Bose-Einstein study of position-momentum correlations of charged pions in hadronic $Z^{0}$ decays

Abbiendi, G.; Schorner-Sadenius, T.; Geich-Gimbel, C.; Rozen, Y.; Boutemeur, M.; Burckhart, H.J.; Axen, D.; Meyer, N.; Mattig, Peter; Sachs, K.; Fleck, I.; Giacomelli, G.; Mohr, W.; Meijers, F.; Boeriu, O.; Mori, T.; Mihara, S.; Shears, T.G.; Akesson, P.F.; Cuffiani, M.; Duckeck, G.; Keeler, R.K.; McPherson, R.A.; Tasevsky, M.; Torrence, E.; Tsur, E.; Gruwe, M.; Kluth, S.; Batley, R.J.; Kupper, M.; Quadt, A.; Pater, J.R.; Zivkovic, Lidija; Braibant, S.; Barlow, R.J.; Giunta, Marina; Yamashita, S.; Duerdoth, I.P.; Grunhaus, J.; Heuer, R.D.; Dallavalle, G.M.; Menges, W.; Alexander, G.; Seuster, R.; Soldner-Rembold, S.; Shen, B.C.; Lettso, J.; Verzocchi, M.; Komamiya, S.; Saeki, T.; Herten, G.; Kawamoto, T.; Nanjo, H.; Bell, Kenneth Watson; Trigger, I.; Anderson, K.J.; Wilson, G.W.; Bethke, S.; Hanson, G.G.; Ueda, I.; Ujvari, B.; Jovanovic, P.; Campana, S.; Mashimo, T.; Roney, J.M.; Dado, S.; Igo-Kemenes, P.; Hajdu, C.; Wilson, J.A.; Hamann, M.; Carnegie, R.K.; Wyatt, T.R.; Bock, P.; Wengler, T.; Dienes, B.; Lu, J.; Behnke, T.; Bella, G.; Scharff-Hansen, P.; Ferrari, P.; Mikenberg, G.; Neal, H.A.; Rabbertz, K.; Kobayashi, T.; Wermes, N.; Ludwig, J.; Levinson, L.; Sobie, R.; Marcellini, S.; O'Neale, S.W.; Biebel, O.; von Krogh, J.; Krasznahorkay, A., Jr.; Martin, A.J.; Pooth, O.; Duchovni, E.; Bechtle, P.; Sarkisyan, E.K.G.; Fabbri, F.; Schroder, M.; Kobel, M.; Hill, J.C.; Hauschild, M.; Turner-Watson, M.F.; Lillich, J.; Renkel, P.; Kanzaki, J.; Watson, A.T.; Bell, P.J.; Lloyd, S.L.; Barberio, E.; Anagnostou, G.; Gary, John William; Kennedy, B.W.; Vannerem, P.; Watkins, P.M.; Brown, Robert M.; Fiedler, F.; Bellerive, A.; Mader, W.; De Wolf, E.A.; Hawkes, C.M.; Harel, A.; Loebinger, F.K.; Strohmer, R.; Rossi, A.M.; Dubbert, J.; Pasztor, G.; Capiluppi, P.; Ishii, K.; Przybycien, M.; Vertesi, R.; Rembser, C.; Lellouch, D.; Ludwig, A.; Stahl, A.; Charlton, D.G.; Spano, F.; Carter, J.R.; Ford, M.; Horvath, D.; Schumacher, M.; Schaile, A.D.; Gagnon, P.; Toya, D.; Oh, A.; Giacomelli, P.; Miller, D.J.; Gross, E.; Thomson, M.A.; Junk, T.R.; Kramer, T.; Sherwood, P.; Ward, C.P.; Ciocca, C.; Mutter, A.; Ward, D.R.; Kellogg, R.G.; Kuhl, T.; Carter, A.A.; Mes, H.; Teuscher, R.; Asai, S.; Nakamura, I.; Plane, D.E.; Chang, C.Y.; Tarem, S.; De Roeck, A.; Etzion, E.; Pahl, C.; Hawkings, R.; Merritt, F.S.; Barillari, T.; Orito, S.; Ainsley, C.; Runge, K.; Smith, A.M.; Csilling, A.; Pinfold, J.; Strom, David M.; Goldberg, J.; Vossebeld, J.; Schieck, J.; Desch, K.; Vollmer, C.F.; Gupta, A.; Nagai, K.; Benelli, G.; Bailey, I.; Lanske, D.; Karlen, D.; Krieger, P.; McKenna, J.; Oreglia, M.J.; Jeremie, H.; Zer-Zion, D.; Voss, H.; Kawagoe, K.; Michelini, A.; Watson, N.K.; Landsman, H.; Schaile, O.; Wells, P.S.; Wolf, G.; Skuja, A.; Lafferty, G.D.; Frey, A.; Trocsanyi, Z.; Pilcher, J.E.

