Pàgina inicial > CERN Experiments > LEP Experiments > ALEPH > ALEPH Theses > Measurement of the Cross Section for open b-Quark Production in Two-Photon Interactions at LEP |
Article | |
Report number | arXiv:0706.3150 ; CERN-PH-EP-2007-020 ; CERN-PH-EP-2007-020 |
Title | Measurement of the Cross Section for open b-Quark Production in Two-Photon Interactions at LEP |
Related title | CROSS-SECTION B QUARK TWO PHOTON |
Author(s) |
Schael, S. (Aachen, Tech. Hochsch.) ; Barate, R. (Annecy, LAPP) ; Bruneliere, R. (Annecy, LAPP) ; De Bonis, I. (Annecy, LAPP) ; Decamp, D. (Annecy, LAPP) ; Goy, C. (Annecy, LAPP) ; Jezequel, S. (Annecy, LAPP) ; Lees, J.-P. (Annecy, LAPP) ; Martin, F. (Annecy, LAPP) ; Merle, E. (Annecy, LAPP) ; Minard, M.-N. (Annecy, LAPP) ; Pietrzyk, B. (Annecy, LAPP) ; Trocme, B. (Annecy, LAPP) ; Bravo, S. (Barcelona, IFAE) ; Casado, M.P. (Barcelona, IFAE) ; Chmeissani, M. (Barcelona, IFAE) ; Crespo, J.M. (Barcelona, IFAE) ; Fernandez, E. (Barcelona, IFAE) ; Fernandez-Bosman, M. (Barcelona, IFAE) ; Garrido, Ll. (Barcelona, IFAE) ; Martinez, M. (Barcelona, IFAE) ; Pacheco, A. (Barcelona, IFAE) ; Ruiz, H. (Barcelona, IFAE) ; Colaleo, A. (Bari U. ; INFN, Bari) ; Creanza, D. (Bari U. ; INFN, Bari) ; De Filippis, N. (Bari U. ; INFN, Bari) ; de Palma, M. (Bari U. ; INFN, Bari) ; Iaselli, G. (Bari U. ; INFN, Bari) ; Maggi, G. (Bari U. ; INFN, Bari) ; Maggi, M. (Bari U. ; INFN, Bari) ; Nuzzo, S. (Bari U. ; INFN, Bari) ; Ranieri, A. (Bari U. ; INFN, Bari) ; Raso, G. (Bari U. ; INFN, Bari) ; Ruggieri, F. (Bari U. ; INFN, Bari) ; Selvaggi, G. (Bari U. ; INFN, Bari) ; Silvestris, L. (Bari U. ; INFN, Bari) ; Tempesta, P. (Bari U. ; INFN, Bari) ; Tricomi, A. (Bari U. ; INFN, Bari) ; Zito, G. (Bari U. ; INFN, Bari) ; Huang, X. (Beijing, Inst. High Energy Phys.) ; Lin, J. (Beijing, Inst. High Energy Phys.) ; Ouyang, Q. (Beijing, Inst. High Energy Phys.) ; Wang, T. (Beijing, Inst. High Energy Phys.) ; Xie, Y. (Beijing, Inst. High Energy Phys.) ; Xu, R. (Beijing, Inst. High Energy Phys.) ; Xue, S. (Beijing, Inst. High Energy Phys.) ; Zhang, J. (Beijing, Inst. High Energy Phys.) ; Zhang, L. (Beijing, Inst. High Energy Phys.) ; Zhao, W. (Beijing, Inst. High Energy Phys.) ; Abbaneo, D. (CERN) ; Barklow, T. (CERN) ; Buchmuller, O. (CERN) ; Cattaneo, M. (CERN) ; Clerbaux, B. (CERN) ; Drevermann, H. (CERN) ; Forty, R.W. (CERN) ; Frank, M. (CERN) ; Gianotti, F. (CERN) ; Hansen, J.B. (CERN) ; Harvey, J. (CERN) ; Hutchcroft, D.E. (CERN) ; Janot, P. (CERN) ; Jost, B. (CERN) ; Kado, M. (CERN) ; Mato, P. (CERN) ; Moutoussi, A. (CERN) ; Ranjard, F. (CERN) ; Rolandi, L. (CERN) ; Schlatter, D. (CERN) ; Teubert, F. (CERN) ; Valassi, A. (CERN) ; Videau, I. (CERN) ; Badaud, F. (Clermont-Ferrand U.) ; Dessagne, S. (Clermont-Ferrand U.) ; Falvard, A. (Clermont-Ferrand U.) ; Fayolle, D. (Clermont-Ferrand U.) ; Gay, P. (Clermont-Ferrand U.) ; Jousset, J. (Clermont-Ferrand U.) ; Michel, B. (Clermont-Ferrand U.) ; Monteil, S. (Clermont-Ferrand U.) ; Pallin, D. (Clermont-Ferrand U.) ; Pascolo, J.M. (Clermont-Ferrand U.) ; Perret, P. (Clermont-Ferrand U.) ; Hansen, J.D. (Bohr Inst.) ; Hansen, J.R. (Bohr Inst.) ; Hansen, P.H. (Bohr Inst.) ; Kraan, A.C. (Bohr Inst.) ; Nilsson, B.S. (Bohr Inst.) ; Kyriakis, A. (Democritos Nucl. Res. Ctr.) ; Markou, C. (Democritos Nucl. Res. Ctr.) ; Simopoulou, E. (Democritos Nucl. Res. Ctr.) ; Vayaki, A. (Democritos Nucl. Res. Ctr.) ; Zachariadou, K. (Democritos Nucl. Res. Ctr.) ; Blondel, A. (Ecole Polytechnique) ; Brient, J.