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Forward $\Lambda$ Production and Nuclear Stopping Power in d + Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV

B.I. Abelev M.M. Aggarwal Z. Ahammed B.D. Anderson D. Arkhipkin G.S. Averichev Y. Bai J. Balewski O. Barannikova L.S. Barnby J. Baudot 1 S. Baumgart V.V. Belaga A. Bellingeri-Laurikainen 2 R. Bellwied F. Benedosso R.R. Betts S. Bhardwaj A. Bhasin A.K. Bhati H. Bichsel J. Bielcik J. Bielcikova L.C. Bland S.-L. Blyth M. Bombara B.E. Bonner M. Botje J. Bouchet A.V. Brandin A. Bravar T.P. Burton M. Bystersky X.Z. Cai H. Caines M. Calderon de la Barca Sanchez J. Callner O. Catu D. Cebra M.C. Cervantes Z. Chajecki P. Chaloupka S. Chattopadhyay H.F. Chen J.H. Chen J.Y. Chen J. Cheng M. Cherney A. Chikanian W. Christie S.U. Chung R.F. Clarke M.J.M. Codrington J.P. Coffin 1 T.M. Cormier M.R. Cosentino J.G. Cramer H.J. Crawford D. Das S. Dash M. Daugherity M.M. de Moura T.G. Dedovich M. Dephillips A.A. Derevschikov L. Didenko T. Dietel P. Djawotho S.M. Dogra X. Dong J.L. Drachenberg J.E. Draper F. Du V.B. Dunin J.C. Dunlop M.R. Dutta Mazumdar V. Eckardt W.R. Edwards L.G. Efimov V. Emelianov J. Engelage G. Eppley B. Erazmus 2 Magali Estienne P. Fachini R. Fatemi J. Fedorisin A. Feng P. Filip E. Finch V. Fine Y. Fisyak J. Fu C.A. Gagliardi L. Gaillard M.S. Ganti E. Garcia-Solis V. Ghazikhanian P. Ghosh Y.N. Gorbunov H. Gos O. Grebenyuk D. Grosnick B. Grube S.M. Guertin K.S.F.F. Guimaraes N. Gupta B. Haag T.J. Hallman A. Hamed J.W. Harris W. He M. Heinz T.W. Henry S. Heppelmann B. Hippolyte 1 A. Hirsch E. Hjort A.M. Hoffman G.W. Hoffmann D.J. Hofman R.S. Hollis M.J. Horner H.Z. Huang E.W. Hughes T.J. Humanic G. Igo A. Iordanova P. Jacobs W.W. Jacobs P. Jakl F. Jia P.G. Jones E.G. Judd S. Kabana 2 K. Kang J. Kapitan M. Kaplan D. Keane A. Kechechyan D. Kettler V.Yu. Khodyrev J. Kiryluk A. Kisiel E.M. Kislov S.R. Klein A.G. Knospe A. Kocoloski D.D. Koetke T. Kollegger M. Kopytine L. Kotchenda V. Kouchpil K.L. Kowalik P. Kravtsov V.I. Kravtsov K. Krueger C. Kuhn 1 A.I. Kulikov A. Kumar P. Kurnadi 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 X. Lin S.J. Lindenbaum M.A. Lisa F. Liu Hong Liu J. Liu L. Liu T. Ljubicic W.J. Llope R.S. Longacre W.A. Love Y. Lu T. Ludlam D. Lynn G.L. Ma J.G. Ma Y.G. Ma D.P. Mahapatra R. Majka L.K. Mangotra R. Manweiler S. Margetis C. Markert Lilian Martin 2 H.S. Matis Yu.A. Matulenko C.J. Mcclain T.S. Mcshane Yu. Melnick A. Meschanin J. Millane M.L. Miller N.G. Minaev S. Mioduszewski A. Mischke J. Mitchell B. Mohanty D.A. Morozov M.G. Munhoz B.K. Nandi C. Nattrass T.K. Nayak J.M. Nelson C. Nepali P.K. Netrakanti L.V. Nogach S.B. Nurushev G. Odyniec A. Ogawa V. Okorokov M. Oldenburg D. Olson M. Pachr S.K. Pal Y. Panebratsev A.I. Pavlinov T. Pawlak T. Peitzmann V. Perevoztchikov C. Perkins W. Peryt S.C. Phatak M. Planinic J. Pluta N. Poljak N. Porile A.M. Poskanzer M. Potekhin E. Potrebenikova B.V.K.S. Potukuchi D. Prindle C. Pruneau N.K. Pruthi J. Putschke I.A. Qattan R. Raniwala S. Raniwala R.L. Ray D. Relyea 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 T. Sakuma S. Salur J. Sandweiss M. Sarsour P.S. Sazhin J. Schambach R.P. Scharenberg N. Schmitz 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. Snellings P. Sorensen J. Sowinski J. Speltz 1 H.M. Spinka B. Srivastava A. Stadnik T.D.S. Stanislaus D. Staszak R. Stock M. Strikhanov B. Stringfellow A.A.P. Suaide M.C. Suarez N.L. Subba M. Sumbera X.M. Sun Z. Sun B. Surrow T.J.M. Symons A. Szanto de Toledo J. Takahashi A.H. Tang T. Tarnowsky 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. Vander Molen R. Varma I.M. Vasilevski A.N. Vasiliev R. Vernet 1 S.E. Vigdor Y.P. Viyogi S. Vokal S.A. Voloshin M. Wada W.T. Waggoner F. Wang G. Wang J.S. Wang X.L. Wang Y. Wang J.C. Webb G.D. Westfall C. Whitten Jr. H. Wieman S.W. Wissink R. Witt J. Wu Y. Wu N. Xu Q.H. Xu Z. Xu P. Yepes I.-K. Yoo Q. Yue V.I. Yurevich M. Zawisza W. Zhan H. Zhang W.M. Zhang Y. Zhang Z.P. Zhang Y. Zhao C. Zhong J. Zhou R. Zoulkarneev Y. Zoulkarneeva A.N. Zubarev J.X. Zuo
Abstract : We report the measurement of Lamda and Anti-Lamda yields and inverse slope parameters in d + Au collisions at sqrt(s_NN) = 200 GeV at forward and backward rapidities (y = +- 2.75), using data from the STAR forward time projection chambers. The contributions of different processes to baryon transport and particle production are probed exploiting the inherent asymmetry of the d + Au system. Comparisons to model calculations show that the baryon transport on the deuteron side is consistent with multiple collisions of the deuteron nucleons with gold participants. On the gold side HIJING based models do not describe the measured particle yields while models with initial state nuclear effects and/or hadronic rescattering do. The Multi-Chain Model can provide a good description of the net baryon density in d + Au collisions at RHIC, and the derived parameters of the model agree with those from nuclear collisions at lower energies.
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Submitted on : Tuesday, June 5, 2007 - 3:54:35 PM
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B.I. Abelev, M.M. Aggarwal, Z. Ahammed, B.D. Anderson, D. Arkhipkin, et al.. Forward $\Lambda$ Production and Nuclear Stopping Power in d + Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV. Physical Review C, American Physical Society, 2007, 76, pp.064904. ⟨10.1103/PhysRevC.76.064904⟩. ⟨in2p3-00151908⟩

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