Accès ouvert déclaré
2002
article
Disappearance of back-to-back high p {sub T} hadron correlations in central Au+Au collisions at {radical}s{sub NN} = 200 GeV
C. Adler, Z Ahammed, C. Allgower, J. Amonett, B. D. Anderson, M. Anderson, G S Averichev, J. Balewski, O. Barannikova, L S Barnby, J Baudot, S Bekele, V. V. Belaga, R. Bellwied, J. Berger, H Bichsel, A Billmeier, L C Bland, C. O. Blyth, B. E. Bonner, A. Boucham, A Brandin, A Bravar, R V Cadman, H. Caines, M. Calderon de la Barca Sanchez, A Cardenas, J Carroll, J Castillo, M Castro, D. Cebra, P. Chaloupka, S. Chattopadhyay, Y. Chen, S P Chernenko, M Cherney, A. Chikanian, B Choi, W. H. Christie, J G Coffin, T M Cormier, M. M. Corral, J. G. Cramer, H. J. Crawford, A. A. Derevschikov, L Didenko, T Dietel, J. E. Draper, V B Dunin, J. C. Dunlop, V. Eckardt, L. G. Efimov, V. Emelianov, J Engelage, G. Eppley, B Erazmus, P Fachini, V Faine, J. Faivre, R Fatemi, K. Filimonov, E Finch, Y Fisyak, D Flierl, K J Foley, J Fu, C. A. Gagliardi, N. Gagunashvili, J Gans, L. Gaudichet, M. Germain, F Geurts, V. Ghazikhanian, O Grachov, V Grigoriev, M Guedon, E. Gushin, T J Hallman, D Hardtke, J. W. Harris, T W Henry, S. Heppelmann, T. Herston, B Hippolyte, A. Hirsch, E Hjort, G. W. Hoffmann, M Horsley, H. Z. Huang, T. J. Humanic, G Igo, A Ishihara, Yu. I. Ivanshin, P Jacobs, W W Jacobs, M Janik, I. Johnson, P. G. Jones, E G Judd, M. Kaneta, M. Kaplan, D Keane, J. Kiryluk, A. Kisiel, J. Klay, S. R. Klein, A Klyachko, T. Kollegger, A S Konstantinov, M. Kopytine, L. Kotchenda, A. D. Kovalenko, M. Kramer, P. Kravtsov, K Krueger, C. Kuhn, A I Kulikov, G. J. Kunde, C. L. Kunz, R. Kh. Kutuev, А. А. Кузнецов, L. Lakéhal-Ayat, M. A. C. Lamont, J. M. Landgraf, S. Lange, C. P. Lansdell, B. Lasiuk, F. Laue, J Lauret, A. A. Lebedev, R. Lednicky, V. M. Leontiev, M. J. LeVine, Q. Li, S. J. Lindenbaum, M. A. Lisa, F Liu, L. C. Liu, Z. Liu, Q.J. Liu, T. Ljubicic, W. J. Llope, G. Locurto
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Le résumé fourni par la source
Azimuthal correlations for large transverse momentum charged hadrons have been measured over a wide pseudo-rapidity range and full azimuth in Au+Au and p+p collisions at = {radical}s{sub NN} = 200 GeV. The small-angle correlations observed in p+p collisions and at all centralities of Au+Au collisions are characteristic of hard-scattering processes already observed in elementary collisions. A strong back-to-back correlation exists for p+p and peripheral Au + Au. In contrast, the back-to-back correlations are reduced considerably in the most central Au+Au collisions, indicating substantial interaction as the hard-scattered partons or their fragmentation products traverse the medium.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
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Les sujets associés
High-Energy Particle Collisions ResearchStochastic processes and statistical mechanicsQuantum Chromodynamics and Particle Interactions