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151. Center of mass energy and system-size dependence of photon production at forward rapidity at RHIC

Author: G. Van Buren, C-Q. Li, O. Catu, R. P. Scharenberg, Christina Markert, S. S. Shi, A. Kocoloski, J. L. Drachenberg, S. Dash, Shoko Sakai, H. S. Matis, W. Christie, T. W. Ludlam, J. M. Nelson, W. W. Jacobs, A. Feng, Jay Roberts, W. M. Zhang, Andrey Vasiliev, Russell Richard Betts, D. G. Underwood, L. H. Tarini, K. Kajimoto, B. Haag, M. Zawisza, H. M. Spinka, I. Sakrejda, P. Fachini, K. S.F.F. Guimaraes, G. Wang, Yan Li, P. Seyboth, Jing-Han Chen, W. Peryt, E. J. Garcia-Solis, J. W. Harris, J. Lauret, J. X. Zuo, Madan M. Aggarwal, Fuqiang Wang, Janet Elizabeth Seger, A. M. Hoffman, R. Derradi de Souza, B. I. Abelev, M. Shao, T. J. Hallman, J. Cheng, T. J. M. Symons, Jongmin Lee, R. L. Ray, D. Staszak, I. Bnzarov, J. H. Thomas, Zebo Tang, O. I. Mall, N. Xu, P. Filip, Y. Yang, William Axel Leight, Souvik Das, Mateusz Andrzej Ploskon, R. Witt, L. C. De Silva, Sergey Voloshin, Christine Nattrass, S. LaPointe, N. Li, S. Mioduszewski, R. Lednicky, T. Tarnowsky, P. Djawotho, Yong Xu, A. Gordon, Anju Bhasin, R. P. Redwine, S. R. Klein, T. Ljubicic, N. L. Subba, D. L. Olson, V. Yu Khodyrev, M. J. M. Codrington, D. Kettler, B. Grube, G. S. Averichev, Z. Chajecki, M. A.C. Lamont, L. K. Mangotra, Jorn Henning Putschke, P. Pile, Donald M. McDonald, B. K. Srivastava, A. V. Brandin, P. Yepes, W. Guryn, H. Okada, R. Manweiler, Hongfang Liu, A. Lebedev, H. Caines, Sudhir Raniwala, G. D. Westfall, Xiangming Sun, A. Shabetai, Wei Xie, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, A. Chikanian, A. H. Tang, A. A. Derevschikov, A. L. Trattner, Haiyan Wang, Q. H. Xu, S. E. Vigdor, A. M. Poskanzer, Petr Jákl, Boris Hippolyte, W. L. Zhan, O. G. Grebenyuk, A. K. Bhati, D. Keane, C. Perkins, J. Joseph, Christian Claude Kuhn, H. Z. Huang, G. M.S. Vasconcelos, Jana Bielcikova, X. Z. Cai, S. Vokal, Frank Simon, D. Tlusty, A. Kechechyan, Andre Mischke, Mirko Planinic, V. N. Tram, J. Baudot, J. C. Dunlop, J. Fedorisin, Nikolai Smirnov, M. Sarsour, T. Peitzmann, Z. J. Sun, P. Sorensen, X. H. Shi, L. G. Efimov, M. Krus, David Jonathan Hofman, H. Masui, I. Selyuzhenkov, A. G. Knospe, Zubayer Ahammed, M. J. LeVine, P. R. Pujahari, T. P. Burton, R. N. Singaraju, Q. Wang, F. Liu, L. Huo, A. P. Meschanin, Y. Pandit, Peter Graham Jones, M. J. Russcher, R. Cendejas, C-H. Lee, T. K. Nayak, T. S. McShane, J. Kiryluk, Z. Xu, G. Lin, X. L. Wang, D. Thein, Peter Martin Jacobs, Bernd Surrow, Y. N. Gorbunov, C. Zhong, K. Kang, Ermes Braidot, R. D. Majka, J. Sowinski, L. Didenko, J. Takahashi, D. A. Morozov, S. K. Badyal, S. B. Nurushev, Anik Gupta, N. Schmitz, Jing Zhou, B. E. Bonner, M. Kopytine, J. Y. Chen, E. Shahaliev, S. Margetis, R. F. Clarke, J. Schambach, A. Ridiger, M. Tokarev, O. D. Tsai, M. van Leeuwen, X. Dong, S. K. Pal, B. D. Anderson, A. Szanto de Toledo, J. Kapitan, Pawan Kumar Netrakanti, K. Yip, C. A. Whitten, Feng Jin, D. Arkhipkin, B. Erazmus, M. Elnimr, Sergey Timoshenko, Y. Fisyak, A. R. Timmins, S. M. Dogra, A. Hamed, J. S. Wang, Adam Ryszard Kisiel, M. C. Cervantes, R. Corliss, Wolfgang