2002
article
Midrapidity Lambda and (Lambda)over-bar production in Au plus Au collisions at root s(NN)=130 GeV
C. Adler, Z. Ahammed, C. Allgower, J. Amonett, B.D. Anderson, Mark Anderson, GS Averichev, J. T. Balewski, O. Barannikova, LS Barnby, J. Baudot, S. Bekele, VV Belaga, R. Bellwied, J. Berger, H. Bichsel, A. Billmeier, LC Bland, CO Blyth, B. E. Bonner, A. Boucham, A. V. Brandin, A. Bravar, R. V. Cadman, H. Caines, Mcd Sanchez, Carlos Cárdenas, John L. Carroll, J. Castillo Castellanos, Maria Ines Abreu Juliao Ochoa de Castro, D. Cebra, P. Chaloupka, S. Chattopadhyay, Y Chen, SP Chernenko, M. Cherney, A. Chikanian, B. Choi, W. Christie, J. P. Coffin, T. M. Cormier, J.G. Cramer, H. J. Crawford, WS Deng, AA Derevschikov, L. Didenko, T. Dietel, JE Draper, V.B. Dunin, J. C. Dunlop, Eckardt, L. G. Efimov, Emelianov, J. Engelage, G. Eppley, B. Erazmus, P. Fachini, Faine, J. Faivre, K. Filimonov, E. Finch, Y. Fisyak, D. Flierl, K. J. Foley, J. Fu, CA Gagliardi, N. Gagunashvili, J. Gans, L. Gaudichet, M. Germain, F. J. M. Geurts, Ghazikhanian, O. Grachov, Grigoriev, M. Guedon, E. Gushin, T. Hallman, D. Hardtke, JW Harris, TW Henry, S. Heppelmann, T. Herston, B. Hippolyte, A. Hirsch, E. Hjort, GW Hoffmann, M. Horsley, HZ Huang, T. J. Humanic, G. Igo, A. Ishihara, YI Ivanshin, P. Jacobs, WW Jacobs, M. A. Janik, I. Johnson, PG Jones, EG Judd, M. Kaneta, M. Kaplan, D. Keane, J. Kiryluk, A. Kisiel, J. Klay, A. Klyachko, A S Konstantinov, M. Kopytine, L. Kotchenda, A.D. Kovalenko, M. Krämer, П. Кравцов, K. Krueger, C. Kuhn, AI Kulikov, G. J. Kunde, CL Kunz, R. Kh. Kutuev, AA Kuznetsov, L. Lakéhal-Ayat, M.A.C. Lamont, J. M. Landgraf, J. S. Lange, C.P. Lansdell, B. Lasiuk, F. Laue, J. Lauret, A. Lebedev, R. Lednický, V. M. Leontiev, MJ LeVine, Q Li, S. J. Lindenbaum, MA Lisa, F Liu, L Liu, Z Liu, QJ Liu, T. Ljubičić, WJ Llope, G. Lo Curto, H. Long, RS Longacre, M. Lopez-Noriega, WA Love, T. Ludlam, D. Lynn, Jiao Ma, R. Majka, S. Margetis, C. Markert, L. Martin, J. N. Marx, HS Matis, YA Matulenko, TS McShane, F. Meißner, Yu. Melnick, A. Meschanin, M. Messer, M.L. Miller, Z. Milosevich, NG Minaev, Joseph Mitchell, V. A. Moiseenko, C. Fred Moore, Morozov, MM de Moura, MG Munhoz, JM Nelson, P. Nevski, V. Nikitin, LV Nogach, B. Norman, S. Nurushev, G. Odyniec, A. Ogawa, Okorokov, M. Oldenburg, D. Olson, G. Paić, SU Pandey, Y. Panebratsev, S.Y. Panitkin, A.I. Pavlinov, T. Pawlak, Perevoztchikov, W. Peryt, VA Petrov, M. Planinić, J. Pluta, N. T. Porile, J. Porter, AM Poskanzer, E. Potrebenikova, D. Prindle, C. A. Pruneau, J. Putschke, G. Rai, G. Rakness, O. Ravel, R. L. Ray, С.В. Разин, D. Reichhold, J. G. Reid, G. Renault, F. Retière, A. Ridiger, H. G. Ritter, JB Roberts, O. V. Rogachevski, JL Romero, A. Rose, C. Roy, Rykov, I. Sakrejda, S. Salur, J. Sandweiss, AC Saulys, I. Savin, R. Scharenberg, N. Schmitz, LS Schroeder, A. Schüttauf, K. Schweda, J. Seger, D. M. Seliverstov, P. Seyboth, E. Shahaliev, K. E. Shestermanov, S. S. Shimanskii, VS Shvetcov, G. Škoro, N. Smirnov, R. J. M. Snellings, P. Sørensen, J. Sowiński, HM Spinka, B. Srivastava, E.J. Stephenson, R. Stock, A. Stolpovsky, M. Strikhanov, B. Stringfellow, C. Struck, Aap Suaide, E. Sugarbaker, C. Suire, M. Šumbera, B. Surrow, T. J. M. Symons, AS de Toledo, P. Szarwas, A. Tai, J. Takahashi, Ah Tang, J. H. Thomas, M. Thompson, Tikhomirov, M. Tokarev, MB Tonjes, T. A. Trainor, S. Trentalange, RE Tribble, Trofimov, O. D. Tsai, T. Ullrich, DG Underwood, G. Van Buren, AM VanderMolen, I. M. Vasilevski, A. N. Vasiliev, S. E. Vigdor, SA Voloshin, F Wang, H. Ward, J. Watson, R. Wells, G. D. Westfall, C. Whitten, H. Wieman, R. Willson, S. W. Wissink, R. Witt, J. Wood, N. Xu, A. E. Yakutin, E. Yamamoto, Jing Yang, P. Yepes, V.I. Yurevich, YV Zanevski, I. Zborovský, H Zhang, Wen-ming Zhang, R. Zoulkarneev, A. N. Zubarev
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Le résumé fourni par la source
We report the first measurement of strange (Lambda) and antistrange ((&ULambda;) over bar) baryon production from s(NN)=130 GeV Au+Au collisions at the Relativistic Heavy Ion Collider (RHIC). Rapidity density and transverse mass distributions at midrapidity are presented as a function of centrality. The yield of Lambda and (&ULambda;) over bar hyperons is found to be approximately proportional to the number of negative hadrons. The production of (&ULambda;) over bar hyperons relative to negative hadrons increases very rapidly with transverse momentum. The magnitude of the increase cannot be described by existing hadronic string fragmentation models alone.
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 ResearchParticle physics theoretical and experimental studies