D. Bettoni, Florian Urs Bernlochner, C. Patrignani, and V. Tisserand
Subjects: Physics, Meson, 010308 nuclear & particles physics, Branching fraction, Glueball, Electron–positron annihilation, Resonance, Dalitz plot, 01 natural sciences, Crystallography, 0103 physical sciences, 010306 general physics, Spectroscopy, Scalar meson
Abstract: We study the processes γ γ → η c → η ′ K + K - , η ′ π + π - , and η π + π - using a data sample of 519 fb - 1 recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e + e - collider at center-of-mass energies at and near the ϒ ( n S ) ( n = 2 , 3, 4) resonances. This is the first observation of the decay η c → η ′ K + K - and we measure the branching fraction Γ ( η c → η ′ K + K - ) / ( Γ ( η c → η ′ π + π - ) = 0.644 ± 0.03 9 stat ± 0.03 2 sys . Significant interference is observed between γ γ → η c → η π + π - and the nonresonant two-photon process γ γ → η π + π - . A Dalitz plot analysis is performed of η c decays to η ′ K + K - , η ′ π + π - , and η π + π - . Combined with our previous analysis of η c → K K ¯ π , we measure the K 0 * ( 1430 ) parameters and the ratio between its η ′ K and π K couplings. The decay η c → η ′ π + π - is dominated by the f 0 ( 2100 ) resonance, also observed in J / ψ radiative decays. A new a 0 ( 1700 ) → η π resonance is observed in the η c → η π + π - channel. We also compare η c decays to η and η ′ final states in association with scalar mesons as they relate to the identification of the scalar glueball.
Published: 2021

2. Study of the reactions e+e−→2(π+π−)π0π0π0 and 2(π+π−)π0π0η at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Author: R. Cenci, A. Zallo, J. B. Kim, M. Fritsch, E. Grauges, Mario Giorgi, A. V. Gritsan, D. B. MacFarlane, C. H. Cheng, Simon Akar, R. Prepost, E. A. Kravchenko, J. L. Ritchie, G. Vasseur, K. T. Flood, B. N. Ratcliff, Z. C. Huard, Y. I. Skovpen, A. Calcaterra, R. de Sangro, J. Va’vra, M. Röhrken, L. M. Cremaldi, A. Filippi, R. Cowan, R. Sacco, M. Ebert, C. L. Davis, A. Palano, P. Ongmongkolkul, Marco Bomben, G. J. King, N. Tasneem, James R. Wilson, F. Simonetto, S. Banerjee, P. Taras, E. P. Solodov, M. Piccolo, M. Hess, Brian Shuve, R. Calabrese, G. Batignani, F. Anulli, Aidan Randle-Conde, G. Simi, D. G. Hitlin, P. Patteri, P. F. Harrison, V. P. Druzhinin, C. Bozzi, G. Cowan, K. Honscheid, Alessandro Gaz, E. Ben-Haim, J. Oyang, G. Eigen, Alessandro Pilloni, Cheng Chen, R. J. Barlow, J. J. Walsh, S. H. Robertson, M. Posocco, D. R. Peimer, R. Gorodeisky, V. B. Golubev, J. Ocariz, Crisostomo Sciacca, D. Aston, N. Guttman, F. Forti, D. A. Roberts, G. Rizzo, B. Echenard, Douglas Wright, Herbert Koch, M. Rotondo, L. Zani, V. E. Blinov, A. M. Lutz, R. Cheaib, H. A. Neal, G. Casarosa, D. X. Lin, R. Waldi, M. Rama, J. P. Coleman, D. Gamba, M. Bellis, G. De Nardo, X. C. Lou, J. A. McKenna, M. T. Graham, A. Hafner, E. Gabathuler, W. R. Innes, C. Hearty, F. C. Porter, J. M. LoSecco, T. E. Latham, K. Griessinger, G. Marchiori, G. Wormser, M. Carpinelli, C. Voss, B. Dey, J. M. Izen, A. Oyanguren, W. Gradl, E. M. T. Puccio, D. J. Summers, J. P. Lees, G. D. Lafferty, D. W. G. S. Leith, S. Prell, Hamad Ahmed, R. Stroili, R. Faccini, I. Garzia, F. De Mori, J. Cochran, M. Chrzaszcz, F. Ferrarotto, A. J. Lankford, B. Bhuyan, F. Le Diberder, G. Calderini, A. R. Buzykaev, V. Santoro, B. G. Fulsom, R. J. Sobie, V. Poireau, A. Beaulieu, L. Vitale, Denis Bernard, Peter S. Kim, F. Martinez-Vidal, A. J. S. Smith, Y. B. Li, A. Soffer, A. M. Rossi, R. C. Field, L. Lanceri, W. Dunwoodie, S. Luitz, C. P. Jessop, E. Fioravanti, A. Lusiani, Martino Margoni, W. J. Wisniewski, F. Palombo, T. Lueck, E. Luppi, J. Chauveau, Maurizio Biasini, G. Finocchiaro, D. R. Muller, M. K. Sullivan, R. Godang, A. Roodman, Tamara Vazquez Schroeder, C. Cartaro, H. M. Lacker, R. M. Seddon, M. S. Alam, Owen Rosser Long, B. G. Pushpawela, F. Ferroni, So R. Y., A. G. Denig, Tim Adye, R. D. Kass, J. A. Ernst, L. Sun, B. Oberhof, Stephen Robert Wagner, B. T. Meadows, S. Passaggio, K. R. Schubert, S. Martellotti, R. F. Schwitters, R. Kowalewski, G. Raven, M. D. Sokoloff, C. Bünger, I. M. Nugent, K. Y. Todyshev, P. R. Burchat, D. S. Chao, M. Davier, S. J. Sekula, A. Jawahery, E. A. Kozyrev, A. P. Onuchin, G. Cibinetto, C. Hast, D. J. Lange, G. Piredda, W. Panduro Vazquez, A. M. Eisner, T. J. Gershon, M. V. Purohit, G. R. Bonneaud, J. Dorfan, J. Albert, Elisa Manoni, M. Verderi, N. Arnaud, E. Paoloni, I. M. Peruzzi, J. W. Gary, S. I. Serednyakov, F. Bianchi, S. Dittrich, Wu S. L., Y. G. Kolomensky, C. Touramanis, O. Grünberg, J. M. Roney, J. G. Smith, U. Mallik, T. S. Miyashita, N. Neri, S. Bettarini, A. J. Bevan, S. M. Spanier, D. E. Hutchcroft, T. Leddig, F. Di Lodovico, W. S. Lockman, M. R. Convery, D. J. Payne, T. S. Mattison, D. N. Brown, F. F. Wilson, S. Emery, D. Bettoni, Florian Urs Bernlochner, C. Patrignani, and V. Tisserand
Subjects: Physics, 010308 nuclear & particles physics, 0103 physical sciences, Hadron, Mass spectrum, Analytical chemistry, Invariant mass, Center of mass, State (functional analysis), 010306 general physics, 01 natural sciences, Luminosity
Abstract: Author(s): Lees, JP; Poireau, V; Tisserand, V; Grauges, E; Palano, A; Eigen, G; Brown, DN; Kolomensky, YG; Fritsch, M; Koch, H; Schroeder, T; Cheaib, R; Hearty, C; Mattison, TS; McKenna, JA; So, RY; Blinov, VE; Buzykaev, AR; Druzhinin, VP; Golubev, VB; Kozyrev, EA; Kravchenko, EA; Onuchin, AP; Serednyakov, SI; Skovpen, YI; Solodov, EP; Todyshev, KY; Lankford, AJ; Dey, B; Gary, JW; Long, O; Eisner, AM; Lockman, WS; Panduro Vazquez, W; Chao, DS; Cheng, CH; Echenard, B; Flood, KT; Hitlin, DG; Kim, J; Li, Y; Lin, DX; Miyashita, TS; Ongmongkolkul, P; Oyang, J; 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; Shuve, BJ; Lacker, HM; Bhuyan, B; Mallik, U; Chen, C; Cochran, J; Prell, S; Gritsan, AV; Arnaud, N; Davier, M | Abstract: We study the processes e+e-→2(π+π-)π0π0π0γ and 2(π+π-)π0π0ηγ in which an energetic photon is radiated from the initial state. The data were collected with the BABAR detector at SLAC. About 14 000 and 4700 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469 fb-1. The invariant mass of the hadronic final state defines the effective e+e- center-of-mass energy. The center-of-mass energies range from threshold to 4.5 GeV. From the mass spectra, the first ever measurements of the e+e-→2(π+π-)π0π0π0 and the e+e-→2(π+π-)π0π0η cross sections are performed. The contributions from ωπ+π-π0π0, η2(π+π-), and other intermediate states are presented. We observe the J/ψ and ψ(2S) in most of these final states and measure the corresponding branching fractions, many of them for the first time.
Published: 2021

3. Precision Measurement of the Ratio B(ϒ(3S)→τ+τ−)/B(ϒ(3S)→μ+μ−)

Author: J. Dorfan, N. Tasneem, B. N. Ratcliff, Aidan Randle-Conde, Biplab Dey, M. Hess, Z. C. Huard, W. Panduro Vazquez, C. H. Cheng, F. Simonetto, R. de Sangro, A. Filippi, S. Bettarini, Roberto Calabrese, C. H. Chen, L. M. Cremaldi, R. Cowan, J. Ocariz, S. M. Spanier, Y. Li, A. Roodman, R. M. Seddon, I. M. Peruzzi, E. Fioravanti, Vladimir Blinov, F. Bianchi, S. Dittrich, S. Akar, W. S. Lockman, E. Ben-Haim, A. G. Denig, D. G. Hitlin, J. W. Gary, J. L. Ritchie, S. I. Serednyakov, Roland Waldi, F. Ferroni, So R. Y., M. Verderi, X. C. Lou, F. De Mori, F. Anulli, R. C. Field, R. Godang, U. Mallik, Heiko Lacker, E. Gabathuler, F. C. Porter, R. Gorodeisky, D. W. G. S. Leith, Paul Fraser Harrison, D. A. Roberts, Ju-Young Kim, N. Neri, N. Arnaud, J. M. LoSecco, G. Calderini, Stephen Robert Wagner, K. R. Schubert, M. K. Sullivan, D. Gamba, F. Forti, Alessandro Gaz, A. Hafner, E. M. T. Puccio, N. Guttman, W. Dunwoodie, A. Calcaterra, B. G. Pushpawela, C. Cartaro, G. Marchiori, Maurizio Biasini, C. Hearty, M. Chrzaszcz, A. Sibidanov, D. J. Summers, J. M. Roney, J. G. Smith, G. Wormser, Marco Bomben, S. H. Robertson, M. Fritsch, Douglas Wright, L. Zani, W. R. Innes, R. J. Sobie, M. V. Purohit, J. Albert, L. Vitale, R. Cheaib, D. Bettoni, Andrei Gritsan, James R. Wilson, S. Emery, Brian Shuve, F. Martinez-Vidal, Dominik Müller, T. Schroeder, J. J. Walsh, R. Cenci, A. Zallo, A. M. Rossi, F. Di Lodovico, D. J. Payne, V. Poireau, Owen Rosser Long, M. Piccolo, Joseph Izen, B. Echenard, D. Bernard, Florian Urs Bernlochner, D. N. Brown, Hamad Ahmed, F. Palombo, T. Lueck, D. E. Hutchcroft, J. A. Ernst, W. Gradl, Abner Soffer, Herbert Koch, M. T. Graham, T. Leddig, P. Ongmongkolkul, L. Lanceri, G. D. Lafferty, A. P. Onuchin, L. Sun, Eleonora Luppi, I. Garzia, K. Y. Todyshev, G. Batignani, J. Oyang, C. Patrignani, G. Rizzo, V. Tisserand, Colin Jessop, G. Eigen, G. Finocchiaro, D. X. Lin, D. B. MacFarlane, M. Rama, Adrian John Bevan, W. J. Wisniewski, R. Prepost, J. Chauveau, G. J. King, J. A. McKenna, S. Prell, T. E. Latham, K. Griessinger, E. Paoloni, Yuri Skovpen, F. F. Wilson, James H Cochran, J. P. Lees, S. Martellotti, M. Carpinelli, B. Oberhof, M. Rotondo, T. S. Mattison, B. T. Meadows, V. Santoro, A. Lusiani, G. De Nardo, G. Vasseur, K. T. Flood, M. Röhrken, G. Raven, M. D. Sokoloff, V. P. Druzhinin, Alessandro Pilloni, D. R. Peimer, A. M. Eisner, I. M. Nugent, R. Stroili, P. R. Burchat, C. Hast, D. J. Lange, G. Piredda, Sw. Banerjee, D. S. Chao, G. R. Bonneaud, E. Grauges, Mario Giorgi, M. Davier, R. Sacco, T. J. Gershon, P. Taras, Gabriele Simi, C. L. Davis, A. J.S. Smith, R. Kowalewski, J. P. Coleman, E. P. Solodov, T. S. Miyashita, R. F. Schwitters, Elisa Manoni, D. Aston, C. Bünger, E. A. Kravchenko, A. Oyanguren, Crisostomo Sciacca, M. Bellis, C. Touramanis, O. Grünberg, A. Jawahery, Martino Margoni, G. Cibinetto, E. A. Kozyrev, C. Voss, P. C. Kim, Tim Adye, R. D. Kass, B. Bhuyan, B. G. Fulsom, V. B. Golubev, A. Palano, S. Luitz, P. Patteri, J. Va’vra, A. M. Lutz, S. Passaggio, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, G. A. Cowan, M. Ebert, Stephen Sekula, C. Bozzi, K. Honscheid, R. J. Barlow, M. Posocco, H. A. Neal, G. Casarosa, A. R. Buzykaev, M. S. Alam, A. Beaulieu, Wu S. L., M. R. Convery, and Y. G. Kolomensky
Subjects: Physics, Particle physics, Meson, 0103 physical sciences, General Physics and Astronomy, High Energy Physics::Experiment, 010306 general physics, 01 natural sciences, Energy (signal processing), Standard Model
Abstract: We report on a precision measurement of the ratio ${\cal R}_{\tau\mu}^{\Upsilon(3S)} = {\cal B}(\Upsilon(3S)\to\tau^+\tau^-)/{\cal B}(\Upsilon(3S)\to\mu^+\mu^-)$ using data collected with the BaBar detector at the SLAC PEP-II $e^+e^-$ collider. The measurement is based on a 28 fb$^{-1}$ data sample collected at a center-of-mass energy of 10.355 GeV corresponding to a sample of 122 million $\Upsilon(3S)$ mesons. The ratio is measured to be ${\cal R}_{\tau\mu}^{\Upsilon(3S)} = 0.966 \pm 0.008_\mathrm{stat} \pm 0.014_\mathrm{syst}$ and is in agreement with the Standard Model prediction of 0.9948 within 2 standard deviations. The uncertainty in ${\cal R}_{\tau\mu}^{\Upsilon(3S)}$ is almost an order of magnitude smaller than the only previous measurement.
Published: 2020

4. Search for Rare or Forbidden Decays of the D0 Meson

Author: T. E. Latham, M. Carpinelli, J. Ocariz, J. W. Gary, V. B. Golubev, Alessandro Pilloni, E. Grauges, Mario Giorgi, Elisa Manoni, N. Tasneem, Yu G. Kolomensky, D. Aston, James R. Wilson, Brian Shuve, R. Calabrese, D. R. Peimer, A. Calcaterra, J. M. Roney, C. Cartaro, Aidan Randle-Conde, J. G. Smith, S. Bettarini, J. L. Ritchie, J. M. LoSecco, Marco Bomben, C. H. Chen, S. M. Spanier, D. Bettoni, Colin Jessop, R. Prepost, D. B. MacFarlane, M. Rama, A. M. Rossi, Joseph Izen, Z. C. Huard, W. Panduro Vazquez, C. Voss, L. M. Cremaldi, J. A. McKenna, H. A. Neal, G. Casarosa, W. R. Innes, W. S. Lockman, A. G. Denig, A. Oyanguren, F. Di Lodovico, D. J. Payne, E. A. Kravchenko, M. Verderi, S. Martellotti, C. Hearty, F. Anulli, B. T. Meadows, G. Raven, V. Poireau, Alessandro Gaz, M. Piccolo, D. J. Summers, M. D. Sokoloff, P. R. Burchat, Abner Soffer, G. Eigen, M. Fritsch, P. C. Kim, Crisostomo Sciacca, G. Rizzo, J. J. Walsh, W. J. Wisniewski, G. Vasseur, K. T. Flood, R. Kowalewski, W. Dunwoodie, U. Mallik, S. H. Robertson, S. Emery, G. Batignani, G. J. King, A. R. Buzykaev, M. S. Alam, D. G. Hitlin, E. A. Kozyrev, R. Cenci, C. Touramanis, E. Fioravanti, A. Zallo, Florian Urs Bernlochner, F. Palombo, T. Lueck, I. M. Nugent, B. G. Pushpawela, N. Neri, R. J. Sobie, L. Vitale, R. Sacco, Herbert Koch, D. S. Chao, A. Beaulieu, D. N. Brown, Douglas Wright, L. Zani, F. Martinez-Vidal, Dominik Müller, M. T. Graham, O. Grünberg, K. Griessinger, M. V. Purohit, J. P. Lees, J. Albert, R. C. Field, M. Davier, A. Roodman, R. M. Seddon, E. Paoloni, T. S. Miyashita, G. D. Lafferty, C. Patrignani, A. J.S. Smith, M. Ebert, E. Luppi, D. E. Hutchcroft, Stephen Sekula, R. Gorodeisky, D. A. Roberts, Roland Waldi, F. Ferroni, T. S. Mattison, T. Leddig, So R. Y., F. De Mori, C. L. Davis, P. Ongmongkolkul, R. Godang, F. Forti, C. Hast, D. J. Lange, G. Piredda, Paul Fraser Harrison, J. Dorfan, Heiko Lacker, A. Hafner, E. M. T. Puccio, B. Bhuyan, Ju-Young Kim, Maurizio Biasini, V. Tisserand, G. R. Bonneaud, M. Rotondo, R. Cheaib, Stephen Robert Wagner, B. G. Fulsom, Tim Adye, T. J. Gershon, K. R. Schubert, V. P. Druzhinin, C. Bozzi, K. Honscheid, M. K. Sullivan, V. E. Blinov, G. De Nardo, V. Santoro, R. D. Kass, Owen Rosser Long, Yu I. Skovpen, F. Simonetto, J. A. Ernst, W. Gradl, L. Lanceri, R. J. Barlow, B. Echenard, M. Röhrken, C. H. Cheng, M. Posocco, R. Faccini, F. Ferrarotto, A. J. Lankford, E. Gabathuler, F. C. Porter, D. Bernard, G. Wormser, L. Sun, G. Finocchiaro, J. Chauveau, T. Schroeder, E. Ben-Haim, R. de Sangro, Adrian John Bevan, M. Hess, F. Le Diberder, D. W. G. S. Leith, X. C. Lou, G. A. Cowan, G. Calderini, D. Gamba, M. Bellis, F. F. Wilson, Martino Margoni, M. Chrzaszcz, A. Filippi, B. Oberhof, A. M. Eisner, Y. Li, R. Cowan, Sw. Banerjee, S. Akar, G. Simi, S. Prell, I. Garzia, N. Guttman, James H Cochran, G. Marchiori, K. Yu Todyshev, R. Stroili, A. Lusiani, P. Taras, E. P. Solodov, J. P. Coleman, R. F. Schwitters, Hamad Ahmed, Andrei Gritsan, A. M. Lutz, S. Passaggio, C. Bünger, A. Jawahery, A. P. Onuchin, G. Cibinetto, A. Palano, S. Luitz, P. Patteri, J. Va’vra, Wu S. L., M. R. Convery, B. N. Ratcliff, Biplab Dey, I. M. Peruzzi, S. I. Serednyakov, F. Bianchi, S. Dittrich, and N. Arnaud
Subjects: Physics, Particle physics, Muon, Annihilation, Meson, Electron–positron annihilation, 0103 physical sciences, General Physics and Astronomy, Electron, 010306 general physics, 01 natural sciences
Abstract: We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type D^{0}→h^{'-}h^{-}l^{'+}l^{+} and D^{0}→h^{'-}h^{+}l^{'±}l^{∓}, where h and h^{'} represent a K or π meson and l and l^{'} an electron or muon. The analysis is based on 468 fb^{-1} of e^{+}e^{-} annihilation data collected at or close to the ϒ(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the twelve modes, and we establish 90% confidence level upper limits on the branching fractions in the range (1.0-30.6)×10^{-7}. The limits are between 1 and 3 orders of magnitude more stringent than previous measurements.
Published: 2020

5. Extraction of form Factors from a Four-Dimensional Angular Analysis of B¯→D*ℓ−ν¯ℓ

Author: V. B. Golubev, T. E. Latham, M. Carpinelli, D. B. MacFarlane, M. Rama, M. Rotondo, G. De Nardo, M. Röhrken, J. L. Ritchie, W. R. Innes, R. Y. So, A. Roodman, R. Sacco, Yu G. Kolomensky, J. P. Lees, R. M. Seddon, A. J.S. Smith, Roland Waldi, F. Ferroni, J. Dorfan, N. Tasneem, V. Santoro, Simon Akar, C. Bünger, J. J. Walsh, E. A. Kozyrev, B. T. Meadows, G. Raven, Paul Fraser Harrison, M. D. Sokoloff, P. R. Burchat, H. A. Neal, G. Casarosa, W. J. Wisniewski, D. N. Brown, Ju-Young Kim, Stephen Robert Wagner, Aidan Randle-Conde, G. R. Bonneaud, B. Bhuyan, A. Jawahery, R. Kowalewski, P. Ongmongkolkul, A. P. Onuchin, B. G. Fulsom, G. J. King, G. Cibinetto, M. K. Sullivan, S. Martellotti, C. H. Cheng, James R. Wilson, Andrei Gritsan, R. Gorodeisky, D. A. Roberts, V. Poireau, A. Hafner, E. M. T. Puccio, R. de Sangro, S. L. Wu, M. Piccolo, I. M. Nugent, R. Calabrese, G. Batignani, Crisostomo Sciacca, G. Rizzo, G. D. Lafferty, E. Ben-Haim, D. S. Chao, A. M. Lutz, A. R. Buzykaev, M. S. Alam, M. Davier, S. Passaggio, M. V. Purohit, S. H. Robertson, S. Emery, J. Albert, A. Beaulieu, J. Chauveau, F. De Mori, A. Palano, Herbert Koch, Heiko Lacker, J. M. Roney, S. Luitz, P. Patteri, J. Va’vra, A. M. Rossi, Joseph Izen, K. Griessinger, W. Dunwoodie, J. Ocariz, E. Fioravanti, J. G. Smith, G. Eigen, Florian Urs Bernlochner, F. Palombo, T. Lueck, M. Ebert, K. R. Schubert, Stephen Sekula, J. W. Gary, Abner Soffer, T. S. Miyashita, R. Cheaib, V. P. Druzhinin, C. Bozzi, K. Honscheid, V. E. Blinov, J. M. LoSecco, Z. C. Huard, W. Panduro Vazquez, F. Di Lodovico, D. J. Payne, R. J. Barlow, Tim Adye, B. G. Pushpawela, R. D. Kass, P. Taras, E. P. Solodov, M. Posocco, T. S. Mattison, Alessandro Pilloni, W. S. Lockman, D. R. Peimer, C. Hast, D. J. Lange, G. Piredda, F. Anulli, A. Filippi, J. A. McKenna, D. W. G. S. Leith, Alessandro Gaz, G. Calderini, E. Paoloni, R. Cowan, D. Gamba, J. P. Coleman, M. Bellis, Martino Margoni, T. J. Gershon, Maurizio Biasini, R. F. Schwitters, Owen Rosser Long, K. Yu Todyshev, R. Stroili, L. Sun, A. Oyanguren, span>B ar, Adrian John Bevan, F. Simonetto, S. Prell, I. Garzia, James H Cochran, A. Lusiani, C. Touramanis, C. L. Davis, X. C. Lou, R. Godang, P. C. Kim, O. Grünberg, M. Heß, M. Fritsch, R. Cenci, A. Zallo, Yu I. Skovpen, C. Hearty, Elisa Manoni, B. Echenard, D. J. Summers, D. Aston, D. Bernard, M. Bomben, R. J. Sobie, L. Vitale, F. Martinez-Vidal, Dominik Müller, span, N. Guttman, E. Luppi, M. T. Graham, Colin Jessop, R. Prepost, I. M. Peruzzi, G. Marchiori, E. A. Kravchenko, S. I. Serednyakov, G. Vasseur, K. T. Flood, F. Bianchi, J. A. Ernst, Douglas Wright, S. Dittrich, E. Gabathuler, F. C. Porter, E. Grauges, L. Zani, D. E. Hutchcroft, T. Leddig, W. Gradl, Mario Giorgi, R. Faccini, M. Chrzaszcz, M. R. Convery, C. Voß, F. Ferrarotto, A. J. Lankford, F. Le Diberder, A. M. Eisner, L. Lanceri, B. N. Ratcliff, Sw. Banerjee, Biplab Dey, G. Simi, Hamad Ahmed, D. Bettoni, N. Arnaud, A. Calcaterra, C. Cartaro, G. Finocchiaro, C. Patrignani, V. Tisserand, A. G. Denig, S. Bettarini, F. F. Wilson, B. Oberhof, G. A. Cowan, C. H. Chen, S. M. Spanier, G. Wormser, Y. Li, M. Verderi, T. Schroeder, U. Mallik, N. Neri, L. M. Cremaldi, D. G. Hitlin, R. C. Field, and F. Forti
Subjects: Physics, Quantum chromodynamics, Semileptonic decay, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Crossing, Form factor (quantum field theory), General Physics and Astronomy, 01 natural sciences, 0103 physical sciences, High Energy Physics::Experiment, B meson, 010306 general physics
Abstract: An angular analysis of the decay B[over ¯]→D^{*}l^{-}ν[over ¯]_{l}, l∈{e,μ}, is reported using the full e^{+}e^{-} collision data set collected by the BABAR experiment at the ϒ(4S) resonance. One B meson from the ϒ(4S)→BB[over ¯] decay is fully reconstructed in a hadronic decay mode, which constrains the kinematics and provides a determination of the neutrino momentum vector. The kinematics of the semileptonic decay is described by the dilepton mass squared, q^{2}, and three angles. The first unbinned fit to the full four-dimensional decay rate in the standard model is performed in the so-called Boyd-Grinstein-Lebed approach, which employs a generic q^{2} parametrization of the underlying form factors based on crossing symmetry, analyticity, and QCD dispersion relations for the amplitudes. A fit using the more model-dependent Caprini-Lellouch-Neubert (CLN) approach is performed as well. Our form factor shapes show deviations from previous fits based on the CLN parametrization. The latest form factors also provide an updated prediction for the branching fraction ratio R(D^{*})≡B(B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]→D^{*}l^{-}ν[over ¯]_{l})=0.253±0.005. Finally, using the well-measured branching fraction for the B[over ¯]→D^{*}l^{-}ν[over ¯]_{l} decay, a value of |V_{cb}|=(38.36±0.90)×10^{-3} is obtained that is consistent with the current world average for exclusive B[over ¯]→D^{(*)}l^{-}ν[over ¯]_{l} decays and remains in tension with the determination from inclusive semileptonic B decays to final states with charm.
Published: 2019

6. Observation of the Decay D0→K−π+e+e−

Author: C. Bünger, Stephen Sekula, A. Oyanguren, A. Jawahery, C. Bozzi, J. Chauveau, F. De Mori, K. Honscheid, E. A. Kozyrev, N. Tasneem, Heiko Lacker, Aidan Randle-Conde, R. J. Barlow, G. R. Bonneaud, R. Cenci, C. Touramanis, A. Zallo, Florian Urs Bernlochner, G. Cibinetto, B. Bhuyan, F. Palombo, T. Lueck, B. G. Fulsom, E. P. Solodov, T. S. Miyashita, S. Bettarini, S. Prell, O. Grünberg, D. W. G. S. Leith, Maurizio Biasini, M. Posocco, G. Calderini, James H Cochran, J. L. Ritchie, I. M. Peruzzi, R. Gorodeisky, D. A. Roberts, S. I. Serednyakov, A. G. Denig, K. R. Schubert, Owen Rosser Long, H. A. Neal, G. Casarosa, A. M. Rossi, F. Bianchi, A. Lusiani, V. P. Druzhinin, V. Poireau, T. S. Mattison, V. B. Golubev, G. Wormser, J. A. Ernst, W. Gradl, A. Palano, T. Schroeder, A. Hafner, Joseph Izen, L. Lanceri, S. Emery, R. Y. So, M. Bellis, S. Dittrich, C. Hearty, P. Ongmongkolkul, C. Hast, D. J. Lange, G. Piredda, W. J. Wisniewski, E. M. T. Puccio, A. R. Buzykaev, M. S. Alam, M. T. Graham, Eleonora Luppi, M. Piccolo, A. P. Onuchin, A. Beaulieu, S. Martellotti, M. Carpinelli, L. M. Cremaldi, J. M. Roney, L. Sun, T. J. Gershon, B. Echenard, James R. Wilson, G. Batignani, Z. C. Huard, W. Panduro Vazquez, G. J. King, S. Luitz, D. Bernard, P. C. Kim, M. V. Purohit, D. J. Summers, P. Patteri, D. G. Hitlin, W. R. Innes, R. F. Schwitters, J. Va’vra, E. A. Kravchenko, J. Albert, A. Filippi, Elisa Manoni, Colin Jessop, R. Prepost, D. Aston, J. G. Smith, R. C. Field, E. Ben-Haim, Adrian John Bevan, F. Forti, W. S. Lockman, Crisostomo Sciacca, F. Anulli, W. Dunwoodie, R. Cowan, J. Dorfan, J. J. Walsh, Y. Li, A. M. Eisner, I. M. Nugent, Alessandro Gaz, A. Calcaterra, i> ar, B. G. Pushpawela, Tim Adye, R. Sacco, D. N. Brown, A. M. Lutz, R. D. Kass, M. Bomben, R. J. Sobie, G. Finocchiaro, Sw. Banerjee, C. H. Cheng, T. E. Latham, S. H. Robertson, L. Vitale, F. Di Lodovico, G. Eigen, R. de Sangro, S. Passaggio, S. L. Wu, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Martinez-Vidal, C. Cartaro, Dominik Müller, J. P. Lees, D. J. Payne, Herbert Koch, F. Le Diberder, G. D. Lafferty, N. Arnaud, R. Kowalewski, M. Rotondo, F. F. Wilson, M. R. Convery, A. J.S. Smith, Yu. I. Skovpen, G. De Nardo, Abner Soffer, D. S. Chao, B. Oberhof, M. Röhrken, Simon Akar, Yu G. Kolomensky, K. Griessinger, K. Yu. Todyshev, B. N. Ratcliff, M. Davier, V. Santoro, B. T. Meadows, G. Vasseur, A. Roodman, G. A. Cowan, Douglas Wright, K. T. Flood, G. Raven, R. Godang, R. M. Seddon, M. D. Sokoloff, E. Fioravanti, L. Zani, P. R. Burchat, E. Paoloni, R. Stroili, Roland Waldi, P. Taras, Alessandro Pilloni, F. Ferroni, D. R. Peimer, Roberto Calabrese, D. B. MacFarlane, D. Gamba, M. Rama, Paul Fraser Harrison, J. A. McKenna, Ju-Young Kim, Stephen Robert Wagner, Hamad Ahmed, J. Ocariz, M. K. Sullivan, N. Guttman, M. Heß, J. W. Gary, J. P. Coleman, E. Grauges, Mario Giorgi, R. Cheaib, G. Marchiori, E. Gabathuler, F. C. Porter, span> B, F. Simonetto, J. M. LoSecco, B. Dey, C. H. Chen, X. C. Lou, S. M. Spanier, Martino Margoni, M. Chrzaszcz, C. Voß, Vladimir Blinov, D. Bettoni, Andrei Gritsan, I. Garzia, D. E. Hutchcroft, C. Patrignani, G. Rizzo, V. Tisserand, T. Leddig, M. Verderi, U. Mallik, N. Neri, M. Fritsch, Gabriele Simi, C. L. Davis, and M. Ebert
Subjects: Physics, Particle physics, Annihilation, Branching fraction, 0103 physical sciences, General Physics and Astronomy, Resonance, Invariant mass, 010306 general physics, 01 natural sciences, Energy (signal processing), Standard Model
Abstract: We report the observation of the rare charm decay D^{0}→K^{-}π^{+}e^{+}e^{-}, based on 468 fb^{-1} of e^{+}e^{-} annihilation data collected at or close to the center-of-mass energy of the ϒ(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. We find the branching fraction in the invariant mass range 0.675
Published: 2019

7. Study of the reactions e+e−→π+π−π0π0π0 and π+π−π0π0η at center-of-mass energies from threshold to 4.35 GeV using initial-state radiation

Author: J. P. Lees, V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, D. N. Brown, Yu. G. Kolomensky, M. Fritsch, H. Koch, T. Schroeder, R. Cheaib, C. Hearty, T. S. Mattison, J. A. McKenna, R. Y. So, V. E. Blinov, A. R. Buzykaev, V. P. Druzhinin, V. B. Golubev, E. A. Kozyrev, E. A. Kravchenko, A. P. Onuchin, S. I. Serednyakov, Yu. I. Skovpen, E. P. Solodov, K. Yu. Todyshev, A. J. Lankford, B. Dey, J. W. Gary, O. Long, A. M. Eisner, W. S. Lockman, W. Panduro Vazquez, D. S. Chao, C. H. Cheng, B. Echenard, K. T. Flood, D. G. Hitlin, J. Kim, Y. Li, D. X. Lin, S. Middleton, T. S. Miyashita, P. Ongmongkolkul, J. Oyang, F. C. Porter, M. Röhrken, Z. Huard, B. T. 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, V. Santoro, A. Calcaterra, R. de Sangro, G. Finocchiaro, S. Martellotti, P. Patteri, I. M. Peruzzi, M. Piccolo, M. Rotondo, A. Zallo, S. Passaggio, C. Patrignani, B. J. Shuve, H. M. Lacker, B. Bhuyan, U. Mallik, C. Chen, J. Cochran, S. Prell, A. V. Gritsan, N. Arnaud, M. Davier, F. Le Diberder, A. M. Lutz, G. Wormser, D. J. Lange, D. M. Wright, J. P. Coleman, E. Gabathuler, D. E. Hutchcroft, D. J. Payne, C. Touramanis, A. J. Bevan, F. Di Lodovico, R. Sacco, G. Cowan, Sw. Banerjee, C. L. Davis, A. G. Denig, W. Gradl, K. Griessinger, A. Hafner, K. R. Schubert, R. J. Barlow, G. D. Lafferty, R. Cenci, A. Jawahery, D. A. Roberts, R. Cowan, S. H. Robertson, R. M. Seddon, N. Neri, F. Palombo, L. Cremaldi, R. Godang, D. J. Summers, P. Taras, G. De Nardo, C. Sciacca, G. Raven, C. P. Jessop, J. M. LoSecco, K. Honscheid, R. Kass, A. Gaz, M. Margoni, M. Posocco, G. Simi, F. Simonetto, R. Stroili, S. Akar, E. Ben-Haim, M. Bomben, G. R. Bonneaud, G. Calderini, J. Chauveau, G. Marchiori, J. Ocariz, M. Biasini, E. Manoni, A. Rossi, G. Batignani, S. Bettarini, M. Carpinelli, G. Casarosa, M. Chrzaszcz, F. Forti, M. A. Giorgi, A. Lusiani, B. Oberhof, E. Paoloni, M. Rama, G. Rizzo, J. J. Walsh, L. Zani, A. J. S. 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, D. Aston, C. Cartaro, M. R. Convery, J. Dorfan, W. Dunwoodie, M. Ebert, R. C. Field, B. G. Fulsom, M. T. Graham, C. Hast, W. R. Innes, P. Kim, D. W. G. S. Leith, S. Luitz, D. B. MacFarlane, D. R. Muller, H. Neal, B. N. Ratcliff, A. Roodman, M. K. Sullivan, J. Va’vra, W. J. Wisniewski, M. V. Purohit, J. 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. A. Ernst, R. Gorodeisky, N. Guttman, D. R. Peimer, A. Soffer, S. M. Spanier, J. L. Ritchie, R. F. Schwitters, J. M. Izen, X. C. Lou, F. Bianchi, F. De Mori, A. Filippi, D. Gamba, L. Lanceri, L. Vitale, F. Martinez-Vidal, A. Oyanguren, J. Albert, A. Beaulieu, F. U. Bernlochner, G. J. King, R. Kowalewski, T. Lueck, C. Miller, I. M. Nugent, J. M. Roney, R. J. Sobie, T. J. Gershon, P. F. Harrison, T. E. Latham, R. Prepost, and S. L. Wu
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, 7. Clean energy, 01 natural sciences, Omega, 0103 physical sciences, Mass spectrum, Pi, Intermediate state, Invariant mass, 010306 general physics
Abstract: We study the processes $e^+e^-\to 2(\pi^+\pi^-)\pi^0\pi^0\pi^0\gamma$ and $2(\pi^+\pi^-)\pi^0\pi^0\eta\gamma$ in which an energetic photon is radiated from the initial state. The data were collected with the \babar~ detector at SLAC. About 14\,000 and 4700 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469 fb^{-1}. The invariant mass of the hadronic final state defines the effective \epem center-of-mass energy. The center-of-mass energies range from threshold to 4.5 GeV. From the mass spectra, the first ever measurements of the $e^+e^-\to 2(\pi^+\pi^-)\pi^0\pi^0\pi^0$ and the $e^+e^-\to2(\pi^+\pi^-)\pi^0\pi^0\eta$ cross sections are performed. The contributions from $\omega\pi^+\pi^-\pi^0\pi^0$, $\eta2(\pi^+\pi^-)$, and other intermediate states are presented. We observe the $J/\psi$ and $\psi(2S)$ in most of these final states and measure the corresponding branching fractions, many of them for the first time.
Published: 2018

