/ Experiment-Nucl nucl-ex/0601033


Identified hadron spectra at large transverse momentum in p+p and d+Au collisions at s(NN)**(1/2) = 200-GeV


Adams, J. (Birmingham U.) ; Aggarwal, M.M. (Panjab U.) ; Ahammed, Z. (Calcutta, VECC) ; Amonett, J. (Kent State U.) ; Anderson, B.D. (Kent State U.) ; Anderson, M. (UC, Davis) ; Arkhipkin, D. (Dubna, JINR) ; Averichev, G.S. (Dubna, JINR) ; Badyal, S.K. (Jammu U.) ; Bai, Y. (Utrecht U.) ; Balewski, J. (Indiana U.) ; Barannikova, O. (Purdue U.) ; Barnby, L.S. (Birmingham U.) ; Baudot, J. (Strasbourg, IReS) ; Bekele, S. (Ohio State U.) ; Belaga, V.V. (Dubna, JINR) ; Bellingeri-Laurikainen, A. (SUBATECH, Nantes) ; Bellwied, R. (Wayne State U.) ; Bezverkhny, B.I. (Yale U.) ; Bharadwaj, S. (Rajasthan U.) ; Bhasin, A. (Jammu U.) ; Bhati, A.K. (Panjab U.) ; Bichsel, H. (Washington U., Seattle) ; Bielcik, J. (Yale U.) ; Bielcikova, J. (Yale U.) ; Billmeier, A. (Wayne State U.) ; Bland, L.C. (Brookhaven) ; Blyth, C.O. (Birmingham U.) ; Blyth, S.L. (LBL, Berkeley) ; Bonner, B.E. (Rice U.) ; Botje, M. (Utrecht U.) ; Bouchet, J. (SUBATECH, Nantes) ; Brandin, A.V. (Moscow Phys. Eng. Inst.) ; Bravar, A. (Brookhaven) ; Bystersky, M. (Rez, Nucl. Phys. Inst.) ; Cadman, R.V. (Argonne) ; Cai, X.Z. (SINAP, Shanghai) ; Caines, H. (Yale U.) ; Calderon de la Barca Sanchez, M. (UC, Davis) ; Castillo, J. (Utrecht U.) ; Catu, O. (Yale U.) ; Cebra, D. (UC, Davis) ; Chajecki, Z. (Ohio State U.) ; Chaloupka, P. (Rez, Nucl. Phys. Inst.) ; Chattopadhyay, S. (Calcutta, VECC) ; Chen, H.F. (Hefei, CUST) ; Chen, J.H. (SINAP, Shanghai) ; Chen, Y. (UCLA) ; Cheng, J. (Tsinghua U., Beijing) ; Cherney, M. (Creighton U.) ; Chikanian, A. (Yale U.) ; Choi, H.A. (Pusan Natl. U.) ; Christie, W. (Brookhaven) ; Coffin, J.P. (Strasbourg, IReS) ; Cormier, T.M. (Wayne State U.) ; Cosentino, M.R. (Sao Paulo U.) ; Cramer, J.G. (Washington U., Seattle) ; Crawford, H.J. (UC, Berkeley) ; Das, D. (Calcutta, VECC) ; Das, S. (Calcutta, VECC) ; Daugherity, M. (Texas U.) ; de Moura, M.M. (Sao Paulo U.) ; Dedovich, T.G. (Dubna, JINR) ; DePhillips, M. (Brookhaven) ; Derevschikov, A.A. (Serpukhov, IHEP) ; Didenko, L. (Brookhaven) ; Dietel, T. (Frankfurt U.) ; Djawotho, P. (Indiana U.) ; Dogra, S.M. (Jammu U.) ; Dong, W.J. (UCLA) ; Dong, X. (Hefei, CUST) ; Draper, J.E. (UC, Davis) ; Du, F. (Yale U.) ; Dunin, V.B. (Dubna, JINR) ; Dunlop, J.C. (Brookhaven) ; Dutta Mazumdar, M.R. (Calcutta, VECC) ; Eckardt, V. (Munich, Max Planck Inst.) ; Edwards, W.R. (LBL, Berkeley) ; Efimov, L.G. (Dubna, JINR) ; Emelianov, V. (Moscow Phys. Eng. Inst.) ; Engelage, J. (UC, Berkeley) ; Eppley, G. (Rice