-C. (Ecole Polytechnique) ; Machefert, F. (Ecole Polytechnique) ; Rouge, A. (Ecole Polytechnique) ; Videau, H. (Ecole Polytechnique) ; Ciulli, V. (Florence U. ; INFN, Florence) ; Focardi, E. (Florence U. ; INFN, Florence) ; Parrini, G. (Florence U. ; INFN, Florence) ; Antonelli, A. (Frascati) ; Antonelli, M. (Frascati) ; Bencivenni, G. (Frascati) ; Bossi, F. (Frascati) ; Capon, G. (Frascati) ; Cerutti, F. (Frascati) ; Chiarella, V. (Frascati) ; Laurelli, P. (Frascati) ; Mannocchi, G. (Frascati) ; Murtas, G.P. (Frascati) ; Passalacqua, L. (Frascati) ; Kennedy, J. (Glasgow U.) ; Lynch, J.G. (Glasgow U.) ; Negus, P. (Glasgow U.) ; O'Shea, V. (Glasgow U.) ; Thompson, A.S. (Glasgow U.) ; Wasserbaech, S. (Utah Valley U.) ; Cavanaugh, R. (Kirchhoff Inst. Phys.) ; Dhamotharan, S. (Kirchhoff Inst. Phys.) ; Geweniger, C. (Kirchhoff Inst. Phys.) ; Hanke, P. (Kirchhoff Inst. Phys.) ; Hepp, V. (Kirchhoff Inst. Phys.) ; Kluge, E.E. (Kirchhoff Inst. Phys.) ; Putzer, A. (Kirchhoff Inst. Phys.) ; Stenzel, H. (Kirchhoff Inst. Phys.) ; Tittel, K. (Kirchhoff Inst. Phys.) ; Wunsch, M. (Kirchhoff Inst. Phys.) ; Beuselinck, R. (Imperial Coll., London) ; Cameron, W. (Imperial Coll., London) ; Davies, G. (Imperial Coll., London) ; Dornan, P.J. (Imperial Coll., London) ; Girone, M. (Imperial Coll., London) ; Marinelli, N. (Imperial Coll., London) ; Nowell, J. (Imperial Coll., London) ; Rutherford, S.A. (Imperial Coll., London) ; Sedgbeer, J.K. (Imperial Coll., London) ; Thompson, J.C. (Imperial Coll., London) ; White, R. (Imperial Coll., London) ; Ghete, V.M. (Innsbruck U.) ; Girtler, P. (Innsbruck U.) ; Kneringer, E. (Innsbruck U.) ; Kuhn, D. (Innsbruck U.) ; Rudolph, G. (Innsbruck U.) ; Bouhova-Thacker, E. (Lancaster U.) ; Bowdery, C.K. (Lancaster U.) ; Clarke, D.P. (Lancaster U.) ; Ellis, G. (Lancaster U.) ; Finch, A.J. (Lancaster U.) ; Foster, F. (Lancaster U.) ; Hughes, G. (Lancaster U.) ; Jones, R.W.L. (Lancaster U.) ; Pearson, M.R. (Lancaster U.) ; Robertson, N.A. (Lancaster U.) ; Sloan, T. (Lancaster U.) ; Smizanska, M. (Lancaster U.) ; van der Aa, O. (Louvain U., Inst. Phys. Nucl.) ; Delaere, C. (Louvain U., Inst. Phys. Nucl.) ; Leibenguth, G. (Louvain U., Inst. Phys. Nucl.) ; Lemaitre, V. (Louvain U., Inst. Phys. Nucl.) ; Blumenschein, U. (Mainz U., Inst. Phys.) ; Holldorfer, F. (Mainz U., Inst. Phys.) ; Jakobs, K. (Mainz U., Inst. Phys.) ; Kayser, F. (Mainz U., Inst. Phys.) ; Muller, A.-S. (Mainz U., Inst. Phys.) ; Renk, B. (Mainz U., Inst. Phys.) ; Sander, H.-G. (Mainz U., Inst. Phys.) ; Schmeling, S. (Mainz U., Inst. Phys.) ; Wachsmuth, H. (Mainz U., Inst. Phys.) ; Zeitnitz, C. (Mainz U., Inst. Phys.) ; Ziegler, T. (Mainz U., Inst. Phys.) ; Bonissent, A. (Marseille, CPPM) ; Coyle, P. (Marseille, CPPM) ; Curtil, C. (Marseille, CPPM) ; Ealet, A. (Marseille, CPPM) ; Fouchez, D. (Marseille, CPPM) ; Payre, P. (Marseille, CPPM) ; Tilquin, A. (Marseille, CPPM) ; Ragusa, F. (Milan U. ; INFN, Milan) ; David, A. (Munich, Max Planck Inst.) ; Dietl, H. (Munich, Max Planck Inst.) ; Ganis, G. (Munich, Max Planck Inst.) ; Huttmann, K. (Munich, Max Planck Inst.) ; Lutjens, G. (Munich, Max Planck Inst.) ; Manner, W. (Munich, Max Planck Inst.) ; Moser, H.-G. (Munich, Max Planck Inst.) ; Settles, R. (Munich, Max Planck Inst.) ; Villegas, M. (Munich, Max Planck Inst.) ; Wolf, G. (Munich, Max Planck Inst.) ; boucrot, J. (Orsay, LAL) ; Callot, O. (Orsay, LAL) ; Davier, M. (Orsay, LAL) ; Duflot, L. (Orsay, LAL) ; Grivaz, J.