8. First Evidence for cos2β>0 and Resolution of the Cabibbo-Kobayashi-Maskawa Quark-Mixing Unitarity Triangle Ambiguity

Author: V. B. Golubev, K. Chilikin, L. Zani, J. R. Wilson, Iki Adachi, T. S. Miyashita, Doo Young Kim, A. Palano, S. Emery, M. Feindt, J. B. Kim, K. Griessinger, D. Epifanov, A. Hafner, W. R. Innes, David Hutchcroft, O. Long, R. Cenci, Brian Meadows, J. M. Izen, M. Bellis, Eleonora Guido, H. Neal, K. Inami, H. Ye, R. Kass, S. Martellotti, D. W G S Leith, G. Schnell, E. Won, R. Pestotnik, S. Nishida, A. Calcaterra, J. P. Coleman, J. A. McKenna, T. E. Browder, J. Ocariz, M. T. Graham, F. Ferroni, R. J. Sobie, A. Roodman, S. Pardi, J. L. Ritchie, Noritaka Shimizu, Vikas Bansal, Eleonora Luppi, A. Beaulieu, Tara Nanut, T. Uglov, A. V. Gritsan, G. Wormser, A. G. Denig, Vitaly Vorobyev, B. N. Ratcliff, R. Y. So, T. Kuhr, S. R. Wagner, G. De Nardo, H. M. Lacker, M. Starič, D. Liventsev, E. Nakano, Z. Drásal, V. Savinov, D. J. Summers, C. H. Cheng, H. Ono, D. A. Roberts, S. Al Said, T. Matsuda, A. J S Smith, D. S. Chao, Vladimir Zhulanov, R. Kroeger, E. Ben-Haim, M. E. Sevior, I. S. Lee, S. J. Sekula, C. Bozzi, R. Mizuk, M. Piccolo, F. Di Lodovico, S. Uno, R. Kulasiri, T. Schroeder, A. J. Lankford, S. Sandilya, R. Godang, P. Goldenzweig, P. Pakhlov, N. Tasneem, J. Albert, G.V. Russo, J. Cochran, Yu. G. Kolomensky, H. Hayashii, J. Libby, C. Van Hulse, T. A. Shibata, Z. C. Huard, U. Tamponi, S. Passaggio, H. Miyata, B. Pal, Y. B. Li, Marcin Chrzaszcz, F. Le Diberder, Michael Sokoloff, Ray Franklin Cowan, P. C. Kim, F. U. Bernlochner, P. Patteri, Prafulla Kumar Behera, W. S. Hou, I. M. Peruzzi, B. Oberhof, F. Simonetto, J. G. Shiu, G. J. King, V. Babu, K. T. Kim, J. K. Ahn, A. Soffer, M. Z. Wang, K. Kinoshita, B. Bhuyan, N. Guttman, H. Park, A. Bozek, S. H. Kim, J. Dorfan, M. Gelb, H. Koch, Vladimir Popov, A. Zallo, S. Jia, D. N. Brown, R. Stroili, R. Ayad, K. Cho, C. Hearty, M. Iwasaki, P. K. Resmi, Marcello Rotondo, B. G. Cheon, James E. Fast, A. Kuzmin, M. Ebert, T. K. Pedlar, T. Kumita, K. Yu. Todyshevx, F. Forti, Y. Choi, K. J. Nath, E. A. Kravchenko, L. Santelj, K. H. Kang, T. Leddig, Shih-Chang Lee, D. Matvienko, C. Voß, M. Bomben, J. Haba, Dominik Müller, X. C. Lou, C. Chen, G. Finocchiaro, C. Z. Yuan, Y. Jin, A. J. Schwartz, C. H. Wang, Alberto Lusiani, Semen Eidelman, E. Grauges, L. Vitale, S. Ogawa, A. Rossi, Y. Watanabe, J. P. Lees, A. Filippi, S. E. Vahsen, G. A. Cowan, C. Bünger, C. Sciacca, R. C. Field, Gabriele Simi, G. Eigen, R. Gorodeisky, F. Martinez-Vidal, J. J. Walsh, C. Schwanda, R. Itoh, H. Ahmed, D. Cinabro, Tao Luo, F. Tenchini, Th. Müller, G. Rizzo, Y. Sakai, D. Bernard, J. Chauveau, S. I. Serednyakov, F. Palombo, S. Korpar, E. Gabathuler, T. Ferber, Tagir Aushev, C. Cartaro, Y. Onuki, A. Jawahery, M. Nayak, G. Cibinetto, M. K. Sullivan, M. Margoni, Y. Guan, A. Oyanguren, E. Waheed, R. M. Seddon, Nicola Neri, J. W. Gary, V. Gaur, W. Panduro Vazquez, Y. Iwasaki, C. Touramanis, S. Luitz, K. R. Schubert, P. Taras, S. Hirose, D. J. Payne, E. Fioravanti, Y. Li, Y. J. Kwon, V.N. Zhilich, F. Ferrarotto, E. M. T. Puccio, G. B. Mohanty, P. L. Wang, B. Golob, T. Lueck, Roland Waldi, Biplab Dey, Peter Kodys, Fergus Wilson, M. A. Giorgi, E. Paoloni, A. Zupanc, F. De Mori, A. B. Kaliyar, P. F. Harrison, H. Kichimi, D. G. Hitlin, H. K. Moon, M. R. Convery, A. Chen, F. Bianchi, G. Piredda, O. Schneider, U. Mallik, R. Cheaib, Y. Yusa, Bingran Wang, M. Röhrken, K. Senyo, J. S. Lange, V. Santoro, W. J. Wisniewski, C. Hast, W. W. Jacobs, A. M. Eisner, I. M. Nugent, M. T. Hedges, M. Carpinelli, K. Miyabayashi, I. Badhrees, M. Posocco, B. G. Fulsom, R. F. Schwitters, G. Varner, R. Mussa, A. M. Lutz, K. T. Flood, G. Casarosa, Simon Akar, M. Takizawa, Pavel Krokovny, R. Calabrese, V. E. Blinov, A. R. Buzykaev, A. Ishikawa, G. Vasseur, Roger Barlow, Ju-Young Kim, Miriam Heß, Y. Seino, S. Bettarini, R. de Sangro, M. Nakao, M. Biasini, P. Križan, G. Raven, Alexander Bondar, D. Gamba, R. Sacco, L. Cremaldi, Yu. I. Skovpen, C. P. Shen, K. Honscheid, G. Calderini, Elisa Manoni, R. Kowalewski, N. Arnaud, V.E. Shebalin, M. Heck, L. K. Li, M. V. Purohit, S. Di Carlo, D. M. Asner, K. Hayasaka, Sw. Banerjee, Soumen Paul, M. Uchida, G. Pakhlova, P. R. Burchat, G. Karyan, V. Bhardwaj, C. L. Hsu, J. A. Ernst, S. L. Wu, P. Ongmongkolkul, H. Atmacan, D. B. Macfarlane, Alessandro Pilloni, K. K. Joo, S. Dittrich, D. R. Peimer, Kiyoshi Tanida, Timothy Gershon, D. Aston, L. Li Gioi, A. Garmash, F. Anulli, Z. Doležal, J. M. Roney, Yoshinobu Unno, S. Zakharov, M. Lubej, G. Inguglia, V. Zhukova, M. Merola, A. K. Giri, K. Sumisawa, S. M. Spanier, G. Batignani, M. Masuda, C. L. Davis, M. Fritsch, A. P. Onuchin, L. Sun, Adrian John Bevan, Somnath Choudhury, Leo Piilonen, O. Seon, Frank Simon, D. J. Lange, Matteo Rama, James G. Smith, V. P. Druzhinin, D. M. Wright, M. S. Alam, E. Solovieva, R. Prepost, N. Dash, M. Rozanska, D. Kotchetkov, T. Adye, A. Randle-Conde, T. Julius, M. Verderi, R. Faccini, V. Poireau, T. Sumiyoshi, J. M. Losecco, G. Marchiori, F. C. Porter, Martin Ritter, T. Sanuki, S. Cunliffe, J. Va'Vra, W. S. Lockman, M. Salehi, H. Aihara, George Lafferty, C. P. Jessop, T. Hara, T. Mori, Oliver Grünberg, G. R. Bonneaud, N. K. Nisar, I. Pavelkin, D. Bettoni, Z. P. Zhang, S. Prell, B. G. Pushpawela, A. Gaz, S. H. Robertson, L. Lanceri, Jyoti Prakash Biswal, B. Echenard, M. Davier, J. MacNaughton, A. M. Bakich, W. Dunwoodie, D. Červenkov, Rocky Bala Garg, T. S. Mattison, W. Gradl, E. P. Solodov, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, and M. Bračko
Subjects: Quark, Physics, Particle physics, Unitarity, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, General Physics and Astronomy, Dalitz plot, 01 natural sciences, B-factory, KEKB, 0103 physical sciences, CP violation, 010306 general physics
Abstract: We present first evidence that the cosine of the CP-violating weak phase 2β is positive, and hence exclude trigonometric multifold solutions of the Cabibbo-Kobayashi-Maskawa (CKM) Unitarity Triangle using a time-dependent Dalitz plot analysis of B^{0}→D^{(*)}h^{0} with D→K_{S}^{0}π^{+}π^{-} decays, where h^{0}∈{π^{0},η,ω} denotes a light unflavored and neutral hadron. The measurement is performed combining the final data sets of the BABAR and Belle experiments collected at the ϒ(4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471±3)×10^{6}BB[over ¯] pairs recorded by the BABAR detector and (772±11)×10^{6}BB[over ¯] pairs recorded by the Belle detector. The results of the measurement are sin2β=0.80±0.14(stat)±0.06(syst)±0.03(model) and cos2β=0.91±0.22(stat)±0.09(syst)±0.07(model). The result for the direct measurement of the angle β of the CKM Unitarity Triangle is β=[22.5±4.4(stat)±1.2(syst)±0.6(model)]°. The measurement assumes no direct CP violation in B^{0}→D^{(*)}h^{0} decays. The quoted model uncertainties are due to the composition of the D^{0}→K_{S}^{0}π^{+}π^{-} decay amplitude model, which is newly established by performing a Dalitz plot amplitude analysis using a high-statistics e^{+}e^{-}→cc[over ¯] data sample. CP violation is observed in B^{0}→D^{(*)}h^{0} decays at the level of 5.1 standard deviations. The significance for cos2β>0 is 3.7 standard deviations. The trigonometric multifold solution π/2-β=(68.1±0.7)° is excluded at the level of 7.3 standard deviations. The measurement resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle.
Published: 2018

9. Measurement of cos2β in B0→D(*)h0 with D→KS0π+π− decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data

Author: C. Bünger, T. Matsuda, J. W. Gary, T. S. Mattison, S. H. Kim, S. J. Sekula, A. Jawahery, P. Krokovny, M. Feindt, I. Adachi, D. B. MacFarlane, C. Hearty, P. Goldenzweig, K. H. Kang, K. Cho, S. Sandilya, A. G. Denig, R. F. Schwitters, M. Rozanska, D. Kotchetkov, E. Fioravanti, B. Golob, F. Palombo, T. Lueck, P. Pakhlov, J. B. Kim, K. Yu. Todyshevx, T. Leddig, D. Epifanov, N. K. Nisar, J. S. Lange, Z. C. Huard, V.N. Zhilich, Shih-Chang Lee, W. S. Lockman, M. R. Convery, D. N. Brown, A. Calcaterra, M. Z. Wang, K. Kinoshita, D. J. Summers, A. Filippi, H. Park, A. Bozek, Simon Akar, R. Prepost, R. Mussa, D. Gamba, M. Bellis, A. Ishikawa, F. De Mori, J. E. Fast, Cheng Chen, M. Starič, N. Tasneem, G.V. Russo, J. P. Coleman, F. Anulli, Alessandro Gaz, S. H. Robertson, Aidan Randle-Conde, W. S. Hou, G. J. King, Victoria Zhukova, F. F. Wilson, R. J. Sobie, L. Vitale, B. T. Meadows, P. Križan, G. Raven, Denis Bernard, S. Nishida, K. Miyabayashi, I. Badhrees, R. Ayad, James R. Wilson, V. Bhardwaj, R. Cowan, E. A. Kravchenko, Elisa Guido, J. L. Ritchie, Herbert Koch, T. K. Pedlar, A. P. Onuchin, A. Chen, S. Martellotti, F. Martinez-Vidal, Marco Bomben, M. D. Sokoloff, S. E. Vahsen, A. J. S. Smith, P. R. Burchat, R. Calabrese, C. Cartaro, M. Rotondo, V. Vorobyev, U. Mallik, I. Pavelkin, G. Schnell, D. Cinabro, K. Griessinger, M. Iwasaki, D. Matvienko, P. F. Harrison, G. Cibinetto, A. Oyanguren, E. Luppi, S. Emery, M. Merola, Peter S. Kim, T. S. Miyashita, N. Neri, G. Vasseur, E. Paoloni, D. Y. Kim, B. K. Pal, B. G. Cheon, K. T. Kim, L. M. Cremaldi, R. B. Garg, B. Bhuyan, A. V. Gritsan, Shigeki Hirose, K. T. Flood, A. M. Eisner, Y. Iwasaki, R. Godang, Tao Luo, K. Tanida, F. Di Lodovico, B. G. Fulsom, G. De Nardo, J. Chauveau, M. T. Hedges, A. B. Kaliyar, J. K. Ahn, Y. J. Kwon, G. Eigen, I. M. Nugent, V. E. Blinov, S. Bettarini, T. E. Browder, D. J. Payne, M. Ebert, A. J. Bevan, M. Röhrken, K. Chilikin, H. M. Lacker, Tara Nanut, T. Kuhr, T. A. Shibata, H. Miyata, T. Aushev, R. Sacco, A. J. Schwartz, E. Grauges, V. V. Zhulanov, G. Inguglia, O. Schneider, T. Uglov, V. Savinov, A. Palano, C. P. Jessop, S. M. Spanier, Alessandro Pilloni, J. Ocariz, R. Mizuk, Mario Giorgi, M. Heß, H. Kichimi, E. Won, M. K. Sullivan, Yu. G. Kolomensky, D. W. G. S. Leith, H. Atmacan, J. P. Lees, D. R. Peimer, H. Ono, D. G. Hitlin, Bingran Wang, S. Zakharov, Semen Eidelman, David Hutchcroft, L. Li Gioi, A. Zupanc, Wu S. L., K. Hayasaka, G. Calderini, E. Nakano, F. Simonetto, J. Va’vra, D. S. Chao, M. Davier, R. Cenci, R. Cheaib, R. Waldi, A. Zallo, S. Korpar, V. P. Druzhinin, C. Bozzi, G. Cowan, Noritaka Shimizu, J. M. LoSecco, M. V. Purohit, Douglas Wright, L. Zani, R. Gorodeisky, P. Patteri, M. Fritsch, D. A. Roberts, Yu. I. Skovpen, B. Dey, P. Ongmongkolkul, K. Honscheid, M. Piccolo, F. Forti, J. J. Walsh, R. Kroeger, M. E. Sevior, I. S. Lee, A. M. Lutz, R. J. Barlow, R. Stroili, M. T. Graham, A. Hafner, J. M. Roney, Z. Drásal, J. Albert, K. Senyo, E. M. T. Puccio, X. C. Lou, G. Batignani, V.E. Shebalin, Somnath Choudhury, N. Guttman, A. Kuzmin, J. G. Shiu, G. Wormser, K. K. Joo, Y. Unno, M. Posocco, J. G. Smith, S. Al Said, K. Inami, C. Z. Yuan, J. Cochran, E. Ben-Haim, C. Hast, M. Heck, D. J. Lange, G. Piredda, Hamad Ahmed, W. J. Wisniewski, G. Marchiori, S. Ogawa, G. D. Lafferty, Y. B. Li, H. A. Neal, V. Santoro, J. Libby, M. Lubej, W. Dunwoodie, A. M. Rossi, S. Passaggio, W. Panduro Vazquez, S. Uno, C. Schwanda, Tim Adye, V. B. Golubev, U. Tamponi, Y. Choi, K. J. Nath, G. Casarosa, L. Santelj, E. Waheed, R. D. Kass, A. Roodman, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, S. Jia, R. M. Seddon, J. M. Izen, Crisostomo Sciacca, D. Aston, M. Nayak, M. Uchida, F. Ferroni, A. R. Buzykaev, G. Rizzo, M. Rama, L. Lanceri, So R. Y., A. Beaulieu, Y. Seino, J. A. McKenna, C. H. Cheng, T. J. Gershon, D. Liventsev, Y. Jin, C. H. Wang, S. Paul, Martino Margoni, S. Pardi, T. Müller, K. Sumisawa, D. M. Asner, T. E. Latham, M. Carpinelli, Ju-Young Kim, Maurizio Biasini, D. R. Muller, G. S. Varner, R. de Sangro, Stephen Robert Wagner, Y. Yusa, K. R. Schubert, A. K. Giri, Tamara Vazquez Schroeder, R. Itoh, C. L. Davis, Elisa Manoni, Li L. K., I. M. Peruzzi, Owen Rosser Long, M. Masuda, C. B. Van Hulse, G. B. Mohanty, J. A. Ernst, S. I. Serednyakov, F. Bianchi, L. Sun, S. Dittrich, P. K. Resmi, M. Gelb, Pu Wang, R. Kowalewski, Peter Kodys, A. Garmash, W. W. Jacobs, V. Bansal, G. R. Bonneaud, J. Dorfan, S. Di Carlo, G. Karyan, P. K. Behera, M. Verderi, N. Arnaud, A.E. Bondar, M. Takizawa, C. Touramanis, Z. Doležal, O. Grünberg, P. Taras, E. P. Solodov, O. Seon, Frank Simon, Y. Sakai, S. Prell, I. Garzia, V. Poireau, A. Soffer, A. Lusiani, N. Dash, E. Solovieva, Li Y. B., R. C. Field, G. Finocchiaro, M. S. Alam, S. Cunliffe, B. Oberhof, L. E. Piilonen, G. Pakhlova, R. Kulasiri, T. Hara, T. Julius, W. Gradl, T. Mori, H. Aihara, B. N. Ratcliff, S. Luitz, F. Tenchini, T. Sumiyoshi, Martin Ritter, Z. P. Zhang, T. Sanuki, B. G. Pushpawela, Jyoti Prakash Biswal, D. Bettoni, V. Gaur, M. Nakao, B. Echenard, Florian Urs Bernlochner, J. MacNaughton, C. Patrignani, V. Tisserand, M. Bračko, A. M. Bakich, Sw. Banerjee, G. Simi, D. Červenkov, E. Gabathuler, W. R. Innes, F. C. Porter, M. Chrzaszcz, and C. Voß
Subjects: Physics, Particle physics, Unitarity, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Dalitz plot, 01 natural sciences, B-factory, KEKB, 0103 physical sciences, CP violation, 010306 general physics
Abstract: We report measurements of sin2β and cos2β using a time-dependent Dalitz plot analysis of B0→D(*)h0 with D→KS0π+π- decays, where the light unflavored and neutral hadron h0 is a π0, η, or ω meson. The analysis uses a combination of the final data sets of the BaBar and Belle experiments containing 471×106 and 772×106 BB¯ pairs collected at the ϒ(4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. We measure sin2β=0.80±0.14(stat)±0.06(syst)±0.03(model) and cos2β=0.91±0.22(stat)±0.09(syst)±0.07(model). The result for the direct measurement of the angle is β=(22.5±4.4(stat)±1.2(syst)±0.6(model))°. The last quoted uncertainties are due to the composition of the D0→KS0π+π- decay amplitude model, which is newly established by a Dalitz plot amplitude analysis of a high-statistics e+e-→cc¯ data sample as part of this analysis. We find the first evidence for cos2β>0 at the level of 3.7 standard deviations. The measurement excludes the trigonometric multifold solution π/2-β=(68.1±0.7)° at the level of 7.3 standard deviations and therefore resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle. The hypothesis of β=0° is ruled out at the level of 5.1 standard deviations, and thus CP violation is observed in B0→D(*)h0 decays. The measurement assumes no direct CP violation in B0→D(*)h0 decays.
Published: 2018

10. Measurement of the γγ→η′ transition form factor

Author: A. J S Smith, A. Randle-Conde, R. F. Schwitters, R. Cenci, R. de Sangro, M. K. Sullivan, Z. C. Huard, Gabriele Simi, J. R. Wilson, T. S. Miyashita, F. Le Diberder, C. H. Cheng, K. Yu Todyshev, V. E. Blinov, Marcin Chrzaszcz, M. Verderi, Eleonora Luppi, Yu. I. Skovpen, G. J. King, M. A. Giorgi, S. Passaggio, R. Faccini, J. M. Izen, Simon Akar, M. Bellis, T. Leddig, K. Honscheid, F. Forti, A. R. Buzykaev, C. Cartaro, D. J. Summers, A. M. Lutz, M. V. Purohit, F. Bianchi, J. W. Gary, P. Taras, A. Calcaterra, I. M. Nugent, R. Kowalewski, J. Dorfan, D. Gamba, D. J. Payne, X. C. Lou, N. Arnaud, J. P. Coleman, G. Eigen, M. Margoni, A. Soffer, R. Godang, E. Paoloni, M. Heß, D. S. Chao, G. Wormser, G. Batignani, M. R. Convery, D. B. Macfarlane, L. Lanceri, R. J. Sobie, A. Roodman, D. J. Lange, Alessandro Pilloni, D. R. Peimer, T. Schroeder, A. J. Lankford, D. Aston, W. Panduro Vazquez, Wu S. L., R. M. Seddon, E. P. Solodov, J. Chauveau, M. Posocco, S. Bettarini, R. Prepost, Y. B. Li, G. Piredda, F. Anulli, U. Mallik, M. Carpinelli, J. Va'Vra, E. Fioravanti, W. S. Lockman, Roland Waldi, So R. Y., L. Vitale, K. T. Flood, Ray Franklin Cowan, C. Chen, G. Raven, L. Zani, G. Vasseur, M. Piccolo, P. C. Kim, F. U. Bernlochner, T. Adye, J. M. Roney, S. M. Spanier, C. L. Davis, B. Echenard, M. Fritsch, K. Griessinger, G. Calderini, Alberto Lusiani, J. Ocariz, G. Casarosa, C. Hearty, Marcello Rotondo, S. Emery, M. T. Graham, B. Bhuyan, F. Simonetto, Timothy Gershon, R. Cheaib, Ju-Young Kim, M. Davier, A. Oyanguren, M. Bomben, Dominik Müller, F. Ferroni, Biplab Dey, W. J. Wisniewski, D. A. Roberts, F. Di Lodovico, Brian Meadows, E. Grauges, F. Martinez-Vidal, J. J. Walsh, Matteo Rama, A. V. Gritsan, D. Bernard, Fergus Wilson, A. G. Denig, B. N. Ratcliff, I. Garzia, James G. Smith, C. Sciacca, R. C. Field, H. Ahmed, C. Touramanis, D. N. Brown, S. Luitz, K. R. Schubert, S. I. Serednyakov, F. Palombo, V. Poireau, Thomas Latham, C. Patrignani, V. Tisserand, J. L. Ritchie, R. Calabrese, Nicola Neri, M. Biasini, T. Lueck, F. De Mori, J. M. Losecco, G. Marchiori, D. G. Hitlin, Elisa Manoni, F. C. Porter, Michael Sokoloff, J. Cochran, C. Bozzi, R. Gorodeisky, C. Hast, P. R. Burchat, G. A. Cowan, A. P. Onuchin, L. Sun, Sw. Banerjee, Yu. G. Kolomensky, P. Ongmongkolkul, E. Ben-Haim, J. A. Ernst, N. Tasneem, J. Albert, T. S. Mattison, N. Guttman, B. G. Fulsom, W. Gradl, Adrian John Bevan, F. Ferrarotto, E. M. T. Puccio, S. Dittrich, I. M. Peruzzi, M. Ebert, R. Stroili, A. Rossi, O. Long, C. Bünger, S. Martellotti, V. P. Druzhinin, D. M. Wright, G. De Nardo, H. M. Lacker, A. Jawahery, S. J. Sekula, G. Cibinetto, P. Patteri, W. Dunwoodie, M. S. Alam, H. Koch, E. A. Kozyrev, G. Finocchiaro, H. Neal, R. Kass, D. W G S Leith, A. Beaulieu, D. Bettoni, S. Prell, V. B. Golubev, B. G. Pushpawela, M. Röhrken, A. Gaz, R. Sacco, B. Oberhof, S. H. Robertson, A. Palano, E. A. Kravchenko, George Lafferty, C. P. Jessop, A. Filippi, G. Rizzo, A. Hafner, W. R. Innes, David Hutchcroft, Oliver Grünberg, G. R. Bonneaud, A. Zallo, C. Voß, J. A. McKenna, S. R. Wagner, E. Gabathuler, P. F. Harrison, A. M. Eisner, Roger Barlow, J. P. Lees, V. Santoro, and L. Cremaldi
Subjects: Physics, Range (particle radiation), 010308 nuclear & particles physics, Electron–positron annihilation, Form factor (quantum field theory), 01 natural sciences, 7. Clean energy, Measure (mathematics), law.invention, Luminosity, Nuclear physics, law, 0103 physical sciences, 010306 general physics, Collider
Abstract: We study the process e^+e^− → e^+e^−η′ in the double-tag mode and measure for the first time the γ⋆γ⋆ → η′ transition form factor F_η′(Q^2_1,Q^2_2) in the momentum-transfer range 2 < Q^2_1, Q^2_2 < 60 GeV^2. The analysis is based on a data sample corresponding to an integrated luminosity of around 469 fb^(-1) collected at the PEP-II e^+e^− collider with the BABAR detector at center-of-mass energies near 10.6 GeV.
Published: 2018

11. Search for the decay mode B0→ppp¯p¯

Author: C. Hearty, M. Rotondo, A. J. Bevan, E. Gabathuler, F. C. Porter, Tisserand, J. G. Smith, V. B. Golubev, F. Di Lodovico, Cheng Chen, B. G. Pushpawela, D. J. Payne, A. V. Gritsan, A. M. Lutz, W. S. Lockman, S. Prell, I. Garzia, E. Luppi, D. Bettoni, Sokoloff, M. Piccolo, T. S. Mattison, D. N. Brown, Wagner, C. H. Cheng, R. Calabrese, W. Gradl, M. Röhrken, Z. C. Huard, E. Grauges, U. Mallik, G. Eigen, E. Fioravanti, T. S. Miyashita, J. A. McKenna, C. Touramanis, A. Palano, K. Y. Todyshev, B. Echenard, C. Patrignani, A. Calcaterra, Tamara Vazquez Schroeder, K. T. Flood, Owen Rosser Long, R. Y. So, V. E. Blinov, A. G. Denig, J. P. Lees, R. Sacco, R. de Sangro, H. M. Lacker, D. G. Hitlin, L. Sun, J. P. Coleman, J. Cochran, Douglas Wright, D. J. Lange, David Hutchcroft, W. Panduro Vazquez, Ju-Young Kim, G. Finocchiaro, Y. I. Skovpen, P. Patteri, G. Wormser, E. P. Solodov, E. A. Kravchenko, A. R. Buzykaev, A. J. Lankford, B. T. Meadows, S. Martellotti, F. Le Diberder, A. M. Eisner, Y. B. Li, C. L. Davis, E. A. Kozyrev, Santoro, A. Zallo, Herbert Koch, A. P. Onuchin, G. Cibinetto, M. Fritsch, D. S. Chao, V. P. Druzhinin, C. Bozzi, G. Cowan, P. Ongmongkolkul, M. Davier, K. Griessinger, S. Banerjee, Poireau, S. Passaggio, Denis Bernard, B. Bhuyan, J. W. Gary, M. Verderi, N. Arnaud, I. M. Peruzzi, S. I. Serednyakov, and Y. G. Kolomensky
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Detector, 01 natural sciences, Standard deviation, law.invention, Distribution (mathematics), law, 0103 physical sciences, 010306 general physics, Collider, Energy (signal processing), Bar (unit)
Abstract: A search is presented for the four-body decay B0→ppp¯p¯ in a sample of 471 million BB¯ pairs collected with the BABAR detector, operated at the SLAC PEP-II asymmetric-energy e+e- collider. The center-of-mass energy is 10.58 GeV. From a fit to the distribution of the energy-substituted mass mES, the branching fraction B(B0→ppp¯p¯)=(1.1±0.5±0.2)×10-7 is extracted, where the first uncertainty is statistical and the second is systematic. The significance of the signal, including the systematic uncertainty, is 2.9 standard deviations. The upper limit on the branching fraction is determined to be 2.0×10-7 at 90% confidence level.
Published: 2018

12. Measurement of the spectral function for the τ−→K−KSντ decay

Author: G. J. King, D. B. Macfarlane, B. Bhuyan, J. Dorfan, Z. C. Huard, J. M. Izen, E. Grauges, M. Bellis, F. Martinez-Vidal, J. J. Walsh, V. B. Golubev, M. Röhrken, George Lafferty, C. P. Jessop, V. E. Blinov, Matteo Rama, A. V. Gritsan, A. Palano, James G. Smith, H. Neal, R. Kass, P. Ongmongkolkul, A. Hafner, W. R. Innes, David Hutchcroft, D. W G S Leith, D. Gamba, A. Beaulieu, J. Va'Vra, Oliver Grünberg, G. R. Bonneaud, W. S. Lockman, L. Lanceri, J. A. McKenna, S. R. Wagner, A. Calcaterra, B. Echenard, C. H. Cheng, R. M. Seddon, E. Fioravanti, A. G. Denig, B. N. Ratcliff, C. Bünger, M. Davier, V. P. Druzhinin, Ray Franklin Cowan, S. M. Spanier, A. Oyanguren, K. Griessinger, C. L. Davis, R. F. Schwitters, A. J S Smith, P. C. Kim, M. Posocco, K. T. Flood, R. Cheaib, A. Jawahery, N. Guttman, R. Stroili, M. Fritsch, F. U. Bernlochner, G. Cibinetto, J. Ocariz, M. T. Graham, D. M. Wright, M. S. Alam, Brian Meadows, Roland Waldi, So R. Y., F. De Mori, J. P. Lees, E. A. Kozyrev, W. J. Wisniewski, F. Ferroni, R. Gorodeisky, G. Vasseur, G. Wormser, F. Le Diberder, K. Yu Todyshev, B. G. Fulsom, C. Bozzi, Gabriele Simi, J. P. Coleman, R. Cenci, Ju-Young Kim, M. Bomben, F. Forti, R. Sacco, M. Margoni, C. Voß, Marcin Chrzaszcz, B. Oberhof, J. Cochran, A. M. Lutz, A. Zallo, Dominik Müller, T. Schroeder, A. J. Lankford, Yu. G. Kolomensky, G. Piredda, V. Santoro, U. Mallik, G. Batignani, M. Biasini, D. N. Brown, Y. B. Li, Michael Sokoloff, F. Ferrarotto, E. M. T. Puccio, M. Carpinelli, R. Godang, C. Sciacca, R. C. Field, H. Ahmed, T. Leddig, E. A. Kravchenko, D. J. Lange, R. Prepost, G. Casarosa, M. Ebert, P. R. Burchat, J. A. Ernst, L. Zani, A. Rossi, G. A. Cowan, S. Emery, Eleonora Luppi, C. Hearty, Marcello Rotondo, T. Adye, L. Vitale, X. C. Lou, S. Dittrich, J. L. Ritchie, O. Long, Wu S. L., D. Bernard, G. Eigen, A. Filippi, D. J. Summers, G. Rizzo, S. I. Serednyakov, F. Palombo, G. Calderini, A. Soffer, D. S. Chao, S. Martellotti, G. De Nardo, Alberto Lusiani, Nicola Neri, H. M. Lacker, C. Chen, Biplab Dey, N. Tasneem, J. Albert, Fergus Wilson, S. J. Sekula, C. Cartaro, I. M. Peruzzi, D. J. Payne, E. Ben-Haim, E. Paoloni, R. de Sangro, P. Patteri, Yu. I. Skovpen, K. Honscheid, J. W. Gary, P. Taras, M. Heß, R. Kowalewski, M. R. Convery, N. Arnaud, T. Lueck, D. G. Hitlin, J. Chauveau, C. Hast, Simon Akar, A. R. Buzykaev, H. Koch, S. Bettarini, G. Raven, G. Finocchiaro, M. Piccolo, F. Simonetto, C. Touramanis, S. Luitz, K. R. Schubert, R. J. Sobie, A. Roodman, W. Dunwoodie, T. S. Mattison, A. Randle-Conde, W. Gradl, M. K. Sullivan, M. Verderi, R. Faccini, V. Poireau, M. A. Giorgi, J. M. Losecco, G. Marchiori, F. C. Porter, F. Bianchi, I. M. Nugent, R. Calabrese, F. Di Lodovico, E. P. Solodov, Elisa Manoni, Sw. Banerjee, A. P. Onuchin, L. Sun, Adrian John Bevan, Alessandro Pilloni, I. Garzia, S. Passaggio, D. R. Peimer, Thomas Latham, C. Patrignani, V. Tisserand, D. Aston, F. Anulli, D. Bettoni, J. M. Roney, S. Prell, W. Panduro Vazquez, B. G. Pushpawela, A. Gaz, S. H. Robertson, M. V. Purohit, Timothy Gershon, D. A. Roberts, E. Gabathuler, P. F. Harrison, A. M. Eisner, L. Cremaldi, Roger Barlow, J. R. Wilson, and T. S. Miyashita
Subjects: S system, Physics, 010308 nuclear & particles physics, Branching fraction, Detector, 01 natural sciences, law.invention, Nuclear physics, law, 0103 physical sciences, Mass spectrum, Spectral function, 010306 general physics, Collider, Energy (signal processing)
Abstract: The decay τ^− → K^−K_Sν_τ has been studied using 430×10^6 e^+e^− → τ^+τ^− events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and studied with the BABAR detector. The mass spectrum of the K^−K_S system has been measured and the spectral function has been obtained. The measured branching fraction B(τ^− → K^−K_Sν_τ) = (0.739 ± 0.011(stat) ± 0.020(syst)) × 10^(-3) is found to be in agreement with earlier measurements.
Published: 2018

13. Measurement of the e+e−→π+π−π0π0 cross section using initial-state radiation at BABAR

Author: S. H. Robertson, N. Tasneem, R. Godang, E. A. Kravchenko, H. M. Lacker, Aidan Randle-Conde, G. Vasseur, F. De Mori, Crisostomo Sciacca, D. Aston, K. Griessinger, G. Rizzo, A. Oyanguren, G. Wormser, Denis Bernard, R. Cenci, A. Zallo, E. Grauges, Mario Giorgi, T. E. Latham, M. Carpinelli, J. M. Roney, A. J. S. Smith, J. P. Lees, A. M. Eisner, S. Prell, I. Garzia, V. Poireau, A. Soffer, M. Fritsch, C. L. Davis, U. Mallik, T. S. Miyashita, J. Chauveau, S. Luitz, W. Dunwoodie, F. Simonetto, J. G. Smith, A. Lusiani, B. Bhuyan, J. L. Ritchie, V. E. Blinov, D. E. Hutchcroft, J. Cochran, K. Yu Todyshev, B. G. Fulsom, T. Leddig, B. G. Pushpawela, M. V. Purohit, B. N. Ratcliff, J. Albert, V. Santoro, W. S. Lockman, K. T. Flood, T. S. Mattison, Peter S. Kim, M. Piccolo, R. Stroili, W. J. Wisniewski, M. R. Convery, X. C. Lou, S. Passaggio, D. N. Brown, C. P. Jessop, A. M. Rossi, A. G. Denig, J. Va’vra, R. Y. So, V. B. Golubev, G. Batignani, R. Sacco, M. K. Sullivan, C. Hearty, F. F. Wilson, S. Martellotti, D. W. G. S. Leith, J. W. Gary, M. Hess, A. V. Gritsan, E. Ben-Haim, D. J. Summers, P. F. Harrison, M. Röhrken, S. Emery, R. F. Schwitters, F. Di Lodovico, R. C. Field, R. Gorodeisky, R. J. Sobie, A. Palano, Z. C. Huard, L. Vitale, D. J. Payne, D. A. Roberts, G. Calderini, S. Bettarini, C. Hast, M. Rama, D. J. Lange, F. Martinez-Vidal, G. Finocchiaro, I. M. Nugent, G. Piredda, A. M. Lutz, M. T. Graham, A. Hafner, E. M. T. Puccio, J. J. Walsh, J. A. McKenna, W. Panduro Vazquez, E. Luppi, D. S. Chao, M. S. Alam, J. Ocariz, N. Guttman, M. Davier, A. Roodman, F. Anulli, M. Rotondo, G. De Nardo, B. Oberhof, S. M. Spanier, Alessandro Gaz, B. Echenard, T. J. Gershon, R. de Sangro, P. Taras, E. P. Solodov, R. Cheaib, F. Ferroni, R. Waldi, B. T. Meadows, G. D. Lafferty, G. Raven, G. Marchiori, D. Gamba, M. D. Sokoloff, M. Bellis, P. R. Burchat, Elisa Manoni, P. Patteri, C. Buenger, J. M. LoSecco, E. Fioravanti, J. P. Coleman, C. Voss, B. Dey, F. Palombo, T. Lueck, James R. Wilson, W. Gradl, Stephen Robert Wagner, R. Calabrese, K. R. Schubert, C. Cartaro, C. Touramanis, S. J. Sekula, G. Eigen, A. Jawahery, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, A. P. Onuchin, L. Lanceri, E. Paoloni, G. Cibinetto, P. Ongmongkolkul, L. M. Cremaldi, M. Ebert, D. G. Hitlin, F. Forti, Nicola Neri, A. Filippi, D. B. MacFarlane, A. Calcaterra, R. Cowan, Marco Bomben, Douglas Wright, H. A. Neal, G. Casarosa, A. R. Buzykaev, Hamad Ahmed, A. Beaulieu, Yu. G. Kolomensky, V. P. Druzhinin, C. Bozzi, G. Cowan, K. Honscheid, R. J. Barlow, M. Posocco, Yu. I. Skovpen, G. R. Bonneaud, J. Dorfan, M. Verderi, N. Arnaud, Alessandro Pilloni, D. R. Peimer, O. Gruenberg, E. Gabathuler, W. R. Innes, I. M. Peruzzi, Maurizio Biasini, D. R. Muller, Tamara Vazquez Schroeder, Owen Rosser Long, J. A. Ernst, S. I. Serednyakov, F. Bianchi, L. Sun, Tim Adye, S. Dittrich, M. Chrzaszcz, Adrian John Bevan, R. D. Kass, R. Kowalewski, Sw. Banerjee, J. M. Izen, G. Simi, D. Bettoni, Florian Urs Bernlochner, C. Patrignani, V. Tisserand, Martino Margoni, Simon Akar, and R. Prepost
Subjects: Physics, Muon, Photon, Anomalous magnetic dipole moment, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, BaBar experiment, Electron, 01 natural sciences, Nuclear physics, Positron, 0103 physical sciences, 010306 general physics
Abstract: The process e^+e^− → π^+π^−2π^0γ is investigated by means of the initial-state radiation technique, where a photon is emitted from the incoming electron or positron. Using 454.3 fb^(-1) of data collected around a center-of-mass energy of √s = 10.58 GeV by the BABAR experiment at SLAC, approximately 150000 signal events are obtained. The corresponding nonradiative cross section is measured with a relative uncertainty of 3.6% in the energy region around 1.5 GeV, surpassing all existing measurements in precision. Using this new result, the channel’s contribution to the leading order hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon is calculated as (g^(π+π−2π^0)_μ−2)/2=(17.9 ± 0.1_(stat) ± 0.6_(syst))×10^(-10) in the energy range 0.85 GeV < E_(CM) < 1.8 GeV. In the same energy range, the impact on the running of the fine-structure constant at the Z^0-pole is determined as Δα^(π+π−2π0)(M^2_Z) = (4.44 ± 0.02_(stat) ± 0.14_(syst))×10^(-4). Furthermore, intermediate resonances are studied and especially the cross section of the process e^+e^− → ωπ^0 → π^+π^−2π^0 is measured.
Published: 2017

14. Evidence for CP violation in B+→K*(892)+π0 from a Dalitz plot analysis of B+→KS0π+π0 decays

Author: J. W. Gary, R. Gorodeisky, M. Simard, D. A. Roberts, A. M. Lutz, A. M. Eisner, J. Olsen, M. T. Graham, A. Hafner, E. M. T. Puccio, U. Mallik, Douglas Wright, Peter S. Kim, A. G. Denig, A. V. Gritsan, M. Röhrken, Cheng Chen, T. S. Miyashita, N. Neri, M. V. Purohit, A. Palano, R. F. Schwitters, F. De Mori, R. Contri, G. J. King, J. Albert, D. J. Bard, Sridhara Dasu, C. Cartaro, A. Khan, K. T. Flood, David Hutchcroft, L. Piemontese, P. Patteri, Denis Bernard, G. Lynch, Simon Akar, R. Prepost, D. Lindemann, M. J. Lewczuk, Hamad Ahmed, C. Bünger, E. Gabathuler, W. R. Innes, P. F. Harrison, A. Filippi, F. C. Porter, T. Leddig, R. Sacco, A. J. S. Smith, D. B. MacFarlane, A. Calcaterra, S. J. Sekula, A. Jawahery, B. N. Ratcliff, F. Di Lodovico, J. Va’vra, V. Prasad, B. Bhuyan, B. G. Fulsom, A. Adametz, J. Chauveau, E. A. Kravchenko, N. Guttman, B. Stugu, Crisostomo Sciacca, D. Aston, G. Rizzo, G. Marchiori, D. Su, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, J. D. Richman, A. P. Onuchin, Pablo Villanueva-Perez, L. Lanceri, R. Godang, Dmytro Kovalskyi, M. Piccolo, L. M. Cremaldi, H. R. Band, W. S. Lockman, G. Vasseur, I. M. Peruzzi, R. Cowan, B. Echenard, M. Chrzaszcz, J. P. Lees, A. Stocchi, M. Ebert, M. R. Convery, R. Cenci, D. J. Payne, C. Voß, G. Cibinetto, J. L. Ritchie, Marco Bomben, S. Martellotti, J. Ocariz, Maria Roberta Monge, C. H. Cheng, P. Taras, E. P. Solodov, A. Zallo, H. M. Lacker, H. L. Lynch, G. Batignani, Tim Adye, E. Paoloni, J. R. Fry, R. Cheaib, Y. B. Pan, J. Cochran, D. Bettoni, M. Fritsch, S. I. Serednyakov, R. Kowalewski, F. Bianchi, E. O. Olaiya, E. Fioravanti, E. Ben-Haim, R. D. Kass, S. Luitz, R. Waldi, D. G. Hitlin, S. Bettarini, A. J. Bevan, M. Gaspero, V. Santoro, Corrado Angelini, S. Dittrich, G. Onorato, C. P. Jessop, P. Ongmongkolkul, R. de Sangro, S. L. Wu, Florian Urs Bernlochner, R. Y. So, J. J. Walsh, F. Palombo, T. Lueck, D. Lopes Pegna, J. M. LoSecco, V. B. Golubev, B. Dey, Bogdan Malaescu, B. T. Meadows, P. C. Bloom, W. H. Toki, G. Raven, C. Touramanis, S. M. Spanier, M. Hess, Yu. I. Skovpen, R. Andreassen, M. K. Sullivan, B. G. Pushpawela, I. M. Nugent, W. J. Wisniewski, S. Passaggio, H. W. Wulsin, M. D. Sokoloff, V. P. Druzhinin, T. E. Latham, M. Carpinelli, P. R. Burchat, C. Bozzi, G. Cowan, Denis Derkach, K. Honscheid, M. Rotondo, Yu. G. Kolomensky, C. L. Davis, O. Grünberg, G. De Nardo, M. J. Lee, G. Grosdidier, B. A. Schumm, S. Prell, V. E. Blinov, I. Garzia, Alessandro Pilloni, E. Grauges, C. Patrignani, Mario Giorgi, L. T. Kerth, M. Rama, F. Forti, V. Poireau, G. D. Lafferty, Z. C. Huard, D. S. Chao, J. A. McKenna, D. R. Peimer, A. Soffer, R. J. Barlow, J. M. Roney, M. Morandin, A. Lusiani, K. Yu Todyshev, D. W. G. S. Leith, Christopher West, V. Tisserand, G. Wormser, M. Posocco, M. Davier, C. Hast, J. P. Coleman, U. Uwer, F. Anulli, R. Stroili, F. Simonetto, J. M. Izen, R. H. Schindler, G. Calderini, J. G. Smith, D. J. Lange, G. Piredda, H. A. Neal, W. Panduro Vazquez, G. Casarosa, N. Tasneem, Alessandro Gaz, T. M. Hong, S. H. Robertson, T. S. Mattison, Maurizio Biasini, D. R. Muller, Aidan Randle-Conde, Herbert Koch, Martino Margoni, T. J. Gershon, M. Franco Sevilla, A. R. Buzykaev, A. Beaulieu, Tamara Vazquez Schroeder, R. Ayad, James R. Wilson, G. R. Bonneaud, J. Dorfan, D. N. Brown, K. Griessinger, Owen Rosser Long, A. Oyanguren, A. Seiden, F. F. Wilson, X. C. Lou, W. Dunwoodie, C. Hearty, William T. Ford, R. Calabrese, H. H. F. Choi, B. Hamilton, S. Emery, Elisa Manoni, J. A. Ernst, D. J. Summers, G. P. Dubois-Felsmann, P. Roudeau, L. Sun, R. J. Sobie, M. Verderi, S. Playfer, B. Spaan, L. Vitale, F. Martinez-Vidal, Ph Leruste, N. Arnaud, H. Briand, W. Gradl, E. Luppi, M. L. Perl, A. M. Rossi, Sw. Banerjee, G. Eigen, R. C. Field, A. Roodman, G. Finocchiaro, V. Luth, M. S. Alam, A. Snyder, B. Oberhof, T. Pulliam, G. Simi, F. Ferroni, D. Gamba, M. Bellis, P. M. Patel, Stephen Robert Wagner, and K. R. Schubert
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Hadron, Dalitz plot, Elementary particle, 01 natural sciences, Nuclear physics, Particle decay, 0103 physical sciences, CP violation, B meson, 010306 general physics
Abstract: We report a Dalitz plot analysis of charmless hadronic decays of charged B mesons to the final state K^0_Sπ^+π^0 using the full BABAR data set of 470.9±2.8 million BB[overbar] events collected at the Υ(4S)resonance. We measure the overall branching fraction and CP asymmetry to be B(B^+→K^0π^+π^0)=(31.8±1.8±2.1+^(6.0)_(−0.0))×10^(-6) and A_(CP)(B^+→K^0π^+π^0)=0.07±0.05±0.03^(+0.02)_(−0.03), where the uncertainties are statistical, systematic, and due to the signal model, respectively. This is the first measurement of the branching fraction for B^+→K^0π^+π^0. We find first evidence of a CP asymmetry in B^+→K∗(892)+π^0 decays: A_(CP)(B^+→K∗(892)^+π^0)=−0.52±0.14±0.04^(+0.04)_(−0.02). The significance of this asymmetry, including systematic and model uncertainties, is 3.4 standard deviations. We also measure the branching fractions and CP asymmetries for three other intermediate decay modes.
Published: 2017

