| Article | |
| Report number | arXiv:0707.0404 ; CERN-PH-EP-2007-019 ; CERN-PH-EP-2007-019 |
| Title | Search for Dirac Magnetic Monopoles in $e^{+}e^{-}$ Collisions with the OPAL Detector at LEP2 |
| Related title | LEP-2 |
| Author(s) |
Abbiendi, G. (Bologna U. ; INFN, Bologna) ; Ainsley, C. (Cambridge U.) ; Akesson, P.F. (CERN) ; Alexander, G. (Tel Aviv U.) ; Anagnostou, G. (Birmingham U.) ; Anderson, K.J. (Chicago U., EFI ; Chicago U.) ; Asai, S. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Axen, D. (British Columbia U.) ; Bailey, I. (Victoria U.) ; Barberio, E. (CERN) ; Barillari, T. (Munich, Max Planck Inst.) ; Barlow, R.J. (Manchester U.) ; Batley, R.J. (Cambridge U.) ; Bechtle, P. (Hamburg U. ; DESY) ; Behnke, T. (Hamburg U. ; DESY) ; Bell, K.W. (Rutherford) ; Bell, P.J. (Birmingham U.) ; Bella, G. (Tel Aviv U.) ; Bellerive, A. (Ottawa Carleton Inst. Phys. ; Carleton U.) ; Benelli, G. (UC, Riverside) ; Bethke, S. (Munich, Max Planck Inst.) ; Biebel, O. (Munich U.) ; Boeriu, O. (Freiburg U.) ; Bock, P. (Heidelberg U.) ; Boutemeur, M. (Munich U.) ; Braibant, S. (Bologna U. ; INFN, Bologna) ; Brown, R.M. (Rutherford) ; Burckhart, H.J. (CERN) ; Campana, S. (UC, Riverside) ; Capiluppi, P. (Bologna U. ; INFN, Bologna) ; Carnegie, R.K. (Ottawa Carleton Inst. Phys. ; Carleton U.) ; Carter, A.A. (Queen Mary, U. of London) ; Carter, J.R. (Cambridge U.) ; Chang, C.Y. (Maryland U.) ; Charlton, D.G. (Birmingham U.) ; Ciocca, C. (Bologna U. ; INFN, Bologna) ; Cozzi, M. (Bologna U. ; INFN, Bologna) ; Csilling, A. (Budapest, RMKI) ; Cuffiani, M. (Bologna U. ; INFN, Bologna) ; Dado, S. (Technion) ; Dallavalle, G.M. (Bologna U. ; INFN, Bologna) ; De Roeck, A. (CERN) ; De Wolf, E.A. (CERN) ; Desch, K. (Hamburg U. ; DESY) ; Dienes, B. (Debrecen, Inst. Nucl. Res.) ; Dubbert, J. (Munich U.) ; Duchovni, E. (Weizmann Inst.) ; Duckeck, G. (Munich U.) ; Duerdoth, I.P. (Manchester U.) ; Etzion, E. (Tel Aviv U.) ; Fabbri, F. (Bologna U. ; INFN, Bologna) ; Ferrari, P. (CERN) ; Fiedler, F. (Munich U.) ; Fleck, I. (Freiburg U.) ; Ford, M. (Manchester U.) ; Frey, A. (CERN) ; Gagnon, P. (Indiana U.) ; Gary, J.W. (UC, Riverside) ; Geich-Gimbel, C. (Bonn U.) ; Giacomelli, G. (Bologna U. ; INFN, Bologna) ; Giacomelli, P. (Bologna U. ; INFN, Bologna) ; Giunta, M. (UC, Riverside) ; Goldberg, J. (Technion) ; Gross, E. (Weizmann Inst.) ; Grunhaus, J. (Tel Aviv U.) ; Gruwe, M. (CERN) ; Gupta, A. (Chicago U., EFI ; Chicago U.) ; Hajdu, C. (Budapest, RMKI) ; Hamann, M. (Hamburg U. ; DESY) ; Hanson, G.G. (UC, Riverside) ; Harel, A. (Technion) ; Hauschild, M. (CERN) ; Hawkes, C.M. (Birmingham U.) ; Hawkings, R. (CERN) ; Herten, G. (Freiburg U.) ; Heuer, R.D. (Hamburg U. ; DESY) ; Hill, J.C. (Cambridge U.) ; Horvath, D. (Budapest, RMKI ; Debrecen, Inst. Nucl. Res.) ; Igo-Kemenes, P. (Heidelberg U.) ; Ishii, K. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Jeremie, H. (Montreal U.) ; Jovanovic, P. (Birmingham U.) ; Junk, T.R. (Ottawa Carleton Inst. Phys. ; Carleton U.) ; Kanzaki, J. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U. ; KEK, Tsukuba) ; Karlen, D. (Victoria U.) ; Kawagoe, K. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Kawamoto, T. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Keeler, R.K. (Victoria U.) ; Kellogg, R.G. (Maryland U.) ; Kennedy, B.W. (Rutherford) ; Kluth, S. (Munich, Max Planck Inst.) ; Kobayashi, T. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Kobel, M. (Bonn U.) ; Komamiya, S. