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285 results on '"B. Echenard"'

1. The Mu2e e.m. Calorimeter: Crystals and SiPMs Production Status

Author

S. Donati, M. Corradi, M. Ricci, T. S. Miyashita, M. Cordelli, G. Tassielli, S. Miscetti, I. I. Vasilyev, Gianantonio Pezzullo, F. Raffaelli, Luca Morescalchi, F. Happacher, E. Pedreschi, V. Glagolev, D. Caiulo, D. G. Hitlin, Z. Usubov, F. Grancagnolo, S. Giovannella, Yu.I. Davydov, F. Cervelli, F. Colao, B. Echenard, A. Saputi, E. Diociaiuti, S. Di Falco, J. Budagov, Ren-Yuan Zhu, N. Atanov, P. Murat, F. C. Porter, V. A. Baranov, F. Spinella, M. Martini, I. Sarra, R. Donghia, V. Tereshchenko, Atanov, N., Baranov, V., Budagov, J., Caiulo, D., Cervelli, F., Colao, F., Cordelli, M., Corradi, M., Davydov, Y. I., Falco, S. D., Diociaiuti, E., Donati, S., Donghia, R., Echenard, B., Giovannella, S., Glagolev, V., Grancagnolo, F., Happacher, F., Hitlin, D., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Pedreschi, E., Pezzullo, G., Porter, F., Raffaelli, F., Ricci, M., Saputi, A., Sarra, I., Spinella, F., Tassielli, G., Tereshchenko, V., Usubov, Z., Vasilyev, I. I., and Zhu, R. Y.

Subjects
Physics, Nuclear and High Energy Physics, Muon, Calorimeter (particle physics), Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Detector, Calorimetry, 01 natural sciences, Particle identification, Nuclear physics, Mu2e, Silicon photomultiplier, Nuclear Energy and Engineering, 0103 physical sciences, pure CsI crystals, silicon photomultipliers (SiPMs), High Energy Physics::Experiment, Fermilab, pure CsI crystal, Electrical and Electronic Engineering, Lepton
Abstract

The Mu2e experiment at Fermilab will search for the charged lepton flavor violating neutrino-less conversion of a negative muon into an electron in the field of an aluminum nucleus [1] , [2] . The Mu2e detector is comprised of a tracker, an electromagnetic calorimeter, and an external veto for cosmic rays. The calorimeter plays an important role in providing excellent particle identification capabilities, a fast and online trigger filter while aiding the track reconstruction capabilities. The calorimeter requirements are to provide a large acceptance for 100-MeV electrons and reach: 1) a time resolution better than 0.5 ns at 100 MeV; 2) an energy resolution O(10%) at 100 MeV; and 3) a position resolution of about 1 cm. The calorimeter consists of two disks, each one made of 674 pure CsI crystals readout by two large-area $2 \times 3$ array of UV-extended silicon photomultipliers (Mu2e SiPMs) of $6\,\,\times6$ mm2 dimensions. A large-scale prototype has been constructed with 51 preproduction crystals readout by 102 Mu2e SiPMs. It has been tested at the beam test facility in Frascati, demonstrating satisfying results compared to the Mu2e requirements. At the moment of writing, the crystals production phase is halfway through the work, while the SiPM production has been completed. An overview of the characterization tests is also reported, together with a description of the final calorimeter design.

Published
2020

2. 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

3. 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

4. Feebly-interacting particles : FIPs 2020 workshop report

Author

S. Cebrián, Pilar Hernández, Gian F. Giudice, G. Lanfranchi, Jacobo Lopez-Pavon, Mikhail Shaposhnikov, Simon Knapen, Andreas Ringwald, Yu-Dai Tsai, Oleg Ruchayskiy, Julian Heeck, James Baker Beacham, I. G. Irastorza, M. Hostert, S. N. Gninenko, Evgueni Goudzovski, Maurizio Giannotti, Felix Kahlhoefer, Jakob Salfeld-Nebgen, Joshua T. Ruderman, Asher Berlin, Marco Drewes, Joerg Jaeckel, Jocelyn Monroe, H. Russell, Philip Schuster, P. Agrawal, Maxim Pospelov, X. CidVidal, Yevgeny V. Stadnik, David D'Enterria, V. I. Martinez Outschoorn, Yotam Soreq, Kohsaku Tobioka, Silvia Pascoli, Lesya Shchutska, D. Redigolo, Gordan Krnjaic, A. De Roeck, Martin Bauer, Alexey Boyarsky, J. Swallow, S. Gori, A. Izmaylov, J. Shelton, B. Echenard, Agrawal, P, Bauer, M, Beacham, J, Berlin, A, Boyarsky, A, Cebrian, S, Cid-Vidal, X, D'Enterria, D, De Roeck, A, Drewes, M, Echenard, B, Giannotti, M, Giudice, GF, Gninenko, S, Gori, S, Goudzovski, E, Heeck, J, Hernandez, P, Hostert, M, Irastorza, IG, Izmaylov, A, Jaeckel, J, Kahlhoefer, F, Knapen, S, Krnjaic, G, Lanfranchi, G, Monroe, J, Outschoorn, VIM, Lopez-Pavon, J, Pascoli, S, Pospelov, M, Redigolo, D, Ringwald, A, Ruchayskiy, O, Ruderman, J, Russell, H, Salfeld-Nebgen, J, Schuster, P, Shaposhnikov, M, Shchutska, L, Shelton, J, Soreq, Y, Stadnik, Y, Swallow, J, Tobioka, K, and Tsai, YD

Subjects
interpretation of experiments: CERN LHC Coll, CERN Lab, scale: TeV, Physics and Astronomy (miscellaneous), LEPTON FLAVOR VIOLATION, Physics beyond the Standard Model, PROTON-PROTON COLLISIONS, Dark matter, FOS: Physical sciences, MODEL CP-VIOLATION, QC770-798, dark matter: direct detection, SOLAR AXION SEARCHES, Astrophysics, 01 natural sciences, law.invention, High Energy Physics - Phenomenology (hep-ph), ELECTROWEAK PHASE-TRANSITION, law, COHERENT PRIMAKOFF CONVERSION, VECTOR GAUGE BOSON, Nuclear and particle physics. Atomic energy. Radioactivity, 0103 physical sciences, TeV [scale], Particle theory, particle phenomenology, Dark sector, ddc:530, Beam dump, 010306 general physics, Collider, Engineering (miscellaneous), direct detection [dark matter], Particle Physics - Phenomenology, Physics, LEFT-RIGHT SYMMETRY, Large Hadron Collider, new physics, 010308 nuclear & particles physics, hep-ph, Data science, QB460-466, High Energy Physics - Phenomenology, NEUTRAL HEAVY-LEPTONS, axion, CERN LHC Coll [interpretation of experiments], beam dump, Neutrino, experimental results, BARYON-NUMBER NONCONSERVATION
Abstract

The European physical journal / C 81(11), 1015 (2021). doi:10.1140/epjc/s10052-021-09703-7, With the establishment and maturation of the experimental programs searching for new physics with sizeable couplings at the LHC, there is an increasing interest in the broader particle and astrophysics community for exploring the physics of light and feebly-interacting particles as a paradigm complementary to a New Physics sector at the TeV scale and beyond. FIPs 2020 has been the first workshop fully dedicated to the physics of feebly-interacting particles and was held virtually from 31 August to 4 September 2020. The workshop has gathered together experts from collider, beam dump, fixed target experiments, as well as from astrophysics, axions/ALPs searches, current/future neutrino experiments, and dark matter direct detection communities to discuss progress in experimental searches and underlying theory models for FIPs physics, and to enhance the cross-fertilisation across different fields. FIPs 2020 has been complemented by the topical workshop ���Physics Beyond Colliders meets theory���, held at CERN from 7 June to 9 June 2020. This document presents the summary of the talks presented at the workshops and the outcome of the subsequent discussions held immediately after. It aims to provide a clear picture of this blooming field and proposes a few recommendations for the next round of experimental results., Published by Springer, Heidelberg

Published
2021

5. 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

6. 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

7. 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

8. 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

9. The Mu2e calorimeter: Quality assurance of production crystals and SiPMs

Author

M. Martini, Ren-Yuan Zhu, G. Tassielli, Z. Usubov, E. Pedreschi, G. Corradi, D. G. Hitlin, D. Caiulo, V. Glagolev, F. Spinella, F. Cervelli, I. Sarra, F. Happacher, S. Miscetti, M. Cordelli, R. Donghia, V. Tereshchenko, F. Grancagnolo, N. Atanov, E. Diociaiuti, S. Donati, Gianantonio Pezzullo, I. I. Vasilyev, S. Giovannella, Yu.I. Davydov, F. Colao, B. Echenard, F. Raffaelli, A. Saputi, S. Di Falco, J. Budagov, Luca Morescalchi, M. Ricci, T. S. Miyashita, P. Murat, F. C. Porter, V. A. Baranov, Atanov, N., Baranov, V., Budagov, J., Caiulo, D., Cervelli, F., Colao, F., Cordelli, M., Corradi, G., Davydov, Yu. I., Di Falco, S., Diociaiuti, E., Donati, S., Donghia, R., Echenard, B., Giovannella, S., Glagolev, V., Grancagnolo, F., Happacher, F., Hitlin, D. G., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Pedreschi, E., Pezzullo, G., Porter, F., Raffaelli, F., Ricci, M., Saputi, A., Sarra, I., Spinella, F., Tassielli, G., Tereshchenko, V., Usubov, Z., Vasilyev, I. I., and Zhu, R. Y.

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, 030218 nuclear medicine & medical imaging, Crystal, High Energy Physics - Experiment (hep-ex), 03 medical and health sciences, 0302 clinical medicine, Silicon photomultiplier, 0103 physical sciences, Mu2e, Instrumentation, Physics, Mu2e, electromagnetic calorimeter, crystal calorimeter, Calorimeter (particle physics), 010308 nuclear & particles physics, business.industry, Instrumentation and Detectors (physics.ins-det), Technical specifications, 3. Good health, Cathode ray, Optoelectronics, business, Quality assurance
Abstract

The Mu2e calorimeter is composed of two disks each containing 1348 pure CsI crystals, each crystal read out by two arrays of 6x6 mm2 monolithic SiPMs. The experimental requirements have been translated in a series of technical specifications for both crystals and SiPMs. Quality assurance tests, on first crystal and then SiPM production batches, confirm the performances of preproduction samples previously assembled in a calorimeter prototype and tested with an electron beam. The production yield is sufficient to allow the construction of a calorimeter of the required quality in the expected times., Comment: 2 pages, 2 figures, 14th meeting on Advanced Detectors

Published
2019
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10. Search for a Stable Six-Quark State at BABAR

Author

J. Chauveau, F. De Mori, Heiko Lacker, J. L. Ritchie, Yu. I. Skovpen, S. I. Serednyakov, S. Bettarini, G. Finocchiaro, R. Y. So, K. R. Schubert, J. Dorfan, F. F. Wilson, R. Gorodeisky, D. A. Roberts, Roberto Calabrese, B. Oberhof, B. Bhuyan, K. Yu. Todyshev, P. Taras, A. Hafner, Giulia Casarosa, G. Wormser, V. B. Golubev, E. M. T. Puccio, J. Ocariz, J. W. Gary, D. B. MacFarlane, G. Rizzo, M. Rama, E. Grauges, Stefan Spanier, S. Prell, James H Cochran, N. Tasneem, Mario Giorgi, R. F. Schwitters, A. Lusiani, H. A. Neal, A. Calcaterra, R. Cheaib, W. R. Innes, A. Palano, V. P. Druzhinin, Randall Sobie, T. Schroeder, C. H. Cheng, Maurizio Biasini, D. Bettoni, C. Cartaro, Aidan Randle-Conde, Abner Soffer, R. Cenci, I. M. Peruzzi, B. Echenard, G. R. Bonneaud, Tim Adye, David Hutchcroft, J. M. LoSecco, D. Bernard, P. C. Kim, A. Zallo, R. de Sangro, B. Dey, R. D. Kass, Owen Rosser Long, S. L. Wu, S. Luitz, P. Patteri, J. J. Walsh, J. Va’vra, W. J. Wisniewski, R. Stroili, A. G. Denig, J. P. Lees, R. Godang, M. T. Graham, Eleonora Luppi, G. J. King, D. N. Brown, I. Garzia, A. R. Buzykaev, M. S. Alam, A. P. Onuchin, L. Sun, R. Sacco, David Lange, W. Dunwoodie, Y. Li, C. Patrignani, B. G. Fulsom, V. Tisserand, J. A. McKenna, Adrian John Bevan, A. Beaulieu, B. G. Pushpawela, Andrei Gritsan, A. M. Lutz, E. Paoloni, N. Arnaud, Colin Jessop, R. Prepost, G. D. Lafferty, Douglas Wright, V. Santoro, L. Zani, R. Kowalewski, L. M. Cremaldi, J. A. Ernst, W. Gradl, S. Passaggio, L. Lanceri, M. R. Convery, C. Bünger, Florian Urs Bernlochner, James R. Wilson, F. Palombo, T. Lueck, A. J.S. Smith, E. Gabathuler, A. Jawahery, F. C. Porter, M. Heß, Martino Margoni, Simon Akar, D. G. Hitlin, G. Cibinetto, G. Vasseur, K. T. Flood, E. A. Kozyrev, A. Filippi, Alessandro Pilloni, D. R. Peimer, B. N. Ratcliff, Hamad Ahmed, B. T. Meadows, G. Raven, M. V. Purohit, R. C. Field, F. Forti, M. Chrzaszcz, M. D. Sokoloff, Nicola Neri, P. R. Burchat, R. Cowan, C. Voß, J. Albert, G. Eigen, D. W. G. S. Leith, A. M. Eisner, M. Ebert, Stephen Sekula, F. Bianchi, D. Gamba, E. P. Solodov, T. S. Miyashita, S. Dittrich, G. Calderini, C. Bozzi, K. Honscheid, C. Hearty, R. J. Barlow, M. Posocco, Sw. Banerjee, S. Emery, N. Guttman, G. De Nardo, D. J. Summers, M. Bellis, G. Marchiori, M. Bomben, L. Vitale, F. Ferrarotto, A. J. Lankford, F. Le Diberder, F. Martinez-Vidal, Dominik Müller, M. Fritsch, span, G. A. Cowan, J. M. Roney, X. C. Lou, Gabriele Simi, J. G. Smith, C. L. Davis, F. Di Lodovico, D. J. Payne, Riccardo Faccini, A. Roodman, R. M. Seddon, E. Fioravanti, Roland Waldi, F. Ferroni, M. Rotondo, M. Röhrken, Paul Fraser Harrison, V. Poireau, Ju-Young Kim, M. Piccolo, G. Batignani, E. Ben-Haim, Stephen Robert Wagner, M. K. Sullivan, A. M. Rossi, Joseph Izen, S. Martellotti, M. Carpinelli, I. M. Nugent, D. S. Chao, M. Davier, Z. C. Huard, W. Panduro Vazquez, W. S. Lockman, J. P. Coleman, F. Anulli, Alessandro Gaz, S. H. Robertson, Herbert Koch, K. Griessinger, A. Oyanguren, span>B ar, C. Touramanis, T. Leddig, O. Grünberg, Elisa Manoni, D. Aston, M. Verderi, T. E. Latham, T. S. Mattison, C. Hast, G. Piredda, U. Mallik, T. J. Gershon, F. Simonetto, Yu G. Kolomensky, E. A. Kravchenko, C. H. Chen, Vladimir Blinov, Crisostomo Sciacca, P. Ongmongkolkul, Ministerio de Ciencia e Innovación (España), Lees, J, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, D, Kolomensky, Y, Fritsch, M, Koch, H, Schroeder, T, Hearty, C, Mattison, T, Mckenna, J, So, R, Blinov, V, Buzykaev, A, Druzhinin, V, Golubev, V, Kozyrev, E, Kravchenko, E, Onuchin, A, Serednyakov, S, Skovpen, Y, Solodov, E, Todyshev, K, Lankford, A, Gary, J, Long, O, Eisner, A, Lockman, W, Panduro Vazquez, W, Chao, D, Cheng, C, Echenard, B, Flood, K, Hitlin, D, Kim, J, Li, Y, Miyashita, T, Ongmongkolkul, P, Porter, F, Rohrken, M, Huard, Z, Meadows, B, Pushpawela, B, Sokoloff, M, Sun, L, Smith, J, Wagner, S, 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, I, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Lacker, H, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, A, Arnaud, N, Davier, M, Le Diberder, F, Lutz, A, Wormser, G, Lange, D, Wright, D, Coleman, J, Gabathuler, E, Hutchcroft, D, Payne, D, Touramanis, C, Bevan, A, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, S, Davis, C, Denig, A, Gradl, W, Griessinger, K, Hafner, A, Schubert, K, Barlow, R, Lafferty, G, Cenci, R, Jawahery, A, Roberts, D, Cowan, R, Robertson, S, Seddon, R, Dey, B, Neri, N, Palombo, F, Cheaib, R, Cremaldi, L, Godang, R, Summers, D, Taras, P, De Nardo, G, Sciacca, C, Raven, G, Jessop, C, Losecco, J, Honscheid, K, Kass, R, Gaz, A, Margoni, M, Posocco, M, Simi, G, Simonetto, F, Stroili, R, Akar, S, Ben-Haim, E, Bomben, M, Bonneaud, G, Calderini, G, Chauveau, J, Marchiori, G, Ocariz, J, Biasini, M, Manoni, E, Rossi, A, Batignani, G, Bettarini, S, Carpinelli, M, Casarosa, G, Chrzaszcz, M, Forti, F, Giorgi, M, Lusiani, A, Oberhof, B, Paoloni, E, Rama, M, Rizzo, G, Walsh, J, Zani, L, Smith, A, Anulli, F, Faccini, R, Ferrarotto, F, Ferroni, F, Pilloni, A, Piredda, G, Bunger, C, Dittrich, S, Grunberg, O, Hess, M, Leddig, T, Voss, C, Waldi, R, Adye, T, Wilson, F, Emery, S, Vasseur, G, Aston, D, Cartaro, C, Convery, M, Dorfan, J, Dunwoodie, W, Ebert, M, Field, R, Fulsom, B, Graham, M, Hast, C, Innes, W, Kim, P, Leith, D, Luitz, S, Macfarlane, D, Muller, D, Neal, H, Ratcliff, B, Roodman, A, Sullivan, M, Va'Vra, J, Wisniewski, W, Purohit, M, Wilson, J, Randle-Conde, A, Sekula, S, Ahmed, H, Bellis, M, Burchat, P, Puccio, E, Alam, M, Ernst, J, Gorodeisky, R, Guttman, N, Peimer, D, Soffer, A, Spanier, S, Ritchie, J, Schwitters, R, Izen, J, Lou, X, Bianchi, F, De Mori, F, Filippi, A, Gamba, D, Lanceri, L, Vitale, L, Martinez-Vidal, F, Oyanguren, A, Albert, J, Beaulieu, A, Bernlochner, F, King, G, Kowalewski, R, Lueck, T, Nugent, I, Roney, J, Sobie, R, Tasneem, N, Gershon, T, Harrison, P, Latham, T, Prepost, R, Wu, S, Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Yu. G., Fritsch, M., Koch, H., Schroeder, T., Hearty, C., Mattison, T. S., Mckenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kozyrev, E. A., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Y. I., Solodov, E. P., Todyshev, K. Y., Lankford, A. J., Gary, J. W., Long, O., Eisner, A. M., Lockman, W. S., Panduro Vazquez, W., Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Li, Y., Miyashita, T. S., Ongmongkolkul, P., Porter, F. C., Rohrken, M., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Smith, J. G., Wagner, S. R., 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, I. M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Lacker, H. M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A. V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A. M., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, S., Davis, C. L., Denig, A. G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Jawahery, A., Roberts, D. A., Cowan, R., Robertson, S. H., Seddon, R. M., Dey, B., Neri, N., Palombo, F., Cheaib, R., Cremaldi, L., Godang, R., Summers, D. J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C. P., Losecco, J. M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Zani, L., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bunger, C., Dittrich, S., Grunberg, O., Hess, M., Leddig, T., Voss, C., Waldi, R., Adye, T., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M. R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., Macfarlane, D. B., Muller, D. R., Neal, H., Ratcliff, B. N., Roodman, A., Sullivan, M. K., Va'Vra, J., Wisniewski, W. J., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Ahmed, H., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F. U., King, G. J., Kowalewski, R., Lueck, T., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Prepost, R., Wu, S. L., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, BaBar, Lees J.P., Poireau V., Tisserand V., Grauges E., Palano A., Eigen G., Brown D.N., Kolomensky Yu.G., Fritsch M., Koch H., Schroeder T., Hearty C., Mattison T.S., McKenna J.A., So R.Y., Blinov V.E., Buzykaev A.R., Druzhinin V.P., Golubev V.B., Kozyrev E.A., Kravchenko E.A., Onuchin A.P., Serednyakov S.I., Skovpen Y.I., Solodov E.P., Todyshev K.Y., Lankford A.J., Gary J.W., Long O., Eisner A.M., Lockman W.S., Panduro Vazquez W., Chao D.S., Cheng C.H., Echenard B., Flood K.T., Hitlin D.G., Kim J., Li Y., Miyashita T.S., Ongmongkolkul P., Porter F.C., Rohrken M., Huard Z., Meadows B.T., Pushpawela B.G., Sokoloff M.D., Sun L., Smith J.G., Wagner S.R., 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 I.M., Piccolo M., Rotondo M., Zallo A., Passaggio S., Patrignani C., Lacker H.M., Bhuyan B., Mallik U., Chen C., Cochran J., Prell S., Gritsan A.V., Arnaud N., Davier M., Le Diberder F., Lutz A.M., Wormser G., Lange D.J., Wright D.M., Coleman J.P., Gabathuler E., Hutchcroft D.E., Payne D.J., Touramanis C., Bevan A.J., Di Lodovico F., Sacco R., Cowan G., Banerjee S., Davis C.L., Denig A.G., Gradl W., Griessinger K., Hafner A., Schubert K.R., Barlow R.J., Lafferty G.D., Cenci R., Jawahery A., Roberts D.A., Cowan R., Robertson S.H., Seddon R.M., Dey B., Neri N., Palombo F., Cheaib R., Cremaldi L., Godang R., Summers D.J., Taras P., De Nardo G., Sciacca C., Raven G., Jessop C.P., Losecco J.M., Honscheid K., Kass R., Gaz A., Margoni M., Posocco M., Simi G., Simonetto F., Stroili R., Akar S., Ben-Haim E., Bomben M., Bonneaud G.R., Calderini G., Chauveau J., Marchiori G., Ocariz J., Biasini M., Manoni E., Rossi A., Batignani G., Bettarini S., Carpinelli M., Casarosa G., Chrzaszcz M., Forti F., Giorgi M.A., Lusiani A., Oberhof B., Paoloni E., Rama M., Rizzo G., Walsh J.J., Zani L., Smith A.J.S., Anulli F., Faccini R., Ferrarotto F., Ferroni F., Pilloni A., Piredda G., Bunger C., Dittrich S., Grunberg O., Hess M., Leddig T., Voss C., Waldi R., Adye T., Wilson F.F., Emery S., Vasseur G., Aston D., Cartaro C., Convery M.R., Dorfan J., Dunwoodie W., Ebert M., Field R.C., Fulsom B.G., Graham M.T., Hast C., Innes W.R., Kim P., Leith D.W.G.S., Luitz S., Macfarlane D.B., Muller D.R., Neal H., Ratcliff B.N., Roodman A., Sullivan M.K., Va'Vra J., Wisniewski W.J., Purohit M.V., Wilson J.R., Randle-Conde A., Sekula S.J., Ahmed H., Bellis M., Burchat P.R., Puccio E.M.T., Alam M.S., Ernst J.A., Gorodeisky R., Guttman N., Peimer D.R., Soffer A., Spanier S.M., Ritchie J.L., Schwitters R.F., Izen J.M., Lou X.C., Bianchi F., De Mori F., Filippi A., Gamba D., Lanceri L., Vitale L., Martinez-Vidal F., Oyanguren A., Albert J., Beaulieu A., Bernlochner F.U., King G.J., Kowalewski R., Lueck T., Nugent I.M., Roney J.M., Sobie R.J., Tasneem N., Gershon T.J., Harrison P.F., Latham T.E., Prepost R., Wu S.L., Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Skovpen, Yu. I., Todyshev, K. Yu., Röhrken, M., de Sangro, R., Banerjee, Sw., Bünger, C., Grünberg, O., Heß, M., Voß, C., Va’Vra, J., Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPhP), Massachusetts Institute of Technology. Laboratory for Nuclear Science, and Cowan, Ray F

Subjects
Kjerne- og elementærpartikkelfysikk: 431 [VDP], branching ratio: upper limit, Electron–positron annihilation, Bound state, General Physics and Astronomy, BaBar experiment, Quarks, Upsilon(10355): rare decay, Upsilon(10355): electroproduction, Upsilon(10020): branching ratio, particle: exotic, upsilon mesons: hadronic decay, 01 natural sciences, decay, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Upsilon(10020): electroproduction, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physic, QC, QB, Exotic particles, Physics, new physics: search for, Settore FIS/01 - Fisica Sperimentale, electron positron: colliding beams, detector, limits, decay, Nuclear and elementary particle physics: 431 [VDP], Particles, Dark matter (Astronomy), Confidence level, baryon: dark matter, Upsilon(10020): rare decay, Branching fraction, Matèria fosca (Astronomia), Quark, Particle physics, Dark matter, FOS: Physical sciences, Lambda: pair production, electron positron: annihilation, Partícules (Matèria), NO, Physics and Astronomy (all), BABAR experiment, 0103 physical sciences, Atomic physic, Upsilon(10355): branching ratio, 010306 general physics, detector, dark matter: mass, State (functional analysis), stability, SLAC PEP Stor, HEP, A-stable, BaBar, Elementary Particles and Fields, High Energy Physics::Experiment, limits, experimental results
Abstract

Recent investigations have suggested that the six-quark combination uuddss could be a deeply bound state (S) that has eluded detection so far, and a potential dark matter candidate. We report the first search for a stable, doubly strange six-quark state in Upsilon -> S anti-Lambda anti-Lambda decays based on a sample of 90 million Upsilon(2S) and 110 million Upsilon(3S) decays collected by the BABAR experiment. No signal is observed, and 90% confidence level limits on the combined Upsilon(2S,3S) -> S anti-Lambda anti-Lambda branching fraction in the range (1.2-1.4)x10^-7 are derived for m_S < 2.05 GeV. These bounds set stringent limits on the existence of such exotic particles., 7 pages, 4 figures, published version

Published
2019

11. Design and test of the Mu2e undoped CsI + SiPM crystal calorimeter

Author

G. Tassielli, F. Grancagnolo, M. Cordelli, S. Giovannella, Ren-Yuan Zhu, Yu.I. Davydov, F. Colao, D. Caiulo, B. Echenard, I. I. Vasilyev, R. Donghia, M. Ricci, V. Tereshchenko, J. Budagov, T. S. Miyashita, S. Donati, V. Glagolev, F. Happacher, Luca Morescalchi, M. Corradi, S. Miscetti, E. Diociaiuti, Gianantonio Pezzullo, F. Spinella, E. Pedreschi, D. G. Hitlin, F. Cervelli, F. Raffaelli, N. Atanov, A. Saputi, S. Di Falco, M. Martini, Z. Usubov, P. Murat, F. C. Porter, V. A. Baranov, I. Sarra, Atanov, N., Baranov, V., Budagov, J., Caiulo, D., Cervelli, F., Colao, F., Cordelli, M., Corradi, G., Davydov, Yu. I., Di Falco, S., Diociaiuti, E., Donati, S., Donghia, R., Echenard, B., Giovannella, S., Glagolev, V., Grancagnolo, F., Happacher, F., Hitlin, D., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Pedreschi, E., Pezzullo, G., Porter, F., Raffaelli, F., Ricci, M., Saputi, A., Sarra, I., Spinella, F., Tassielli, G., Tereshchenko, V., Usubov, Z., Vasilyev, I. I., and Zhu, R. Y.

Subjects
Physics, Nuclear and High Energy Physics, Muon, Calorimeter (particle physics), Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, SiPMs, Calorimetry, 01 natural sciences, Particle identification, Silicon photomultiplier, Optics, 0103 physical sciences, Mu2e, Cathode ray, High Energy Physics::Experiment, Test beam, Fermilab, Pure CsI crystals, 010306 general physics, business, Instrumentation
Abstract

The Mu2e experiment at Fermilab will search for the charged-lepton flavour violating neutrino-less conversion of a negative muon into an electron in the field of an aluminum nucleus. The calorimeter plays an important role in providing a fast trigger filter, excellent particle identification and a seeding for track reconstruction. Its requirements are to provide an energy (timing) resolution better than 10% (0.5 ns) and a position resolution below 1 cm, for 100 MeV electrons. The calorimeter consists of two disks, each one made of 674 un-doped CsI crystals readout by two large area arrays of 2 × 3 UV-extended SiPMs of 6 × 6 mm^2 dimensions. A large scale prototype (Module-0) has been constructed and tested with an electron beam in the energy range between 60 and 120 MeV at the BTF of Frascati National Laboratories. Results demonstrated that this calorimeter satisfies the Mu2e requirements.

Published
2019
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12. Mu2e calorimeter readout system

Author

E. Pedreschi, J. Budagov, D. G. Hitlin, G. Polacco, F. Happacher, S. Miscetti, N. Atanov, S. Donati, M. Sozzi, M. Cordelli, Luca Baldini, I. I. Vasilyev, A. Saputi, Gianantonio Pezzullo, M. Ricci, Luigi Lazzeri, Ren-Yuan Zhu, S. Faetti, S. Giudici, S. Di Falco, Z. Usubov, T. S. Miyashita, I. Sarra, Luca Morescalchi, F. Grancagnolo, F. Colao, P. Murat, F. Cervelli, R. Donghia, B. Echenard, F. Spinella, G. Corradi, F. C. Porter, Fabrizio Cei, V. Tereshchenko, Donato Nicolo, F. Raffaelli, V. A. Baranov, D. Caiulo, S. Giovannella, Yu.I. Davydov, V. Glagolev, M. Martini, G. Tassielli, Francesco D'Errico, E. Diociaiuti, Atanov, N., Baranov, V., Baldini, L., Budagov, J., Caiulo, D., Cei, F., Cervelli, F., Colao, F., Cordelli, M., Corradi, G., Davydov, Yu. I., D'Errico, F., Di Falco, S., Diociaiuti, E., Donati, S., Donghia, R., Echenard, B., Faetti, S., Giovannella, S., Giudici, S., Glagolev, V., Grancagnolo, F., Happacher, F., Hitlin, D. G., Lazzeri, L., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Nicolò, D., Pedreschi, E., Pezzullo, G., Polacco, G., Porter, F., Raffaelli, F., Ricci, M., Saputi, A., Sarra, I., Sozzi, M., Spinella, F., Tassielli, G., Tereshchenko, V., Usubov, Z., Vasilyev, I. I., and Zhu, R. Y.

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, Mu2e calorimeter, 01 natural sciences, Signal, High Energy Physics - Experiment, 030218 nuclear medicine & medical imaging, High Energy Physics - Experiment (hep-ex), 03 medical and health sciences, 0302 clinical medicine, Silicon photomultiplier, 0103 physical sciences, Mu2e, Waveform, Instrumentation, Digitizer, Physics, Front-end electronics, Radiation tolerance, Calorimeter (particle physics), 010308 nuclear & particles physics, business.industry, Amplifier, Linear regulator, High voltage, Instrumentation and Detectors (physics.ins-det), Optoelectronics, business
Abstract

The Mu2e electromagnetic calorimeter is made of two disks of un-doped parallelepiped CsI crystals readout by SiPM. There are 674 crystals in one disk and each crystal is readout by an array of two SiPM. The readout electronics is composed of two types of modules: 1) the front-end module hosts the shaping amplifier and the high voltage linear regulator; since one front-end module is interfaced to one SiPM, a total of 2696 modules are needed for the entire calorimeter; 2) a waveform digitizer provides a further level of amplification and digitizes the SiPM signal at the sampling frequency of $200\ \text{M}\text{Hz}$ with 12-bits ADC resolution; since one board digitizes the data received from 20 SiPMs, a total of 136 boards are needed. The readout system operational conditions are hostile: ionization dose of $20\ \text{krads}$, neutron flux of $10^{12}\ \mathrm{n}(1\ \text{MeVeq})/\text{cm}^2$, magnetic field of $1\ \text{T}$ and in vacuum level of $10^{-4}\ \text{Torr}$. A description of the readout system and qualification tests is reported.