U.) ; Erazmus, B. (SUBATECH, Nantes) ; Estienne, M. (Strasbourg, IReS) ; Fachini, P. (Brookhaven) ; Fatemi, R. (MIT, LNS) ; Fedorisin, J. (Dubna, JINR) ; Filimonov, K. (LBL, Berkeley) ; Filip, P. (Rez, Nucl. Phys. Inst.) ; Finch, E. (Yale U.) ; Fine, V. (Brookhaven) ; Fisyak, Y. (Brookhaven) ; Fornazier, K.S.F. (Sao Paulo U.) ; Fu, J. (Hua-Zhong Normal U.) ; Gagliardi, C.A. (Texas A-M) ; Gaillard, L. (Birmingham U.) ; Gans, J. (Yale U.) ; Ganti, M.S. (Calcutta, VECC) ; Ghazikhanian, V. (UCLA) ; Ghosh, P. (Calcutta, VECC) ; Gonzalez, J.E. (UCLA) ; Gorbunov, Y.G. (Creighton U.) ; Gos, H. (Warsaw U. of Tech.) ; Grachov, O. (Wayne State U.) ; Grebenyuk, O. (Utrecht U.) ; Grosnick, D. (Valparaiso U., Indiana) ; Guertin, S.M. (UCLA) ; Guo, Y. (Wayne State U.) ; Gupta, A. (Jammu U.) ; Gupta, N. (Jammu U.) ; Gutierrez, T.D. (UC, Davis) ; Haag, B. (UC, Davis) ; Hallman, T.J. (Brookhaven) ; Hamed, A. (Wayne State U.) ; Harris, J.W. (Yale U.) ; He, W. (Indiana U.) ; Heinz, M. (Yale U.) ; Henry, T.W. (Texas A-M) ; Hepplemann, S. (Penn State U.) ; Hippolyte, B. (Strasbourg, IReS) ; Hirsch, A. (Purdue U.) ; Hjort, E. (LBL, Berkeley) ; Hoffmann, G.W. (Texas U.) ; Horner, M.J. (LBL, Berkeley) ; Huang, H.Z. (UCLA) ; Huang, S.L. (Hefei, CUST) ; Hughes, E.W. (Caltech) ; Humanic, T.J. (Ohio State U.) ; Igo, G. (UCLA) ; Jacobs, P. (LBL, Berkeley) ; Jacobs, W.W. (Indiana U.) ; Jakl, P. (Rez, Nucl. Phys. Inst.) ; Jia, F. (Lanzhou, Inst. Modern Phys.) ; Jiang, H. (UCLA) ; Jones, P.G. (Birmingham U.) ; Judd, E.G. (UC, Berkeley) ; Kabana, S. (SUBATECH, Nantes) ; Kang, K. (Tsinghua U., Beijing) ; Kapitan, J. (Rez, Nucl. Phys. Inst.) ; Kaplan, M. (Carnegie Mellon U.) ; Keane, D. (Kent State U.) ; Kechechyan, A. (Dubna, JINR) ; Khodyrev, V.Yu. (Serpukhov, IHEP) ; Kim, B.C. (Pusan Natl. U.) ; Kiryluk, J. (MIT, LNS) ; Kisiel, A. (Warsaw U. of Tech.) ; Kislov, E.M. (Dubna, JINR) ; Klein, S.R. (LBL, Berkeley) ; Koetke, D.D. (Valparaiso U., Indiana) ; Kollegger, T. (Frankfurt U.) ; Kopytine, M. (Kent State U.) ; Kotchenda, L. (Moscow Phys. Eng. Inst.) ; Kouchpil, V. (Rez, Nucl. Phys. Inst.) ; Kowalik, K.L. (LBL, Berkeley) ; Kramer, M. (City Coll., N.Y.) ; Kravtsov, P. (Moscow Phys. Eng. Inst.) ; Kravtsov, V.I. (Serpukhov, IHEP) ; Krueger, K. (Argonne) ; Kuhn, C. (Strasbourg, IReS) ; Kulikov, A.I. (Dubna, JINR) ; Kumar, A. (Panjab U.) ; Kuznetsov, A.A. (Dubna, JINR) ; Lamont, M.A.C. (Yale U.) ; Landgraf, J.M. (Brookhaven) ; Lange, S. (Frankfurt U.) ; Laue, F. (Brookhaven) ; Lauret, J. (Brookhaven) ; Lebedev, A. (Brookhaven) ; Lednicky, R. (Dubna, JINR) ; Lee, C.H. (Pusan