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Kramer, T. (Hamburg U. ; DESY) ; Krasznahorkay Jr., A. (Debrecen, Inst. Nucl. Res. ; U. Debrecen, Inst. Phys.) ; Krieger, P. (Ottawa Carleton Inst. Phys. ; Carleton U.) ; von Krogh, J. (Heidelberg U.) ; Kuhl, T. (Hamburg U. ; DESY) ; Kupper, M. (Weizmann Inst.) ; Lafferty, G.D. (Manchester U.) ; Landsman, H. (Technion) ; Lanske, D. (Aachen, Tech. Hochsch.) ; Lellouch, D. (Weizmann Inst.) ; Letts, J. ; Levinson, L. (Weizmann Inst.) ; Lillich, J. (Freiburg U.) ; Lloyd, S.L. (Queen Mary, U. of London) ; Loebinger, F.K. (Manchester U.) ; Lu, J. (British Columbia U.) ; Ludwig, A. (Bonn U.) ; Ludwig, J. (Freiburg U.) ; Mader, W. (Bonn U.) ; Marcellini, S. (Bologna U. ; INFN, Bologna) ; Martin, A.J. (Queen Mary, U. of London) ; Mashimo, T. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Mattig, P. (Wuppertal U.) ; McKenna, J. (British Columbia U.) ; McPherson, R.A. (Victoria U.) ; Meijers, F. (CERN) ; Menges, W. (Hamburg U. ; DESY) ; Merritt, F.S. (Chicago U., EFI ; Chicago U.) ; Mes, H. (Ottawa Carleton Inst. Phys. ; Carleton U. ; TRIUMF) ; Meyer, N. (Hamburg U. ; DESY) ; Michelini, A. (Bologna U. ; INFN, Bologna) ; Mihara, S. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Mikenberg, G. (Weizmann Inst.) ; Miller, D.J. (University Coll. London) ; Mohr, W. (Freiburg U.) ; Mori, T. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Mutter, A. (Freiburg U.) ; Nagai, K. (Queen Mary, U. of London) ; Nakamura, I. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Nanjo, H. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Neal, H.A. (Yale U.) ; O'Neale, S.W. (Birmingham U.) ; Oh, A. (CERN) ; Oreglia, M.J. (Chicago U., EFI ; Chicago U.) ; Orito, S. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Pahl, C. (Munich, Max Planck Inst.) ; Pasztor, G. (UC, Riverside ; Budapest, RMKI) ; Pater, J.R. (Manchester U.) ; Pilcher, J.E. (Chicago U., EFI ; Chicago U.) ; Pinfold, J. (Alberta U.) ; Plane, D.E. (CERN) ; Pooth, O. (Aachen, Tech. Hochsch.) ; Przybycien, M. (CERN) ; Quadt, A. (Munich, Max Planck Inst.) ; Rabbertz, K. (CERN) ; Rembser, C. (CERN) ; Renkel, P. (Weizmann Inst.) ; Roney, J.M. (Victoria U.) ; Rossi, A.M. (Bologna U. ; INFN, Bologna) ; Rozen, Y. (Technion) ; Runge, K. (Freiburg U.) ; Sachs, K. (Ottawa Carleton Inst. Phys. ; Carleton U.) ; Saeki, T. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Sarkisyan, E.K.G. (CERN ; Manchester U.) ; Schaile, A.D. (Munich U.) ; Schaile, O. (Munich U.) ; Scharff-Hansen, P. (CERN) ; Schieck, J. (Munich, Max Planck Inst.) ; Schorner-Sadenius, T. (CERN) ; Schroder, M. (CERN) ; Schumacher, M. (Bonn U.) ; Seuster, R. (Aachen, Tech. Hochsch. ; Munich, Max Planck Inst.) ; Shears, T.G. (CERN) ; Shen, B.C. (UC, Riverside) ; Sherwood, P. (University Coll. London) ; Skuja, A. (Maryland U.) ; Smith, A.M. (CERN) ; Sobie, R. (Victoria U.) ; Soldner-Rembold, S. (Manchester U.) ; Spano, F. (Chicago U., EFI ; Chicago U.) ; Stahl, A. (Aachen, Tech. Hochsch.) ; Strom, D. (Oregon U.) ; Strohmer, R. (Munich U.) ; Tarem, S. (Technion) ; Tasevsky, M. (CERN) ; Teuscher, R. (Chicago U., EFI ; Chicago U.) ; Thomson, M.A. (Cambridge U.) ; Torrence, E. (Oregon U.) ; Toya, D. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Trigger, I. (CERN) ; Trocsanyi, Z. (Debrecen, Inst. Nucl. Res. ; U. Debrecen, Inst. Phys.) ; Tsur, E. (Tel Aviv U.) ; Turner-Watson, M.F. (Birmingham U.) ; Ueda, I. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Ujvari, B. (Debrecen, Inst. Nucl. Res. ; U. Debrecen, Inst. Phys.) ; Vollmer, C.F. (Munich U.) ; Vannerem, P. (Freiburg U.) ; Vertesi, R. (Debrecen, Inst. Nucl. Res. ; U. Debrecen, Inst. Phys.) ; Verzocchi, M. (Maryland U.) ; Voss, H. (CERN) ; Vossebeld, J. (CERN) ; Ward, C.P. (Cambridge U.) ; Ward, D.R. (Cambridge U.) ; Watkins, P.M. (Birmingham U.) ; Watson, A.T. (Birmingham U.) ; Watson, N.K. (Birmingham U.) ; Wells, P.S. (CERN) ; Wengler, T. (CERN) ; Wermes, N. (Bonn U.) ; Wilson, G.W. (Manchester U.) ; Wilson, J.A. (Birmingham U.) ; Wolf, G. (Weizmann Inst.) ; Wyatt, T.R. (Manchester U.) ; Yamashita, S. (Tokyo U., ICEPP ; Tokyo U. ; Kobe U.) ; Zer-Zion, D. (UC, Riverside) ; Zivkovic, Lidija (Technion) |