Published
2019
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13. 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

14. 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

15. 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

16. Measurement of the γ*γ*→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

17. Construction status of the Mu2e crystal calorimeter

Author

R. Donghia, V. Tereshchenko, D. Pasciuto, J. Budagov, M. Cordelli, S. Donati, F. Grancagnolo, I. Sarra, Claudio Ferrari, F. Spinella, Dariush Hampai, C. Bloise, E. Diociaiuti, Gianantonio Pezzullo, N. Atanov, A. Saputi, T. S. Miyashita, S. Miscetti, F. Cervelli, G. Tassielli, I. I. Vasilyev, Anna Zanetti, Z. Usubov, Ren-Yuan Zhu, E. Pedreschi, S. Di Falco, D. G. Hitlin, V. V. Glagolev, Luca Morescalchi, M. Corradi, P. Murat, M. Martini, F. C. Porter, V. A. Baranov, F. Colao, B. Echenard, S. Giovannella, Yu.I. Davydov, F. Happacher, F. Raffaelli, A. Marini, Atanov, N., Baranov, V., Bloise, C., Budagov, J., Cervelli, F., Colao, F., Cordelli, M., Corradi, M., Davydov, Y. I., Falco, S. D., Diociaiuti, E., Donati, S., Donghia, R., Echenard, B., Ferrari, C., Giovannella, S., Glagolev, V., Grancagnolo, F., Hampai, D., Happacher, F., Hitlin, D., Marini, A., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Pasciuto, D., Pedreschi, E., Pezzullo, G., Porter, F., Raffaelli, F., Saputi, A., Sarra, I., Spinella, F., Tassielli, G. F., Tereshchenko, V., Usubov, Z., Vasilyev, I. I., Zanetti, A., and Zhu, R. Y.

Subjects
Materials science, Muon, Calorimeter (particle physics), Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, Detector, Cosmic ray, 01 natural sciences, Particle identification, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Optics, 0103 physical sciences, Mu2e, Cathode ray, High Energy Physics::Experiment, Fermilab, business, Instrumentation, Mathematical Physics
Abstract

The Mu2e experiment at Fermilab will search for the charged-lepton flavor violating neutrino-less conversion of a negative muon into an electron in the field of an aluminum nucleus. The Mu2e detector is composed of a tracker, an electromagnetic calorimeter and an external veto for cosmic rays. The calorimeter plays an important role in providing excellent particle identification capabilities and a fast online trigger filter, while aiding the track reconstruction capabilities. Calorimeter requirements are to provide a large acceptance for 0∼10 MeV electrons and reach: I) a time resolution better than 0.5 ns; ii) an energy resolution better than 10%; and iii) a position resolution of 1 cm. The calorimeter consists of two disks, each one made of 674 pure CsI crystals. Each crystal is readout by two large area 2×3 arrays of UV-extended SiPMs of 6×6 mm2 dimensions. A large scale prototype (Module-0) has been tested at an electron beam. We report here the tests done to finalize the calorimeter design, the results obtained with Module-0 and the status of production. At this time, the performance characteristics of 85% of the crystals and all of the SiPMs have been measured. The calorimeter engineering drawings have been completed and the large mechanical components are under fabrication. Analog and digital electronics have been prototyped and tested with irradiation dose. Their serial production is being organized. The calorimeter assembly phase is planned for mid-2020.

Published
2020

18. Design and status of the Mu2e crystal calorimeter

Author

Claudio Ferrari, G. Tassielli, S. Ceravolo, S. Donati, Gianantonio Pezzullo, Dariush Hampai, C. Bloise, Anna Zanetti, F. Spinella, R. Donghia, G. Corradi, V. Tereshchenko, S. Giovannella, Yu.I. Davydov, M. Cordelli, D. Pasciuto, F. Cervelli, I. Sarra, F. Colao, N. Atanov, F. Grancagnolo, E. Pedreschi, B. Echenard, S. Miscetti, P. Murat, D. G. Hitlin, F. C. Porter, V. A. Baranov, T. S. Miyashita, F. Happacher, M. Martini, F. Raffaelli, Ren-Yuan Zhu, V. Glagolev, I. I. Vasilyev, Luca Morescalchi, E. Diociaiuti, A. Saputi, S. Di Falco, J. Budagov, Z. Usubov, Atanov, N., Baranov, V., Bloise, C., Budagov, J., Cervelli, F., Ceravolo, S., Colao, F., Cordelli, M., Corradi, G., Davydov, Y. I., Di Falco, S., Diociaiuti, E., Donati, S., Donghia, R., Echenard, B., Ferrari, C., Giovannella, S., Glagolev, V., Grancagnolo, F., Hampai, D., Happacher, F., Hitlin, D., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Pasciuto, D., Pedreschi, E., Pezzullo, G., Porter, F., Raffaelli, F., Saputi, A., Sarra, I., Spinella, F., Tassielli, G., Tereshchenko, V., Usubov, Z., Vasilyev, I. I., Zanetti, A., and Zhu, R. Y.

Subjects
Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Orders of magnitude (temperature), SiPMs, Calorimetry, 7. Clean energy, 01 natural sciences, Particle identification, 030218 nuclear medicine & medical imaging, Mu2e, Pure CsI crystals, 03 medical and health sciences, 0302 clinical medicine, Silicon photomultiplier, Optics, 0103 physical sciences, Fermilab, Instrumentation, Pure CsI crystal, Physics, Muon, Calorimeter (particle physics), 010308 nuclear & particles physics, business.industry, Detector, High Energy Physics::Experiment, business
Abstract

The Mu2e experiment at Fermilab searches for the coherent neutrino-less muon to electron conversion in the Coulomb field of an aluminum nucleus. This charged-lepton flavor violating process is characterized by a distinctive signature of a mono-energetic electron ( ∼ 105 MeV/c) and its observation will be a clear signature of new physics beyond the Standard Model. The Mu2e goal is to improve by four orders of magnitude the search sensitivity with respect to the previous experiments. The Mu2e detector is composed of a tracker, an electromagnetic calorimeter and an external veto for cosmic rays. The calorimeter plays an important role in providing excellent particle identification capabilities, a fast online trigger filter while aiding the track reconstruction capabilities. It consists of 1348 pure CsI crystals divided in two annular disks, each one readout by two large area Silicon Photomultipliers. A large scale prototype has been tested with an electron beam , demonstrating to largely satisfy the Mu2e requirements. At the moment of writing, the crystals and SiPMs production phase is halfway through the completion. An overview of the characterization tests is reported, together with a description of the final mechanical and electronical design.

Published
2020

19. 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

20. 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

21. Quality Assurance on Undoped CsI Crystals for the Mu2e Experiment

Author

N. Atanov, V. Baranov, J. Budagov, D. Caiulo, F. Cervelli, F. Colao, M. Cordelli, G. Corradi, Yu. I. Davydov, S. Di Falco, E. Diociaiuti, S. Donati, R. Donghia, B. Echenard, S. Giovannella, V. Glagolev, F. Grancagnolo, F. Happacher, D. Hitlin, C. Hu, M. Martini, S. Miscetti, T. Miyashita, L. Morescalchi, P. Murat, E. Pedreschi, G. Pezzullo, F. Porter, F. Raffaelli, M. Ricci, A. Saputi, I. Sarra, F. Spinella, G. Tassielli, V. Tereshchenko, Z. Usubov, I. I. Vasilyev, L. Zhang, R. Y. Zhu, Atanov, N., Baranov, V., Budagov, J., Caiulo, D., Cervelli, F., Colao, F., Cordelli, M., Corradi, G., Davydov, Yu. I., Di Falco, S., Diociaiuti, E., Donati, S., Donghia, R., Echenard, B., Giovannella, S., Glagolev, V., Grancagnolo, F., Happacher, F., Hitlin, D., Hu, C., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Pedreschi, E., Pezzullo, G., Porter, F., Raffaelli, F., Ricci, M., Saputi, A., Sarra, I., Spinella, F., Tassielli, G., Tereshchenko, V., Usubov, Z., Vasilyev, I. I., Zhang, L., and Zhu, R. Y.

Subjects
Nuclear and High Energy Physics, Materials science, Physics - Instrumentation and Detectors, Silicon, Physics::Instrumentation and Detectors, Photoconductivity, Crystals, Correlation, Photoconductivity, Energy resolution, Silicon carbide, Current measurement, Radiation effects, chemistry.chemical_element, FOS: Physical sciences, Radiation effects, Silicon carbide, 01 natural sciences, Crystals, 030218 nuclear medicine & medical imaging, High Energy Physics - Experiment, Crystal, 03 medical and health sciences, High Energy Physics - Experiment (hep-ex), 0302 clinical medicine, Ionization, Condensed Matter::Superconductivity, 0103 physical sciences, Mu2e, Neutron, Electrical and Electronic Engineering, Energy resolution, Radiation hardening, Scintillation, 010308 nuclear & particles physics, business.industry, Instrumentation and Detectors (physics.ins-det), Current measurement, 3. Good health, Calorimeter, Correlation, Nuclear Energy and Engineering, chemistry, Optoelectronics, business
Abstract

The Mu2e experiment is constructing a calorimeter consisting of 1,348 undoped CsI crystals in two disks. Each crystal has a dimension of 34 x 34 x 200 mm, and is readout by a large area silicon PMT array. A series of technical specifications was defined according to physics requirements. Preproduction CsI crystals were procured from three firms: Amcrys, Saint-Gobain and Shanghai Institute of Ceramics. We report the quality assurance on crystal's scintillation properties and their radiation hardness against ionization dose and neutrons. With a fast decay time of 30 ns and a light output of more than 100 p.e./MeV measured with a bi-alkali PMT, undoped CsI crystals provide a cost-effective solution for the Mu2e experiment., Comment: 7 pages, 16 figures, published in IEEE TNS NS (2018)

Published
2018
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22. Design and status of the Mu2e crystal calorimeter

Author

Z. Usubov, G. Corradi, V. Glagolev, M. Ricci, R. Donghia, E. Pedreschi, T. S. Miyashita, S. Miscetti, F. Raffaelli, E. Diociaiuti, A. Saputi, M. Cordelli, G. F. Tassielli, Frank C. Porter, Luca Morescalchi, V. Baranov, F. Grancagnolo, S. Donati, S. Di Falco, Marco Martini, N. Atanov, J. Budagov, Ren-Yuan Zhu, D. G. Hitlin, S. Giovannella, V. Tereshchenko, Gianantonio Pezzullo, F. Spinella, F. Cervelli, I. Sarra, P. Murat, F. Happacher, Yu.I. Davydov, F. Colao, B. Echenard, Atanov, N., Baranov, V., Budagov, J., Davydov, Yu. I., Glagolev, V., Tereshchenko, V., Usubov, Z., Cervelli, F., Di Falco, S., Donati, S., Morescalchi, L., Pedreschi, E., Pezzullo, G., Raffaelli, F., Spinella, F., Colao, F., Cordelli, M., Corradi, G., Diociaiuti, E., Donghia, R., Giovannella, S., Happacher, F., Martini, M., Miscetti, S., Ricci, M., Saputi, A., Sarra, I., Echenard, B., Hitlin, D. G., Miyashita, T., Porter, F., Zhu, R. Y., Grancagnolo, F., Tassielli, G., and Murat, P.

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, FOS: Physical sciences, Solenoid, Electron, 7. Clean energy, 01 natural sciences, Particle identification, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Silicon photomultiplier, Crystal, 0103 physical sciences, Mu2e, Fermilab, Energy resolution, Electrical and Electronic Engineering, 010306 general physics, Nuclear and High Energy Physic, Physics, Muon, Calorimeter (particle physics), 010308 nuclear & particles physics, Detector, Instrumentation and Detectors (physics.ins-det), Meson, Cosmic ray, Nuclear Energy and Engineering, High Energy Physics::Experiment, Aluminum
Abstract

The Mu2e experiment at Fermilab searches for the charged-lepton flavour violating (CLFV) conversion of a negative muon into an electron in the field of an aluminum nucleus, with a distinctive signature of a mono-energetic electron of energy slightly below the muon rest mass (104.967 MeV). The Mu2e goal is to improve by four orders of magnitude the search sensitivity with respect to the previous experiments. Any observation of a CLFV signal will be a clear indication of new physics. The Mu2e detector is composed of a tracker, an electro- magnetic calorimeter and an external veto for cosmic rays surrounding the solenoid. The calorimeter plays an important role in providing particle identification capabilities, a fast online trigger filter, a seed for track reconstruction while working in vacuum, in the presence of 1 T axial magnetic field and in an harsh radiation environment. The calorimeter requirements are to provide a large acceptance for 100 MeV electrons and reach at these energies: (a) a time resolution better than 0.5 ns; (b) an energy resolution < 10% and (c) a position resolution of 1 cm. The calorimeter design consists of two disks, each one made of 674 undoped CsI crystals read by two large area arrays of UV-extended SiPMs. We report here the construction and test of the Module-0 prototype. The Module-0 has been exposed to an electron beam in the energy range around 100 MeV at the Beam Test Facility in Frascati. Preliminary results of timing and energy resolution at normal incidence are shown. A discussion of the technical aspects of the calorimeter engineering is also reported in this paper., 8 pages, 16 figures, submitted to IEEE

Published
2018
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23. Search for dark photon production at BaBar

Author

B. Echenard

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, Electron–positron annihilation, Detector, Dark matter, Astrophysics::Cosmology and Extragalactic Astrophysics, hidden sector, 01 natural sciences, dark matter, Dark photon, Vector boson, Standard Model, Nuclear physics, Hidden sector, dark photon, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract

We present a search for a dark photon, a new massive vector boson interacting weakly with Standard Model particles, using data collected with the BaBar detector. No statistically significant deviations from the Standard Model predictions are seen, and 90% confidence level upper limits on the mixing strength between the photon and dark photon are set at the level of 10−4–10−3 for dark photon masses in the range 0.02 – 10.2 GeV.

Published
2016
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24. 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

25. 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

26. 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

27. 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

28. 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

29. 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. Heß, 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. Röhrken, C. Hast, Ju-Young Kim, Crisostomo Sciacca, D. Aston, G. Rizzo, J. L. Ritchie, I. M. Peruzzi, C. Bünger, 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. Voß, L. Sun, O. Grünberg, 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

30. 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

31. Design and status of the Mu2e Calorimeter

Author

S. Donati, Gianantonio Pezzullo, G. Corradi, Luca Morescalchi, N. Atanov, S. Giovannella, Yu.I. Davydov, J. Budagov, F. Raffaelli, V. Glagolev, S. Miscetti, A. Saputi, S. Di Falco, M. Martini, F. Cervelli, I. Sarra, M. Cordelli, F. Happacher, G. F. Tassielli, E. Diociaiuti, F. Colao, E. Pedreschi, B. Echenard, F. Grancagnolo, D. G. Hitlin, F. Spinella, R. Donghia, V. Tereshchenko, Ren-Yuan Zhu, Z. Usubov, M. Ricci, T. S. Miyashita, P. Murat, F. C. Porter, V. A. Baranov, Atanov, N., Baranov, V., Budagov, J., Davydov, Y. I., Glagolev, V., Tereshchenko, V., Usubov, Z., Cervelli, F., Falco, S. D., Donati, S., Morescalchi, L., Pedreschi, E., Pezzullo, G., Raffaelli, F., Spinella, F., Colao, F., Cordelli, M., Corradi, G., Diociaiuti, E., Donghia, R., Giovannella, S., Happacher, F., Martini, M., Miscetti, S., Ricci, M., Saputi, A., Sarra, I., Echenard, B., Hitlin, D. G., Miyashita, T., Porter, F., Zhu, R. Y., Grancagnolo, F., Tassielli, G., and Murat, P.

Subjects
Range (particle radiation), Materials science, Calorimeter (particle physics), Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, Radiation, 01 natural sciences, Optics, Silicon photomultiplier, 0103 physical sciences, Mu2e, Cathode ray, Calibration, business, 010303 astronomy & astrophysics, Beam (structure)
Abstract

The Mu2e calorimeter is composed by $\sim 1400$ un- doped CsI crystals coupled to large area UV extended Silicon Photomultipliers(SIPMs) arranged intwo annular disks. This calorimeter has to provide precise information on energy, timing and position resolution. It should also be fast enough towithstand the high rate background and it mustoperate and survive in a high radiation environment. All steps done for the construction and test of the Module -0 prototype, that is an array of51 pre-production crystals, are reported. The Module -0 was exposed to an electron beam in the energy range around 100 MeV at the BTF (Beam Test Facility) inFrascati. Preliminary results of timing and energy resolution at normal incidence are shown.

Published
2017
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32. Measurement of the atmospheric muon spectrum from 20 to 3000 GeV

Author

P. Achard, O. Adriani, M. Aguilar-Benitez, M. van den Akker, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, M.G. Alviggi, H. Anderhub, V.P. Andreev, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, A. Bajo, G. Baksay, L. Baksay, J. Bähr, S.V. Baldew, S. Banerjee, Sw. Banerjee, A. Barczyk, R. Barillère, P. Bartalini, M. Basile, N. Batalova, R. Battiston, A. Bay, F. Becattini, U. Becker, F. Behner, L. Bellucci, R. Berbeco, J. Berdugo, P. Berges, B. Bertucci, B.L. Betev, M. Biasini, M. Biglietti, A. Biland, J.J. Blaising, S.C. Blyth, G.J. Bobbink, A. Böhm, L. Boldizsar, B. Borgia, S. Bottai, D. Bourilkov, M. Bourquin, S. Braccini, J.G. Branson, F. Brochu, J.D. Burger, W.J. Burger, X.D. Cai, M. Capell, G. Cara Romeo, G. Carlino, A. Cartacci, J. Casaus, F. Cavallari, N. Cavallo, C. Cecchi, M. Cerrada, M. Chamizo, T. Chiarusi, Y.H. Chang, M. Chemarin, A. Chen, G. Chen, G.M. Chen, H.F. Chen, H.S. Chen, G. Chiefari, L. Cifarelli, F. Cindolo, I. Clare, R. Clare, G. Coignet, N. Colino, S. Costantini, B. de la Cruz, S. Cucciarelli, J.A. van Dalen, R. de Asmundis, P. Déglon, J. Debreczeni, A. Degré, K. Dehmelt, K. Deiters, D. della Volpe, E. Delmeire, P. Denes, F. DeNotaristefani, A. De Salvo, M. Diemoz, M. Dierckxsens, L.K. Ding, C. Dionisi, M. Dittmar, A. Doria, M.T. Dova, D. Duchesneau, M. Duda, I. Duran, B. Echenard, A. Eline, A. El Hage, H. El Mamouni, A. Engler, F.J. Eppling, P. Extermann, G. Faber, M.A. Falagan, S. Falciano, A. Favara, J. Fay, O. Fedin, M. Felcini, T. Ferguson, H. Fesefeldt, E. Fiandrini, J.H. Field, F. Filthaut, W. Fisher, I. Fisk, G. Forconi, K. Freudenreich, C. Furetta, Yu. Galaktionov, S.N. Ganguli, P. Garcia-Abia, M. Gataullin, S. Gentile, S. Giagu, Z.F. Gong, H.J. Grabosch, G. Grenier, O. Grimm, H. Groenstege, M.W. Gruenewald, M. Guida, Y.N. Guo, S. Gupta, V.K. Gupta, A. Gurtu, L.J. Gutay, D. Haas, Ch. Haller, D. Hatzifotiadou, Y. Hayashi, Z.X. He, T. Hebbeker, A. Hervé, J. Hirschfelder, H. Hofer, M. Hohlmann, G. Holzner, S.R. Hou, A.X. Huo, Y. Hu, N. Ito, B.N. Jin, C.L. Jing, L.W. Jones, P. de Jong, I. Josa-Mutuberría, V. Kantserov, M. Kaur, S. Kawakami, M.N. Kienzle-Focacci, J.K. Kim, J. Kirkby, W. Kittel, A. Klimentov, A.C. König, E. Kok, A. Korn, M. Kopal, V. Koutsenko, M. Kräber, H.H. Kuang, R.W. Kraemer, A. Krüger, J. Kuijpers, A. Kunin, P. Ladron de Guevara, I. Laktineh, G. Landi, M. Lebeau, A. Lebedev, P. Lebrun, P. Lecomte, P. Lecoq, P. Le Coultre, J.M. Le Goff, Y. Lei, H. Leich, R. Leiste, M. Levtchenko, P. Levtchenko, C. Li, L. Li, Z.C. Li, S. Likhoded, C.H. Lin, W.T. Lin, F.L. Linde, L. Lista, Z.A. Liu, W. Lohmann, E. Longo, Y.S. Lu, C. Luci, L. Luminari, W. Lustermann, W.G. Ma, X.H. Ma, Y.Q. Ma, L. Malgeri, A. Malinin, C. Maña, J. Mans, J.P. Martin, F. Marzano, K. Mazumdar, R.R. McNeil, S. Mele, X.W. Meng, L. Merola, M. Meschini, W.J. Metzger, A. Mihul, A. van Mil, H. Milcent, G. Mirabelli, J. Mnich, G.B. Mohanty, B. Monteleoni, G.S. Muanza, A.J.M. Muijs, B. Musicar, M. Musy, S. Nagy, R. 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Subjects
Nuclear and High Energy Physics, Particle physics, L3,CERN-LEP-L3, Physics::Instrumentation and Detectors, Ciencias Físicas, Astrophysics::High Energy Astrophysical Phenomena, momentum spectrum, FOS: Physical sciences, Cosmic ray, ddc:500.2, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, purl.org/becyt/ford/1 [https], Momentum, Nuclear physics, Atmospheric muon spectrum, High Energy Physics - Experiment (hep-ex), Muon spectrometer, muon, l3, cern lab, cosmic radiation, angular dependence, magnetic detector, 0103 physical sciences, Vertical direction, Nuclear Experiment, 010306 general physics, Cosmic rays, High-energy hadronic interactions, Zenith, Physics, Muon, 010308 nuclear & particles physics, Física, purl.org/becyt/ford/1.3 [https], Astronomía, Pair production, Muon flux, Physics::Accelerator Physics, High Energy Physics::Experiment, CIENCIAS NATURALES Y EXACTAS, Particle Physics - Experiment, FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
Abstract

The absolute muon flux between 20 and 3000 GeV is measured with the L3 magnetic muon spectrometer for zenith angles ranging from 0°to 58°. Due to the large exposure of about 150 m2sr d, and the excellent momentum resolution of the L3 muon chambers, a precision of 2.3% at 150 GeV in the vertical direction is achieved.The ratio of positive to negative muons is studied between 20 and 500 GeV, and the average vertical muon charge ratio is found to be 1.285±0.003(stat.)±0.019(syst.)., Physics Letters B, 598 (1-2), ISSN:0370-2693, ISSN:0031-9163, ISSN:1873-2445

Published
2004

33. Measurement of the Z-boson mass using e+e -> Z gamma events at centre-of-mass energies above the Z pole

Author

P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, M.G. Alviggi, H. Anderhub, V.P. Andreev, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, A. Bajo, G. Baksay, L. Baksay, S.V. Baldew, S. Banerjee, Sw. Banerjee, A. Barczyk, R. Barillère, P. Bartalini, M. Basile, N. Batalova, R. Battiston, A. Bay, F. Becattini, U. Becker, F. Behner, L. Bellucci, R. Berbeco, J. Berdugo, P. Berges, B. Bertucci, B.L. Betev, M. Biasini, M. Biglietti, A. Biland, J.J. Blaising, S.C. Blyth, G.J. Bobbink, A. Böhm, L. Boldizsar, B. Borgia, S. Bottai, D. Bourilkov, M. Bourquin, S. Braccini, J.G. Branson, F. Brochu, J.D. Burger, W.J. Burger, X.D. Cai, M. Capell, G. Cara Romeo, G. Carlino, A. Cartacci, J. Casaus, F. Cavallari, N. Cavallo, C. Cecchi, M. Cerrada, M. Chamizo, Y.H. Chang, M. Chemarin, A. Chen, G. Chen, G.M. Chen, H.F. Chen, H.S. Chen, G. Chiefari, L. Cifarelli, F. Cindolo, I. Clare, R. Clare, G. Coignet, N. Colino, S. Costantini, B. de la Cruz, S. Cucciarelli, J.A. van Dalen, R. de Asmundis, P. Déglon, J. Debreczeni, A. Degré, K. Dehmelt, K. Deiters, D. della Volpe, E. Delmeire, P. Denes, F. DeNotaristefani, A. De Salvo, M. Diemoz, M. Dierckxsens, C. Dionisi, M. Dittmar, A. Doria, M.T. Dova, D. Duchesneau, M. Duda, B. Echenard, A. Eline, A. El Hage, H. El Mamouni, A. Engler, F.J. Eppling, P. Extermann, M.A. Falagan, S. Falciano, A. Favara, J. Fay, O. Fedin, M. Felcini, T. Ferguson, H. Fesefeldt, E. Fiandrini, J.H. Field, F. Filthaut, P.H. Fisher, W. Fisher, I. Fisk, G. Forconi, K. Freudenreich, C. Furetta, Yu. Galaktionov, S.N. Ganguli, P. Garcia-Abia, M. Gataullin, S. Gentile, S. Giagu, Z.F. Gong, G. Grenier, O. Grimm, M.W. Gruenewald, M. Guida, R. van Gulik, V.K. Gupta, A. Gurtu, L.J. Gutay, D. Haas, D. Hatzifotiadou, T. Hebbeker, A. Hervé, J. Hirschfelder, H. Hofer, M. Hohlmann, G. Holzner, S.R. Hou, Y. Hu, B.N. Jin, L.W. Jones, P. de Jong, I. Josa-Mutuberrı́a, D. Käfer, M. Kaur, M.N. Kienzle-Focacci, J.K. Kim, J. Kirkby, W. Kittel, A. Klimentov, A.C. König, M. Kopal, V. Koutsenko, M. Kräber, R.W. Kraemer, A. Krüger, A. Kunin, P. Ladron de Guevara, I. Laktineh, G. Landi, M. Lebeau, A. Lebedev, P. Lebrun, P. Lecomte, P. Lecoq, P. Le Coultre, J.M. Le Goff, R. Leiste, M. Levtchenko, P. Levtchenko, C. Li, S. Likhoded, C.H. Lin, W.T. Lin, F.L. Linde, L. Lista, Z.A. Liu, W. Lohmann, E. Longo, Y.S. Lu, C. Luci, L. Luminari, W. Lustermann, W.G. Ma, L. Malgeri, A. Malinin, C. Maña, J. Mans, J.P. Martin, F. Marzano, K. Mazumdar, R.R. McNeil, S. Mele, L. Merola, M. Meschini, W.J. Metzger, A. Mihul, H. Milcent, G. Mirabelli, J. Mnich, G.B. Mohanty, G.S. Muanza, A.J.M. Muijs, B. Musicar, M. Musy, S. Nagy, S. Natale, M. Napolitano, F. Nessi-Tedaldi, H. Newman, A. Nisati, T. Novak, H. Nowak, R. Ofierzynski, G. Organtini, I. Pal, C. Palomares, P. Paolucci, R. Paramatti, G. Passaleva, S. Patricelli, T. Paul, M. Pauluzzi, C. Paus, F. Pauss, M. Pedace, S. Pensotti, D. Perret-Gallix, B. Petersen, D. Piccolo, F. Pierella, M. Pioppi, P.A. Piroué, E. Pistolesi, V. Plyaskin, M. Pohl, V. Pojidaev, J. Pothier, D. Prokofiev, J. Quartieri, G. Rahal-Callot, M.A. Rahaman, P. Raics, N. Raja, R. Ramelli, P.G. Rancoita, R. Ranieri, A. Raspereza, P. Razis, D. Ren, M. Rescigno, S. Reucroft, S. Riemann, K. Riles, B.P. Roe, L. Romero, A. Rosca, S. Rosier-Lees, S. Roth, C. Rosenbleck, J.A. Rubio, G. Ruggiero, H. Rykaczewski, A. Sakharov, S. Saremi, S. Sarkar, J. Salicio, E. Sanchez, C. Schäfer, V. Schegelsky, H. Schopper, D.J. Schotanus, C. Sciacca, L. Servoli, S. Shevchenko, N. Shivarov, V. Shoutko, E. Shumilov, A. Shvorob, D. Son, C. Souga, P. Spillantini, M. Steuer, D.P. Stickland, B. Stoyanov, A. Straessner, K. Sudhakar, G. Sultanov, L.Z. Sun, S. Sushkov, H. Suter, J.D. Swain, Z. Szillasi, X.W. Tang, P. Tarjan, L. Tauscher, L. Taylor, B. Tellili, D. Teyssier, C. Timmermans, Samuel C.C. Ting, S.M. Ting, S.C. Tonwar, J. Tóth, C. Tully, K.L. Tung, J. Ulbricht, E. Valente, R.T. Van de Walle, R. Vasquez, V. Veszpremi, G. Vesztergombi, I. Vetlitsky, D. Vicinanza, G. Viertel, S. Villa, M. Vivargent, S. Vlachos, I. Vodopianov, H. Vogel, H. Vogt, I. Vorobiev, A.A. Vorobyov, M. Wadhwa, Q. Wang, X.L. Wang, Z.M. Wang, M. Weber, P. Wienemann, H. Wilkens, S. Wynhoff, L. Xia, Z.Z. Xu, J. Yamamoto, B.Z. Yang, C.G. Yang, H.J. Yang, M. Yang, S.C. Yeh, An. Zalite, Yu. Zalite, Z.P. Zhang, J. Zhao, G.Y. Zhu, R.Y. Zhu, H.L. Zhuang, A. Zichichi, B. Zimmermann, M. Zöller, Achard, Pablo, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Delmeire, Evelyne, Echenard, Bertrand, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Malgeri, Luca, Natale, Sonia, Pohl, Martin, Straessner, Arno, L3 (IHEF, IoP, FNWI), P. ACHARD, O. ADRIANI, M. AGUILAR-BENITEZ, J. ALCARAZ, G. ALEMANNI, J. ALLABY, A. ALOISIO, M.G. ALVIGGI, H. ANDERHUB, V.P. ANDREEV, F. ANSELMO, A. AREFIEV, T. AZEMOON, T. AZIZ, P. BAGNAIA, A. BAJO, G. BAKSAY, L. BAKSAY, S.V. BALDEW, S. BANERJEE, SW. BANERJEE, A. BARCZYK, R. BARILLÈRE, P. BARTALINI, M. BASILE, N. BATALOVA, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, L. BELLUCCI, R. BERBECO, J. BERDUGO, P. BERGES, B. BERTUCCI, B.L. BETEV, M. BIASINI, M. BIGLIETTI, A. BILAND, J.J. BLAISING, S.C. BLYTH, G.J. BOBBINK, A. BÖHM, L. BOLDIZSAR, B. BORGIA, S. BOTTAI, D. BOURILKOV, M. BOURQUIN, S. BRACCINI, J.G. BRANSON, F. BROCHU, J.D. BURGER, W.J. BURGER, X.D. CAI, M. CAPELL, G. CARA ROMEO, G. CARLINO, A. CARTACCI, J. CASAUS, F. CAVALLARI, N. CAVALLO, C. CECCHI, M. CERRADA, M. CHAMIZO, Y.H. CHANG, M. CHEMARIN, A. CHEN, G. CHEN, G.M. CHEN, H.F. CHEN, H.S. CHEN, G. CHIEFARI, L. CIFARELLI, F. CINDOLO, I. CLARE, R. CLARE, G. COIGNET, N. COLINO, S. COSTANTINI, B. DE LA CRUZ, S. CUCCIARELLI, J.A. VAN DALEN, R. DE ASMUNDIS, P. DÉGLON, J. DEBRECZENI, A. DEGRÉ, K. DEHMELT, K. DEITERS, D. DELLA VOLPE, E. DELMEIRE, P. DENES, F. DE NOTARISTEFANI, A. DE SALVO, M. DIEMOZ, M. DIERCKXSENS, C. DIONISI, M. DITTMAR, A. DORIA, M.T. DOVA, D. DUCHESNEAU, M. DUDA, B. ECHENARD, A. ELINE, A. EL HAGE, H. EL MAMOUNI, A. ENGLER, F.J. EPPLING, P. EXTERMANN, M.A. FALAGAN, S. FALCIANO, A. FAVARA, J. FAY, O. FEDIN, M. FELCINI, T. FERGUSON, H. FESEFELDT, E. FIANDRINI, J.H. FIELD, F. FILTHAUT, P.H. FISHER, W. FISHER, I. FISK, G. FORCONI, K. FREUDENREICH, C. FURETTA, YU. GALAKTIONOV, S.N. GANGULI, P. GARCIA-ABIA, M. GATAULLIN, S. GENTILE, S. GIAGU, Z.F. GONG, G. GRENIER, O. GRIMM, M.W. GRUENEWALD, M. GUIDA, V.K. GUPTA, A. GURTU, L.J. GUTAY, D. HAAS, D. HATZIFOTIADOU, T. HEBBEKER, A. HERVÉ, J. HIRSCHFELDER, H. HOFER, M. HOHLMANN, G. HOLZNER, S.R. HOU, Y. HU, B.N. JIN, L.W. JONES, P. DE JONG, I. JOSA-MUTUBERRÍA, M. KAUR, M.N. KIENZLE-FOCACCI, J.K. KIM, J. KIRKBY, W. KITTEL, A. KLIMENTOV, A.C. KOENIG, M. KOPAL, V. KOUTSENKO, M. KRAEBER, R.W. KRAEMER, A. KRUEGER, A. KUNIN, P. LADRON DE GUEVARA, I. LAKTINEH, G. LANDI, M. LEBEAU, A. LEBEDEV, P. LEBRUN, P. LECOMTE, P. LECOQ, P. LE COULTRE, J.M. LE GOFF, R. LEISTE, M. LEVTCHENKO, P. LEVTCHENKO, C. LI, S. LIKHODED, C.H. LIN, W.T. LIN, F.L. LINDE, L. LISTA, Z.A. LIU, W. LOHMANN, E. LONGO, Y.S. LU, C. LUCI, L. LUMINARI, W. LUSTERMANN, W.G. MA, L. MALGERI, A. MALININ, C. MANA, D. MANGEOL, J. MANS, J.P. MARTIN, F. MARZANO, K. MAZUMDAR, RR. MCNEIL, S. MELE, L. MEROLA, M. MESCHINI, W.J. METZGER, A. MIHUL, H. MILCENT, G. MIRABELLI, J. MNICH, G.B. MOHANTY, G.S. MUANZA, A.J.M. MUIJS, B. MUSICAR, M. MUSY, S. NAGY, S. NATALE, M. NAPOLITANO, F. NESSI-TEDALDI, H. NEWMAN, A. NISATI, T. NOVAK, H. NOWAK, R. OFIERZYNSKI, G. ORGANTINI, I. PAL, C. PALOMARES, P.PAOLUCCI, R. PARAMATTI, G. PASSALEVA, S. PATRICELLI, T. PAUL, M. PAULUZZI, C. PAUS, F. PAUSS, M. PEDACE, S. PENSOTTI, D. PERRET-GALLIX, B. PETERSEN, D. PICCOLO, F. PIERELLA, M. PIOPPI, P.A. PIROUE, E. PISTOLESI, V. PLYASKIN, M. POHL, V. POJIDAEV, J. POTHIER, D. PROKOFIEV, J. QUARTIERI, G. RAHAL-CALLOT, M.A.RAHAMAN, P. RAICS, N. RAJA, R. RAMELLI, P.G. RANCOITA, R. RANIERI, A. RASPEREZA, P. RAZIS, D. REN, M. RESCIGNO, S. REUCROFT, S. RIEMANN, K. RILES, B.P. ROE, L. ROMERO, A. ROSCA, C. ROSEMANN, C. ROSENBLECK, S. ROSIER-LEES, S. ROTH, J.A. RUBIO, G. RUGGIERO, H. RYKACZEWSKI, A. SAKHAROV, S. SAREMI, S. SARKAR, J. SALICIO, E. SANCHEZ, C. SCHAEFER, V. SCHEGELSKY, H. SCHOPPER, D.J. SCHOTANUS, C. SCIACCA, L. SERVOLI, S. SHEVCHENKO, N. SHIVAROV, V. SHOUTKO, E. SHUMILOV, A. SHVOROB, D. SON, C. SOUGA, P. SPILLANTINI, M. STEUER, D.P. STICKLAND, B. STOYANOV, A. STRAESSNER, K. SUDHAKAR, G. SULTANOV, L.Z. SUN, S. SUSHKOV, H. SUTER, J.D. SWAIN, Z. SZILLASI, X.W. TANG, P. TARJAN, L. TAUSCHER, L. TAYLOR, B. TELLILI, D. TEYSSIER, C. TIMMERMANS, SAMUEL C.C. TING, S.M. TING, S.C. TONWAR, J. TOTH, C. TULLY, K.L. TUNG, J. ULBRICHT, E. VALENTE, R.T. VAN DE WALLE, R. VASQUEZ, V. VESZPREMI, G. VESZTERGOMBI, I. VETLITSKI, D. VICINANZA, G. VIERTEL, S. VILLA, M. VIVARGENT, S. VLACHOS, I. VODOPIANOV, H. VOGEL, H. VOGT, I. VOROBIEV, A.A. VOROBYOV, M. WADHWA, Q. WANG, X.L. WANG, Z.M. WANG, M. WEBER, H. WILKENS, S. WYNHOFF, L. XIA, Z.Z. XU, J. YAMAMOTO, B.Z. YANG, C.G. YANG, H.J. YANG, M. YANG, S.C. YEH, AN. ZALITE, YU. ZALITE, Z.P. ZHANG, J. ZHAO, G.Y. ZHU, R.Y. ZHU, H.L. ZHUANG, A. ZICHICHI, B. ZIMMERMANN, M. ZOELLER, IHEF (IoP, FNWI), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, Aloisio, Alberto, Alviggi, Mariagrazia, Chiefari, Giovanni, DELLA VOLPE, Domenico, Merola, Leonardo, Napolitano, Marco, Patricelli, Sergio, Sciacca, Crisostomo, and Lista, Luca

