Midrapidity Lambda and Lambda -bar Production in Au+Au Collisions at sqrt[sNN]=130 GeV

We report the first measurement of strange ( Lambda ) and antistrange ( Lambda -bar) baryon production from sqrt[sNN]=130 GeV Au+Au collisions at the Relativistic Heavy Ion Collider (RHIC). Rapidity density and transvers
We report the first measurement of strange ( Lambda ) and antistrange ( Lambda -bar) baryon production from sqrt[sNN]=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 Lambda -bar hyperons is found to be approximately proportional to the number of negative hadrons. The production of Lambda -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.
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alle Autoren: C. Adler11, Z. Ahammed23, C. Allgower12, J. Amonett14, B. D. Anderson14, M. Anderson5, G. S. Averichev9, J. Balewski12, O. Barannikova9,23, L. S. Barnby14, J. Baudot13, S. Bekele20, V. V. Belaga9, R. Bellwi
alle Autoren: C. Adler11, Z. Ahammed23, C. Allgower12, J. Amonett14, B. D. Anderson14, M. Anderson5, G. S. Averichev9, J. Balewski12, O. Barannikova9,23, L. S. Barnby14, J. Baudot13, S. Bekele20, V. V. Belaga9, R. Bellwied31, J. Berger11, H. Bichsel30, A. Billmeier31, L. C. Bland2, C. O. Blyth3, B. E. Bonner24, A. Boucham26, A. Brandin18, A. Bravar2, R. V. Cadman1, H. Caines33, M. Calderón de la Barca Sánchez2, A. Cardenas23, J. Carroll15, J. Castillo26, M. Castro31, D. Cebra5, P. Chaloupka20, S. Chattopadhyay31, Y. Chen6, S. P. Chernenko9, M. Cherney8, A. Chikanian33, B. Choi28, W. Christie2, J. P. Coffin13, T. M. Cormier31, J. G. Cramer30, H. J. Crawford4, W. S. Deng2, A. A. Derevschikov22, L. Didenko2, T. Dietel11, J. E. Draper5, V. B. Dunin9, J. C. Dunlop33, V. Eckardt16, L. G. Efimov9, V. Emelianov18, J. Engelage4, G. Eppley24, B. Erazmus26, P. Fachini2, V. Faine2, J. Faivre13, K. Filimonov15, E. Finch33, Y. Fisyak2, D. Flierl11, K. J. Foley2, J. Fu15,32, C. A. Gagliardi27, N. Gagunashvili9, J. Gans33, L. Gaudichet26, M. Germain13, F. Geurts24, V. Ghazikhanian6, O. Grachov31, V. Grigoriev18, M. Guedon13, E. Gushin18, T. J. Hallman2, D. Hardtke15, J. W. Harris33, T. W. Henry27, S. Heppelmann21, T. Herston23, B. Hippolyte13, A. Hirsch23, E. Hjort15, G. W. Hoffmann28, M. Horsley33, H. Z. Huang6, T. J. Humanic20, G. Igo6, A. Ishihara28, Yu. I. Ivanshin10, P. Jacobs15, W. W. Jacobs12, M. Janik29, I. Johnson15, P. G. Jones3, E. G. Judd4, M. Kaneta15, M. Kaplan7, D. Keane14, J. Kiryluk6, A. Kisiel29, J. Klay15, S. R. Klein15, A. Klyachko12, A. S. Konstantinov22, M. Kopytine14, L. Kotchenda18, A. D. Kovalenko9, M. Kramer19, P. Kravtsov18, K. Krueger1, C. Kuhn13, A. I. Kulikov9, G. J. Kunde33, C. L. Kunz7, R. Kh. Kutuev10, A. A. Kuznetsov9, L. Lakehal-Ayat26, M. A. C. Lamont3, J. M. Landgraf2, S. Lange11, C. P. Lansdell28, B. Lasiuk33, F. Laue2, J. Lauret2, A. Lebedev2, R. Lednický9, V. M. Leontiev22, M. J. LeVine2, Q. Li31, S. J. Lindenbaum19, M. A. Lisa20, F. Liu32, L. Liu32, Z. Liu32, Q. J. Liu30, T. Ljubicic2, W. J. Llope24, G. LoCurto16, H. Long6, R. S. Longacre2, M. Lopez-Noriega20, W. A. Love2, T. Ludlam2, D. Lynn2, J. Ma6, R. Majka33, S. Margetis14, C. Markert33, L. Martin26, J. Marx15, H. S. Matis15, Yu. A. Matulenko22, T. S. McShane8, F. Meissner15, Yu. Melnick22, A. Meschanin22, M. Messer2, M. L. Miller33, Z. Milosevich7, N. G. Minaev22, J. Mitchell24, V. A. Moiseenko10, C. F. Moore28, V. Morozov15, M. M. de