| Affiliation | (CERN) ; (School of Physics and Astronomy, University of Birmingham, UK) ; (Dipartimento di Fisica dell Universita di Bologna and INFN, Italy) ; (Physikalisches Institut, Universitat Bonn, Germany) ; (Department of Physics, University of California, USA) ; (Cavendish Laboratory, Cambridge, UK) ; (Ottawa-Carleton Institute for Physics, Department of Physics, Carleton University, Canada) ; (Enrico Fermi Institute and Department of Physics, University of Chicago, USA) ; (Fakultat fur Physik, Albert Ludwigs Universitat, Freiburg, Germany) ; (Physikalisches Institut, Universitat Heidelberg, Germany) ; (Indiana University, Department of Physics, USA) ; (Queen Mary and Westfield College, University of London, UK) ; (Technische Hochschule Aachen, III Physikalisches Institut, Aachen, Germany) ; (University College London, UK) ; (School of Physics and Astronomy, Schuster Laboratory, Manchester, UK) ; (Department of Physics, University of Maryland, USA) ; (Laboratoire de Physique Nucleaire, Universite de Montreal, Canada) ; (University of Oregon, Department of Physics, USA) ; (Rutherford Appleton Laboratory, Chilton, Didcot, UK) ; (Department of Physics, Technion-Israel Institute of Technology, Israel) ; (Department of Physics and Astronomy, Tel Aviv University, Israel) ; (International Centre for Elementary Particle Physics and Department of Physics, University of Tokyo and Kobe University, Japan) ; (Particle Physics Department, Weizmann Institute of Science, Israel) ; (Universitat Hamburg/DESY, Germany) ; (University of Victoria, Department of Physics, Canada) ; (University of British Columbia, Department of Physics, Canada) ; (University of Alberta, Department of Physics, Canada) ; (Research Institute for Particle and Nuclear Physics, Budapest, Hungary) ; (Institute of Nuclear Research, Hungary) ; (Ludwigs-Maximilians-Universitat Munchen, Germany) ; (Max-Planck-Institute fur Physik, Munchen, Germany) ; (Yale University,Department of Physics, USA) |
| Publication | 2008 |
| Imprint | 12 Jun 2007 |
| Number of pages | 14 |
| Note | 13 pages, 3 figures, Submitted to Phys. Letts. B |
| In: | Phys. Lett. B 663 (2008) 37-42 |
| DOI | 10.1016/j.physletb.2008.03.057 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN LEP ; OPAL |
| Abstract | This letter describes a direct search for pair produced magnetic monopoles in e+e- collisions. The analysis is based on 62.7 pb^-1 of data collected with the OPAL detector at an average centre-of-mass energy of sqrt(s)= 206.3GeV. The monopole signal was assumed to be characterized by two back-to-back particles with an anomalously high ionization energy loss de/dx in the tracking chambers. No evidence for production of monopoles was observed. Upper limits were obtained on the magnetic monopole pair-production cross-section (sigma) in the mass range 45 GeV/c^2<m_M<102 GeV/c^2. The average limit is sigma < 0.05 pb and is essentially independent of the magnetic monopole mass. The cross-section limit is derived at the 95% confidence level and is valid for spin-1/2 magnetic monopoles. |
| Copyright/License | Copyright © unknown. Published by Elsevier B.V. |
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Δημιουργία εγγραφής 2007-07-03, τελευταία τροποποίηση 2022-03-31
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