-F. (Orsay, LAL) ; Heusse, Ph. (Orsay, LAL) ; Jacholkowska, A. (Orsay, LAL) ; Serin, L. (Orsay, LAL) ; Veillet, J.-J. (Orsay, LAL) ; Azzurri, P. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Bagliesi, Giuseppe (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Boccali, T. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Foa, L. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Giammanco, A. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Giassi, A. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Ligabue, F. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Messineo, A. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Palla, F. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Sanguinetti, G. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Sciaba, A. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Sguazzoni, G. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Spagnolo, P. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Tenchini, R. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Venturi, A. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Verdini, P.G. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Awunor, O. (Royal Holloway, U. of London) ; Blair, G.A. (Royal Holloway, U. of London) ; Cowan, G. (Royal Holloway, U. of London) ; Garcia-Bellido, A. (Royal Holloway, U. of London) ; Green, M.G. (Royal Holloway, U. of London) ; Medcalf, T. (Royal Holloway, U. of London) ; Misiejuk, A. (Royal Holloway, U. of London) ; Strong, J.A. (Royal Holloway, U. of London) ; Teixeira-Dias, P. (Royal Holloway, U. of London) ; Clifft, R.W. (Rutherford) ; Edgecock, T.R. (Rutherford) ; Norton, P.R. (Rutherford) ; Tomalin, I.R. (Rutherford) ; Ward, J.J. (Rutherford) ; Bloch-Devaux, Brigitte (DAPNIA, Saclay) ; Boumediene, D. (DAPNIA, Saclay) ; Colas, P. (DAPNIA, Saclay) ; Fabbro, B. (DAPNIA, Saclay) ; Lancon, E. (DAPNIA, Saclay) ; Lemaire, M.-C. (DAPNIA, Saclay) ; Locci, E. (DAPNIA, Saclay) ; Perez, P. (DAPNIA, Saclay) ; Rander, J. (DAPNIA, Saclay) ; Tuchming, B. (DAPNIA, Saclay) ; Vallage, B. (DAPNIA, Saclay) ; Litke, A.M. (UC, Santa Cruz) ; Taylor, G. (UC, Santa Cruz) ; Booth, C.N. (Sheffield U.) ; Cartwright, S. (Sheffield U.) ; Combley, F. (Sheffield U.) ; Hodgson, P.N. (Sheffield U.) ; Lehto, M. (Sheffield U.) ; Thompson, L.F. (Sheffield U.) ; Bohrer, A. (Siegen U.) ; Brandt, S. (Siegen U.) ; Grupen, C. (Siegen U.) ; Hess, J. (Siegen U.) ; Ngac, A. (Siegen U.) ; Prange, G. (Siegen U.) ; Borean, C. (Trieste U. ; INFN, Trieste) ; Giannini, G. (Trieste U. ; INFN, Trieste) ; He, H. (Washington U., Seattle) ; Putz, J. (Washington U., Seattle) ; Rothberg, J. (Washington U., Seattle) ; Armstrong, S.R. (Wisconsin U., Madison) ; Berkelman, K. (Wisconsin U., Madison) ; Cranmer, K. (Wisconsin U., Madison) ; Ferguson, D.P.S. (Wisconsin U., Madison) ; Gao, Y. (Wisconsin U., Madison) ; Gonzalez, S. (Wisconsin U., Madison) ; alez (Wisconsin U., Madison) ; Hayes, O.J. (Wisconsin U., Madison) ; Hu, H. (Wisconsin U., Madison) ; Jin, S. (Wisconsin U., Madison) ; Kile, J. (Wisconsin U., Madison) ; McNamara, P.A., III (Wisconsin U., Madison) ; Nielsen, J. (Wisconsin U., Madison) ; Pan, Y.B. (Wisconsin U., Madison) ; von Wimmersperg-Toeller, J.H. (Wisconsin U., Madison) ; Wiedenmann, W. (Wisconsin U., Madison) ; Wu, J. (Wisconsin U., Madison) ; Wu, Sau Lan (Wisconsin U., Madison) ; Wu, X. (Wisconsin U., Madison) ; Zobernig, G. (Wisconsin U., Madison) ; Dissertori, G. (Zurich, ETH) |