Natl. U.) ; Lehocka, S. (Dubna, JINR) ; LeVine, M.J. (Brookhaven) ; Li, C. (Hefei, CUST) ; Li, Q. (Wayne State U.) ; Li, Y. (Tsinghua U., Beijing) ; Lin, G. (Yale U.) ; Lindenbaum, S.J. (City Coll., N.Y.) ; Lisa, M.A. (Ohio State U.) ; Liu, F. (Hua-Zhong Normal U.) ; Liu, H. (Hefei, CUST) ; Liu, J. (Rice U.) ; Liu, L. (Hua-Zhong Normal U.) ; Liu, Z. (Hua-Zhong Normal U.) ; Ljubicic, T. (Brookhaven) ; Llope, W.J. (Rice U.) ; Long, H. (UCLA) ; Longacre, R.S. (Brookhaven) ; Lopez-Noriega, M. (Ohio State U.) ; Love, W.A. (Brookhaven) ; Lu, Y. (Hua-Zhong Normal U.) ; Ludlam, T. (Brookhaven) ; Lynn, D. (Brookhaven) ; Ma, G.L. (SINAP, Shanghai) ; Ma, J.G. (UCLA) ; Ma, Y.G. (SINAP, Shanghai) ; Magestro, D. (Ohio State U.) ; Mahajan, S. (Jammu U.) ; Mahapatra, D.P. (Bhubaneswar, Inst. Phys.) ; Majka, R. (Yale U.) ; Mangotra, L.K. (Jammu U.) ; Manweiler, R. (Valparaiso U., Indiana) ; Margetis, S. (Kent State U.) ; Markert, C. (Kent State U.) ; Martin, L. (SUBATECH, Nantes) ; Matis, H.S. (LBL, Berkeley) ; Matulenko, Yu.A. (Serpukhov, IHEP) ; McClain, C.J. (Argonne) ; McShane, T.S. (Creighton U.) ; Melnick, Yu. (Serpukhov, IHEP) ; Meschanin, A. (Serpukhov, IHEP) ; Miller, M.L. (MIT, LNS) ; Minaev, N.G. (Serpukhov, IHEP) ; Mioduszewski, S. (Texas A-M) ; Mironov, C. (Kent State U.) ; Mischke, A. (Utrecht U.) ; Mishra, D.K. (Bhubaneswar, Inst. Phys.) ; Mitchell, J. (Rice U.) ; Mohanty, B. (Calcutta, VECC) ; Molnar, L. (Purdue U.) ; Moore, C.F. (Texas U.) ; Morozov, D.A. (Serpukhov, IHEP) ; Munhoz, M.G. (Sao Paulo U.) ; Nandi, B.K. (Indian Inst. Tech., Mumbai) ; Nayak, S.K. (Jammu U.) ; Nayak, T.K. (Calcutta, VECC) ; Nelson, J.M. (Birmingham U.) ; Netrakanti, P.K. (Calcutta, VECC) ; Nikitin, V.A. (Dubna, JINR) ; Nogach, L.V. (Serpukhov, IHEP) ; Nurushev, S.B. (Serpukhov, IHEP) ; Odyniec, G. (LBL, Berkeley) ; Ogawa, A. (Panjab U.) ; Okorokov, V. (Moscow Phys. Eng. Inst.) ; Oldenburg, M. (LBL, Berkeley) ; Olson, D. (LBL, Berkeley) ; Pachr, M. (Rez, Nucl. Phys. Inst.) ; Pal, S.K. (Calcutta, VECC) ; Panebratsev, Y. (Dubna, JINR) ; Panitkin, S.Y. (Brookhaven) ; Pavlinov, A.I. (Wayne State U.) ; Pawlak, T. (Warsaw U. of Tech.) ; Peitzmann, T. (Utrecht U.) ; Perevoztchikov, V. (Brookhaven) ; Perkins, C. (UC, Berkeley) ; Peryt, W. (Warsaw U. of Tech.) ; Petrov, V.A. (Wayne State U.) ; Phatak, S.C. (Bhubaneswar, Inst. Phys.) ; Picha, R. (UC, Davis) ; Planinic, M. (Zagreb U.) ; Pluta, J. (Warsaw U. of Tech.) ; Poljak, N. (Zagreb U.) ; Porile, N. (Purdue U.) ; Porter, J. (Washington U., Seattle) ; Poskanzer, A.M. (LBL, Berkeley) ; Potekhin, M. (Brookhaven) ; Potrebenikova, E. (Dubna, JINR) ; Potukuchi, B.V.K.S. (Jammu