Subjects
Nuclear and High Energy Physics, Particle physics, Z boson, Hadron, ddc:500.2, Radiation, 01 natural sciences, Measure (mathematics), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Ciencias Exactas, L3 EXPERIMENT, Physics, Muon, 010308 nuclear & particles physics, Z pole, Resonance, Física, centre-of-mass energies, Z-boson, monte-carlo program, cross-sections, l3 experiment, final-states, qcd, lep, photoproduction, simulation, collisions, parameters, High Energy Physics::Experiment, Beam energy
Abstract

Events from the e+e− → Zγ process with hard initial-state radiation collected with the L3 detector at centre-of-mass energies between 183 and 209 GeV are used to measure the mass of the Z boson. Decays of the Z boson into hadrons or muon pairs are considered and the Z mass is determined to be 91.272 ± 0.032(stat) ± 0.033(syst) GeV, in agreement with the value measured at the Z resonance. Alternatively, assuming this measured value of the Z mass, the method determines the LEP centre-of-mass energy, found to be 175 ± 68(stat) ± 68(syst) MeV lower than the nominal value., Facultad de Ciencias Exactas

Published
2004

34. Search for color singlet and color reconnection effects in hadronic Z decays at LEP

Author

P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, M.G. Alviggi, H. Anderhub, V.P. Andreev, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, A. Bajo, G. Baksay, L. Baksay, S.V. Baldew, S. Banerjee, Sw. Banerjee, A. Barczyk, R. Barillère, P. Bartalini, M. Basile, N. Batalova, R. Battiston, A. Bay, F. Becattini, U. Becker, F. Behner, L. Bellucci, R. Berbeco, J. Berdugo, P. Berges, B. Bertucci, B.L. Betev, M. Biasini, M. Biglietti, A. Biland, J.J. Blaising, S.C. Blyth, G.J. Bobbink, A. Böhm, L. Boldizsar, B. Borgia, S. Bottai, D. Bourilkov, M. Bourquin, S. Braccini, J.G. Branson, F. Brochu, J.D. Burger, W.J. Burger, X.D. Cai, M. Capell, G. Cara Romeo, G. Carlino, A. Cartacci, J. Casaus, F. Cavallari, N. Cavallo, C. Cecchi, M. Cerrada, M. Chamizo, Y.H. Chang, M. Chemarin, A. Chen, G. Chen, G.M. Chen, H.F. Chen, H.S. Chen, G. Chiefari, L. Cifarelli, F. Cindolo, I. Clare, R. Clare, G. Coignet, N. Colino, S. Costantini, B. de la Cruz, S. Cucciarelli, J.A. van Dalen, R. de Asmundis, P. Déglon, J. Debreczeni, A. Degré, K. Dehmelt, K. Deiters, D. della Volpe, E. Delmeire, P. Denes, F. DeNotaristefani, A. De Salvo, M. Diemoz, M. Dierckxsens, C. Dionisi, M. Dittmar, A. Doria, M.T. Dova, D. Duchesneau, M. Duda, B. Echenard, A. Eline, A. El Hage, H. El Mamouni, A. Engler, F.J. Eppling, P. Extermann, M.A. Falagan, S. Falciano, A. Favara, J. Fay, O. Fedin, M. Felcini, T. Ferguson, H. Fesefeldt, E. Fiandrini, J.H. Field, F. Filthaut, P.H. Fisher, W. Fisher, I. Fisk, G. Forconi, K. Freudenreich, C. Furetta, Yu. Galaktionov, S.N. Ganguli, P. Garcia-Abia, M. Gataullin, S. Gentile, S. Giagu, Z.F. Gong, G. Grenier, O. Grimm, M.W. Gruenewald, M. Guida, R. van Gulik, V.K. Gupta, A. Gurtu, L.J. Gutay, D. Haas, D. Hatzifotiadou, T. Hebbeker, A. Hervé, J. Hirschfelder, H. Hofer, M. Hohlmann, G. Holzner, S.R. Hou, Y. Hu, B.N. Jin, L.W. Jones, P. de Jong, I. Josa-Mutuberrı́a, D. Käfer, M. Kaur, M.N. Kienzle-Focacci, J.K. Kim, J. Kirkby, W. Kittel, A. Klimentov, A.C. König, M. Kopal, V. Koutsenko, M. Kräber, R.W. Kraemer, A. Krüger, A. Kunin, P. Ladron de Guevara, I. Laktineh, G. Landi, M. Lebeau, A. Lebedev, P. Lebrun, P. Lecomte, P. Lecoq, P. Le Coultre, J.M. Le Goff, R. Leiste, M. Levtchenko, P. Levtchenko, C. Li, S. Likhoded, C.H. Lin, W.T. Lin, F.L. Linde, L. Lista, Z.A. Liu, W. Lohmann, E. Longo, Y.S. Lu, C. Luci, L. Luminari, W. Lustermann, W.G. Ma, L. Malgeri, A. Malinin, C. Maña, J. Mans, J.P. Martin, F. Marzano, K. Mazumdar, R.R. McNeil, S. Mele, L. Merola, M. Meschini, W.J. Metzger, A. Mihul, H. Milcent, G. Mirabelli, J. Mnich, G.B. Mohanty, G.S. Muanza, A.J.M. Muijs, B. Musicar, M. Musy, S. Nagy, S. Natale, M. Napolitano, F. Nessi-Tedaldi, H. Newman, A. Nisati, T. Novak, H. Nowak, R. Ofierzynski, G. Organtini, I. Pal, C. Palomares, P. Paolucci, R. Paramatti, G. Passaleva, S. Patricelli, T. Paul, M. Pauluzzi, C. Paus, F. Pauss, M. Pedace, S. Pensotti, D. Perret-Gallix, B. Petersen, D. Piccolo, F. Pierella, M. Pioppi, P.A. Piroué, E. Pistolesi, V. Plyaskin, M. Pohl, V. Pojidaev, J. Pothier, D. Prokofiev, J. Quartieri, G. Rahal-Callot, M.A. Rahaman, P. Raics, N. Raja, R. Ramelli, P.G. Rancoita, R. Ranieri, A. Raspereza, P. Razis, D. Ren, M. Rescigno, S. Reucroft, S. Riemann, K. Riles, B.P. Roe, L. Romero, A. Rosca, S. Rosier-Lees, S. Roth, C. Rosenbleck, J.A. Rubio, G. Ruggiero, H. Rykaczewski, A. Sakharov, S. Saremi, S. Sarkar, J. Salicio, E. Sanchez, C. Schäfer, V. Schegelsky, H. Schopper, D.J. Schotanus, C. Sciacca, L. Servoli, S. Shevchenko, N. Shivarov, V. Shoutko, E. Shumilov, A. Shvorob, D. Son, C. Souga, P. Spillantini, M. Steuer, D.P. Stickland, B. Stoyanov, A. Straessner, K. Sudhakar, G. Sultanov, L.Z. Sun, S. Sushkov, H. Suter, J.D. Swain, Z. Szillasi, X.W. Tang, P. Tarjan, L. Tauscher, L. Taylor, B. Tellili, D. Teyssier, C. Timmermans, Samuel C.C. Ting, S.M. Ting, S.C. Tonwar, J. Tóth, C. Tully, K.L. Tung, J. Ulbricht, E. Valente, R.T. Van de Walle, R. Vasquez, V. Veszpremi, G. Vesztergombi, I. Vetlitsky, D. Vicinanza, G. Viertel, S. Villa, M. Vivargent, S. Vlachos, I. Vodopianov, H. Vogel, H. Vogt, I. Vorobiev, A.A. Vorobyov, M. Wadhwa, Q. Wang, X.L. Wang, Z.M. Wang, M. Weber, P. Wienemann, H. Wilkens, S. Wynhoff, L. Xia, Z.Z. Xu, J. Yamamoto, B.Z. Yang, C.G. Yang, H.J. Yang, M. Yang, S.C. Yeh, An. Zalite, Yu. Zalite, Z.P. Zhang, J. Zhao, G.Y. Zhu, R.Y. Zhu, H.L. Zhuang, A. Zichichi, B. Zimmermann, M. Zöller, Achard, Pablo, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Delmeire, Evelyne, Echenard, Bertrand, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Malgeri, Luca, Natale, Sonia, Pohl, Martin, Straessner, Arno, P., Achard, Aloisio, Alberto, Alviggi, Mariagrazia, Chiefari, Giovanni, DELLA VOLPE, Domenico, Merola, Leonardo, Napolitano, Marco, Patricelli, Sergio, Sciacca, Crisostomo, Lista, Luca, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), L3, L3 (IHEF, IoP, FNWI), P. ACHARD, O. ADRIANI, M. AGUILAR-BENITEZ, J. ALCARAZ, G. ALEMANNI, J. ALLABY, A. ALOISIO, M.G. ALVIGGI, H. ANDERHUB, V.P. ANDREEV, F. ANSELMO, A. AREFIEV, T. AZEMOON, T. AZIZ, P. BAGNAIA, A. BAJO, G. BAKSAY, L. BAKSAY, S.V. BALDEW, S. BANERJEE, SW. BANERJEE, A. BARCZYK, R. BARILLÈRE, P. BARTALINI, M. BASILE, N. BATALOVA, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, L. BELLUCCI, R. BERBECO, J. BERDUGO, P. BERGES, B. BERTUCCI, B.L. BETEV, M. BIASINI, M. BIGLIETTI, A. BILAND, J.J. BLAISING, S.C. BLYTH, G.J. BOBBINK, A. BÖHM, L. BOLDIZSAR, B. BORGIA, S. BOTTAI, D. BOURILKOV, M. BOURQUIN, S. BRACCINI, J.G. BRANSON, F. BROCHU, J.D. BURGER, W.J. BURGER, X.D. CAI, M. CAPELL, G. CARA ROMEO, G. CARLINO, A. CARTACCI, J. CASAUS, F. CAVALLARI, N. CAVALLO, C. CECCHI, M. CERRADA, M. CHAMIZO, Y.H. CHANG, M. CHEMARIN, A. CHEN, G. CHEN, G.M. CHEN, H.F. CHEN, H.S. CHEN, G. CHIEFARI, L. CIFARELLI, F. CINDOLO, I. CLARE, R. CLARE, G. COIGNET, N. COLINO, S. COSTANTINI, B. DE LA CRUZ, S. CUCCIARELLI, J.A. VAN DALEN, R. DE ASMUNDIS, P. DÉGLON, J. DEBRECZENI, A. DEGRÉ, K. DEHMELT, K. DEITERS, D. DELLA VOLPE, E. DELMEIRE, P. DENES, F. DE NOTARISTEFANI, A. DE SALVO, M. DIEMOZ, M. DIERCKXSENS, C. DIONISI, M. DITTMAR, A. DORIA, M.T. DOVA, D. DUCHESNEAU, M. DUDA, B. ECHENARD, A. ELINE, A. EL HAGE, H. EL MAMOUNI, A. ENGLER, F.J. EPPLING, P. EXTERMANN, M.A. FALAGAN, S. FALCIANO, A. FAVARA, J. FAY, O. FEDIN, M. FELCINI, T. FERGUSON, H. FESEFELDT, E. FIANDRINI, J.H. FIELD, F. FILTHAUT, P.H. FISHER, W. FISHER, I. FISK, G. FORCONI, K. FREUDENREICH, C. FURETTA, YU. GALAKTIONOV, S.N. GANGULI, P. GARCIA-ABIA, M. GATAULLIN, S. GENTILE, S. GIAGU, Z.F. GONG, G. GRENIER, O. GRIMM, M.W. GRUENEWALD, M. GUIDA, V.K. GUPTA, A. GURTU, L.J. GUTAY, D. HAAS, D. HATZIFOTIADOU, T. HEBBEKER, A. HERVÉ, J. HIRSCHFELDER, H. HOFER, M. HOHLMANN, G. HOLZNER, S.R. HOU, Y. HU, B.N. JIN, L.W. JONES, P. DE JONG, I. JOSA-MUTUBERRÍA, M. KAUR, M.N. KIENZLE-FOCACCI, J.K. KIM, J. KIRKBY, W. KITTEL, A. KLIMENTOV, A.C. KOENIG, M. KOPAL, V. KOUTSENKO, M. KRAEBER, R.W. KRAEMER, A. KRUEGER, A. KUNIN, P. LADRON DE GUEVARA, I. LAKTINEH, G. LANDI, M. LEBEAU, A. LEBEDEV, P. LEBRUN, P. LECOMTE, P. LECOQ, P. LE COULTRE, J.M. LE GOFF, R. LEISTE, M. LEVTCHENKO, P. LEVTCHENKO, C. LI, S. LIKHODED, C.H. LIN, W.T. LIN, F.L. LINDE, L. LISTA, Z.A. LIU, W. LOHMANN, E. LONGO, Y.S. LU, C. LUCI, L. LUMINARI, W. LUSTERMANN, W.G. MA, L. MALGERI, A. MALININ, C. MANA, D. MANGEOL, J. MANS, J.P. MARTIN, F. MARZANO, K. MAZUMDAR, RR. MCNEIL, S. MELE, L. MEROLA, M. MESCHINI, W.J. METZGER, A. MIHUL, H. MILCENT, G. MIRABELLI, J. MNICH, G.B. MOHANTY, G.S. MUANZA, A.J.M. MUIJS, B. MUSICAR, M. MUSY, S. NAGY, S. NATALE, M. NAPOLITANO, F. NESSI-TEDALDI, H. NEWMAN, A. NISATI, T. NOVAK, H. NOWAK, R. OFIERZYNSKI, G. ORGANTINI, I. PAL, C. PALOMARES, P.PAOLUCCI, R. PARAMATTI, G. PASSALEVA, S. PATRICELLI, T. PAUL, M. PAULUZZI, C. PAUS, F. PAUSS, M. PEDACE, S. PENSOTTI, D. PERRET-GALLIX, B. PETERSEN, D. PICCOLO, F. PIERELLA, M. PIOPPI, P.A. PIROUE, E. PISTOLESI, V. PLYASKIN, M. POHL, V. POJIDAEV, J. POTHIER, D. PROKOFIEV, J. QUARTIERI, G. RAHAL-CALLOT, M.A.RAHAMAN, P. RAICS, N. RAJA, R. RAMELLI, P.G. RANCOITA, R. RANIERI, A. RASPEREZA, P. RAZIS, D. REN, M. RESCIGNO, S. REUCROFT, S. RIEMANN, K. RILES, B.P. ROE, L. ROMERO, A. ROSCA, C. ROSEMANN, C. ROSENBLECK, S. ROSIER-LEES, S. ROTH, J.A. RUBIO, G. RUGGIERO, H. RYKACZEWSKI, A. SAKHAROV, S. SAREMI, S. SARKAR, J. SALICIO, E. SANCHEZ, C. SCHAEFER, V. SCHEGELSKY, H. SCHOPPER, D.J. SCHOTANUS, C. SCIACCA, L. SERVOLI, S. SHEVCHENKO, N. SHIVAROV, V. SHOUTKO, E. SHUMILOV, A. SHVOROB, D. SON, C. SOUGA, P. SPILLANTINI, M. STEUER, D.P. STICKLAND, B. STOYANOV, A. STRAESSNER, K. SUDHAKAR, G. SULTANOV, L.Z. SUN, S. SUSHKOV, H. SUTER, J.D. SWAIN, Z. SZILLASI, X.W. TANG, P. TARJAN, L. TAUSCHER, L. TAYLOR, B. TELLILI, D. TEYSSIER, C. TIMMERMANS, SAMUEL C.C. TING, S.M. TING, S.C. TONWAR, J. TOTH, C. TULLY, K.L. TUNG, J. ULBRICHT, E. VALENTE, R.T. VAN DE WALLE, R. VASQUEZ, V. VESZPREMI, G. VESZTERGOMBI, I. VETLITSKI, D. VICINANZA, G. VIERTEL, S. VILLA, M. VIVARGENT, S. VLACHOS, I. VODOPIANOV, H. VOGEL, H. VOGT, I. VOROBIEV, A.A. VOROBYOV, M. WADHWA, Q. WANG, X.L. WANG, Z.M. WANG, M. WEBER, H. WILKENS, S. WYNHOFF, L. XIA, Z.Z. XU, J. YAMAMOTO, B.Z. YANG, C.G. YANG, H.J. YANG, M. YANG, S.C. YEH, AN. ZALITE, YU. ZALITE, Z.P. ZHANG, J. ZHAO, G.Y. ZHU, R.Y. ZHU, H.L. ZHUANG, A. ZICHICHI, B. ZIMMERMANN, M. ZOELLER, and IHEF (IoP, FNWI)

Subjects
Quark, Particle physics, Nuclear and High Energy Physics, Z boson, e&e-annihilation, rapidity gaps, 3-jet events, e+e annihilation, particle-flow, root-s, energy, jets, quark, tests, Electron–positron annihilation, Hadron, FOS: Physical sciences, ddc:500.2, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, Z boson decay, High Energy Physics - Experiment (hep-ex), colour singlet production, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle flow, Singlet state, 010306 general physics, Ciencias Exactas, Astrophysics::Galaxy Astrophysics, Physics, 010308 nuclear & particles physics, L3 experiment, colour reconnection effects, Física, 3. Good health, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

A search is performed in symmetric 3-jet hadronic Z-decay events for evidence of colour singlet production or colour reconnection effects. Asymmetries in the angular separation of particles are found to be sensitive indicators of such effects. Upper limits on the level of colour singlet production or of colour reconnection effects are established for a variety of models., Facultad de Ciencias Exactas