15. Search for Invisible Decays of a Dark Photon Produced in e+e− Collisions at BaBar

Author: D. J. Payne, M. Verderi, J. Chauveau, F. De Mori, A. M. Rossi, Joseph Izen, S. Martellotti, I. M. Nugent, A. Giuffrida, D. S. Chao, M. Davier, V. B. Golubev, Heiko Lacker, A. Roodman, Roland Waldi, Abner Soffer, J. L. Ritchie, F. Ferroni, U. Mallik, Paul Fraser Harrison, Ju-Young Kim, T. E. Latham, M. Carpinelli, Stephen Robert Wagner, M. K. Sullivan, J. Ocariz, T. S. Miyashita, K. R. Schubert, N. Neri, T. S. Mattison, E. Fioravanti, C. Hast, D. J. Lange, G. Piredda, G. Wormser, A. Palano, Florian Urs Bernlochner, F. Palombo, T. Lueck, R. Y. So, R. Sacco, R. Godang, Z. C. Huard, W. Panduro Vazquez, P. Taras, E. P. Solodov, D. B. MacFarlane, M. Rama, R. Cenci, M. Fritsch, J. W. Gary, J. A. McKenna, David Hutchcroft, E. Paoloni, A. Zallo, T. J. Gershon, T. Schroeder, S. Bettarini, Yu G. Kolomensky, W. S. Lockman, J. P. Coleman, W. R. Innes, F. Anulli, S. Luitz, A. Filippi, P. Patteri, Alessandro Gaz, D. Gamba, J. Va’vra, M. V. Purohit, M. Bellis, R. Cheaib, J. Albert, Elisa Manoni, B. Bhuyan, D. Aston, C. H. Chen, Andrei Gritsan, B. G. Fulsom, J. J. Walsh, S. M. Spanier, J. Dorfan, M. Heß, N. Tasneem, D. N. Brown, R. Faccini, F. Ferrarotto, A. J. Lankford, Mark Derdzinski, R. Cowan, L. M. Cremaldi, M. T. Graham, J. M. LoSecco, J. P. Lees, F. Le Diberder, S. Prell, A. M. Lutz, I. Garzia, A. J.S. Smith, D. G. Hitlin, James H Cochran, B. Dey, G. D. Lafferty, K. Yu Todyshev, R. C. Field, A. Oyanguren, S. H. Robertson, R. Gorodeisky, Herbert Koch, S. Passaggio, R. Stroili, F. Forti, D. A. Roberts, C. H. Cheng, H. A. Neal, P. Ongmongkolkul, K. Griessinger, Aidan Randle-Conde, I. M. Peruzzi, G. Casarosa, C. Bünger, Yu I. Skovpen, R. de Sangro, G. R. Bonneaud, V. Santoro, T. Leddig, A. Lusiani, C. Touramanis, W. J. Wisniewski, Sau Lan Wu, A. Hafner, O. Grünberg, E. M. T. Puccio, A. R. Buzykaev, M. S. Alam, A. Beaulieu, E. Grauges, Mario Giorgi, James R. Wilson, R. Calabrese, G. Eigen, Simon Akar, D. J. Summers, M. Bomben, R. J. Sobie, L. Vitale, F. Martinez-Vidal, Dominik Müller, G. A. Cowan, G. J. King, C. L. Davis, M. Ebert, J. M. Roney, Stephen Sekula, J. G. Smith, V. P. Druzhinin, C. Bozzi, E. Luppi, H. Ahmed, N. Guttman, G. De Nardo, R. F. Schwitters, F. Simonetto, G. Marchiori, A. Jawahery, A. P. Onuchin, X. C. Lou, B. T. Meadows, G. Raven, V. E. Blinov, K. Honscheid, R. J. Barlow, G. Cibinetto, M. Posocco, Crisostomo Sciacca, G. Rizzo, Colin Jessop, R. Prepost, M. D. Sokoloff, P. R. Burchat, A. Calcaterra, D. W. G. S. Leith, G. Calderini, S. Emery, E. A. Kravchenko, G. Vasseur, K. T. Flood, Alessandro Pilloni, D. R. Peimer, C. Hearty, R. Kowalewski, C. Cartaro, Maurizio Biasini, Owen Rosser Long, L. Sun, Adrian John Bevan, Douglas Wright, S. I. Serednyakov, F. Bianchi, S. Dittrich, E. Gabathuler, M. R. Convery, F. C. Porter, A. G. Denig, M. Chrzaszcz, C. Voß, D. Bettoni, B. N. Ratcliff, C. Patrignani, V. Tisserand, A. M. Eisner, Sw. Banerjee, G. Simi, N. Arnaud, Tim Adye, R. D. Kass, Martino Margoni, G. Finocchiaro, M. Rotondo, M. Röhrken, F. F. Wilson, B. Oberhof, V. Poireau, M. Piccolo, P. C. Kim, G. Batignani, E. Ben-Haim, B. Echenard, D. Bernard, W. Dunwoodie, J. A. Ernst, W. Gradl, B. G. Pushpawela, L. Lanceri, and F. Di Lodovico
Subjects: Physics, Particle physics, Muon, 010308 nuclear & particles physics, Electron–positron annihilation, Dark matter, General Physics and Astronomy, Coupling (probability), 01 natural sciences, Dark photon, B-factory, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), 010306 general physics, Boson
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^{-}→γA^{'}; 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)_{μ} anomaly, as well as a broad range of parameters for the dark-sector models.
Published: 2017

16. Dalitz plot analyses of J/ψ→π+π−π0 , J/ψ→K+K−π0 , and J/ψ→Ks0K±π∓ produced via e+e− annihilation with initial-state radiation

Author: Maurizio Biasini, F. Bianchi, J. Chauveau, F. De Mori, R. Kowalewski, S. Dittrich, Owen Rosser Long, J. A. Ernst, A. P. Onuchin, L. Sun, Adrian John Bevan, Alessandro Pilloni, D. R. Peimer, C. Hearty, Z. C. Huard, F. Di Lodovico, Roberto Calabrese, Heiko Lacker, Denis Bernard, D. J. Payne, R. Faccini, A. J. Lankford, S. Prell, J. Ocariz, A. Roodman, C. Bozzi, B. N. Ratcliff, D. W. G. S. Leith, K. R. Schubert, C. H. Chen, S. M. Spanier, I. M. Peruzzi, Vladimir Blinov, J. L. Ritchie, S. I. Serednyakov, E. Fioravanti, G. Finocchiaro, C. H. Cheng, Sw. Banerjee, A. G. Denig, C. Bünger, J. W. Gary, G. Calderini, E. A. Kravchenko, G. Rizzo, M. Rama, Roland Waldi, Nicolas Arnaud, R. Cowan, A. Zallo, James H Cochran, V. Poireau, R. Cheaib, S. H. Robertson, F. Ferroni, Michael R. Pennington, L. M. Cremaldi, Herbert Koch, G. De Nardo, Crisostomo Sciacca, D. Aston, R. Y. So, S. L. Wu, Yu. I. Skovpen, H. A. Neal, A. Lusiani, J. M. LoSecco, M. Röhrken, Peter S. Kim, Eleonora Luppi, K. Griessinger, Abner Soffer, J. P. Lees, G. A. Cowan, Paul Fraser Harrison, B. Dey, J. Dorfan, V. P. Druzhinin, M. T. Graham, Florian Urs Bernlochner, F. Palombo, T. Lueck, Douglas Wright, G. Cibinetto, R. Godang, U. Mallik, E. Gabathuler, Ju-Young Kim, G. Piredda, J. J. Walsh, W. R. Innes, F. C. Porter, R. Cenci, G. J. King, A. R. Buzykaev, D. N. Brown, P. Ongmongkolkul, J. M. Roney, B. Bhuyan, A. Beaulieu, M. Verderi, B. G. Fulsom, N. Tasneem, F. Le Diberder, C. Cartaro, R. C. Field, M. Heß, J. A. McKenna, M. Chrzaszcz, C. Voß, T. E. Latham, Stephen Robert Wagner, E. Manoni, Colin Jessop, R. Prepost, E. Paoloni, R. de Sangro, G. D. Lafferty, D. G. Hitlin, B. Echenard, A. Oyanguren, Randall Sobie, J. G. Smith, Andrei Gritsan, M. Fritsch, M. S. Alam, Aidan Randle-Conde, S. Passaggio, G. R. Bonneaud, Stephen Sekula, D. E. Hutchcroft, Adam P. Szczepaniak, A. M. Lutz, T. Leddig, A. Calcaterra, M. K. Sullivan, Yu G. Kolomensky, A. M. Eisner, G. Batignani, C. Touramanis, W. S. Lockman, A. Jawahery, F. F. Wilson, R. F. Schwitters, E. Ben-Haim, B. Oberhof, O. Grünberg, V. Santoro, I. Garzia, K. Honscheid, M. R. Convery, C. Patrignani, V. Tisserand, K. Yu. Todyshev, G. Vasseur, R. J. Barlow, J. Va’vra, A. Filippi, K. T. Flood, Daniel A. Roberts, D. J. Summers, Tim Adye, M. V. Purohit, D. Bettoni, T. S. Mattison, R. D. Kass, D. Gamba, J. Albert, W. J. Wisniewski, S. Luitz, Giulia Casarosa, G. Wormser, M. Bomben, S. Emery, S. Martellotti, C. Hast, D. J. Lange, L. Vitale, F. Martinez-Vidal, N. Neri, W. Panduro Vazquez, N. Guttman, Dominik Müller, E. Grauges, Mario Giorgi, V. B. Golubev, T. J. Gershon, M. Rotondo, H. Ahmed, G. Marchiori, F. Simonetto, T. Schroeder, Gabriele Simi, W. Gradl, C. L. Davis, L. Lanceri, P. Patteri, P. Taras, W. Dunwoodie, A. Gaz, X. C. Lou, B. G. Pushpawela, F. Forti, J. P. Coleman, F. Anulli, A. Palano, Martino Margoni, M. Piccolo, S. Bettarini, E. P. Solodov, T. S. Miyashita, M. Posocco, R. Gorodeisky, M. Bellis, A. Hafner, F. Ferrarotto, E. M. T. Puccio, M. Ebert, D. B. MacFarlane, R. Stroili, R. Sacco, James R. Wilson, Joseph Izen, G. Eigen, A. J.S. Smith, Simon Akar, M. Carpinelli, A. Rossi, B. T. Meadows, G. Raven, M. D. Sokoloff, P. R. Burchat, I. M. Nugent, D. S. Chao, and M. Davier
Subjects: Physics, Particle physics, Annihilation, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Dalitz plot, 01 natural sciences, Nuclear physics, Particle decay, 0103 physical sciences, 010306 general physics, Dimensionless quantity
Abstract: We study the processes e^+e^− → γISR J/ψ, where J/ψ → π^+π^−π^0, J/ψ → K^+K^−π^0, and J/ψ → K^0_SK^±π^∓ using a data sample of 519 fb^(−1) recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e^+e^− collider at center-of-mass energies at and near the Υ(nS) (n=2,3,4) resonances. We measure the ratio of branching fractions R_1 = ^(B(J/ψ → K^+K^−π^0)) /_(B(J/ψ → π^+π^−π^0)) and R_2 = ^(B(J/ψ → K^0_SK^±π^∓))/_(B(J/ψ → π^+π^−π^0)). We perform Dalitz plot analyses of the three J/ψ decay modes and measure fractions for resonances contributing to the decays. We also analyze the J/ψ → π^+π^−π^0 decay using the Veneziano model. We observe structures compatible with the presence of ρ(1450) in all three J/ψ decay modes and measure the relative branching fraction: R(ρ(1450)) = ^(B(ρ(1450) → K^+K^−))/_(B(ρ(1450) → π^+π^−)) = 0.307±0.084(stat)±0.082(sys).
Published: 2017

17. Measurement of the inclusive electron spectrum from B meson decays and determination of |Vub

Author: F. Di Lodovico, D. J. Payne, F. Simonetto, R. H. Schindler, E. A. Kravchenko, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, C. H. Cheng, J. D. Richman, F. De Mori, S. Bettarini, A. J. Bevan, Maurizio Biasini, D. R. Muller, C. Bünger, J. R. Fry, Pablo Villanueva-Perez, H. A. Neal, L. Lanceri, G. Casarosa, Tamara Vazquez Schroeder, A. Adametz, Denis Bernard, G. Vasseur, R. de Sangro, J. L. Ritchie, Alam, S. J. Sekula, A. Jawahery, Owen Rosser Long, R. Y. So, A. Seiden, M. Hess, Peter S. Kim, R. Andreassen, N. Tasneem, A. J. S. Smith, S. M. Spanier, G. Wormser, J. A. Ernst, A. R. Buzykaev, J. Va’vra, G. Onorato, W. H. Toki, A. Beaulieu, L. T. Kerth, A. P. Onuchin, P. Roudeau, L. Sun, X. C. Lou, Aidan Randle-Conde, A. Filippi, R. Godang, V. Prasad, J. Chauveau, G. Lynch, G. Cibinetto, M. Franco Sevilla, V. B. Golubev, Elisa Manoni, D. Bettoni, N. Guttman, B. Stugu, S. Playfer, G. Marchiori, A. V. Gritsan, B. T. Meadows, S. Martellotti, D. E. Hutchcroft, W. Dunwoodie, T. Leddig, S. Luitz, H. W. Wulsin, P. Ongmongkolkul, G. Raven, E. Grauges, H. M. Lacker, H. L. Lynch, A. M. Eisner, Sridhara Dasu, C. Cartaro, M. Röhrken, D. Su, G. P. Dubois-Felsmann, H. R. Band, W. S. Lockman, A. Palano, P. Taras, E. P. Solodov, S. H. Robertson, B. N. Ratcliff, M. Rama, M. Piccolo, G. Batignani, R. Cowan, T. E. Latham, Florian Urs Bernlochner, B. G. Pushpawela, M. J. Lee, M. Carpinelli, J. A. McKenna, Christopher West, C. Patrignani, M. R. Convery, M. V. Purohit, P. R. Burchat, J. Albert, J. M. Roney, G. J. King, M. Gaspero, Cheng Chen, V. Tisserand, Herbert Koch, David Nathan Brown, P. Patteri, Yu. G. Kolomensky, G. R. Bonneaud, J. Dorfan, I. M. Nugent, L. M. Cremaldi, Corrado Angelini, J. G. Smith, E. Ben-Haim, J. P. Coleman, C. Hearty, R. Cenci, D. Lopes Pegna, M. Ebert, D. B. MacFarlane, D. J. Summers, Dmytro Kovalskyi, A. Zallo, E. O. Olaiya, E. Fioravanti, D. S. Chao, V. P. Druzhinin, C. Bozzi, G. Cowan, A. Calcaterra, K. Honscheid, J. P. Lees, F. Palombo, T. Lueck, D. Lindemann, B. A. Schumm, M. J. Lewczuk, A. G. Denig, Sw. Banerjee, M. Davier, R. Contri, R. J. Barlow, T. S. Mattison, W. J. Wisniewski, R. J. Sobie, Giorgi, M. Posocco, M. Fritsch, M. Verderi, J. Cochran, Ph Leruste, C. L. Davis, N. Arnaud, D. G. Hitlin, C. Touramanis, L. Vitale, Marco Bomben, F. Martinez-Vidal, M. Rotondo, S. Passaggio, Crisostomo Sciacca, D. Aston, G. Rizzo, V. Santoro, V. E. Blinov, K. Griessinger, R. F. Schwitters, G. Simi, K. T. Flood, U. Mallik, Douglas Wright, G. De Nardo, B. Hamilton, A. Oyanguren, O. Grünberg, E. Luppi, F. F. Wilson, P. F. Harrison, D. W. G. S. Leith, M. L. Perl, F. Forti, R. Sacco, G. Grosdidier, B. Echenard, A. M. Rossi, T. S. Miyashita, D. J. Bard, N. Neri, H. H. F. Choi, G. Calderini, S. Emery, S. Prell, I. Garzia, L. Piemontese, V. Poireau, Hamad Ahmed, A. Soffer, A. Lusiani, E. Gabathuler, W. R. Innes, F. C. Porter, T. M. Hong, R. Gorodeisky, C. Hast, D. J. Lange, M. Simard, D. A. Roberts, G. Piredda, A. M. Lutz, W. Panduro Vazquez, M. Chrzaszcz, J. Olsen, M. T. Graham, Sau Lan Wu, A. Hafner, J. Ocariz, E. M. T. Puccio, T. J. Gershon, R. Cheaib, I. M. Peruzzi, R. Waldi, J. M. LoSecco, C. Voss, B. Dey, Bogdan Malaescu, S. I. Serednyakov, F. Bianchi, Z. C. Huard, B. Spaan, S. Dittrich, H. Briand, W. Gradl, R. C. Field, G. Finocchiaro, V. Luth, A. Snyder, B. Oberhof, F. Anulli, Alessandro Gaz, B. Bhuyan, B. G. Fulsom, C. P. Jessop, M. K. Sullivan, D. Gamba, M. Bellis, David Norvil Brown, P. C. Bloom, Sokoloff, Y. B. Pan, R. Kowalewski, Denis Derkach, Alessandro Pilloni, D. R. Peimer, M. Morandin, K. Yu Todyshev, U. Uwer, R. Stroili, R. Ayad, James R. Wilson, R. Calabrese, J. J. Walsh, G. Eigen, W. T. Ford, Tim Adye, G. D. Lafferty, R. D. Kass, J. M. Izen, Martino Margoni, Yu. I. Skovpen, J. W. Gary, A. Khan, A. Stocchi, Maria Roberta Monge, E. Paoloni, A. Roodman, T. Pulliam, F. Ferroni, P. M. Patel, Stephen Robert Wagner, K. R. Schubert, Simon Akar, and R. Prepost
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Cabibbo–Kobayashi–Maskawa matrix, Branching fraction, media_common.quotation_subject, Hadron, Resonance, Dalitz plot, 01 natural sciences, Asymmetry, 0103 physical sciences, CP violation, 010306 general physics, media_common
Abstract: We report a Dalitz plot analysis of charmless hadronic decays of charged $B$ mesons to the final state $K_{\rm S}^{0}\pi^{+}\pi^{0}$ using the full BaBar dataset of $470.9\pm2.8$ million $B\bar{B}$ events collected at the $\Upsilon(4S)$ resonance. We measure the overall branching fraction and $CP$ asymmetry to be ${\cal B}\left(B^{+}\to K^{0}\pi^{+}\pi^{0}\right) = \left(45.9 \pm 2.6 \pm 3.0^{+8.6}_{-0.0}\right)\times10^{-6}$ and $A_{CP}\left(B^{+}\to K^{0}\pi^{+}\pi^{0}\right) = 0.07 \pm 0.05 \pm 0.03^{+0.02}_{-0.03}$, where the uncertainties are statistical, systematic, and due to the signal model, respectively. This is the first measurement of the branching fraction for $B^{+} \to K^{0}\pi^{+}\pi^{0}$. We find first evidence of a $CP$ asymmetry in $B^{+}\to K^{*}(892)^{+}\pi^{0}$ decays: $A_{CP}\left(B^{+}\to K^{*}(892)^{+}\pi^{0}\right)=-0.52 \pm 0.14 \pm 0.04^{+0.04}_{-0.02}$. The significance of this asymmetry, including systematic and model uncertainties, is $3.4$ standard deviations. We also measure the branching fractions and $CP$ asymmetries for three other intermediate decay modes.
Published: 2017

18. Cross sections for the reactions e+e−→KS0KL0π0 , KS0KL0η , and KS0KL0π0π0 from events with initial-state radiation

Author: B. N. Ratcliff, Cheng Chen, Elisa Manoni, D. B. MacFarlane, A. Calcaterra, M. HeÃŸ, V. B. Golubev, F. De Mori, J. M. Izen, Marco Bomben, Denis Bernard, J. Va’vra, A. J. S. Smith, M. Rotondo, M. Rama, J. A. McKenna, N. Guttman, A. M. Eisner, Martino Margoni, S. Bettarini, A. J. Bevan, C. Cartaro, J. Chauveau, G. Marchiori, G. De Nardo, A. V. Gritsan, C. Touramanis, A. M. Rossi, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, A. G. Denig, L. Lanceri, C. L. Davis, W. Gradl, F. Di Lodovico, S. M. Spanier, A. Roodman, G. J. King, R. F. Schwitters, M. V. Purohit, C. Hearty, D. J. Summers, J. P. Lees, H. A. Neal, G. Casarosa, A. Palano, J. Albert, Alessandro Pilloni, D. R. Peimer, R. C. Field, F. Ferroni, D. J. Payne, Douglas Wright, So R. Y., J. W. Gary, Tim Adye, P. F. Harrison, R. D. Kass, J. J. Walsh, A. R. Buzykaev, R. J. Sobie, L. Vitale, F. Martinez-Vidal, G. Finocchiaro, A. Beaulieu, J. Cochran, M. Piccolo, M. RÃ¶hrken, C. Hast, Ju-Young Kim, Crisostomo Sciacca, D. Aston, G. Rizzo, J. L. Ritchie, I. M. Peruzzi, C. BÃ¼nger, M. S. Alam, G. Batignani, D. J. Lange, G. Piredda, W. Panduro Vazquez, Stephen Robert Wagner, J. Ocariz, Y. I. Skovpen, U. Mallik, G. D. Lafferty, E. Luppi, K. R. Schubert, C. H. Cheng, E. Ben-Haim, T. J. Gershon, S. Martellotti, B. Bhuyan, Hamad Ahmed, R. Cheaib, Peter S. Kim, A. Filippi, B. Oberhof, D. Gamba, B. G. Fulsom, F. Simonetto, R. Waldi, P. Taras, E. P. Solodov, T. S. Miyashita, N. Neri, S. I. Serednyakov, P. Patteri, M. Bellis, F. Bianchi, J. M. LoSecco, R. Cowan, I. M. Nugent, B. Dey, J. M. Roney, D. E. Hutchcroft, T. Leddig, D. S. Chao, James R. Wilson, S. Dittrich, Maurizio Biasini, D. R. Muller, J. G. Smith, W. S. Lockman, R. Calabrese, M. Davier, V. Santoro, C. P. Jessop, J. P. Coleman, R. de Sangro, M. R. Convery, T. S. Mattison, V. P. Druzhinin, C. Bozzi, P. Ongmongkolkul, G. Cowan, E. Paoloni, K. Honscheid, S. Banerjee, X. C. Lou, R. Godang, G. Eigen, M. K. Sullivan, W. J. Wisniewski, R. J. Barlow, Tamara Vazquez Schroeder, D. N. Brown, S. Prell, I. Garzia, M. Posocco, H. M. Lacker, N. Tasneem, F. F. Wilson, Owen Rosser Long, T. E. Latham, V. Poireau, M. Carpinelli, S. Passaggio, S. Emery, Wu S. L., S. H. Robertson, A. Soffer, S. J. Sekula, Herbert Koch, A. Jawahery, R. Stroili, Y. G. Kolomensky, A. Lusiani, J. A. Ernst, K. Griessinger, Aidan Randle-Conde, A. P. Onuchin, A. Oyanguren, G. Cibinetto, B. Echenard, C. VoÃŸ, L. Sun, O. GrÃ¼nberg, Z. C. Huard, F. Anulli, Alessandro Gaz, R. Kowalewski, G. R. Bonneaud, J. Dorfan, E. Fioravanti, F. Palombo, T. Lueck, M. Verderi, N. Arnaud, K. Y. Todyshev, V. E. Blinov, D. W. G. S. Leith, E. Grauges, G. Calderini, Mario Giorgi, Simon Akar, R. Prepost, G. Simi, E. A. Kravchenko, D. Bettoni, Florian Urs Bernlochner, G. Vasseur, R. Cenci, A. Zallo, K. T. Flood, C. Patrignani, M. Fritsch, R. Sacco, V. Tisserand, L. M. Cremaldi, M. Ebert, D. G. Hitlin, S. Luitz, E. Gabathuler, W. R. Innes, F. Forti, F. C. Porter, G. Wormser, M. Chrzaszcz, B. G. Pushpawela, W. Dunwoodie, B. T. Meadows, G. Raven, M. D. Sokoloff, P. R. Burchat, R. Gorodeisky, D. A. Roberts, A. M. Lutz, M. T. Graham, A. Hafner, and E. M. T. Puccio
Subjects: Physics, 010308 nuclear & particles physics, 0103 physical sciences, State (functional analysis), Atomic physics, Radiation, 010306 general physics, 01 natural sciences
Published: 2017

19. Search for B+→K+τ+τ− at the BaBar Experiment

Author: R. Calabrese, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, R. Cenci, R. Sacco, A. Zallo, Elisa Manoni, D. Aston, Gabriele Simi, B. Echenard, M. Fritsch, C. L. Davis, G. A. Cowan, A. G. Denig, D. Bernard, M. T. Graham, Eleonora Luppi, J. L. Ritchie, S. I. Serednyakov, N. Tasneem, S. Martellotti, M. Carpinelli, I. M. Nugent, D. S. Chao, M. Davier, V. Poireau, M. Piccolo, G. Finocchiaro, T. Leddig, M. V. Purohit, Aidan Randle-Conde, I. M. Peruzzi, A. J.S. Smith, N. Arnaud, J. Albert, S. Bettarini, G. R. Bonneaud, S. Emery, G. Batignani, Simon Akar, W. R. Innes, George Lafferty, B. Oberhof, R. F. Schwitters, A. M. Rossi, A. Filippi, Joseph Izen, K. Yu. Todyshev, A. Roodman, R. Y. So, E. Fioravanti, Roland Waldi, F. Ferroni, Alessandro Pilloni, B. Bhuyan, J. M. Roney, J. Dorfan, Abner Soffer, Paul Fraser Harrison, E. P. Solodov, T. S. Miyashita, Ju-Young Kim, E. Grauges, F. Simonetto, R. Cowan, F. Bianchi, Miriam Heß, A. Calcaterra, Stephen Robert Wagner, F. Forti, M. K. Sullivan, Mario Giorgi, A. Oyanguren, C. Cartaro, G. Raven, J. J. Walsh, S. Dittrich, M. Röhrken, D. R. Peimer, Giulia Casarosa, M. D. Sokoloff, G. Wormser, D. N. Brown, F. Di Lodovico, D. J. Payne, J. A. McKenna, P. R. Burchat, W. Dunwoodie, M. R. Convery, C. Bünger, J. A. Ernst, W. Gradl, E. Ben-Haim, L. Lanceri, D. W. G. S. Leith, Colin Jessop, R. Prepost, E. Paoloni, B. G. Pushpawela, C. H. Cheng, Timothy Gershon, Alberto Lusiani, H. A. Neal, X. C. Lou, R. Godang, R. de Sangro, M. Verderi, Biplab Dey, B. N. Ratcliff, Fergus Wilson, R. Gorodeisky, D. Gamba, D. A. Roberts, G. Calderini, P. Taras, C. Touramanis, T. Schroeder, U. Mallik, G. Vasseur, K. T. Flood, J. Chauveau, F. De Mori, A. R. Buzykaev, M. S. Alam, Roger Barlow, Martino Margoni, B. G. Fulsom, A. Beaulieu, P. C. Kim, N. Guttman, G. De Nardo, Sau Lan Wu, A. Hafner, E. M. T. Puccio, A. Jawahery, R. Kowalewski, Yu. I. Skovpen, G. Cibinetto, C. Hearty, G. Marchiori, Andrei Gritsan, D. J. Summers, Florian Urs Bernlochner, F. Palombo, T. Lueck, K. R. Schubert, M. Ebert, M. Bomben, Maurizio Biasini, L. Vitale, F. Martinez-Vidal, Marcello Rotondo, Dominik Müller, C. H. Chen, Stephen Sekula, Owen Rosser Long, H. Ahmed, S. M. Spanier, Vladimir Blinov, L. M. Cremaldi, J. P. Coleman, J. R. Smith, A. P. Onuchin, L. Sun, Adrian John Bevan, C. Bozzi, D. G. Hitlin, R. C. Field, Matteo Rama, Nicola Neri, S. Prell, K. Honscheid, M. Bellis, Tim Adye, R. D. Kass, T. S. Mattison, James H Cochran, M. Posocco, V. P. Druzhinin, C. Hast, D. J. Lange, G. Piredda, R. Stroili, Marcin Chrzaszcz, James R. Wilson, G. Eigen, A. M. Lutz, S. Passaggio, V. B. Golubev, A. Palano, David Hutchcroft, S. Luitz, P. Patteri, J. Va’vra, D. B. MacFarlane, G. Rizzo, J. P. Lees, V. Santoro, O. Grünberg, Christian Voß, Yu G. Kolomensky, P. Ongmongkolkul, E. A. Kravchenko, Crisostomo Sciacca, W. J. Wisniewski, G. J. King, J. Ocariz, J. W. Gary, R. Cheaib, J. M. LoSecco, S. H. Robertson, Herbert Koch, K. Griessinger, Brian Meadows, Z. C. Huard, W. Panduro Vazquez, V. Luth, W. S. Lockman, F. Anulli, Alessandro Gaz, A. M. Eisner, Sw. Banerjee, D. Bettoni, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, E. Gabathuler, F. C. Porter, and Douglas Wright
Subjects: Physics, Particle physics, Muon, Neutral current, 010308 nuclear & particles physics, Electron–positron annihilation, General Physics and Astronomy, BaBar experiment, 01 natural sciences, Nuclear physics, 0103 physical sciences, B meson, Neutrino, 010306 general physics, Energy (signal processing), Lepton
Abstract: We search for the rare flavor-changing neutral current process B^{+}→K^{+}τ^{+}τ^{-} using data from the BABAR experiment. The data sample, collected at the center-of-mass energy of the ϒ(4S) resonance, corresponds to a total integrated luminosity of 424 fb^{-1} and to 471×10^{6} BB[over ¯] pairs. We reconstruct one B meson, produced in the ϒ(4S)→B^{+}B^{-} decay, in one of many hadronic decay modes and search for activity compatible with a B^{+}→K^{+}τ^{+}τ^{-} decay in the rest of the event. Each τ lepton is required to decay leptonically into an electron or muon and neutrinos. Comparing the expected number of background events with the data sample after applying the selection criteria, we do not find evidence for a signal. The resulting upper limit, at the 90% confidence level, is B(B^{+}→K^{+}τ^{+}τ^{-})
Published: 2017

20. Measurement of the B0→D*−π+π−π+ branching fraction

Author: Colin Jessop, R. Prepost, N. Tasneem, G. Vasseur, K. T. Flood, J. Ocariz, Debbie Payne, S. H. Robertson, J. Chauveau, F. De Mori, F. Forti, J. W. Gary, J. Dorfan, S. Emery, Herbert Koch, B. Bhuyan, S. Bettarini, B. G. Fulsom, Aidan Randle-Conde, George Lafferty, R. Cheaib, M. K. Sullivan, Maurizio Biasini, G. R. Bonneaud, K. Griessinger, Yu. I. Skovpen, Brian Meadows, G. De Nardo, A. M. Eisner, J. M. LoSecco, M. Röhrken, R. Cenci, A. Zallo, Gabriele Simi, Z. C. Huard, Sw. Banerjee, C. L. Davis, Owen Rosser Long, Andrei Gritsan, J. L. Ritchie, F. Anulli, Abner Soffer, Alessandro Gaz, F. Di Lodovico, Denis Bernard, Miriam Heß, T. S. Mattison, J. A. Ernst, S. I. Serednyakov, Douglas Wright, U. Mallik, M. Fritsch, C. Hast, I. M. Peruzzi, A. P. Onuchin, L. Sun, A. Filippi, D. J. Lange, G. Piredda, M. Verderi, W. Gradl, Peter S. Kim, Eleonora Luppi, W. Panduro Vazquez, S. Martellotti, G. J. King, M. Carpinelli, L. Lanceri, M. V. Purohit, J. A. McKenna, F. Bianchi, R. Y. So, Adrian John Bevan, F. Simonetto, S. Dittrich, Simon Akar, F. Betti, R. Cowan, E. Paoloni, D. W. G. S. Leith, J. Albert, R. C. Field, K. R. Schubert, Nicolas Arnaud, A. M. Lutz, Tim Adye, R. D. Kass, G. Finocchiaro, V. Luth, Alessandro Pilloni, B. Echenard, G. Calderini, D. R. Peimer, A. Oyanguren, M. Piccolo, E. Gabathuler, F. Le Diberder, Fernando Palombo, M. S. Alam, Stephen Sekula, W. R. Innes, Timothy Gershon, F. C. Porter, J. M. Roney, G. Raven, I. M. Nugent, Alberto Lusiani, G. Batignani, Biplab Dey, C. Touramanis, C. H. Chen, S. M. Spanier, E. Grauges, Fergus Wilson, D. S. Chao, Vladimir Blinov, P. R. Burchat, C. Bozzi, S. Luitz, J. R. Smith, J. M. Izen, K. Honscheid, B. Oberhof, Mario Giorgi, J. J. Walsh, M. Davier, G. Rizzo, Florian Urs Bernlochner, T. Lueck, R. Calabrese, E. Ben-Haim, K. Yu. Todyshev, Michael Sokoloff, Elisa Manoni, M. Posocco, T. Leddig, B. G. Pushpawela, R. Sacco, B. N. Ratcliff, X. C. Lou, W. S. Lockman, C. H. Cheng, H. A. Neal, Roger Barlow, D. Bettoni, Martino Margoni, R. Kowalewski, M. Ebert, C. Hearty, M. T. Graham, R. de Sangro, S. L. Wu, M. R. Convery, A. M. Rossi, A. Calcaterra, A. J.S. Smith, R. Gorodeisky, D. J. Summers, A. Roodman, D. A. Roberts, I. Garzia, A. R. Buzykaev, Thomas Latham, E. Fioravanti, C. Patrignani, V. Tisserand, M. Bomben, A. Beaulieu, A. Hafner, L. Vitale, Roland Waldi, V. Santoro, F. Ferroni, E. M. T. Puccio, F. Martinez-Vidal, Dominik Müller, Paul Fraser Harrison, H. Ahmed, D. B. MacFarlane, R. Godang, Stephen Robert Wagner, D. N. Brown, A. G. Denig, Yu. G. Kolomensky, Matteo Rama, S. Prell, James H Cochran, V. Poireau, Marcello Rotondo, V. P. Druzhinin, L. M. Cremaldi, D. G. Hitlin, P. Taras, Nicola Neri, J. P. Coleman, Giulia Casarosa, G. Wormser, R. F. Schwitters, T. Schroeder, O. Grünberg, W. Dunwoodie, Jean-Pierre Lees, Christian Voß, E. A. Kravchenko, Crisostomo Sciacca, D. Aston, James R. Wilson, G. Eigen, P. Ongmongkolkul, R. Stroili, Marcin Chrzaszcz, E. P. Solodov, T. S. Miyashita, M. Bellis, C. Bünger, J. Kim, A. Jawahery, G. Cibinetto, W. J. Wisniewski, S. Passaggio, V. B. Golubev, A. Palano, David Hutchcroft, P. Patteri, C. Cartaro, R. Faccini, F. Ferrarotto, A. J. Lankford, G. A. Cowan, J. Va’vra, D. Gamba, N. Guttman, and G. Marchiori
Subjects: Nuclear physics, Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, 0103 physical sciences, 010306 general physics, 01 natural sciences, Lepton, Universality (dynamical systems)
Abstract: Using a sample of (470.9 +- 2.8) x 10^6 BB-bar pairs, we measure the decay branching fraction B(B^0 -> D^*- pi^+ pi^- pi^+) = (7.26 +- 0.11 +- 0.31) x 10^-3, where the first uncertainty is statistical and the second is systematic. Our measurement will be helpful in studies of lepton universality by measuring B(B^0 -> D^*- tau^+ nu_tau) using tau^+ -> pi^+ pi^- pi^+ nu-bar_tau decays, normalized to B(B^0 -> D^*- pi^+ pi^- pi^+.
Published: 2016

21. Tests ofCPTsymmetry inB0−B¯0mixing and inB0→cc¯K0decays

Author: C. Hearty, A. Roodman, D. J. Summers, R. Cenci, A. G. Denig, A. Zallo, E. Fioravanti, L. Vitale, Roland Waldi, F. Martinez-Vidal, Dominik Müller, A. M. Eisner, F. Ferroni, Tim Adye, R. D. Kass, M. Fritsch, H. Ahmed, Paul Fraser Harrison, Eleonora Luppi, M. V. Purohit, L. M. Cremaldi, F. Di Lodovico, Stephen Robert Wagner, J. Albert, W. Gradl, S. H. Robertson, J. Ocariz, D. J. Payne, R. Godang, F. Simonetto, L. Lanceri, Herbert Koch, J. Dorfan, B. Echenard, K. Griessinger, Peter S. Kim, D. Bernard, F. Forti, F. De Mori, D. G. Hitlin, E. Gabathuler, Abner Soffer, Gabriele Simi, B. N. Ratcliff, Florian Urs Bernlochner, F. Palombo, T. Lueck, W. R. Innes, F. C. Porter, C. L. Davis, Maurizio Biasini, T. S. Mattison, J. L. Ritchie, E. Ben-Haim, S. Luitz, S. I. Serednyakov, R. Stroili, P. Taras, Z. C. Huard, V. E. Blinov, M. Rotondo, N. Arnaud, M. Bomben, Nicola Neri, G. R. Bonneaud, C. Hast, D. J. Lange, G. Piredda, X. C. Lou, J. M. Roney, Owen Rosser Long, G. De Nardo, B. G. Pushpawela, P. Ongmongkolkul, W. Panduro Vazquez, J. P. Coleman, A. Filippi, F. Anulli, Giulia Casarosa, M. Ebert, K. R. Schubert, C. H. Cheng, J. A. Ernst, Roger Barlow, Martino Margoni, Alessandro Gaz, J. G. Smith, R. Y. So, M. Röhrken, G. J. King, T. J. Gershon, G. Wormser, G. Rizzo, M. Rama, J. Va’vra, R. de Sangro, S. L. Wu, A. M. Rossi, M. Chrzaszcz, C. Voß, J. A. McKenna, G. Calderini, R. Cowan, Joseph Izen, S. Bettarini, T. Schroeder, James R. Wilson, A. P. Onuchin, L. Sun, R. C. Field, Elisa Manoni, Adrian John Bevan, N. Tasneem, M. Heß, Alessandro Pilloni, Yu. I. Skovpen, S. Martellotti, E. Paoloni, I. M. Peruzzi, W. Dunwoodie, G. Finocchiaro, D. Gamba, V. Luth, D. R. Peimer, M. Verderi, Aidan Randle-Conde, M. S. Alam, E. A. Kravchenko, Andrei Gritsan, G. Eigen, Crisostomo Sciacca, D. Aston, J. J. Walsh, M. T. Graham, J. P. Lees, F. F. Wilson, F. Bianchi, I. M. Nugent, D. N. Brown, S. Dittrich, Sw. Banerjee, Roberto Calabrese, U. Mallik, S. Prell, Stephen Sekula, S. Emery, N. Guttman, M. Piccolo, E. P. Solodov, T. E. Latham, M. Carpinelli, B. Oberhof, James H Cochran, V. Poireau, T. S. Miyashita, D. S. Chao, C. Bozzi, G. D. Lafferty, K. Honscheid, G. Marchiori, G. Batignani, A. Oyanguren, R. Kowalewski, M. Davier, J. W. Gary, K. Yu. Todyshev, M. Posocco, D. W. G. S. Leith, V. Santoro, S. Akar, C. Touramanis, H. A. Neal, R. Cheaib, J. Chauveau, O. Grünberg, A. Lusiani, V. P. Druzhinin, Yu G. Kolomensky, T. Leddig, D. Bettoni, W. S. Lockman, A. R. Buzykaev, J. M. LoSecco, A. Beaulieu, C. Cartaro, B. Dey, M. Bellis, M. R. Convery, I. Garzia, R. F. Schwitters, C. Patrignani, V. Tisserand, C. H. Chen, S. M. Spanier, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, Douglas Wright, G. A. Cowan, V. B. Golubev, A. Palano, A. Calcaterra, David Hutchcroft, P. Patteri, A. M. Lutz, W. J. Wisniewski, S. Passaggio, C. Bünger, J. Kim, A. Jawahery, G. Cibinetto, R. Gorodeisky, D. A. Roberts, A. Hafner, E. M. T. Puccio, D. B. MacFarlane, B. T. Meadows, G. Raven, M. D. Sokoloff, E. Grauges, Mario Giorgi, P. R. Burchat, Colin Jessop, R. Prepost, G. Vasseur, R. Sacco, K. T. Flood, A. J.S. Smith, B. Bhuyan, B. G. Fulsom, and M. K. Sullivan
Subjects: Physics, 010308 nuclear & particles physics, CPT symmetry, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, BaBar experiment, 010306 general physics, 01 natural sciences, Mixing (physics), Bar (unit)
Abstract: Using the eight time dependences for the decays Upsilon(4S)-> B0 B0bar -> fj fk with the dacay into a flavor-specific state fj = ell+- X before or after the decay into a CP eigenstate fk = c cbar KS,KL, as measured by the BABAR experiment, we determine the three CPT-sensitive parameters Re(z) and Im(z) in B0-B0bar mixing and |Abar/A| in B0 -> c cbar K0 decays. We find Im(z) = 0.010 +- 0.030 +- 0.013, Re(z) = -0.065 +- 0.028 +- 0.014, and |Abar/A| = 0.999 +- 0.023 +- 0.017, in agreement with CPT symmetry.
Published: 2016

