Accès ouvert déclaré
2006
article
Strange Particle Production in $p+p$ Collisions at $\sqrt{s}$= 200 GeV
B. I. Abelev, J.B. Adams, M. M. Aggarwal, Z. Ahammed, J. Amonett, B.D. Anderson, M. Anderson, D. Arkhipkin, G. S. Averichev, Y. Bai, J. Balewski, O. Barannikova, L. S. Barnby, J. Baudot, S. Bekele, V. V. Belaga, A. Bellingeri-Laurikainen, R. Bellwied, F. Benedosso, S. Bhardwaj, A. Bhasin, A. K. Bhati, H. Bichsel, J. Bielčík, J. Bielčíková, L. C. Bland, S.-L. Blyth, B. E. Bonner, M. Botje, J. Bouchet, A. V. Brandin, A. Bravar, M. Bysterský, R. V. Cadman, Xu Cai, H. Caines, M. Calderon De La Barca Sanchez, J. Castillo Castellanos, O. Catu, D. Cebra, Z. Chajęcki, P. Chaloupka, S. Chattopadhyay, J. Cheng, J.H. Chen, J. Cheng, M Cherney, A. Chikanian, W. Christie, J G Coffin, T M Cormier, M. R. Cosentino, J. G. Cramer, H. J. Crawford, D. Das, Т. Г. Дедович, M. Daugherity, M. M. de Moura, L. Didenko, M DePhillips, A. A. Derevschikov, L Didenko, T. Dietel, P. Djawotho, S. Dogra, Wen-Chao Dong, X. Dong, J. E. Draper, F Du, V B Dunin, J. C. Dunlop, В. Емелянов, V. Eckardt, W.R. Edwards, L. G. Efimov, M. Estienne, J Engelage, G. Eppley, B. Erazmus, M Estienne, P Fachini, R Fatemi, J. Fedorišin, K. Filimonov, P Filip, E. Finch, V. Fine, Y. Fisyak, J. Fu, C. A. Gagliardi, L. Gaillard, Ganti, V. Ghazikhanian, P Ghosh, J S Gonzalez, Y. G. Gorbunov, H. Gos, O Grebenyuk, D Grosnick, S. M. Guertin, K. S. F. F. Guimarães, Yuan Guo, N Gupta, T. D. Gutierrez, B. Haag, T J Hallman, A. Hamed, J. W. Harris, W. He, M Heinz, T W Henry, S. Hepplemann, B. Hippolyte, A. Hirsch, E Hjort, A. M. Hoffman, G. W. Hoffmann, M. J. Horner, H. Z. Huang, S. Huang, E. W. Hughes, T. J. Humanic, G Igo, Peter Martin Jacobs, W W Jacobs, P. Jakl, Fei Jia, H. Jiang, Paul Jones, E G Judd, S. Kabana, K M Kang, J. Kapitan, M. Kaplan, D. Keane, A. Kechechyan, V. Yu. Khodyrev, B.C. Kim, J. Kiryluk, A. Kisiel, E. M. Kislov, S. R. Klein, A. Kocoloski, D D Koetke, T. Kollegger, M. Kopytin, L. Kotchenda, V. Kouchpil, K. Kowalik, M. Krämer, П. Кравцов, V I Kravtsov, K Krueger, C. Kuhn, A I Kulikov, Arun Kumar, А.А. Кузнецов, M.A.C. Lamong, J. M. Landgraf, J. S. Lange, S. LaPointe, F. Laue, J Lauret, A. Lebedev, R. Lednický, C.-H. Lee, S. Lehocká, M. J. LeVine, C. Li, Q. Li, Y. Li, G. Lin, X Lin, S.J. Lindenbaum, Lisá, f. Liu, H. Liu, J. Liu, L Liu, Z. Liu, T. Ljubičić, W. J. Llope, H. Long, R.S. Longarche, M. Lopez-Noriega, W. A. Love, Y. J. Lu, T. Ludlam, D. Lynn, G.L. Ma, Jiangang Ma, Y. G., D. Magestro, D. P. Mahapatra, R. Majka, L. K. Mangotra, R. Manweiler, S. Margetis, C. Markert, L. Martin, H. S. Matis, Yu. A. Matulenko, C McClain, T. S. McShane, Yu. Melnick, A. Meschanin, J. Millane, M A. Miller, N. G. Minaev, S. Mioduszewski, C. Mironov, A. Mischke, D. K. Mishra, J. T. Mitchell, B. Mohanty, L. Molnár, C. Fred Moore, D. A. Morozov, M. G. Munhoz, B. K. Nandi, C. Nattrass, T.K. Nayak, J. M. Nelson, P.K. Netrakanti, V.A. Nikitin, L. V. Nogach, S. B. Nurushev, G. Odyniec, A. Ogawa, В. А. Окороков, M. Oldenburg, D. Olson, M. Pachr, S. Pal, Y. Panebratsev, S. Y. Panitkin, A.I. Pavlinov, T. Pawlak, T. Peitzmann, V. Perevoztchikov, C. Perkins, W. Peryt, V. Petrov, S. C. Phatak, R. Picha, M. Planinić, J. Pluta, N. Poljak, N. Porile, J. Porter, A. M. Poskanzer, M. Potekhin, E. Potrebenikov, B. V. K. S. Potukuchi, D. Prindle, C. A. Pruneau, J. Putschke, G. Rakness, R. Raniwala, S. Raniwala, R Robert Ray, С.