Passer à la navigation principale Passer à la recherche Passer au contenu principal

Improved search for B0s - B̄0s oscillations: The ALEPH Collaboration

  • A. Heister
  • , S. Schael
  • , R. Barate
  • , I. De Bonis
  • , D. Decamp
  • , C. Goy
  • , J. P. Lees
  • , E. Merle
  • , M. N. Minard
  • , B. Pietrzyk
  • , G. Boix
  • , S. Bravo
  • , M. P. Casado
  • , M. Chmeissani
  • , J. M. Crespo
  • , E. Fernandez
  • , M. Fernandez-Bosman
  • , Ll Garrido
  • , E. Grauǵes
  • , M. Martinez
  • G. Merino, R. Miquel, Ll M. Mir, A. Pacheco, H. Ruiz, A. Colaleo, D. Creanza, M. de Palma, G. Iaselli, G. Maggi, M. Maggi, S. Nuzzo, A. Ranieri, G. Raso, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, A. Tricomi, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, D. Abbaneo, P. Azzurri, O. Buchmüller, M. Cattaneo, F. Cerutti, B. Clerbaux, H. Drevermann, R. W. Forty, M. Frank, F. Gianotti, T. C. Greening, J. B. Hansen, J. Harvey, D. E. Hutchcroft, P. Janot, B. Jost, M. Kado, P. Mato, A. Moutoussi, F. Ranjard, L. Rolandi, D. Schlatter, O. Schneider, G. Sguazzoni, W. Tejessy, F. Teubert, A. Valassi, I. Videau, J. Ward, F. Badaud, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, S. Monteil, C. J. Montret, D. Pallin, P. Perret, J. D. Hansen, J. R. Hansen, P. H. Hansen, B. S. Nilsson, A. Kyriakis, C. Markou, E. Simopoulou, A. Vayaki, K. Zachariadou, A. Blondel, G. Bonneaud, J. C. Brient, A. Rougé, M. Rumpf, M. Swynghedauw, M. Verderi, H. Videau, V. Ciulli, E. Focardi, G. Parrini, A. Antonelli, M. Antonelli, G. Bencivenni, F. Bossi, P. Campana, G. Capon, V. Chiarella, P. Laurelli, G. Mannocchi, F. Murtas, G. P. Murtas, L. Passalacqua, M. Pepe-Altarelli, A. Halley, J. G. Lynch, P. Negus, V. O'Shea, C. Raine, A. S. Thompson, S. Wasserbaech, R. Cavanaugh, S. Dhamotharan, C. Geweniger, P. Hanke, V. Hepp, E. E. Kluge, A. Putzer, H. Stenzel, K. Tittel, M. Wunsch, R. Beuselinck, D. M. Binnie, W. Cameron, P. J. Dornan, M. Girone, N. Marinelli, J. K. Sedgbeer, J. C. Thompson, V. M. Ghete, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, E. Bouhova-Thacker, C. K. Bowdery, A. J. Finch, F. Foster, G. Hughes, R. W.L. Jones, M. R. Pearson, N. A. Robertson, K. Jakobs, K. Kleinknecht, G. Quast, B. Renk, H. G. Sander, H. Wachsmuth, C. Zeitnitz, A. Bonissent, P. Coyle, O. Leroy, P. Payre, D. Rousseau, M. Talby, F. Ragusa, A. David, H. Dietl, G. Ganis, K. Hüttmann, G. Lütjens, W. Männer, H. G. Moser, R. Settles, W. Wiedenmann, G. Wolf, J. Boucrot, O. Callot, M. Davier, L. Duflot, J. F. Grivaz, Ph Heusse, A. Jacholkowska, J. Lefrançois, J. J. Veillet, C. Yuan, G. Bagliesi, T. Boccali, L. Foà, A. Giammanco, A. Giassi, F. Ligabue, A. Messineo, F. Palla, G. Sanguinetti, A. Sciabà, P. Spagnolo, R. Tenchini, A. Venturi, P. G. Verdini, Z. Xie, G. A. Blair, G. Cowan, M. G. Green, T. Medcalf, A. Misiejuk, J. A. Strong, P. Teixeira-Dias, R. W. Clifft, T. R. Edgecock, P. R. Norton, I. R. Tomalin, B. Bloch-Devaux, P. Colas, S. Emery, W. Kozanecki, E. Lançon, M. C. Lemaire, E. Locci, P. Perez, J. Rander, J. F. Renardy, A. Roussarie, J. P. Schuller, J. Schwindling, A. Trabelsi, B. Vallage, N. Konstantinidis, A. M. Litke, G. Taylor, C. N. Booth, S. Cartwright, F. Combley, M. Lehto, L. F. Thompson, K. Affholderbach, A. Böhrer, S. Brandt, C. Grupen, A. Ngac, G. Prange, U. Sieler, G. Giannini, J. Rothberg, S. R. Armstrong, K. Berkelman, K. Cranmer, D. P.S. Ferguson, Y. Gao, S. González, O. J. Hayes, H. Hu, S. Jin, J. Kile, P. A. McNamara, J. Nielsen, Y. B. Pan, J. H. von Wimmersperg-Toeller, W. Wiedenmann, J. Wu, Sau Lan Wu, X. Wu, G. Zobernig, G. Dissertori
  • RWTH Aachen University
  • Université Paris-Sud
  • University of São Paulo
  • McKinsey and Compagny
  • University of Barcelona
  • INFN Sezione di Bari
  • Ernest Orlando Lawrence Berkeley National Laboratory
  • University of Palermo
  • INFN Sezione di Catania
  • Institute of High Energy Physics, Chinese Academy of Sciences
  • European Organization for Nuclear Research
  • Stanford Linear Accelerator Center
  • Allied Signal Inc.
  • Fermi National Accelerator Laboratory
  • University of Lausanne
  • Université Blaise Pascal
  • University of Montpellier (UMR MiVEGEC)
  • Niels Bohr Institutet
  • NCSR Demokritos
  • University of Geneva
  • University of Florence
  • LNF-INFN
  • Ev-K2-CNR Committee
  • University of Glasgow
  • Haverford College
  • University of Heidelberg
  • SAP AG
  • Imperial College London
  • University of Innsbruck
  • Lancaster University
  • Johannes Gutenberg University
  • Universität Karlsruhe/Forschungszentrum Karlsruhe
  • Aix-Marseille Université
  • Sezione INFN di Milano
  • Max-Planck-Institut für Physik
  • University of Rome “Tor Vergata”
  • Laboratoire de l'Accélérateur Linéaire
  • Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
  • Royal Holloway University of London
  • Rutherford Appleton Laboratory
  • CEA, Irfu, SPP
  • Campus Universitaire
  • University of California at Santa Cruz
  • The University of Sheffield
  • Universität Siegen
  • Swissair Navigation Services
  • University of Trieste
  • University of Washington
  • University of Wisconsin-Madison
  • Tsinghua University
  • ETH Zurich