Korsch, C. A. Gagliardi, M. J. Skoby, Frank Jm Geurts, E. Elhalhuli, Neeraj Gupta, D. Cebra, S. Trentalange, M. Estienne, N. K. Pruthi, S. Baumgart, D. D. Koetke, T. D. S. Stanislaus, H. H. Wieman, T. Pawlak, R. S. Longacre, E. P. Sichtermann, J. E. Draper, S. J. Lindenbaum, A. Iordanova, H. J. Crawford, M. Pachr, Marcelo Gameiro Munhoz, D. J. Prindle, E. Hjort, Y. F. Wu, G. Eppley, A. V. Alakhverdyants, J. Balewski, Rashmi Raniwala, J. Engelage, Xiaofeng Zhu, Donika Plyku, R. Fatemi, Michael Joseph Betancourt, Claude Andre Pruneau, R. Millner, Matthew Walker, M. Heinz, M. A. Lisa, Lee Stuart Barnby, Debasish Das, Raghunath Sahoo, Jifa Tian, Xuan Wang, J. Pluta, K. Krueger, Sevil Salur, Y. Wang, A. Ogawa, H. F. Chen, G. Igo, T. Ullrich, Thomas A. Trainor, Jaroslav Bielcik, M. Sharma, J. A. Vanfossen, L. Ruan, J. Bouchet, R. Zoulkarneev, Y. Panebratsev, A. Geromitsos, D. Grosnick, N. G. Minaev, V. Kouchpil, Premomoy Ghosh, J. M. Landgraf, V. Ghazikhanian, S. H. Zhang, L. Eun, Y. J. Sun, K. Kauder, W. He, M. R. Dutta Mazumdar, Basanta Kumar Nandi, Marek Bombara, O. V. Rogachevskiy, M. Cherney, Thomas Michael Cormier, Yi Zhang, R. E. Tribble, Lokesh Kumar, M. Strikhanov, Andrew Rose, Y. Zhao, J. L. Romero, Rolf K. Reed, Gerald W Hoffmann, S. Kabana, Y. P. Viyogi, B. Biritz, V. A. Okorokov, J. Konzer, Mitali Mondal, E. Finch, C. Roy, Ki-Seok Choi, W. A. Love, J. Sandweiss, J. G. Cramer, P. Chaloupka, T. J. Humanic, Qian Yue, R. Varma, Yu A. Matulenko, B. S. Page, D. P. Kikola, B. Stringfellow, B. V.K.S. Potukuchi, Yu-Gang Ma, Xuan Zhang, Jie Liu, I. Koralt, Hanna Paulina Zbroszczyk, L. V. Nogach, M. J. Ng, V. I. Kravtsov, G. Van Nieuwenhuizen, P. Kurnadi, D. R. Beavis, Zhenyu Zhang, M. R. Cosentino, F. Benedosso, T. G. Dedovich, T. Sakuma, S. C. Phatak, V. Fine, L. Kotchenda, S. Hepplemann, W. J. Llope, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, M. DePhillips, D. P. Mahapatra, R. S. Hollis, Michal Sumbera, S. W. Wissink, M. Calderon, Nikola Poljak, Bedangadas Mohanty, M. Wada, M. Bystersky, I. K. Yoo, D. R. Gangadharan, E. G. Judd, L. C. Bland, L. Liu, C. L. Jones, M. C. Suarez, J. Ulery, H. G. Ritter, O. Barannikova, R. Bellwied, L. Gaillard, M. S. Daugherity, Guo-Liang Ma, A. S. Hirsch, J. C. Webb, P. Kravtsov, S. Bueltmann, Elena Bruna, F. Videbæk, G. Webb, Sukalyan Chattopadhyay, M. S. Ganti, Chitrasen Jena, Y. P. Lu, V. Perevoztchikov, Massachusetts Institute of Technology. Department of Physics, Massachusetts Institute of Technology. Laboratory for Nuclear Science, Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), STAR, and Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear and High Energy Physics, Particle physics, Photon, Particle Production, Meson, Hadron, FOS: Physical sciences, Elementary particle, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Nuclear physics, heavy ion, scattering, gold, 0103 physical sciences, Rapidity, Limiting Fragmentation, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Condensate, Physics, Photons, Plus Au Collisions, Nucleus-Nucleus Collisions, Matter, 010308 nuclear & particles physics, Heavy-Ion Collisions, Detector, Forward Rapidity, Collaboration, Charged particle, Multiplicity, Pseudorapidity, Perspective, Quark-Gluon Plasma, High Energy Physics::Experiment, Nucleon