doi:10.1140/epjc/s10052-007-0443-z

Article
Report number	arXiv:0708.1122 ; CERN-PH-EP-2007-025 ; OPAL-PR423 ; CERN-PH-EP-2007-025
Title	Bose-Einstein study of position-momentum correlations of charged pions in hadronic $Z^{0}$ decays
Related title	PION
Author(s)	Abbiendi, G. ; Ainsley, C. ; Akesson, P.F. ; Alexander, G. ; Anagnostou, G. ; Anderson, K.J. ; Asai, S. ; Axen, D. ; Bailey, I. ; Barberio, E. ; Barillari, T. ; Barlow, R.J. ; Batley, R.J. ; Bechtle, P. ; Behnke, T. ; Bell, Kenneth Watson ; Bell, P.J. ; Bella, G. ; Bellerive, A. ; Benelli, G. ; Bethke, S. ; Biebel, O. ; Boeriu, O. ; Bock, P. ; Boutemeur, M. ; Braibant, S. ; Brown, Robert M. ; Burckhart, H.J. ; Campana, S. ; Capiluppi, P. ; Carnegie, R.K. ; Carter, A.A. ; Carter, J.R. ; Chang, C.Y. ; Charlton, D.G. ; Ciocca, C. ; Csilling, A. ; Cuffiani, M. ; Dado, S. ; Dallavalle, G.M. ; De Roeck, A. ; De Wolf, E.A. ; Desch, K. ; Dienes, B. ; Dubbert, J. ; Duchovni, E. ; Duckeck, G. ; Duerdoth, I.P. ; Etzion, E. ; Fabbri, F. ; Ferrari, P. ; Fiedler, F. ; Fleck, I. ; Ford, M. ; Frey, A. ; Gagnon, P. ; Gary, John William ; Geich-Gimbel, C. ; Giacomelli, G. ; Giacomelli, P. ; Giunta, Marina ; Goldberg, J. ; Gross, E. ; Grunhaus, J. ; Gruwe, M. ; Gupta, A. ; Hajdu, C. ; Hamann, M. ; Hanson, G.G. ; Harel, A. ; Hauschild, M. ; Hawkes, C.M. ; Hawkings, R. ; Herten, G. ; Heuer, R.D. ; Hill, J.C. ; Horvath, D. ; Igo-Kemenes, P. ; Ishii, K. ; Jeremie, H. ; Jovanovic, P. ; Junk, T.R. ; Kanzaki, J. ; Karlen, D. ; Kawagoe, K. ; Kawamoto, T. ; Keeler, R.K. ; Kellogg, R.G. ; Kennedy, B.W. ; Kluth, S. ; Kobayashi, T. ; Kobel, M. ; Komamiya, S. ; Kramer, T. ; Krasznahorkay, A., Jr. ; Krieger, P. ; von Krogh, J. ; Kuhl, T. ; Kupper, M. ; Lafferty, G.D. ; Landsman, H. ; Lanske, D. ; Lellouch, D. ; Lettso, J. ; Levinson, L. ; Lillich, J. ; Lloyd, S.L. ; Loebinger, F.K. ; Lu, J. ; Ludwig, A. ; Ludwig, J. ; Mader, W. ; Marcellini, S. ; Martin, A.J. ; Mashimo, T. ; Mattig, Peter ; McKenna, J. ; McPherson, R.A. ; Meijers, F. ; Menges, W. ; Merritt, F.S. ; Mes, H. ; Meyer, N. ; Michelini, A. ; Mihara, S. ; Mikenberg, G. ; Miller, D.J. ; Mohr, W. ; Mori, T. ; Mutter, A. ; Nagai, K. ; Nakamura, I. ; Nanjo, H. ; Neal, H.A. ; O'Neale, S.W. ; Oh, A. ; Oreglia, M.J. ; Orito, S. ; Pahl, C. ; Pasztor, G. ; Pater, J.R. ; Pilcher, J.E. ; Pinfold, J. ; Plane, D.E. ; Pooth, O. ; Przybycien, M. ; Quadt, A. ; Rabbertz, K. ; Rembser, C. ; Renkel, P. ; Roney, J.M. ; Rossi, A.M. ; Rozen, Y. ; Runge, K. ; Sachs, K. ; Saeki, T. ; Sarkisyan, E.K.G. ; Schaile, A.D. ; Schaile, O. ; Scharff-Hansen, P. ; Schieck, J. ; Schorner-Sadenius, T. ; Schroder, M. ; Schumacher, M. ; Seuster, R. ; Shears, T.G. ; Shen, B.C. ; Sherwood, P. ; Skuja, A. ; Smith, A.M. ; Sobie, R. ; Soldner-Rembold, S. ; Spano, F. ; Stahl, A. ; Strom, David M. ; Strohmer, R. ; Tarem, S. ; Tasevsky, M. ; Teuscher, R. ; Thomson, M.A. ; Torrence, E. ; Toya, D. ; Trigger, I. ; Trocsanyi, Z. ; Tsur, E. ; Turner-Watson, M.F. ; Ueda, I. ; Ujvari, B. ; Vollmer, C.F. ; Vannerem, P. ; Vertesi, R. ; Verzocchi, M. ; Voss, H. ; Vossebeld, J. ; Ward, C.P. ; Ward, D.R. ; Watkins, P.M. ; Watson, A.T. ; Watson, N.K. ; Wells, P.S. ; Wengler, T. ; Wermes, N. ; Wilson, G.W. ; Wilson, J.A. ; Wolf, G. ; Wyatt, T.R. ; Yamashita, S. ; Zer-Zion, D. ; Zivkovic, Lidija