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

14 Citations (Scopus)

Résumé

An improved search for B0s oscillations is performed in the ALEPH data sample collected during the first phase of LEP, and reprocessed in 1998. Three analyses based on complementary event selections are presented. First, decays of B0s mesons into hadronic flavour eigenstates are fully reconstructed. This selection yields a small sample of candidates with excellent decay length and momentum resolution and high average B0s purity. Semileptonic decays with a reconstructed D-s meson provide a second sample with larger statistics, high average B0s purity, but a poorer momentum and decay length resolution due to the partial decay reconstruction. Finally, semileptonic b-hadron decays are inclusively selected and yield the data sample with the highest sensitivity to B0s oscillations, as the much higher statistics compensate for the low average B0s purity and poorer time resolution. A lower limit is set at Δms > 10.9ps-1 at 95%C.L., significantly lower than the expected limit of 15.2 ps-1.

langue originaleAnglais
Pages (de - à)143-170
Nombre de pages28
journalEuropean Physical Journal C
Volume29
Numéro de publication2
Les DOIs
étatPublié - 1 janv. 2003

Empreinte digitale

Examiner les sujets de recherche de « Improved search for B0s - B̄0s oscillations: The ALEPH Collaboration ». Ensemble, ils forment une empreinte digitale unique.

Contient cette citation