Abstract: We present the multiplicity and pseudorapidity distributions of photons produced in Au+Au and Cu+Cu collisions at \sqrt{s_NN} = 62.4 and 200 GeV. The photons are measured in the region -3.7 < \eta < -2.3 using the photon multiplicity detector in the STAR experiment at RHIC. The number of photons produced per average number of participating nucleon pairs increases with the beam energy and is independent of the collision centrality. For collisions with similar average numbers of participating nucleons the photon multiplicities are observed to be similar for Au+Au and Cu+Cu collisions at a given beam energy. The ratios of the number of charged particles to photons in the measured pseudorapidity range are found to be 1.4 +/- 0.1 and 1.2 +/- 0.1 for \sqrt{s_NN} = 62.4 GeV and 200 GeV, respectively. The energy dependence of this ratio could reflect varying contributions from baryons to charged particles, while mesons are the dominant contributors to photon production in the given kinematic region. The photon pseudorapidity distributions normalized by average number of participating nucleon pairs, when plotted as a function of \eta - ybeam, are found to follow a longitudinal scaling independent of centrality and colliding ion species at both beam energies., Comment: 19 pages and 5 figures, Accepted for publication in Nuclear Physics A
Published: 2010

152. Three-Particle Coincidence of the Long Range Pseudorapidity Correlation in High Energy Nucleus-Nucleus Collisions

Author: B. I. Abelev, M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, B. D. Anderson, D. Arkhipkin, G. S. Averichev, J. Balewski, O. Barannikova, L. S. Barnby, S. Baumgart, D. R. Beavis, R. Bellwied, M. J. Betancourt, R. R. Betts, A. Bhasin, A. K. Bhati, H. Bichsel, J. Bielcik, J. Bielcikova, B. Biritz, L. C. Bland, I. Bnzarov, B. E. Bonner, J. Bouchet, E. Braidot, A. V. Brandin, A. Bridgeman, E. Bruna, S. Bueltmann, T. P. Burton, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, O. Catu, D. Cebra, R. Cendejas, M. C. Cervantes, Z. Chajecki, P. Chaloupka, S. Chattopadhyay, H. F. Chen, J. H. Chen, J. Y. Chen, J. Cheng, M. Cherney, A. Chikanian, K. E. Choi, W. Christie, P. Chung, R. F. Clarke, M. J. M. Codrington, R. Corliss, J. G. Cramer, H. J. Crawford, D. Das, S. Dash, A. Davila Leyva, L. C. De Silva, R. R. Debbe, T. G. Dedovich, M. DePhillips, A. A. Derevschikov, R. Derradi de Souza, L. Didenko, P. Djawotho, S. M. Dogra, X. Dong, J. L. Drachenberg, J. E. Draper, J. C. Dunlop, M. R. Dutta Mazumdar, L. G. Efimov, E. Elhalhuli, M. Elnimr, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, L. Eun, P. Fachini, R. Fatemi, J. Fedorisin, R. G. Fersch, P. Filip, E. Finch, V. Fine, Y. Fisyak, C. A. Gagliardi, D. R. Gangadharan, M. S. Ganti, E. J. Garcia-Solis, A. Geromitsos, F. Geurts, V. Ghazikhanian, P. Ghosh, Y. N. Gorbunov, A. Gordon, O. Grebenyuk, D. Grosnick, B. Grube, S. M. Guertin, A. Gupta, N. Gupta, W. Guryn, B. Haag, T. J. Hallman, A. Hamed, L-X. Han, J. W. Harris, J. P. Hays-Wehle, M. Heinz, S. Heppelmann, A. Hirsch, E. Hjort, A. M. Hoffman, G. W. Hoffmann, D. J. Hofman, R. S. Hollis, H. Z. Huang, T. J. Humanic, L. Huo, G. Igo, A. Iordanova, P. Jacobs, W. W. Jacobs, P. Jakl, C. Jena, F. Jin, C. L. Jones, P. G. Jones, J. Joseph, E. G. Judd, S. Kabana, K. Kajimoto, K. Kang, J. Kapitan, K. Kauder, D. Keane, A. Kechechyan, D. Kettler, V. Yu. Khodyrev, D. P. Kikola, J. Kiryluk, A. Kisiel, A. G. Knospe, A. Kocoloski, D. D. Koetke, T. Kollegger, J. Konzer, M. Kopytine, I. Koralt, W. Korsch, L. Kotchenda, V. Kouchpil, P. Kravtsov, V. I. Kravtsov, K. Krueger, M. Krus, L. Kumar, P. Kurnadi, M. A. C. Lamont, J. M. Landgraf, S. LaPointe, J. Lauret, A. Lebedev, R. Lednicky, C-H. Lee, J. H. Lee, W. Leight, M. J. LeVine, C. Li, L. Li, N. Li, W. Li, X. Li, Y. Li, Z. Li, G. Lin, S. J. Lindenbaum, M. A. Lisa, F. Liu, H. Liu, J. Liu, T. Ljubicic, W. J. Llope, R. S. Longacre, W. A. Love, Y. Lu, T. Ludlam, G. L. Ma, Y. G. Ma, D. P. Mahapatra, R. Majka, O. I. Mall, L. K. Mangotra, R. Manweiler, S. Margetis, C. Markert, H. Masui, H. S. Matis, Yu. A. Matulenko, D. McDonald, T. S. McShane, A. Meschanin, R. Milner, N. G. Minaev, S. Mioduszewski, A. Mischke, M. K. Mitrovski, B. Mohanty, D. A. Morozov, M. G. Munhoz, B. K. Nandi, C. Nattrass, T. K. Nayak, J. M. Nelson, P. K. Netrakanti, M. J. Ng, L. V. Nogach, S. B. Nurushev, G. Odyniec, A. Ogawa, H. Okada, V. Okorokov, D. Olson, M. Pachr, B. S. Page, S. K. Pal, Y. Pandit, Y. Panebratsev, T. Pawlak, T. Peitzmann, V. Perevoztchikov, C. Perkins, W. Peryt, S. C. Phatak, P. Pile, M. Planinic, M. A. Ploskon, J. Pluta, D. Plyku, N. Poljak, A. M. Poskanzer, B. V. K. S. Potukuchi, C. B. Powell, D. Prindle, C. Pruneau, N. K. Pruthi, P. R. Pujahari, J. Putschke, R. Raniwala, S. Raniwala, R. L. Ray, R. Redwine, R. Reed, J. M. Rehberg, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, A. Rose, C. Roy, L. Ruan, R. Sahoo, S. Sakai, I. Sakrejda, T. Sakuma, S. Salur, J. Sandweiss, E. Sangaline, J. Schambach, R. P. Scharenberg, N. Schmitz, T. R. Schuster, J. Seele, J. Seger, I. Selyuzhenkov, P. Seyboth, E. Shahaliev, M. Shao, M. Sharma, S. S. Shi, E. P. Sichtermann, F. Simon, R. N. Singaraju, M. J. Skoby, N. Smirnov, P. Sorensen, J. Sowinski, H. M. Spinka, B. Srivastava, T. D. S. Stanislaus, D. Staszak, J. R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A. A. P. Suaide, M. C. Suarez, N. L. Subba, M. Sumbera, X. M. Sun, Y. Sun, Z. Sun, B. Surrow, T. J. M. Symons, A. Szanto de Toledo, J. Takahashi, A. H. Tang, Z. Tang, L. H. Tarini, T. Tarnowsky, D. Thein, J. H. Thomas, J. Tian, A. R. Timmins, S. Timoshenko, D. Tlusty, M. Tokarev, V. N. Tram, S. Trentalange, R. E. Tribble, O. D. Tsai, J. Ulery, T. Ullrich, D. G. Underwood, G. Van Buren, G. van Nieuwenhuizen, M. van Leeuwen, J. A. Vanfossen, R. Varma, G. M. S. Vasconcelos, A. N. Vasiliev, F. Videbæk, Y. P. Viyogi, S. Vokal, M. Wada, M. Walker, F. Wang, G. Wang, H. Wang, J. S. Wang, Q. Wang, X. Wang, X. L. Wang, Y. Wang, G. Webb, J. C. Webb, G. D. Westfall, C. Whitten, H. Wieman, E. Wingfield, S. W. Wissink, R. Witt, Y. Wu, W. Xie, N. Xu, Q. H. Xu, W. Xu, Y. Xu, Z. Xu, L. Xue, Y. Yang, P. Yepes, K. Yip, I-K. Yoo, Q. Yue, M. Zawisza, H. Zbroszczyk, W. Zhan, S. Zhang, W. M. Zhang, X. P. Zhang, Y. Zhang, Z. P. Zhang, J. Zhao, C. Zhong, J. Zhou, W. Zhou, X. Zhu, Y-H. Zhu, R. Zoulkarneev, Y. Zoulkarneeva, Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and STAR