22. Measurement of the neutralDmeson mixing parameters in a time-dependent amplitude analysis of theD0→π+π−π0decay

Author: J. A. McKenna, E. Paoloni, J. L. Ritchie, S. I. Serednyakov, M. Rotondo, Elisa Manoni, G. De Nardo, R. Y. So, Debbie Payne, M. Röhrken, B. N. Ratcliff, C. Bünger, Alessandro Pilloni, Giulia Casarosa, G. Wormser, D. E. Hutchcroft, M. T. Graham, J. Kim, R. Sacco, D. R. Peimer, T. Leddig, A. Jawahery, Andrei Gritsan, G. Cibinetto, E. Gabathuler, T. Schroeder, W. R. Innes, Florian Urs Bernlochner, R. F. Schwitters, F. C. Porter, F. Palombo, T. Lueck, A. G. Denig, A. J.S. Smith, W. Dunwoodie, F. Simonetto, W. S. Lockman, A. M. Eisner, Yu. I. Skovpen, G. R. Bonneaud, M. Chrzaszcz, E. Ben-Haim, C. Voß, Yu. G. Kolomensky, A. Oyanguren, M. Piccolo, G. Batignani, M. R. Convery, S. Akar, X. C. Lou, C. Touramanis, Douglas Wright, S. Emery, O. Grünberg, M. V. Purohit, F. Forti, G. Marchiori, J. Albert, T. S. Mattison, B. T. Meadows, Sw. Banerjee, G. Raven, R. Faccini, F. Ferrarotto, A. J. Lankford, M. Bomben, M. D. Sokoloff, S. Luitz, P. R. Burchat, C. Hast, D. J. Lange, R. Cenci, G. Piredda, W. Panduro Vazquez, F. Le Diberder, B. Bhuyan, Roger Barlow, Martino Margoni, R. C. Field, B. G. Fulsom, Gabriele Simi, R. Gorodeisky, G. Finocchiaro, V. Luth, A. Zallo, T. J. Gershon, C. L. Davis, D. W. G. S. Leith, D. A. Roberts, M. S. Alam, I. M. Peruzzi, F. F. Wilson, A. Calcaterra, B. G. Pushpawela, A. Hafner, F. Bianchi, B. Oberhof, E. M. T. Puccio, S. Prell, S. Dittrich, M. K. Sullivan, K. Yu. Todyshev, M. Fritsch, P. Ongmongkolkul, James H Cochran, V. Poireau, M. Heß, D. B. MacFarlane, Eleonora Luppi, A. Lusiani, V. P. Druzhinin, Z. C. Huard, J. Dorfan, E. A. Kravchenko, S. Bettarini, George Lafferty, N. Arnaud, Crisostomo Sciacca, D. Aston, G. A. Cowan, E. Grauges, D. Bettoni, F. Anulli, Mario Giorgi, P. Taras, Alessandro Gaz, C. H. Cheng, C. Hearty, S. H. Robertson, I. Garzia, R. de Sangro, S. L. Wu, C. Patrignani, V. Tisserand, Colin Jessop, D. J. Summers, Herbert Koch, R. Prepost, T. E. Latham, L. M. Cremaldi, M. Carpinelli, K. Griessinger, L. Vitale, F. Martinez-Vidal, Dominik Müller, D. G. Hitlin, H. Ahmed, J. Chauveau, W. Gradl, L. Lanceri, J. Va’vra, V. B. Golubev, G. Vasseur, K. T. Flood, A. Palano, D. Gamba, Peter S. Kim, N. Guttman, P. Patteri, A. M. Lutz, W. J. Wisniewski, S. Passaggio, N. Tasneem, J. M. Roney, Aidan Randle-Conde, V. E. Blinov, J. G. Smith, B. Echenard, D. Bernard, G. Rizzo, M. Rama, C. Cartaro, J. P. Lees, M. Verderi, F. Di Lodovico, J. Ocariz, R. Godang, U. Mallik, N. Neri, C. H. Chen, S. M. Spanier, V. Santoro, J. J. Walsh, D. N. Brown, F. De Mori, James R. Wilson, K. R. Schubert, H. A. Neal, G. Calderini, G. Eigen, A. R. Buzykaev, A. Beaulieu, Tim Adye, R. D. Kass, Roberto Calabrese, Maurizio Biasini, J. W. Gary, Owen Rosser Long, R. Cheaib, E. P. Solodov, T. S. Miyashita, J. A. Ernst, A. P. Onuchin, L. Sun, J. M. LoSecco, Adrian John Bevan, B. Dey, R. Kowalewski, M. Ebert, G. J. King, A. M. Rossi, M. Bellis, Joseph Izen, J. P. Coleman, Stephen Sekula, C. Bozzi, K. Honscheid, R. Stroili, M. Posocco, A. Filippi, R. Cowan, A. Roodman, E. Fioravanti, Roland Waldi, F. Ferroni, Paul Fraser Harrison, Stephen Robert Wagner, S. Martellotti, I. M. Nugent, D. S. Chao, M. Davier, and Abner Soffer
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Resonance, Charge (physics), 7. Clean energy, 01 natural sciences, Nuclear physics, Amplitude, Pion, 0103 physical sciences, D meson, High Energy Physics::Experiment, Production (computer science), 010306 general physics
Abstract: We measure the $D^0 - {\bar{D}}^0$ mixing parameters using a time-dependent amplitude analysis of the decay $D^0\to\pi^+\pi^-\pi^0$. The data were recorded with the BABAR detector at center-of-mass energies at and near the $\Upsilon(4S)$ resonance, and correspond to an integrated luminosity of approximately 468.1 ${\rm fb}^{-1}$. The neutral $D$ meson candidates are selected from $D^{*}(2010)^+\to D^0 \pi_s^+$ decays where the flavor at the production is identified by the charge of the low momentum pion, $\pi_s^+$. The measured mixing parameters are $x = (1.5\pm1.2\pm0.6) \%$ and $y = (0.2\pm0.9\pm0.5) \%$, where the quoted uncertainties are statistical and systematic, respectively.
Published: 2016

23. Time-dependent analysis ofB0→KS0π−π+γdecays and studies of theK+π−π+system inB+→K+π−π+γdecays

Author: Giulia Casarosa, Colin Jessop, G. Wormser, R. Prepost, Abner Soffer, R. Faccini, T. Schroeder, G. Lynch, F. Ferrarotto, A. J. Lankford, F. Le Diberder, J. D. Richman, V. B. Golubev, J. L. Ritchie, G. Vasseur, K. T. Flood, D. Su, Maria Roberta Monge, S. I. Serednyakov, A. Palano, M. Piccolo, J. A. McKenna, V. Luth, R. Y. So, S. H. Robertson, Gabriele Simi, G. A. Cowan, V. Prasad, Roberto Calabrese, G. Batignani, R. Andreassen, C. L. Davis, Marcello Rotondo, Herbert Koch, A. G. Denig, B. N. Ratcliff, A. Stocchi, W. R. Innes, D. B. Macfarlane, L. M. Cremaldi, R. Cenci, A. Zallo, F. Forti, Sw. Banerjee, W. Dunwoodie, Stefan Spanier, F. Di Lodovico, J. Ocariz, E. Ben-Haim, M. Fritsch, B. Spaan, J. W. Gary, F. De Mori, C. Cartaro, K. Griessinger, P. Patteri, D. J. Payne, R. Godang, D. G. Hitlin, Eleonora Luppi, U. Uwer, R. Cheaib, R. Stroili, W. Gradl, P. Del Amo Sanchez, Brian Meadows, L. Lanceri, W. J. Wisniewski, M. J. Lee, V. E. Blinov, Nicola Neri, Elisa Manoni, Heiko Lacker, Yu. G. Kolomensky, J. M. LoSecco, Alessandro Pilloni, C. Hearty, P. C. Kim, M. Verderi, E. P. Solodov, T. S. Miyashita, B. Dey, Bogdan Malaescu, G. Rizzo, D. J. Summers, B. Hamilton, M. Ebert, A. Rossi, S. Playfer, R. H. Schindler, P. Roudeau, E. Grauges, Bruce Schumm, G. De Nardo, U. Mallik, Z. C. Huard, Joseph Izen, G. J. King, A. M. Lutz, M. K. Sullivan, M. Röhrken, J. J. Walsh, Sridhara Dasu, E. Gabathuler, F. C. Porter, Dmytro Kovalskyi, Corrado Angelini, A. Roodman, J. P. Lees, R. J. Sobie, Stephen Sekula, J. Dorfan, J. M. Roney, A. Calcaterra, L. Vitale, F. Martinez-Vidal, E. O. Olaiya, Florian Urs Bernlochner, E. Fioravanti, S. Luitz, K. R. Schubert, D. Lopes Pegna, D. R. Peimer, D. Gamba, Roland Waldi, F. Ferroni, Dominik Müller, J. G. Smith, T. Pulliam, S. Passaggio, M. Bellis, T. Lueck, M. Chrzaszcz, James D. Olsen, C. Voß, A. Khan, C. Bozzi, C. Bünger, Paul Fraser Harrison, Marco Bomben, J. Chauveau, Mauro Morandin, Andrei Gritsan, V. Santoro, N. Guttman, F. Palombo, F. Anulli, R. C. Field, H. Ahmed, B. Stugu, K. Honscheid, J. Kim, C. Hast, L. T. Kerth, Douglas Wright, A. Oyanguren, Stephen Robert Wagner, A. Jawahery, C. H. Chen, R. Ayad, N. Tasneem, G. Marchiori, G. Cibinetto, P. Ongmongkolkul, James R. Wilson, D. Aston, S. Martellotti, H. Briand, D. E. Hutchcroft, C. Touramanis, T. Leddig, Aidan Randle-Conde, M. Franco Sevilla, B. Bhuyan, H. R. Band, W. S. Lockman, Yu. I. Skovpen, B. G. Fulsom, M. Posocco, M. Carpinelli, D. N. Brown, M. R. Convery, G. Eigen, P. M. Patel, O. Grünberg, Christopher West, G. R. Bonneaud, H. Neal, H. H. F. Choi, S. Emery, M. J. Lewczuk, F. Simonetto, D. W G S Leith, A. R. Buzykaev, E. A. Kravchenko, G. Calderini, A. Beaulieu, T. S. Mattison, Crisostomo Sciacca, M. Hess, D. J. Lange, G. Piredda, A. Filippi, H. W. Wulsin, W. Panduro Vazquez, R. Cowan, A. Snyder, T. J. Gershon, A. M. Eisner, M. T. Graham, X. C. Lou, M. V. Purohit, Maurizio Biasini, J. Albert, R. F. Schwitters, Owen Rosser Long, A. Seiden, J. A. Ernst, J. R. Fry, C. H. Cheng, A. Adametz, R. de Sangro, S. L. Wu, A. P. Onuchin, W. H. Toki, L. Sun, W. T. Ford, Tim Adye, R. D. Kass, P. Taras, M. Gaspero, Adrian John Bevan, J. P. Coleman, Eugenio Paoloni, Matteo Rama, Simon Akar, G. Onorato, S. Prell, James H Cochran, V. Poireau, G. Raven, Marcello Giorgi, Y. B. Pan, M. D. Sokoloff, P. R. Burchat, D. J. Bard, V. P. Druzhinin, R. Kowalewski, Roger Barlow, Martino Margoni, R. Gorodeisky, T. M. Hong, M. Simard, D. A. Roberts, G. Grosdidier, A. Hafner, E. M. T. Puccio, Denis Derkach, R. Sacco, A. J.S. Smith, I. M. Nugent, D. S. Chao, M. Davier, S. Bettarini, George Lafferty, R. Contri, B. Echenard, D. Bernard, B. G. Pushpawela, D. Bettoni, Alberto Lusiani, G. Finocchiaro, M. S. Alam, Fergus Wilson, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, G. P. Dubois-Felsmann, B. Oberhof, J. Va'Vra, I. M. Peruzzi, K. Yu. Todyshev, F. Bianchi, S. Dittrich, Ph Leruste, and N. Arnaud
Subjects: Physics, 010308 nuclear & particles physics, Radiative decay, 01 natural sciences, Nuclear physics, Research council, 0103 physical sciences, media_common.cataloged_instance, Christian ministry, Russian federation, European union, 010306 general physics, Humanities, media_common
Abstract: This work is supported by the U.S. Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat a l’Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), the Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovacion (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union), the A. P. Sloan Foundation (USA) and the Binational Science Foundation (USA–Israel).
Published: 2016

24. Search for mixing-inducedCPviolation using partial reconstruction ofB¯0→D*+Xℓ−ν¯ℓand kaon tagging

Author: Alessandro Pilloni, D. R. Peimer, R. Ayad, James R. Wilson, H. Briand, A. Adametz, D. Aston, J. J. Walsh, R. H. Schindler, M. Hess, Abner Soffer, A. Roodman, A. Stocchi, A. M. Lutz, F. Simonetto, E. Fioravanti, Roland Waldi, Maria Roberta Monge, F. Ferroni, P. Taras, J. A. McKenna, G. Eigen, C. Cartaro, D. B. Macfarlane, E. Paoloni, D. N. Brown, A. Filippi, J. L. Ritchie, Paul Fraser Harrison, D. Su, S. Bettarini, S. Passaggio, V. E. Blinov, S. I. Serednyakov, V. B. Golubev, G. D. Lafferty, Y. B. Pan, R. Kowalewski, Ju-Young Kim, Stefan Spanier, M. Morandin, U. Uwer, M. Piccolo, R. Stroili, F. Forti, R. Cowan, Stephen Robert Wagner, L. Piemontese, P. Roudeau, M. Gaspero, J. P. Coleman, G. Batignani, R. Y. So, A. Palano, R. Andreassen, F. De Mori, E. Gabathuler, M. K. Sullivan, G. Rizzo, M. Rama, Elisa Manoni, M. T. Graham, S. Prell, A. Calcaterra, D. Gamba, M. J. Lee, Heiko Lacker, E. Ben-Haim, F. C. Porter, Denis Derkach, L. M. Cremaldi, W. T. Ford, W. R. Innes, E. P. Solodov, T. S. Miyashita, James H Cochran, V. Poireau, G. J. King, S. Playfer, B. Hamilton, M. Ebert, X. C. Lou, N. Guttman, Corrado Angelini, Tim Adye, Stephen Sekula, R. D. Kass, J. M. Roney, C. Hearty, B. Stugu, D. J. Bard, B. Spaan, S. Luitz, K. R. Schubert, A. M. Rossi, Joseph Izen, P. C. Kim, D. Lopes Pegna, G. Lynch, P. Patteri, A. Lusiani, G. Marchiori, W. Gradl, V. P. Druzhinin, M. Rotondo, C. H. Chen, S. Martellotti, Maurizio Biasini, D. J. Summers, M. Chrzaszcz, A. Khan, J. G. Smith, R. Contri, J. Chauveau, C. Voß, M. Carpinelli, C. Bozzi, J. Dorfan, L. Lanceri, B. Malaescu, C. Bünger, R. Faccini, F. Ferrarotto, A. J. Lankford, K. Honscheid, Owen Rosser Long, Yu. I. Skovpen, D. G. Hitlin, G. De Nardo, F. Le Diberder, R. J. Sobie, M. Bellis, T. M. Hong, I. M. Nugent, Dmytro Kovalskyi, J. D. Richman, A. Seiden, J. P. Lees, A. Jawahery, L. Vitale, M. Röhrken, F. Martinez-Vidal, G. Finocchiaro, Dominik Müller, Marco Bomben, G. Cibinetto, F. Di Lodovico, J. A. Ernst, Nicola Neri, M. Posocco, D. J. Payne, M. S. Alam, Sw. Banerjee, D. S. Chao, W. Dunwoodie, M. Davier, V. Luth, A. P. Onuchin, L. Sun, Giulia Casarosa, G. Wormser, Gabriele Simi, R. F. Schwitters, F. F. Wilson, V. Prasad, Roberto Calabrese, G. A. Cowan, M. Verderi, T. Pulliam, C. L. Davis, Adrian John Bevan, Bruce Schumm, B. Oberhof, J. Va'Vra, R. C. Field, H. Ahmed, B. Echenard, T. Schroeder, J. Ocariz, R. Godang, K. Yu. Todyshev, H. Neal, D. Bernard, V. Santoro, J. W. Gary, A. G. Denig, B. N. Ratcliff, D. W G S Leith, A. R. Buzykaev, A. Beaulieu, T. S. Mattison, R. Cheaib, D. Bettoni, W. J. Wisniewski, U. Mallik, J. M. LoSecco, Roger Barlow, Martino Margoni, D. J. Lange, G. Piredda, M. R. Convery, H. W. Wulsin, Andrei Gritsan, Christopher West, W. Panduro Vazquez, I. Garzia, C. Patrignani, V. Tisserand, G. P. Dubois-Felsmann, H. H. F. Choi, A. Snyder, T. J. Gershon, S. Emery, Colin Jessop, R. Prepost, A. Oyanguren, C. Touramanis, B. G. Pushpawela, O. Grünberg, D. E. Hutchcroft, G. Vasseur, K. T. Flood, T. Leddig, R. Cenci, A. Zallo, H. R. Band, W. S. Lockman, Yu. G. Kolomensky, M. Fritsch, Eleonora Luppi, Douglas Wright, E. Grauges, Mario Giorgi, Sridhara Dasu, R. Sacco, A. J.S. Smith, R. Gorodeisky, M. Simard, D. A. Roberts, G. Grosdidier, A. Hafner, E. M. T. Puccio, Simon Akar, G. Onorato, B. T. Meadows, G. Raven, M. D. Sokoloff, P. R. Burchat, Enrico Robutti, P. Ongmongkolkul, J. R. Fry, T. E. Latham, C. H. Cheng, M. J. Lewczuk, S. H. Robertson, R. de Sangro, S. L. Wu, E. A. Kravchenko, Herbert Koch, W. H. Toki, Crisostomo Sciacca, K. Griessinger, E. O. Olaiya, A. M. Eisner, Florian Urs Bernlochner, Z. C. Huard, F. Palombo, T. Lueck, James D. Olsen, F. Anulli, M. V. Purohit, C. Hast, Alessandro Gaz, B. Bhuyan, J. Albert, B. G. Fulsom, L. T. Kerth, P. M. Patel, G. R. Bonneaud, G. Calderini, N. Tasneem, Aidan Randle-Conde, M. Franco Sevilla, Ph Leruste, N. Arnaud, Biplab Dey, I. M. Peruzzi, F. Bianchi, and S. Dittrich
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, 01 natural sciences, Decay time, Research council, 0103 physical sciences, media_common.cataloged_instance, CP violation, Russian federation, Christian ministry, European union, 010306 general physics, Humanities, media_common
Abstract: This work is supported by the U.S. Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat a l’Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), the Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Economia y Competitividad (Spain), the Science and Technology Facilities Council (United Kingdom) and the Binational Science Foundation (U.S.-Israel). Individuals have received support from the Marie-Curie IEF program (European Union) and the A. P. Sloan Foundation (USA).
Published: 2016

25. Observation ofB¯→D(*) π+π−ℓ−ν¯Decays ine+e−Collisions at theΥ(4S)Resonance

Author: S. H. Robertson, H. Neal, Herbert Koch, R. H. Schindler, K. Griessinger, J. L. Ritchie, R. Faccini, F. Ferrarotto, A. J. Lankford, D. W G S Leith, A. R. Buzykaev, A. Beaulieu, A. Roodman, A. M. Lutz, F. Le Diberder, S. I. Serednyakov, J. R. Fry, C. H. Cheng, V. E. Blinov, Yu. I. Skovpen, C. H. Chen, G. Rizzo, M. Rama, Dmytro Kovalskyi, J. P. Lees, J. D. Richman, T. Pulliam, J. A. McKenna, V. Santoro, T. S. Mattison, S. Passaggio, R. de Sangro, S. L. Wu, E. Fioravanti, C. Bünger, R. Y. So, L. M. Cremaldi, S. Prell, M. Verderi, R. Godang, T. E. Latham, A. Jawahery, D. J. Lange, Roland Waldi, Douglas Wright, F. Ferroni, G. Piredda, H. W. Wulsin, W. Panduro Vazquez, U. Mallik, Z. C. Huard, R. Andreassen, W. H. Toki, James H Cochran, V. Poireau, G. Cibinetto, V. Luth, G. Lynch, Corrado Angelini, Stephen Sekula, F. De Mori, D. G. Hitlin, A. Snyder, N. Neri, G. A. Cowan, D. J. Bard, A. Lusiani, Abner Soffer, D. Lopes Pegna, Heiko Lacker, T. J. Gershon, V. Prasad, F. Anulli, V. P. Druzhinin, A. M. Eisner, M. R. Convery, R. Cenci, A. Khan, C. Bozzi, A. Zallo, Paul Fraser Harrison, Ju-Young Kim, Christopher West, Maurizio Biasini, D. E. Hutchcroft, T. Leddig, Roberto Calabrese, T. M. Hong, M. J. Lewczuk, K. Honscheid, H. R. Band, C. Hearty, N. Tasneem, W. S. Lockman, E. A. Kravchenko, Gabriele Simi, B. Bhuyan, S. Luitz, D. Gamba, B. G. Fulsom, Owen Rosser Long, A. Seiden, P. C. Kim, Elisa Manoni, K. R. Schubert, C. L. Davis, S. Playfer, D. J. Summers, Crisostomo Sciacca, M. V. Purohit, Roger Barlow, Martino Margoni, Stephen Robert Wagner, N. Guttman, J. A. Ernst, A. Adametz, M. Fritsch, Giulia Casarosa, M. Posocco, Maria Roberta Monge, J. Albert, G. Wormser, V. B. Golubev, R. J. Sobie, Eleonora Luppi, J. Ocariz, J. Chauveau, B. Stugu, L. Vitale, A. P. Onuchin, I. M. Peruzzi, L. Sun, M. Hess, F. Martinez-Vidal, Dominik Müller, E. Paoloni, T. Schroeder, Aidan Randle-Conde, Bruce Schumm, G. Marchiori, P. Taras, A. Filippi, Adrian John Bevan, A. Palano, Alessandro Pilloni, M. Franco Sevilla, R. C. Field, J. W. Gary, H. Ahmed, S. Martellotti, A. Calcaterra, M. Carpinelli, P. Ongmongkolkul, D. R. Peimer, M. Gaspero, R. Cowan, F. Simonetto, A. Stocchi, A. Oyanguren, D. Aston, R. Cheaib, F. Bianchi, B. Malaescu, C. Cartaro, J. P. Coleman, Andrei Gritsan, M. T. Graham, D. B. Macfarlane, Marco Bomben, W. R. Innes, W. J. Wisniewski, S. Dittrich, J. J. Walsh, R. F. Schwitters, F. Forti, C. Touramanis, W. T. Ford, D. Bettoni, A. G. Denig, B. N. Ratcliff, Tim Adye, J. M. LoSecco, I. M. Nugent, R. D. Kass, E. Grauges, X. C. Lou, O. Grünberg, D. N. Brown, B. Dey, P. Roudeau, Mario Giorgi, Y. B. Pan, P. Patteri, R. Kowalewski, G. J. King, Sridhara Dasu, Yu. G. Kolomensky, J. Dorfan, D. S. Chao, Colin Jessop, R. Gorodeisky, M. Simard, D. A. Roberts, R. Prepost, Ph Leruste, N. Arnaud, M. Davier, G. Vasseur, K. T. Flood, E. O. Olaiya, M. J. Lee, Florian Urs Bernlochner, F. Palombo, T. Lueck, James D. Olsen, G. Grosdidier, B. Hamilton, M. Ebert, A. M. Rossi, Joseph Izen, C. Hast, L. T. Kerth, A. Hafner, P. M. Patel, G. R. Bonneaud, E. M. T. Puccio, I. Garzia, G. Calderini, C. Patrignani, V. Tisserand, G. P. Dubois-Felsmann, E. Gabathuler, F. C. Porter, Simon Akar, M. Chrzaszcz, C. Voß, G. Onorato, Sw. Banerjee, W. Dunwoodie, B. T. Meadows, G. Raven, M. D. Sokoloff, P. R. Burchat, R. Sacco, A. J.S. Smith, R. Ayad, James R. Wilson, H. Briand, G. Eigen, Stefan Spanier, M. Morandin, U. Uwer, R. Stroili, E. P. Solodov, T. S. Miyashita, M. Bellis, M. Rotondo, G. De Nardo, M. Röhrken, B. G. Pushpawela, D. Su, M. Piccolo, G. Batignani, E. Ben-Haim, Denis Derkach, F. Di Lodovico, R. Contri, D. J. Payne, G. Finocchiaro, M. S. Alam, B. Echenard, M. K. Sullivan, D. Bernard, J. M. Roney, F. F. Wilson, B. Oberhof, J. Va'Vra, S. Bettarini, J. G. Smith, K. Yu. Todyshev, B. Spaan, H. H. F. Choi, W. Gradl, S. Emery, L. Lanceri, and G. D. Lafferty
Subjects: Physics, Particle physics, Muon, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, 01 natural sciences, B-factory, Isospin, 0103 physical sciences, B meson, 010306 general physics
Abstract: We report on measurements of the decays of B¯ mesons into the semileptonic final states B¯→D^(*)π^(+)π^(-)l^(-)ν¯, where D^(*) represents a D or D^(*) meson and l^(-) is an electron or a muon. These measurements are based on 471×10^(6) BB ¯ pairs recorded with the BABAR detector at the SLAC asymmetric B factory PEP-II. We determine the branching fraction ratios R_{π^{+}π^{-}}^{(*)}=B(B[over ¯]→D^{(*)}π^{+}π^{-}l^{-}ν[over ¯])/B(B[over ¯]→D^{(*)}l^{-}ν[over ¯]) using events in which the second B meson is fully reconstructed. We find R_{π^{+}π^{-}}=0.067±0.010±0.008 and R_{π^{+}π^{-}}^{*}=0.019±0.005±0.004, where the first uncertainty is statistical and the second is systematic. Based on these results and assuming isospin invariance, we estimate that B[over ¯]→D^{(*)}ππl^{-}ν[over ¯] decays, where π denotes either a π^{±} and π^{0} meson, account for up to half the difference between the measured inclusive semileptonic branching fraction to charm hadrons and the corresponding sum of previously measured exclusive branching fractions.
Published: 2016

26. Measurement of theI=1/2Kπ S-wave amplitude from Dalitz plot analyses ofηc→KK¯πin two-photon interactions

Author: J. L. Ritchie, Herbert Koch, S. I. Serednyakov, R. Y. So, K. Griessinger, F. De Mori, A. G. Denig, Brian Meadows, A. Oyanguren, G. J. King, S. Emery, Colin Jessop, K. R. Schubert, F. Di Lodovico, Timothy Gershon, T. Leddig, D. J. Payne, R. Godang, Yu. G. Kolomensky, W. S. Lockman, Biplab Dey, R. Kowalewski, H. A. Neal, M. R. Convery, R. Gorodeisky, D. A. Roberts, J. Chauveau, R. Prepost, C. Touramanis, C. H. Chen, S. M. Spanier, J. R. Smith, B. Bhuyan, D. Bettoni, B. G. Fulsom, R. Stroili, Marcin Chrzaszcz, R. Calabrese, G. Vasseur, K. T. Flood, M. Verderi, A. Hafner, A. Calcaterra, U. Mallik, A. R. Buzykaev, B. N. Ratcliff, Elisa Manoni, A. Roodman, A. M. Lutz, E. M. T. Puccio, A. Beaulieu, R. Cenci, J. M. Roney, M. K. Sullivan, Marco Bomben, W. J. Wisniewski, I. Garzia, James R. Wilson, Thomas Latham, C. Patrignani, A. Zallo, E. A. Kravchenko, V. Tisserand, Yu. I. Skovpen, E. Fioravanti, Maurizio Biasini, Douglas Wright, S. Passaggio, M. Fritsch, D. B. MacFarlane, Z. C. Huard, Miriam Heß, Roland Waldi, M. T. Graham, J. Ocariz, Eleonora Luppi, Andrei Gritsan, Owen Rosser Long, C. Bünger, G. Eigen, F. Ferroni, D. N. Brown, S. Bettarini, George Lafferty, A. Filippi, J. W. Gary, Crisostomo Sciacca, D. Aston, J. A. Ernst, J. Kim, Sw. Banerjee, F. Anulli, R. Cheaib, Alessandro Gaz, A. Jawahery, A. P. Onuchin, R. Cowan, L. Sun, G. Cibinetto, R. Sacco, E. Grauges, Mario Giorgi, Abner Soffer, E. P. Solodov, T. S. Miyashita, Adrian John Bevan, J. M. LoSecco, Alessandro Pilloni, D. R. Peimer, J. J. Walsh, T. S. Mattison, G. R. Bonneaud, Michael R. Pennington, Paul Fraser Harrison, O. Grünberg, C. Hast, D. J. Lange, A. J.S. Smith, D. W. G. S. Leith, G. Piredda, W. Panduro Vazquez, Simon Akar, M. Carpinelli, Stephen Sekula, Tim Adye, M. Bellis, R. D. Kass, J. A. McKenna, E. Gabathuler, C. Bozzi, K. Honscheid, W. R. Innes, F. C. Porter, E. Paoloni, G. Calderini, G. Raven, V. B. Golubev, P. R. Burchat, Fernando Palombo, Stephen Robert Wagner, Christian Voß, Matteo Rama, M. Posocco, A. Palano, S. Prell, J. Dorfan, Michael Sokoloff, James H Cochran, V. Poireau, Roger Barlow, Martino Margoni, Florian Urs Bernlochner, T. Lueck, David Hutchcroft, W. Gradl, P. Ongmongkolkul, L. Lanceri, M. Ebert, N. Tasneem, S. Luitz, P. Patteri, R. C. Field, V. P. Druzhinin, G. Finocchiaro, Aidan Randle-Conde, V. Luth, A. M. Rossi, M. S. Alam, Joseph Izen, M. Piccolo, S. Martellotti, B. Oberhof, N. Arnaud, G. Batignani, K. Yu. Todyshev, B. G. Pushpawela, I. M. Nugent, D. S. Chao, M. Davier, R. F. Schwitters, C. H. Cheng, Alberto Lusiani, G. De Nardo, R. de Sangro, S. L. Wu, M. Röhrken, P. Taras, B. Echenard, D. Bernard, J. P. Coleman, Fergus Wilson, A. M. Eisner, G. Hamel de Monchenault, M. V. Purohit, J. Albert, I. M. Peruzzi, V. Santoro, F. Bianchi, S. Dittrich, V. E. Blinov, G. Rizzo, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, Marcello Rotondo, L. M. Cremaldi, G. A. Cowan, D. G. Hitlin, J. Va’vra, Nicola Neri, D. Gamba, Giulia Casarosa, G. Wormser, N. Guttman, G. Marchiori, T. Schroeder, W. Dunwoodie, F. Simonetto, Jean-Pierre Lees, C. Cartaro, E. Ben-Haim, X. C. Lou, C. Hearty, D. J. Summers, L. Vitale, F. Martinez-Vidal, Dominik Müller, H. Ahmed, F. Forti, Gabriele Simi, C. L. Davis, Peter S. Kim, and S. H. Robertson
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Partial wave analysis, Electron–positron annihilation, Phase (waves), Resonance, Dalitz plot, 01 natural sciences, law.invention, Nuclear physics, Amplitude, law, 0103 physical sciences, 010306 general physics, Collider
Abstract: We study the processes γγ→K^0_SK^±π^∓ and γγ→K^+K^−π^0 using a data sample of 519 fb^(−1) recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e+e− collider at center-of-mass energies at and near the Υ(nS) (n=2, 3, 4) resonances. We observe ηc decays to both final states and perform Dalitz plot analyses using a model-independent partial wave analysis technique. This allows a model-independent measurement of the mass-dependence of the I=1/2 Kπ S-wave amplitude and phase. A comparison between the present measurement and those from previous experiments indicates similar behavior for the phase up to a mass of 1.5 GeV/c^2. In contrast, the amplitudes show very marked differences. The data require the presence of a new a_0(1950) resonance with parameters m=1931±14±22 MeV/c^2 and Γ=271±22±29 MeV.
Published: 2016

27. Collins asymmetries in inclusive chargedKKandKπpairs produced ine+e−annihilation

Author: M. Hess, Alessandro Pilloni, D. R. Peimer, A. M. Eisner, S. Martellotti, M. Rotondo, B. N. Ratcliff, J. L. Ritchie, G. De Nardo, R. Cowan, S. I. Serednyakov, A. Adametz, F. De Mori, M. Röhrken, Z. C. Huard, M. V. Purohit, I. M. Nugent, J. Albert, S. Luitz, P. Taras, R. Y. So, Heiko Lacker, H. A. Neal, Biplab Dey, L. M. Cremaldi, D. S. Chao, F. Anulli, M. Davier, Bruce Schumm, F. Di Lodovico, R. Andreassen, I. M. Peruzzi, A. Calcaterra, B. G. Pushpawela, Yu. I. Skovpen, Alessandro Gaz, F. Bianchi, J. Dorfan, M. Gaspero, S. Dittrich, J. P. Coleman, D. J. Payne, R. Godang, V. Prasad, Roberto Calabrese, Y. B. Pan, R. Kowalewski, D. Bettoni, Ph Leruste, A. R. Buzykaev, K. R. Schubert, N. Arnaud, A. Beaulieu, R. Cenci, R. C. Field, S. H. Robertson, D. G. Hitlin, Simon Akar, A. Oyanguren, A. Zallo, A. Stocchi, Abner Soffer, G. Finocchiaro, V. Luth, M. J. Lee, G. Onorato, J. Chauveau, Marco Bomben, Herbert Koch, Corrado Angelini, A. Filippi, Stephen Sekula, M. S. Alam, B. Hamilton, M. Ebert, J. R. Fry, Andrei Gritsan, Denis Derkach, D. Su, M. Fritsch, C. Cartaro, D. Lopes Pegna, B. T. Meadows, Douglas Wright, A. Khan, G. Raven, K. Griessinger, C. Bozzi, K. Honscheid, A. M. Rossi, R. Contri, M. D. Sokoloff, P. R. Burchat, Dmytro Kovalskyi, Eleonora Luppi, Joseph Izen, R. F. Schwitters, A. Snyder, F. F. Wilson, C. H. Cheng, M. Piccolo, J. P. Lees, C. Touramanis, J. Ocariz, Giulia Casarosa, G. Wormser, R. de Sangro, S. L. Wu, J. W. Gary, M. Posocco, Maria Roberta Monge, I. Garzia, P. Ongmongkolkul, F. Forti, Maurizio Biasini, J. A. McKenna, G. Batignani, K. Yu. Todyshev, Colin Jessop, A. Roodman, Christopher West, B. Echenard, B. Bhuyan, T. Schroeder, R. Prepost, D. Bernard, E. Fioravanti, T. Pulliam, W. Dunwoodie, E. Paoloni, S. Prell, O. Grünberg, E. O. Olaiya, Peter S. Kim, C. Patrignani, V. Tisserand, B. Oberhof, M. J. Lewczuk, James H Cochran, R. Cheaib, F. Simonetto, V. Poireau, Roger Barlow, Martino Margoni, Florian Urs Bernlochner, B. G. Fulsom, P. Roudeau, J. Va’vra, Owen Rosser Long, W. H. Toki, V. Santoro, R. H. Schindler, A. Seiden, R. Sacco, A. Lusiani, X. C. Lou, J. J. Walsh, F. Palombo, T. Lueck, A. G. Denig, S. Bettarini, Roland Waldi, F. Ferroni, Paul Fraser Harrison, H. W. Wulsin, V. E. Blinov, J. A. Ernst, E. Ben-Haim, D. Gamba, G. P. Dubois-Felsmann, V. P. Druzhinin, James D. Olsen, E. A. Kravchenko, Crisostomo Sciacca, D. Aston, T. S. Mattison, G. Vasseur, H. H. F. Choi, K. T. Flood, S. Emery, D. N. Brown, P. M. Patel, G. Rizzo, M. Rama, Stephen Robert Wagner, N. Guttman, Sw. Banerjee, A. P. Onuchin, L. Sun, A. J.S. Smith, C. Hast, D. J. Lange, T. M. Hong, G. Piredda, C. Hearty, L. T. Kerth, B. Stugu, W. Panduro Vazquez, Yu. G. Kolomensky, M. K. Sullivan, W. T. Ford, Adrian John Bevan, T. E. Latham, M. Carpinelli, R. Gorodeisky, D. J. Summers, G. Lynch, J. M. Roney, G. D. Lafferty, E. Grauges, Tim Adye, R. D. Kass, T. J. Gershon, J. M. LoSecco, G. Marchiori, Mario Giorgi, R. J. Sobie, N. Tasneem, B. Spaan, M. Simard, D. A. Roberts, L. Vitale, G. Grosdidier, Sridhara Dasu, F. Martinez-Vidal, Dominik Müller, W. Gradl, L. Lanceri, J. G. Smith, Elisa Manoni, S. Playfer, R. Faccini, F. Ferrarotto, A. J. Lankford, A. Hafner, H. Ahmed, F. Le Diberder, Bogdan Malaescu, Aidan Randle-Conde, E. M. T. Puccio, M. Franco Sevilla, J. D. Richman, M. T. Graham, D. J. Bard, Gabriele Simi, V. B. Golubev, D. B. MacFarlane, C. L. Davis, G. A. Cowan, L. Piemontese, E. Gabathuler, W. R. Innes, F. C. Porter, A. Palano, M. Chrzaszcz, C. Voß, G. R. Bonneaud, G. J. King, D. W. G. S. Leith, G. Calderini, P. Patteri, C. Bünger, A. Jawahery, G. Cibinetto, A. M. Lutz, W. J. Wisniewski, S. Passaggio, D. E. Hutchcroft, T. Leddig, H. R. Band, W. S. Lockman, M. R. Convery, C. H. Chen, S. M. Spanier, M. Verderi, U. Mallik, N. Neri, P. C. Bloom, M. Morandin, U. Uwer, R. Stroili, E. P. Solodov, T. S. Miyashita, M. Bellis, R. Ayad, James R. Wilson, H. Briand, and G. Eigen
Subjects: Quark, Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Electron–positron annihilation, Hadron, Center (category theory), BaBar experiment, High Energy Physics::Experiment, Sign (mathematics), B-factory
Abstract: We present measurements of Collins asymmetries in the inclusive process e^+e^− → h_1h_2X, h_1h_2 = KK, Kπ, ππ, at the center-of-mass energy of 10.6 GeV, using a data sample of 468 fb^(−1) collected by the BABAR experiment at the PEP-II B factory at SLAC National Accelerator Center. Considering hadrons in opposite thrust hemispheres of hadronic events, we observe clear azimuthal asymmetries in the ratio of unlike sign to like sign, and unlike sign to all charged h_1h_2 pairs, which increase with hadron energies. The Kπ asymmetries are similar to those measured for the ππ pairs, whereas those measured for high-energy KK pairs are, in general, larger.
Published: 2015

28. Hadron production viae+e−collisions with initial state radiation

Author: S. I. Serednyakov, E. P. Solodov, S. I. Eidelman, and V. P. Druzhinin
Subjects: Physics, Particle physics, Annihilation, Electron–positron annihilation, Hadron, General Physics and Astronomy, Dalitz plot, Elementary particle, Standard Model, Nuclear physics, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, High Energy Physics::Experiment, Production (computer science), Energy (signal processing)
Abstract: A novel method of studying e{sup +}e{sup -} annihilation into hadrons using initial state radiation at e{sup +}e{sup -} colliders is described. After a brief history of the method, its theoretical foundations are considered. Numerous experiments in which exclusive cross sections of e{sup +}e{sup -} annihilation into hadrons below the center-of-mass energy of 5 GeV have been measured are presented. Some applications of the experimental results to fundamental tests of the standard model are listed.
Published: 2011