Published
2004

35. Search for branons at LEP

Author

R. Barillère, Roberto Battiston, J. P. Martin, N. Batalova, S. V. Baldew, D. O. Prokofiev, Felicitas Pauss, S. Rosier-Lees, P. Tarján, Dimitri Bourilkov, H. El Mamouni, L. Romero, Alexander S. Sakharov, G. Y. Zhu, E. Shumilov, Jasper Kirkby, M. A. Falagan, M. T. Dova, J. Ulbricht, B. Tellili, P. Le Coultre, M. Basile, Marco Meschini, P. Spillantini, B. Petersen, E. Fiandrini, M. Rescigno, A. Barczyk, M. Zöller, M. Bourquin, G. Cara Romeo, I. Clare, Helmut Vogel, Gyorgy Vesztergombi, S. Villa, B. Echenard, Igor Vorobiev, P. Levtchenko, Panos A Razis, Ren-Yuan Zhu, Jose A. R. Cembranos, Riccardo Paramatti, E. J. Sanchez, B. L. Betev, X. L. Wang, G. Carlino, M. Pauluzzi, Oleg Fedin, Peter Raics, D. Ren, T. Azemoon, S. Sushkov, S. Bottai, A. De Salvo, W. J. Burger, P. Bartalini, Christopher George Tully, A. Kunin, S. Mele, M. Pedace, P. Achard, Luca Lista, Kajari Mazumdar, V. Plyaskin, Egidio Longo, A. Degré, X. D. Cai, Wolfgang Lohmann, A. Gurtu, C. Souga, Z. Wang, T. Aziz, Willis Lin, W. J. Metzger, T. Novak, J. G. Branson, C. G. Yang, J. Pothier, Yu. Zalite, Harvey B Newman, I. Vodopianov, A. Engler, Alexander Malinin, B. Bertucci, Marcus Hohlmann, M. N. Kienzle-Focacci, R. Leiste, Sabine Riemann, Peter H. Fisher, S. Wynhoff, M. Capell, Jiawei Zhao, Alexei Raspereza, H. Anderhub, D. Haas, B. Zimmermann, F. Cindolo, F. Anselmo, M. Biglietti, H. S. Fesefeldt, E. Pistolesi, J. A. van Dalen, V. Veszpremi, R. Vasquez, Zhenyu Zhang, M. Lebeau, F. Behner, B. Borgia, F. Pierella, M. Vivargent, M. Dittmar, Alexei Klimentov, Michele Guida, H. Milcent, A. Krüger, A. Cartacci, W. C. Fisher, G. B. Mohanty, Alberto Aloisio, B. P. Roe, S. Braccini, Aleandro Nisati, Z. Z. Xu, C. H. Lin, V. Pojidaev, A. Biland, Joseph Quartieri, J. Allaby, K. Sudhakar, S. C. Tonwar, C. Cecchi, A. Rosca, M. Duda, X. W. Tang, R. de Asmundis, E. Delmeire, I. Fisk, Y. S. Lu, W. Kittel, Matthias Weber, J. Casaus, A. Shvorob, M. Levtchenko, Frank Filthaut, Thomas Ferguson, C. Dionisi, Subir Sarkar, F. Cavallari, Pierluigi Paolucci, H. F. Chen, P. A. Piroué, S. C. Blyth, F. Brochu, An. Zalite, K. Freudenreich, M. Chamizo, A. Lebedev, Dong-Chul Son, Georgi Sultanov, C. Palomares, P. G. Rancoita, J. H. Field, B. N. Jin, C-Q. Li, V. K. Gupta, G. Forconi, M. Pohl, M. Cerrada, D. della Volpe, S. R. Hou, M. Wadhwa, D. J. Schotanus, B. Stoyanov, G. Baksay, M. Diemoz, J. D. Burger, P. Ladron de Guevara, C. A X Pattison, G. Passaleva, H. Nowak, D. Vicinanza, D. P. Stickland, P. Lebrun, N. Cavallo, Jeremy Mans, J. Hirschfelder, Stefano Giagu, G. J. Bobbink, S. Pensotti, Valery Schegelsky, Antonino Zichichi, Mingming Yang, L. Baksay, An.A. Vorobyov, F. DeNotaristefani, I. Josa-Mutuberria, M. Kräber, Vladimir Andreev, Y. H. Chang, M. Chemarin, Z. A. Liu, G. Chiefari, G. Mirabelli, G. M. Chen, S. Cucciarelli, C. Maña, Jozsef Toth, H. Rykaczewski, Giovanni Organtini, Mariagrazia Alviggi, O. Adriani, Guo-Ming Chen, F. L. Linde, M. W. Gruenewald, A. Doria, M. Musy, S. Banerjee, G. Grenier, Imad Baptiste Laktineh, Lucas Taylor, J. K. Kim, G. Coignet, Francesca Nessi-Tedaldi, Klaus Dehmelt, G. Ruggiero, Qiuwang Wang, S. Saremi, J. Salicio, Stefan Roth, H. Wilkens, I. Vetlitsky, Ya Han Hu, J. Mnich, G. Rahal-Callot, D. Teyssier, S. Reucroft, R. Berbeco, S. Shevchenko, N. Raja, G. S. Muanza, J. Debreczeni, Jean Fay, J. M. Le Goff, J. Yamamoto, Christoph Rosemann, P. Extermann, Christoph Schäfer, B. Z. Yang, H. Hofer, A. El Hage, K. L. Tung, P. Berges, H. Suter, A. Bajo, K. Deiters, J. A. Rubio, Crisostomo Sciacca, M. Biasini, Z. Szillasi, A. Arefiev, N. Colino, Lamberto Luminari, Z. F. Gong, P. Bagnaia, Marta Felcini, R. R. McNeil, C. Furetta, V. Koutsenko, V. Shoutko, Peter Denes, M. Gataullin, H. L. Zhuang, C. Rosenbleck, Francesco Becattini, Arno Straessner, J. Berdugo, Pierre Lecomte, Werner Lustermann, Charles Timmermans, M. Dierckxsens, G. Holzner, H. J. Yang, T. Paul, R. Ofierzynski, K. Riles, S. Likhoded, S. Natale, S. Vlachos, F. Marzano, L. Boldizsar, Samuel C.C. Ting, Simonetta Gentile, Davide Piccolo, M. Kopal, S. N. Ganguli, A. Chen, S. Nagy, M. Steuer, M. A. Rahaman, D. Perret-Gallix, R. Ranieri, B. De La Cruz, P. Déglon, Speranza Falciano, J. J. Blaising, G. Landi, A. J.M. Muijs, Manjit Kaur, A. Böhm, I. Pal, R. T. Van de Walle, R. Ramelli, P. de Jong, N. Shivarov, Claudio Luci, Robert Clare, W. G. Ma, Thomas Hebbeker, Paul Lecoq, R. W. Kraemer, M. Napolitano, B. Musicar, D. Duchesneau, H. S. Chen, L. Servoli, Leonardo Merola, A. Favara, L. Tauscher, L. Cifarelli, Axel König, Yu. Galaktionov, J. Alcaraz, E. Valente, A. Mihul, G. Alemanni, S. C. Yeh, G. Viertel, L. Z. Sun, S. Patricelli, D. Hatzifotiadou, L. Bellucci, Pablo Garcia-Abia, Alain Hervé, A. Bay, L. Xia, M. Aguilar-Benitez, O. Grimm, A. Eline, Herwig Schopper, M. Pioppi, C. Paus, L. J. Gutay, L. Malgeri, U. Becker, H. Vogt, F. J. Eppling, L. W. Jones, S. Costantini, S. M. Ting, John Swain, IHEF (IoP, FNWI), L3 (IHEF, IoP, FNWI), P., Achard, Aloisio, Alberto, Alviggi, Mariagrazia, Chiefari, Giovanni, DELLA VOLPE, Domenico, Merola, Leonardo, Napolitano, Marco, Patricelli, Sergio, Sciacca, Crisostomo, Lista, Luca, Achard, Pablo, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Delmeire, Evelyne, Echenard, Bertrand, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Malgeri, Luca, Natale, Sonia, Pohl, Martin, Straessner, Arno, P. ACHARD, O. ADRIANI, M. AGUILAR-BENITEZ, J. ALCARAZ, G. ALEMANNI, J. ALLABY, A. ALOISIO, M.G. ALVIGGI, H. ANDERHUB, V.P. ANDREEV, F. ANSELMO, A. AREFIEV, T. AZEMOON, T. AZIZ, P. BAGNAIA, A. BAJO, G. BAKSAY, L. BAKSAY, S.V. BALDEW, S. BANERJEE, SW. BANERJEE, A. BARCZYK, R. BARILLÈRE, P. BARTALINI, M. BASILE, N. BATALOVA, R. BATTISTON, A. BAY, F. BECATTINI, U. BECKER, F. BEHNER, L. BELLUCCI, R. BERBECO, J. BERDUGO, P. BERGES, B. BERTUCCI, B.L. BETEV, M. BIASINI, M. BIGLIETTI, A. BILAND, J.J. BLAISING, S.C. BLYTH, G.J. BOBBINK, A. BÖHM, L. BOLDIZSAR, B. BORGIA, S. BOTTAI, D. BOURILKOV, M. BOURQUIN, S. BRACCINI, J.G. BRANSON, F. BROCHU, J.D. BURGER, W.J. BURGER, X.D. CAI, M. CAPELL, G. CARA ROMEO, G. CARLINO, A. CARTACCI, J. CASAUS, F. CAVALLARI, N. CAVALLO, C. CECCHI, M. CERRADA, M. CHAMIZO, Y.H. CHANG, M. CHEMARIN, A. CHEN, G. CHEN, G.M. CHEN, H.F. CHEN, H.S. CHEN, G. CHIEFARI, L. CIFARELLI, F. CINDOLO, I. CLARE, R. CLARE, G. COIGNET, N. COLINO, S. COSTANTINI, B. DE LA CRUZ, S. CUCCIARELLI, J.A. VAN DALEN, R. DE ASMUNDIS, P. DÉGLON, J. DEBRECZENI, A. DEGRÉ, K. DEHMELT, K. DEITERS, D. DELLA VOLPE, E. DELMEIRE, P. DENES, F. DE NOTARISTEFANI, A. DE SALVO, M. DIEMOZ, M. DIERCKXSENS, C. DIONISI, M. DITTMAR, A. DORIA, M.T. DOVA, D. DUCHESNEAU, M. DUDA, B. ECHENARD, A. ELINE, A. EL HAGE, H. EL MAMOUNI, A. ENGLER, F.J. EPPLING, P. EXTERMANN, M.A. FALAGAN, S. FALCIANO, A. FAVARA, J. FAY, O. FEDIN, M. FELCINI, T. FERGUSON, H. FESEFELDT, E. FIANDRINI, J.H. FIELD, F. FILTHAUT, P.H. FISHER, W. FISHER, I. FISK, G. FORCONI, K. FREUDENREICH, C. FURETTA, YU. GALAKTIONOV, S.N. GANGULI, P. GARCIA-ABIA, M. GATAULLIN, S. GENTILE, S. GIAGU, Z.F. GONG, G. GRENIER, O. GRIMM, M.W. GRUENEWALD, M. GUIDA, V.K. GUPTA, A. GURTU, L.J. GUTAY, D. HAAS, D. HATZIFOTIADOU, T. HEBBEKER, A. HERVÉ, J. HIRSCHFELDER, H. HOFER, M. HOHLMANN, G. HOLZNER, S.R. HOU, Y. HU, B.N. JIN, L.W. JONES, P. DE JONG, I. JOSA-MUTUBERRÍA, M. KAUR, M.N. KIENZLE-FOCACCI, J.K. KIM, J. KIRKBY, W. KITTEL, A. KLIMENTOV, A.C. KOENIG, M. KOPAL, V. KOUTSENKO, M. KRAEBER, R.W. KRAEMER, A. KRUEGER, A. KUNIN, P. LADRON DE GUEVARA, I. LAKTINEH, G. LANDI, M. LEBEAU, A. LEBEDEV, P. LEBRUN, P. LECOMTE, P. LECOQ, P. LE COULTRE, J.M. LE GOFF, R. LEISTE, M. LEVTCHENKO, P. LEVTCHENKO, C. LI, S. LIKHODED, C.H. LIN, W.T. LIN, F.L. LINDE, L. LISTA, Z.A. LIU, W. LOHMANN, E. LONGO, Y.S. LU, C. LUCI, L. LUMINARI, W. LUSTERMANN, W.G. MA, L. MALGERI, A. MALININ, C. MANA, D. MANGEOL, J. MANS, J.P. MARTIN, F. MARZANO, K. MAZUMDAR, R.R. MCNEIL, S. MELE, L. MEROLA, M. MESCHINI, W.J. METZGER, A. MIHUL, H. MILCENT, G. MIRABELLI, J. MNICH, G.B. MOHANTY, G.S. MUANZA, A.J.M. MUIJS, B. MUSICAR, M. MUSY, S. NAGY, S. NATALE, M. NAPOLITANO, F. NESSI-TEDALDI, H. NEWMAN, A. NISATI, T. NOVAK, H. NOWAK, R. OFIERZYNSKI, G. ORGANTINI, I. PAL, C. PALOMARES, P.PAOLUCCI, R. PARAMATTI, G. PASSALEVA, S. PATRICELLI, T. PAUL, M. PAULUZZI, C. PAUS, F. PAUSS, M. PEDACE, S. PENSOTTI, D. PERRET-GALLIX, B. PETERSEN, D. PICCOLO, F. PIERELLA, M. PIOPPI, P.A. PIROUE, E. PISTOLESI, V. PLYASKIN, M. POHL, V. POJIDAEV, J. POTHIER, D. PROKOFIEV, J. QUARTIERI, G. RAHAL-CALLOT, M.A.RAHAMAN, P. RAICS, N. RAJA, R. RAMELLI, P.G. RANCOITA, R. RANIERI, A. RASPEREZA, P. RAZIS, D. REN, M. RESCIGNO, S. REUCROFT, S. RIEMANN, K. RILES, B.P. ROE, L. ROMERO, A. ROSCA, C. ROSEMANN, C. ROSENBLECK, S. ROSIER-LEES, S. ROTH, J.A. RUBIO, G. RUGGIERO, H. RYKACZEWSKI, A. SAKHAROV, S. SAREMI, S. SARKAR, J. SALICIO, E. SANCHEZ, C. SCHAEFER, V. SCHEGELSKY, H. SCHOPPER, D.J. SCHOTANUS, C. SCIACCA, L. SERVOLI, S. SHEVCHENKO, N. SHIVAROV, V. SHOUTKO, E. SHUMILOV, A. SHVOROB, D. SON, C. SOUGA, P. SPILLANTINI, M. STEUER, D.P. STICKLAND, B. STOYANOV, A. STRAESSNER, K. SUDHAKAR, G. SULTANOV, L.Z. SUN, S. SUSHKOV, H. SUTER, J.D. SWAIN, Z. SZILLASI, X.W. TANG, P. TARJAN, L. TAUSCHER, L. TAYLOR, B. TELLILI, D. TEYSSIER, C. TIMMERMANS, SAMUEL C.C. TING, S.M. TING, S.C. TONWAR, J. TOTH, C. TULLY, K.L. TUNG, J. ULBRICHT, E. VALENTE, R.T. VAN DE WALLE, R. VASQUEZ, V. VESZPREMI, G. VESZTERGOMBI, I. VETLITSKI, D. VICINANZA, G. VIERTEL, S. VILLA, M. VIVARGENT, S. VLACHOS, I. VODOPIANOV, H. VOGEL, H. VOGT, I. VOROBIEV, A.A. VOROBYOV, M. WADHWA, Q. WANG, X.L. WANG, Z.M. WANG, M. WEBER, H. WILKENS, S. WYNHOFF, L. XIA, Z.Z. XU, J. YAMAMOTO, B.Z. YANG, C.G. YANG, H.J. YANG, M. YANG, S.C. YEH, AN. ZALITE, YU. ZALITE, Z.P. ZHANG, J. ZHAO, G.Y. ZHU, R.Y. ZHU, H.L. ZHUANG, A. ZICHICHI, B. ZIMMERMANN, M. ZOELLER, Achard, P, Adriani, O, Aguilar Benitez, M, Alcaraz, J, Alemanni, G, Allaby, J, Aloisio, A, Alviggi, M, Anderhub, H, Andreev, V, Anselmo, F, Arefiev, A, Azemoon, T, Aziz, T, Bagnaia, P, Bajo, A, Baksay, G, Baksay, L, Baldew, S, Banerjee, S, Barczyk, A, Barillère, R, Bartalini, P, Basile, M, Batalova, N, Battiston, R, Bay, A, Becattini, F, Becker, U, Behner, F, Bellucci, L, Berbeco, R, Berdugo, J, Berges, P, Bertucci, B, Betev, B, Biasini, M, Biglietti, M, Biland, A, Blaising, J, Blyth, S, Bobbink, G, Böhm, A, Boldizsar, L, Borgia, B, Bottai, S, Bourilkov, D, Bourquin, M, Braccini, S, Branson, J, Brochu, F, Burger, J, Burger, W, Cai, X, Capell, M, Cara Romeo, G, Carlino, G, Cartacci, A, Casaus, J, Cavallari, F, Cavallo, N, Cecchi, C, Cembranos, J, Cerrada, M, Chamizo, M, Chang, Y, Chemarin, M, Chen, A, Chen, G, Chen, H, Chiefari, G, Cifarelli, L, Cindolo, F, Clare, I, Clare, R, Coignet, G, Colino, N, Costantini, S, de La Cruz, B, Cucciarelli, S, van Dalen, J, de Asmundis, R, Déglon, P, Debreczeni, J, Degré, A, Dehmelt, K, Deiters, K, della Volpe, D, Delmeire, E, Denes, P, Denotaristefani, F, de Salvo, A, Diemoz, M, Dierckxsens, M, Dionisi, C, Dittmar, M, Doria, A, Dova, M, Duchesneau, D, Duda, M, Echenard, B, Eline, A, El Hage, A, El Mamouni, H, Engler, A, Eppling, F, Extermann, P, Falagan, M, Falciano, S, Favara, A, Fay, J, Fedin, O, Felcini, M, Ferguson, T, Fesefeldt, H, Fiandrini, E, Field, J, Filthaut, F, Fisher, P, Fisher, W, Fisk, I, Forconi, G, Freudenreich, K, Furetta, C, Galaktionov, Y, Ganguli, S, Garcia Abia, P, Gataullin, M, Gentile, S, Giagu, S, Gong, Z, Grenier, G, Grimm, O, Gruenewald, M, Guida, M, Gupta, V, Gurtu, A, Gutay, L, Haas, D, Hatzifotiadou, D, Hebbeker, T, Hervé, A, Hirschfelder, J, Hofer, H, Hohlmann, M, Holzner, G, Hou, S, Hu, Y, Jin, B, Jones, L, de Jong, P, Josa Mutuberría, I, Kaur, M, Kienzle Focacci, M, Kim, J, Kirkby, J, Kittel, W, Klimentov, A, König, A, Kopal, M, Koutsenko, V, Kräber, M, Kraemer, R, Krüger, A, Kunin, A, Ladron de Guevara, P, Laktineh, I, Landi, G, Lebeau, M, Lebedev, A, Lebrun, P, Lecomte, P, Lecoq, P, Le Coultre, P, Le Goff, J, Leiste, R, Levtchenko, M, Levtchenko, P, Li, C, Likhoded, S, Lin, C, Lin, W, Linde, F, Lista, L, Liu, Z, Lohmann, W, Longo, E, Lu, Y, Luci, C, Luminari, L, Lustermann, W, Ma, W, Malgeri, L, Malinin, A, Maña, C, Mans, J, Martin, J, Marzano, F, Mazumdar, K, Mcneil, R, Mele, S, Merola, L, Meschini, M, Metzger, W, Mihul, A, Milcent, H, Mirabelli, G, Mnich, J, Mohanty, G, Muanza, G, Muijs, A, Musicar, B, Musy, M, Nagy, S, Natale, S, Napolitano, M, Nessi Tedaldi, F, Newman, H, Nisati, A, Novak, T, Nowak, H, Ofierzynski, R, Organtini, G, Pal, I, Palomares, C, Paolucci, P, Paramatti, R, Passaleva, G, Patricelli, S, Pattison, C, Paul, T, Pauluzzi, M, Paus, C, Pauss, F, Pedace, M, Pensotti, S, Perret Gallix, D, Petersen, B, Piccolo, D, Pierella, F, Pioppi, M, Piroué, P, Pistolesi, E, Plyaskin, V, Pohl, M, Pojidaev, V, Pothier, J, Prokofiev, D, Quartieri, J, Rahal Callot, G, Rahaman, M, Raics, P, Raja, N, Ramelli, R, Rancoita, P, Ranieri, R, Raspereza, A, Razis, P, Ren, D, Rescigno, M, Reucroft, S, Riemann, S, Riles, K, Roe, B, Romero, L, Rosca, A, Rosemann, C, Rosenbleck, C, Rosier Lees, S, Roth, S, Rubio, J, Ruggiero, G, Rykaczewski, H, Sakharov, A, Saremi, S, Sarkar, S, Salicio, J, Sanchez, E, Schäfer, C, Schegelsky, V, Schopper, H, Schotanus, D, Sciacca, C, Servoli, L, Shevchenko, S, Shivarov, N, Shoutko, V, Shumilov, E, Shvorob, A, Son, D, Souga, C, Spillantini, P, Steuer, M, Stickland, D, Stoyanov, B, Straessner, A, Sudhakar, K, Sultanov, G, Sun, L, Sushkov, S, Suter, H, Swain, J, Szillasi, Z, Tang, X, Tarjan, P, Tauscher, L, Taylor, L, Tellili, B, Teyssier, D, Timmermans, C, Ting, S, Tonwar, S, Tóth, J, Tully, C, Tung, K, Ulbricht, J, Valente, E, van de Walle, R, Vasquez, R, Veszpremi, V, Vesztergombi, G, Vetlitsky, I, Vicinanza, D, Viertel, G, Villa, S, Vivargent, M, Vlachos, S, Vodopianov, I, Vogel, H, Vogt, H, Vorobiev, I, Vorobyov, A, Wadhwa, M, Wang, Q, Wang, X, Wang, Z, Weber, M, Wilkens, H, Wynhoff, S, Xia, L, Xu, Z, Yamamoto, J, Yang, B, Yang, C, Yang, H, Yang, M, Yeh, S, Zalite, A, Zalite, Y, Zhang, Z, Zhao, J, Zhu, G, Zhu, R, Zhuang, H, Zichichi, A, Zimmermann, B, Zöller, M, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), and L3

Subjects
Nuclear and High Energy Physics, Particle physics, Photon, L3,CERN-LEP-L3, Electron–positron annihilation, Ciencias Físicas, FOS: Physical sciences, Context (language use), ddc:500.2, 01 natural sciences, Standard Model, High Energy Physics - Experiment, Nuclear physics, Momentum, purl.org/becyt/ford/1 [https], High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], brane fluctuations, 010306 general physics, Nuclear Experiment, Ciencias Exactas, Bhabha scattering, Physics, Missing energy, 010308 nuclear & particles physics, monte-carlo program, w-pair production, e(+)e(-) collisions, missing energy, l3 experiment, final-states, bhabha scattering, single-photon, root-s, dimensions, Física, branons, LEP, purl.org/becyt/ford/1.3 [https], Astronomía, High Energy Physics::Experiment, Brane, FIS/04 - FISICA NUCLEARE E SUBNUCLEARE, Particle Physics - Experiment, CIENCIAS NATURALES Y EXACTAS
Abstract

We search, in the context of extra-dimension scenarios, for the possible existence of brane fluctuations, called branons. Events with a single photon or a single Z-boson and missing energy and momentum collected with the L3 detector in e+e− collisions at centre-of-mass energies √2 = 189–209 GeV are analysed. No excess over the Standard Model expectations is found and a lower limit at 95% confidence level of 103 GeV is derived for the mass of branons, for a scenario with small brane tensions. Alternatively, under the assumption of a light branon, brane tensions below 180 GeV are excluded., Facultad de Ciencias Exactas

Published
2004

36. Time-integrated luminosity recorded by the BABARdetector at the PEP-IIe+e- collider

Author

M. J. Lewczuk, E. A. Kravchenko, T. Lueck, Gabriele Simi, C. L. Davis, Crisostomo Sciacca, D. Aston, R. Gamet, A. M. Eisner, J. L. Ritchie, R. Y. So, R. Andreassen, V. Prasad, G. Hamel de Monchenault, A. P. Wagner, Mauro Morandin, J. Ocariz, M. V. Purohit, Sw. Banerjee, J. Albert, M. A. Mazzoni, G. Wormser, M. Wittgen, G. Lynch, P. Patteri, Peter S. Kim, T. Schroeder, J. W. Gary, W. Dunwoodie, S. M. Spanier, E. Behn, Douglas Wright, M. L. Kocian, B. Bhuyan, R. Cheaib, L. Piemontese, R. F. Schwitters, Marcello Rotondo, M. Sigamani, B. G. Fulsom, Jose F Benitez, I. M. Peruzzi, A. Stocchi, Bruce Schumm, James R. Wilson, E. Prencipe, X. Nguyen, Andrei Gritsan, Claudio Campagnari, E. Gabathuler, W. R. Innes, F. C. Porter, J. M. LoSecco, O. Hamon, A. Roodman, L. M. Cremaldi, Simon Akar, S. Zambito, G. Onorato, A. Cervelli, William T. Ford, H. Briand, R. Godang, V. E. Blinov, D. J. Asgeirsson, B. C. Wray, N. B. Sinev, P. Ongmongkolkul, A. N. Yushkov, A. M. Ruland, F. Forti, H. L. Lynch, M. Verderi, Heiko Lacker, D. Su, H. A. Neal, T. Pulliam, Roland Waldi, F. Ferroni, S. I. Serednyakov, F. Bianchi, D. Monorchio, C. Voß, A. E. Rubin, E. Guido, Enrico Robutti, M. Piccolo, G. Raven, E. Grauges, J. P. Burke, A. Oyanguren, J. R. Fry, G. R. Bonneaud, U. Mallik, Dmytro Kovalskyi, G. J. King, J. J. Walsh, D. R. Peimer, G. Batignani, Sridhara Dasu, C. H. Cheng, P. D. Dauncey, A. G. Denig, J. E. Brau, M. K. Sullivan, M. D. Sokoloff, A. J. Martinez, J. P. Lees, S. Sitt, P. J. Clark, T. S. Miyashita, P. R. Burchat, Nicola Neri, M. Mandelkern, D. W. G. S. Leith, M. Gaspero, A. M. Lutz, R. Calabrese, C. Touramanis, A. Adametz, Paul Fraser Harrison, R. de Sangro, E. Ben-Haim, D. M. Strom, R. Cenci, G. Cibinetto, Hossain Ahmed, Chunhui Chen, W. J. Wisniewski, R. Stroili, G. M. Vitug, T. Hartmann, A. R. Buzykaev, O. Grünberg, M. Carpinelli, P. M. Patel, P. Lewis, G. Eigen, M. R. Monge, P. C. Bloom, Yu. G. Kolomensky, C. Dallapiccola, A. Zallo, D. Lindemann, B. Echenard, D. Bernard, B. Spaan, Stephen Robert Wagner, W. H. Toki, T. Leddig, G. Calderini, D. H. Wright, Thomas Latham, H. R. Band, D. Dujmic, C. Patrignani, Z. C. Huard, K. R. Schubert, Elisa Manoni, W. S. Lockman, M. Fritsch, S. Playfer, J. Chauveau, P. Taras, E. P. Solodov, V. Tisserand, R. Gorodeisky, M. Simard, D. A. Roberts, S. Passaggio, A. A. Salnikov, A. Calcaterra, Eleonora Luppi, M. R. Convery, W. Gradl, W. Park, A. Perez, L. Lanceri, M. T. Graham, D. Bettoni, Alberto Lusiani, I. Garzia, Christopher West, G. Grosdidier, C. Angelini, J. P. Coleman, Yu I. Skovpen, Sau Lan Wu, Marco Bomben, A. Hafner, G. De Nardo, K. Yu Todyshev, M. H. Schune, G. Sciolla, F. Anulli, B. Hamilton, M. Ebert, Colin Jessop, A. Palano, U. Uwer, Biplab Dey, R. C. Field, T. S. Mattison, Alessandro Gaz, G. Finocchiaro, V. Luth, E. M. T. Puccio, P. Biassoni, G. Casarosa, M. L. Perl, Fergus Wilson, R. Prepost, V. Santoro, C. Hast, D. J. Lange, G. Piredda, F. Simonetto, P. Sonnek, R. H. Schindler, Matteo Rama, Abner Soffer, S. H. Robertson, Joseph Izen, M. Morii, Stephen Sekula, Ch Yèche, S. Prell, T. J. Gershon, Herbert Koch, E. O. Olaiya, V. B. Golubev, B. Lindquist, M. S. Alam, James H Cochran, David Hutchcroft, A. Snyder, V. Poireau, Marcello Giorgi, S. Luitz, X. C. Lou, Florian Urs Bernlochner, D. Lopes Pegna, A. Khan, V. P. Druzhinin, C. Bozzi, K. Griessinger, I. M. Nugent, N. Gagliardi, D. B. MacFarlane, F. Palombo, H. W. Wulsin, D. S. Chao, D. N. Brown, Weitao Wang, J. Dorfan, Brian Meadows, C. Bünger, R. Frey, M. Davier, M. H. Kelsey, R. Baldini-Ferroli, D. Kirkby, J. A. McKenna, B. Oberhof, T. M. Hong, G. Vasseur, K. T. Flood, V. Ziegler, K. Honscheid, James D. Olsen, R. Kroeger, R. Sacco, A. Jawahery, B. N. Ratcliff, G. Rizzo, E. Feltresi, A. P. Onuchin, M. Posocco, R. Contri, L. T. Kerth, Alessandro Rossi, R. Schwierz, C. Hearty, Ph Leruste, A. J.S. Smith, N. Arnaud, M. Lo Vetere, D. J. Summers, W. T. Meyer, R. J. Sobie, L. Vitale, F. Martinez-Vidal, Dominik Müller, N. Tasneem, S. Pacetti, R. Cowan, S. Bettarini, M. Bellis, Aidan Randle-Conde, George Lafferty, R. Faccini, M. Franco Sevilla, G. P. Dubois-Felsmann, R. Ayad, Y. B. Pan, R. Kowalewski, A. Y. Rakitin, S. Nelson, Denis Derkach, Maurizio Biasini, B. Malaescu, Owen Rosser Long, A. Seiden, J. A. Ernst, L. Sun, Adrian John Bevan, F. Ferrarotto, A. J. Lankford, F. Le Diberder, E. Torrence, J. D. Richman, Pablo Villanueva-Perez, D. J. Bard, D. G. Hitlin, G. A. Cowan, J. Va’vra, D. Gamba, Eugenio Paoloni, N. Guttman, B. Stugu, G. Marchiori, Roger Barlow, Martino Margoni, R. M. White, C. Cartaro, L. Li Gioi, P. Roudeau, A. M. Gabareen, Tim Adye, R. D. Kass, E. Fioravanti, H. H. F. Choi, S. Emery, Maurizio Martinelli, J. M. Roney, J. G. Smith, F. Di Lodovico, D. J. Payne, and U. Nauenberg

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, Electron–positron annihilation, Detector, BaBar experiment, Resonance, 01 natural sciences, Nuclear physics, 0103 physical sciences, 010306 general physics, Instrumentation
Abstract

We describe a measurement of the time-integrated luminosity of the data collected by the BABAR experiment at the PEP-II asymmetric-energy e^+e^- collider at the ϒ(4S), ϒ(3S), and ϒ(2S) resonances and in a continuum region below each resonance. We measure the time-integrated luminosity by counting e^+e^-→e^+e^- and (for the ϒ(4S) only) e^+e^-→μ^+μ^- candidate events, allowing additional photons in the final state. We use data-corrected simulation to determine the cross-sections and reconstruction efficiencies for these processes, as well as the major backgrounds. Due to the large cross-sections of e^+e^-→e^+e^- and e^+e^-→μ^+μ^-, the statistical uncertainties of the measurement are substantially smaller than the systematic uncertainties. The dominant systematic uncertainties are due to observed differences between data and simulation, as well as uncertainties on the cross-sections. For data collected on the ϒ(3S) and ϒ(2S) resonances, an additional uncertainty arises due to ϒ→e^+e^-X background. For data collected off the ϒ resonances, we estimate an additional uncertainty due to time dependent efficiency variations, which can affect the short off-resonance runs. The relative uncertainties on the luminosities of the on-resonance (off-resonance) samples are 0.43% (0.43%) for the ϒ(4S), 0.58% (0.72%) for the ϒ(3S), and 0.68% (0.88%) for the ϒ(2S).

Published
2013

37. 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

38. 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

39. 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

40. 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

41. 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

42. 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

43. 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

44. Design and status of the Mu2e electromagnetic calorimeter

Author

Luca Morescalchi, R. Donghia, V. Tereshchenko, T. S. Miyashita, F. Colao, D. Pasciuto, M. Cordelli, G. F. Tassielli, I. Sarra, B. Echenard, P. Murat, F. C. Porter, V. A. Baranov, N. Atanov, D. G. Hitlin, S. Donati, S.R. Soleti, A. Saputi, Z. Usubov, M. Martini, R. Carosi, S. Di Falco, F. Cervelli, Gianantonio Pezzullo, Ren-Yuan Zhu, G. Corradi, J. Budagov, F. Happacher, S. Giovannella, Yu.I. Davydov, E. Dané, V. Glagolev, F. Grancagnolo, K. T. Flood, S. Miscetti, F. Spinella, Atanov, N., Baranov, V., Budagov, J., Carosi, R., Cervelli, F., Colao, F., Cordelli, M., Corradi, G., Dané, E., Davydov, Yu. I., Di Falco, S., Donati, S., Donghia, R., Echenard, B., Flood, K., Giovannella, S., Glagolev, V., Grancagnolo, F., Happacher, F., Hitlin, D. G., Martini, M., Miscetti, S., Miyashita, T., Morescalchi, L., Murat, P., Pasciuto, D., Pezzullo, G., Porter, F., Saputi, A., Sarra, I., Soleti, S. R., Spinella, F., Tassielli, G., Tereshchenko, V., Usubov, Z., and Zhu, R. Y.

Subjects
Scintillating crystal, Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, APDS, Physics::Instrumentation and Detectors, Silicon photomultipliers, FOS: Physical sciences, Calorimetry, Silicon photomultiplier, 7. Clean energy, 01 natural sciences, Particle identification, law.invention, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), law, Scintillating crystals, 0103 physical sciences, Mu2e, Fermilab, 010306 general physics, Instrumentation, Nuclear and High Energy Physic, Physics, Calorimeter (particle physics), 010308 nuclear & particles physics, Avalanche photodiodes, Avalanche photodiode, Instrumentation and Detectors (physics.ins-det), Lepton flavour violation
Abstract

The Mu2e experiment at Fermilab aims at measuring the neutrinoless conversion of a negative muon into an electron and reach a single event sensitivity of 2.5x10^{-17} after three years of data taking. The monoenergetic electron produced in the final state, is detected by a high precision tracker and a crystal calorimeter, all embedded in a large superconducting solenoid (SD) surrounded by a cosmic ray veto system. The calorimeter is complementary to the tracker, allowing an independent trigger and powerful particle identification, while seeding the track reconstruction and contributing to remove background tracks mimicking the signal. In order to match these requirements, the calorimeter should have an energy resolution of O(5)% and a time resolution better than 500 ps at 100 MeV. The baseline solution is a calorimeter composed of two disks of BaF2 crystals read by UV extended, solar blind, Avalanche Photodiode (APDs), which are under development from a JPL, Caltech, RMD consortium. In this paper, the calorimeter design, the R&D studies carried out so far and the status of engineering are described. A backup alternative setup consisting of a pure CsI crystal matrix read by UV extended Hamamatsu MPPC's is also presented., 5 pages, 6 figures

Published
2016
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45. 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