Subjects: Nuclear Theory, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, Coincidence, deuteron gold transverse momentum, High Energy Physics - Experiment, Nuclear physics, Nuclear Theory (nucl-th), Charge ordering, High Energy Physics - Experiment (hep-ex), (3particle) impact parameter, High Energy Physics - Phenomenology (hep-ph), trigger heavy ion, scattering correlation, long-range rapidity, correlation correlation, dependence STAR Brookhaven RHIC Coll 200 GeV-cms/nucleon, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Physics, Range (particle radiation), 010308 nuclear & particles physics, Ridge (differential geometry), NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, High Energy Physics - Phenomenology, Deuterium, Pseudorapidity, Physics::Space Physics, Particle, High Energy Physics::Experiment, Atomic physics, Event (particle physics)
Abstract: We report the first three-particle coincidence measurement in pseudorapidity ($\Delta\eta$) between a high transverse momentum ($p_{\perp}$) trigger particle and two lower $p_{\perp}$ associated particles within azimuth $\mid$$\Delta\phi$$\mid$$, Comment: 7 pages, 4 figures
Published: 2010

153. Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations

Author: Anik Gupta, X. Zhu, M. J. Skoby, Frank Jm Geurts, E. Elhalhuli, Mateusz Andrzej Ploskon, Jifa Tian, R. Witt, S. Mioduszewski, V. Yu Khodyrev, Xiangming Sun, Subrata Pal, Donald M. McDonald, B. K. Srivastava, B. Erazmus, S. Bueltmann, M. DePhillips, Boris Hippolyte, B. D. Anderson, L. H. Tarini, J. G. Cramer, Michal Sumbera, B. Grube, W. Guryn, O. G. Grebenyuk, Neeraj Gupta, D. Cebra, K. Yip, J. S. Wang, N. K. Pruthi, J. L. Drachenberg, Russell Richard Betts, J. Fedorisin, D. G. Underwood, Lijuan Ruan, S. Zhang, A. G. Knospe, M. Shao, Elena Bruna, T. J. Hallman, J. Cheng, T. J. M. Symons, L. C. De Silva, S. Trentalange, Basanta Kumar Nandi, P. Fachini, M. Estienne, A. Szanto de Toledo, J. Kapitan, A. R. Timmins, S. M. Dogra, L. Kotchenda, A. Feng, T. Tarnowsky, T. Pawlak, A. V. Alakhverdyants, K. S.F.F. Guimaraes, F. Videbæk, A. Ridiger, S. W. Wissink, B. Biritz, G. Eppley, W. Christie, L. C. Bland, Jay Roberts, A. K. Bhati, D. Keane, G. Webb, Q. H. Xu, Nikolai Smirnov, B. Haag, K. Kang, Xiaoping Zhang, Nikola Poljak, Sukalyan Chattopadhyay, L. K. Mangotra, I. Bnzarov, V. A. Okorokov, P. R. Pujahari, H. Bichsel, J. Pluta, M. S. Ganti, G. Odyniec, L. G. Efimov, Y. Zoulkarneeva, Zebo Tang, T. P. Burton, O. I. Mall, W. M. Zhang, Andrey Vasiliev, Jorn Henning Putschke, A. V. Brandin, S. Heppelmann, T. S. McShane, H. Okada, Chitrasen Jena, Haiyan Wang, R. Manweiler, Hongfang Liu, P. Kurnadi, C-H. Lee, T. K. Nayak, C. Roy, Z. Chajecki, R. N. Singaraju, Y. P. Lu, William Axel Leight, B. E. Bonner, Zhenyu Zhang, J. W. Harris, V. Perevoztchikov, S. E. Vigdor, Christian Claude