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Scaling properties of hyperon production in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV

J. 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 1 S. Bekele V.V. Belaga A. Bellingeri-Laurikainen 2 R. Bellwied B.I. Bezverkhny S. Bhardwaj A. Bhasin A.K. Bhati H. Bichsel J. Bielcik J. Bielcikova L.C. Bland C.O. Blyth S.L. Blyth B.E. Bonner M. Botje J. Bouchet 2 A.V. Brandin A. Bravar M. Bystersky R.V. Cadman X.Z. Cai H. Caines M.C.D. Sanchez J. Castillo O. Catu D. Cebra Z. Chajecki P. Chaloupka S. Chattopadhyay H.F. Chen J.H. Chen Y. Chen J. Cheng M. Cherney A. Chikanian H.A. Choi W. Christie J.P. Coffin 1 T.M. Cormier M.R. Cosentino J.G. Cramer H.J. Crawford D. Das S. Das M. Daugherity M.M. de Moura T.G. Dedovich M. Dephillips A.A. Derevschikov L. Didenko T. Dietel P. Djawotho S.M. Dogra W.J. Dong X. Dong J.E. Draper F. Du V.B. Dunin J.C. Dunlop M.R.D. Mazumdar V. Eckardt W.R. Edwards L.G. Efimov V. Emelianov J. Engelage G. Eppley B. Erazmus 2 Magali Estienne 1 P. Fachini R. Fatemi J. Fedorisin K. Filimonov P. Filip E. Finch V. Fine Y. Fisyak J. Fu C.A. Gagliardi L. Gaillard J. Gans M.S. Ganti V. Ghazikhanian P. Ghosh J.E. Gonzalez Y.G. Gorbunov H. Gos O. Grebenyuk D. Grosnick S.M. Guertin K.S.F.F. Guimaraes Y. 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 1 A. Hirsch E. Hjort G.W. Hoffmann M.J. Horner H.Z. Huang S.L. Huang E.W. Hughes T.J. Humanic G. Igo P. Jacobs W.W. Jacobs P. Jakl F. Jia H. Jiang P.G. Jones E.G. Judd S. Kabana 2 K. Kang J. Kapitan M. Kaplan D. Keane A. Kechechyan V.Y. Khodyrev B.C. Kim J. Kiryluk A. Kisiel E.M. Kislov S.R. Klein D.D. Koetke T. Kollegger M. Kopytine L. Kotchenda V. Kouchpil K.L. Kowalik M. Kramer P. Kravtsov V.I. Kravtsov K. Krueger C. Kuhn 1 A.I. Kulikov A. Kumar A.A. Kuznetsov M.A.C. Lamont J.M. Landgraf S. Lange S. Lapointe F. Laue J. Lauret A. Lebedev R. Lednicky C.H. Lee S. Lehocka M.J. Levine C. Li Q. Li Y. Li G. Lin S.J. Lindenbaum M.A. Lisa F. Liu Hong Liu J. Liu L. Liu Z. Liu T. Ljubicic W.J. Llope H. Long R.S. Longacre M. Lopez-Noriega W.A. Love Y. Lu T. Ludlam D. Lynn G.L. Ma J.G. Ma Y.G. Ma D. Magestro D.P. Mahapatra R. Majka L.K. Mangotra R. Manweiler S. Margetis C. Markert Lilian Martin 2 H.S. Matis Y.A. Matulenko C.J. Mcclain T.S. Mcshane Y. Melnick A. Meschanin M.L. Miller N.G. Minaev S. Mioduszewski C. Mironov A. Mischke D.K. Mishra J. Mitchell B. Mohanty L. Molnar C.F. 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 V. Okorokov M. Oldenburg D. Olson M. Pachr S.K. Pal Y. Panebratsev S.Y. Panitkin A.I. Pavlinov T. Pawlak T. Peitzmann V. Perevoztchikov C. Perkins W. Peryt V.A. Petrov S.C. Phatak R. Picha M. Planinic J. Pluta N. Poljak N. Porile J. Porter A.M. Poskanzer M. Potekhin E. Potrebenikova B.V.K.S. Potukuchi D. Prindle C. Pruneau J. Putschke G. Rakness R. Raniwala S. Raniwala R.L. Ray S.V. Razin J. Reinnarth 2 D. Relyea F. Retiere A. Ridiger H.G. Ritter J.B. Roberts O.V. Rogachevskiy J.L. Romero A. Rose C. Roy 2 L. Ruan M.J. Russcher R. Sahoo I. Sakrejda 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. Sichtermann F. Simon R.N. Singaraju N. Smirnov R. Snellings G. Sood P. Sorensen J. Sowinski J. Speltz 1 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. Sumbera Z. Sun B. Surrow M. Swanger T.J.M. Symons A.S. de Toledo A. Tai J. Takahashi A.H. 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.G. Underwood G. van Buren N. van der Kolk M. van Leeuwen A.M. van der Molen R. Varma I.M. Vasilevski A.N. Vasiliev R. Vernet 1 S.E. Vigdor Y.P. Viyogi S. Vokal S.A. Voloshin W.T. Waggoner F. Wang G. Wang J.S. Wang X.L. Wang Y. Wang J.W. Watson J.C. Webb G.D. Westfall A. Wetzler C. Whitten H. Wieman S.W. Wissink R. Witt J. Wood J. Wu N. Xu Q.H. Xu Z. Xu P. Yepes I.K. Yoo V.I. Yurevich W. Zhan H. Zhang W.M. Zhang Y. Zhang Z.P. Zhang Y. Zhao C. Zhong R. Zoulkarneev Y. Zoulkarneeva A.N. Zubarev J.X. Zuo
Abstract : We present the scaling properties of Lambda, Xi, and Omega in midrapidity Au+Au collisions at the Brookhaven National Laboratory Relativistic Heavy Ion Collider at root s(NN)=200 GeV. The yield of multistrange baryons per participant nucleon increases from peripheral to central collisions more rapidly than that of Lambda, indicating an increase of the strange-quark density of the matter produced. The strange phase-space occupancy factor gamma(s) approaches unity for the most central collisions. Moreover, the nuclear modification factors of p, Lambda, and Xi are consistent with each other for 2 < p(T) < 5 GeV/c in agreement with a scenario of hadron formation from constituent quark degrees of freedom
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Submitted on : Monday, March 12, 2007 - 9:59:24 AM
Last modification on : Thursday, August 6, 2020 - 6:03:20 PM

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J. Adams, M.M. Aggarwal, Z. Ahammed, J. Amonett, B.D. Anderson, et al.. Scaling properties of hyperon production in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. Physical Review Letters, American Physical Society, 2007, 98, pp.062301. ⟨10.1103/PhysRevLett.98.062301⟩. ⟨in2p3-00136054⟩

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