Affiliation | (Physikalisches Institut der RWTH-Aachen, Germany) ; (Laboratoire de Physique des Particules (LAPP), IN2P3-CNRS, France) ; (Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, Spain) ; (Dipartimento di Fisica, INFN Sezione di Bari, Italy) ; (Institute of High Energy Physics, Academia Sinica, Beijing, The People's Republic of China) ; (CERN) ; (Laboratoire de Physique Corpusculaire, Universite Blaise Pascal, IN2P3-CNRS, Clermont-Ferrand, France) ; (Niels Bohr Institute, Copenhagen, Denmark) ; (Nuclear Research Center Demokritos (NRCD), Greece) ; (Laoratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, France) ; (Dipartimento di Fisica, Universita di Firenze, INFN Sezione di Firenze, Italy) ; (Laboratori Nazionali dell'INFN, Italy) ; (Department of Physics and Astronomy, University of Glasgow, Glasgow, UK) ; (Utah Valley State College, Orem, USA) ; (Kirchhoff-Institut fur Physik, Universitat Heidelberg, Germany) ; (Department of Physics, Imperial College, London, UK) ; (Institut fur Experimentalphysik, Universitat Innsbruck, Austria) ; (Department of Physics, University of Lancaster, Lancaster, UK) ; (Institut de Physique Nucleaire, Departement de Physique, Universite Catholique de Louvain, Louvain-la-Neuve, Belgium) ; (Institut fur Physik, Universitat Mainz, German) ; (CPPM, Marseille) ; (Dipartimento di Fisica, Univ. Milano e INFN Sezione di Milano, Italy) ; (Max-Planck-Institut fur Physik, Werner-Heisenberg-Institut, Munchen, Germany) ; (Laboratoire de l'Accelerateur Lineaire, Universite de Paris-Sud, IN2P3-CNRS, France) ; (Dipartimento di Fisica dell' Universita, INFN Sezione di Pisa, e Pisa, Scuola Normale Superiore) ; (Department of Physics, Royal Holloway & Bedford New College, University of London, Egham, Surrey, UK) ; (Particle Physics Dept., Rutherford Appleton Laboratory, Chilton, Didcot, UK) ; (CEA, DAPNIA/Service de Physique des Particules, CE-Saclay, Franc) ; (Institute for Particle Physics, University of California at Santa Cruz, Santa Cruz, USA) ; (Department of Physics, University of Sheffield, Sheffield, UK) ; (Fachbereich Physik, Universitat Siegen, Germany) ; (Dipartimento di Fisica, Universita di Trieste e INFN Sezione di Trieste, Italy) ; (Experimental Elementary Particle Physics, University of Washington, Seattle, USA) ; (Institute for Particle Physics, ETH Hoonggerberg, Zurich, Switzerland) |
Publication | 2007 |
Imprint | 20 Jun 2007 |
Number of pages | 15 |
Series | (ALEPH Papers) |
Note | 15 pages, 8 figures. Submitted to JHEP |
In: | JHEP 09 (2007) 102 |
DOI | 10.1088/1126-6708/2007/09/102 |
Subject category | Particle Physics - Experiment |
Accelerator/Facility, Experiment | CERN LEP ; ALEPH |
Abstract | Inclusive \beauty-quark production in two-photon collisions has been measured at LEP using an integrated luminosity of $698\mathrm{pb}^{-1}\,$ collected by the ALEPH detector with $\sqrt{s}$ between 130 and 209 \GeV . The b quarks were identified using lifetime information. The cross section is found to be \[ \mathrm{ \sigma(e^+ e^- \rightarrow e^+ e^- b \bar{b}\, X) = (5.4\pm 0.8\,_{stat} \pm 0.8\,_{syst}} )\,\mathrm{pb},\] which is consistent with Next-to-Leading Order QCD. |
Copyright/License | Open Access |