29. Measurement of initial-state–final-state radiation interference in the processese+e−→μ+μ−γande+e−→π+π−γ

Author: W. T. Ford, Tim Adye, R. D. Kass, Peter S. Kim, B. Bhuyan, A. Adametz, U. Uwer, B. Oberhof, M. J. Lewczuk, C. Bünger, Corrado Angelini, Stephen Sekula, Roger Barlow, Martino Margoni, E. P. Solodov, T. S. Miyashita, A. Oyanguren, Bruce Schumm, J. L. Ritchie, D. Lopes Pegna, S. I. Serednyakov, B. G. Fulsom, E. A. Kravchenko, Yu. I. Skovpen, Marcello Rotondo, B. N. Ratcliff, T. S. Mattison, J. Va’vra, G. Lynch, R. Cenci, A. Khan, C. Bozzi, K. Honscheid, J. Kim, A. Jawahery, G. Cibinetto, L. M. Cremaldi, Crisostomo Sciacca, D. Aston, C. Hast, A. Zallo, I. M. Peruzzi, P. Taras, D. Gamba, F. De Mori, Y. B. Pan, R. Kowalewski, N. Tasneem, M. Carpinelli, M. Fritsch, G. De Nardo, R. Y. So, V. Prasad, D. J. Lange, G. Piredda, W. Panduro Vazquez, M. Posocco, Gabriele Simi, M. J. Lee, N. Guttman, C. L. Davis, B. Stugu, Andrei Gritsan, Heiko Lacker, Eleonora Luppi, M. Röhrken, R. Andreassen, M. K. Sullivan, H. H. F. Choi, M. Ebert, D. G. Hitlin, F. Palombo, S. Bettarini, C. Voß, H. W. Wulsin, G. Marchiori, J. Ocariz, M. Gaspero, Abner Soffer, George Lafferty, Aidan Randle-Conde, B. Hamilton, V. E. Blinov, S. Emery, M. Hess, A. M. Rossi, M. Bellis, J. P. Coleman, F. Bianchi, C. Cartaro, A. Stocchi, M. Franco Sevilla, Joseph Izen, J. W. Gary, Nicola Neri, Matteo Rama, G. P. Dubois-Felsmann, Denis Derkach, R. Calabrese, S. H. Robertson, Maria Roberta Monge, James G. Smith, S. Dittrich, R. Cheaib, S. Prell, J. A. McKenna, F. Forti, E. Paoloni, K. R. Schubert, B. Spaan, Elisa Manoni, Herbert Koch, D. Su, P. Roudeau, James H Cochran, Giulia Casarosa, G. Wormser, V. Poireau, R. Ayad, S. Martellotti, P. Ongmongkolkul, S. Playfer, M. Piccolo, W. Gradl, Alessandro Pilloni, D. R. Peimer, James R. Wilson, H. Briand, E. Grauges, L. Lanceri, J. M. Roney, Mario Giorgi, J. M. LoSecco, J. R. Fry, R. Cowan, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, Oliver Grünberg, J. Chauveau, J. J. Walsh, G. Rizzo, K. Griessinger, G. Batignani, R. C. Field, J. D. Richman, A. M. Lutz, C. H. Cheng, W. J. Wisniewski, T. Schroeder, Sridhara Dasu, Bogdan Malaescu, G. Finocchiaro, V. Luth, V. P. Druzhinin, R. Contri, M. T. Graham, Brian Meadows, M. S. Alam, R. de Sangro, S. L. Wu, Christopher West, D. J. Bard, W. Dunwoodie, A. Snyder, G. J. King, G. A. Cowan, G. Eigen, Alberto Lusiani, Colin Jessop, R. Prepost, W. H. Toki, S. Passaggio, T. M. Hong, F. Di Lodovico, H. A. Neal, K. Yu. Todyshev, C. Hearty, D. J. Payne, R. Godang, E. O. Olaiya, Z. C. Huard, Biplab Dey, A. M. Eisner, B. Echenard, V. B. Golubev, Maurizio Biasini, Florian Urs Bernlochner, T. Lueck, Fergus Wilson, D. Bernard, I. M. Nugent, R. F. Schwitters, X. C. Lou, A. Palano, Owen Rosser Long, A. Seiden, James D. Olsen, D. J. Summers, A. R. Buzykaev, F. Anulli, G. Vasseur, Timothy Gershon, K. T. Flood, M. V. Purohit, J. Albert, A. Beaulieu, C. Touramanis, J. A. Ernst, L. T. Kerth, S. Luitz, J. Dorfan, A. P. Onuchin, D. N. Brown, R. Stroili, Dmytro Kovalskyi, Marcin Chrzaszcz, David Hutchcroft, L. Sun, J. P. Lees, P. Patteri, B. G. Pushpawela, Adrian John Bevan, Ph Leruste, N. Arnaud, G. R. Bonneaud, D. W. G. S. Leith, G. Calderini, R. J. Sobie, L. Vitale, D. S. Chao, F. Martinez-Vidal, Dominik Müller, V. Santoro, M. Davier, A. Roodman, E. Fioravanti, T. Pulliam, Roland Waldi, F. Ferroni, A. Calcaterra, H. Ahmed, Marco Bomben, F. Simonetto, R. H. Schindler, Douglas Wright, Paul Fraser Harrison, P. M. Patel, Stephen Robert Wagner, E. Ben-Haim, A. G. Denig, Yu. G. Kolomensky, T. Leddig, H. R. Band, W. S. Lockman, Simon Akar, G. Onorato, A. Filippi, G. Raven, M. D. Sokoloff, P. R. Burchat, R. Gorodeisky, M. Simard, D. A. Roberts, G. Grosdidier, A. Hafner, E. M. T. Puccio, D. B. MacFarlane, R. Sacco, A. J.S. Smith, M. R. Convery, Lianqi Wang, Mauro Morandin, C. H. Chen, S. M. Spanier, M. Verderi, U. Mallik, D. Bettoni, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, Sw. Banerjee, L. Piemontese, E. Gabathuler, W. R. Innes, and F. C. Porter
Subjects: Physics, Nuclear and High Energy Physics, Photon, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, media_common.quotation_subject, Resonance, Radiation, 01 natural sciences, Asymmetry, Initial and final state radiation, Nuclear physics, 0103 physical sciences, Pi, High Energy Physics::Experiment, Invariant mass, Atomic physics, 010306 general physics, media_common
Abstract: Charge asymmetry in processes e+ e- --> mu+ mu- gamma and e+ e- --> pi+ pi- gamma is measured using 232 fb-1 of data collected with the BABAR detector at center-of-mass energies near 10.58 GeV. An observable is introduced and shown to be very robust against detector asymmetries while keeping a large sensitivity to the physical charge asymmetry that results from the interference between initial and final state radiation. The asymmetry is determined as afunction of the invariant mass of the final-state tracks from production threshold to a few GeV/c2. It is compared to the expectation from QED for e+ e- --> mu+ mu- gamma and from theoretical models for e+ e- --> pi+ pi- gamma. A clear interference pattern is observed in e+ e- --> pi+ pi- gamma, particularly in the vicinity of the f_2(1270) resonance. The inferred rate of lowest order FSR production is consistent with the QED expectation for e+ e- --> mu+ mu- gamma, and is negligibly small for e+ e- --> pi+ pi- gamma.
Published: 2015

30. Study of thee+e−→K+K−reaction in the energy range from 2.6 to 8.0 GeV

Author: Marcello Rotondo, L. M. Cremaldi, S. Bettarini, D. G. Hitlin, George Lafferty, F. Palombo, R. Sacco, A. Stocchi, B. Oberhof, E. P. Solodov, T. S. Miyashita, A. M. Lutz, G. P. Dubois-Felsmann, Nicola Neri, M. J. Lewczuk, W. J. Wisniewski, R. Godang, R. Ayad, S. Passaggio, Alessandro Pilloni, F. Forti, E. A. Kravchenko, V. B. Golubev, A. Adametz, Oliver Grünberg, Timothy Gershon, A. J.S. Smith, D. R. Peimer, M. Bellis, C. Touramanis, A. Palano, Douglas Wright, Sw. Banerjee, Peter S. Kim, P. Taras, Crisostomo Sciacca, D. Aston, Christopher West, Giulia Casarosa, G. Wormser, S. H. Robertson, S. Emery, David Hutchcroft, R. Cenci, A. Zallo, J. L. Ritchie, P. Patteri, D. Su, M. Piccolo, F. Simonetto, G. Batignani, R. H. Schindler, Herbert Koch, G. De Nardo, M. Röhrken, M. Gaspero, R. Contri, Matteo Rama, James G. Smith, K. Griessinger, S. I. Serednyakov, S. Prell, James H Cochran, G. Lynch, V. Poireau, H. W. Wulsin, V. E. Blinov, C. Bünger, Brian Meadows, T. S. Mattison, R. Gorodeisky, M. Simard, D. A. Roberts, G. Grosdidier, J. Kim, J. R. Fry, C. H. Cheng, T. Schroeder, B. Spaan, G. Rizzo, A. Hafner, E. M. T. Puccio, A. Jawahery, G. Cibinetto, E. Ben-Haim, R. de Sangro, S. L. Wu, B. Echenard, Maurizio Biasini, M. Fritsch, I. M. Peruzzi, F. Bianchi, Eleonora Luppi, W. Gradl, L. Lanceri, Z. C. Huard, B. Malaescu, S. Dittrich, C. Hast, D. J. Lange, G. Piredda, W. Panduro Vazquez, W. H. Toki, A. Calcaterra, R. Y. So, D. Bernard, R. Stroili, Marcin Chrzaszcz, X. C. Lou, R. C. Field, G. Finocchiaro, Yu. I. Skovpen, A. Oyanguren, V. P. Druzhinin, Bruce Schumm, Owen Rosser Long, A. Seiden, J. A. Ernst, Gabriele Simi, V. Luth, A. P. Onuchin, L. Sun, C. Cartaro, D. B. MacFarlane, A. M. Eisner, R. Andreassen, M. S. Alam, C. L. Davis, M. J. Lee, P. Ongmongkolkul, M. Ebert, C. Hearty, J. P. Coleman, Simon Akar, F. Anulli, A. Rossi, S. Luitz, A. Snyder, Dmytro Kovalskyi, James R. Wilson, Colin Jessop, R. Prepost, Adrian John Bevan, Marco Bomben, Andrei Gritsan, G. Onorato, T. M. Hong, A. Filippi, J. P. Lees, Joseph Izen, R. Calabrese, S. Martellotti, M. Carpinelli, C. Voß, William T. Ford, H. Briand, D. J. Summers, B. Bhuyan, B. G. Fulsom, T. Leddig, H. R. Band, W. S. Lockman, G. Raven, M. V. Purohit, J. Dorfan, Elisa Manoni, Abner Soffer, J. Albert, K. Yu. Todyshev, M. R. Convery, R. J. Sobie, Y. B. Pan, D. N. Brown, M. D. Sokoloff, A. G. Denig, P. Roudeau, R. Kowalewski, S. Playfer, P. R. Burchat, Tim Adye, R. D. Kass, B. G. Pushpawela, L. Vitale, I. M. Nugent, F. Martinez-Vidal, Dominik Müller, G. Vasseur, K. T. Flood, J. Va’vra, B. N. Ratcliff, M. K. Sullivan, D. S. Chao, M. Davier, F. De Mori, Ph Leruste, N. Arnaud, M. T. Graham, V. Santoro, Maria Roberta Monge, H. Ahmed, A. Roodman, Heiko Lacker, Denis Derkach, D. Gamba, E. Fioravanti, T. Pulliam, U. Uwer, Roland Waldi, J. A. McKenna, E. Grauges, F. Ferroni, E. Paoloni, Mario Giorgi, J. J. Walsh, Roger Barlow, Sridhara Dasu, Martino Margoni, Paul Fraser Harrison, N. Guttman, Yu. G. Kolomensky, G. R. Bonneaud, B. Stugu, Alberto Lusiani, P. M. Patel, K. R. Schubert, Stephen Robert Wagner, D. W. G. S. Leith, R. F. Schwitters, L. Piemontese, G. Marchiori, Biplab Dey, Fergus Wilson, G. Calderini, R. Faccini, F. Ferrarotto, A. J. Lankford, J. Chauveau, F. Le Diberder, J. D. Richman, D. J. Bard, G. A. Cowan, G. Eigen, E. O. Olaiya, Florian Urs Bernlochner, T. Lueck, James D. Olsen, M. Verderi, L. T. Kerth, N. Tasneem, Aidan Randle-Conde, B. Hamilton, M. Franco Sevilla, U. Mallik, Mauro Morandin, C. H. Chen, S. M. Spanier, J. M. Roney, H. H. F. Choi, M. Hess, F. Di Lodovico, D. J. Payne, R. Cowan, H. A. Neal, A. R. Buzykaev, A. Beaulieu, Corrado Angelini, Stephen Sekula, D. Lopes Pegna, A. Khan, C. Bozzi, K. Honscheid, M. Posocco, D. Bettoni, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, E. Gabathuler, W. R. Innes, F. C. Porter, G. J. King, V. Prasad, J. Ocariz, J. W. Gary, R. Cheaib, and J. M. LoSecco
Subjects: Quantum chromodynamics, Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Amplitude, Photon, Pair production, Meson, Electron–positron annihilation, High Energy Physics::Experiment, Radiation, 7. Clean energy
Abstract: The e^+e^− → K^+K^− cross section and charged-kaon electromagnetic form factor are measured in the e^+e^− center-of-mass energy range (E) from 2.6 to 8.0 GeV using the initial-state radiation technique with an undetected photon. The study is performed using 469 fb^(−1) of data collected with the BABAR detector at the PEP-II2 e^+e^− collider at center-of-mass energies near 10.6 GeV. The form factor is found to decrease with energy faster than 1/E^2 and approaches the asymptotic QCD prediction. Production of the K^+K^− final state through the J/ψ and ψ(2S) intermediate states is observed. The results for the kaon form factor are used together with data from other experiments to perform a model-independent determination of the relative phases between electromagnetic (single-photon) and strong amplitudes in J/ψ and ψ(2S) → K^+K^− decays. The values of the branching fractions measured in the reaction e^+e^− → K^+K^− are shifted relative to their true values due to interference between resonant and nonresonant amplitudes. The values of these shifts are determined to be about ±5% for the J/ψ meson and ±15% for the ψ(2S) meson.
Published: 2015

31. First Observation ofCPViolation inB¯0→DCP(*)h0Decays by a Combined Time-Dependent Analysis ofBABARand Belle Data

Author: P. Lukin, B. R. Ko, J. L. Ritchie, S. I. Serednyakov, G. Schnell, T. Iijima, R. Y. So, B. N. Ratcliff, T. K. Pedlar, Maria Roberta Monge, J. A. McKenna, Mauro Morandin, E. Paoloni, R. Andreassen, T. Kuhr, Andrey Sokolov, V. Bhardwaj, R. F. Schwitters, M. Sumihama, C. H. Chen, S. M. Spanier, A. Adametz, P. Taras, M. Gaspero, O. Seon, Frank Simon, Vladimir Blinov, J. P. Coleman, T. Sumiyoshi, M. J. Lee, J. Dalseno, K. T. Kim, R. Sacco, C. Bünger, V. Prasad, M. Ebert, U. Uwer, R. Gillard, T. S. Mattison, James E. Fast, T. Sanuki, Matteo Rama, James G. Smith, S. Prell, S. K. Choi, L. E. Piilonen, James H Cochran, V. Poireau, Maurizio Biasini, R. Godang, A. Jawahery, L. Pesántez, S. Ogawa, Douglas Wright, I. M. Peruzzi, D. Getzkow, G. Pakhlova, V. P. Druzhinin, E. Solovieva, A. M. Rossi, T. Hara, N. Tasneem, T. M. Hong, K. Sumisawa, P. C. Bloom, Roger Barlow, Martino Margoni, G. Cibinetto, S. Uno, J. G. Shiu, S. Al Said, C. Hast, D. J. Lange, G. Piredda, G. De Nardo, G. Bonvicini, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, J. D. Richman, B. Malaescu, F. Bianchi, P. Pakhlov, K. M. Williams, A. Chen, R. Cenci, Aidan Randle-Conde, W. S. Hou, B. Hamilton, M. Franco Sevilla, G. R. Bonneaud, Giulia Casarosa, G. Wormser, W. Panduro Vazquez, M. Feindt, A. Vinokurova, M. Röhrken, S. Luitz, S. Dittrich, Joseph Izen, A. Roodman, L. Piemontese, P. Ongmongkolkul, Z. C. Huard, E. Fioravanti, T. Pulliam, Roland Waldi, J. Ocariz, S. Yashchenko, B. Spaan, H. Briand, T. Julius, W. Gradl, J. W. Gary, H. W. Wulsin, A. Drutskoy, Y. Onuki, U. Mallik, T. Schroeder, S. Okuno, E. Ribežl, A. Zallo, M. Hess, S. Nishida, L. Lanceri, R. Chistov, E. Nakano, C. Van Hulse, Owen Rosser Long, A. Seiden, M. Masuda, V. Babu, F. Ferroni, Pu Wang, D. J. Bard, A. Oyanguren, L. Li Gioi, Z. Drásal, Gabriele Simi, C. H. Wang, A.E. Bondar, W. Dunwoodie, H. Park, Yongsun Kim, H. Farhat, Jochen Dingfelder, R. Cheaib, R. C. Field, S. H. Kim, P. Krokovny, E. Gabathuler, W. R. Innes, F. C. Porter, S.E. Vahsen, Timothy Gershon, Rakesh Kumar, A. Bozek, G. A. Cowan, G. Finocchiaro, V. Luth, A. Zupanc, G. Rizzo, W. T. Ford, C. Schwanda, Tim Adye, R. D. Kass, J. A. Ernst, Bruce Schumm, Y. J. Kwon, A. M. Lutz, C. L. Davis, G. B. Mohanty, Paul Fraser Harrison, V.M. Aulchenko, C. Touramanis, Z. P. Zhang, E. L. Barberio, Alberto Lusiani, P. M. Patel, T. Nanut, K. Trabelsi, T. Tsuboyama, W. J. Wisniewski, O. Schneider, K. H. Kang, K. Cho, C. Voß, D. N. Brown, Z. Doležal, M. S. Alam, Stephen Robert Wagner, Christopher West, M. Nayak, V. Vorobyev, F. Anulli, C. P. Shen, D. Su, R. Stroili, R. Mizuk, Y. Yusa, A. Snyder, R. Calabrese, Dipanwita Dutta, Alessandro Gaz, Marcello Rotondo, S. H. Robertson, D. H. Lee, A. P. Onuchin, L. Sun, S. Martellotti, M. Carpinelli, Marcin Chrzaszcz, J. M. LoSecco, M. Fritsch, Elisa Manoni, B. G. Pushpawela, T. Leddig, S. Passaggio, M. Piccolo, B. Pal, H. R. Band, D. Joffe, F. Simonetto, Y. Teramoto, B. G. Cheon, C. Cartaro, Biplab Dey, Y. B. Hsiung, H. H. F. Choi, S. Playfer, R. H. Schindler, X. H. He, L. M. Cremaldi, A.S. Kuzmin, R. Cowan, Herbert Koch, A. Calcaterra, W. S. Lockman, S. Emery, Fergus Wilson, M. Shapkin, M. Z. Wang, K. Kinoshita, U. Tamponi, Andrei Gritsan, A. Rostomyan, K. Yu. Todyshev, Yu. I. Skovpen, Y. Watanabe, Hiroaki Aihara, G. Batignani, I. M. Nugent, M. T. Graham, T. Aushev, V. B. Golubev, J. Yamaoka, J. Chauveau, F. De Mori, A. Moll, Marko Petrič, T. Uglov, E. P. Solodov, Adrian John Bevan, Dmytro Kovalskyi, K. Chilikin, M. R. Convery, K. Griessinger, V. Chekelian, B. Oberhof, P. Lewis, F. Di Lodovico, T. S. Miyashita, D. S. Chao, Heiko Lacker, J. P. Lees, A. Garmash, A. Palano, Eleonora Luppi, I. Adachi, G. J. King, M. J. Lewczuk, C. C. Zhang, Alessandro Pilloni, Denis Bernard, D. J. Payne, M. Davier, Vladimir Zhulanov, K. Arinstein, T. Ferber, R. Itoh, Brian Meadows, C. Z. Yuan, T. A. Shibata, H. Miyata, E. Ben-Haim, M. E. Sevior, I. S. Lee, E. A. Kravchenko, D. Cinabro, N. K. Nisar, L. Santelj, D. R. Peimer, P. Goldenzweig, D. G. Hitlin, Peter S. Kim, H. A. Neal, J. Dorfan, P. Roudeau, S.I. Eidelman, V.E. Shebalin, David Hutchcroft, K. R. Schubert, I. Jaegle, W. Ostrowicz, X. C. Lou, Jyoti Prakash Biswal, Crisostomo Sciacca, D. Aston, M. Starič, F. Palombo, B. Bhuyan, J. Va’vra, S. Korpar, Y. S. Sohn, R. Contri, K. K. Joo, C. Hearty, Y. Sakai, D. Matvienko, G. Inguglia, E. Won, J. B. Kim, A. M. Bakich, Sw. Banerjee, V. Santoro, Y. M. Goh, B. G. Fulsom, Yuki Sato, K. Hayasaka, D. Gamba, Nicola Neri, T. E. Browder, D. W. G. S. Leith, D. J. Summers, P. Chang, H. Nakazawa, P. Patteri, R. Pestotnik, D. M. Asner, M. Verderi, Ph Leruste, S. Sandilya, A. Abdesselam, M. Bomben, R. J. Sobie, N. Arnaud, A. R. Buzykaev, L. Vitale, A. Bobrov, N. Guttman, F. Martinez-Vidal, J. Haba, Dominik Müller, N. Gabyshev, D. Červenkov, A. Beaulieu, V. Gaur, A. J. Schwartz, B. Stugu, Hitoshi Yamamoto, Jung-Hyun Kim, G. Calderini, H. Ahmed, Yoshinobu Unno, K. Senyo, V. Savinov, E. Grauges, P. Vanhoefer, J. M. Roney, G. Lynch, D. Bettoni, B. Echenard, M. K. Sullivan, A. G. Denig, Corrado Angelini, Stephen Sekula, Mario Giorgi, C. Kiesling, G. Marchiori, Y. Iwasaki, D. Lopes Pegna, I. Garzia, A. Khan, Y. B. Pan, R. Kowalewski, Thomas Latham, C. Patrignani, V. Tisserand, M. Bračko, C. Bozzi, S. Bettarini, J. J. Walsh, Sridhara Dasu, Peter Kodys, K. Honscheid, George Lafferty, E. O. Olaiya, J. Libby, B. Golob, Florian Urs Bernlochner, T. Lueck, R. Glattauer, A. Stocchi, G. P. Dubois-Felsmann, James D. Olsen, H. K. Moon, R. Ayad, M. Posocco, Yu. G. Kolomensky, L. T. Kerth, M. Bellis, V.N. Zhilich, Colin Jessop, R. Prepost, Denis Derkach, H. Hayashii, Oliver Grünberg, F. Forti, Y. Usov, A. J.S. Smith, K. Miyabayashi, Seema Bahinipati, James R. Wilson, I. Badhrees, R. Mussa, G. Vasseur, Simon Akar, G. Onorato, A. Ishikawa, A. Filippi, K. T. Flood, M. Nakao, C. W. Park, P. Križan, G. Raven, M. D. Sokoloff, P. R. Burchat, D. Y. Kim, R. Gorodeisky, M. Simard, D. A. Roberts, G. Grosdidier, A. Hafner, E. M. T. Puccio, G. Eigen, D. B. MacFarlane, A. M. Eisner, M. V. Purohit, J. Albert, T. Kawasaki, M. Uchida, V. Chobanova, J. R. Fry, C. H. Cheng, G. S. Varner, R. de Sangro, S. L. Wu, W. H. Toki, M. N. Wagner, and Abner Soffer
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, media_common.quotation_subject, Hadron, General Physics and Astronomy, 01 natural sciences, Omega, Asymmetry, B-factory, Nuclear physics, KEKB, 0103 physical sciences, D meson, CP violation, 010306 general physics, media_common
Abstract: We report a measurement of the time-dependent CP asymmetry of B0->D(*)CP h0 decays, where the light neutral hadron h0 is a pi0, eta or omega meson, and the neutral D meson is reconstructed in the CP eigenstates K+ K-, K0S pi0 or K0S omega. The measurement is performed combining the final data samples collected at the Y(4S) resonance by the BaBar and Belle experiments at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain ( 471 +/- 3 ) x 10^6 BB pairs recorded by the BaBar detector and ( 772 +/- 11 ) x 10^6, BB pairs recorded by the Belle detector. We measure the CP asymmetry parameters -eta_f S = +0.66 +/- 0.10 (stat.) +/- 0.06 (syst.) and C = -0.02 +/- 0.07 (stat.) +/- 0.03 (syst.). These results correspond to the first observation of CP violation in B0->D(*)CP h0 decays. The hypothesis of no mixing-induced CP violation is excluded in these decays at the level of 5.4 standard deviations.
Published: 2015

32. Search for Long-Lived Particles ine+e−Collisions

Author: Abner Soffer, L. Piemontese, E. Gabathuler, F. C. Porter, Sw. Banerjee, Maurizio Martinelli, M. K. Sullivan, P. C. Bloom, W. Dunwoodie, C. Bünger, S. Martellotti, N. Tasneem, D. Bettoni, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, G. P. Dubois-Felsmann, J. M. Roney, M. Carpinelli, R. Godang, Y. B. Pan, Gabriele Simi, A. Jawahery, G. Cibinetto, Aidan Randle-Conde, B. Hamilton, A. G. Denig, B. N. Ratcliff, R. Kowalewski, A. Oyanguren, Bruce Schumm, M. Franco Sevilla, Mauro Morandin, L. Li Gioi, Timothy Gershon, C. Touramanis, E. Feltresi, Colin Jessop, A. Adametz, I. M. Nugent, G. Casarosa, D. Gamba, V. E. Blinov, G. J. King, Stefan Spanier, Maria Roberta Monge, J. A. McKenna, E. Paoloni, D. Payne, G. Wormser, Enrico Robutti, J. L. Ritchie, R. Prepost, M. R. Convery, P. Ongmongkolkul, P. Taras, C. H. Chen, V. B. Golubev, S. I. Serednyakov, Alberto Lusiani, N. Guttman, Denis Derkach, J. Dorfan, B. Bhuyan, B. G. Fulsom, D. S. Chao, B. Stugu, T. Schroeder, Christopher West, G. Rizzo, R. Sacco, G. Marchiori, A. Palano, M. Davier, C. Hearty, Michael Sokoloff, Marcin Chrzaszcz, D. N. Brown, Maurizio Biasini, M. Lo Vetere, T. S. Mattison, P. C. Kim, Biplab Dey, H. H. F. Choi, G. Vasseur, K. T. Flood, S. Emery, B. Malaescu, Yu. G. Kolomensky, R. M. White, Fergus Wilson, D. J. Summers, C. Cartaro, W. R. Innes, M. Gaspero, F. Di Lodovico, R. Y. So, M. J. Lee, David Hutchcroft, Andrei Gritsan, D. J. Lange, G. Piredda, G. Sciolla, M. Ebert, R. J. Sobie, Douglas Wright, C. Voß, H. W. Wulsin, W. Panduro Vazquez, B. G. Pushpawela, V. Prasad, Owen Rosser Long, H. Neal, T. Leddig, R. Andreassen, Dmytro Kovalskyi, L. Vitale, F. Martinez-Vidal, A. M. Rossi, F. De Mori, A. Seiden, Marcello Rotondo, I. M. Peruzzi, E. Grauges, Mario Giorgi, A. Snyder, J. P. Lees, Hossain Ahmed, Joseph Izen, P. Patteri, H. R. Band, Heiko Lacker, J. A. Ernst, J. J. Walsh, D. R. Peimer, E. P. Solodov, A. Roodman, T. S. Miyashita, Dominik Müller, Sridhara Dasu, J. Ocariz, R. Contri, W. S. Lockman, E. Fioravanti, D. W G S Leith, A. R. Buzykaev, P. Roudeau, R. Calabrese, Roland Waldi, T. Pulliam, F. Ferroni, E. O. Olaiya, S. Luitz, K. R. Schubert, F. Bianchi, L. M. Cremaldi, R. Cenci, R. F. Schwitters, A. P. Onuchin, L. Sun, Elisa Manoni, A. Beaulieu, Paul Fraser Harrison, J. W. Gary, M. Perl, S. Playfer, A. J.S. Smith, S. Dittrich, Florian Urs Bernlochner, A. Zallo, Alberto Cervelli, T. Lueck, J. Chauveau, V. Santoro, J. R. Wilson, B. Echenard, P. M. Patel, D. Bernard, M. Piccolo, Stephen Robert Wagner, R. C. Field, A. Calcaterra, James D. Olsen, M. Fritsch, R. Gorodeisky, R. Faccini, F. Simonetto, M. Simard, D. A. Roberts, Adrian John Bevan, Eleonora Luppi, S. Bettarini, George Lafferty, R. Cheaib, R. H. Schindler, Marco Bomben, F. Ferrarotto, A. J. Lankford, Alessandro Pilloni, C. Hast, L. T. Kerth, Corrado Angelini, Stephen Sekula, R. Ayad, D. G. Hitlin, Z. C. Huard, G. Grosdidier, W. H. Toki, B. Oberhof, F. Le Diberder, J. D. Richman, W. J. Wisniewski, Matteo Rama, D. Lopes Pegna, F. Palombo, Oliver Grünberg, A. M. Lutz, James G. Smith, B. Spaan, A. Khan, M. J. Lewczuk, D. Aston, Pablo Villanueva-Perez, S. Prell, C. Bozzi, J. M. LoSecco, W. Gradl, James H Cochran, Sau Lan Wu, A. Hafner, V. Poireau, E. Ben-Haim, Nicola Neri, E. A. Kravchenko, V. Luth, K. Honscheid, L. Lanceri, M. Bellis, Ph Leruste, N. Arnaud, G. R. Bonneaud, E. M. T. Puccio, D. J. Bard, G. A. Cowan, X. C. Lou, J. P. Coleman, F. Anulli, V. P. Druzhinin, M. Verderi, G. Finocchiaro, Alessandro Gaz, S. Passaggio, M. Posocco, S. H. Robertson, T. M. Hong, Crisostomo Sciacca, M. S. Alam, P. Sonnek, Andrea Rodriguez Perez, William T. Ford, H. Briand, M. Hess, Herbert Koch, G. Calderini, U. Mallik, J. Va'Vra, A. M. Eisner, K. Yu. Todyshev, Tim Adye, K. Griessinger, R. D. Kass, S. Pacetti, R. Cowan, Brian Meadows, Simon Akar, M. T. Graham, M. V. Purohit, D. Lindemann, G. Onorato, J. Albert, G. Eigen, A. Filippi, G. Raven, P. R. Burchat, C. L. Davis, G. Lynch, A. Stocchi, Andrei Salnikov, D. B. Macfarlane, Claudio Campagnari, F. Forti, R. Stroili, H. L. Lynch, J. R. Fry, C. H. Cheng, Yu. I. Skovpen, R. de Sangro, U. Uwer, Roger Barlow, Martino Margoni, B. C. Wray, D. Su, G. Batignani, G. De Nardo, and M. Röhrken
Subjects: Physics, Particle physics, Luminosity (scattering theory), Mass distribution, Interaction point, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, Function (mathematics), 7. Clean energy, Nuclear physics, Mass spectrum, High Energy Physics::Experiment
Abstract: We present a search for a neutral, long-lived particle L that is produced in e^+e^− collisions and decays at a significant distance from the e^+e^− interaction point into various flavor combinations of two oppositely charged tracks. The analysis uses an e^+e^− data sample with a luminosity of 489.1 fb^(−1) collected by the BABAR detector at the Υ(4S), Υ(3S), and Υ(2S) resonances and just below the Υ(4S). Fitting the two-track mass distribution in search of a signal peak, we do not observe a significant signal, and set 90% confidence level upper limits on the product of the L production cross section, branching fraction, and reconstruction efficiency for six possible two-body L decay modes as a function of the L mass. The efficiency is given for each final state as a function of the mass, lifetime, and transverse momentum of the candidate, allowing application of the upper limits to any production model. In addition, upper limits are provided on the branching fraction B(B→X_sL), where X_s is a strange hadronic system.
Published: 2015

33. Search for a light Higgs resonance in radiative decays of theϒ(1S)with a charm tag

Author: J. L. Ritchie, L. Piemontese, E. Gabathuler, F. C. Porter, S. I. Serednyakov, R. Y. So, G. De Nardo, V. E. Blinov, M. Röhrken, R. Andreassen, B. Oberhof, G. Rizzo, M. J. Lewczuk, E. A. Kravchenko, R. Gorodeisky, D. Su, M. Simard, D. A. Roberts, G. Grosdidier, H. L. Lynch, Crisostomo Sciacca, M. Piccolo, J. R. Fry, C. H. Cheng, Dmytro Kovalskyi, G. Batignani, J. P. Lees, A. Hafner, R. de Sangro, S. L. Wu, E. M. T. Puccio, W. H. Toki, T. Pulliam, S. H. Robertson, A. Oyanguren, Bruce Schumm, V. Santoro, Herbert Koch, H. H. F. Choi, U. Uwer, A. M. Eisner, S. Emery, P. Ongmongkolkul, Roger Barlow, F. Di Lodovico, Martino Margoni, K. Griessinger, D. J. Payne, Andrei Gritsan, F. De Mori, M. V. Purohit, J. Albert, Simon Akar, G. Onorato, Heiko Lacker, A. Roodman, Brian Meadows, G. J. King, A. Filippi, E. Fioravanti, Roland Waldi, F. Ferroni, W. T. Ford, S. Luitz, K. R. Schubert, G. Raven, Tim Adye, R. D. Kass, M. D. Sokoloff, P. R. Burchat, J. Dorfan, Paul Fraser Harrison, J. Chauveau, M. K. Sullivan, G. R. Bonneaud, Yu. I. Skovpen, P. M. Patel, H. Neal, J. M. Roney, Stephen Robert Wagner, D. W G S Leith, A. R. Buzykaev, A. Beaulieu, S. Martellotti, M. Carpinelli, Z. C. Huard, M. Hess, R. Sacco, I. M. Nugent, R. Cowan, V. Prasad, M. T. Graham, D. S. Chao, G. Calderini, M. Davier, Corrado Angelini, F. Anulli, J. Ocariz, Alessandro Gaz, D. N. Brown, Stephen Sekula, D. Lopes Pegna, A. J.S. Smith, A. Khan, J. W. Gary, M. J. Lee, N. Tasneem, C. Bozzi, B. Bhuyan, B. G. Fulsom, M. Ebert, A. M. Rossi, K. Honscheid, Joseph Izen, R. Cheaib, W. J. Wisniewski, M. Posocco, J. M. LoSecco, Aidan Randle-Conde, B. Hamilton, M. Franco Sevilla, E. O. Olaiya, Florian Urs Bernlochner, T. Lueck, James D. Olsen, C. Hast, L. T. Kerth, Abner Soffer, James R. Wilson, H. Briand, A. Adametz, D. Lindemann, G. Eigen, P. C. Bloom, P. Taras, Alessandro Pilloni, Stefan Spanier, D. R. Peimer, M. Gaspero, J. P. Coleman, R. Stroili, Marcin Chrzaszcz, E. P. Solodov, T. S. Miyashita, D. Aston, R. F. Schwitters, M. Bellis, Maria Roberta Monge, J. A. McKenna, Matteo Rama, James G. Smith, S. Prell, James H Cochran, V. Poireau, E. Paoloni, D. J. Bard, V. P. Druzhinin, T. M. Hong, Maurizio Biasini, B. Malaescu, B. G. Pushpawela, Owen Rosser Long, A. Seiden, C. Voß, S. Bettarini, George Lafferty, J. A. Ernst, R. Ayad, Timothy Gershon, A. P. Onuchin, Oliver Grünberg, L. Sun, R. Contri, B. Echenard, D. Bernard, C. Touramanis, A. Stocchi, Adrian John Bevan, D. B. Macfarlane, Y. B. Pan, F. Forti, R. Kowalewski, T. S. Mattison, Gabriele Simi, C. L. Davis, Denis Derkach, D. J. Lange, G. Piredda, H. W. Wulsin, Sw. Banerjee, W. Dunwoodie, W. Panduro Vazquez, D. Bettoni, A. Snyder, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, G. P. Dubois-Felsmann, G. Lynch, R. Calabrese, Elisa Manoni, S. Playfer, F. Simonetto, A. G. Denig, B. N. Ratcliff, E. Ben-Haim, Yu. G. Kolomensky, X. C. Lou, C. Hearty, D. Gamba, P. C. Kim, A. Calcaterra, D. J. Summers, B. Spaan, N. Guttman, W. Gradl, B. Stugu, Marco Bomben, L. Lanceri, Mauro Morandin, R. J. Sobie, Douglas Wright, C. H. Chen, G. Finocchiaro, L. Vitale, F. Martinez-Vidal, M. S. Alam, Dominik Müller, G. Marchiori, J. Va'Vra, M. Verderi, I. M. Peruzzi, K. Yu. Todyshev, R. C. Field, H. Ahmed, U. Mallik, R. Godang, C. Cartaro, T. Leddig, H. R. Band, W. S. Lockman, F. Bianchi, M. Perl, S. Dittrich, P. Roudeau, M. R. Convery, Christopher West, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, J. D. Richman, R. H. Schindler, Pablo Villanueva-Perez, D. G. Hitlin, E. Grauges, Mario Giorgi, V. Luth, J. J. Walsh, A. M. Lutz, G. A. Cowan, Alberto Lusiani, Sridhara Dasu, Biplab Dey, Fergus Wilson, S. Passaggio, R. Cenci, A. Zallo, V. B. Golubev, M. Fritsch, A. Palano, Eleonora Luppi, Ph Leruste, W. R. Innes, N. Arnaud, Colin Jessop, R. Prepost, David Hutchcroft, P. Patteri, G. Vasseur, Marcello Rotondo, C. Bünger, K. T. Flood, L. M. Cremaldi, A. Jawahery, F. Palombo, G. Cibinetto, Nicola Neri, Giulia Casarosa, G. Wormser, and T. Schroeder
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Pion, Meson, Branching fraction, Electron–positron annihilation, Hadron, Higgs boson, Resonance, Minimal Supersymmetric Standard Model
Abstract: A search is presented for the decay Υ(1S)→ γA^0, A^0 → cc[bar], where A^0 is a candidate for the CP-odd Higgs boson of the next-to-minimal supersymmetric standard model. The search is based on data collected with the BABAR detector at the Υ(2S) resonance. A sample of Υ(1S) mesons is selected via the decay Υ(2S)→π + π − Υ(1S). The A^0 → cc[bar] decay is identified through the reconstruction of hadronic D^0, D^+, and D^∗ (2010)^+ meson decays. No significant signal is observed. The measured 90% confidence-level upper limits on the product branching fraction B(Υ(1S) → γA^0 ) × B(A^0 → cc[bar] ) range from 7.4×10^(−5) to 2.4×10^(−3) for A^0 masses from 4.00 to 8.95 GeV/c^2 and 9.10 to 9.25 GeV/c^2, where the region between 8.95 and 9.10 GeV/c^2 is excluded because of background from Υ(2S) → γχ_(bJ) (1P), χ_(bJ) (1P) → γΥ(1S) decays.
Published: 2015

34. Measurement of the branching fractions of the radiative leptonicτdecaysτ→eγνν¯andτ→μγνν¯atBABAR

Author: F. Di Lodovico, F. Simonetto, D. J. Payne, G. Onorato, A. Filippi, Martino Margoni, B. T. Meadows, W. R. Innes, G. Raven, D. Bettoni, E. Ben-Haim, M. D. Sokoloff, P. R. Burchat, J. L. Ritchie, L. T. Kerth, X. C. Lou, Abner Soffer, R. Godang, M. V. Purohit, Bruce Schumm, W. T. Ford, J. J. Walsh, S. I. Serednyakov, R. Cenci, A. Zallo, Tim Adye, R. D. Kass, Andrei Gritsan, J. Albert, I. Garzia, A. Stocchi, R. Sacco, R. Y. So, Rafe Schindler, C. Patrignani, R. Contri, D. N. Brown, V. Tisserand, Maria Roberta Monge, C. Bünger, M. Fritsch, M. J. Lee, J. Chauveau, J. A. McKenna, V. E. Blinov, R. Andreassen, M. T. Graham, Eleonora Luppi, E. Paoloni, J. Dorfan, L. M. Cremaldi, A. M. Eisner, G. D. Lafferty, Yu. I. Skovpen, D. B. MacFarlane, G. Rizzo, F. Forti, T. Pulliam, H. A. Neal, M. Rama, A. J.S. Smith, R. Gorodeisky, G. Lynch, Sw. Banerjee, Colin Jessop, R. Prepost, F. De Mori, M. Simard, D. A. Roberts, A. Oyanguren, Christopher West, H. L. Lynch, J. R. Fry, A. Adametz, Gabriele Simi, G. Grosdidier, A. Jawahery, Heiko Lacker, A. Hafner, V. Prasad, D. G. Hitlin, G. R. Bonneaud, C. H. Cheng, C. Hearty, C. L. Davis, G. Cibinetto, E. M. T. Puccio, Y. B. Pan, Dmytro Kovalskyi, J. P. Lees, R. Kowalewski, C. Touramanis, C. H. Chen, R. de Sangro, S. L. Wu, K. R. Schubert, D. J. Summers, R. C. Field, G. Vasseur, K. T. Flood, Roberto Calabrese, A. R. Buzykaev, M. S. Alam, B. Echenard, P. C. Kim, L. Piemontese, W. H. Toki, H. W. Wulsin, P. Taras, O. Grünberg, A. Beaulieu, D. Bernard, R. J. Sobie, Abraham Seiden, M. Rotondo, M. Verderi, E. Gabathuler, A. Snyder, F. C. Porter, L. Vitale, P. Roudeau, Giulia Casarosa, Elisa Manoni, N. Arnaud, D. Aston, G. Wormser, S. Playfer, M. Hess, U. Mallik, E. Grauges, F. Martinez-Vidal, Dominik Müller, Mario Giorgi, G. De Nardo, D. J. Bard, M. Röhrken, Denis Derkach, Sridhara Dasu, J. Ocariz, M. R. Convery, N. Neri, M. Chrzaszcz, C. Voß, R. Faccini, F. Ferrarotto, A. J. Lankford, T. Schroeder, M. Gaspero, F. Le Diberder, V. Santoro, J. D. Richman, H. Ahmed, D. E. Hutchcroft, Ph. Leruste, T. Leddig, H. R. Band, Maurizio Biasini, Pablo Villanueva-Perez, B. N. Ratcliff, J. P. Coleman, B. Malaescu, R. Cowan, Biplab Dey, S. Bettarini, G. A. Cowan, J. W. Gary, Owen Rosser Long, I. M. Peruzzi, T. S. Mattison, S. Akar, D. Su, D. Gamba, R. F. Schwitters, M. Ebert, F. Bianchi, V. Poireau, A. M. Lutz, C. Hast, D. J. Lange, Corrado Angelini, M. Piccolo, G. Piredda, S. Dittrich, Stephen Sekula, N. Guttman, B. Stugu, G. Batignani, G. Marchiori, D. Lopes Pegna, R. Cheaib, G. Finocchiaro, A. Khan, A. P. Onuchin, L. Sun, R. Ayad, C. Bozzi, S. Passaggio, T. J. Gershon, K. Honscheid, R. J. Barlow, V. B. Golubev, James G. Smith, Adrian John Bevan, S. Prell, James H Cochran, M. Posocco, A. Palano, F. F. Wilson, A. Lusiani, J. M. LoSecco, V. P. Druzhinin, D. Lindemann, T. M. Hong, K. Yu. Todyshev, W. Dunwoodie, S. Luitz, W. J. Wisniewski, P. Patteri, J. Va’vra, B. G. Pushpawela, G. J. King, B. Spaan, J. A. Ernst, W. Gradl, L. Lanceri, A. Roodman, E. Fioravanti, S. H. Robertson, Herbert Koch, Alessandro Pilloni, D. R. Peimer, Roland Waldi, F. Ferroni, Paul Fraser Harrison, K. Griessinger, P. M. Patel, Stephen Robert Wagner, M. K. Sullivan, S. Martellotti, M. Carpinelli, I. M. Nugent, James R. Wilson, Z. C. Huard, W. Panduro Vazquez, D. S. Chao, V. Luth, G. Eigen, M. Davier, P. C. Bloom, G. P. Dubois-Felsmann, W. S. Lockman, F. Anulli, Stefan Spanier, M. Morandin, Alessandro Gaz, U. Uwer, B. Hamilton, R. Stroili, B. Bhuyan, A. M. Rossi, Joseph Izen, B. G. Fulsom, E. P. Solodov, T. S. Miyashita, B. Oberhof, M. J. Lewczuk, E. A. Kravchenko, Crisostomo Sciacca, T. E. Latham, M. Perl, M. Bellis, Yu G. Kolomensky, A. Calcaterra, E. O. Olaiya, P. Ongmongkolkul, C. Cartaro, Florian Urs Bernlochner, F. Palombo, T. Lueck, Marco Bomben, James D. Olsen, Douglas Wright, A. G. Denig, D. W. G. S. Leith, G. Calderini, N. Tasneem, Aidan Randle-Conde, M. Franco Sevilla, H. H. F. Choi, S. Emery, J. M. Roney, and H. Briand
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, 0103 physical sciences, Radiative transfer, Photon energy, 010306 general physics, 01 natural sciences
Abstract: We perform a measurement of the $\ensuremath{\tau}\ensuremath{\rightarrow}l\ensuremath{\gamma}\ensuremath{\nu}\overline{\ensuremath{\nu}}$ ($l=e,\ensuremath{\mu}$) branching fractions for a minimum photon energy of 10 MeV in the $\ensuremath{\tau}$ rest frame, using $431\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of ${e}^{+}{e}^{\ensuremath{-}}$ collisions collected at the center-of-mass energy of the $\mathrm{\ensuremath{\Upsilon}}(4S)$ resonance with the BABAR detector at the PEP-II storage rings. We find $\mathcal{B}(\ensuremath{\tau}\ensuremath{\rightarrow}\ensuremath{\mu}\ensuremath{\gamma}\ensuremath{\nu}\overline{\ensuremath{\nu}})=(3.69\ifmmode\pm\else\textpm\fi{}0.03\ifmmode\pm\else\textpm\fi{}0.10)\ifmmode\times\else\texttimes\fi{}1{0}^{\ensuremath{-}3}$ and $\mathcal{B}(\ensuremath{\tau}\ensuremath{\rightarrow}e\ensuremath{\gamma}\ensuremath{\nu}\overline{\ensuremath{\nu}})=(1.847\ifmmode\pm\else\textpm\fi{}0.015\ifmmode\pm\else\textpm\fi{}0.052)\ifmmode\times\else\texttimes\fi{}1{0}^{\ensuremath{-}2}$, where the first quoted error is statistical and the second is systematic. These results are substantially more precise than previous measurements.
Published: 2015