В. Разин, J. Reinnarth, D. Relyea, F. Retière, A. Ridiger, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J Moreno Romero, A. Rose, C Roy, L. Ruan, M. J. Russcher, R. Sahoo, T. Sakuma, S. Salur, J. Sandweiss, M. Sarsour, P. S. Sazhin, J. Schambach, R. P. Scharenberg, N. Schmitz, K. Schweda, J. Seger, I. Selyuzhenkov, P. Seyboth, Alexandre Shabetai, E. Shahaliev, M. Shao, M. Sharma, W. Q. Shen, S. S. Shimanskiy, E. P. Sichtermann, F. Simon, R. N. Singaraju, N. Smirnov, R. J. M. Snellings, G. Sood, P. Sørensen, J. Sowiński, J. Speltz, H M Spinka, B. Srivastava, A. Stadnik, T. D. S. Stanislaus, R. Stock, A. Stolpovsky, M. Strikhanov, B. Stringfellow, A. A. P. Suaide, E. Sugarbaker, M. Šumbera, Z. Sun, B. Surrow, M. Swager, T. J. M. Symons, A. Szanto de Toledo, A. Tai, J. Takahaski, Z. Tang, T. Tarnowsky, D. Thein, J. H. Thomas, A. R. Timmins, S. Timoshenko, M. Tokarev, T. A. Trainor, S. Trentalange, R. E. Tribble, O. D. Tsai, J. Ulery, T. Ullrich, D Underwood, G. Van Buren, N. van der Kolk, M. van Leeuwen, A. M. Vander Molen, R. Varma, I. M. Vasilevski, A. N. Vasiliev, R. Vernet, S. E. Vigdor, Y. P. Viyogi, S. Vokál, S. A. Voloshin, W. T. Waggoner, F. Wang, G. Wang, J.S. Wang, X.L. Wang, Y. Wang, J Tracy Watson, J. C. Webb, G Westfall, A. Wetzler, C. Whitten, H. Wieman, S. W. Wissink, R. Witt, J. Wood, J. Wu, N. Xu, QH Xu, Z Xu, P. Yepes, I.-K. Yoo, V.I. Yurevich, W. Zhan, H. Zhang, W.M. Zhang, Y. Zhang, Z.P. Zhang, Y. X. Zhao, C. Zhong, R. Zoulkarneev, Y. Zoulkarneeva, A. N. Zubarev, J. X. Zuo
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Le résumé fourni par la source
We present strange particle spectra and yields measured atmid-rapidity in sqrt text s=200 GeV proton-proton (p+p) collisions atRHIC. We find that the previously observed universal transverse mass(mathrm mT \equiv\sqrt mathrm p_T 2+\mathrm m2) scaling of hadronproduction in p+p collisions seems to break down at higher \mt and thatthere is a difference in the shape of the \mt spectrum between baryonsand mesons. We observe mid-rapidity anti-baryon to baryon ratios nearunity for Lambda and Xi baryons and no dependence of the ratio ontransverse momentum, indicating that our data do not yet reach thequark-jet dominated region. We show the dependence of the mean transversemomentum (\mpt) on measured charged particle multiplicity and on particlemass and infer that these trends are consistent with gluon-jet dominatedparticle production. The data are compared to previous measurements fromCERN-SPS, ISR and FNAL experiments and to Leading Order (LO) and Next toLeading order (NLO) string fragmentation model predictions. We infer fromthese comparisons that the spectral shapes and particle yields from $p+p$collisions at RHIC energies have large contributions from gluon jetsrather than quark jets.
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Les sujets associés
High-Energy Particle Collisions ResearchParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle Interactions