46. 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

47. Measurement of the mass of the D^{0} meson

Author

J. P. Lees, V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, B. Stugu, D. N. Brown, L. T. Kerth, Yu. G. Kolomensky, M. J. Lee, G. Lynch, H. Koch, T. Schroeder, C. Hearty, T. S. Mattison, J. A. McKenna, R. Y. So, A. Khan, V. E. Blinov, A. R. Buzykaev, V. P. Druzhinin, V. B. Golubev, E. A. Kravchenko, A. P. Onuchin, S. I. Serednyakov, Yu. I. Skovpen, E. P. Solodov, K. Yu. Todyshev, A. N. Yushkov, D. Kirkby, A. J. Lankford, M. Mandelkern, B. Dey, J. W. Gary, O. Long, G. M. Vitug, C. Campagnari, M. Franco Sevilla, T. M. Hong, D. Kovalskyi, J. D. Richman, C. A. West, A. M. Eisner, W. S. Lockman, B. A. Schumm, A. Seiden, D. S. Chao, C. H. Cheng, B. Echenard, K. T. Flood, D. G. Hitlin, P. Ongmongkolkul, F. C. Porter, R. Andreassen, Z. Huard, B. T. Meadows, C. Pappenheimer, B. G. Pushpawela, M. D. Sokoloff, L. Sun, P. C. Bloom, W. T. Ford, A. Gaz, U. Nauenberg, J. G. Smith, S. R. Wagner, R. Ayad, W. H. Toki, B. Spaan, R. Schwierz, D. Bernard, M. Verderi, S. Playfer, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Fioravanti, I. Garzia, E. Luppi, L. Piemontese, V. Santoro, R. Baldini-Ferroli, A. Calcaterra, R. de Sangro, G. Finocchiaro, S. Martellotti, P. Patteri, I. M. Peruzzi, M. Piccolo, M. Rama, A. Zallo, R. Contri, E. Guido, M. Lo Vetere, M. R. Monge, S. Passaggio, C. Patrignani, E. Robutti, B. Bhuyan, V. Prasad, M. Morii, A. Adametz, U. Uwer, H. M. Lacker, P. D. Dauncey, U. Mallik, C. Chen, J. Cochran, W. T. Meyer, S. Prell, A. V. Gritsan, N. Arnaud, M. Davier, D. Derkach, G. Grosdidier, F. Le Diberder, A. M. Lutz, B. Malaescu, P. Roudeau, A. Stocchi, G. Wormser, D. J. Lange, D. M. Wright, J. P. Coleman, J. R. Fry, E. Gabathuler, D. E. Hutchcroft, D. J. Payne, C. Touramanis, A. J. Bevan, F. Di Lodovico, R. Sacco, G. Cowan, J. Bougher, C. L. Davis, A. G. Denig, M. Fritsch, W. Gradl, K. Griessinger, A. Hafner, E. Prencipe, K. R. Schubert, R. J. Barlow, G. D. Lafferty, E. Behn, R. Cenci, B. Hamilton, A. Jawahery, D. A. Roberts, R. Cowan, D. Dujmic, G. Sciolla, R. Cheaib, P. M. Patel, S. H. Robertson, P. Biassoni, N. Neri, F. Palombo, L. Cremaldi, R. Godang, P. Sonnek, D. J. Summers, M. Simard, P. Taras, G. De Nardo, D. Monorchio, G. Onorato, C. Sciacca, M. Martinelli, G. Raven, C. P. Jessop, J. M. LoSecco, K. Honscheid, R. Kass, J. Brau, R. Frey, N. B. Sinev, D. Strom, E. Torrence, E. Feltresi, M. Margoni, M. Morandin, M. Posocco, M. Rotondo, G. Simi, F. Simonetto, R. Stroili, S. Akar, E. Ben-Haim, M. Bomben, G. R. Bonneaud, H. Briand, G. Calderini, J. Chauveau, Ph. Leruste, G. Marchiori, J. Ocariz, S. Sitt, M. Biasini, E. Manoni, S. Pacetti, A. Rossi, C. Angelini, G. Batignani, S. Bettarini, M. Carpinelli, G. Casarosa, A. Cervelli, F. Forti, M. A. Giorgi, A. Lusiani, B. Oberhof, E. Paoloni, A. Perez, G. Rizzo, J. J. Walsh, D. Lopes Pegna, J. Olsen, A. J. S. Smith, R. Faccini, F. Ferrarotto, F. Ferroni, M. Gaspero, L. Li Gioi, G. Piredda, C. Bünger, O. Grünberg, T. Hartmann, T. Leddig, C. Voß, R. Waldi, T. Adye, E. O. Olaiya, F. F. Wilson, S. Emery, G. Hamel de Monchenault, G. Vasseur, Ch. Yèche, F. Anulli, D. Aston, D. J. Bard, J. F. Benitez, C. Cartaro, M. R. Convery, J. Dorfan, G. P. Dubois-Felsmann, W. Dunwoodie, M. Ebert, R. C. Field, B. G. Fulsom, A. M. Gabareen, M. T. Graham, C. Hast, W. R. Innes, P. Kim, M. L. Kocian, D. W. G. S. Leith, P. Lewis, D. Lindemann, B. Lindquist, S. Luitz, V. Luth, H. L. Lynch, D. B. MacFarlane, D. R. Muller, H. Neal, S. Nelson, M. Perl, T. Pulliam, B. N. Ratcliff, A. Roodman, A. A. Salnikov, R. H. Schindler, A. Snyder, D. Su, M. K. Sullivan, J. Va’vra, A. P. Wagner, W. F. Wang, W. J. Wisniewski, M. Wittgen, D. H. Wright, H. W. Wulsin, V. Ziegler, W. Park, M. V. Purohit, R. M. White, J. R. Wilson, A. Randle-Conde, S. J. Sekula, M. Bellis, P. R. Burchat, T. S. Miyashita, 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, A. M. Ruland, R. F. Schwitters, B. C. Wray, J. M. Izen, X. C. Lou, F. Bianchi, F. De Mori, A. Filippi, D. Gamba, S. Zambito, L. Lanceri, L. Vitale, F. Martinez-Vidal, A. Oyanguren, P. Villanueva-Perez, H. Ahmed, J. Albert, Sw. Banerjee, F. U. Bernlochner, H. H. F. Choi, G. J. King, R. Kowalewski, M. J. Lewczuk, T. Lueck, I. M. Nugent, J. M. Roney, R. J. Sobie, N. Tasneem, T. J. Gershon, P. F. Harrison, T. E. Latham, H. R. Band, S. Dasu, Y. Pan, R. Prepost, S. L. Wu, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, BABAR, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Department of Energy (US), Natural Sciences and Engineering Research Council of Canada, Institut National de Physique Nucléaire et de Physique des Particules (France), German Research Foundation, Istituto Nazionale di Fisica Nucleare, Foundation for Fundamental Research on Matter, Research Council of Norway, Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovación (España), Science and Technology Facilities Council (UK), Women in Science and Engineering (UK), Alfred P. Sloan Foundation, Federal Ministry of Education and Research (Germany), Commissariat à l'Ènergie Atomique et aux Ènergies Alternatives (France), National Science Foundation (US), J. P., Lee, V., Poireau, V., Tisserand, E., Grauge, A., Palano, G., Eigen, B., Stugu, D. N., Brown, L. T., Kerth, Kolomensky, Y. u. G., M. J., Lee, G., Lynch, H., Koch, T., Schroeder, C., Hearty, T. S., Mattison, J. A., Mckenna, R. Y., So, A., Khan, V. E., Blinov, A. R., Buzykaev, V. P., Druzhinin, V. B., Golubev, E. A., Kravchenko, A. P., Onuchin, S. I., Serednyakov, Skovpen, Y. u. I., E. P., Solodov, Todyshev, K. Y. u., A. N., Yushkov, D., Kirkby, A. J., Lankford, M., Mandelkern, B., Dey, J. W., Gary, O., Long, G. M., Vitug, C., Campagnari, M., Franco Sevilla, T. M., Hong, D., Kovalskyi, J. D., Richman, C. A., West, A. M., Eisner, W. S., Lockman, B. A., Schumm, A., Seiden, D. S., Chao, C. H., Cheng, B., Echenard, K. T., Flood, D. G., Hitlin, P., Ongmongkolkul, F. C., Porter, R., Andreassen, Z., Huard, B. T., Meadow, C., Pappenheimer, B. G., Pushpawela, M. D., Sokoloff, L., Sun, P. C., Bloom, W. T., Ford, A., Gaz, U., Nauenberg, J. G., Smith, S. R., Wagner, R., Ayad, W. H., Toki, B., Spaan, R., Schwierz, D., Bernard, M., Verderi, S., Playfer, D., Bettoni, C., Bozzi, R., Calabrese, G., Cibinetto, E., Fioravanti, I., Garzia, E., Luppi, L., Piemontese, V., Santoro, R., Baldini Ferroli, A., Calcaterra, R., de Sangro, G., Finocchiaro, S., Martellotti, P., Patteri, I. M., Peruzzi, M., Piccolo, M., Rama, A., Zallo, R., Contri, E., Guido, M., Lo Vetere, M. R., Monge, S., Passaggio, C., Patrignani, E., Robutti, B., Bhuyan, V., Prasad, M., Morii, A., Adametz, U., Uwer, H. M., Lacker, P. D., Dauncey, U., Mallik, C., Chen, J., Cochran, W. T., Meyer, S., Prell, A. V., Gritsan, N., Arnaud, M., Davier, D., Derkach, G., Grosdidier, F., Le Diberder, A. M., Lutz, B., Malaescu, P., Roudeau, A., Stocchi, G., Wormser, D. J., Lange, D. M., Wright, J. P., Coleman, J. R., Fry, E., Gabathuler, D. E., Hutchcroft, D. J., Payne, C., Touramani, A. J., Bevan, F., Di Lodovico, R., Sacco, G., Cowan, J., Bougher, C. L., Davi, A. G., Denig, M., Fritsch, W., Gradl, K., Griessinger, A., Hafner, E., Prencipe, K. R., Schubert, R. J., Barlow, G. D., Lafferty, E., Behn, R., Cenci, B., Hamilton, A., Jawahery, D. A., Robert, R., Cowan, D., Dujmic, G., Sciolla, R., Cheaib, P. M., Patel, S. H., Robertson, P., Biassoni, N., Neri, F., Palombo, L., Cremaldi, R., Godang, P., Sonnek, D. J., Summer, M., Simard, P., Tara, DE NARDO, Guglielmo, D., Monorchio, G., Onorato, Sciacca, Crisostomo, M., Martinelli, G., Raven, C. P., Jessop, J. M., Losecco, K., Honscheid, R., Ka, J., Brau, R., Frey, N. B., Sinev, D., Strom, E., Torrence, E., Feltresi, M., Margoni, M., Morandin, M., Posocco, M., Rotondo, G., Simi, F., Simonetto, R., Stroili, S., Akar, E., Ben Haim, M., Bomben, G. R., Bonneaud, H., Briand, G., Calderini, J., Chauveau, Leruste, P. h., G., Marchiori, J., Ocariz, S., Sitt, M., Biasini, E., Manoni, S., Pacetti, A., Rossi, C., Angelini, G., Batignani, S., Bettarini, M., Carpinelli, G., Casarosa, A., Cervelli, F., Forti, M. A., Giorgi, A., Lusiani, B., Oberhof, E., Paoloni, A., Perez, G., Rizzo, J. J., Walsh, D., Lopes Pegna, J., Olsen, A. J. S., Smith, R., Faccini, F., Ferrarotto, F., Ferroni, M., Gaspero, L., Li Gioi, G., Piredda, C., B?nger, O., Gr?nberg, T., Hartmann, T., Leddig, C., Vo?, R., Waldi, T., Adye, E. O., Olaiya, F. F., Wilson, S., Emery, G., Hamel de Monchenault, G., Vasseur, Y?che, C. h., F., Anulli, D., Aston, D. J., Bard, J. F., Benitez, C., Cartaro, M. R., Convery, J., Dorfan, G. P., Dubois Felsmann, W., Dunwoodie, M., Ebert, R. C., Field, B. G., Fulsom, A. M., Gabareen, M. T., Graham, C., Hast, W. R., Inne, P., Kim, M. L., Kocian, D. W. G. S., Leith, P., Lewi, D., Lindemann, B., Lindquist, S., Luitz, V., Luth, H. L., Lynch, D. B., Macfarlane, D. R., Muller, H., Neal, S., Nelson, M., Perl, T., Pulliam, B. N., Ratcliff, A., Roodman, A. A., Salnikov, R. H., Schindler, A., Snyder, D., Su, M. K., Sullivan, J., Va?vra, A. P., Wagner, W. F., Wang, W. J., Wisniewski, M., Wittgen, D. H., Wright, H. W., Wulsin, V., Ziegler, W., Park, M. V., Purohit, R. M., White, J. R., Wilson, A., Randle Conde, S. J., Sekula, M., Belli, P. R., Burchat, T. S., Miyashita, 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, A. M., Ruland, R. F., Schwitter, B. C., Wray, J. M., Izen, X. C., Lou, F., Bianchi, F., De Mori, A., Filippi, D., Gamba, S., Zambito, L., Lanceri, L., Vitale, F., Martinez Vidal, A., Oyanguren, P., Villanueva Perez, H., Ahmed, J., Albert, Banerjee, S. w., F. U., Bernlochner, H. H. F., Choi, G. J., King, R., Kowalewski, M. J., Lewczuk, T., Lueck, I. M., Nugent, J. M., Roney, R. J., Sobie, N., Tasneem, T. J., Gershon, P. F., Harrison, T. E., Latham, H. R., Band, S., Dasu, Y., Pan, R., Prepost, S. L., Wu, Universitat de Barcelona, Y. G., Kolomensky, Y. I., Skovpen, K. Y., Todyshev, M. F., Sevilla, R. d., Sangro, M. L., Vetere, F. L., Diberder, F. D., Lodovico, G. D., Nardo, C., Sciacca, P., Leruste, Lusiani, Alberto, D. L., Pegna, A. J., S., L. L., Gioi, C., Buenger, O., Gruenberg, C., Vo, G. H., De, C., Yeche, D. W., G., J., Va'Vra, E. M., T., F. D., Mori, S., Banerjee, H. H., F., Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Stugu, B., Brown, D. N., Kerth, L. T., Kolomensky, Yu. G., Lee, M. J., Lynch, G., Koch, H., Schroeder, T., Hearty, C., Mattison, T. S., Mckenna, J. A., So, R. Y., Khan, A., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Yushkov, A. N., Kirkby, D., Lankford, A. J., Mandelkern, M., Dey, B., Gary, J. W., Long, O., Vitug, G. M., Campagnari, C., Sevilla, M. Franco, Hong, T. M., Kovalskyi, D., Richman, J. D., West, C. A., Eisner, A. M., Lockman, W. S., Schumm, B. A., Seiden, A., Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Ongmongkolkul, P., Porter, F. C., Andreassen, R., Huard, Z., Meadows, B. T., Pappenheimer, C., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Bloom, P. C., Ford, W. T., Gaz, A., Nauenberg, U., Smith, J. G., Wagner, S. R., Ayad, R., Toki, W. H., Spaan, B., Schwierz, R., Bernard, D., Verderi, M., Playfer, S., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Piemontese, L., Santoro, V., Baldini-Ferroli, R., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Rama, M., Zallo, A., Contri, R., Guido, E., Lo Vetere, M., Monge, M. R., Passaggio, S., Patrignani, C., Robutti, E., Bhuyan, B., Prasad, V., Morii, M., Adametz, A., Uwer, U., Lacker, H. M., Dauncey, P. D., Mallik, U., Chen, C., Cochran, J., Meyer, W. T., Prell, S., Gritsan, A. V., Arnaud, N., Davier, M., Derkach, D., Grosdidier, G., Le Diberder, F., Lutz, A. M., Malaescu, B., Roudeau, P., Stocchi, A., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Fry, J. R., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Bougher, J., Davis, C. L., Denig, A. G., Fritsch, M., Gradl, W., Griessinger, K., Hafner, A., Prencipe, E., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Behn, E., Cenci, R., Hamilton, B., Jawahery, A., Roberts, D. A., Cowan, R., Dujmic, D., Sciolla, G., Cheaib, R., Patel, P. M., Robertson, S. H., Biassoni, P., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Sonnek, P., Summers, D. J., Simard, M., Taras, P., De Nardo, G., Monorchio, D., Onorato, G., Sciacca, C., Martinelli, M., Raven, G., Jessop, C. P., Losecco, J. M., Honscheid, K., Kass, R., Brau, J., Frey, R., Sinev, N. B., Strom, D., Torrence, E., Feltresi, E., Margoni, M., Morandin, M., Posocco, M., Rotondo, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Briand, H., Calderini, G., Chauveau, J., Leruste, Ph., Marchiori, G., Ocariz, J., Sitt, S., Biasini, M., Manoni, E., Pacetti, S., Rossi, A., Angelini, C., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Cervelli, A., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Perez, A., Rizzo, G., Walsh, J. J., Pegna, D. Lope, Olsen, J., Smith, A. J. S., Faccini, R., Ferrarotto, F., Ferroni, F., Gaspero, M., Li Gioi, L., Piredda, G., Buenger, C., Gruenberg, O., Hartmann, T., Leddig, T., Voss, C., Waldi, R., Adye, T., Olaiya, E. O., Wilson, F. F., Emery, S., de Monchenault, G. Hamel, Vasseur, G., Yeche, Ch., Anulli, F., Aston, D., Bard, D. J., Benitez, J. F., Cartaro, C., Convery, M. R., Dorfan, J., Dubois-Felsmann, G. P., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Gabareen, A. M., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Kocian, M. L., Leith, D. W. G. S., Lewis, P., Lindemann, D., Lindquist, B., Luitz, S., Luth, V., Lynch, H. L., Macfarlane, D. B., Muller, D. R., Neal, H., Nelson, S., Perl, M., Pulliam, T., Ratcliff, B. N., Roodman, A., Salnikov, A. A., Schindler, R. H., Snyder, A., Su, D., Sullivan, M. K., Va'Vra, J., Wagner, A. P., Wang, W. F., Wisniewski, W. J., Wittgen, M., Wright, D. H., Wulsin, H. W., Ziegler, V., Park, W., Purohit, M. V., White, R. M., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Bellis, M., Burchat, P. R., Miyashita, T. S., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Ruland, A. M., Schwitters, R. F., Wray, B. C., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Zambito, S., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Villanueva-Perez, P., Ahmed, H., Albert, J., Banerjee, Sw., Bernlochner, F. U., Choi, H. H. F., King, G. J., Kowalewski, R., Lewczuk, M. J., Lueck, T., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Band, H. R., Dasu, S., Pan, Y., Prepost, R., Wu, S. L., Collaboration, Babar, Lees, J, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Stugu, B, Brown, D, Kerth, L, Kolomensky, Y, Lee, M, Lynch, G, Koch, H, Schroeder, T, Hearty, C, Mattison, T, Mckenna, J, So, R, Khan, A, Blinov, V, Buzykaev, A, Druzhinin, V, Golubev, V, Kravchenko, E, Onuchin, A, Serednyakov, S, Skovpen, Y, Solodov, E, Todyshev, K, Yushkov, A, Kirkby, D, Lankford, A, Mandelkern, M, Dey, B, Gary, J, Long, O, Vitug, G, Campagnari, C, Sevilla M., F, Hong, T, Kovalskyi, D, Richman, J, West, C, Eisner, A, Lockman, W, Schumm, B, Seiden, A, Chao, D, Cheng, C, Echenard, B, Flood, K, Hitlin, D, Ongmongkolkul, P, Porter, F, Andreassen, R, Huard, Z, Meadows, B, Pappenheimer, C, Pushpawela, B, Sokoloff, M, Sun, L, Bloom, P, Ford, W, Gaz, A, Nauenberg, U, Smith, J, Wagner, S, Ayad, R, Toki, W, Spaan, B, Schwierz, R, Bernard, D, Verderi, M, Playfer, S, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Piemontese, L, Santoro, V, Baldini Ferroli, R, Calcaterra, A, de Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, I, Piccolo, M, Rama, M, Zallo, A, Contri, R, Guido, E, Lo Vetere, M, Monge, M, Passaggio, S, Patrignani, C, Robutti, E, Bhuyan, B, Prasad, V, Morii, M, Adametz, A, Uwer, U, Lacker, H, Dauncey, P, Mallik, U, Chen, C, Cochran, J, Meyer, W, Prell, S, Gritsan, A, Arnaud, N, Davier, M, Derkach, D, Grosdidier, G, Le Diberder, F, Lutz, A, Malaescu, B, Roudeau, P, Stocchi, A, Wormser, G, Lange, D, Wright, D, Coleman, J, Fry, J, Gabathuler, E, Hutchcroft, D, Payne, D, Touramanis, C, Bevan, A, Di Lodovico, F, Sacco, R, Cowan, G, Bougher, J, Davis, C, Denig, A, Fritsch, M, Gradl, W, Griessinger, K, Hafner, A, Prencipe, E, Schubert, K, Barlow, R, Lafferty, G, Behn, E, Cenci, R, Hamilton, B, Jawahery, A, Roberts, D, Cowan, R, Dujmic, D, Sciolla, G, Cheaib, R, Patel, P, Robertson, S, Biassoni, P, Neri, N, Palombo, F, Cremaldi, L, Godang, R, Sonnek, P, Summers, D, Simard, M, Taras, P, De Nardo, G, Monorchio, D, Onorato, G, Sciacca, C, Martinelli, M, Raven, G, Jessop, C, Losecco, J, Honscheid, K, Kass, R, Brau, J, Frey, R, Sinev, N, Strom, D, Torrence, E, Feltresi, E, Margoni, M, Morandin, M, Posocco, M, Rotondo, M, Simi, G, Simonetto, F, Stroili, R, Akar, S, Ben Haim, E, Bomben, M, Bonneaud, G, Briand, H, Calderini, G, Chauveau, J, Leruste, P, Marchiori, G, Ocariz, J, Sitt, S, Biasini, M, Manoni, E, Pacetti, S, Rossi, A, Angelini, C, Batignani, G, Bettarini, S, Carpinelli, M, Casarosa, G, Cervelli, A, Forti, F, Giorgi, M, Lusiani, A, Oberhof, B, Paoloni, E, Perez, A, Rizzo, G, Walsh, J, Pegna D., L, Olsen, J, Smith, A, Faccini, R, Ferrarotto, F, Ferroni, F, Gaspero, M, Li Gioi, L, Piredda, G, Buenger, C, Gruenberg, O, Hartmann, T, Leddig, T, Voss, C, Waldi, R, Adye, T, Olaiya, E, Wilson, F, Emery, S, de Monchenault G., H, Vasseur, G, Yeche, C, Anulli, F, Aston, D, Bard, D, Benitez, J, Cartaro, C, Convery, M, Dorfan, J, Dubois Felsmann, G, Dunwoodie, W, Ebert, M, Field, R, Fulsom, B, Gabareen, A, Graham, M, Hast, C, Innes, W, Kim, P, Kocian, M, Leith, D, Lewis, P, Lindemann, D, Lindquist, B, Luitz, S, Luth, V, Lynch, H, Macfarlane, D, Muller, D, Neal, H, Nelson, S, Perl, M, Pulliam, T, Ratcliff, B, Roodman, A, Salnikov, A, Schindler, R, Snyder, A, Su, D, Sullivan, M, Va'Vra, J, Wagner, A, Wang, W, Wisniewski, W, Wittgen, M, Wulsin, H, Ziegler, V, Park, W, Purohit, M, White, R, Wilson, J, Randle Conde, A, Sekula, S, Bellis, M, Burchat, P, Miyashita, T, Puccio, E, Alam, M, Ernst, J, Gorodeisky, R, Guttman, N, Peimer, D, Soffer, A, Spanier, S, Ritchie, J, Ruland, A, Schwitters, R, Wray, B, Izen, J, Lou, X, Bianchi, F, De Mori, F, Filippi, A, Gamba, D, Zambito, S, Lanceri, L, Vitale, L, Martinez Vidal, F, Oyanguren, A, Villanueva Perez, P, Ahmed, H, Albert, J, Banerjee, S, Bernlochner, F, Choi, H, King, G, Kowalewski, R, Lewczuk, M, Lueck, T, Nugent, I, Roney, J, Sobie, R, Tasneem, N, Gershon, T, Harrison, P, Latham, T, Band, H, Dasu, S, Pan, Y, Prepost, R, Wu, S, G., De Nardo, C., Bünger, O., Grünberg, C., Voß, Yèche, C. h., J., Va’Vra, Lanceri, Livio, and Vitale, Lorenzo

Subjects
Particle physics, Nuclear and High Energy Physics, Meson, Electron–positron annihilation, FOS: Physical sciences, Charmed mesons, PACS: 13.25.Ft, 14.40.Lb, 01 natural sciences, Luminosity, High Energy Physics - Experiment, Nuclear physics, Babar detector, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Mesons (Nuclear physics), Mesons (Física nuclear), 010306 general physics, Decays of charmed mesons, Physics, Decays of charmed meson, 010308 nuclear & particles physics, Detector, Resonance, D0 experiment, Massa (Física), HEP, BaBar, Física nuclear, Decay chain, Mass (Physics), Física de partícules, Experiments
Abstract

We report a measurement of the D-0 meson mass using the decay chain D* (2010) + -> D-0 pi(+) with D-0 -> K-K-K+pi(+). 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 477 fb(-1). We obtain m(D-0) (1864: 841 +/- 0: 048 +/- 0: 063) MeV, where the quoted errors are statistical and systematic, respectively. The uncertainty of this measurement is half that of the best previous measurement., We are grateful for the extraordinary contributions of our PEP- II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. 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 Nucle aire 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 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) and the A. P. Sloan Foundation (USA). The University of Cincinnati is gratefully acknowledged for its support of this research through a WISE (Women in Science and Engineering) fellowship to C. Pappenheimer.