35. Dalitz plot analyses ofB0→D−D0K+andB+→D¯0D0K+decays

Author: S. Passaggio, G. Calderini, Ray Franklin Cowan, T. Leddig, A. Soffer, A. Randle-Conde, N. Tasneem, J. Albert, B. Hamilton, I. M. Peruzzi, M. Franco Sevilla, P. C. Kim, E. O. Olaiya, T. Lueck, H. R. Band, D. G. Hitlin, James D. Olsen, C. Hast, L. T. Kerth, F. U. Bernlochner, E. Gabathuler, V. Prasad, R. Prepost, K. Griessinger, B. Spaan, R. J. Sobie, A. Roodman, Y. B. Pan, Brian Meadows, P. F. Harrison, A. M. Eisner, B. C. Wray, H. Neal, R. Kass, U. Uwer, G. Wormser, M. Verderi, C. Chen, M. Bomben, Alberto Lusiani, H. W. Wulsin, W. Panduro Vazquez, D. W G S Leith, J. Chauveau, S. Emery, R. Y. So, Z. C. Huard, R. Faccini, Dominik Müller, H. L. Lynch, R. Andreassen, V. E. Blinov, T. Adye, D. Bettoni, S. Prell, A. Beaulieu, D. Su, Roger Barlow, Biplab Dey, Fergus Wilson, J. R. Fry, A. Snyder, M. V. Purohit, D. S. Chao, T. Schroeder, R. de Sangro, R. Sacco, B. G. Pushpawela, P. Sonnek, A. Gaz, Denis Derkach, M. Biasini, C. Sciacca, A. J. Lankford, R. C. Field, H. Ahmed, R. M. White, A. Adametz, R. Cheaib, N. Guttman, M. Hess, C. Cartaro, S. L. Wu, R. Calabrese, Michael Sokoloff, Yu. I. Skovpen, L. Piemontese, R. Godang, J. L. Ritchie, R. Stroili, A. Calcaterra, S. H. Robertson, Alessandro Pilloni, P. R. Burchat, A. V. Gritsan, D. Gamba, A. G. Denig, B. N. Ratcliff, J. A. Ernst, Elisa Manoni, D. R. Peimer, K. Honscheid, D. J. Payne, W. J. Wisniewski, W. H. Toki, T. S. Mattison, S. Playfer, E. Paoloni, W. Gradl, D. Aston, M. Perl, S. Dittrich, L. Lanceri, M. J. Lee, M. Gaspero, Enrico Robutti, P. Ongmongkolkul, H. H. F. Choi, S. Pacetti, G. Sciolla, Sw. Banerjee, P. Roudeau, J. P. Coleman, R. Contri, J. Cochran, M. Ebert, F. Anulli, L. Li Gioi, R. Kowalewski, J. Va'Vra, C. Hearty, Marcello Rotondo, D. J. Lange, Matteo Rama, Gabriele Simi, E. Ben-Haim, James G. Smith, J. Ocariz, M. T. Graham, Yu. G. Kolomensky, W. S. Lockman, B. Echenard, A. Rossi, J. M. Roney, C. Touramanis, D. A. Roberts, N. Arnaud, F. Di Lodovico, O. Long, B. Oberhof, M. Margoni, F. Ferroni, M. J. Lewczuk, K. Yu. Todyshev, M. Davier, S. Luitz, K. R. Schubert, S. Martellotti, L. Vitale, Dmytro Kovalskyi, E. A. Kravchenko, Corrado Angelini, G. De Nardo, B. Malaescu, J. P. Lees, G. Piredda, D. J. Bard, B. Stugu, H. M. Lacker, G. J. King, V. P. Druzhinin, A. Filippi, G. Rizzo, L. Cremaldi, U. Mallik, M. Carpinelli, M. Röhrken, A. Seiden, D. Lopes Pegna, S. J. Sekula, A. Khan, J. W. Gary, D. Bernard, D. M. Wright, M. S. Alam, A. Oyanguren, C. Bozzi, P. Taras, E. P. Solodov, V. Poireau, S. I. Serednyakov, F. Palombo, T. Pulliam, G. Casarosa, Bruce Schumm, T. M. Hong, E. Fioravanti, J. Dorfan, Roland Waldi, Mauro Morandin, M. Piccolo, A. P. Onuchin, J. D. Richman, L. Sun, W. T. Ford, Alberto Cervelli, Timothy Gershon, J. M. Losecco, G. Marchiori, F. C. Porter, F. De Mori, Pablo Villanueva-Perez, D. N. Brown, M. R. Convery, A. M. Lutz, Nicola Neri, Adrian John Bevan, George Lafferty, C. P. Jessop, V. Santoro, Maurizio Martinelli, Simon Akar, V. Luth, G. A. Cowan, M. K. Sullivan, Christopher West, Ph Leruste, A. R. Buzykaev, G. Onorato, B. G. Fulsom, F. Simonetto, M. A. Giorgi, R. Ayad, G. Batignani, S. Bettarini, F. Bianchi, I. Garzia, I. M. Nugent, Oliver Grünberg, G. R. Bonneaud, G. Raven, Thomas Latham, C. Patrignani, V. Tisserand, G. P. Dubois-Felsmann, P. Patteri, H. Koch, G. Finocchiaro, W. Dunwoodie, S. M. Spanier, R. Gorodeisky, P. M. Patel, C. L. Davis, M. Fritsch, M. Simard, G. Lynch, G. Grosdidier, F. Ferrarotto, E. M. T. Puccio, A. Stocchi, Andrei Salnikov, D. B. Macfarlane, R. Cenci, Claudio Campagnari, Eleonora Luppi, D. J. Summers, B. Bhuyan, E. Grauges, F. Martinez-Vidal, J. J. Walsh, Sridhara Dasu, M. Posocco, K. T. Flood, G. Vasseur, V. B. Golubev, A. J S Smith, A. Palano, F. Le Diberder, M. Lo Vetere, A. Hafner, W. R. Innes, David Hutchcroft, F. Forti, C. Voß, Maria Roberta Monge, J. A. McKenna, S. R. Wagner, R. H. Schindler, A. Zallo, C. Bünger, A. Jawahery, G. Cibinetto, E. Feltresi, P. C. Bloom, C. H. Cheng, Marcin Chrzaszcz, Andrea Rodriguez Perez, H. Briand, X. C. Lou, D. Lindemann, G. Eigen, J. R. Wilson, T. S. Miyashita, J. M. Izen, M. Bellis, and R. F. Schwitters
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Meson, 010308 nuclear & particles physics, 0103 physical sciences, Resonance, Dalitz plot, Invariant mass, B meson, 010306 general physics, 01 natural sciences
Abstract: We present Dalitz plot analyses for the decays of B mesons to D^−D^0K^+ and D^0D^0K^+. We report the observation of the D^∗_(s1)(2700)^+ resonance in these two channels and obtain measurements of the mass M(D^∗_(s1)(2700)+)=2699^(+14)_(−7) MeV/c^2 and of the width Γ(D^∗_(s1)(2700)+)=127^(+24)_(−19) MeV, including statistical and systematic uncertainties. In addition, we observe an enhancement in the D^0K^+ invariant mass around 2350–2500 MeV/c^2 in both decays B^0→D^−D^0K^+ and B^+→D^0D^0K^+, which we are not able to interpret. The results are based on 429 fb^(−1) of data containing 471×10^6BB pairs collected at the Υ(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory.
Published: 2015

36. Study ofCPAsymmetry inB0−B¯0Mixing with Inclusive Dilepton Events

Author: H. A. Neal, V. Prasad, D. J. Bard, P. D. Dauncey, J. Ocariz, J. W. Gary, R. Cheaib, P. Lewis, J. M. LoSecco, Abner Soffer, W. J. Wisniewski, G. J. King, T. S. Mattison, A. R. Buzykaev, M. S. Alam, F. Simonetto, J. Dorfan, T. Pulliam, A. Beaulieu, C. Hast, D. J. Lange, G. Piredda, J. L. Ritchie, J. Chauveau, F. De Mori, Colin Jessop, Douglas Wright, R. Prepost, G. De Nardo, M. Röhrken, Maria Roberta Monge, Z. C. Huard, W. Panduro Vazquez, Matteo Rama, R. Calabrese, S. I. Serednyakov, E. Paoloni, M. Hess, Giulia Casarosa, G. Wormser, A. Stocchi, Andrei Salnikov, Claudio Campagnari, H. L. Lynch, J. R. Fry, C. H. Cheng, R. de Sangro, Elisa Manoni, D. Aston, S. Playfer, V. B. Golubev, James G. Smith, Heiko Lacker, K. R. Schubert, V. Luth, W. S. Lockman, R. Y. So, R. Andreassen, T. Schroeder, Ph Leruste, N. Arnaud, S. L. Wu, E. Ben-Haim, F. Forti, S. Pacetti, A. Palano, D. Bettoni, M. Lo Vetere, A. Rossi, D. B. MacFarlane, G. Rizzo, Alessandro Gaz, S. H. Robertson, S. Prell, James H Cochran, G. Vasseur, V. P. Druzhinin, W. R. Innes, K. T. Flood, R. Gorodeisky, Timothy Gershon, R. Godang, A. Calcaterra, Herbert Koch, Gabriele Simi, M. Ebert, A. Oyanguren, I. M. Peruzzi, M. Simard, D. A. Roberts, David Hutchcroft, M. Perl, K. Griessinger, D. Lindemann, J. A. McKenna, Corrado Angelini, Joseph Izen, C. Touramanis, Stephen Sekula, G. Grosdidier, C. L. Davis, Bruce Schumm, T. M. Hong, R. Cenci, D. Lopes Pegna, C. Cartaro, C. Voß, Marcello Rotondo, X. C. Lou, Brian Meadows, A. Roodman, I. Garzia, A. Hafner, Thomas Latham, S. Luitz, F. Bianchi, P. Patteri, C. Patrignani, G. Sciolla, A. Khan, L. M. Cremaldi, E. M. T. Puccio, A. Zallo, R. Faccini, F. Ferrarotto, A. J. Lankford, D. N. Brown, V. Tisserand, C. Bozzi, B. Bhuyan, J. Va’vra, Yu G. Kolomensky, B. G. Fulsom, F. Le Diberder, S. Dittrich, E. Fioravanti, Roland Waldi, J. D. Richman, K. Honscheid, B. Oberhof, M. J. Lewczuk, R. F. Schwitters, A. G. Denig, F. Ferroni, A. M. Ruland, Pablo Villanueva-Perez, Dmytro Kovalskyi, E. A. Kravchenko, Andrei Gritsan, L. Piemontese, Christopher West, J. P. Lees, M. R. Convery, G. A. Cowan, D. G. Hitlin, M. Posocco, Ray Franklin Cowan, C. Hearty, Simon Akar, F. Palombo, Crisostomo Sciacca, M. Fritsch, G. Onorato, R. C. Field, A. M. Lutz, R. M. White, D. J. Summers, E. Gabathuler, Paul Fraser Harrison, Alberto Lusiani, A. Filippi, F. C. Porter, Nicola Neri, G. Raven, B. N. Ratcliff, M. Bomben, R. J. Sobie, M. D. Sokoloff, M. T. Graham, Eleonora Luppi, P. R. Burchat, Biplab Dey, L. Vitale, Fergus Wilson, F. Martinez-Vidal, Dominik Müller, A. Adametz, S. Passaggio, P. Sonnek, C. Bünger, P. M. Patel, Stephen Robert Wagner, P. Roudeau, Enrico Robutti, P. Ongmongkolkul, L. Li Gioi, P. Taras, H. Ahmed, A. Jawahery, M. K. Sullivan, R. Sacco, G. Cibinetto, D. Gamba, V. Santoro, M. Gaspero, E. Feltresi, S. Martellotti, M. Carpinelli, Abraham Seiden, N. Guttman, A. M. Eisner, J. P. Coleman, B. Stugu, G. Marchiori, E. Grauges, Mario Giorgi, A. J.S. Smith, Sw. Banerjee, J. J. Walsh, D. W. G. S. Leith, Sridhara Dasu, G. Calderini, N. Tasneem, Aidan Randle-Conde, B. Hamilton, M. Franco Sevilla, G. R. Bonneaud, P. C. Kim, E. O. Olaiya, Florian Urs Bernlochner, T. Lueck, James D. Olsen, G. Finocchiaro, K. Yu. Todyshev, B. Spaan, J. A. Ernst, H. Briand, W. Gradl, L. Lanceri, B. C. Wray, D. Su, V. Poireau, M. Piccolo, G. Batignani, M. Mandelkern, W. H. Toki, H. W. Wulsin, Y. B. Pan, R. Kowalewski, M. V. Purohit, J. Albert, Rafe Schindler, Denis Derkach, Maurizio Biasini, B. Malaescu, Owen Rosser Long, A. P. Onuchin, L. Sun, Alberto Cervelli, Adrian John Bevan, Alessandro Pilloni, D. R. Peimer, E. P. Solodov, T. S. Miyashita, J. Bougher, M. Bellis, P. C. Bloom, G. P. Dubois-Felsmann, R. Stroili, Marcin Chrzaszcz, Andrea Rodriguez Perez, James R. Wilson, G. Eigen, H. H. F. Choi, S. Emery, Maurizio Martinelli, J. M. Roney, W. Dunwoodie, B. G. Pushpawela, F. Di Lodovico, D. J. Payne, R. Contri, L. T. Kerth, I. M. Nugent, B. Echenard, D. Bernard, D. S. Chao, M. Davier, S. Bettarini, George Lafferty, R. Ayad, Oliver Grünberg, Mauro Morandin, C. H. Chen, S. M. Spanier, Vladimir Blinov, T. Leddig, H. R. Band, F. Anulli, M. Verderi, A. Snyder, U. Mallik, U. Uwer, Roger Barlow, Martino Margoni, M. J. Lee, Yu. I. Skovpen, G. Lynch, W. T. Ford, Tim Adye, and R. D. Kass
Subjects: Physics, Particle physics, Complete data, Electron–positron annihilation, media_common.quotation_subject, General Physics and Astronomy, Resonance, BaBar experiment, Asymmetry, Standard Model, Nuclear physics, CP violation, Mixing (physics), media_common
Abstract: We present a measurement of the asymmetry A_{CP} between same-sign inclusive dilepton samples l^{+}l^{+} and l^{-}l^{-} (l=e, μ) from semileptonic B decays in ϒ(4S)→BB[over ¯] events, using the complete data set recorded by the BABAR experiment near the ϒ(4S) resonance, corresponding to 471×10^{6} BB[over ¯] pairs. The asymmetry A_{CP} allows comparison between the mixing probabilities P(B[over ¯]^{0}→B^{0}) and P(B^{0}→B[over ¯]^{0}), and therefore probes CP and T violation. The result, A_{CP}=[-3.9±3.5(stat)±1.9(syst)]×10^{-3}, is consistent with the standard model expectation.
Published: 2015

37. Observation of the baryonic decayB¯0→Λc+p¯K−K+

Author: Elisa Manoni, J. P. Coleman, S. Playfer, Sw. Banerjee, Corrado Angelini, C. Hearty, Marcello Rotondo, D. Lopes Pegna, A. Khan, F. Di Lodovico, C. Bozzi, B. Oberhof, M. J. Lewczuk, A. M. Ruland, R. de Sangro, E. A. Kravchenko, D. Bernard, S. I. Serednyakov, F. Palombo, E. P. Solodov, Dmytro Kovalskyi, A. Filippi, G. Rizzo, Andrea Rodriguez Perez, J. P. Lees, R. J. Sobie, A. Roodman, R. Y. So, H. Briand, R. Andreassen, L. Li Gioi, Nicola Neri, T. Leddig, Timothy Gershon, Z. C. Huard, A. Oyanguren, X. C. Lou, G. Wormser, T. Pulliam, Yu. I. Skovpen, K. Honscheid, Maria Roberta Monge, Bruce Schumm, B. C. Wray, I. Garzia, H. R. Band, R. Gorodeisky, Thomas Latham, C. Patrignani, M. Simard, J. A. McKenna, Maurizio Martinelli, S. R. Wagner, V. B. Golubev, P. D. Dauncey, H. Neal, G. Grosdidier, M. K. Sullivan, V. Tisserand, G. P. Dubois-Felsmann, T. Schroeder, A. J. Lankford, R. Kass, D. Su, F. De Mori, S. Passaggio, M. Biasini, F. Ferrarotto, V. Santoro, D. W G S Leith, O. Long, M. A. Giorgi, D. Lindemann, L. Lanceri, A. Beaulieu, E. M. T. Puccio, R. Contri, Y. B. Pan, F. Bianchi, N. Guttman, A. Palano, R. Kowalewski, I. M. Nugent, B. G. Fulsom, A. J S Smith, H. L. Lynch, J. R. Fry, R. Stroili, M. Hess, G. Eigen, H. W. Wulsin, P. Patteri, M. Posocco, N. Arnaud, P. R. Burchat, J. A. Ernst, W. Dunwoodie, A. Calcaterra, Simon Akar, W. Panduro Vazquez, S. Martellotti, M. Mandelkern, F. Le Diberder, E. O. Olaiya, A. Hafner, W. R. Innes, V. E. Blinov, A. R. Buzykaev, G. Onorato, B. Echenard, M. Davier, M. Lo Vetere, A. Snyder, H. Koch, David Hutchcroft, J. Chauveau, M. Perl, S. Dittrich, S. Bettarini, P. C. Bloom, C. H. Cheng, S. Pacetti, K. T. Flood, G. Raven, R. Sacco, G. De Nardo, B. Stugu, H. M. Lacker, M. Margoni, D. Gamba, G. Finocchiaro, H. H. F. Choi, F. Forti, C. Voß, T. Lueck, P. Lewis, J. Ocariz, M. T. Graham, F. Ferroni, S. L. Wu, L. Piemontese, W. H. Toki, D. G. Hitlin, James D. Olsen, G. Piredda, G. Vasseur, G. J. King, D. A. Roberts, K. Griessinger, T. S. Mattison, W. Gradl, U. Mallik, M. Carpinelli, R. Godang, S. J. Sekula, M. Morandin, Ph Leruste, G. Casarosa, E. Gabathuler, C. Touramanis, G. Batignani, Brian Meadows, U. Uwer, S. Luitz, K. R. Schubert, M. V. Purohit, Denis Derkach, Marcin Chrzaszcz, C. Hast, R. Cenci, L. T. Kerth, R. F. Schwitters, J. Va'Vra, W. S. Lockman, R. H. Schindler, Alberto Lusiani, M. Piccolo, K. Yu. Todyshev, J. R. Wilson, J. Dorfan, Biplab Dey, A. Adametz, Fergus Wilson, T. S. Miyashita, P. Sonnek, A. Zallo, L. Vitale, Alessandro Pilloni, A. Randle-Conde, F. Simonetto, C. Bünger, Enrico Robutti, P. Ongmongkolkul, Eleonora Luppi, L. Cremaldi, J. Bougher, B. Spaan, J. M. Izen, P. F. Harrison, A. Jawahery, G. Cibinetto, D. R. Peimer, M. Bellis, M. Verderi, R. M. White, E. Feltresi, R. Faccini, C. Cartaro, D. Aston, D. J. Summers, George Lafferty, J. L. Ritchie, C. P. Jessop, V. Poireau, J. M. Losecco, G. Marchiori, F. C. Porter, D. J. Payne, F. Anulli, B. Bhuyan, E. Paoloni, V. Prasad, E. Grauges, F. Martinez-Vidal, J. J. Walsh, J. M. Roney, Sridhara Dasu, A. M. Eisner, R. Ayad, M. Gaspero, G. Calderini, P. Roudeau, B. Malaescu, D. J. Lange, Oliver Grünberg, G. R. Bonneaud, N. Tasneem, J. Albert, A. Seiden, R. Cheaib, E. Ben-Haim, R. Prepost, A. P. Onuchin, L. Sun, Alberto Cervelli, I. M. Peruzzi, D. Bettoni, W. J. Wisniewski, J. D. Richman, M. Franco Sevilla, Adrian John Bevan, Roger Barlow, S. Prell, B. G. Pushpawela, A. Gaz, Pablo Villanueva-Perez, D. N. Brown, S. H. Robertson, T. Adye, V. Luth, G. A. Cowan, Ray Franklin Cowan, P. C. Kim, F. U. Bernlochner, D. S. Chao, Matteo Rama, W. T. Ford, James G. Smith, Michael Sokoloff, M. Bomben, M. J. Lee, Dominik Müller, G. Sciolla, B. Hamilton, M. Ebert, A. Rossi, D. J. Bard, C. Sciacca, E. Fioravanti, Roland Waldi, V. P. Druzhinin, R. C. Field, H. Ahmed, D. M. Wright, M. S. Alam, P. M. Patel, T. M. Hong, Gabriele Simi, A. M. Lutz, A. Stocchi, Andrei Salnikov, D. B. Macfarlane, Claudio Campagnari, J. W. Gary, P. Taras, S. M. Spanier, C. L. Davis, M. Fritsch, G. Lynch, M. R. Convery, Christopher West, S. Emery, A. Soffer, C. Chen, A. V. Gritsan, A. G. Denig, B. N. Ratcliff, J. Cochran, Yu. G. Kolomensky, and R. Calabrese
Subjects: Nuclear physics, Baryon, Charmed baryons, Physics, Nuclear and High Energy Physics, Branching fraction, Electron–positron annihilation
Abstract: We report the observation of the baryonic decay B^0 → Λ^+_c pK^−K^+ using a data sample of 471×10^6 BB pairs produced in e^+e^− annihilations at √s = 10.58 GeV. This data sample was recorded with the BABAR detector at the PEP-II storage ring at SLAC. We find B(B^0 → Λ^+_c pK^−K^+)=(2.5±0.4_((stat))±0.2_((syst))± 0.6_(B(Λ^+_c)))×10^(−5), where the uncertainties are statistical, systematic, and due to the uncertainty of the Λ^+_c →p K^−π^+ branching fraction, respectively. The result has a significance corresponding to 5.0 standard deviations, including all uncertainties. For the resonant decay B^0 → Λ^+_c pϕ, we determine the upper limit B(B^0 → Λ^+_c pϕ)
Published: 2015

38. Study ofB±,0→J/ψK+K−K±,0and search forB0→J/ψϕatBaBar

Author: Maria Roberta Monge, J. A. McKenna, S. R. Wagner, A. J S Smith, F. Le Diberder, M. Lo Vetere, F. Forti, C. Voß, A. Adametz, Elisa Guido, B. Oberhof, A. Soffer, B. C. Wray, R. Calabrese, G. Wormser, P. C. Bloom, C. H. Cheng, R. J. Sobie, A. Roodman, N. Tasneem, J. Albert, M. J. Lewczuk, D. S. Chao, D. H. Wright, A. P. Wagner, D. Su, P. Lewis, R. Y. So, E. A. Kravchenko, D. Dujmic, Elisa Manoni, R. Andreassen, T. Schroeder, Gabriele Simi, Dmytro Kovalskyi, N. Guttman, C. Chen, S. Playfer, I. M. Peruzzi, M. Franco Sevilla, A. J. Lankford, M. Piccolo, George Lafferty, C. P. Jessop, M. Gaspero, D. Monorchio, A. Filippi, G. Rizzo, G. J. King, M. Morandin, R. Stroili, Sw. Banerjee, M. Mandelkern, R. Ayad, J. P. Coleman, D. J. Lange, J. P. Lees, H. L. Lynch, Jose F Benitez, S. Emery, R. Prepost, W. Dunwoodie, U. Uwer, F. Simonetto, A. M. Lutz, J. R. Fry, C. Hearty, Oliver Grünberg, P. Biassoni, E. Fioravanti, Roland Waldi, Marcello Rotondo, J. Dorfan, G. R. Bonneaud, E. O. Olaiya, S. Passaggio, J. Va'Vra, R. Cenci, Marcin Chrzaszcz, M. Margoni, A. V. Gritsan, A. M. Ruland, T. Lueck, A. G. Denig, B. N. Ratcliff, W. S. Lockman, D. G. Hitlin, J. E. Brau, C. Touramanis, S. L. Wu, A. Stocchi, G. Piredda, U. Mallik, M. Carpinelli, T. Adye, D. Bettoni, P. D. Dauncey, H. Neal, T. Hartmann, James D. Olsen, J. R. Wilson, Alberto Lusiani, C. Hast, K. Yu. Todyshev, Andrei Salnikov, D. B. Macfarlane, S. Luitz, L. T. Kerth, K. R. Schubert, G. Casarosa, H. W. Wulsin, D. Bernard, R. F. Schwitters, P. M. Patel, T. S. Miyashita, R. Kass, R. Gorodeisky, M. Simard, S. I. Serednyakov, F. Palombo, W. Panduro Vazquez, M. Morii, S. Prell, T. Pulliam, Claudio Campagnari, J. Cochran, B. G. Pushpawela, A. Gaz, G. Grosdidier, A. Snyder, Michael Sokoloff, Eleonora Luppi, W. H. Toki, Matteo Rama, Yu. G. Kolomensky, E. P. Solodov, Nicola Neri, D. W G S Leith, V. Prasad, James G. Smith, S. H. Robertson, Y. B. Pan, M. J. Lee, F. Ferrarotto, B. Hamilton, M. Ebert, R. Sacco, E. M. T. Puccio, A. Rossi, B. Lindquist, D. J. Summers, V. Santoro, L. Lanceri, M. V. Purohit, Timothy Gershon, Biplab Dey, G. Calderini, R. Schwierz, R. Contri, D. J. Bard, S. M. Spanier, J. L. Ritchie, B. Echenard, V. P. Druzhinin, C. L. Davis, M. Fritsch, Fergus Wilson, T. Leddig, Denis Derkach, I. Garzia, V. Poireau, D. M. Wright, G. Lynch, M. Davier, H. R. Band, Simon Akar, R. Cheaib, Thomas Latham, C. Patrignani, G. Sciolla, Z. C. Huard, V. Tisserand, M. S. Alam, S. Zambito, A. R. Buzykaev, G. Onorato, G. P. Dubois-Felsmann, P. Sonnek, J. Bougher, T. M. Hong, Enrico Robutti, P. Ongmongkolkul, W. J. Wisniewski, J. M. Izen, S. Bettarini, J. M. Losecco, G. Marchiori, F. C. Porter, L. Cremaldi, M. Posocco, G. Raven, M. Wittgen, M. Bellis, L. Piemontese, E. Ben-Haim, W. T. Meyer, N. B. Sinev, T. S. Mattison, K. T. Flood, D. R. Peimer, V. E. Blinov, Martin Kocian, W. Gradl, Corrado Angelini, Andrea Rodriguez Perez, G. Vasseur, V. Ziegler, R. Frey, J. Chauveau, H. Briand, Ray Franklin Cowan, P. Patteri, D. Aston, X. C. Lou, P. C. Kim, F. U. Bernlochner, A. Randle-Conde, B. Bhuyan, D. Lopes Pegna, D. Gamba, F. Anulli, D. Lindemann, B. Spaan, A. Khan, H. Koch, M. Bomben, G. Eigen, Dominik Müller, M. Verderi, V. B. Golubev, C. Bozzi, G. Finocchiaro, E. Grauges, R. Faccini, J. M. Roney, S. Nelson, C. Sciacca, A. Palano, R. C. Field, H. Ahmed, F. Martinez-Vidal, J. J. Walsh, Sridhara Dasu, Ph Leruste, A. Hafner, W. R. Innes, S. Sitt, K. Griessinger, B. Malaescu, W. F. Wang, J. W. Gary, David Hutchcroft, A. N. Yushkov, R. Godang, P. Taras, D. M. Strom, G. Batignani, M. R. Convery, Brian Meadows, M. Biasini, Christopher West, A. Calcaterra, A. Seiden, A. M. Gabareen, R. H. Schindler, L. Vitale, A. Zallo, P. R. Burchat, J. A. Ernst, S. Pacetti, A. Oyanguren, Bruce Schumm, J. Ocariz, C. Bünger, E. Prencipe, M. T. Graham, M. Perl, F. Ferroni, S. Dittrich, F. De Mori, A. Jawahery, G. Cibinetto, B. G. Fulsom, E. Feltresi, A. P. Onuchin, L. Sun, Alberto Cervelli, Adrian John Bevan, R. M. White, C. Cartaro, D. J. Payne, E. Paoloni, P. Roudeau, L. Li Gioi, O. Long, W. T. Ford, S. Martellotti, G. De Nardo, R. de Sangro, B. Stugu, H. M. Lacker, S. J. Sekula, Yu. I. Skovpen, K. Honscheid, J. D. Richman, Pablo Villanueva-Perez, D. N. Brown, E. Torrence, V. Luth, G. A. Cowan, R. Kowalewski, N. Arnaud, E. Gabathuler, P. F. Harrison, A. M. Eisner, Roger Barlow, Maurizio Martinelli, M. K. Sullivan, M. A. Giorgi, F. Bianchi, I. M. Nugent, H. H. F. Choi, D. A. Roberts, F. Di Lodovico, and U. Nauenberg
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Resonance, Dalitz plot, High Energy Physics::Experiment, B meson, 010306 general physics, 01 natural sciences
Abstract: We study the rare B meson decays B{+-,0} --> J/\psi\ K^+ K^- K{+-,0}, B{+-,0} --> J/\psi\ \phi\ K{+-,0}, and search for B0 --> J/\psi\ \phi, using 469 million BBbar events collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II e+e- asymmetric-energy collider. We present new measurements of branching fractions and a study of the J/\psi\phi mass distribution in search of new charmonium-like states. In addition, we search for the decay B0 --> J/\psi\ \phi, and find no evidence of a signal.
Published: 2015

39. Erratum: Measurement of the absolute branching fractions forDs−→ℓ−ν¯ℓand extraction of the decay constantfDs[Phys. Rev. D82, 091103(R) (2010)]

Author: H. L. Lynch, Colin Jessop, D. M. Strom, V. E. Blinov, A. Adametz, T. M. Karbach, Peter S. Kim, J. E. Brau, V. Prasad, Roberto Calabrese, R. Prepost, O. Hamon, J. Schwiening, Benjamin Henry Hooberman, J. Ocariz, Christopher West, Yu I. Skovpen, F. Simonetto, R. H. Schindler, T. S. Mattison, P. Taras, E. P. Solodov, M. Simard, D. A. Roberts, G. Grosdidier, J. J. Walsh, J. W. Gary, D. W. G. S. Leith, V. B. Golubev, Alessandro Rossi, Abner Soffer, B. Lindquist, C. Hearty, D. J. Summers, M. Tibbetts, M. Bomben, R. J. Sobie, R. Kroeger, L. Vitale, C. Hast, D. J. Lange, G. Piredda, M. Morii, F. Martinez-Vidal, Dominik Müller, B. C. Wray, Ch Yèche, A. T. Watson, X. C. Lou, L. A. Corwin, T. J. Gershon, A. Hafner, D. Su, G. Calderini, H. W. Wulsin, D. N. Brown, J. M. LoSecco, M. Gaspero, M. Weaver, S. Stracka, U. Mallik, B. Pan, Elisa Guido, J. L. Ritchie, Maria Roberta Monge, N. B. Sinev, M. Piccolo, M. T. Allen, J. P. Coleman, G. Lynch, A. Jawahery, I. M. Peruzzi, Achille Stocchi, R. Baldini-Ferroli, G. D. Lafferty, A. Oyanguren, D. Derkach, W. F. Wang, G. Rizzo, M. Rama, P. J. Clark, M. L. Kocian, D. Kirkby, E. Paoloni, G. Cibinetto, S. Paramesvaran, G. Vasseur, G. Batignani, F. U. Bernlochner, G. J. King, C. Touramanis, Y. Pan, C. A. Heusch, D. B. MacFarlane, T. S. Miyashita, J. A. McKenna, M. Bondioli, M. Munerato, Heiko Lacker, E. Feltresi, S. I. Serednyakov, F. Bianchi, R. Andreassen, D. Bettoni, M. J. Lewczuk, M. Mandelkern, R. Bartoldus, Denis Bernard, R. Cenci, A. E. Rubin, Mario Pelliccioni, B. Bhuyan, C. O. Vuosalo, A. P. Onuchin, E. Ben-Haim, Aidan Randle-Conde, G. Onorato, J. P. Morris, B. N. Ratcliff, A. C. Wren, D. Dujmic, A. Zallo, B. G. Fulsom, Elisa Manoni, D. A. Milanes, J. Merkel, C. M. Hawkes, M. Carpinelli, D. Lindemann, I. Bingham, S. Playfer, P. C. Bloom, E. Baracchini, D. H. Wright, C. P. O'Grady, J. F. Benitez, C. Patrignani, B. T. Meadows, G. Raven, Douglas Wright, Shu Li, V. Tisserand, A. V. Telnov, J. Strube, M. D. Sokoloff, R. Schwierz, M. Fritsch, T. Lueck, Gabriele Simi, F. Renga, I. L. Osipenkov, Dmytro Kovalskyi, P. R. Burchat, J. P. Lees, D. A. Doll, M. T. Graham, M. Lo Vetere, L. Piemontese, G. Castelli, A. A. Salnikov, J. Chauveau, C. L. Davis, A. P. Wagner, K. E. Alwyn, S. Bettarini, A. Petzold, C. A. West, E. Gabathuler, W. R. Innes, F. C. Porter, Crisostomo Sciacca, D. Aston, D. J. Asgeirsson, R. Gamet, Eleonora Luppi, B. Franek, W. Park, S. Pacetti, R. Cowan, A. Lazzaro, J. Anderson, M. J. Kobel, T. Schalk, M. Rotondo, A. Palano, M. Pappagallo, M. Zito, A. Volk, C. H. Chen, R. Eckmann, K. T. Flood, M. K. Sullivan, S. B. Zain, Giulia Casarosa, R. Frey, V. Santoro, Sw. Banerjee, M. A. Mazzoni, G. Wormser, S. M. Spanier, R. F. Schwitters, F. Liu, G. De Nardo, L. Wang, P. Biassoni, P. Sonnek, W. T. Meyer, K. J. Knoepfel, J. M. Thompson, Bruce Schumm, H. B. Crawley, M. H. Kelsey, R. Sacco, H. L. Snoek, E. O. Olaiya, J. Kroseberg, C. Lu, M. A. Saeed, G. Cavoto, G. P. Dubois-Felsmann, J. E. Watson, M. Schram, F. Palombo, I. M. Nugent, G. M. Vitug, J. Garra Tico, G. Jackson, J. Prendki, G. R. Bonneaud, James D. Olsen, E. Grauges, J. Dorfan, J. R. Fry, D. E. Hutchcroft, C. Dallapiccola, T. Leddig, Enrico Robutti, P. Ongmongkolkul, P. Patteri, J. Firmino da Costa, N. Gagliardi, E. I. Rosenberg, F. Anulli, J. A. Kolb, L. T. Kerth, Corrado Angelini, Stephen Sekula, D. Lopes Pegna, Mario Giorgi, M. Ebert, H. R. Band, W. S. Lockman, Alessandro Gaz, E. Prencipe, C. H. Cheng, A. J.S. Smith, S. H. Robertson, L. Dong, H. Marsiske, A. Khan, D. S. Bailey, V. P. Druzhinin, M. Battaglia, I. Ofte, T. Schroeder, R. Ayad, X. Nguyen, T. E. Latham, C. Bozzi, S. Emery, Sridhara Dasu, M. Verderi, Ph Leruste, S. Sitt, Herbert Koch, S. Curry, C. J. Schilling, M. Morandin, K. Honscheid, M. Zhao, C. A. Chavez, N. Arnaud, M. R. Convery, A. Perez, Andrei Gritsan, A. M. Lutz, R. de Sangro, N. Lopez-March, A. K. Yarritu, S. L. Wu, Shouheng Sun, R. J. Barlow, W. J. Wisniewski, B. Spaan, K. Yu Todyshev, Claudio Campagnari, M. Davier, X. R. Chen, H. Briand, U. Uwer, V. Ziegler, Maurizio Biasini, W. Gradl, S. Prell, W. Dunwoodie, P. Del Amo Sanchez, S. Passaggio, M. Posocco, W. H. Toki, A. N. Yushkov, L. Lanceri, C. C. Young, F. Forti, R. Stroili, E. C. Martin, A. G. Denig, V. Lombardo, James H Cochran, V. Poireau, H. A. Neal, R. C. Field, A. M. Eisner, D. Monorchio, Marie Helene Schune, Owen Rosser Long, N. L. Blount, G. Finocchiaro, V. Luth, A. Seiden, E. Salvati, L. O. Winstrom, M. S. Alam, P. D. Dauncey, G. Hamel de Monchenault, T. Hartmann, A. Snyder, Mirco Andreotti, F. F. Wilson, A. R. Buzykaev, J. A. Ernst, M. V. Purohit, J. Albert, M. Wittgen, A. Lusiani, L. Sun, K. Wacker, G. Sciolla, Alberto Cervelli, Adrian John Bevan, R. Kowalewski, Yu. G. Kolomensky, M. L. Perl, Z. J. Guo, A. Y. Rakitin, Joseph Izen, A. Roodman, S. Nelson, James R. Wilson, E. Fioravanti, T. Pulliam, Roland Waldi, F. Ferroni, Paul Fraser Harrison, P. M. Patel, Stephen Robert Wagner, J. M. Tuggle, P. Lund, R. Contri, M. Sigamani, K. R. Schubert, A. Calcaterra, H. Atmacan, M. Nicolaci, L. M. Cremaldi, D. P. Stoker, P. Franchini, T. M. Hong, Matteo Negrini, A. M. Ruland, D. G. Hitlin, M. S. Dubrovin, G. Eigen, A. J. Martinez, Nicola Neri, B. Echenard, H. Jasper, Olga Igonkina, A. M. Gabareen, W. T. Ford, Tim Adye, R. D. Kass, G. Mancinelli, E. Torrence, C. L. Lee, A. J. Edwards, M. Bellis, Hyun-Chul Kim, H. Schröder, S. Luitz, K. Suzuki, R. M. White, M. Franco Sevilla, C. Cartaro, Philippe Grenier, F. Di Lodovico, D. J. Payne, P. Roudeau, U. Nauenberg, Prafulla Kumar Behera, L. Li Gioi, J. Va’vra, Martino Margoni, Silvano Tosi, Kenji Hamano, R. Rahmat, A. Petrella, J. Serrano, S. Ahmed, D. Gamba, Maria A. Nagel, B. Malaescu, T. Tanabe, N. Guttman, A. Cecchi, B. Stugu, G. Marchiori, H. H. F. Choi, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, Maurizio Martinelli, J. D. Richman, V. Sordini, J. M. Roney, D. J. Bard, J. Marks, G. A. Cowan, J. G. Smith, E. M.T. Puccio, and R. Godang
Subjects: Nuclear physics, Gravitation, Physics, Nuclear and High Energy Physics, Quantum mechanics, Exponential decay, Branching (polymer chemistry), Cosmology, Ion
Published: 2015