Moura31, M. G. Munhoz25, J. M. Nelson3, P. Nevski2, V. A. Nikitin10, L. V. Nogach22, B. Norman14, S. B. Nurushev22, G. Odyniec15, A. Ogawa21, V. Okorokov18, M. Oldenburg16, D. Olson15, G. Paic20, S. U. Pandey31, Y. Panebratsev9, S. Y. Panitkin2, A. I. Pavlinov31, T. Pawlak29, V. Perevoztchikov2, W. Peryt29, V. A Petrov10, M. Planinic12, J. Pluta29, N. Porile23, J. Porter2, A. M. Poskanzer15, E. Potrebenikova9, D. Prindle30, C. Pruneau31, J. Putschke16, G. Rai15, G. Rakness12, O. Ravel26, R. L. Ray28, S. V. Razin9,12, D. Reichhold8, J. G. Reid30, G. Renault26, F. Retiere15, A. Ridiger18, H. G. Ritter15, J. B. Roberts24, O. V. Rogachevski9, J. L. Romero5, A. Rose31, C. Roy26, V. Rykov31, I. Sakrejda15, S. Salur33, J. Sandweiss33, A. C. Saulys2, I. Savin10, J. Schambach28, R. P. Scharenberg23, N. Schmitz16, L. S. Schroeder15, A. Schüttauf16, K. Schweda15, J. Seger8, D. Seliverstov18, P. Seyboth16, E. Shahaliev9, K. E. Shestermanov22, S. S. Shimanskii9, V. S. Shvetcov10, G. Skoro9, N. Smirnov33, R. Snellings15, P. Sorensen6, J. Sowinski12, H. M. Spinka1, B. Srivastava23, E. J. Stephenson12, R. Stock11, A. Stolpovsky31, M. Strikhanov18, B. Stringfellow23, C. Struck11, A. A. P. Suaide31, E. Sugarbaker20, C. Suire2, M. Sumbera20, B. Surrow2, T. J. M. Symons15, A. Szanto de Toledo25, P. Szarwas29, A. Tai6, J. Takahashi25, A. H. Tang15, J. H. Thomas15, M. Thompson3, V. Tikhomirov18, M. Tokarev9, M. B. Tonjes17, T. A. Trainor30, S. Trentalange6, R. E. Tribble27, V. Trofimov18, O. Tsai6, T. Ullrich2, D. G. Underwood1, G. Van Buren2, A. M. VanderMolen17, I. M. Vasilevski10, A. N. Vasiliev22, S. E. Vigdor12, S. A. Voloshin31, F. Wang23, H. Ward28, J. W. Watson14, R. Wells20, G. D. Westfall17, C. Whitten, Jr.6, H. Wieman15, R. Willson20, S. W. Wissink12, R. Witt33, J. Wood6, N. Xu15, Z. Xu2, A. E. Yakutin22, E. Yamamoto15, J. Yang6, P. Yepes24, V. I. Yurevich9, Y. V. Zanevski9, I. Zborovský9, H. Zhang33, W. M. Zhang14, R. Zoulkarneev10, and A. N. Zubarev9
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Metadaten
Author:Clemens Adler, Z. Ahammed, C. Allgower, et al., STAR Collaboration, Reinhard Stock
URN:urn:nbn:de:hebis:30-18858
Document Type:Article
Language:English
Date of Publication (online):2005/10/14
Year of first Publication:2002
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/10/14
Source:Phys. Rev. Lett. 89, 092301 (2002), ©2002 The American Physical Society, http://link.aps.org/abstract/PRL/v89/e092301
Institutes:Physik
Dewey Decimal Classification:530 Physik
PACS-Classification:25.75.Dw Particle and resonance production
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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