Published
2013

48. Electroweak measurements in electron-positron collisions at W-boson-pair energies at LEP

Author

S. Schael, 1 R. Barate, 2 R. Brunelière, 2 D. Buskulic, 2 I. De Bonis, 2 D. Decamp, 2 P. Ghez, 2 C. Goy, 2 S. Jézéquel, 2 J. P. Lees, 2 A. Lucotte, 2 F. Martin, 2 E. Merle, 2 M. N. Minard, 2 J. Y. Nief, 2 P. Odier, 2 B. Pietrzyk, 2 B. Trocmé, 2 S. Bravo, 3 M. P. Casado, 3 M. Chmeissani, 3 P. Comas, 3 J. M. Crespo, 3 E. Fernandez, 3 M. Fernandez Bosman, 3 L.l. Garrido, 3, a15 E. Grauges, 3 A. Juste, 3 M. Martinez, 3 G. Merino, 3 R. Miquel, 3 L.l. M. Mir, 3 S. Orteu, 3 A. Pacheco, 3 I. C. Park, 3 J. Perlas, 3 I. Riu, 3 H. Ruiz, 3 F. Sanchez, 3 A. Colaleo, 4 D. Creanza, 4 N. De Filippis, 4 M. de Palma, 4 G. Iaselli, 4 G. Maggi, 4 M. Maggi, 4 S. Nuzzo, 4 A. Ranieri, 4 G. Raso, 4, a24 F. Ruggieri, 4 G. Selvaggi, 4 L. Silvestris, 4 P. Tempesta, 4 A. Tricomi, a3 G. Zito, 4 X. Huang, 5 J. Lin, 5 Q. Ouyang, 5 T. Wang, 5 Y. Xie, 5 R. Xu, 5 S. Xue, 5 J. Zhang, 5 L. Zhang, 5 W. Zhao, 5 D. Abbaneo, 6 A. Bazarko, 6 U. Becker, 6 G. Boix, 6, a33 F. Bird, 6 E. Blucher, 6 B. Bonvicini, 6 P. Bright Thomas, 6 T. Barklow, a26 O. Buchmüller, a26 M. Cattaneo, 6 F. Cerutti, 6 V. Ciulli, 6 B. Clerbaux, a23 H. Drevermann, 6 R. W. Forty, 6 M. Frank, 6 T. C. Greening, 6 R. Hagelberg, 6 A. W. Halley, 6 F. Gianotti, 6 M. Girone, 6 J. B. Hansen, 6 J. Harvey, 6 R. Jacobsen, 6 D. E. Hutchcroft, a30 P. Janot, 6 B. Jost, 6 J. Knobloch, 6 M. Kado, a2 I. Lehraus, 6 P. Lazeyras, 6 P. Maley, 6 P. Mato, 6 J. May, 6 A. Moutoussi, 6 M. Pepe Altarelli, 6 F. Ranjard, 6 L. Rolandi, 6 D. Schlatter, 6 B. Schmitt, 6 O. Schneider, 6 W. Tejessy, 6 F. Teubert, 6 I. R. Tomalin, 6 E. Tournefier, 6 R. Veenhof, 6 A. Valassi, 6 W. Wiedenmann, 6 A. E. Wright, 6 Z. Ajaltouni, 7 F. Badaud, 7 G. Chazelle, 7 O. Deschamps, 7 S. Dessagne, 7 A. Falvard, 7, a20 C. Ferdi, 7 D. Fayolle, 7 P. Gay, 7 C. Guicheney, 7 P. Henrard, 7 J. Jousset, 7 B. Michel, 7 S. Monteil, 7 J. C. Montret, 7 D. Pallin, 7 J. M. Pascolo, 7 P. Perret, 7 F. Podlyski, 7 H. Bertelsen, 8 T. Fernley, 8 J. D. Hansen, 8 J. R. Hansen, 8 P. H. Hansen, 8 A. C. Kraan, 8 A. Lindahl, 8 R. Mollerud, 8 B. S. Nilsson, 8 B. Rensch, 8 A. Waananen, 8 G. Daskalakis, 9 A. Kyriakis, 9 C. Markou, 9 E. Simopoulou, 9 I. Siotis, 9 A. Vayaki, 9 K. Zachariadou, 9 A. Blondel, a12 G. Bonneaud, 10 J. C. Brient, 10 F. Machefert, 10 A. Rougé, 10 M. Rumpf, 10 M. Swynghedauw, 10 R. Tanaka, 10 M. Verderi, 10 H. Videau, 10 V. Ciulli, 11 E. Focardi, 11 G. Parrini, 11 K. Zachariadou, 11 M. Corden, 12 C. Georgiopoulos, 12 A. Antonelli, 13 M. Antonelli, 13 G. Bencivenni, 13 G. Bologna, a34 F. Bossi, 13 P. Campana, 13 G. Capon, 13 F. Cerutti, 13 V. Chiarella, 13 G. Felici, 13 P. Laurelli, 13 G. Mannocchi, a5 G. P. Murtas, 13 L. Passalacqua, 13 P. Picchi, 13 P. Colrain, 14 I. ten Have, 14 I. S. Hughes, 14 J. Kennedy, 14 I. G. Knowles, 14 J. G. Lynch, 14 W. T. Morton, 14 P. Negus, 14 V. O’Shea, 14 C. Raine, 14 P. Reeves, 14 J. M. Scarr, 14 K. Smith, 14 A. S. Thompson, 14 R. M. Turnbull, 14 S. Wasserbaech, 15 O. Buchmüller, 16 R. Cavanaugh, a4 S. Dhamotharan, a21 C. Geweniger, 16 P. Hanke, 16 G. Hansper, 16 V. Hepp, 16 E. E. Kluge, 16 A. Putzer, 16 J. Sommer, 16 H. Stenzel, 16 K. Tittel, 16 W. Werner, 16 M. Wunsch, a19 R. Beuselinck, 17 D. M. Binnie, 17 W. Cameron, 17 G. Davies, 17 P. J. Dornan, 17 S. Goodsir, 17 N. Marinelli, 17 E. B. Martin, 17 J. Nash, 17 J. Nowell, 17 S. A. Rutherford, 17 J. K. Sedgbeer, 17 J. C. Thompson, a14 R. White, 17 M. D. Williams, 17 V. M. Ghete, 18 P. Girtler, 18 E. Kneringer, 18 D. Kuhn, 18 G. Rudolph, 18 E. Bouhova Thacker, 19 C. K. Bowdery, 19 P. G. Buck, 19 D. P. Clarke, 19 G. Ellis, 19 A. J. Finch, 19 F. Foster, 19 G. Hughes, 19 R. W. L. Jones, 19 N. R. Keemer, 19 M. R. Pearson, 19 N. A. Robertson, 19 T. Sloan, 19 M. Smizanska, 19 S. W. Snow, 19 M. I. Williams, 19 O. van der Aa, 20 C. Delaere, a28 G. Leibenguth, a31 V. Lemaitre, a29 L. A. T. Bauerdick, 21 U. Blumenschein, 21 P. van Gemmeren, 21 I. Giehl, 21 F. Hölldorfer, 21 K. Jakobs, 21 M. Kasemann, 21 F. Kayser, 21 K. Kleinknecht, 21 A. S. Müller, 21 G. Quast, 21 B. Renk, 21 E. Rohne, 21 H. G. Sander, 21 S. Schmeling, 21 H. Wachsmuth, 21 R. Wanke, 21 C. Zeitnitz, 21 T. Ziegler, 21 J. J. Aubert, 22 C. Benchouk, 22 A. Bonissent, 22 J. Carr, 22 P. Coyle, 22 C. Curtil, 22 A. Ealet, 22 F. Etienne, 22 D. Fouchez, 22 F. Motsch, 22 P. Payre, 22 D. Rousseau, 22 A. Tilquin, 22 M. Talby, 22 M. Thulasidas, 22 M. Aleppo, 23 M. Antonelli, 23 F. Ragusa, 23 V. Büscher, 24 A. David, 24 H. Dietl, a32 G. Ganis, a27 K. Hüttmann, 24 G. Lütjens, 24 C. Mannert, 24 W. Männer, a32 H. G. Moser, 24 R. Settles, 24 H. Seywerd, 24 H. Stenzel, 24 M. Villegas, 24 W. Wiedenmann, 24 G. Wolf, 24 P. Azzurri, 25 J. Boucrot, 25 O. Callot, 25 S. Chen, 25 A. Cordier, 25 M. Davier, 25 L. Duflot, 25 J. F. Grivaz, 25 P.h. Heusse, 25 A. Jacholkowska, a6 F. Le Diberder, 25 J. Lefrançois, 25 A. M. Mutz, 25 M. H. Schune, 25 L. Serin, 25 J. J. Veillet, 25 I. Videau, 25 D. Zerwas, 25 P. Azzurri, 26 G. Bagliesi, 26 S. Bettarini, 26 T. Boccali, 26 C. Bozzi, 26 G. Calderini, 26 R. Dell’Orso, 26 R. Fantechi, 26 I. Ferrante, 26 F. Fidecaro, 26 L. Foà, 26 A. Giammanco, 26 A. Giassi, 26 A. Gregorio, 26 F. Ligabue, 26 A. Lusiani, 26 P. S. Marrocchesi, 26 A. Messineo, 26 F. Palla, 26 G. Rizzo, 26 G. Sanguinetti, 26 A. Sciabà, 26 G. Sguazzoni, 26 P. Spagnolo, 26 J. Steinberger, 26 R. Tenchini, 26 C. Vannini, 26 A. Venturi, 26 P. G. Verdini, 26 O. Awunor, 27 G. A. Blair, 27 G. Cowan, 27 A. Garcia Bellido, 27 M. G. Green, 27 T. Medcalf, 27 A. Misiejuk, 27 J. A. Strong, 27 P. Teixeira Dias, 27 D. R. Botterill, 28 R. W. Clifft, 28 T. R. Edgecock, 28 M. Edwards, 28 S. J. Haywood, 28 P. R. Norton, 28 I. R. Tomalin, 28 J. J. Ward, 28 B. Bloch Devaux, 29 D. Boumediene, 29 P. Colas, 29 S. Emery, 29 B. Fabbro, 29 W. Kozanecki, 29 E. Lançon, 29 M. C. Lemaire, 29 E. Locci, 29 P. Perez, 29 J. Rander, 29 J. F. Renardy, 29 A. Roussarie, 29 J. P. Schuller, 29 J. Schwindling, 29 B. Tuchming, 29 B. Vallage, 29 S. N. Black, 30 J. H. Dann, 30 H. Y. Kim, 30 N. Konstantinidis, 30 A. M. Litke, 30 M. A. McNeil, 30 G. Taylor, 30 C. N. Booth, 31 S. Cartwright, 31 F. Combley, a25 P. N. Hodgson, 31 M. Lehto, 31 L. F. Thompson, 31 K. Affholderbach, 32 E. Barberio, 32 A. Böhrer, 32 S. Brandt, 32 H. Burkhardt, 32 E. Feigl, 32 C. Grupen, 32 J. Hess, 32 G. Lutters, 32 H. Meinhard, 32 J. Minguet Rodriguez, 32 L. Mirabito, 32 A. Misiejuk, 32 E. Neugebauer, 32 A. Ngac, 32 G. Prange, 32 F. Rivera, 32 P. Saraiva, 32 U. Schäfer, 32 U. Sieler, 32 L. Smolik, 32 F. Stephan, 32 H. Trier, 32 M. Apollonio, 33 C. Borean, 33 L. Bosisio, 33 R. Della Marina, 33 G. Giannini, 33 B. Gobbo, 33 G. Musolino, 33 L. Pitis, 33 H. He, 34 H. Kim, 34 J. Putz, 34 J. Rothberg, 34 S. R. Armstrong, 35 L. Bellantoni, 35 K. Berkelman, 35 D. Cinabro, 35 J. S. Conway, 35 K. Cranmer, 35 P. Elmer, 35 Z. Feng, 35 D. P. S. Ferguson, 35 Y. Gao, a13 S. González, 35 J. Grahl, 35 J. L. Harton, 35 O. J. Hayes, 35 H. Hu, 35 S. Jin, 35 R. P. Johnson, 35 J. Kile, 35 P. A. McNamara III, 35 J. Nielsen, 35 W. Orejudos, 35 Y. B. Pan, 35 Y. Saadi, 35 I. J. Scott, 35 V. Sharma, 35 A. M. Walsh, 35 J. Walsh, 35 J. Wear, 35 J. H. von Wimmersperg Toeller, 35 W. Wiedenmann, 35 J. Wu, 35 S. L. Wu, 35 X. Wu, 35 J. M. Yamartino, 35 G. Zobernig, 35 G. Dissertori, J. Abdallah, 27 P. Abreu, 24 W. Adam, 56 P. Adzic, 13 T. Albrecht, 19 R. Alemany Fernandez, 10 T. Allmendinger, 19 P. P. Allport, 25 U. Amaldi, 31 N. Amapane, 49 S. Amato, 53 E. Anashkin, 38 A. Andreazza, 30 S. Andringa, 24 N. Anjos, 24 P. Antilogus, 27 W. D. Apel, 19 Y. Arnoud, 16 S. Ask, 10 B. Asman, 48 J. E. Augustin, 27 A. Augustinus, 10 P. Baillon, 10 A. Ballestrero, 50 P. Bambade, 22 R. Barbier, 29 D. Bardin, 18 G. J. Barker, 58 A. Baroncelli, 41 M. Battaglia, 10 M. Baubillier, 27 K. H. Becks, 59 M. Begalli, 8 A. Behrmann, 59 K. Belous, 44 E. Ben Haim, 27 N. Benekos, 34 A. Benvenuti, 6 C. Berat, 16 M. Berggren, 27 L. Berntzon, 48 D. Bertrand, 3 M. Besancon, 42 N. Besson, 42 D. Bloch, 11 M. Blom, 33 M. Bluj, 57 M. Bonesini, 31 M. Boonekamp, 42 P. S. L. BoothĎ, 25 G. Borisov, 23 O. Botner, 54 B. Bouquet, 22 T. J. V. Bowcock, 25 I. Boyko, 18 M. Bracko, 45 R. Brenner, 54 E. Brodet, 37 P. Bruckman, 20 J. M. Brunet, 9 L. Bugge, 35 B. Buschbeck, 56 P. Buschmann, 59 M. Calvi, 31 T. Camporesi, 10 V. Canale, 40 F. Carena, 10 N. Castro, 24 F. Cavallo, 6 M. Chapkin, 44 P.h. Charpentier, 10 P. Checchia, 38 R. Chierici, 29 P. Chliapnikov, 44 J. Chudoba, 14 K. Cieslik, 20 P. Collins, 10 R. Contri, 15 G. Cosme, 22 F. Cossutti, 51 M. J. Costa, 55 B. Crawley, 1 D. Crennell, 39 J. Cuevas, 36 J. D’Hondt, 3 J. Dalmau, 48 T. da Silva, 53 W. Da Silva, 27 G. Della Ricca, 51 A. De Angelis, 52 W. De Boer, 19 C. De Clercq, 3 B. De Lotto, 52 N. De Maria, 49 A. De Min, 38 L. de Paula, 53 L. Di Ciaccio, 40 A. Di Simone, 40 K. Doroba, 57 J. Drees, 59 M. Dris, 34 A. Duperrin, 29 G. Eigen, 5 T. Ekelof, 54 M. Ellert, 54 M. Elsing, 10 M. C. Espirito Santo, 24 G. Fanourakis, 13 D. Fassouliotis, 4 M. Feindt, 19 J. Fernandez, 43 A. Ferrer, 55 F. Ferro, 15 U. Flagmeyer, 59 H. Foeth, 10 E. Fokitis, 34 F. Fulda Quenzer, 22 J. Fuster, 55 M. Gandelman, 53 C. Garcia, 55 P.h. Gavillet, 10 E. Gazis, 34 D. Gele, 11 R. GokieliĎ, 57 B. Golob, 47 G. Gomez Ceballos, 43 P. Gonçalves, 24 E. Graziani, 41 G. Grosdidier, 22 K. Grzelak, 57 J. Guy, 39 C. Haag, 19 A. Hallgren, 54 K. Hamacher, 59 K. Hamilton, 37 S. Haug, 35 F. Hauler, 19 V. Hedberg, 28 M. Hennecke, 19 H. HerrĎ, 10 J. Hoffman, 57 S. O. Holmgren, 48 P. J. Holt, 10 M. A. Houlden, 25 K. Hultqvist, 48 J. N. Jackson, 25 G. Jarlskog, 28 P. Jarry, 42 D. Jeans, 37 E. K. Johansson, 48 P. D. Johansson, 48 P. Jonsson, 29 C. Joram, 10 L. Jungermann, 19 F. Kapusta, 27 S. Katsanevas, 29 E. Katsoufis, 34 G. Kernel, 45 B. P. Kersevan, 47 U. Kerzel, 19 A. Kiiskinen, 17 B. T. King, 25 N. J. Kjaer, 10 P. Kluit, 33 P. Kokkinias, 13 V. Kostioukhine, 15 C. Kourkoumelis, 4 O. Kouznetsov, 18 Z. Krumstein, 18 M. Kucharczyk, 20 J. Lamsa, 1 G. Leder, 56 F. Ledroit, 16 L. Leinonen, 48 R. Leitner, 32 J. Lemonne, 3 V. LepeltierĎ, 22 T. Lesiak, 20 J. Libby, 37 W. Liebig, 59 D. Liko, 56 A. Lipniacka, 5 J. H. Lopes, 53 J. M. Lopez, 36 D. Loukas, 13 P. Lutz, 42 L. Lyons, 37 J. MacNaughton, 56 A. Malek, 59 S. Maltezos, 34 F. Mandl, 56 J. Marco, 43 R. Marco, 43 B. Marechal, 53 M. Margoni, 38 J. C. Marin, 10 C. Mariotti, 10 A. Markou, 13 C. Martinez Rivero, 43 J. Masik, 14 N. Mastroyiannopoulos, 13 F. Matorras, 43 C. Matteuzzi, 31 F. Mazzucato, 38 M. Mazzucato, 38 R. Mc Nulty, 25 C. Meroni, 30 W. T. Meyer, 1 E. Migliore, 49 W. Mitaroff, 56 U. Mjoernmark, 28 T. Moa, 48 M. Moch, 19 K. Moenig, 12 R. Monge, 15 J. Montenegro, 33 D. Moraes, 53 P. Morettini, 15 U. Mueller, 59 K. Muenich, 59 M. Mulders, 33 L. Mundim, 8 W. Murray, 39 B. Muryn, 21 G. Myatt, 37 T. Myklebust, 35 M. Nassiakou, 13 F. Navarria, 6 K. Nawrocki, 57 S. Nemecek, 14 R. Nicolaidou, 42 V. Nikolaenko, 11 M. Nikolenko, 11 A. Oblakowska Mucha, 21 V. Obraztsov, 44 A. Olshevski, 18 A. Onofre, 24 R. Orava, 17 K. Osterberg, 17 A. Ouraou, 42 A. Oyanguren, 55 M. Paganoni, 31 S. Paiano, 6 J. P. Palacios, 25 H. PalkaĎ, 20 T.h. D. Papadopoulou, 34 L. Pape, 10 C. Parkes, 26 F. Parodi, 15 U. Parzefall, 10 A. Passeri, 41 O. Passon, 59 V. Perepelitsa, 55 A. Perrotta, 6 A. Petrolini, 15 J. Piedra, 43 L. Pieri, 38 F. PierreĎ, 42 M. Pimenta, 24 T. Podobnik, 47 V. Poireau, 10 M. E. Pol, 7 G. Polok, 20 P. PoropatĎ, 51 V. Pozdniakov, 18 N. Pukhaeva, 18 A. Pullia, 31 D. Radojicic, 37 J. Rames, 14 L. Ramler, 19 A. Read, 35 P. Rebecchi, 10 J. Rehn, 19 D. Reid, 33 R. Reinhardt, 59 P. Renton, 37 F. Richard, 22 J. Ridky, 14 I. Ripp Baudot, 11 M. Rivero, 43 D. Rodriguez, 43 A. Romero, 49 P. Ronchese, 38 E. Rosenberg, 1 P. Roudeau, 6 V. Ruhlmann Kleider, 42 D. Ryabtchikov, 44 A. Sadovsky, 18 L. Salmi, 17 J. Salt, 55 C. Sander, 19 A. Savoy Navarro, 27 U. Schwickerath, 10 A. SegarĎ, 37 R. Sekulin, 39 M. Siebel, 59 L. Simard, 42 A. SisakianĎ, 18 G. Smadja, 29 O. Smirnova, 28 A. Sokolov, 44 A. Sopczak, 23 R. Sosnowski, 57 T. Spassov, 10 M. Stanitzki, 19 A. Stocchi, 22 J. Strauss, 56 B. Stugu, 5 M. Szczekowski, 57 M. Szeptycka, 57 T. Szumlak, 21 T. Tabarelli, 31 A. C. Taffard, 25 F. Tegenfeldt, 54 F. Terranova, 31 J. Thomas, 37 J. Timmermans, 33 L. Tkatchev, 18 M. Tobin, 60 S. Todorovova, 14 B. Tomé, 24 A. Tonazzo, 31 P. Tortosa, 55 P. Travnicek, 14 D. Treille, 10 G. Tristram, 9 M. Trochimczuk, 57 C. Troncon, 30 M. L. Turluer, 42 I. A. Tyapkin, 18 P. Tyapkin, 18 S. Tzamarias, 13 V. Uvarov, 44 G. Valenti, 6 P. Van Dam, 33 J. Van Eldik, 10 A. Van Lysebetten, 3 N. van Remortel, 2 I. Van Vulpen, 33 G. Vegni, 30 F. Veloso, 24 W. Venus, 39 F. VerbeureĎ, 2 P. Verdier, 29 V. Verzi, 40 D. Vilanova, 42 L. Vitale, 51 V. Vrba, 14 H. Wahlen, 59 A. J. Washbrook, 25 C. Weiser, 19 D. Wicke, 59 J. Wickens, 3 G. Wilkinson, 37 M. Winter, 11 M. Witek, 20 O. Yushchenko, 44 A. Zalewska, 20 P. Zalewski, 57 D. Zavrtanik, 46 V. Zhuravlov, 18 N. I. Zimin, 18 A. Zintchenko, 18 M. Zupan, P. Achard, 20 O. Adriani, 17 M. Aguilar Benitez, 25 J. Alcaraz, 25 G. Alemanni, 23 J. Allaby, 18 A. Aloisio, 29 M. G. Alviggi, 29 H. Anderhub, 49 V. P. Andreev, 34 F. Anselmo, 8 A. Arefiev, 28 T. Azemoon, 3 T. Aziz, 9 P. Bagnaia, 39 A. Bajo, 25 G. Baksay, 26 L. Baksay, 26 S. V. Baldew, 2 S. Banerjee, 9 S.w. Banerjee, 4 A. Barczyk, 47 R. Barillère, 18 P. Bartalini, 8 N. Batalova, 46 R. Battiston, 33 A. Bay, 23 U. Becker, 13 F. Behner, 49 L. Bellucci, 17 R. Berbeco, 3 J. Berdugo, 25 P. Berges, 13 B. Bertucci, 33 B. L. Betev, 49 M. Biasini, 33 M. Biglietti, 29 A. Biland, 49 J. J. Blaising, 4 S. C. Blyth, 35 G. J. Bobbink, 2 A. Böhm, 1 L. Boldizsar, 12 B. Borgia, 39 S. Bottai, 17 D. Bourilkov, 49 M. Bourquin, 20 S. Braccini, 20 J. G. Branson, 41 F. Brochu, 4 J. D. Burger, 13 W. J. Burger, 33 X. D. Cai, 13 M. Capell, 13 G. Cara Romeo, 8 G. Carlino, 29 A. Cartacci, 17 J. Casaus, 25 F. Cavallari, 39 N. Cavallo, 36 C. Cecchi, 33 M. Cerrada, 25 M. Chamizo, 20 Y. H. Chang, 44 M. Chemarin, 24 A. Chen, 44 G. Chen, 7 G. M. Chen, 7 H. F. Chen, 22 H. S. Chen, 7 G. Chiefari, 40 F. Cindolo, 8 I. Clare, 13 R. Clare, 38 G. Coignet, 4 N. Colino, 25 S. Costantini, 39 B. de la Cruz, 25 S. Cucciarelli, 33 R. de Asmundis, 29 P. Déglon, 20 J. Debreczeni, 12 A. Degré, 4 K. Dehmelt, 26 K. Deiters, 47 D. della Volpe, 29 E. Delmeire, 20 P. Denes, 37 F. DeNotaristefani, 39 A. De Salvo, 49 M. Diemoz, 39 M. Dierckxsens, 2 C. Dionisi, 39 M. Dittmar, 49 A. Doria, 29 M. T. Dova, ♯ D. Duchesneau, 4 M. Duda, 1 B. Echenard, 20 A. Eline, 18 A. El Hage, 1 H. El Mamouni, 24 A. Engler, 35 F. J. Eppling, 13 P. Extermann, 20 M. A. Falagan, 25 S. Falciano, 39 A. Favara, 32 J. Fay, 24 O. Fedin, 34 M. Felcini, 49 T. Ferguson, 35 H. Fesefeldt, 1 E. Fiandrini, 33 J. H. Field, 20 F. Filthaut, 31 P. H. Fisher, 13 W. Fisher, 37 G. Forconi, 13 K. Freudenreich, 49 C. Furetta, 27 Y.u. Galaktionov, 13 S. N. Ganguli, 9 P. Garcia Abia, 25 M. Gataullin, 32 S. Gentile, 39 S. Giagu, 39 Z. F. Gong, 22 G. Grenier, 24 O. Grimm, 49 M. W. Gruenewald, 16 V. K. Gupta, 37 A. Gurtu, 9 L. J. Gutay, 46 D. Haas, 5 D. Hatzifotiadou, 8 T. Hebbeker, 1 A. Hervé, 18 J. Hirschfelder, 35 H. Hofer, 49 M. Hohlmann, 26 G. Holzner, 49 S. R. Hou, 44 B. N. Jin, 7 P. Jindal, 14 L. W. Jones, 3 P. de Jong, 2 I. Josa Mutuberría, 25 M. Kaur, 14 M. N. Kienzle Focacci, 20 J. K. Kim, 43 J. Kirkby, 18 W. Kittel, 31 A. Klimentov, 28 A. C. König, 31 M. Kopal, 46 V. Koutsenko, 28 M. Kräber, 49 R. W. Kraemer, 35 A. Krüger, 48 A. Kunin, 13 P. Ladron de Guevara, 25 I. Laktineh, 24 G. Landi, 17 M. Lebeau, 18 A. Lebedev, 13 P. Lebrun, 24 P. Lecomte, 49 P. Lecoq, 18 P. Le Coultre, 49 J. M. Le Goff, 18 R. Leiste, 48 M. Levtchenko, 27 P. Levtchenko, 34 C. Li, 22 S. Likhoded, 48 C. H. Lin, 44 W. T. Lin, 44 F. L. Linde, 2 L. Lista, 29 Z. A. Liu, 7 W. Lohmann, 48 E. Longo, 39 Y. S. Lu, 7 C. Luci, 39 L. Luminari, 39 W. Lustermann, 49 W. G. Ma, 22 L. Malgeri, 18 A. Malinin, 28 C. Maña, 25 J. Mans, 37 J. P. Martin, 24 F. Marzano, 39 K. Mazumdar, 9 R. R. McNeil, 6 S. Mele, 29 L. Merola, 29 M. Meschini, 17 W. J. Metzger, 31 A. Mihul, 11 H. Milcent, 18 G. Mirabelli, 39 J. Mnich, 1 G. B. Mohanty, 9 G. S. Muanza, 24 A. J. M. Muijs, 2 M. Musy, 39 S. Nagy, 15 S. Natale, 20 M. Napolitano, 29 F. Nessi Tedaldi, 49 H. Newman, 32 A. Nisati, 39 T. Novak, 31 H. Nowak, 48 R. Ofierzynski, 49 G. Organtini, 39 I. Pal, 46 C. Palomares, 25 P. Paolucci, 29 R. Paramatti, 39 G. Passaleva, 17 S. Patricelli, 29 T. Paul, 10 M. Pauluzzi, 33 C. Paus, 13 F. Pauss, 49 M. Pedace, 39 S. Pensotti, 27 D. Perret Gallix, 4 D. Piccolo, 29 F. Pierella, 8 M. Pieri, 41 M. Pioppi, 33 P. A. Piroué, 37 E. Pistolesi, 27 V. Plyaskin, 28 M. Pohl, 20 V. Pojidaev, 17 J. Pothier, 18 D. Prokofiev, 34 G. Rahal Callot, 49 M. A. Rahaman, 9 P. Raics, 15 N. Raja, 9 R. Ramelli, 49 P. G. Rancoita, 27 R. Ranieri, 17 A. Raspereza, 48 P. Razis, 30 S. Rembeczki, 26 D. Ren, 49 M. Rescigno, 39 S. Reucroft, 10 S. Riemann, 48 K. Riles, 3 B. P. Roe, 3 L. Romero, 25 A. Rosca, 48 C. Rosemann, 1 C. Rosenbleck, 1 S. Rosier Lees, 4 S. Roth, 1 J. A. Rubio, 18 G. Ruggiero, 17 H. Rykaczewski, 49 A. Sakharov, 49 S. Saremi, 6 S. Sarkar, 39 J. Salicio, 18 E. Sanchez, 25 C. Schäfer, 18 V. Schegelsky, 34 H. Schopper, 21 D. J. Schotanus, 31 C. Sciacca, 29 L. Servoli, 33 S. Shevchenko, 32 N. Shivarov, 42 V. Shoutko, 13 E. Shumilov, 28 A. Shvorob, 32 D. Son, 43 C. Souga, 24 P. Spillantini, 17 M. Steuer, 13 D. P. Stickland, 37 B. Stoyanov, 42 A. Straessner, 20 K. Sudhakar, 9 G. Sultanov, 42 L. Z. Sun, 22 S. Sushkov, 1 H. Suter, 49 J. D. Swain, 10 Z. Szillasi, ű. X. W. Tang, 7 P. Tarjan, 15 L. Tauscher, 5 L. Taylor, 10 B. Tellili, 24 D. Teyssier, 24 C. Timmermans, 31 S. C. C. Ting, 13 S. M. Ting, 13 S. C. Tonwar, 9 J. Tóth, 12 C. Tully, 37 K. L. Tung, 7 J. Ulbricht, 49 E. Valente, 39 R. T. Van de Walle, 31 R. Vasquez, 46 G. Vesztergombi, 12 I. Vetlitsky, 28 G. Viertel, 49 M. Vivargent, 4 S. Vlachos, 5 I. Vodopianov, 26 H. Vogel, 35 H. Vogt, 48 I. Vorobiev, 28 A. A. Vorobyov, 34 M. Wadhwa, 5 Q. Wang31 X. L. Wang, 22 Z. M. Wang, 22 M. Weber, 18 S. Wynhoff, Ď. L. Xia, 32 Z. Z. Xu, 22 J. Yamamoto, 3 B. Z. Yang, 22 C. G. Yang, 7 H. J. Yang, 3 M. Yang, 7 S. C. Yeh, 45 A.n. Zalite, 34 Y.u. Zalite, 34 Z. P. Zhang, 22 J. Zhao, 22 G. Y. Zhu, 7 R. Y. Zhu, 32 H. L. Zhuang, 7 A. Zichichi, 8, 18, 19 B. Zimmermann, 49 M. Zöller, G. Abbiendi2, K. Ackerstaff7, C. Ainsley5, P. F. Åkesson7, G. Alexander21, J. Allison15, N. Altekamp5, K. Ametewee25, G. Anagnostou1, K. J. Anderson8, S. Anderson11, S. Asai22, S. F. Ashby1, D. Axen26, G. Azuelos17, A. H. Ball7, I. Bailey25, E. Barberio7, p, T. Barillari31, R. J. Barlow15, R. Bartoldus3, R. J. Batley5, S. Baumann3, P. Bechtle24, J. Bechtluft13, C. Beeston15, T. Behnke24, K. W. Bell19, P. J. Bell1, G. Bella21, A. Bellerive6, G. Benelli4, S. Bentvelsen7, P. Berlich9, S. Bethke31, O. Biebel30, O. Boeriu9, V. Blobel24, I. J. Bloodworth1, J. E. Bloomer1, M. Bobinski9, P. Bock10, H. M. Bosch10, M. Boutemeur30, B. T. Bouwens11, P. Bright Thomas1, L. Brigliadori2, R. M. Brown19, H. J. Burckhart7, C. Burgard7, R. Bürgin9, J. Cammin3, S. Campana4, R. K. Carnegie6, A. A. Carter12, J. R. Carter5, C. Y. Chang16, D. G. Charlton1, D. Chrisman4, C. Ciocca2, P. E. L. Clarke14, E. Clay14, I. Cohen21, J. E. Conboy14, O. C. Cooke15, J. Couchman14, C. Couyoumtzelis12, R. L. Coxe8, A. Csilling28, S. Dado20, C. Dallapiccola16, M. Dallavalle2, S. Dallison15, S. De Jong11, A. De Roeck7, P. Dervan14, E. A. De Wolf7, s, L. A. del Pozo7, K. Desch24, B. Dienes29, M. S. Dixit6, E. do Couto e. Silva11, M. Donkers6, M. Doucet17, J. Dubbert30, E. Duchovni23, G. Duckeck30, I. P. Duerdoth15, J. E. G. Edwards15, P. G. Estabrooks6, E. Etzion21, H. G. Evans8, M. Evans12, F. Fabbri2, M. Fanti2, P. Fath10, L. Feld9, P. Ferrari7, F. Fiedler30, M. Fierro2, H. M. Fischer3, I. Fleck9, R. Folman23, D. G. Fong16, M. Ford15, M. Foucher17, A. Frey7, A. Fürtjes7, D. I. Futyan15, P. Gagnon11, J. W. Gary4, J. Gascon17, S. M. Gascon Shotkin16, G. Gaycken24, N. I. Geddes19, C. Geich Gimbel3, T. Geralis19, G. Giacomelli2, P. Giacomelli2, R. Giacomelli2, V. Gibson5, W. R. Gibson12, D. M. Gingrich27, M. Giunta4, D. Glenzinski8, J. Goldberg20, M. J. Goodrick5, W. Gorn4, K. Graham25, C. Grandi2, E. Gross23, J. Grunhaus21, M. Gruwé7, P. O. Günther3, A. Gupta8, C. Hajdu28, M. Hamann24, G. G. Hanson4, M. Hansroul7, M. Hapke12, K. Harder24, A. Harel20, C. K. Hargrove6, M. Harin Dirac4, P. A. Hart8, C. Hartmann3, A. Hauke3, M. Hauschild7, C. M. Hawkes1, R. Hawkings7, R. J. Hemingway6, C. Hensel24, M. Herndon16, G. Herten9, R. D. Heuer24, y, M. D. Hildreth7, J. C. Hill5, S. J. Hillier1, T. Hilse9, P. R. Hobson33, A. Hocker8, K. Hoffman7, R. J. Homer1, A. K. Honma7, D. Horváth28, K. R. Hossain27, R. Howard26, R. E. Hughes Jones15, P. Hüntemeyer24, D. E. Hutchcroft5, P. Igo Kemenes10, D. C. Imrie25, M. R. Ingram15, K. Ishii22, F. R. Jacob19, A. Jawahery16, P. W. Jeffreys19, H. Jeremie17, M. Jimack1, A. Joly17, C. R. Jones5, G. Jones15, M. Jones6, R. W. L. Jones7, U. Jost10, P. Jovanovic1, T. R. Junk6, i, N. Kanaya22, J. Kanzaki22, u, G. Karapetian17, D. Karlen25, V. Kartvelishvili15, K. Kawagoe22, T. Kawamoto22, R. K. Keeler25, R. G. Kellogg16, B. W. Kennedy19, D. H. Kim18, B. J. King7, J. Kirk26, K. Klein10, A. Klier23, S. Kluth31, T. Kobayashi22, M. Kobel3, D. S. Koetke6, T. P. Kokott3, M. Kolrep9, S. Komamiya22, R. V. Kowalewski25, T. Krämer24, A. Krasznahorkay J.r. 29, e, T. Kress10, P. Krieger6, l, J. von Krogh10, T. Kuhl24, M. Kupper23, P. Kyberd12, G. D. Lafferty15, R. Lahmann16, W. P. Lai18, H. Landsman20, D. Lanske13, J. Lauber14, S. R. Lautenschlager34, I. Lawson25, J. G. Layter4, D. Lazic20, A. M. Lee34, E. Lefebvre17, A. Leins30, D. Lellouch23, J. Lettso, L. Levinson23, C. Lewis14, R. Liebisch10, J. Lillich9, B. List24, J. List24, C. Littlewood5, A. W. Lloyd1, S. L. Lloyd12, F. K. Loebinger15, G. D. Long16, M. J. Losty6, J. Lu26, b, A. Ludwig3, J. Ludwig9, A. Macchiolo17, A. Macpherson27, W. Mader3, M. Mannelli7, S. Marcellini2, T. E. Marchant15, C. Markus3, A. J. Martin12, J. P. Martin17, G. Martinez16, T. Mashimo22, W. Matthews25, P. Mättig23, m, W. J. McDonald27, J. McKenna26, E. A. Mckigney14, T. J. McMahon1, A. I. McNab12, R. A. McPherson25, P. Mendez Lorenzo30, F. Meijers7, W. Menges24, S. Menke3, F. S. Merritt8, H. Mes6, a, N. Meyer24, J. Meyer24, A. Michelini2, S. Mihara22, G. Mikenberg23, D. J. Miller14, R. Mir23, W. Mohr9, A. Montanari2, T. Mori22, M. Morii22, U. Müller3, A. Mutter9, K. Nagai12, I. Nakamura22, H. Nanjo22, H. A. Neal32, B. Nellen3, B. Nijjhar15, R. Nisius31, S. W. O’Neale1, F. G. Oakham6, F. Odorici2, H. O. Ogren11, A. Oh7, A. Okpara10, N. J. Oldershaw15, T. Omori22, M. J. Oreglia8, S. Orito22, C. Pahl31, J. Pálinkás29, G. Pásztor4, J. R. Pater15, G. N. Patrick19, J. Patt9, M. J. Pearce1, S. Petzold24, P. Pfeifenschneider13, J. E. Pilcher8, J. Pinfold27, D. E. Plane7, P. Poffenberger25, J. Polok7, B. Poli2, O. Pooth13, A. Posthaus3, M. Przybycień7, n, H. Przysiezniak27, A. Quadt31, K. Rabbertz7, D. L. Rees1, C. Rembser7, P. Renkel23, H. Rick4, D. Rigby1, S. Robertson25, S. A. Robins12, N. Rodning27, J. M. Roney25, A. Rooke14, E. Ros7, S. Rosati3, K. Roscoe15, A. M. Rossi2, M. Rosvick25, P. Routenburg27, Y. Rozen20, K. Runge9, O. Runolfsson7, U. Ruppel13, D. R. Rust11, R. Rylko25, K. Sachs6, T. Saeki22, O. Sahr30, E. K. G. Sarkisyan7, j, M. Sasaki22, C. Sbarra2, A. D. Schaile30, O. Schaile30, P. Scharff Hansen7, P. Schenk24, J. Schieck31, B. Schmitt7, S. Schmitt10, T. Schörner Sadenius7, M. Schröder7, H. C. Schultz Coulon9, M. Schulz7, M. Schumacher3, P. Schütz3, C. Schwick7, W. G. Scott19, R. Seuster13, T. G. Shears7, h, B. C. Shen4, C. H. Shepherd Themistocleous19, P. Sherwood14, A. Sittler24, A. Skillman14, A. Skuja16, A. M. Smith7, T. J. Smith25, G. A. Snow16, R. Sobie25, S. Söldner Rembold15, S. Spagnolo19, F. Spano8, x, R. W. Springer27, M. Sproston19, A. Stahl13, M. Steiert10, K. Stephens15, J. Steuerer24, B. Stockhausen3, K. Stoll9, D. Strom18, R. Ströhmer30, F. Strumia7, L. Stumpf25, B. Surrow7, P. Szymanski19, R. Tafirout17, S. D. Talbot1, S. Tanaka22, P. Taras17, S. Tarem20, R. J. Taylor14, M. Tasevsky7, d, R. Teuscher8, M. Thiergen9, J. Thomas14, M. A. Thomson5, E. von Törne3, E. Torrence18, S. Towers6, D. Toya22, T. Trefzger30, I. Trigger7, w, Z. Trócsányi29, T. Tsukamoto22, E. Tsur21, A. S. Turcot8, M. F. Turner Watson1, I. Ueda22, B. Ujvári29, P. Utzat10, B. Vachon25, R. Van Kooten11, P. Vannerem9, R. Vértesi29, M. Verzocchi16, P. Vikas17, M. Vincter25, E. H. Vokurka15, C. F. Vollmer30, H. Voss7, q, J. Vossebeld7, F. Wäckerle9, A. Wagner24, D. Waller6, C. P. Ward5, D. R. Ward5, J. J. Ward14, P. M. Watkins1, A. T. Watson1, N. K. Watson1, P. S. Wells7, T. Wengler7, N. Wermes3, D. Wetterling10 J. S. White25, B. Wilkens9, G. W. Wilson15, k, J. A. Wilson1, G. Wolf23, S. Wotton5, T. R. Wyatt15, S. Yamashita22, G. Yekutieli23, V. Zacek17, D. Zer Zion4, L. Zivkovic2, ROVELLI, TIZIANO, BASILE, MAURIZIO, CIFARELLI, LUISA, ARCELLI, SILVIA, BONACORSI, DANIELE, BRAIBANT, SYLVIE, CAPILUPPI, PAOLO, CUFFIANI, MARCO, SIROLI, GIAN PIERO, Department of Energy (US), National Science Foundation (US), Science and Technology Facilities Council (UK), Natural Sciences and Engineering Research Council of Canada, Israel Science Foundation, Ministry of Education, Culture, Sports, Science and Technology (Japan), Japan Society for the Promotion of Science, German-Israeli Foundation for Scientific Research and Development, Federal Ministry of Education and Research (Germany), National Research Council of Canada, North Atlantic Treaty Organization, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique et Astroparticules (LPTA), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ALEPH, DELPHI, L3, OPAL, Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Laboratory for Nuclear Science, S. Schael, 1 R. Barate, 2 R. Brunelière, 2 D. Buskulic, 2 I. De Boni, 2 D. Decamp, 2 P. Ghez, 2 C. Goy, 2 S. Jézéquel, 2 J.-P. Lee, 2 A. Lucotte, 2 F. Martin, 2 E. Merle, 2 M.-N. Minard, 2 J.-Y. Nief, 2 P. Odier, 2 B. Pietrzyk, 2 B. Trocmé, 2 S. Bravo, 3 M.P. Casado, 3 M. Chmeissani, 3 P. Coma, 3 J.M. Crespo, 3 E. Fernandez, 3 M. Fernandez-Bosman, 3 Ll. Garrido, a15 E. Grauge, 3 A. Juste, 3 M. Martinez, 3 G. Merino, 3 R. Miquel, 3 Ll.M. Mir, 3 S. Orteu, 3 A. Pacheco, 3 I.C. Park, 3 J. Perla, 3 I. Riu, 3 H. Ruiz, 3 F. Sanchez, 3 A. Colaleo, 4 D. Creanza, 4 N. De Filippi, 4 M. de Palma, 4 G. Iaselli, 4 G. Maggi, 4 M. Maggi, 4 S. Nuzzo, 4 A. Ranieri, 4 G. Raso, a24 F. Ruggieri, 4 G. Selvaggi, 4 L. Silvestri, 4 P. Tempesta, 4 A. Tricomi, a3 G. Zito, 4 X. Huang, 5 J. Lin, 5 Q. Ouyang, 5 T. Wang, 5 Y. Xie, 5 R. Xu, 5 S. Xue, 5 J. Zhang, 5 L. Zhang, 5 W. Zhao, 5 D. Abbaneo, 6 A. Bazarko, 6 U. Becker, 6 G. Boix, a33 F. Bird, 6 E. Blucher, 6 B. Bonvicini, 6 P. Bright-Thoma, 6 T. Barklow, a26 O. Buchmüller, a26 M. Cattaneo, 6 F. Cerutti, 6 V. Ciulli, 6 B. Clerbaux, a23 H. Drevermann, 6 R.W. Forty, 6 M. Frank, 6 T.C. Greening, 6 R. Hagelberg, 6 A.W. Halley, 6 F. Gianotti, 6 M. Girone, 6 J.B. Hansen, 6 J. Harvey, 6 R. Jacobsen, 6 D.E. Hutchcroft, a30 P. Janot, 6 B. Jost, 6 J. Knobloch, 6 M. Kado, a2 I. Lehrau, 6 P. Lazeyra, 6 P. Maley, 6 P. Mato, 6 J. May, 6 A. Moutoussi, 6 M. Pepe-Altarelli, 6 F. Ranjard, 6 L. Rolandi, 6 D. Schlatter, 6 B. Schmitt, 6 O. Schneider, 6 W. Tejessy, 6 F. Teubert, 6 I.R. Tomalin, 6 E. Tournefier, 6 R. Veenhof, 6 A. Valassi, 6 W. Wiedenmann, 6 A.E. Wright, 6 Z. Ajaltouni, 7 F. Badaud, 7 G. Chazelle, 7 O. Deschamp, 7 S. Dessagne, 7 A. Falvard, a20 C. Ferdi, 7 D. Fayolle, 7 P. Gay, 7 C. Guicheney, 7 P. Henrard, 7 J. Jousset, 7 B. Michel, 7 S. Monteil, 7 J.C. Montret, 7 D. Pallin, 7 J.M. Pascolo, 7 P. Perret, 7 F. Podlyski, 7 H. Bertelsen, 8 T. Fernley, 8 J.D. Hansen, 8 J.R. Hansen, 8 P.H. Hansen, 8 A.C. Kraan, 8 A. Lindahl, 8 R. Mollerud, 8 B.S. Nilsson, 8 B. Rensch, 8 A. Waananen, 8 G. Daskalaki, 9 A. Kyriaki, 9 C. Markou, 9 E. Simopoulou, 9 I. Sioti, 9 A. Vayaki, 9 K. Zachariadou, 9 A. Blondel, a12 G. Bonneaud, 10 J.-C. Brient, 10 F. Machefert, 10 A. Rougé, 10 M. Rumpf, 10 M. Swynghedauw, 10 R. Tanaka, 10 M. Verderi, 10 H. Videau, 10 V. Ciulli, 11 E. Focardi, 11 G. Parrini, 11 K. Zachariadou, 11 M. Corden, 12 C. Georgiopoulo, 12 A. Antonelli, 13 M. Antonelli, 13 G. Bencivenni, 13 G. Bologna, a34 F. Bossi, 13 P. Campana, 13 G. Capon, 13 F. Cerutti, 13 V. Chiarella, 13 G. Felici, 13 P. Laurelli, 13 G. Mannocchi, a5 G.P. Murta, 13 L. Passalacqua, 13 P. Picchi, 13 P. Colrain, 14 I. ten Have, 14 I.S. Hughe, 14 J. Kennedy, 14 I.G. Knowle, 14 J.G. Lynch, 14 W.T. Morton, 14 P. Negu, 14 V. O’Shea, 14 C. Raine, 14 P. Reeve, 14 J.M. Scarr, 14 K. Smith, 14 A.S. Thompson, 14 R.M. Turnbull, 14 S. Wasserbaech, 15 O. Buchmüller, 16 R. Cavanaugh, a4 S. Dhamotharan, a21 C. Geweniger, 16 P. Hanke, 16 G. Hansper, 16 V. Hepp, 16 E.E. Kluge, 16 A. Putzer, 16 J. Sommer, 16 H. Stenzel, 16 K. Tittel, 16 W. Werner, 16 M. Wunsch, a19 R. Beuselinck, 17 D.M. Binnie, 17 W. Cameron, 17 G. Davie, 17 P.J. Dornan, 17 S. Goodsir, 17 N. Marinelli, 17 E.B Martin, 17 J. Nash, 17 J. Nowell, 17 S.A. Rutherford, 17 J.K. Sedgbeer, 17 J.C. Thompson, a14 R. White, 17 M.D. William, 17 V.M. Ghete, 18 P. Girtler, 18 E. Kneringer, 18 D. Kuhn, 18 G. Rudolph, 18 E. Bouhova-Thacker, 19 C.K. Bowdery, 19 P.G. Buck, 19 D.P. Clarke, 19 G. Elli, 19 A.J. Finch, 19 F. Foster, 19 G. Hughe, 19 R.W.L. Jone, 19 N.R. Keemer, 19 M.R. Pearson, 19 N.A. Robertson, 19 T. Sloan, 19 M. Smizanska, 19 S.W. Snow, 19 M.I. William, 19 O. van der Aa, 20 C. Delaere, a28 G.Leibenguth, a31 V. Lemaitre, a29 L.A.T. Bauerdick, 21 U. Blumenschein, 21 P. van Gemmeren, 21 I. Giehl, 21 F. Hölldorfer, 21 K. Jakob, 21 M. Kasemann, 21 F. Kayser, 21 K. Kleinknecht, 21 A.-S. Müller, 21 G. Quast, 21 B. Renk, 21 E. Rohne, 21 H.-G. Sander, 21 S. Schmeling, 21 H. Wachsmuth, 21 R. Wanke, 21 C. Zeitnitz, 21 T. Ziegler, 21 J.J. Aubert, 22 C. Benchouk, 22 A. Bonissent, 22 J. Carr, 22 P. Coyle, 22 C. Curtil, 22 A. Ealet, 22 F. Etienne, 22 D. Fouchez, 22 F. Motsch, 22 P. Payre, 22 D. Rousseau, 22 A. Tilquin, 22 M. Talby, 22 M.Thulasida, 22 M. Aleppo, 23 M. Antonelli, 23 F. Ragusa, 23 V. Büscher, 24 A. David, 24 H. Dietl, a32 G. Gani, a27 K. Hüttmann, 24 G. Lütjen, 24 C. Mannert, 24 W. Männer, a32 H.-G. Moser, 24 R. Settle, 24 H. Seywerd, 24 H. Stenzel, 24 M. Villega, 24 W. Wiedenmann, 24 G. Wolf, 24 P. Azzurri, 25 J. Boucrot, 25 O. Callot, 25 S. Chen, 25 A. Cordier, 25 M. Davier, 25 L. Duflot, 25 J.-F. Grivaz, 25 Ph. Heusse, 25 A. Jacholkowska, a6 F. Le Diberder, 25 J. Lefrançoi, 25 A.M. Mutz, 25 M.H. Schune, 25 L. Serin, 25 J.-J. Veillet, 25 I. Videau, 25 D. Zerwa, 25 P. Azzurri, 26 G. Bagliesi, 26 S. Bettarini, 26 T. Boccali, 26 C. Bozzi, 26 G. Calderini, 26 R. Dell’Orso, 26 R. Fantechi, 26 I. Ferrante, 26 F. Fidecaro, 26 L. Foà, 26 A. Giammanco, 26 A. Giassi, 26 A. Gregorio, 26 F. Ligabue, 26 A. Lusiani, 26 P.S. Marrocchesi, 26 A. Messineo, 26 F. Palla, 26 G. Rizzo, 26 G. Sanguinetti, 26 A. Sciabà, 26 G. Sguazzoni, 26 P. Spagnolo, 26 J. Steinberger, 26 R. Tenchini, 26 C. Vannini, 26 A. Venturi, 26 P.G. Verdini, 26 O. Awunor, 27 G.A. Blair, 27 G. Cowan, 27 A. Garcia-Bellido, 27 M.G. Green, 27 T. Medcalf, 27 A. Misiejuk, 27 J.A. Strong, 27 P. Teixeira-Dia, 27 D.R. Botterill, 28 R.W. Clifft, 28 T.R. Edgecock, 28 M. Edward, 28 S.J. Haywood, 28 P.R. Norton, 28 I.R. Tomalin, 28 J.J. Ward, 28 B. Bloch-Devaux, 29 D. Boumediene, 29 P. Cola, 29 S. Emery, 29 B. Fabbro, 29 W. Kozanecki, 29 E. Lançon, 29 M.-C. Lemaire, 29 E. Locci, 29 P. Perez, 29 J. Rander, 29 J.F. Renardy, 29 A. Roussarie, 29 J.P. Schuller, 29 J. Schwindling, 29 B. Tuchming, 29 B. Vallage, 29 S.N. Black, 30 J.H. Dann, 30 H.Y. Kim, 30 N. Konstantinidi, 30 A.M. Litke, 30 M.A. McNeil, 30 G. Taylor, 30 C.N. Booth, 31 S. Cartwright, 31 F. Combley, a25 P.N. Hodgson, 31 M. Lehto, 31 L.F. Thompson, 31 K. Affholderbach, 32 E. Barberio, 32 A. Böhrer, 32 S. Brandt, 32 H. Burkhardt, 32 E. Feigl, 32 C. Grupen, 32 J. He, 32 G. Lutter, 32 H. Meinhard, 32 J. Minguet-Rodriguez, 32 L. Mirabito, 32 A. Misiejuk, 32 E. Neugebauer, 32 A. Ngac, 32 G. Prange, 32 F. Rivera, 32 P. Saraiva, 32 U. Schäfer, 32 U. Sieler, 32 L. Smolik, 32 F. Stephan, 32 H. Trier, 32 M. Apollonio, 33 C. Borean, 33 L. Bosisio, 33 R. Della Marina, 33 G. Giannini, 33 B. Gobbo, 33 G. Musolino, 33 L. Piti, 33 H. He, 34 H. Kim, 34 J. Putz, 34 J. Rothberg, 34 S.R. Armstrong, 35 L. Bellantoni, 35 K. Berkelman, 35 D. Cinabro, 35 J.S. Conway, 35 K. Cranmer, 35 P. Elmer, 35 Z. Feng, 35 D.P.S. Ferguson, 35 Y. Gao, a13 S. González, 35 J. Grahl, 35 J.L. Harton, 35 O.J. Haye, 35 H. Hu, 35 S. Jin, 35 R.P. Johnson, 35 J. Kile, 35 P.A. McNamara III, 35 J. Nielsen, 35 W. Orejudo, 35 Y.B. Pan, 35 Y. Saadi, 35 I.J. Scott, 35 V. Sharma, 35 A.M. Walsh, 35 J. Walsh, 35 J. Wear, 35 J.H. von Wimmersperg-Toeller, 35 W. Wiedenmann, 35 J. Wu, 35 S.L. Wu, 35 X. Wu, 35 J.M. Yamartino, 35 G. Zobernig, 35 G. Dissertori, J. Abdallah, 27 P. Abreu, 24 W. Adam, 56 P. Adzic, 13 T. Albrecht, 19 R. Alemany-Fernandez, 10 T. Allmendinger, 19 P.P. Allport, 25 U. Amaldi, 31 N. Amapane, 49 S. Amato, 53 E. Anashkin, 38 A. Andreazza, 30 S. Andringa, 24 N. Anjo, 24 P. Antilogu, 27 W-D. Apel, 19 Y. Arnoud, 16 S. Ask, 10 B. Asman, 48 J.E. Augustin, 27 A. Augustinu, 10 P. Baillon, 10 A. Ballestrero, 50 P. Bambade, 22 R. Barbier, 29 D. Bardin, 18 G.J. Barker, 58 A. Baroncelli, 41 M. Battaglia, 10 M. Baubillier, 27 K-H. Beck, 59 M. Begalli, 8 A. Behrmann, 59 K. Belou, 44 E. Ben-Haim, 27 N. Beneko, 34 A. Benvenuti, 6 C. Berat, 16 M. Berggren, 27 L. Berntzon, 48 D. Bertrand, 3 M. Besancon, 42 N. Besson, 42 D. Bloch, 11 M. Blom, 33 M. Bluj, 57 M. Bonesini, 31 M. Boonekamp, 42 P.S.L. BoothĎ, 25 G. Borisov, 23 O. Botner, 54 B. Bouquet, 22 T.J.V. Bowcock, 25 I. Boyko, 18 M. Bracko, 45 R. Brenner, 54 E. Brodet, 37 P. Bruckman, 20 J.M. Brunet, 9 L. Bugge, 35 B. Buschbeck, 56 P. Buschmann, 59 M. Calvi, 31 T. Camporesi, 10 V. Canale, 40 F. Carena, 10 N. Castro, 24 F. Cavallo, 6 M. Chapkin, 44 Ph. Charpentier, 10 P. Checchia, 38 R. Chierici, 29 P. Chliapnikov, 44 J. Chudoba, 14 K. Cieslik, 20 P. Collin, 10 R. Contri, 15 G. Cosme, 22 F. Cossutti, 51 M.J. Costa, 55 B. Crawley, 1 D. Crennell, 39 J. Cueva, 36 J. D’Hondt, 3 J. Dalmau, 48 T. da Silva, 53 W. Da Silva, 27 G. Della Ricca, 51 A. De Angeli, 52 W. De Boer, 19 C. De Clercq, 3 B. De Lotto, 52 N. De Maria, 49 A. De Min, 38 L. de Paula, 53 L. Di Ciaccio, 40 A. Di Simone, 40 K. Doroba, 57 J. Dree, 59 M. Dri, 34 A. Duperrin, 29 G. Eigen, 5 T. Ekelof, 54 M. Ellert, 54 M. Elsing, 10 M.C. Espirito Santo, 24 G. Fanouraki, 13 D. Fassoulioti, 4 M. Feindt, 19 J. Fernandez, 43 A. Ferrer, 55 F. Ferro, 15 U. Flagmeyer, 59 H. Foeth, 10 E. Fokiti, 34 F. Fulda-Quenzer, 22 J. Fuster, 55 M. Gandelman, 53 C. Garcia, 55 Ph. Gavillet, 10 E. Gazi, 34 D. Gele, 11 R. GokieliĎ, 57 B. Golob, 47 G. Gomez-Ceballo, 43 P. Gonçalve, 24 E. Graziani, 41 G. Grosdidier, 22 K. Grzelak, 57 J. Guy, 39 C. Haag, 19 A. Hallgren, 54 K. Hamacher, 59 K. Hamilton, 37 S. Haug, 35 F. Hauler, 19 V. Hedberg, 28 M. Hennecke, 19 H. HerrĎ, 10 J. Hoffman, 57 S-O. Holmgren, 48 P.J. Holt, 10 M.A. Houlden, 25 K. Hultqvist, 48 J.N. Jackson, 25 G. Jarlskog, 28 P. Jarry, 42 D. Jean, 37 E.K. Johansson, 48 P.D. Johansson, 48 P. Jonsson, 29 C. Joram, 10 L. Jungermann, 19 F. Kapusta, 27 S. Katsaneva, 29 E. Katsoufi, 34 G. Kernel, 45 B.P. Kersevan, 47 U. Kerzel, 19 A. Kiiskinen, 17 B.T. King, 25 N.J. Kjaer, 10 P. Kluit, 33 P. Kokkinia, 13 V. Kostioukhine, 15 C. Kourkoumeli, 4 O. Kouznetsov, 18 Z. Krumstein, 18 M. Kucharczyk, 20 J. Lamsa, 1 G. Leder, 56 F. Ledroit, 16 L. Leinonen, 48 R. Leitner, 32 J. Lemonne, 3 V. LepeltierĎ, 22 T. Lesiak, 20 J. Libby, 37 W. Liebig, 59 D. Liko, 56 A. Lipniacka, 5 J.H. Lope, 53 J.M. Lopez, 36 D. Louka, 13 P. Lutz, 42 L. Lyon, 37 J. MacNaughton, 56 A. Malek, 59 S. Maltezo, 34 F. Mandl, 56 J. Marco, 43 R. Marco, 43 B. Marechal, 53 M. Margoni, 38 J-C. Marin, 10 C. Mariotti, 10 A. Markou, 13 C. Martinez-Rivero, 43 J. Masik, 14 N. Mastroyiannopoulo, 13 F. Matorra, 43 C. Matteuzzi, 31 F. Mazzucato, 38 M. Mazzucato, 38 R. Mc Nulty, 25 C. Meroni, 30 W.T. Meyer, 1 E. Migliore, 49 W. Mitaroff, 56 U. Mjoernmark, 28 T. Moa, 48 M. Moch, 19 K. Moenig, 12 R. Monge, 15 J. Montenegro, 33 D. Morae, 53 P. Morettini, 15 U. Mueller, 59 K. Muenich, 59 M. Mulder, 33 L. Mundim, 8 W. Murray, 39 B. Muryn, 21 G. Myatt, 37 T. Myklebust, 35 M. Nassiakou, 13 F. Navarria, 6 K. Nawrocki, 57 S. Nemecek, 14 R. Nicolaidou, 42 V. Nikolaenko, 11 M. Nikolenko, 11 A. Oblakowska-Mucha, 21 V.Obraztsov, 44 A. Olshevski, 18 A. Onofre, 24 R. Orava, 17 K. Osterberg, 17 A. Ouraou, 42 A. Oyanguren, 55 M. Paganoni, 31 S. Paiano, 6 J.P. Palacio, 25 H. PalkaĎ, 20 Th.D. Papadopoulou, 34 L. Pape, 10 C. Parke, 26 F. Parodi, 15 U. Parzefall, 10 A. Passeri, 41 O. Passon, 59 V. Perepelitsa, 55 A. Perrotta, 6 A. Petrolini, 15 J. Piedra, 43 L. Pieri, 38 F. PierreĎ, 42 M. Pimenta, 24 T. Podobnik, 47 V. Poireau, 10 M.E. Pol, 7 G. Polok, 20 P. PoropatĎ, 51 V. Pozdniakov, 18 N. Pukhaeva, 18 A. Pullia, 31 D. Radojicic, 37 J. Rame, 14 L. Ramler, 19 A. Read, 35 P. Rebecchi, 10 J. Rehn, 19 D. Reid, 33 R. Reinhardt, 59 P. Renton, 37 F. Richard, 22 J. Ridky, 14 I. Ripp-Baudot, 11 M. Rivero, 43 D. Rodriguez, 43 A. Romero, 49 P. Ronchese, 38 E. Rosenberg, 1 P. Roudeau, 22 T. Rovelli, 6 V. Ruhlmann-Kleider, 42 D. Ryabtchikov, 44 A. Sadovsky, 18 L. Salmi, 17 J. Salt, 55 C. Sander, 19 A. Savoy-Navarro, 27 U. Schwickerath, 10 A. SegarĎ, 37 R. Sekulin, 39 M. Siebel, 59 L. Simard, 42 A. SisakianĎ, 18 G. Smadja, 29 O. Smirnova, 28 A. Sokolov, 44 A. Sopczak, 23 R. Sosnowski, 57 T. Spassov, 10 M. Stanitzki, 19 A. Stocchi, 22 J. Strau, 56 B. Stugu, 5 M. Szczekowski, 57 M. Szeptycka, 57 T. Szumlak, 21 T. Tabarelli, 31 A.C. Taffard, 25 F. Tegenfeldt, 54 F. Terranova, 31 J. Thoma, 37 J. Timmerman, 33 L. Tkatchev, 18 M. Tobin, 60 S. Todorovova, 14 B. Tomé, 24 A. Tonazzo, 31 P. Tortosa, 55 P. Travnicek, 14 D. Treille, 10 G. Tristram, 9 M. Trochimczuk, 57 C. Troncon, 30 M-L. Turluer, 42 I.A. Tyapkin, 18 P. Tyapkin, 18 S. Tzamaria, 13 V. Uvarov, 44 G. Valenti, 6 P. Van Dam, 33 J. Van Eldik, 10 A. Van Lysebetten, 3 N. van Remortel, 2 I. Van Vulpen, 33 G. Vegni, 30 F. Veloso, 24 W. Venu, 39 F. VerbeureĎ, 2 P. Verdier, 29 V. Verzi, 40 D. Vilanova, 42 L. Vitale, 51 V. Vrba, 14 H. Wahlen, 59 A.J. Washbrook, 25 C. Weiser, 19 D. Wicke, 59 J. Wicken, 3 G. Wilkinson, 37 M. Winter, 11 M. Witek, 20 O. Yushchenko, 44 A. Zalewska, 20 P. Zalewski, 57 D. Zavrtanik, 46 V. Zhuravlov, 18 N.I. Zimin, 18 A. Zintchenko, 18 M. Zupan, P.Achard, 20 O.Adriani, 17 M.Aguilar-Benitez, 25 J.Alcaraz, 25 G.Alemanni, 23 J.Allaby, 18 A.Aloisio, 29 M.G.Alviggi, 29 H.Anderhub, 49 V.P.Andreev, 34 F.Anselmo, 8 A.Arefiev, 28 T.Azemoon, 3 T.Aziz, 9 P.Bagnaia, 39 A.Bajo, 25 G.Baksay, 26 L.Baksay, 26 S.V.Baldew, 2 S.Banerjee, 9 Sw.Banerjee, 4 A.Barczyk, 47 R.Barillère, 18 P.Bartalini, 23 M.Basile, 8 N.Batalova, 46 R.Battiston, 33 A.Bay, 23 U.Becker, 13 F.Behner, 49 L.Bellucci, 17 R.Berbeco, 3 J.Berdugo, 25 P.Berge, 13 B.Bertucci, 33 B.L.Betev, 49 M.Biasini, 33 M.Biglietti, 29 A.Biland, 49 J.J.Blaising, 4 S.C.Blyth, 35 G.J.Bobbink, 2 A.Böhm, 1 L.Boldizsar, 12 B.Borgia, 39 S.Bottai, 17 D.Bourilkov, 49 M.Bourquin, 20 S.Braccini, 20 J.G.Branson, 41 F.Brochu, 4 J.D.Burger, 13 W.J.Burger, 33 X.D.Cai, 13 M.Capell, 13 G.Cara Romeo, 8 G.Carlino, 29 A.Cartacci, 17 J.Casau, 25 F.Cavallari, 39 N.Cavallo, 36 C.Cecchi, 33 M.Cerrada, 25 M.Chamizo, 20 Y.H.Chang, 44 M.Chemarin, 24 A.Chen, 44 G.Chen, 7 G.M.Chen, 7 H.F.Chen, 22 H.S.Chen, 7 G.Chiefari, 29 L.Cifarelli, 40 F.Cindolo, 8 I.Clare, 13 R.Clare, 38 G.Coignet, 4 N.Colino, 25 S.Costantini, 39 B.de la Cruz, 25 S.Cucciarelli, 33 R.de Asmundi, 29 P.Déglon, 20 J.Debreczeni, 12 A.Degré, 4 K.Dehmelt, 26 K.Deiter, 47 D.della Volpe, 29 E.Delmeire, 20 P.Dene, 37 F.DeNotaristefani, 39 A.De Salvo, 49 M.Diemoz, 39 M.Dierckxsen, 2 C.Dionisi, 39 M.Dittmar, 49 A.Doria, 29 M.T.Dova, ♯ D.Duchesneau, 4 M.Duda, 1 B.Echenard, 20 A.Eline, 18 A.El Hage, 1 H.El Mamouni, 24 A.Engler, 35 F.J.Eppling, 13 P.Extermann, 20 M.A.Falagan, 25 S.Falciano, 39 A.Favara, 32 J.Fay, 24 O.Fedin, 34 M.Felcini, 49 T.Ferguson, 35 H.Fesefeldt, 1 E.Fiandrini, 33 J.H.Field, 20 F.Filthaut, 31 P.H.Fisher, 13 W.Fisher, 37 G.Forconi, 13 K.Freudenreich, 49 C.Furetta, 27 Yu.Galaktionov, 13 S.N.Ganguli, 9 P.Garcia- Abia, 25 M.Gataullin, 32 S.Gentile, 39 S.Giagu, 39 Z.F.Gong, 22 G.Grenier, 24 O.Grimm, 49 M.W.Gruenewald, 16 V.K.Gupta, 37 A.Gurtu, 9 L.J.Gutay, 46 D.Haa, 5 D.Hatzifotiadou, 8 T.Hebbeker, 1 A.Hervé, 18 J.Hirschfelder, 35 H.Hofer, 49 M.Hohlmann, 26 G.Holzner, 49 S.R.Hou, 44 B.N.Jin, 7 P.Jindal, 14 L.W.Jone, 3 P.de Jong, 2 I.Josa-Mutuberría, 25 M.Kaur, 14 M.N.Kienzle-Focacci, 20 J.K.Kim, 43 J.Kirkby, 18 W.Kittel, 31 A.Klimentov, 28 A.C.König, 31 M.Kopal, 46 V.Koutsenko, 28 M.Kräber, 49 R.W.Kraemer, 35 A.Krüger, 48 A.Kunin, 13 P.Ladron de Guevara, 25 I.Laktineh, 24 G.Landi, 17 M.Lebeau, 18 A.Lebedev, 13 P.Lebrun, 24 P.Lecomte, 49 P.Lecoq, 18 P.Le Coultre, 49 J.M.Le Goff, 18 R.Leiste, 48 M.Levtchenko, 27 P.Levtchenko, 34 C.Li, 22 S.Likhoded, 48 C.H.Lin, 44 W.T.Lin, 44 F.L.Linde, 2 L.Lista, 29 Z.A.Liu, 7 W.Lohmann, 48 E.Longo, 39 Y.S.Lu, 7 C.Luci, 39 L.Luminari, 39 W.Lustermann, 49 W.G.Ma, 22 L.Malgeri, 18 A.Malinin, 28 C.Maña, 25 J.Man, 37 J.P.Martin, 24 F.Marzano, 39 K.Mazumdar, 9 R.R.McNeil, 6 S.Mele, 29 L.Merola, 29 M.Meschini, 17 W.J.Metzger, 31 A.Mihul, 11 H.Milcent, 18 G.Mirabelli, 39 J.Mnich, 1 G.B.Mohanty, 9 G.S.Muanza, 24 A.J.M.Muij, 2 M.Musy, 39 S.Nagy, 15 S.Natale, 20 M.Napolitano, 29 F.Nessi-Tedaldi, 49 H.Newman, 32 A.Nisati, 39 T.Novak, 31 H.Nowak, 48 R.Ofierzynski, 49 G.Organtini, 39 I.Pal, 46 C.Palomare, 25 P.Paolucci, 29 R.Paramatti, 39 G.Passaleva, 17 S.Patricelli, 29 T.Paul, 10 M.Pauluzzi, 33 C.Pau, 13 F.Pau, 49 M.Pedace, 39 S.Pensotti, 27 D.Perret-Gallix, 4 D.Piccolo, 29 F.Pierella, 8 M.Pieri, 41 M.Pioppi, 33 P.A.Piroué, 37 E.Pistolesi, 27 V.Plyaskin, 28 M.Pohl, 20 V.Pojidaev, 17 J.Pothier, 18 D.Prokofiev, 34 G.Rahal-Callot, 49 M.A.Rahaman, 9 P.Raic, 15 N.Raja, 9 R.Ramelli, 49 P.G.Rancoita, 27 R.Ranieri, 17 A.Raspereza, 48 P.Razi, 30 S.Rembeczki, 26 D.Ren, 49 M.Rescigno, 39 S.Reucroft, 10 S.Riemann, 48 K.Rile, 3 B.P.Roe, 3 L.Romero, 25 A.Rosca, 48 C.Rosemann, 1 C.Rosenbleck, 1 S.Rosier- Lee, 4 S.Roth, 1 J.A.Rubio, 18 G.Ruggiero, 17 H.Rykaczewski, 49 A.Sakharov, 49 S.Saremi, 6 S.Sarkar, 39 J.Salicio, 18 E.Sanchez, 25 C.Schäfer, 18 V.Schegelsky, 34 H.Schopper, 21 D.J.Schotanu, 31 C.Sciacca, 29 L.Servoli, 33 S.Shevchenko, 32 N.Shivarov, 42 V.Shoutko, 13 E.Shumilov, 28 A.Shvorob, 32 D.Son, 43 C.Souga, 24 P.Spillantini, 17 M.Steuer, 13 D.P.Stickland, 37 B.Stoyanov, 42 A.Straessner, 20 K.Sudhakar, 9 G.Sultanov, 42 L.Z.Sun, 22 S.Sushkov, 1 H.Suter, 49 J.D.Swain, 10 Z.Szillasi, ű X.W.Tang, 7 P.Tarjan, 15 L.Tauscher, 5 L.Taylor, 10 B.Tellili, 24 D.Teyssier, 24 C.Timmerman, 31 S.C.C.Ting, 13 S.M.Ting, 13 S.C.Tonwar, 9 J.Tóth, 12 C.Tully, 37 K.L.Tung, 7 J.Ulbricht, 49 E.Valente, 39 R.T.Van de Walle, 31 R.Vasquez, 46 G.Vesztergombi, 12 I.Vetlitsky, 28 G.Viertel, 49 M.Vivargent, 4 S.Vlacho, 5 I.Vodopianov, 26 H.Vogel, 35 H.Vogt, 48 I.Vorobiev, 28 A.A.Vorobyov, 34 M.Wadhwa, 5 Q.Wang31 X.L.Wang, 22 Z.M.Wang, 22 M.Weber, 18 S.Wynhoff, Ď L.Xia, 32 Z.Z.Xu, 22 J.Yamamoto, 3 B.Z.Yang, 22 C.G.Yang, 7 H.J.Yang, 3 M.Yang, 7 S.C.Yeh, 45 An.Zalite, 34 Yu.Zalite, 34 Z.P.Zhang, 22 J.Zhao, 22 G.Y.Zhu, 7 R.Y.Zhu, 32 H.L.Zhuang, 7 A.Zichichi, 19 B.Zimmermann, 49 M.Zöller, G. 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F., Turner Watson, I., Ueda, B., Ujvari, P., Utzat, B., Vachon, R. V., Kooten, P., Vannerem, R., Vertesi, M., Verzocchi, P., Vika, M., Vincter, E. H., Vokurka, C. F., Vollmer, H., Vo, J., Vossebeld, F., Waeckerle, A., Wagner, D., Waller, C. P., Ward, D. R., Ward, P. M., Watkin, A. T., Watson, N. K., Watson, P. S., Well, T., Wengler, N., Werme, D., Wetterling, J. S., White, B., Wilken, G. W., Wilson, J. A., Wilson, S., Wotton, T. R., Wyatt, S., Yamashita, G., Yekutieli, V., Zacek, D., Zer Zion, L., Zivkovic, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), ALEPH Collaboration, DELPHI Collaboration, L3 Collaboration, OPAL Collaboration, LEP Electroweak Working Group, Schael, S, Barate, R, Brunelière, R, Buskulic, D, De Bonis, I, Decamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J, Lucotte, A, Martin, F, Merle, E, Minard, M, Nief, J, Odier, P, Pietrzyk, B, Trocmé, B, Bravo, S, Casado, M, Chmeissani, M, Comas, P, Crespo, J, Fernandez, E, Fernandez Bosman, M, Garrido, L, Grauges, E, Juste, A, Martinez, M, Merino, G, Miquel, R, Mir, L, Orteu, S, Pacheco, A, Park, I, Perlas, J, Riu, I, Ruiz, H, Sanchez, F, Colaleo, A, Creanza, D, De Filippis, N, de Palma, M, Iaselli, G, Maggi, G, Maggi, M, Nuzzo, S, Ranieri, A, Raso, G, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Tricomi, A, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Abbaneo, D, Bazarko, A, Becker, U, Boix, G, Bird, F, Blucher, E, Bonvicini, B, Bright Thomas, P, Barklow, T, Buchmüller, O, Cattaneo, M, Cerutti, F, Ciulli, V, Clerbaux, B, Drevermann, H, Forty, R, Frank, M, Greening, T, Hagelberg, R, Halley, A, Gianotti, F, Girone, M, Hansen, J, Harvey, J, Jacobsen, R, Hutchcroft, D, Janot, P, Jost, B, Knobloch, J, Kado, M, Lehraus, I, Lazeyras, P, Maley, P, Mato, P, May, J, Moutoussi, A, Pepe Altarelli, M, Ranjard, F, Rolandi, L, Schlatter, D, Schmitt, B, Schneider, O, Tejessy, W, Teubert, F, Tomalin, I, Tournefier, E, Veenhof, R, Valassi, A, Wiedenmann, W, Wright, A, Ajaltouni, Z, Badaud, F, Chazelle, G, Deschamps, O, Dessagne, S, Falvard, A, Ferdi, C, Fayolle, D, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, J, Pallin, D, Pascolo, J, Perret, P, Podlyski, F, Bertelsen, H, Fernley, T, Hansen, P, Kraan, A, Lindahl, A, Mollerud, R, Nilsson, B, Rensch, B, Waananen, A, Daskalakis, G, Kyriakis, A, Markou, C, Simopoulou, E, Siotis, I, Vayaki, A, Zachariadou, K, Blondel, A, Bonneaud, G, Brient, J, Machefert, F, Rougé, A, Rumpf, M, Swynghedauw, M, Tanaka, R, Verderi, M, Videau, H, Focardi, E, Parrini, G, Corden, M, Georgiopoulos, C, Antonelli, A, Antonelli, M, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Felici, G, Laurelli, P, Mannocchi, G, Murtas, G, Passalacqua, L, Picchi, P, Colrain, P, ten Have, I, Hughes, I, Kennedy, J, Knowles, I, Lynch, J, Morton, 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Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), UCL - SST/IRMP - Institut de recherche en mathématique et physique, L3 (IHEF, IoP, FNWI), Delphi (IHEF, IoP, FNWI), Achard, Pablo, Bourquin, Maurice, Braccini, Saverio, Chamizo Llatas, Maria, Deglon, Patrick, Delmeire, Evelyne, Echenard, Bertrand, Extermann, Pierre, Field, John, Kienzle, Maria-Novella, Natale, Sonia, Pohl, Martin, and Straessner, Arno