Kuhn, L. Huo, A. P. Meschanin, X. Z. Cai, M. R. Cosentino, O. D. Tsai, S. Baumgart, L. Liu, Q. Wang, C. L. Jones, C. Perkins, A. M. Poskanzer, S. R. Klein, X. L. Wang, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, R. E. Tribble, M. J. Russcher, N. L. Subba, Matthew Walker, D. D. Koetke, J. E. Draper, Y. Fisyak, I. K. Yoo, D. L. Olson, Guo-Liang Ma, F. Benedosso, M. Elnimr, M. C. Cervantes, T. Peitzmann, A. Kechechyan, Andre Mischke, C. Zhong, Gerald W Hoffmann, Janet Elizabeth Seger, D. P. Mahapatra, David Jonathan Hofman, J. C. Dunlop, A. M. Hoffman, R. S. Hollis, Y. J. Sun, M. C. Suarez, H. Masui, V. Ghazikhanian, P. Yepes, I. Sakrejda, R. Milner, P. Chaloupka, M. Krus, R. Cendejas, K. Kajimoto, D. Thein, A. A. Derevschikov, S. Kabana, A. S. Hirsch, Zubayer Ahammed, J. C. Webb, M. J. LeVine, Y. P. Viyogi, J. X. Zuo, Anju Bhasin, Sergei A. Voloshin, P. Kravtsov, B. V.K.S. Potukuchi, M. Kopytine, A. Chikanian, T. J. Humanic, R. P. Redwine, Yu-Gang Ma, T. G. Dedovich, A. H. Tang, V. N. Tram, Jing Zhou, J. Engelage, Jana Bielcikova, X. Dong, Peter Martin Jacobs, Y. Yang, S. LaPointe, H. Z. Huang, S. Vokal, N. Li, D. R. Gangadharan, T. Sakuma, Christine Nattrass, Marcelo Gameiro Munhoz, D. J. Prindle, Qian Yue, S. C. Phatak, W. J. Llope, A. Lebedev, J. Sowinski, A. Gordon, E. G. Judd, A. Geromitsos, Premomoy Ghosh, Sevil Salur, Y. Wang, J. Takahashi, D. Arkhipkin, A. Hamed, R. Varma, P. Sorensen, V. Fine, X. H. Shi, T. D. S. Stanislaus, Yu A. Matulenko, Peter Graham Jones, A. Iordanova, M. Calderon De La Barca Sanchez, J. M. Landgraf, O. Catu, S. B. Nurushev, B. S. Page, Donika Plyku, M. A. Lisa, D. P. Kikola, H. H. Wieman, B. Stringfellow, M. Strikhanov, L. Didenko, Bedangadas Mohanty, J. Baudot, J. Kiryluk, J. Konzer, G. Van Buren, Ki-Seok Choi, A. Kocoloski, S. Dash, G. Wang, Jie Liu, Marek Bombara, J. Sandweiss, D. A. Morozov, P. Seyboth, S. S. Shi, Jongmin Lee, R. L. Ray, M. Zawisza, H. M. Spinka, Hanna Paulina Zbroszczyk, D. R. Beavis, M. Wada, F. Liu, T. W. Ludlam, M. Bystersky, J. L. Romero, J. M. Nelson, E. J. Garcia-Solis, D. Staszak, M. S. Daugherity, I. Koralt, Yan Li, Jing-Han Chen, W. Peryt, R. D. Majka, L. V. Nogach, M. J. Ng, J. H. Thomas, V. I. Kravtsov, G. Van Nieuwenhuizen, J. Y. Chen, S. Margetis, R. F. Clarke, J. Schambach, R. Derradi de Souza, B. I. Abelev, C-Q. Li, R. P. Scharenberg, Christina Markert, H. S. Matis, T. Ljubicic, J. Ulery, E. Finch, D. Kettler, H. G. Ritter, Y. Panebratsev, D. Grosnick, V. Kouchpil, M. J. M. Codrington, O. Barannikova, R. Bellwied, W. W. Jacobs, H. Caines, Sudhir Raniwala, J. Lauret, G. S. Averichev, L. Gaillard, A. Shabetai, R. Lednicky, P. Djawotho, C. A. Whitten, Feng Jin, Z. J. Sun, Yi Zhang, E. Hjort, Y. F. Wu, R. Corliss, Rolf K. Reed, E. P. Sichtermann, D. Tlusty, Mirko Planinic, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, S. J. Lindenbaum, T. Ullrich, Y. N. Gorbunov, N. Xu, P. Filip, R. Zoulkarneev, S. Sakai, L. Eun, P. Pile, G. D. Westfall, Sergey Timoshenko, Petr Jákl, Wolfgang Korsch, Xuan Wang, A. Ogawa, H. F. Chen, Thomas A. Trainor, Mikhail Tokarev, Ermes Braidot, M. Sharma, Adam Ryszard Kisiel, Wei Xie, H. J. Crawford, R. Fatemi, Michael Joseph