40. Bottomonium spectroscopy and radiative transitions involving theχbJ(1P,2P)states atBaBar

Author: P. Taras, M. Verderi, G. J. King, S. H. Robertson, Herbert Koch, G. Lynch, J. Dorfan, M. Gaspero, U. Mallik, J. P. Coleman, K. Griessinger, T. E. Latham, Dmytro Kovalskyi, Alessandro Pilloni, D. R. Peimer, X. C. Lou, D. Aston, R. Sacco, J. J. Walsh, J. P. Lees, F. Anulli, A. M. Eisner, Giulia Casarosa, G. Wormser, A. Oyanguren, R. Godang, H. H. F. Choi, V. Prasad, Roberto Calabrese, J. L. Ritchie, P. Patteri, D. N. Brown, Gabriele Simi, Abner Soffer, T. Pulliam, C. L. Davis, R. F. Schwitters, B. Bhuyan, S. Emery, J. Ocariz, S. I. Serednyakov, C. Bünger, B. G. Fulsom, T. Schroeder, V. Santoro, E. Grauges, A. J.S. Smith, Mario Giorgi, R. Gorodeisky, C. Touramanis, G. D. Lafferty, R. M. White, M. Simard, D. A. Roberts, J. W. Gary, G. Grosdidier, C. Cartaro, M. V. Purohit, Sridhara Dasu, F. Di Lodovico, R. Cheaib, F. De Mori, A. Hafner, J. Albert, N. Tasneem, E. M. T. Puccio, R. Y. So, D. J. Payne, A. Jawahery, O. Grünberg, V. E. Blinov, M. R. Convery, W. J. Wisniewski, Heiko Lacker, G. Cibinetto, J. M. LoSecco, E. P. Solodov, T. S. Miyashita, R. Andreassen, Christopher West, A. Stocchi, R. Cenci, Aidan Randle-Conde, Elisa Manoni, L. M. Cremaldi, M. J. Lee, A. Zallo, Andrei Salnikov, D. B. Macfarlane, G. Rizzo, D. E. Hutchcroft, E. Feltresi, M. Rama, T. Leddig, C. Hearty, S. Playfer, Chunhui Chen, S. Luitz, K. R. Schubert, M. Franco Sevilla, G. Sciolla, A. M. Ruland, Simon Akar, Claudio Campagnari, H. R. Band, M. Fritsch, Maria Roberta Monge, P. C. Kim, B. Hamilton, M. Ebert, J. A. McKenna, Z. C. Huard, H. L. Lynch, Maurizio Martinelli, G. Onorato, W. S. Lockman, M. K. Sullivan, J. R. Fry, J. Chauveau, A. Filippi, P. Roudeau, D. J. Summers, S. Prell, James H Cochran, V. Poireau, A. M. Rossi, B. Oberhof, Joseph Izen, Eleonora Luppi, C. H. Cheng, B. T. Meadows, V. B. Golubev, G. Raven, E. Paoloni, J. M. Roney, D. G. Hitlin, M. D. Sokoloff, P. R. Burchat, F. Forti, R. J. Sobie, R. Faccini, L. Vitale, A. Roodman, R. de Sangro, S. L. Wu, A. Palano, M. J. Lewczuk, D. J. Bard, J. G. Smith, A. Lusiani, F. Martinez-Vidal, Dominik Müller, E. Fioravanti, F. Ferrarotto, A. J. Lankford, Roland Waldi, F. Le Diberder, Nicola Neri, W. H. Toki, E. A. Kravchenko, F. Ferroni, W. R. Innes, Colin Jessop, R. Prepost, T. S. Mattison, G. R. Bonneaud, V. P. Druzhinin, R. C. Field, Paul Fraser Harrison, H. Ahmed, J. D. Richman, F. Simonetto, D. J. Lange, G. Piredda, H. W. Wulsin, W. Panduro Vazquez, Crisostomo Sciacca, Alessandro Gaz, P. M. Patel, A. Snyder, Stephen Robert Wagner, T. M. Hong, G. Calderini, T. J. Gershon, J. Bougher, G. Vasseur, S. Martellotti, M. Carpinelli, K. T. Flood, Pablo Villanueva-Perez, M. Lo Vetere, E. O. Olaiya, Florian Urs Bernlochner, I. M. Nugent, M. Bellis, F. Palombo, T. Lueck, Enrico Robutti, P. Ongmongkolkul, D. S. Chao, James D. Olsen, M. Davier, V. Luth, R. H. Schindler, C. Hast, L. T. Kerth, Andrea Rodriguez Perez, James R. Wilson, A. M. Lutz, H. Briand, G. A. Cowan, L. Li Gioi, D. Lindemann, Bruce Schumm, S. Passaggio, G. Eigen, M. Roehrken, P. C. Bloom, D. Gamba, P. Lewis, Stefan Spanier, M. Morandin, N. Guttman, U. Uwer, R. Stroili, Andrei Gritsan, B. Stugu, G. Marchiori, M. Hess, S. Pacetti, R. Cowan, M. T. Graham, P. D. Dauncey, H. Neal, D. W G S Leith, A. G. Denig, B. N. Ratcliff, A. R. Buzykaev, A. Beaulieu, Y. B. Pan, R. Kowalewski, Yu. G. Kolomensky, Corrado Angelini, Stephen Sekula, D. Lopes Pegna, Douglas Wright, A. Khan, C. Bozzi, Denis Derkach, K. Honscheid, R. J. Barlow, Maurizio Biasini, B. Malaescu, M. Posocco, Owen Rosser Long, A. Seiden, J. A. Ernst, A. P. Onuchin, L. Sun, Alberto Cervelli, Adrian John Bevan, A. Calcaterra, Marco Bomben, Sw. Banerjee, W. Dunwoodie, W. T. Ford, Tim Adye, R. D. Kass, Yu. I. Skovpen, L. Piemontese, E. Gabathuler, F. C. Porter, Martino Margoni, M. Chrzaszcz, C. Voß, R. Contri, D. Bettoni, G. Finocchiaro, B. Echenard, M. S. Alam, D. Bernard, I. Garzia, C. Patrignani, V. Tisserand, G. P. Dubois-Felsmann, F. F. Wilson, J. Va'Vra, B. G. Pushpawela, K. Yu. Todyshev, Biplab Dey, P. Sonnek, S. Bettarini, I. M. Peruzzi, B. C. Wray, D. Su, M. Piccolo, F. Bianchi, M. Perl, S. Dittrich, R. Ayad, G. Batignani, M. Mandelkern, E. Ben-Haim, B. Spaan, M. Rotondo, W. Gradl, Ph Leruste, N. Arnaud, L. Lanceri, G. De Nardo, and A. Adametz
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Photon, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, 01 natural sciences, Nuclear physics, symbols.namesake, Excited state, 0103 physical sciences, symbols, Radiative transfer, High Energy Physics::Experiment, 010306 general physics, Spectroscopy, Hamiltonian (quantum mechanics)
Abstract: We use (121±1) million Υ(3S) and (98±1) million Υ(2S) mesons recorded by the BABAR detector at the PEP-II e^+e^− collider at SLAC to perform a study of radiative transitions involving the χ_(bJ)(1P,2P) states in exclusive decays with μ^+μ^−γγ final states. We reconstruct twelve channels in four cascades using two complementary methods. In the first we identify both signal photon candidates in the electromagnetic calorimeter (EMC), employ a calorimeter timing-based technique to reduce backgrounds, and determine branching-ratio products and fine mass splittings. These results include the best observational significance yet for the χ_(b0)(2P)→γΥ(2S) and χ_(b0)(1P)→γΥ(1S) transitions. In the second method, we identify one photon candidate in the EMC and one which has converted into an e^+e^− pair due to interaction with detector material, and we measure absolute product branching fractions. This method is particularly useful for measuring Υ(3S)→γχ_(b1,2)(1P) decays. Additionally, we provide the most up-to-date derived branching fractions, matrix elements and mass splittings for χ_b transitions in the bottomonium system. Using a new technique, we also measure the two lowest-order spin-dependent coefficients in the nonrelativistic QCD Hamiltonian.
Published: 2014

41. Search for newπ0-like particles produced in association with aτ-lepton pair

Author: Douglas Wright, A. Stocchi, Andrei Salnikov, A. Roodman, I. M. Peruzzi, Maurizio Martinelli, M. K. Sullivan, E. Fioravanti, D. B. Macfarlane, Roland Waldi, R. Gorodeisky, Claudio Campagnari, J. M. Roney, M. Simard, D. A. Roberts, F. Bianchi, F. Ferroni, W. T. Ford, Tim Adye, M. Perl, S. Dittrich, R. D. Kass, G. Grosdidier, J. G. Smith, R. Cenci, Paul Fraser Harrison, M. Lo Vetere, A. Zallo, V. Prasad, J. L. Ritchie, S. I. Serednyakov, Roberto Calabrese, A. Hafner, E. P. Solodov, Giulia Casarosa, G. Wormser, P. M. Patel, E. M. T. Puccio, T. S. Miyashita, F. Forti, Stephen Robert Wagner, P. Patteri, G. Finocchiaro, J. Ocariz, M. S. Alam, R. Y. So, R. Andreassen, M. Fritsch, Biplab Dey, Enrico Robutti, P. Ongmongkolkul, A. Calcaterra, C. Hearty, Maxim Pospelov, J. W. Gary, P. Sonnek, T. Schroeder, P. C. Kim, F. F. Wilson, Eleonora Luppi, B. Bhuyan, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, D. J. Summers, J. Bougher, R. Cheaib, B. G. Fulsom, J. D. Richman, Gabriele Simi, F. Di Lodovico, Marco Bomben, A. Adametz, G. R. Bonneaud, J. Va'Vra, W. J. Wisniewski, M. Bellis, K. Yu. Todyshev, D. J. Payne, M. J. Lee, Abner Soffer, R. Sacco, C. L. Davis, G. Sciolla, J. M. LoSecco, Pablo Villanueva-Perez, Maurizio Biasini, A. G. Denig, B. Hamilton, M. Ebert, B. N. Ratcliff, B. Malaescu, P. C. Bloom, H. L. Lynch, J. R. Fry, R. J. Sobie, F. De Mori, L. Vitale, Ph Leruste, N. Arnaud, F. Martinez-Vidal, V. Luth, V. E. Blinov, P. Lewis, A. M. Rossi, G. A. Cowan, Joseph Izen, C. H. Cheng, Colin Jessop, Dominik Müller, R. Prepost, Stefan Spanier, Martino Margoni, G. J. King, S. Martellotti, A. J.S. Smith, G. Calderini, M. Morandin, M. Verderi, L. M. Cremaldi, L. Li Gioi, M. Carpinelli, R. C. Field, H. Ahmed, U. Uwer, P. Taras, Simon Akar, Yuri Skovpen, R. de Sangro, J. Dorfan, G. Onorato, Owen Rosser Long, A. Seiden, G. Rizzo, R. Stroili, M. Rama, S. L. Wu, F. Simonetto, N. Tasneem, Heiko Lacker, D. Gamba, A. Filippi, U. Mallik, N. Guttman, B. Stugu, Maria Roberta Monge, W. H. Toki, Z. C. Huard, Andrea Rodriguez Perez, I. M. Nugent, James R. Wilson, G. Raven, D. G. Hitlin, Aidan Randle-Conde, H. Briand, J. A. Ernst, G. Marchiori, M. Franco Sevilla, M. D. Sokoloff, J. A. McKenna, P. R. Burchat, R. Godang, D. S. Chao, Nicola Neri, Dmytro Kovalskyi, J. P. Lees, R. M. White, Chunhui Chen, S. Luitz, K. R. Schubert, C. Cartaro, M. Gaspero, B. Spaan, M. Davier, W. Gradl, L. Lanceri, E. Paoloni, Alessandro Gaz, Bruce Schumm, D. Lindemann, M. R. Convery, S. H. Robertson, S. Emery, G. Lynch, J. P. Coleman, G. Vasseur, K. T. Flood, J. Chauveau, G. Eigen, A. M. Eisner, P. Roudeau, Christopher West, D. E. Hutchcroft, B. G. Pushpawela, T. Leddig, T. Pulliam, Herbert Koch, K. Griessinger, V. Santoro, H. R. Band, W. S. Lockman, E. O. Olaiya, E. Grauges, S. Prell, M. V. Purohit, Florian Urs Bernlochner, Mario Giorgi, F. Palombo, T. Lueck, Andrei Gritsan, James D. Olsen, J. Albert, X. C. Lou, Brian Meadows, J. J. Walsh, H. H. F. Choi, Sridhara Dasu, C. Hast, L. T. Kerth, D. N. Brown, G. D. Lafferty, James H Cochran, V. Poireau, D. J. Bard, A. Lusiani, V. P. Druzhinin, T. M. Hong, S. Bettarini, R. F. Schwitters, R. Ayad, R. Contri, S. Pacetti, R. Cowan, M. T. Graham, Corrado Angelini, Stephen Sekula, D. Lopes Pegna, A. Khan, C. Bozzi, K. Honscheid, B. Echenard, D. Bernard, R. J. Barlow, M. Posocco, A. P. Onuchin, L. Sun, Alberto Cervelli, Adrian John Bevan, H. Neal, D. W G S Leith, A. R. Buzykaev, Y. B. Pan, R. Kowalewski, Denis Derkach, A. Beaulieu, Alessandro Pilloni, D. R. Peimer, D. Aston, F. Anulli, D. Bettoni, I. Garzia, C. Patrignani, V. Tisserand, G. P. Dubois-Felsmann, L. Piemontese, E. Gabathuler, F. C. Porter, M. Chrzaszcz, C. Voß, Sw. Banerjee, W. Dunwoodie, C. Bünger, A. Jawahery, G. Cibinetto, E. Feltresi, B. Oberhof, M. J. Lewczuk, M. Rotondo, E. A. Kravchenko, Crisostomo Sciacca, G. De Nardo, M. Röhrken, M. Hess, T. E. Latham, Yg Kolomensky, V. B. Golubev, Elisa Manoni, B. C. Wray, S. Playfer, D. Su, M. Piccolo, G. Batignani, A. Palano, David McKeen, M. Mandelkern, E. Ben-Haim, T. S. Mattison, D. J. Lange, G. Piredda, H. W. Wulsin, W. Panduro Vazquez, A. Snyder, W. R. Innes, T. J. Gershon, A. Oyanguren, C. Touramanis, O. Grünberg, R. H. Schindler, A. M. Lutz, and S. Passaggio
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Meson, 010308 nuclear & particles physics, Association (object-oriented programming), Monte Carlo method, Form factor (quantum field theory), 01 natural sciences, Pseudoscalar meson, Nuclear physics, Cross section (physics), 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Lepton
Abstract: We report on a search in e^+e^− annihilations for new π^0-like particles produced in association with a τ-lepton pair. These objects, with a similar mass and similar decay modes to π^0 mesons, could provide an explanation for the non-asymptotic behavior of the pion-photon transition form factor observed by the BABAR Collaboration. No significant signal is observed, and limits on the production cross section at the level of 73 fb or 370 fb, depending on the model parameters, are determined at 90% confidence level. These upper limits lie below the cross section values needed to explain the BABAR form factor data.
Published: 2014

42. Search for a Dark Photon ine+e−Collisions atBaBar

Author: X. C. Lou, J. J. Walsh, D. N. Brown, Corrado Angelini, P. C. Bloom, Stephen Sekula, D. Lopes Pegna, Colin Jessop, A. Khan, C. Bozzi, G. De Nardo, K. Honscheid, R. Prepost, P. Lewis, A. G. Denig, B. N. Ratcliff, Stefan Spanier, P. Patteri, Timothy Gershon, M. Posocco, Sw. Banerjee, W. Dunwoodie, M. Morandin, Alessandro Pilloni, J. L. Ritchie, C. Touramanis, E. O. Olaiya, R. Stroili, M. Hess, G. J. King, B. Bhuyan, S. I. Serednyakov, O. Grünberg, G. Vasseur, K. T. Flood, Florian Urs Bernlochner, F. Palombo, T. Lueck, James D. Olsen, R. Godang, D. R. Peimer, J. Dorfan, C. Hast, L. T. Kerth, T. S. Mattison, B. G. Fulsom, E. P. Solodov, T. S. Miyashita, V. E. Blinov, S. Pacetti, R. Cowan, D. Aston, R. Y. So, D. J. Lange, G. Piredda, H. W. Wulsin, Yu. G. Kolomensky, W. Panduro Vazquez, Abner Soffer, H. L. Lynch, M. T. Graham, R. Faccini, G. Rizzo, F. Ferrarotto, A. J. Lankford, M. Rama, F. Le Diberder, R. Andreassen, J. R. Fry, F. Anulli, T. Leddig, J. A. McKenna, A. Oyanguren, H. R. Band, Bruce Schumm, E. Grauges, Mario Giorgi, J. Bougher, J. D. Richman, G. Lynch, A. Snyder, R. Gorodeisky, W. S. Lockman, M. Bellis, M. R. Convery, Christopher West, C. Hearty, Pablo Villanueva-Perez, M. Simard, D. A. Roberts, B. C. Wray, R. H. Schindler, Sridhara Dasu, C. H. Cheng, Dmytro Kovalskyi, J. P. Lees, Hossain Ahmed, R. de Sangro, G. Grosdidier, A. M. Lutz, D. Su, N. Tasneem, Aidan Randle-Conde, M. Franco Sevilla, V. Luth, G. A. Cowan, Sau Lan Wu, A. Hafner, E. M. T. Puccio, A. Roodman, E. Fioravanti, Roland Waldi, F. Ferroni, Andrei Gritsan, M. Piccolo, G. Batignani, F. Simonetto, T. Pulliam, Maria Roberta Monge, Paul Fraser Harrison, S. Passaggio, C. Bünger, F. De Mori, M. Mandelkern, V. Santoro, A. Stocchi, Andrei Salnikov, D. B. Macfarlane, E. Paoloni, Heiko Lacker, P. M. Patel, W. H. Toki, Stephen Robert Wagner, Andrea Rodriguez Perez, James R. Wilson, William T. Ford, H. Briand, A. Jawahery, Claudio Campagnari, Andreas Filippi, S. Martellotti, Simon Akar, G. Cibinetto, S. H. Robertson, M. Carpinelli, R. Calabrese, G. Onorato, Chunhui Chen, S. Luitz, E. Feltresi, J. R. Smith, K. R. Schubert, H. H. F. Choi, Enrico Robutti, P. Ongmongkolkul, E. Ben-Haim, Herbert Koch, D. Lindemann, A. Calcaterra, G. Eigen, S. Emery, A. M. Eisner, Elisa Manoni, J. Chauveau, I. M. Nugent, M. Verderi, R. Cenci, Maurizio Martinelli, A. Zallo, M. K. Sullivan, S. Playfer, Yu. I. Skovpen, M. Feng, Marco Bomben, B. Oberhof, F. Forti, K. Griessinger, J. M. Roney, D. S. Chao, U. Mallik, V. B. Golubev, M. J. Lewczuk, M. Fritsch, Brian Meadows, M. Davier, Eleonora Luppi, A. Palano, E. A. Kravchenko, W. R. Innes, Gabriele Simi, Crisostomo Sciacca, David Hutchcroft, F. Di Lodovico, M. Lo Vetere, C. L. Davis, M. V. Purohit, P. D. Dauncey, H. Neal, T. Hartmann, A. Adametz, D. J. Payne, Douglas Wright, J. Albert, D. W G S Leith, A. R. Buzykaev, A. Beaulieu, P. Taras, P. C. Kim, Tim Adye, Maurizio Biasini, R. D. Kass, D. J. Summers, Michael Sokoloff, Z. C. Huard, B. Malaescu, M. Gaspero, J. P. Coleman, R. J. Sobie, M. J. Lee, G. Sciolla, G. R. Bonneaud, Owen Rosser Long, A. Seiden, L. Vitale, F. Martinez-Vidal, Dominik Müller, S. Prell, B. Hamilton, M. Ebert, J. A. Ernst, U. Uwer, James H Cochran, V. Poireau, A. M. Rossi, G. Calderini, Joseph Izen, A. P. Onuchin, L. Sun, Alberto Cervelli, Roger Barlow, Martino Margoni, D. J. Bard, A. Lusiani, R. C. Field, V. P. Druzhinin, Adrian John Bevan, Alessandro Gaz, T. M. Hong, V. Prasad, J. Ocariz, Marcello Rotondo, J. W. Gary, R. Cheaib, L. M. Cremaldi, W. J. Wisniewski, J. M. LoSecco, Y. B. Pan, R. F. Schwitters, R. Kowalewski, A. M. Ruland, Denis Derkach, D. G. Hitlin, Nicola Neri, Giulia Casarosa, G. Wormser, T. Schroeder, B. G. Pushpawela, R. Contri, B. Echenard, D. Bernard, S. Bettarini, George Lafferty, R. Ayad, L. Piemontese, G. Finocchiaro, E. Gabathuler, F. C. Porter, M. Chrzaszcz, C. Voß, D. Bettoni, M. S. Alam, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, G. P. Dubois-Felsmann, J. Va'Vra, Ph Leruste, N. Arnaud, K. Yu. Todyshev, G. Raven, P. R. Burchat, Biplab Dey, Fergus Wilson, P. Sonnek, I. M. Peruzzi, F. Bianchi, M. Perl, S. Dittrich, R. Sacco, L. Li Gioi, B. Spaan, W. Gradl, L. Lanceri, A. J.S. Smith, D. Gamba, N. Guttman, B. Stugu, G. Marchiori, R. M. White, C. Cartaro, and P. Roudeau
Subjects: Physics, Particle physics, Muon, Photon, Anomalous magnetic dipole moment, Electron–positron annihilation, Dark matter, General Physics and Astronomy, Context (language use), Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, Dark photon, Standard Model, Nuclear physics
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.
Published: 2014

43. Measurements of directCPasymmetries inB→Xsγdecays using sum of exclusive decays

Author: A. Oyanguren, R. Godang, L. M. Cremaldi, B. Lindquist, A. M. Ruland, Elisa Guido, J. L. Ritchie, C. Touramanis, P. C. Bloom, S. I. Serednyakov, L. Piemontese, G. P. Dubois-Felsmann, P. Biassoni, O. Grünberg, I. M. Peruzzi, W. F. Wang, D. G. Hitlin, E. O. Olaiya, Stefan Spanier, Florian Urs Bernlochner, E. Gabathuler, D. M. Strom, M. Morandin, F. C. Porter, R. Y. So, U. Uwer, R. C. Field, F. Palombo, T. Lueck, Andrea Rodriguez Perez, James R. Wilson, R. Stroili, James D. Olsen, G. Eigen, D. Derkach, T. S. Mattison, B. C. Wray, R. Andreassen, H. A. Neal, D. Monorchio, Abner Soffer, E. P. Solodov, Gabriele Simi, Christopher West, Nicola Neri, S. Passaggio, C. Hast, D. J. Lange, G. Piredda, T. E. Latham, C. L. Davis, F. Bianchi, J. Bougher, C. Voß, M. Bellis, A. Calcaterra, D. Su, C. Bünger, M. Morii, V. E. Blinov, P. D. Dauncey, M. Piccolo, Ch Yèche, T. Hartmann, E. Grauges, Mario Giorgi, S. H. Robertson, A. R. Buzykaev, Sridhara Dasu, A. Jawahery, R. F. Schwitters, T. J. Gershon, C. Cartaro, M. Perl, G. Cibinetto, G. Batignani, D. E. Hutchcroft, M. Mandelkern, W. R. Innes, Giulia Casarosa, M. R. Convery, D. W. G. S. Leith, D. Dujmic, D. Bettoni, E. Feltresi, R. Cenci, A. Zallo, A. N. Yushkov, V. B. Golubev, Maria Roberta Monge, Herbert Koch, F. Simonetto, K. Griessinger, E. Paoloni, X. C. Lou, J. J. Walsh, D. B. MacFarlane, G. Rizzo, M. Rama, J. A. McKenna, G. Wormser, Marco Bomben, T. Schroeder, Ph. Leruste, A. Palano, Elisa Manoni, D. Aston, S. Playfer, Yu G. Kolomensky, I. Garzia, D. N. Brown, C. Patrignani, M. Fritsch, G. Calderini, P. Patteri, B. N. Ratcliff, A. G. Denig, B. Bhuyan, M. T. Graham, Eleonora Luppi, W. Park, J. E. Brau, S. Prell, Biplab Dey, B. G. Fulsom, V. Tisserand, James H Cochran, V. Poireau, P. Sonnek, Jose F Benitez, N. Tasneem, D. H. Wright, Aidan Randle-Conde, T. Leddig, H. R. Band, W. S. Lockman, F. Anulli, G. D. Lafferty, F. Le Diberder, Colin Jessop, A. M. Lutz, E. Ben-Haim, Sw. Banerjee, G. R. Bonneaud, Enrico Robutti, P. Ongmongkolkul, S. Sitt, F. De Mori, M. Rotondo, S. Luitz, Heiko Lacker, M. Franco Sevilla, A. Lusiani, S. Pacetti, R. Cowan, R. Prepost, J. Va’vra, Dmytro Kovalskyi, M. Lo Vetere, G. De Nardo, V. P. Druzhinin, Bruce Schumm, A. Stocchi, Andrei Salnikov, J. P. Lees, B. Oberhof, M. Verderi, S. Akar, M. Ebert, Corrado Angelini, C. Hearty, A. P. Wagner, Z. C. Huard, M. J. Lewczuk, J. Chauveau, Douglas Wright, E. Prencipe, Chunhui Chen, K. R. Schubert, V. Luth, Claudio Campagnari, R. Baldini-Ferroli, D. Kirkby, G. Vasseur, Stephen Sekula, D. Lopes Pegna, E. A. Kravchenko, A. Khan, K. T. Flood, D. J. Summers, D. Lindemann, A. Snyder, P. Roudeau, F. Forti, C. Bozzi, K. Honscheid, Crisostomo Sciacca, Alessandro Gaz, R. J. Sobie, T. M. Hong, R. J. Barlow, U. Mallik, M. Posocco, L. Vitale, F. Martinez-Vidal, Andrei Gritsan, Dominik Müller, A. Adametz, R. Schwierz, H. Ahmed, T. S. Miyashita, P. C. Kim, P. Taras, W. T. Meyer, M. Gaspero, W. Dunwoodie, E. Behn, J. P. Coleman, G. Finocchiaro, M. S. Alam, F. F. Wilson, B. G. Pushpawela, F. Di Lodovico, K. Yu. Todyshev, D. J. Payne, R. Sacco, U. Nauenberg, Nicolas Arnaud, B. Spaan, R. Contri, L. T. Kerth, V. Ziegler, W. Gradl, A. J.S. Smith, L. Lanceri, H. H. F. Choi, R. Gorodeisky, S. Emery, Maurizio Martinelli, M. Simard, D. A. Roberts, G. Grosdidier, J. M. Roney, B. Echenard, A. Hafner, D. Bernard, J. G. Smith, E. M. T. Puccio, H. Briand, Maurizio Biasini, S. Bettarini, Owen Rosser Long, A. Seiden, J. A. Ernst, R. Ayad, S. Zambito, G. Onorato, A. Filippi, B. T. Meadows, A. P. Onuchin, L. Sun, Alberto Cervelli, G. Raven, M. D. Sokoloff, P. R. Burchat, Adrian John Bevan, Martin Kocian, D. R. Peimer, R. Frey, Y. B. Pan, R. Kowalewski, G. Sciolla, B. Hamilton, S. Nelson, A. M. Rossi, Joseph Izen, A. Roodman, E. Fioravanti, Roland Waldi, F. Ferroni, Paul Fraser Harrison, P. M. Patel, Stephen Robert Wagner, M. K. Sullivan, S. Martellotti, M. Carpinelli, I. M. Nugent, D. S. Chao, M. Davier, M. J. Lee, Yu. I. Skovpen, G. Lynch, E. Torrence, A. M. Gabareen, W. T. Ford, Tim Adye, R. D. Kass, Martino Margoni, V. Prasad, Roberto Calabrese, D. J. Bard, J. Ocariz, J. W. Gary, R. Cheaib, P. Lewis, J. M. LoSecco, N. B. Sinev, W. J. Wisniewski, G. J. King, B. Malaescu, A. M. Eisner, G. Hamel de Monchenault, M. V. Purohit, J. Albert, M. Wittgen, Rafe Schindler, J. Dorfan, T. Pulliam, V. Santoro, H. L. Lynch, J. R. Fry, C. H. Cheng, R. de Sangro, S. L. Wu, W. H. Toki, H. W. Wulsin, R. Faccini, F. Ferrarotto, A. J. Lankford, J. D. Richman, Pablo Villanueva-Perez, G. A. Cowan, R. M. White, L. Li Gioi, D. Gamba, N. Guttman, B. Stugu, and G. Marchiori
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, media_common.quotation_subject, Resonance, 01 natural sciences, Asymmetry, Standard Model, Nuclear physics, Dipole, Isospin, 0103 physical sciences, CP violation, B meson, 010306 general physics, media_common
Abstract: We measure the direct CP violation asymmetry, A_(CP), in B→X_sγ and the isospin difference of the asymmetry, ΔA_(CP), using 429 fb^(−1) of data collected at Υ(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy e^+e^− storage rings operating at the SLAC National Accelerator Laboratory. B mesons are reconstructed from ten charged B final states and six neutral B final states. We find A_(CP)=+(1.7±1.9±1.0)%, which is in agreement with the Standard Model prediction and provides an improvement on the world average. Moreover, we report the first measurement of the difference between A_(CP) for charged and neutral decay modes, ΔA_(CP)=+(5.0±3.9±1.5)%. Using the value of ΔA_(CP), we also provide 68% and 90% confidence intervals on the imaginary part of the ratio of the Wilson coefficients corresponding to the chromomagnetic dipole and the electromagnetic dipole transitions.
Published: 2014

44. Measurement of Collins asymmetries in inclusive production of charged pion pairs ine+e−annihilation atBABAR

Author: C. Bünger, A. Adametz, F. De Mori, V. Prasad, Roberto Calabrese, A. Jawahery, L. Piemontese, G. Cibinetto, Heiko Lacker, Colin Jessop, R. Prepost, E. Feltresi, P. Taras, J. Ocariz, L. Li Gioi, Emmanuel Olaiya, Tim Adye, R. D. Kass, E. Gabathuler, F. C. Porter, Chunhui Chen, S. Luitz, K. R. Schubert, M. Gaspero, Elisa Guido, D. Gamba, A. M. Gabareen, R. H. Schindler, R. Sacco, A. M. Lutz, E. P. Solodov, V. B. Golubev, A. Palano, R. Cheaib, W. R. Innes, David Hutchcroft, H. Ahmed, P. Patteri, J. L. Ritchie, S. Bettarini, S. Passaggio, R. Baldini-Ferroli, Giulia Casarosa, George Lafferty, J. Chauveau, A. Stocchi, S. I. Serednyakov, M. J. Lee, N. Guttman, G. Wormser, D. Dujmic, W. J. Wisniewski, Douglas Wright, Andrei Salnikov, Abner Soffer, D. Kirkby, G. Vasseur, B. Stugu, D. B. Macfarlane, Elisa Manoni, K. T. Flood, C. Voß, G. Sciolla, R. Y. So, Yu. I. Skovpen, B. Hamilton, M. Ebert, Claudio Campagnari, E. Torrence, R. Ayad, S. Playfer, G. Marchiori, T. Schroeder, R. Andreassen, A. J.S. Smith, D. R. Peimer, Dmytro Kovalskyi, R. Gorodeisky, S. Prell, James H Cochran, V. Poireau, Ch Yèche, M. Simard, D. A. Roberts, Joseph Izen, J. P. Lees, B. Bhuyan, Sw. Banerjee, G. Grosdidier, W. Dunwoodie, R. M. White, Akram Khan, J. M. LoSecco, N. B. Sinev, M. Rotondo, Antonio Rossi, B. G. Fulsom, D. J. Bard, V. Ziegler, A. Lusiani, R. Frey, D. Aston, C. Cartaro, F. Forti, J. Bougher, M. Bellis, Sau Lan Wu, A. Hafner, B. Spaan, S. Martellotti, M. Carpinelli, R. Godang, Jose F Benitez, E. M. T. Puccio, David Lange, V. P. Druzhinin, T. Pulliam, S. Pacetti, R. Cowan, R. Contri, J. W. Gary, G. De Nardo, P. C. Bloom, G. Simi, W. Gradl, Maria Roberta Monge, F. Anulli, L. Lanceri, J. A. McKenna, M. T. Graham, P. Roudeau, V. Santoro, P. Lewis, G. J. King, Corrado Angelini, Stephen Sekula, B. Echenard, T. M. Hong, L. M. Cremaldi, Maurizio Biasini, E. Paoloni, Simon Akar, S. Zambito, D. S. Chao, Martino Margoni, Enrico Robutti, P. Ongmongkolkul, D. Bernard, M. Davier, D. Lopes Pegna, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, Stefan Spanier, M. Morandin, G. Onorato, A. M. Ruland, D. Bettoni, C. Bozzi, Pablo Villanueva-Perez, A. Roodman, R. Schwierz, J. Dorfan, U. Uwer, A. Filippi, A. Oyanguren, B. C. Wray, V. E. Blinov, W. F. Wang, B. Malaescu, T. E. Latham, G. Lynch, D. G. Hitlin, K. Honscheid, R. Stroili, B. T. Meadows, G. Raven, E. Fioravanti, Ian Michael Nugent, V. Luth, R. F. Schwitters, Roland Waldi, F. Ferroni, A. P. Wagner, A. Calcaterra, M. D. Sokoloff, P. R. Burchat, G. A. Cowan, I. Garzia, R. J. Barlow, X. C. Lou, J. J. Walsh, M. Posocco, D. M. Strom, D. Su, C. Patrignani, G. Rizzo, V. Tisserand, Owen Rosser Long, A. Seiden, M. Rama, Martin Kocian, G. P. Dubois-Felsmann, J. A. Ernst, E. Grauges, Nicola Neri, M. Piccolo, Andrea Rodriguez Perez, D. Monorchio, James R. Wilson, William T. Ford, H. Briand, Paul Fraser Harrison, D. N. Brown, W. T. Meyer, Mario Giorgi, Bruce Schumm, H. Neal, T. Hartmann, P. M. Patel, M. R. Convery, Sridhara Dasu, A. P. Onuchin, L. Sun, G. Batignani, Stephen Robert Wagner, Alberto Cervelli, D. W G S Leith, E. Prencipe, S. Sitt, A. R. Buzykaev, B. Oberhof, Marco Bomben, M. Mandelkern, M. Lo Vetere, M. J. Lewczuk, S. H. Robertson, C. L. Davis, E. Ben-Haim, Adrian John Bevan, D. Lindemann, C. Touramanis, Christopher West, E. A. Kravchenko, B. G. Pushpawela, R. Cenci, Andrei Gritsan, G. Eigen, A. M. Eisner, A. Zallo, G. Finocchiaro, Paul Dauncey, A. G. Denig, B. N. Ratcliff, A. N. Yushkov, J. E. Brau, G. Hamel de Monchenault, Y. B. Pan, M. S. Alam, R. Kowalewski, M. Fritsch, Crisostomo Sciacca, M. V. Purohit, Herbert Koch, J. Albert, O. Grünberg, C. Hearty, M. Wittgen, Eleonora Luppi, W. Park, F. F. Wilson, J. Va'Vra, K. Yu. Todyshev, H. L. Lynch, Denis Derkach, P. C. Kim, J. R. Fry, D. J. Summers, Jeffrey Richman, C. H. Cheng, K. Griessinger, Yu. G. Kolomensky, R. de Sangro, W. H. Toki, T. S. Mattison, R. J. Sobie, L. Vitale, F. Martinez-Vidal, G. Piredda, H. W. Wulsin, Z. C. Huard, M. Morii, A. Snyder, Dominik Müller, S. Nelson, T. J. Gershon, J. P. Coleman, R. C. Field, Alessandro Gaz, F. Simonetto, G. R. Bonneaud, G. Calderini, N. Tasneem, D. H. Wright, Aidan Randle-Conde, M. Franco Sevilla, P. Biassoni, Florian Urs Bernlochner, F. Palombo, T. Lueck, James D. Olsen, C. Hast, L. T. Kerth, I. M. Peruzzi, F. Bianchi, M. Perl, Ph Leruste, N. Arnaud, B. Lindquist, Biplab Dey, P. Sonnek, M. Verderi, U. Mallik, Maurizio Martinelli, M. K. Sullivan, J. M. Roney, T. S. Miyashita, J. G. Smith, F. Di Lodovico, D. J. Payne, U. Nauenberg, E. Behn, G. M. Vitug, T. Leddig, H. R. Band, W. S. Lockman, H. H. F. Choi, and S. Emery
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, media_common.quotation_subject, Hadron, BaBar experiment, 01 natural sciences, Asymmetry, B-factory, Momentum, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, media_common
Abstract: We present measurements of Collins asymmetries in the inclusive process e^+e^−→ππX, where π stands for charged pions, at a center-of-mass energy of 10.6 GeV. We use a data sample of 468 fb^(−1) collected by the BABAR experiment at the PEP-II B factory at SLAC, and consider pairs of charged pions produced in opposite hemispheres of hadronic events. We observe clear asymmetries in the distributions of the azimuthal angles in two distinct reference frames. We study the dependence of the asymmetry on several kinematic variables, finding that it increases with increasing pion momentum and momentum transverse to the analysis axis, and with increasing angle between the thrust and beam axis.
Published: 2014