Subjects
Top quark, PARTICLE PHYSICS, LARGE ELECTRON POSITRON COLLIDER, ALEPH, DELPHI, L3, OPAL, Electron–positron annihilation, Precision measurements at W-pair energies, WW boson, General Physics and Astronomy, COLOR DIPOLE MODEL, 01 natural sciences, 7. Clean energy, ZZ boson, Mathematical Sciences, High Energy Physics - Experiment, electroweak interactions, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), electron-positron physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FERMION-LOOP SCHEME, ANOMALOUS MAGNETIC-MOMENT, OF-MASS ENERGIES, TOP-QUARK MASS, CARLO EVENT GENERATOR, HADRONIC Z-DECAYS, INVARIANT YFS EXPONENTIATION, (UN)STABLE W+W-PRODUCTION, LEADING ORDER QCD, effective coupling constants, Boson, Physics, Electroweak interaction, Settore FIS/01 - Fisica Sperimentale, hep-ph, Precision measurements at WW-pair energies, Radiative corrections, Nuclear & Particles Physics, 3. Good health, Radiative correction, High Energy Physics - Phenomenology, Decays of heavy intermediate gauge bosons, Precision measurements at W-pair energie, Fermion-antifermion production, Physical Sciences, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Production (computer science), decays of heavy intermediate gauge bosons, neutral weak current, w boson, tests of the standard model, precision measurements at w-pair energies, fermion-antifermion production, top quark, higgs boson, z boson, radiative corrections, Fermion–antifermion production, ELECTROWEAK INTERACTION, Tests of the Standard Model, Particle Physics - Experiment, Particle physics, Z boson, Electron-positron physic, Electroweak interactions, Higgs boson, FOS: Physical sciences, ddc:500.2, Decays of heavy intermediate gauge boson, Effective coupling constant, Partícules (Física nuclear), Standard Model, Nuclear physics, Physics and Astronomy (all), Neutral weak current, 0103 physical sciences, ddc:530, 010306 general physics, Effective coupling constants, Electron–positron physics, hep-ex, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Electron-positron physics, W boson, Col·lisions (Física nuclear), [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Experimental High Energy Physics, Large Electron–Positron Collider, High Energy Physics::Experiment
Abstract

The ALEPH, DELPHI, L3, OPAL collaborations and LEP Electroweak Working Group.-- arXiv:1302.3415, Electroweak measurements performed with data taken at the electron-positron collider LEP at CERN from 1995 to 2000 are reported. The combined data set considered in this report corresponds to a total luminosity of about 3 fb-1 collected by the four LEP experiments ALEPH, DELPHI, L3 and OPAL, at centre-of-mass energies ranging from 130 GeV to 209 GeV. Combining the published results of the four LEP experiments, the measurements include total and differential cross-sections in photon-pair, fermion-pair and four-fermion production, the latter resulting from both double-resonant W W and Z Z production as well as singly resonant production. Total and differential cross-sections are measured precisely, providing a stringent test of the Standard Model at centre-of-mass energies never explored before in electron-positron collisions. Final-state interaction effects in four-fermion production, such as those arising from colour reconnection and Bose-Einstein correlations between the two W decay systems arising in W W production, are searched for and upper limits on the strength of possible effects are obtained. The data are used to determine fundamental properties of the W boson and the electroweak theory. Among others, the mass and width of the W boson, mW and ΓW, the branching fraction of W decays to hadrons, B (W → had), and the trilinear gauge-boson self-couplings g1 Z, κγ and λγ are determined to be: mW=80.376±0.033 GeV ΓW=2.195±0.083 GeV B(W→had)=67.41±0.27% g1 Z=0.9840+0.018 -0.020 κγ=0.982±0.042λγ=-0.022±0.019., The ALEPH, DELPHI, L3, OPAL We are cknowledge to the Department of Energy, USA, National Science Foundation, USA, Particle Physics and Astronomy Research Council, UK, Natural Sciences and Engineering Research Council, Canada, Israel Science Foundation, administered by the Israel Academy of Science and Humanities, Benoziyo Center for High Energy Physics, Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and a grant under the MEXT International Science Research Program, Japanese Society for the Promotion of Science (JSPS), German Israeli Bi-national Science Foundation (GIF), Bundesministerium für Bildung und Forschung, Germany, National Research Council of Canada, Hungarian Foundation for Scientific Research, OTKA T-038240, and T-042864, The NWO/NATO Fund for Scientific Research, the Netherlands.

