Azimuthally anisotropic emission of pions in symmetric heavy-ion collisions

Triple differential cross sections d3 sigma /dp3 for charged pions produced in symmetric heavy-ion collisions were measured with the KaoS magnetic spectrometer at the heavy-ion synchrotron facility SIS at GSI. The correl
Triple differential cross sections d3 sigma /dp3 for charged pions produced in symmetric heavy-ion collisions were measured with the KaoS magnetic spectrometer at the heavy-ion synchrotron facility SIS at GSI. The correlations between the momentum vectors of charged pions and the reaction plane in 197Au+197Au collisions at an incident energy of 1 GeV/nucleon were determined. We observe, for the first time, an azimuthally anisotropic distribution of pions, with enhanced emission perpendicular to the reaction plane. The anisotropy is most pronounced for pions of high transverse momentum in semicentral collisions.
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Author:D. Brill, W. Ahner, P. Baltes, R. Barth, Christian Bormann, M. Cieslak, M. Debowski, E. Grosse, W. Henning, P. Koczon, B. Kohlmeyer, D. Miskowiec, C. Müntz, H. Oeschler, H. Pöppl, F. Pühlhofer, S. Sartorius, R. Schicker, P. Senger, Y. Shin, J. Speer, J. Stein, K. Stiebling, Reinhard Stock, Herbert Ströbele, K. Völkel, A. Wagner, Wladek Walús
URN:urn:nbn:de:hebis:30-17476
Document Type:Article
Language:English
Date of Publication (online):2005/10/05
Year of first Publication:1993
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/10/05
Source:Phys. Rev. Lett. 71, 336-339, ©1993 The American Physical Society, http://link.aps.org/abstract/PRL/v71/p336
HeBIS PPN:186985908
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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