U.) ; Prindle, D. (Washington U., Seattle) ; Pruneau, C. (Wayne State U.) ; Putschke, J. (LBL, Berkeley) ; Rakness, G. (Penn State U.) ; Raniwala, R. (Rajasthan U.) ; Raniwala, S. (Rajasthan U.) ; Ray, R.L. (Texas U.) ; Razin, S.V. (Dubna, JINR) ; Reinnarth, J. (SUBATECH, Nantes) ; Relyea, D. (Caltech) ; Retiere, F. (LBL, Berkeley) ; Ridiger, A. (Moscow Phys. Eng. Inst.) ; Ritter, H.G. (LBL, Berkeley) ; Roberts, J.B. (Rice U.) ; Rogachevskiy, O.V. (Dubna, JINR) ; Romero, J.L. (UC, Davis) ; Rose, A. (LBL, Berkeley) ; Roy, C. (SUBATECH, Nantes) ; Ruan, L. (LBL, Berkeley) ; Russcher, M.J. (Utrecht U.) ; Sahoo, R. (Bhubaneswar, Inst. Phys.) ; Sakrejda, I. (LBL, Berkeley) ; Salur, S. (Yale U.) ; Sandweiss, J. (Yale U.) ; Sarsour, M. (Texas A-M) ; Savin, I. (Dubna, JINR) ; Sazhin, P.S. (Dubna, JINR) ; Schambach, J. (Texas U.) ; Scharenberg, R.P. (Purdue U.) ; Schmitz, N. (Munich, Max Planck Inst.) ; Schweda, K. (LBL, Berkeley) ; Seger, J. (Creighton U.) ; Selyuzhenkov, I. (Wayne State U.) ; Seyboth, P. (Munich, Max Planck Inst.) ; Shabetai, A. (LBL, Berkeley) ; Shahaliev, E. (Dubna, JINR) ; Shao, M. (Hefei, CUST) ; Sharma, M. (Panjab U.) ; Shen, W.Q. (SINAP, Shanghai) ; Shimanskiy, S.S. (Dubna, JINR) ; Sichtermann, E. (LBL, Berkeley) ; Simon, F. (MIT, LNS) ; Singaraju, R.N. (Calcutta, VECC) ; Smirnov, N. (Yale U.) ; Snellings, R. (Utrecht U.) ; Sood, G. (Valparaiso U., Indiana) ; Sorensen, P. (Brookhaven) ; Sowinski, J. (Indiana U.) ; Speltz, J. (Strasbourg, IReS) ; Spinka, H.M. (Argonne) ; Srivastava, B. (Purdue U.) ; Stadnik, A. (Dubna, JINR) ; Stanislaus, T.D.S. (Valparaiso U., Indiana) ; Stock, R. (Frankfurt U.) ; Stolpovsky, A. (Wayne State U.) ; Strikhanov, M. (Moscow Phys. Eng. Inst.) ; Stringfellow, B. (Purdue U.) ; Suaide, A.A.P. (Sao Paulo U.) ; Sugarbaker, E. (Ohio State U.) ; Sumbera, M. (Rez, Nucl. Phys. Inst.) ; Sun, Z. (Lanzhou, Inst. Modern Phys.) ; Surrow, B. (MIT, LNS) ; Swanger, M. (Creighton U.) ; Symons, T.J.M. (LBL, Berkeley) ; Szanto de Toledo, A. (Sao Paulo U.) ; Tai, A. (UCLA) ; Takahashi, J. (Sao Paulo U.) ; Tang, A.H. (Brookhaven) ; Tarnowsky, T. (Purdue U.) ; Thein, D. (UCLA) ; Thomas, J.H. (LBL, Berkeley) ; Timmins, A.R. (Birmingham U.) ; Timoshenko, S. (Moscow Phys. Eng. Inst.) ; Tokarev, M. (Dubna, JINR) ; Trainor, T.A. (Washington U., Seattle) ; Trentalange, S. (UCLA) ; Tribble, R.E. (Texas A-M) ; Tsai, O.D. (UCLA) ; Ulery, J. (Purdue U.) ; Ullrich, T. (Brookhaven) ; Underwood, D.G. (Argonne) ; Van Buren, G. (Brookhaven) ; van der Kolk, N. (Utrecht U.) ; van Leeuwen, M. (LBL, Berkeley) ; Vander