Affiliation	(CERN) ; (School of Physics and Astronomy, University of Birmingham) ; (Dipartimento di Fisica dell Universita di Bologna and INFN) ; (Physikalisches Institut, Universitat Bonn) ; (Department of Physics, University of California) ; (Cavendish Laboratory, Cambridge) ; (Ottawa-Carleton Institute for Physics, Department of Physics, Carleton University) ; (Enrico Fermi Institute and Department of Physics, University of Chicago) ; (Fakultat fur Physik, Albert Ludwigs Universitat, Freiburg) ; (Physikalisches Institut, Universitat Heidelberg) ; (Indiana University, Department of Physics) ; (Queen Mary and Westfield College, University of London,) ; (Technische Hochschule Aachen, III Physikalisches Institut, Aachen) ; (University College London) ; (School of Physics and Astronomy, Schuster Laboratory, Manchester) ; (Department of Physics, University of Maryland) ; (Laboratoire de Physique Nucleaire, Universite de Montreal) ; (University of Oregon, Department of Physics) ; (CLRC Rutherford Appleton Laboratory) ; (Department of Physics, Technion-Israel Institute of Technology) ; (Department of Physics and Astronomy, Tel Aviv University) ; (International Centre for Elementary Particle Physics and Department of Physics, University of Tokyo) ; (Kobe University) ; (Particle Physics Department, Weizmann Institute of Science) ; (Universitat Hamburg/DESY) ; (University of Victoria, Department of Physics) ; (University of British Columbia, Department of Physics) ; (University of Alberta, Department of Physics) ; (Research Institute for Particle and Nuclear Physics, Budapest) ; (Institute of Nuclear Research, Hungary) ; (Ludwigs-Maximilians-Universitat Munchen) ; (Max-Planck-Institute fur Physik, Munchen) ; (Yale University,Department of Physics) ; (TRIUMF)
Publication	2007
Imprint	09 Jul 2007
Number of pages	25
In:	Eur. Phys. J. C 52 (2007) 787-803
DOI	10.1140/epjc/s10052-007-0443-z
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LEP ; OPAL
Abstract	A study of Bose-Einstein correlations in pairs of identically charged pions produced in e+e- annihilations at the Z0 peak has been performed for the first time assuming a non-static emitting source. The results are based on the high statistics data obtained with the OPAL detector at LEP. The correlation functions have been analyzed in intervals of the average pair transverse momentum and of the pair rapidity, in order to study possible correlations between the pion production points and their momenta (position-momentum correlations). The Yano-Koonin and the Bertsch-Pratt parameterizations have been fitted to the measured correlation functions to estimate the geometrical parameters of the source as well as the velocity of the source elements with respect to the overall centre-of-mass frame. The source rapidity is found to scale approximately with the pair rapidity, and both the longitudinal and transverse source dimensions are found to decrease for increasing average pair transverse momenta.

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