Published
2013

49. Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Y(1S)

Author

J. P. Lees, V. Poireau, V. Tisserand, J. Garra Tico, E. Grauges, A. Palano, G. Eigen, B. Stugu, D. N. Brown, A. Georges, L. T. Kerth, Yu. G. Kolomensky, G. Lynch, U. Paudel, H. Koch, T. Schroeder, D. J. Asgeirsson, C. Hearty, T. S. Mattison, J. A. McKenna, R. Y. So, A. Khan, V. E. Blinov, A. R. Buzykaev, V. P. Druzhinin, V. B. Golubev, E. A. Kravchenko, A. P. Onuchin, S. I. Serednyakov, Yu. I. Skovpen, E. P. Solodov, K. Yu. Todyshev, A. N. Yushkov, M. Bondioli, D. Kirkby, A. J. Lankford, M. Mandelkern, H. Atmacan, J. W. Gary, F. Liu, O. Long, G. M. Vitug, C. Campagnari, T. M. Hong, D. Kovalskyi, J. D. Richman, C. A. West, A. M. Eisner, J. Kroseberg, W. S. Lockman, A. J. Martinez, B. A. Schumm, A. Seiden, D. S. Chao, C. H. Cheng, B. Echenard, K. T. Flood, D. G. Hitlin, P. Ongmongkolkul, F. C. Porter, A. Y. Rakitin, R. Andreassen, Z. Huard, B. T. Meadows, M. D. Sokoloff, L. Sun, P. C. Bloom, W. T. Ford, A. Gaz, U. Nauenberg, J. G. Smith, S. R. Wagner, R. Ayad, W. H. Toki, B. Spaan, K. R. Schubert, R. Schwierz, D. Bernard, M. Verderi, P. J. Clark, S. Playfer, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Fioravanti, I. Garzia, E. Luppi, M. Munerato, L. Piemontese, V. Santoro, R. Baldini-Ferroli, A. Calcaterra, R. de Sangro, G. Finocchiaro, P. Patteri, I. M. Peruzzi, M. Piccolo, M. Rama, A. Zallo, R. Contri, E. Guido, M. Lo Vetere, M. R. Monge, S. Passaggio, C. Patrignani, E. Robutti, B. Bhuyan, V. Prasad, C. L. Lee, M. Morii, A. J. Edwards, A. Adametz, U. Uwer, H. M. Lacker, T. Lueck, P. D. Dauncey, U. Mallik, C. Chen, J. Cochran, W. T. Meyer, S. Prell, A. E. Rubin, A. V. Gritsan, Z. J. Guo, N. Arnaud, M. Davier, D. Derkach, G. Grosdidier, F. Le Diberder, A. M. Lutz, B. Malaescu, P. Roudeau, M. H. Schune, A. Stocchi, G. Wormser, D. J. Lange, D. M. Wright, C. A. Chavez, J. P. Coleman, J. R. Fry, E. Gabathuler, D. E. Hutchcroft, D. J. Payne, C. Touramanis, A. J. Bevan, F. Di Lodovico, R. Sacco, M. Sigamani, G. Cowan, C. L. Davis, A. G. Denig, M. Fritsch, W. Gradl, K. Griessinger, A. Hafner, E. Prencipe, R. J. Barlow, G. Jackson, G. D. Lafferty, E. Behn, R. Cenci, B. Hamilton, A. Jawahery, D. A. Roberts, C. Dallapiccola, R. Cowan, D. Dujmic, G. Sciolla, R. Cheaib, D. Lindemann, P. M. Patel, S. H. Robertson, P. Biassoni, N. Neri, F. Palombo, S. Stracka, L. Cremaldi, R. Godang, R. Kroeger, P. Sonnek, D. J. Summers, X. Nguyen, M. Simard, P. Taras, G. De Nardo, D. Monorchio, G. Onorato, C. Sciacca, M. Martinelli, G. Raven, C. P. Jessop, J. M. LoSecco, W. F. Wang, K. Honscheid, R. Kass, J. Brau, R. Frey, N. B. Sinev, D. Strom, E. Torrence, E. Feltresi, N. Gagliardi, M. Margoni, M. Morandin, M. Posocco, M. Rotondo, G. Simi, F. Simonetto, R. Stroili, S. Akar, E. Ben-Haim, M. Bomben, G. R. Bonneaud, H. Briand, G. Calderini, J. Chauveau, O. Hamon, Ph. Leruste, G. Marchiori, J. Ocariz, S. Sitt, M. Biasini, E. Manoni, S. Pacetti, A. Rossi, C. Angelini, G. Batignani, S. Bettarini, M. Carpinelli, G. Casarosa, A. Cervelli, F. Forti, M. A. Giorgi, A. Lusiani, B. Oberhof, E. Paoloni, A. Perez, G. Rizzo, J. J. Walsh, D. Lopes Pegna, J. Olsen, A. J. S. Smith, A. V. Telnov, F. Anulli, R. Faccini, F. Ferrarotto, F. Ferroni, M. Gaspero, L. Li Gioi, M. A. Mazzoni, G. Piredda, C. Bünger, O. Grünberg, T. Hartmann, T. Leddig, C. Voß, R. Waldi, T. Adye, E. O. Olaiya, F. F. Wilson, S. Emery, G. Hamel de Monchenault, G. Vasseur, Ch. Yèche, D. Aston, D. J. Bard, R. Bartoldus, J. F. Benitez, C. Cartaro, M. R. Convery, J. Dorfan, G. P. Dubois-Felsmann, W. Dunwoodie, M. Ebert, R. C. Field, M. Franco Sevilla, B. G. Fulsom, A. M. Gabareen, M. T. Graham, P. Grenier, C. Hast, W. R. Innes, M. H. Kelsey, P. Kim, M. L. Kocian, D. W. G. S. Leith, P. Lewis, B. Lindquist, S. Luitz, V. Luth, H. L. Lynch, D. B. MacFarlane, D. R. Muller, H. Neal, S. Nelson, M. Perl, T. Pulliam, B. N. Ratcliff, A. Roodman, A. A. Salnikov, R. H. Schindler, A. Snyder, D. Su, M. K. Sullivan, J. Va’vra, A. P. Wagner, W. J. Wisniewski, M. Wittgen, D. H. Wright, H. W. Wulsin, C. C. Young, V. Ziegler, W. Park, M. V. Purohit, R. M. White, J. R. Wilson, A. Randle-Conde, S. J. Sekula, M. Bellis, P. R. Burchat, T. S. Miyashita, E. M. T. Puccio, M. S. Alam, J. A. Ernst, R. Gorodeisky, N. Guttman, D. R. Peimer, A. Soffer, P. Lund, S. M. Spanier, J. L. Ritchie, A. M. Ruland, R. F. Schwitters, B. C. Wray, J. M. Izen, X. C. Lou, F. Bianchi, D. Gamba, S. Zambito, L. Lanceri, L. Vitale, F. Martinez-Vidal, A. Oyanguren, P. Villanueva-Perez, H. Ahmed, J. Albert, Sw. Banerjee, F. U. Bernlochner, H. H. F. Choi, G. J. King, R. Kowalewski, M. J. Lewczuk, I. M. Nugent, J. M. Roney, R. J. Sobie, N. Tasneem, T. J. Gershon, P. F. Harrison, T. E. Latham, H. R. Band, S. Dasu, Y. Pan, R. Prepost, S. L. Wu, National Science Foundation (US), Natural Sciences and Engineering Research Council of Canada, Federal Ministry of Education and Research (Germany), German Research Foundation, Istituto Nazionale di Fisica Nucleare, Ministerio de Ciencia e Innovación (España), Science and Technology Facilities Council (UK), United States-Israel Binational Science Foundation, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), BABAR, J. P., Lee, V., Poireau, V., Tisserand, J., Garra Tico, E., Grauge, A., Palano, G., Eigen, B., Stugu, D. N., Brown, A., George, L. T., Kerth, Kolomensky, Y. u. G., G., Lynch, U., Paudel, H., Koch, T., Schroeder, D. J., Asgeirsson, C., Hearty, T. S., Mattison, J. A., Mckenna, R. Y., So, A., Khan, V. E., Blinov, A. R., Buzykaev, V. P., Druzhinin, V. B., Golubev, E. A., Kravchenko, A. P., Onuchin, S. I., Serednyakov, Skovpen, Y. u. I., E. P., Solodov, Todyshev, K. Y. u., A. N., Yushkov, M., Bondioli, D., Kirkby, A. J., Lankford, M., Mandelkern, H., Atmacan, J. W., Gary, F., Liu, O., Long, G. M., Vitug, C., Campagnari, T. M., Hong, D., Kovalskyi, J. D., Richman, C. A., West, A. M., Eisner, J., Kroseberg, W. S., Lockman, A. J., Martinez, B. A., Schumm, A., Seiden, D. S., Chao, C. H., Cheng, B., Echenard, K. T., Flood, D. G., Hitlin, P., Ongmongkolkul, F. C., Porter, A. Y., Rakitin, R., Andreassen, Z., Huard, B. T., Meadow, M. D., Sokoloff, L., Sun, P. C., Bloom, W. T., Ford, A., Gaz, U., Nauenberg, J. G., Smith, S. R., Wagner, R., Ayad, W. H., Toki, B., Spaan, K. R., Schubert, R., Schwierz, D., Bernard, M., Verderi, P. J., Clark, S., Playfer, D., Bettoni, C., Bozzi, R., Calabrese, G., Cibinetto, E., Fioravanti, I., Garzia, E., Luppi, M., Munerato, L., Piemontese, V., Santoro, R., Baldini Ferroli, A., Calcaterra, R., de Sangro, G., Finocchiaro, P., Patteri, I. M., Peruzzi, M., Piccolo, M., Rama, A., Zallo, R., Contri, E., Guido, M., Lo Vetere, M. R., Monge, S., Passaggio, C., Patrignani, E., Robutti, B., Bhuyan, V., Prasad, C. L., Lee, M., Morii, A. J., Edward, A., Adametz, U., Uwer, H. M., Lacker, T., Lueck, P. D., Dauncey, U., Mallik, C., Chen, J., Cochran, W. T., Meyer, S., Prell, A. E., Rubin, A. V., Gritsan, Z. J., Guo, N., Arnaud, M., Davier, D., Derkach, G., Grosdidier, F., Le Diberder, A. M., Lutz, B., Malaescu, P., Roudeau, M. H., Schune, A., Stocchi, G., Wormser, D. J., Lange, D. M., Wright, C. A., Chavez, J. P., Coleman, J. R., Fry, E., Gabathuler, D. E., Hutchcroft, D. J., Payne, C., Touramani, A. J., Bevan, F., Di Lodovico, R., Sacco, M., Sigamani, G., Cowan, C. L., Davi, A. G., Denig, M., Fritsch, W., Gradl, K., Griessinger, A., Hafner, E., Prencipe, R. J., Barlow, G., Jackson, G. D., Lafferty, E., Behn, R., Cenci, B., Hamilton, A., Jawahery, D. A., Robert, C., Dallapiccola, R., Cowan, D., Dujmic, G., Sciolla, R., Cheaib, D., Lindemann, P. M., Patel, S. H., Robertson, P., Biassoni, N., Neri, F., Palombo, S., Stracka, L., Cremaldi, R., Godang, R., Kroeger, P., Sonnek, D. J., Summer, X., Nguyen, M., Simard, P., Tara, DE NARDO, Guglielmo, D., Monorchio, G., Onorato, Sciacca, Crisostomo, M., Martinelli, G., Raven, C. P., Jessop, J. M., Losecco, W. F., Wang, K., Honscheid, R., Ka, J., Brau, R., Frey, N. B., Sinev, D., Strom, E., Torrence, E., Feltresi, N., Gagliardi, M., Margoni, M., Morandin, M., Posocco, M., Rotondo, G., Simi, F., Simonetto, R., Stroili, S., Akar, E., Ben Haim, M., Bomben, G. 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L., Kocian, D. W. G. S., Leith, P., Lewi, B., Lindquist, S., Luitz, V., Luth, H. L., Lynch, D. B., Macfarlane, D. R., Muller, H., Neal, S., Nelson, M., Perl, T., Pulliam, B. N., Ratcliff, A., Roodman, A. A., Salnikov, R. H., Schindler, A., Snyder, D., Su, M. K., Sullivan, J., Va?vra, A. P., Wagner, W. J., Wisniewski, M., Wittgen, D. H., Wright, H. W., Wulsin, C. C., Young, V., Ziegler, W., Park, M. V., Purohit, R. M., White, J. R., Wilson, A., Randle Conde, S. J., Sekula, M., Belli, P. R., Burchat, T. S., Miyashita, E. M. T., Puccio, M. S., Alam, J. A., Ernst, R., Gorodeisky, N., Guttman, D. R., Peimer, A., Soffer, P., Lund, S. M., Spanier, J. L., Ritchie, A. M., Ruland, R. F., Schwitter, B. C., Wray, J. M., Izen, X. C., Lou, F., Bianchi, D., Gamba, S., Zambito, L., Lanceri, L., Vitale, F., Martinez Vidal, A., Oyanguren, P., Villanueva Perez, H., Ahmed, J., Albert, Banerjee, S. w., F. U., Bernlochner, H. H. F., Choi, G. J., King, R., Kowalewski, M. J., Lewczuk, I. M., Nugent, J. M., Roney, R. J., Sobie, N., Tasneem, T. J., Gershon, P. F., Harrison, T. E., Latham, H. R., Band, S., Dasu, Y., Pan, R., Prepost, S. L., Wu, Universitat de Barcelona, Lees, J, Poireau, V, Tisserand, V, Tico J., G, Grauges, E, Palano, A, Eigen, G, Stugu, B, Brown, D, Georges, A, Kerth, L, Kolomensky, Y, Lynch, G, Paudel, U, Koch, H, Schroeder, T, Asgeirsson, D, Hearty, C, Mattison, T, Mckenna, J, So, R, Khan, A, Blinov, V, Buzykaev, A, Druzhinin, V, Golubev, V, Kravchenko, E, Onuchin, A, Serednyakov, S, Skovpen, Y, Solodov, E, Todyshev, K, Yushkov, A, Bondioli, M, Kirkby, D, Lankford, A, Mandelkern, M, Atmacan, H, Gary, J, Liu, F, Long, O, Vitug, G, Campagnari, C, Hong, T, Kovalskyi, D, Richman, J, West, C, Eisner, A, Kroseberg, J, Lockman, W, Martinez, A, Schumm, B, Seiden, A, Chao, D, Cheng, C, Echenard, B, Flood, K, Hitlin, D, Ongmongkolkul, P, Porter, F, Rakitin, A, Andreassen, R, Huard, Z, Meadows, B, Sokoloff, M, Sun, L, Bloom, P, Ford, W, Gaz, A, Nauenberg, U, Smith, J, Wagner, S, Ayad, R, Toki, W, Spaan, B, Schubert, K, Schwierz, R, Bernard, D, Verderi, M, Clark, P, Playfer, S, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Munerato, M, Piemontese, L, Santoro, V, Baldini Ferroli, R, Calcaterra, A, de Sangro, R, Finocchiaro, G, Patteri, P, Peruzzi, I, Piccolo, M, Rama, M, Zallo, A, Contri, R, Guido, E, Lo Vetere, M, Monge, M, Passaggio, S, Patrignani, C, Robutti, E, Bhuyan, B, Prasad, V, Lee, C, Morii, M, Edwards, A, Adametz, A, Uwer, U, Lacker, H, Lueck, T, Dauncey, P, Mallik, U, Chen, C, Cochran, J, Meyer, W, Prell, S, Rubin, A, Gritsan, A, Guo, Z, Arnaud, N, Davier, M, Derkach, D, Grosdidier, G, Le Diberder, F, Lutz, A, Malaescu, B, Roudeau, P, Schune, M, Stocchi, A, Wormser, G, Lange, D, Wright, D, Chavez, C, Coleman, J, Fry, J, Gabathuler, E, Hutchcroft, D, Payne, D, Touramanis, C, Bevan, A, Di Lodovico, F, Sacco, R, Sigamani, M, Cowan, G, Davis, C, Denig, A, Fritsch, M, Gradl, W, Griessinger, K, Hafner, A, Prencipe, E, Barlow, R, Jackson, G, Lafferty, G, Behn, E, Cenci, R, Hamilton, B, Jawahery, A, Roberts, D, Dallapiccola, C, Cowan, R, Dujmic, D, Sciolla, G, Cheaib, R, Lindemann, D, Patel, P, Robertson, S, Biassoni, P, Neri, N, Palombo, F, Stracka, S, Cremaldi, L, Godang, R, Kroeger, R, Sonnek, P, Summers, D, Nguyen, X, Simard, M, Taras, P, De Nardo, G, Monorchio, D, Onorato, G, Sciacca, C, Martinelli, M, Raven, G, Jessop, C, Losecco, J, Wang, W, Honscheid, K, Kass, R, Brau, J, Frey, R, Sinev, N, Strom, D, Torrence, E, Feltresi, E, Gagliardi, N, Margoni, M, Morandin, M, Posocco, M, Rotondo, M, Simi, G, Simonetto, F, Stroili, R, Akar, S, Ben Haim, E, Bomben, M, Bonneaud, G, Briand, H, Calderini, G, Chauveau, J, Hamon, O, Leruste, P, Marchiori, G, Ocariz, J, Sitt, S, Biasini, M, Manoni, E, Pacetti, S, Rossi, A, Angelini, C, Batignani, G, Bettarini, S, Carpinelli, M, Casarosa, G, Cervelli, A, Forti, F, Giorgi, M, Lusiani, A, Oberhof, B, Paoloni, E, Perez, A, Rizzo, G, Walsh, J, Pegna D., L, Olsen, J, Smith, A, Telnov, A, Anulli, F, Faccini, R, Ferrarotto, F, Ferroni, F, Gaspero, M, Gioi L., L, Mazzoni, M, Piredda, G, Buenger, C, Gruenberg, O, Hartmann, T, Leddig, T, Voss, C, Waldi, R, Adye, T, Olaiya, E, Wilson, F, Emery, S, de Monchenault G., H, Vasseur, G, Yeche, C, Aston, D, Bard, D, Bartoldus, R, Benitez, J, Cartaro, C, Convery, M, Dorfan, J, Dubois Felsmann, G, Dunwoodie, W, Ebert, M, Field, R, Sevilla M., F, Fulsom, B, Gabareen, A, Graham, M, Grenier, P, Hast, C, Innes, W, Kelsey, M, Kim, P, Kocian, M, Leith, D, Lewis, P, Lindquist, B, Luitz, S, Luth, V, Lynch, H, Macfarlane, D, Muller, D, Neal, H, Nelson, S, Perl, M, Pulliam, T, Ratcliff, B, Roodman, A, Salnikov, A, Schindler, R, Snyder, A, Su, D, Sullivan, M, Va'Vra, J, Wagner, A, Wisniewski, W, Wittgen, M, Wulsin, H, Young, C, Ziegler, V, Park, W, Purohit, M, White, R, Wilson, J, Randle Conde, A, Sekula, S, Bellis, M, Burchat, P, Miyashita, T, Puccio, E, Alam, M, Ernst, J, Gorodeisky, R, Guttman, N, Peimer, D, Soffer, A, Lund, P, Spanier, S, Ritchie, J, Ruland, A, Schwitters, R, Wray, B, Izen, J, Lou, X, Bianchi, F, Gamba, D, Zambito, S, Lanceri, L, Vitale, L, Martinez Vidal, F, Oyanguren, A, Villanueva Perez, P, Ahmed, H, Albert, J, Banerjee, S, Bernlochner, F, Choi, H, King, G, Kowalewski, R, Lewczuk, M, Nugent, I, Roney, J, Sobie, R, Tasneem, N, Gershon, T, Harrison, P, Latham, T, Band, H, Dasu, S, Pan, Y, Prepost, R, Wu, S, J. G., Tico, Y. G., Kolomensky, Y. I., Skovpen, K. Y., Todyshev, R. d., Sangro, M. L., Vetere, F. L., Diberder, F. D., Lodovico, G. D., Nardo, C., Sciacca, P., Leruste, Lusiani, Alberto, D. L., Pegna, A. J., S., L. L., Gioi, C., Buenger, O., Gruenberg, C., Vo, G. H., De, C., Yeche, M. F., Sevilla, D. W., G., J., Va'Vra, E. M., T., S., Banerjee, H. H., F., G., De Nardo, C., Bünger, O., Grünberg, C., Voß, Yèche, C. h., J., Va’Vra, Lanceri, Livio, Vitale, Lorenzo, Lees, J. P., Poireau, V., Tisserand, V., Tico, J. Garra, Grauges, E., Palano, A., Eigen, G., Stugu, B., Brown, D. N., Georges, A., Kerth, L. T., Kolomensky, Yu. G., Lynch, G., Paudel, U., Koch, H., Schroeder, T., Asgeirsson, D. J., Hearty, C., Mattison, T. S., Mckenna, J. A., So, R. Y., Khan, A., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Yushkov, A. N., Bondioli, M., Kirkby, D., Lankford, A. J., Mandelkern, M., Atmacan, H., Gary, J. W., Liu, F., Long, O., Vitug, G. M., Campagnari, C., Hong, T. M., Kovalskyi, D., Richman, J. D., West, C. A., Eisner, A. M., Kroseberg, J., Lockman, W. S., Martinez, A. J., Schumm, B. A., Seiden, A., Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Ongmongkolkul, P., Porter, F. C., Rakitin, A. Y., Andreassen, R., Huard, Z., Meadows, B. T., Sokoloff, M. D., Sun, L., Bloom, P. C., Ford, W. T., Gaz, A., Nauenberg, U., Smith, J. G., Wagner, S. R., Ayad, R., Toki, W. H., Spaan, B., Schubert, K. R., Schwierz, R., Bernard, D., Verderi, M., Clark, P. J., Playfer, S., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Munerato, M., Piemontese, L., Santoro, V., Baldini-Ferroli, R., Calcaterra, A., de Sangro, R., Finocchiaro, G., Patteri, P., Peruzzi, I. M., Piccolo, M., Rama, M., Zallo, A., Contri, R., Guido, E., Lo Vetere, M., Monge, M. R., Passaggio, S., Patrignani, C., Robutti, E., Bhuyan, B., Prasad, V., Lee, C. L., Morii, M., Edwards, A. J., Adametz, A., Uwer, U., Lacker, H. M., Lueck, T., Dauncey, P. D., Mallik, U., Chen, C., Cochran, J., Meyer, W. T., Prell, S., Rubin, A. E., Gritsan, A. V., Guo, Z. J., Arnaud, N., Davier, M., Derkach, D., Grosdidier, G., Le Diberder, F., Lutz, A. M., Malaescu, B., Roudeau, P., Schune, M. H., Stocchi, A., Wormser, G., Lange, D. J., Wright, D. M., Chavez, C. A., Coleman, J. P., Fry, J. R., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Sigamani, M., Cowan, G., Davis, C. L., Denig, A. G., Fritsch, M., Gradl, W., Griessinger, K., Hafner, A., Prencipe, E., Barlow, R. J., Jackson, G., Lafferty, G. D., Behn, E., Cenci, R., Hamilton, B., Jawahery, A., Roberts, D. A., Dallapiccola, C., Cowan, R., Dujmic, D., Sciolla, G., Cheaib, R., Lindemann, D., Patel, P. M., Robertson, S. H., Biassoni, P., Neri, N., Palombo, F., Stracka, S., Cremaldi, L., Godang, R., Kroeger, R., Sonnek, P., Summers, D. J., Nguyen, X., Simard, M., Taras, P., De Nardo, G., Monorchio, D., Onorato, G., Sciacca, C., Martinelli, M., Raven, G., Jessop, C. P., Losecco, J. M., Wang, W. F., Honscheid, K., Kass, R., Brau, J., Frey, R., Sinev, N. B., Strom, D., Torrence, E., Feltresi, E., Gagliardi, N., Margoni, M., Morandin, M., Posocco, M., Rotondo, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Briand, H., Calderini, G., Chauveau, J., Hamon, O., Leruste, Ph., Marchiori, G., Ocariz, J., Sitt, S., Biasini, M., Manoni, E., Pacetti, S., Rossi, A., Angelini, C., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Cervelli, A., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Perez, A., Rizzo, G., Walsh, J. J., Pegna, D. Lope, Olsen, J., Smith, A. J. S., Telnov, A. V., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Gaspero, M., Gioi, L. Li, Mazzoni, M. A., Piredda, G., Buenger, C., Gruenberg, O., Hartmann, T., Leddig, T., Voss, C., Waldi, R., Adye, T., Olaiya, E. O., Wilson, F. F., Emery, S., de Monchenault, G. Hamel, Vasseur, G., Yeche, Ch., Aston, D., Bard, D. J., Bartoldus, R., Benitez, J. F., Cartaro, C., Convery, M. R., Dorfan, J., Dubois-Felsmann, G. P., Dunwoodie, W., Ebert, M., Field, R. C., Sevilla, M. Franco, Fulsom, B. G., Gabareen, A. M., Graham, M. T., Grenier, P., Hast, C., Innes, W. R., Kelsey, M. H., Kim, P., Kocian, M. L., Leith, D. W. G. S., Lewis, P., Lindquist, B., Luitz, S., Luth, V., Lynch, H. L., Macfarlane, D. B., Muller, D. R., Neal, H., Nelson, S., Perl, M., Pulliam, T., Ratcliff, B. N., Roodman, A., Salnikov, A. A., Schindler, R. H., Snyder, A., Su, D., Sullivan, M. K., Va'Vra, J., Wagner, A. P., Wisniewski, W. J., Wittgen, M., Wright, D. H., Wulsin, H. W., Young, C. C., Ziegler, V., Park, W., Purohit, M. V., White, R. M., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Bellis, M., Burchat, P. R., Miyashita, T. S., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Lund, P., Spanier, S. M., Ritchie, J. L., Ruland, A. M., Schwitters, R. F., Wray, B. C., Izen, J. M., Lou, X. C., Bianchi, F., Gamba, D., Zambito, S., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Villanueva-Perez, P., Ahmed, H., Albert, J., Banerjee, Sw., Bernlochner, F. U., Choi, H. H. F., King, G. J., Kowalewski, R., Lewczuk, M. J., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Band, H. R., Dasu, S., Pan, Y., Prepost, R., Wu, S. L., Collaboration, Babar, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Quark, Particle physics, Nuclear and High Energy Physics, Meson, Electron–positron annihilation, Scalar (mathematics), FOS: Physical sciences, Quarkonium, Photon energy, 01 natural sciences, Supersymmetric model, Standard Model, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, Higgs bosons, 010308 nuclear & particles physics, PACS: 14.80.Da, 12.60.Fr, 12.60.Jv, 13.20.Gd, High Energy Physics::Phenomenology, BABAR detector, Extensions of electroweak Higgs sector, HEP, Supersymmetric models, Decays of J/psi Upsilon and other quarkonia, Bosons de Higgs, BaBar, Higgs boson, Leptonic decays, Física nuclear, High Energy Physics::Experiment, Física de partícules, Experiments
Abstract

We search for a low-mass scalar CP-odd Higgs boson, A(0), produced in the radiative decay of the upsilon resonance and decaying into a tau(+)tau(-) pair: Y(1S) -> gamma A(0). The production of Y(1S) mesons is tagged by Y(2S) -> pi(+)pi(-) Y(1S) transitions, using a sample of (98.3 +/- 0.9) x 10(6) Y(2S) mesons collected by the BABAR detector. We find no evidence for a Higgs boson in the mass range 3: 5, We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MICIIN (Spain), and STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union), the A. P. Sloan Foundation (USA) and the Binational Science Foundation (USA-Israel).

Published
2013

50. 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

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