45. Study of the reactione+e−→ψ(2S)π+π−via initial-state radiation atBaBar

Author: R. Cenci, P. Lewis, A. Zallo, M. Fritsch, R. M. White, C. Cartaro, Elisa Guido, J. L. Ritchie, Eleonora Luppi, E. Prencipe, Dmytro Kovalskyi, J. P. Lees, R. Bartoldus, H. Schröder, S. Luitz, Gabriella Sciolla, D. B. MacFarlane, P. Lund, David Nathan Brown, Michael Sigamani, J. W. Gary, T. E. Latham, M. Carpinelli, G. De Nardo, J. Cochran, A. Calcaterra, R. Andreassen, J. F. Benitez, Marcello Rotondo, P. Sonnek, V. Santoro, G. Wormser, Peter S. Kim, W. Dunwoodie, L. M. Cremaldi, G. P. Dubois-Felsmann, C. Voss, B. N. Ratcliff, M. Ebert, A. M. Ruland, D. G. Hitlin, Marco Bomben, Matteo Negrini, A. J. Martinez, F. Forti, Nicola Neri, D. Lindemann, M. Lo Vetere, R. Faccini, Sokoloff, V. B. Golubev, W. J. Wisniewski, E. Grauges, Andrea Rodriguez Perez, R. Ayad, James R. Wilson, William T. Ford, S. H. Robertson, F. Ferrarotto, F. Le Diberder, J. D. Richman, Giorgi, C. Hearty, V. E. Blinov, R. Calabrese, Y. B. Pan, O. Hamon, H. W. Wulsin, A. Khan, R. Kowalewski, Sridhara Dasu, G. Lynch, B. C. Wray, R. Schwierz, S. Passaggio, M. J. Lewczuk, S. Sitt, Andrew Lankford, D. J. Summers, Bjarne Stugu, Douglas Wright, A. Y. Rakitin, I. M. Peruzzi, L. Lanceri, R. Contri, M. L. Kocian, Herbert Koch, C. H. Cheng, R. J. Sobie, C. Bünger, E. Feltresi, Simon Akar, D. Su, R. Prepost, G. Eigen, L. Vitale, A. Adametz, S. I. Serednyakov, F. Bianchi, A. E. Rubin, Crisostomo Sciacca, D. Aston, D. Dujmic, G. Rizzo, Tim Adye, R. D. Kass, K. Griessinger, A. Oyanguren, L. Li Gioi, D. J. Bard, F. Martinez-Vidal, Gabriele Simi, C. L. Davis, S. J. Sekula, A. Jawahery, Elisa Manoni, E. A. Kravchenko, Ch Yèche, J. Va’vra, J. A. McKenna, X. Nguyen, J. R. Fry, Denis Derkach, R. Baldini-Ferroli, S. Playfer, Hamad Ahmed, Maurizio Biasini, S. Stracka, R. de Sangro, F. Simonetto, R. H. Schindler, M. Piccolo, G. Batignani, W. T. Meyer, A. Stocchi, Maria Roberta Monge, D. Kirkby, G. Vasseur, D. R. Muller, P. Patteri, G. Jackson, B. Echenard, M. Mandelkern, G. R. Bonneaud, E. Paoloni, J. Dorfan, S. L. Wu, V. Ziegler, A. V. Telnov, P. Taras, E. P. Solodov, A. P. Onuchin, Tamara Vazquez Schroeder, J. E. Brau, B. Bhuyan, N. Guttman, D. H. Wright, S. Pacetti, R. Cowan, E. Ben-Haim, B. G. Fulsom, D. Gamba, M. Bellis, Yu. I. Skovpen, A. N. Yushkov, B. Hamilton, Owen Rosser Long, W. F. Wang, J. J. Walsh, A. Seiden, K. T. Flood, W. H. Toki, F. Liu, G. Cibinetto, J. A. Ernst, C. C. Young, D. W. G. S. Leith, G. Marchiori, H. Atmacan, R. Kroeger, Enrico Robutti, P. Ongmongkolkul, David Norvil Brown, P. C. Bloom, P. K. Behera, E. Torrence, Ph Leruste, M. L. Perl, A. M. Rossi, Z. J. Guo, N. Arnaud, A. V. Gritsan, Juergen Kroseberg, P. Roudeau, A. M. Gabareen, L. Sun, H. A. Neal, Yu. G. Kolomensky, G. Casarosa, D. Monorchio, M. Gaspero, X. C. Lou, Cheng Chen, A. P. Wagner, R. Sacco, C. Hast, D. J. Lange, G. Piredda, A. M. Eisner, A. Palano, Alberto Cervelli, W. Park, A. J. Edwards, C. P. Jessop, M. Morii, P. D. Dauncey, G. Calderini, T. Hartmann, R. Godang, Claudio Campagnari, J. P. Coleman, T. J. Gershon, H. M. Lacker, H. L. Lynch, M. K. Sullivan, A. R. Buzykaev, J. M. Izen, Matteo Rama, D. R. Peimer, S. Prell, G. Hamel de Monchenault, G. D. Lafferty, V. Poireau, R. Frey, Corrado Angelini, M. H. Kelsey, D. Lopes Pegna, Martino Margoni, C. Touramanis, A. Soffer, D. M. Strom, M. V. Purohit, M. Bondioli, M. Munerato, O. Grünberg, V. P. Druzhinin, C. Bozzi, G. Cowan, K. Yu Todyshev, M. H. Schune, U. Uwer, N. Gagliardi, I. M. Nugent, K. Honscheid, Mazzoni, J. Garra Tico, C. A. Chavez, A. Lusiani, B. A. Schumm, G. Grosdidier, J. Albert, R. Gorodeisky, Z. C. Huard, Denis Bernard, M. Wittgen, R. J. Barlow, M. Simard, D. A. Roberts, Christopher West, M. Posocco, A. J. S. Smith, D. S. Chao, T. M. Hong, R. Stroili, A. M. Lutz, J. Olsen, M. T. Graham, A. Hafner, A. G. Denig, M. Davier, A. Roodman, A. A. Salnikov, J. Chauveau, F. Anulli, E. Fioravanti, T. Pulliam, Alessandro Gaz, F. Ferroni, R. F. Schwitters, P. Biassoni, E. M. T. Puccio, P. M. Patel, Stephen Robert Wagner, K. R. Schubert, E. O. Olaiya, G. Onorato, F. Palombo, T. Lueck, B. T. Meadows, G. Raven, P. R. Burchat, N. Tasneem, Aidan Randle-Conde, M. Franco Sevilla, G. M. Vitug, P. Grenier, D. E. Hutchcroft, C. Dallapiccola, T. Leddig, H. R. Band, W. S. Lockman, Brian Edward Lindquist, M. R. Convery, M. Verderi, U. Mallik, T. S. Miyashita, Mauro Morandin, S. Bettarini, A. J. Bevan, S. M. Spanier, E. Behn, F. Di Lodovico, D. J. Payne, U. Nauenberg, L. T. Kerth, T. S. Mattison, F. F. Wilson, H. H. F. Choi, S. Emery, Maurizio Martinelli, J. M. Roney, V. Prasad, J. Ocariz, J. G. Smith, R. C. Field, R. Cheaib, G. Finocchiaro, V. Luth, R. Waldi, A. Snyder, J. M. LoSecco, N. B. Sinev, Bogdan Malaescu, B. Oberhof, G. J. King, P. F. Harrison, B. Spaan, Silke Nelson, H. Briand, W. Gradl, Sw. Banerjee, Alam, P. J. Clark, D. Bettoni, Florian Urs Bernlochner, I. Garzia, C. Patrignani, V. Tisserand, C. L. Lee, L. Piemontese, E. Gabathuler, W. R. Innes, F. C. Porter, and D. J. Asgeirsson
Subjects: Physics, Nuclear and High Energy Physics, Luminosity (scattering theory), Mass distribution, 010308 nuclear & particles physics, Electron–positron annihilation, Resonance, State (functional analysis), Radiation, 01 natural sciences, 7. Clean energy, law.invention, Nuclear physics, law, 0103 physical sciences, Pi, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Collider
Abstract: We study the process e+e−→ψ(2S)π+π− with initial-state-radiation events produced at the PEP-II asymmetric-energy collider. The data were recorded with the BABAR detector at center-of-mass energies at and near the Υ(nS) (n=2,3,4) resonances and correspond to an integrated luminosity of 520 fb−1. We investigate the ψ(2S)π+π− mass distribution from 3.95 to 5.95 GeV/c2, and measure the center-of-mass energy dependence of the associated e+e−→ψ(2S)π+π− cross section. The mass distribution exhibits evidence of two resonant structures. A fit to the ψ(2S)π+π− mass distribution corresponding to the decay mode ψ(2S)→J/ψπ+π− yields a mass value of 4340±16 (stat) ±9 (syst) MeV/c2 and a width of 94±32 (stat) ±13 (syst) MeV for the first resonance, and for the second a mass value of 4669±21 (stat) ±3 (syst) MeV/c2 and a width of 104±48 (stat) ±10 (syst) MeV. In addition, we show the π+π− mass distributions for these resonant regions.
Published: 2014

46. Antideuteron production inϒ(nS)decays and ine+e−→qq¯ats≈10.58 GeV

Author: Elisa Manoni, S. Playfer, Akram Khan, M. T. Graham, T. S. Mattison, C. Hast, G. Piredda, W. Panduro Vazquez, M. Morii, T. J. Gershon, A. Oyanguren, D. Bettoni, C. Touramanis, O. Grünberg, S. Bettarini, Colin Jessop, X. C. Lou, J. J. Walsh, R. Prepost, Gabriele Simi, C. L. Davis, D. N. Brown, A. P. Wagner, A. G. Denig, J. L. Ritchie, H. W. Wulsin, V. E. Blinov, B. Spaan, H. A. Neal, G. J. King, M. J. Lee, G. Sciolla, Weitao Wang, E. P. Solodov, T. S. Miyashita, Mauro Morandin, G. P. Dubois-Felsmann, R. Ayad, M. Lo Vetere, W. Gradl, B. Hamilton, M. Ebert, S. I. Serednyakov, Ian Michael Nugent, L. Lanceri, G. D. Lafferty, D. R. Peimer, Florian Urs Bernlochner, F. Palombo, T. Lueck, Bruce Schumm, I. Garzia, F. De Mori, M. L. Perl, James D. Olsen, G. Rizzo, C. Patrignani, V. Tisserand, R. C. Field, T. Hartmann, Joseph Izen, Z. C. Huard, Heiko Lacker, L. T. Kerth, A. M. Lutz, N. Tasneem, R. Contri, E. Prencipe, J. R. Fry, G. Finocchiaro, V. Luth, R. Y. So, Jeffrey Richman, G. Vasseur, Yu. G. Kolomensky, A. Roodman, K. T. Flood, W. J. Wisniewski, Aidan Randle-Conde, A. R. Buzykaev, M. S. Alam, R. Andreassen, D. E. Hutchcroft, M. Franco Sevilla, Abner Soffer, T. Leddig, E. Fioravanti, T. Pulliam, Enrico Robutti, P. Ongmongkolkul, Chunhui Chen, K. R. Schubert, H. R. Band, A. Stocchi, A. Snyder, W. S. Lockman, L. Piemontese, C. H. Cheng, A. Beaulieu, Roland Waldi, R. F. Schwitters, S. Passaggio, F. Ferroni, Maurizio Biasini, J. Bougher, B. Malaescu, M. R. Convery, B. Echenard, F. F. Wilson, J. Chauveau, G. R. Bonneaud, Dmytro Kovalskyi, J. P. Lees, C. Bünger, A. Calcaterra, D. Bernard, E. Gabathuler, W. R. Innes, Claudio Campagnari, D. W. G. S. Leith, R. de Sangro, A. A. Salnikov, Andrei Gritsan, E. Grauges, F. C. Porter, S. L. Wu, G. Calderini, B. Oberhof, M. Bellis, M. J. Lewczuk, K. Yu. Todyshev, Mario Giorgi, Owen Rosser Long, Corrado Angelini, F. Forti, Stephen Sekula, David Lange, S. Luitz, A. Jawahery, G. Cibinetto, Paul Fraser Harrison, A. Seiden, Sridhara Dasu, Maria Roberta Monge, D. Lopes Pegna, Marco Bomben, E. A. Kravchenko, V. Prasad, Roberto Calabrese, W. H. Toki, M. Verderi, S. Sitt, M. Chrzaszcz, Peter S. Kim, C. Voß, Alessandro Gaz, P. Patteri, J. A. McKenna, D. Lindemann, C. Bozzi, V. Santoro, E. Feltresi, B. N. Ratcliff, Douglas Wright, B. G. Pushpawela, P. C. Bloom, P. M. Patel, J. Ocariz, Emmanuel Olaiya, E. Paoloni, U. Mallik, Crisostomo Sciacca, D. Aston, J. A. Ernst, K. Honscheid, R. Cenci, P. Lewis, A. M. Eisner, Sw. Banerjee, A. P. Onuchin, L. Sun, A. Zallo, B. Bhuyan, Paul Dauncey, Stephen Robert Wagner, Alberto Cervelli, R. J. Barlow, V. B. Golubev, G. Lynch, Adrian John Bevan, M. Posocco, B. G. Fulsom, M. Fritsch, S. Martellotti, R. Cheaib, M. Carpinelli, Matteo Rama, Y. B. Pan, R. Kowalewski, Eleonora Luppi, A. Palano, Stefan Spanier, T. E. Latham, Antonio Rossi, S. Prell, J. M. LoSecco, M. V. Purohit, J. Albert, Denis Derkach, S. Pacetti, R. Cowan, James H Cochran, U. Uwer, V. Poireau, D. S. Chao, M. K. Sullivan, R. Stroili, S. H. Robertson, M. Davier, A. Lusiani, Herbert Koch, V. P. Druzhinin, K. Griessinger, Andrea Rodriguez Perez, James R. Wilson, William T. Ford, H. Briand, T. M. Hong, A. Adametz, P. Taras, M. Gaspero, J. P. Coleman, G. Eigen, R. Godang, H. L. Lynch, Christopher West, C. Hearty, D. J. Summers, R. J. Sobie, L. Vitale, F. Martinez-Vidal, Dominik Müller, H. Ahmed, F. Simonetto, R. H. Schindler, Martino Margoni, Yu. I. Skovpen, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, H. H. F. Choi, J. Dorfan, S. Emery, Maurizio Martinelli, J. M. Roney, Tim Adye, R. D. Kass, J. G. Smith, Ph Leruste, N. Arnaud, Pablo Villanueva-Perez, D. J. Bard, F. Di Lodovico, D. J. Payne, F. Anulli, I. M. Peruzzi, F. Bianchi, G. A. Cowan, L. Li Gioi, J. Va’vra, S. Dittrich, D. Gamba, Biplab Dey, N. Guttman, P. Sonnek, B. Stugu, G. Marchiori, Giulia Casarosa, G. Wormser, R. M. White, C. Cartaro, M. Rotondo, T. Schroeder, W. Dunwoodie, P. Roudeau, G. De Nardo, L. M. Cremaldi, A. M. Ruland, B. C. Wray, D. Su, D. G. Hitlin, M. Piccolo, G. Batignani, M. Mandelkern, E. Ben-Haim, Nicola Neri, R. Sacco, A. J.S. Smith, R. Gorodeisky, M. Simard, D. A. Roberts, G. Grosdidier, A. Hafner, E. M. T. Puccio, J. W. Gary, D. B. MacFarlane, Simon Akar, G. Onorato, A. Filippi, B. T. Meadows, G. Raven, M. D. Sokoloff, and P. R. Burchat
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, 7. Clean energy, 01 natural sciences, law.invention, Nuclear physics, law, 0103 physical sciences, 010306 general physics, Collider, Bar (unit)
Abstract: We present measurements of the inclusive production of antideuterons in e^+e^− annihilation into hadrons at ≈10.58 GeV center-of-mass energy and in Υ(1S,2S,3S) decays. The results are obtained using data collected by the BABAR detector at the PEP-II electron-positron collider. Assuming a fireball spectral shape for the emitted antideuteron momentum, we find B(Υ(1S)→d[bar]X)=(2.81±0.49(stat)^(+0.20)_(−0.24)(syst))×10^(−5), B(Υ(2S)→d[bar]X)=(2.64±0.11(stat)^(+0.26)(−0.21)(syst))×10^(−5), B(Υ(3S)→d[bar]X)=(2.33±0.15(stat)^(+0.31)_(−0.28)(syst))×10^(−5), and σ(e^+e^− →d[bar]X)=(9.63±0.41(stat)^(+1.17)_(−1.01)(syst) fb.
Published: 2014

47. Dalitz plot analysis ofηc→K+K−ηandηc→K+K−π0in two-photon interactions

Author: M. Rotondo, G. De Nardo, A. Roodman, E. Fioravanti, T. Pulliam, Roland Waldi, F. Ferroni, B. C. Wray, D. Su, M. Piccolo, F. De Mori, G. Batignani, M. Mandelkern, V. Prasad, E. Ben-Haim, Roberto Calabrese, Paul Fraser Harrison, Heiko Lacker, J. Ocariz, Emmanuel Olaiya, H. A. Neal, Giulia Casarosa, G. Wormser, P. M. Patel, J. L. Ritchie, S. I. Serednyakov, Stephen Robert Wagner, J. M. LoSecco, Chunhui Chen, K. R. Schubert, T. Schroeder, W. Dunwoodie, S. H. Robertson, T. Hartmann, A. P. Wagner, G. J. King, J. Chauveau, S. Emery, M. J. Lee, Herbert Koch, R. Y. So, G. Sciolla, A. R. Buzykaev, B. Hamilton, M. Ebert, R. Andreassen, Maurizio Biasini, A. A. Salnikov, Bruce Schumm, Martino Margoni, L. M. Cremaldi, H. H. F. Choi, K. Griessinger, M. L. Perl, B. Malaescu, Joseph Izen, A. M. Ruland, E. Prencipe, A. Beaulieu, S. Martellotti, M. Carpinelli, Owen Rosser Long, A. Seiden, Maurizio Martinelli, P. Patteri, Yu. I. Skovpen, D. G. Hitlin, J. M. Roney, A. G. Denig, B. Bhuyan, X. C. Lou, J. J. Walsh, Corrado Angelini, B. G. Fulsom, D. E. Hutchcroft, Stephen Sekula, J. A. Ernst, T. Leddig, Nicola Neri, D. Lopes Pegna, Andrei Gritsan, D. N. Brown, H. R. Band, Enrico Robutti, P. Ongmongkolkul, J. G. Smith, D. S. Chao, W. S. Lockman, M. Davier, C. Bozzi, K. Honscheid, A. P. Onuchin, L. Sun, Alberto Cervelli, M. K. Sullivan, J. R. Fry, R. J. Barlow, Colin Jessop, R. Prepost, F. Di Lodovico, M. R. Convery, M. Posocco, D. J. Payne, C. H. Cheng, Jeffrey Richman, Yu. G. Kolomensky, F. Anulli, Z. C. Huard, M. Hess, Adrian John Bevan, R. de Sangro, S. L. Wu, B. Oberhof, C. Bünger, M. J. Lewczuk, Antonio Rossi, Andrea Rodriguez Perez, James R. Wilson, William T. Ford, M. Verderi, H. Briand, A. Calcaterra, W. H. Toki, Tim Adye, S. Pacetti, R. D. Kass, R. Cowan, A. Jawahery, G. Cibinetto, Alessandro Gaz, E. A. Kravchenko, G. Vasseur, K. T. Flood, U. Mallik, Y. B. Pan, A. Oyanguren, A. M. Eisner, Marco Bomben, E. Feltresi, R. Cenci, P. Lewis, R. Kowalewski, G. Eigen, A. Zallo, Paul Dauncey, P. C. Bloom, Crisostomo Sciacca, D. Aston, Douglas Wright, M. V. Purohit, M. Fritsch, J. Albert, Stefan Spanier, M. Morandin, Eleonora Luppi, C. Touramanis, U. Uwer, R. Stroili, A. M. Lutz, Denis Derkach, W. J. Wisniewski, Weitao Wang, E. P. Solodov, T. S. Miyashita, E. Grauges, S. Passaggio, Mario Giorgi, T. E. Latham, O. Grünberg, D. R. Peimer, Sridhara Dasu, V. B. Golubev, A. Palano, J. Bougher, M. Bellis, T. S. Mattison, C. Hast, G. Piredda, W. Panduro Vazquez, M. Morii, T. J. Gershon, Elisa Manoni, S. Playfer, Akram Khan, M. T. Graham, M. Lo Vetere, G. R. Bonneaud, D. W. G. S. Leith, Abner Soffer, G. Calderini, R. Cheaib, Florian Urs Bernlochner, F. Palombo, T. Lueck, James D. Olsen, L. T. Kerth, N. Tasneem, Aidan Randle-Conde, M. Franco Sevilla, Maria Roberta Monge, J. A. McKenna, E. Paoloni, R. C. Field, G. Finocchiaro, V. Luth, M. S. Alam, A. Snyder, F. F. Wilson, K. Yu. Todyshev, B. N. Ratcliff, R. F. Schwitters, B. Spaan, W. Gradl, L. Lanceri, H. W. Wulsin, V. E. Blinov, A. Adametz, F. Simonetto, R. H. Schindler, S. Bettarini, G. Rizzo, George Lafferty, M. Rama, P. Taras, G. P. Dubois-Felsmann, M. Gaspero, J. P. Coleman, R. Ayad, S. Prell, James H Cochran, V. Poireau, A. Lusiani, V. P. Druzhinin, Dmytro Kovalskyi, J. P. Lees, T. M. Hong, C. Hearty, Biplab Dey, David Lange, D. J. Summers, V. Santoro, P. Sonnek, S. Luitz, R. J. Sobie, L. Vitale, I. M. Peruzzi, F. Martinez-Vidal, Dominik Müller, B. G. Pushpawela, R. Contri, F. Bianchi, D. Lindemann, B. Echenard, D. Bernard, S. Dittrich, H. Ahmed, R. Godang, Sw. Banerjee, H. L. Lynch, J. Dorfan, L. Piemontese, Peter S. Kim, E. Gabathuler, W. R. Innes, F. C. Porter, Ph Leruste, N. Arnaud, Christopher West, M. Chrzaszcz, C. Voß, L. Li Gioi, J. Va’vra, G. Lynch, D. Bettoni, D. Gamba, Ian Michael Nugent, N. Guttman, B. Stugu, I. Garzia, C. Patrignani, V. Tisserand, G. Marchiori, R. M. White, C. Cartaro, A. Stocchi, P. Roudeau, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, Claudio Campagnari, Pablo Villanueva-Perez, D. J. Bard, G. A. Cowan, R. Gorodeisky, M. Simard, D. A. Roberts, G. Grosdidier, A. Hafner, F. Forti, E. M. T. Puccio, J. W. Gary, D. B. MacFarlane, Gabriele Simi, C. L. Davis, R. Sacco, A. J.S. Smith, Simon Akar, G. Onorato, A. Filippi, B. T. Meadows, G. Raven, M. D. Sokoloff, and P. R. Burchat
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Dalitz plot, 01 natural sciences, Measure (mathematics), law.invention, Nuclear physics, Pion, law, 0103 physical sciences, Mass spectrum, 010306 general physics, Collider
Abstract: We study the processes γγ→K+K−η and γγ→K+K−π0 using a data sample of 519 fb−1 recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e+e− collider at center-of-mass energies at and near the Υ(nS) (n=2,3,4) resonances. We observe ηc→K+K−π0 and ηc→K+K−η decays, measure their relative branching fraction, and perform a Dalitz plot analysis for each decay. We observe the K∗0(1430)→Kη decay and measure its branching fraction relative to the Kπ decay mode to be R(K∗0(1430))=B(K∗0(1430)→Kη)B(K∗0(1430)→Kπ)=0.092±0.025+0.010−0.025. The ηc→K+K−η and K∗0(1430)→Kη results correspond to the first observations of these channels. The data also show evidence for ηc(2S)→K+K−π0 and first evidence for ηc(2S)→K+K−η.
Published: 2014

48. Evidence for the baryonic decayB¯0→D0ΛΛ¯

Author: Elisa Guido, J. L. Ritchie, S. I. Serednyakov, Dmytro Kovalskyi, J. P. Lees, R. Y. So, V. Santoro, R. Andreassen, B. Spaan, D. R. Peimer, W. Gradl, L. Lanceri, R. Frey, V. Prasad, R. C. Field, G. Finocchiaro, V. Luth, M. S. Alam, A. Snyder, Abner Soffer, B. N. Ratcliff, K. Yu. Todyshev, S. Martellotti, M. Carpinelli, R. Schwierz, B. Lindquist, Ch Yèche, W. T. Meyer, Maurizio Martinelli, H. W. Wulsin, J. Ocariz, V. E. Blinov, J. M. Roney, A. Adametz, Maria Roberta Monge, J. W. Gary, G. Rizzo, R. Cheaib, J. A. McKenna, E. Paoloni, D. Payne, S. Luitz, J. R. Fry, I. M. Nugent, Weitao Wang, E. P. Solodov, Y. B. Pan, U. Uwer, A. Oyanguren, Bruce Schumm, Douglas Wright, J. M. LoSecco, R. Kowalewski, J. F. Benitez, G. De Nardo, R. Sacco, D. S. Chao, C. H. Cheng, Roger Barlow, Martino Margoni, R. de Sangro, E. Prencipe, X. C. Lou, N. B. Sinev, M. Lo Vetere, P. Taras, M. Davier, A. P. Wagner, Mauro Morandin, H. H. F. Choi, D. N. Brown, A. Roodman, F. Di Lodovico, U. Nauenberg, Yu. I. Skovpen, E. Torrence, G. J. King, E. Fioravanti, T. Pulliam, Roland Waldi, F. Ferroni, M. Gaspero, F. Anulli, F. Simonetto, R. H. Schindler, A. J.S. Smith, R. Gorodeisky, M. Simard, D. A. Roberts, B. G. Pushpawela, Andrei Gritsan, W. H. Toki, S. Nelson, Denis Derkach, R. M. White, Paul Fraser Harrison, H. A. Neal, D. Monorchio, Matteo Rama, G. Grosdidier, C. Cartaro, A. M. Eisner, Gabriele Simi, C. L. Davis, F. De Mori, P. M. Patel, Marcello Rotondo, Sau Lan Wu, A. Hafner, S. M. Spanier, S. Prell, A. N. Yushkov, L. M. Cremaldi, E. M. T. Puccio, Stephen Robert Wagner, G. Hamel de Monchenault, S. Bettarini, George Lafferty, James H Cochran, V. Poireau, Heiko Lacker, Timothy Gershon, P. D. Dauncey, R. Stroili, E. Behn, B. C. Wray, M. V. Purohit, Maurizio Biasini, B. Malaescu, G. P. Dubois-Felsmann, Michael Sokoloff, J. Bougher, A. A. Salnikov, J. R. Smith, T. Hartmann, A. M. Gabareen, J. Albert, Tim Adye, A. Lusiani, R. D. Kass, D. B. MacFarlane, R. Ayad, M. Wittgen, A. M. Ruland, D. Su, V. P. Druzhinin, Chunhui Chen, K. R. Schubert, E. Ben-Haim, Simon Akar, S. Zambito, M. Bellis, A. R. Buzykaev, Owen Rosser Long, A. Seiden, M. J. Lee, C. Touramanis, G. Onorato, M. Piccolo, J. Chauveau, R. Contri, G. Batignani, A. Filippi, G. Sciolla, B. Hamilton, M. Ebert, P. C. Bloom, T. M. Hong, M. Mandelkern, G. Raven, J. A. Ernst, O. Grünberg, M. L. Perl, A. M. Rossi, D. G. Hitlin, Joseph Izen, P. R. Burchat, B. Echenard, D. Bernard, M. Verderi, A. M. Lutz, A. P. Onuchin, L. Sun, C. Hearty, W. J. Wisniewski, P. Roudeau, L. Li Gioi, H. Ahmed, R. F. Schwitters, J. Va’vra, Alberto Cervelli, S. Pacetti, S. Passaggio, U. Mallik, R. Cowan, D. J. Summers, A. Stocchi, T. S. Mattison, V. B. Golubev, Adrian John Bevan, A. Palano, T. S. Miyashita, C. Hast, Corrado Angelini, Nicola Neri, D. J. Lange, Stephen Sekula, R. J. Sobie, D. Lopes Pegna, L. Vitale, D. Gamba, G. Piredda, A. Khan, Claudio Campagnari, C. Bozzi, M. Morii, David Hutchcroft, K. Honscheid, A. Calcaterra, F. Martinez-Vidal, Dominik Müller, M. Posocco, C. Bünger, Andrea Rodriguez Perez, William T. Ford, N. Guttman, G. M. Vitug, R. Calabrese, D. Dujmic, H. Briand, Elisa Manoni, B. Stugu, A. Jawahery, F. Forti, S. Playfer, T. Leddig, G. Cibinetto, R. Godang, M. T. Graham, Peter S. Kim, H. R. Band, E. Feltresi, Giulia Casarosa, G. Wormser, G. Lynch, D. Bettoni, M. L. Kocian, H. L. Lynch, W. S. Lockman, G. Marchiori, D. M. Strom, R. Faccini, Marco Bomben, F. Ferrarotto, A. J. Lankford, F. Le Diberder, I. Garzia, D. H. Wright, Thomas Latham, C. Patrignani, J. D. Richman, M. R. Convery, V. Tisserand, D. Lindemann, Pablo Villanueva-Perez, R. Cenci, P. Lewis, D. J. Bard, Christopher West, Sw. Banerjee, T. Schroeder, A. Zallo, J. R. Wilson, G. A. Cowan, A. G. Denig, M. Fritsch, J. E. Brau, Eleonora Luppi, W. Park, I. M. Peruzzi, W. Dunwoodie, L. Piemontese, F. Bianchi, E. Gabathuler, W. R. Innes, F. C. Porter, Yu. G. Kolomensky, P. Patteri, C. Voß, E. Grauges, Mario Giorgi, B. Bhuyan, J. J. Walsh, Sridhara Dasu, B. G. Fulsom, Biplab Dey, S. Sitt, Fergus Wilson, P. Sonnek, Colin Jessop, R. Prepost, J. Dorfan, Ph Leruste, N. Arnaud, R. Baldini-Ferroli, D. Kirkby, G. Vasseur, K. T. Flood, M. K. Sullivan, S. H. Robertson, S. Emery, Herbert Koch, K. Griessinger, Brian Meadows, V. Ziegler, Z. C. Huard, J. P. Coleman, Alessandro Gaz, P. Biassoni, E. O. Olaiya, Florian Urs Bernlochner, F. Palombo, T. Lueck, James D. Olsen, L. T. Kerth, G. R. Bonneaud, D. W. G. S. Leith, G. Calderini, N. Tasneem, Aidan Randle-Conde, M. Franco Sevilla, Enrico Robutti, P. Ongmongkolkul, G. Eigen, B. Oberhof, M. J. Lewczuk, E. A. Kravchenko, Crisostomo Sciacca, and D. Aston
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, High Energy Physics::Phenomenology, Lambda, 01 natural sciences, Baryon, Charmed baryons, 0103 physical sciences, High Energy Physics::Experiment, B meson, Atomic physics, 010306 general physics, Bar (unit)
Abstract: Evidence is presented for the baryonic $B$ meson decay $\bar{B}\rightarrow D^0 \Lambda \bar{\Lambda}$ based on a data sample of $471 \times 10^6$ $B\bar{B}$ pairs collected with the {\it BABAR} detector at the PEP2 asymmetric $e^+e^-$ collider located at the SLAC National Accelerator Laboratory. The branching fraction is determined to be $\mathcal{B}(\bar{B}\rightarrow D^0 \Lambda \bar{\Lambda}) = (9.8^{+2.9}_{-2.6} \pm 1.9)\times 10^{-6}$, corresponding to a significance of $3.4$ standard deviations including systematic uncertainties. A search for the related baryonic $B$ meson decay $\bar{B}\rightarrow D^0 \Sigma^0 \bar{\Lambda}$ with $\Sigma^0\rightarrow\Lambda\gamma$ is performed and an upper limit $\mathcal{B}(\bar{B}\rightarrow D^0 \Sigma^0 \bar{\Lambda} + \bar{B}\rightarrow D^0 \Lambda \bar{\Sigma}^0) < 3.1 \times 10^{-5}$ is determined at $90\%$ confidence level.
Published: 2014

49. Cross sections for the reactionse+e−→KS0KL0,KS0KL0π+π−,KS0KS0π+π−, andKS0KS0K+K−from events with initial-state radiation

Author: R. Contri, Simon Akar, Matteo Rama, G. J. King, R. Prepost, Alberto Cervelli, R. Godang, Gabriele Simi, S. Prell, A. V. Gritsan, V. Poireau, C. L. Davis, B. Spaan, H. M. Lacker, P. C. Bloom, A. Soffer, A. Roodman, H. Briand, H. L. Lynch, V. E. Blinov, A. Palano, E. A. Kravchenko, A. Lusiani, P. F. Harrison, W. Gradl, E. Fioravanti, T. Pulliam, R. Gorodeisky, M. Simard, D. A. Roberts, G. Vasseur, D. Lindemann, S. Pacetti, B. Echenard, I. M. Peruzzi, R. Cowan, Roland Waldi, Corrado Angelini, D. Lopes Pegna, V. P. Druzhinin, C. Bozzi, K. Honscheid, B. A. Schumm, M. Posocco, A. M. Lutz, Dmytro Kovalskyi, F. Ferroni, David Hutchcroft, T. M. Hong, H. A. Neal, G. Casarosa, J. Olsen, M. T. Graham, Sau Lan Wu, R. C. Field, K. Yu Todyshev, P. D. Dauncey, T. Hartmann, D. W. G. S. Leith, F. De Mori, Christopher West, J. L. Ritchie, L. Li Gioi, A. Oyanguren, J. P. Lees, C. Buenger, A. R. Buzykaev, A. Hafner, I Skovpen Yu., A. Beaulieu, J. Ocariz, Maurizio Martinelli, P. Patteri, E. M. T. Puccio, A. G. Denig, S. I. Serednyakov, F. Bianchi, S. Dittrich, J. Va’vra, B. C. Wray, G. Finocchiaro, V. Luth, R. Cheaib, R. Y. So, B. Bhuyan, C. Hearty, R. F. Schwitters, M. S. Alam, D. Su, Denis Bernard, G. Wormser, J. M. Roney, P. M. Patel, S. Luitz, Tim Adye, O. Gruenberg, M. Hess, A. M. Eisner, J. M. LoSecco, R. Andreassen, R. D. Kass, V. Prasad, Stephen Robert Wagner, B. G. Fulsom, M. Piccolo, A. Stocchi, C. Hast, D. J. Lange, D. J. Summers, G. Piredda, W. Panduro Vazquez, C. Voss, Bogdan Malaescu, G. Calderini, A. Snyder, K. R. Schubert, L. Piemontese, Mauro Morandin, S. Bettarini, W. J. Wisniewski, R. J. Sobie, M. Morii, A. J. S. Smith, B. Oberhof, L. Vitale, F. Martinez-Vidal, Michael Sokoloff, G. Batignani, M. Mandelkern, M. V. Purohit, G. R. Bonneaud, Maria Roberta Monge, A. Adametz, J. Dorfan, S. Passaggio, N. Guttman, Y. B. Pan, J. Albert, R. Kowalewski, B. Stugu, T. S. Mattison, J. Cochran, J. Chauveau, C. P. Jessop, F. Simonetto, G. Marchiori, R. H. Schindler, E. Grauges, Mario Giorgi, J. J. Walsh, G Kolomensky Yu., B. G. Pushpawela, D. N. Brown, S. J. Sekula, A. Jawahery, P. Taras, E. P. Solodov, M. Verderi, Ph Leruste, N. Arnaud, M. K. Sullivan, B. N. Ratcliff, C. H. Cheng, E. Feltresi, Peter S. Kim, B. Hamilton, Andrea Rodriguez Perez, R. Ayad, William T. Ford, R. Faccini, F. Ferrarotto, A. J. Lankford, M. Gaspero, E. Paoloni, D. Payne, E. Gabathuler, W. R. Innes, F. C. Porter, F. Le Diberder, J. R. Fry, V. Santoro, E. Ben-Haim, M. L. Perl, A. M. Rossi, H. H. F. Choi, J. D. Richman, A. P. Onuchin, Timothy Gershon, S. M. Spanier, J. R. Smith, S. Emery, G. Onorato, R. Stroili, R. Cenci, W. Dunwoodie, R. de Sangro, E. O. Olaiya, X. C. Lou, J. M. Izen, C. Touramanis, G. Cibinetto, F. Di Lodovico, A. Filippi, Z. C. Huard, Pablo Villanueva-Perez, D. B. MacFarlane, S. Martellotti, Cheng Chen, Denis Derkach, G. De Nardo, W. H. Toki, L. Lanceri, P. Lewis, G. Grosdidier, J. W. Gary, Gabriella Sciolla, Enrico Robutti, P. Ongmongkolkul, U. Uwer, G. Raven, A. Calcaterra, George Lafferty, F. Palombo, T. Lueck, A. Zallo, V. B. Golubev, G. Lynch, J. R. Wilson, G. Eigen, G. P. Dubois-Felsmann, Roger Barlow, Martino Margoni, P. R. Burchat, T. Leddig, Biplab Dey, Fergus Wilson, G. A. Cowan, D. R. Peimer, R. Calabrese, Elisa Manoni, J. P. Coleman, H. R. Band, P. Sonnek, A. A. Salnikov, W. S. Lockman, F. Anulli, M. J. Lewczuk, Marcello Rotondo, M. Lo Vetere, L. T. Kerth, L. M. Cremaldi, N. Tasneem, S. Playfer, H. W. Wulsin, M. Chrzaszcz, M. Fritsch, Marco Bomben, K. T. Flood, M. Ebert, M. R. Convery, Alessandro Gaz, S. H. Robertson, R. M. White, Sridhara Dasu, C. Cartaro, A. M. Ruland, Douglas Wright, Eleonora Luppi, R. Sacco, Crisostomo Sciacca, D. Aston, Aidan Randle-Conde, A. Khan, G. Rizzo, J. Bougher, Herbert Koch, M. Franco Sevilla, D. G. Hitlin, D. Gamba, M. Bellis, J. A. McKenna, K. Griessinger, M. Carpinelli, D. J. Bard, F. Forti, Sw. Banerjee, Nicola Neri, Brian Meadows, U. Mallik, Hamad Ahmed, T. S. Miyashita, D. Bettoni, Florian Urs Bernlochner, I. Garzia, M. J. Lee, Thomas Latham, C. Patrignani, V. Tisserand, Maurizio Biasini, D. R. Muller, Tamara Vazquez Schroeder, Owen Rosser Long, A. Seiden, J. A. Ernst, P. Roudeau, L. Sun, C. Campagnari, Adrian John Bevan, I. M. Nugent, D. S. Chao, and M. Davier
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 0103 physical sciences, State (functional analysis), Atomic physics, Radiation, 010306 general physics, 01 natural sciences
Published: 2014

50. Search for the decayB¯0→Λc+p¯pp¯

Author: G. Finocchiaro, D. Lindemann, V. Luth, M. S. Alam, A. Snyder, B. C. Wray, Sw. Banerjee, D. Su, V. B. Golubev, C. Hearty, K. Yu. Todyshev, B. Lindquist, D. J. Summers, M. Piccolo, H. W. Wulsin, A. Palano, R. Sacco, V. E. Blinov, T. S. Mattison, Giulia Casarosa, G. Batignani, Corrado Angelini, R. J. Sobie, G. Wormser, Stephen Sekula, D. Lopes Pegna, G. Rizzo, M. Rama, L. Vitale, F. Martinez-Vidal, Dominik Müller, T. Schroeder, C. Hast, D. J. Lange, B. Oberhof, M. J. Lewczuk, E. A. Kravchenko, Crisostomo Sciacca, D. Aston, M. Mandelkern, David Hutchcroft, G. R. Bonneaud, A. Khan, C. Bozzi, G. J. King, J. A. McKenna, H. Ahmed, J. F. Benitez, Gabriele Simi, G. Piredda, M. Morii, P. Patteri, B. Bhuyan, K. Honscheid, B. Spaan, D. W. G. S. Leith, D. Bettoni, F. Simonetto, R. H. Schindler, C. L. Davis, W. Dunwoodie, Andrea Rodriguez Perez, James R. Wilson, Elisa Guido, J. L. Ritchie, S. I. Serednyakov, W. Gradl, L. Lanceri, Colin Jessop, Michael Sokoloff, M. Lo Vetere, William T. Ford, H. Briand, Enrico Robutti, P. Ongmongkolkul, B. G. Fulsom, A. P. Wagner, M. Posocco, G. Calderini, A. N. Yushkov, R. Prepost, D. Dujmic, A. A. Salnikov, Elisa Manoni, M. J. Lee, B. N. Ratcliff, I. Garzia, N. Tasneem, D. R. Peimer, S. Playfer, Dmytro Kovalskyi, D. H. Wright, R. Contri, R. Frey, Thomas Latham, C. Patrignani, J. P. Lees, V. Tisserand, V. Prasad, X. C. Lou, J. J. Walsh, Roberto Calabrese, E. Ben-Haim, G. De Nardo, S. M. Spanier, R. Schwierz, G. Sciolla, B. Hamilton, M. Ebert, Aidan Randle-Conde, E. Behn, J. R. Smith, J. Ocariz, M. T. Graham, Marcello Rotondo, G. Eigen, A. Stocchi, M. Franco Sevilla, L. M. Cremaldi, M. L. Perl, D. N. Brown, A. M. Rossi, Abner Soffer, Simon Akar, R. Godang, Weitao Wang, E. P. Solodov, R. Y. So, J. W. Gary, A. M. Lutz, S. Zambito, R. Baldini-Ferroli, Joseph Izen, W. J. Wisniewski, D. Kirkby, G. Vasseur, K. T. Flood, L. Piemontese, Ch Yèche, S. Pacetti, H. L. Lynch, Claudio Campagnari, R. Cowan, W. T. Meyer, R. Cheaib, A. M. Ruland, Timothy Gershon, V. Santoro, S. Martellotti, M. Carpinelli, T. Leddig, J. R. Fry, E. Gabathuler, W. R. Innes, R. Cenci, F. C. Porter, A. Calcaterra, C. Touramanis, H. R. Band, G. Onorato, C. H. Cheng, P. Lewis, A. Zallo, D. M. Strom, M. K. Sullivan, W. S. Lockman, R. Andreassen, F. De Mori, S. Passaggio, J. M. LoSecco, Maria Roberta Monge, O. Grünberg, F. Forti, A. Oyanguren, Bruce Schumm, J. Bougher, S. Prell, C. Bünger, Heiko Lacker, R. de Sangro, M. R. Convery, I. M. Nugent, C. Voß, Christopher West, E. Prencipe, M. Fritsch, P. Biassoni, N. B. Sinev, M. Bellis, E. Paoloni, A. Filippi, Eleonora Luppi, H. A. Neal, D. Monorchio, E. O. Olaiya, W. Park, Florian Urs Bernlochner, F. Palombo, T. Lueck, W. H. Toki, James H Cochran, V. Poireau, D. S. Chao, A. Jawahery, Chunhui Chen, K. R. Schubert, Y. B. Pan, P. D. Dauncey, James D. Olsen, P. C. Bloom, D. G. Hitlin, Andrei Gritsan, M. Verderi, M. Davier, A. Roodman, G. Cibinetto, L. T. Kerth, T. Hartmann, A. M. Eisner, B. Echenard, J. Chauveau, S. H. Robertson, E. Fioravanti, T. Pulliam, U. Mallik, Roland Waldi, F. Ferroni, E. Grauges, Mario Giorgi, A. R. Buzykaev, R. Kowalewski, G. Hamel de Monchenault, Sridhara Dasu, T. S. Miyashita, S. Sitt, M. Morandin, Paul Fraser Harrison, G. Raven, E. Feltresi, M. V. Purohit, D. Bernard, J. Albert, P. M. Patel, R. Stroili, S. Emery, M. Wittgen, Herbert Koch, Nicola Neri, Stephen Robert Wagner, A. Lusiani, S. Nelson, V. P. Druzhinin, P. R. Burchat, Denis Derkach, K. Griessinger, Maurizio Biasini, B. Malaescu, Brian Meadows, V. Ziegler, T. M. Hong, Owen Rosser Long, A. Adametz, A. Seiden, R. Gorodeisky, J. A. Ernst, Marco Bomben, H. Schröder, S. Luitz, A. P. Onuchin, L. Sun, Alberto Cervelli, P. Taras, Z. C. Huard, M. Simard, D. A. Roberts, Adrian John Bevan, J. P. Coleman, Douglas Wright, G. Grosdidier, M. Gaspero, Alessandro Gaz, R. F. Schwitters, Sau Lan Wu, A. Hafner, B. G. Pushpawela, E. M. T. Puccio, A. G. Denig, J. E. Brau, D. B. MacFarlane, S. Bettarini, George Lafferty, Yu. G. Kolomensky, A. J.S. Smith, G. P. Dubois-Felsmann, R. Ayad, R. M. White, C. Cartaro, P. Roudeau, L. Li Gioi, J. Va’vra, D. Gamba, N. Guttman, B. Stugu, G. Marchiori, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, J. D. Richman, Pablo Villanueva-Perez, D. J. Bard, G. A. Cowan, A. M. Gabareen, Tim Adye, R. D. Kass, U. Uwer, Roger Barlow, Martino Margoni, Yu. I. Skovpen, E. Torrence, Peter S. Kim, G. Lynch, M. L. Kocian, I. M. Peruzzi, F. Bianchi, J. Dorfan, Ph Leruste, N. Arnaud, Biplab Dey, Fergus Wilson, P. Sonnek, F. Di Lodovico, D. J. Payne, U. Nauenberg, F. Anulli, H. H. F. Choi, Maurizio Martinelli, J. M. Roney, and R. C. Field
Subjects: Charmed baryons, Physics, Nuclear physics, Nuclear and High Energy Physics, Branching fraction, Electron–positron annihilation, Analytical chemistry, Lambda, Bar (unit)
Abstract: We report a search for the decay B^0 → Λ^+_cppp. Using a data sample of 471×10^6 BB pairs collected with the BABAR detector at the PEP-II2 storage ring at SLAC, we find no events and set an upper limit on the branching fraction B(B^0 → Λ^+_cppp)×^(B(Λ^+_c→pK^−π^+))_(0.050)
Published: 2014

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