Molen, A.M. (Michigan State U.) ; Varma, R. (Indian Inst. Tech., Mumbai) ; Vasilevski, I.M. (Dubna, JINR) ; Vasiliev, A.N. (Serpukhov, IHEP) ; Vernet, R. (Strasbourg, IReS) ; Vigdor, S.E. (Indiana U.) ; Viyogi, Y.P. (Calcutta, VECC) ; Vokal, S. (Dubna, JINR) ; Voloshin, S.A. (Wayne State U.) ; Waggoner, W.T. (Creighton U.) ; Wang, F. (Purdue U.) ; Wang, G. (Kent State U.) ; Wang, J.S. (Lanzhou, Inst. Modern Phys.) ; Wang, X.L. (Hefei, CUST) ; Wang, Y. (Tsinghua U., Beijing) ; Watson, J.W. (Kent State U.) ; Webb, J.C. (Indiana U.) ; Westfall, G.D. (Michigan State U.) ; Wetzler, A. (LBL, Berkeley) ; Whitten, C. (UCLA) ; Wieman, H. (LBL, Berkeley) ; Wissink, S.W. (Indiana U.) ; Witt, R. (Yale U.) ; Wood, J. (UCLA) ; Wu, J. (Hefei, CUST) ; Xu, N. (LBL, Berkeley) ; Xu, Q.H. (LBL, Berkeley) ; Xu, Z. (Brookhaven) ; Yepes, P. (Rice U.) ; Yoo, I.K. (Pusan Natl. U.) ; Yurevich, V.I. (Dubna, JINR) ; Zborovsky, I. (Rez, Nucl. Phys. Inst.) ; Zhan, W. (Lanzhou, Inst. Modern Phys.) ; Zhang, H. (Brookhaven) ; Zhang, W.M. (Kent State U.) ; Zhang, Y. (Hefei, CUST) ; Zhang, Z.P. (Hefei, CUST) ; Zhao, Y. (Hefei, CUST) ; Zhong, C. (SINAP, Shanghai) ; Zoulkarneev, R. (Dubna, JINR) ; Zoulkarneeva, Y. (Dubna, JINR) ; Zubarev, A.N. (Dubna, JINR) ; Zuo, J.X. (SINAP, Shanghai)

Published in: Phys.Lett.
Year: 2006
Vol.: B637
Page No: 161-169
Pages: 19

Abstract: We present the transverse momentum (pT) spectra for identified charged pions, protons and anti-protons from p+p and d+Au collisions at \sqrts_NN = 200 GeV. The spectra are measured around midrapidity (|y| < 0.5) over the range of 0.3 < pT < 10 GeV/c with particle identification from the ionization energy loss and its relativistic rise in the Time Projection Chamber and Time-of-Flight in STAR. The charged pion and proton+anti-proton spectra at high pT in p+p and d+Au collisions are in good agreement with a phenomenological model (EPOS) and with the next-to-leading order perturbative quantum chromodynamic (NLO pQCD) calculations with a specific fragmentation scheme and factorization scale. We found that all proton, anti-proton and charged pion spectra in p+p collisions follow xT-scalings for the momentum range where particle production is dominated by hard processes (pT > 2 GeV/c). The nuclear modification factor around midrapidity are found to be greater than unity for charged pions and to be even larger for protons at 2 < pT < 5 GeV/c.

Keyword(s): Particle production ; Perturbative quantum chromodynamics ; Fragmentation function ; Cronin effect and x(T)-scaling

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