Betancourt, J. Joseph, K. Krueger, G. M.S. Vasconcelos, M. Sarsour, N. G. Minaev, J. A. Vanfossen, Y. Pandit, N. Schmitz, W. He, E. Shahaliev, M. Cherney, Thomas Michael Cormier, Lokesh Kumar, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, M. R. Dutta Mazumdar, O. V. Rogachevskiy, W. A. Love, I. Selyuzhenkov, Bernd Surrow, Pawan Kumar Netrakanti, C. A. Gagliardi, M. Pachr, Madan M. Aggarwal, Fuqiang Wang, Yong Xu, R. S. Longacre, W. L. Zhan, Frank Simon, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, G. Igo, J. Bouchet, K. Kauder, Andrew Rose, Y. Zhao, Z. Xu, G. Lin, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Nuclear reaction, Nuclear and High Energy Physics, Meson, Astrophysics::High Energy Astrophysical Phenomena, Hadron, FOS: Physical sciences, Parton, scattering Brookhaven RHIC Coll parton, 01 natural sciences, 7. Clean energy, associated production angular correlation, Nuclear physics, Pion, 0103 physical sciences, interaction gold charged particle, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], yield parton, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), ComputingMilieux_MISCELLANEOUS, Physics, 010308 nuclear & particles physics, path length STAR 200 GeV-cms/nucleon, hadroproduction charged particle, dependence heavy ion, Charged particle, p p, energy loss photon, direct production pi0, (charged particle photon) angular correlation, (charged particle pi0) transverse momentum, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, High Energy Physics::Experiment, Atomic physics, Relativistic Heavy Ion Collider, STAR detector
Abstract: Charged-particle spectra associated with direct photon ($\gamma_{dir} $) and $\pi^0$ are measured in $p$+$p$ and Au+Au collisions at center-of-mass energy $\sqrt{s_{_{NN}}}=200$ GeV with the STAR detector at RHIC. A hower-shape analysis is used to partially discriminate between $\gamma_{dir}$ and $\pi^0$. Assuming no associated charged particles in the $\gamma_{dir}$ direction (near side) and small contribution from fragmentation photons ($\gamma_{frag}$), the associated charged-particle yields opposite to $\gamma_{dir}$ (away side) are extracted. At mid-rapidity ($|\eta, Comment: submitted to Phys. Rev. Lett, 6 pages, 4 figures
Published: 2010

154. Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions ats=200 GeV

Author: B. I. Abelev, M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, B. D. Anderson, D. Arkhipkin, G. S. Averichev, J. Balewski, O. Barannikova, L. S. Barnby, S. Baumgart, D. R. Beavis, R. Bellwied, F. Benedosso, M. J. Betancourt, R. R. Betts, A. Bhasin, A. K. Bhati, H. Bichsel, J. Bielcik, J. Bielcikova, B. Biritz, L. C. Bland, B. E. Bonner, J. Bouchet, E. Braidot, A. V. Brandin, A. Bridgeman, E. Bruna, S. Bueltmann, I. Bunzarov, T. P. Burton, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, O. Catu, D. Cebra, R. Cendejas, M. C. Cervantes, Z. Chajecki, P. Chaloupka, S. Chattopadhyay, H. F. Chen, J. H. Chen, J. Y. Chen, J. Cheng, M. Cherney, A. Chikanian, K. E. Choi, W. Christie, P. Chung, R. F. Clarke, M. J. M. Codrington, R. Corliss, J. G. Cramer, H. J. Crawford, D. Das, S. Dash, A. Davila Leyva, L. C. De Silva, R. R. Debbe, T. G. Dedovich, M. DePhillips, A. A. Derevschikov, R. Derradi de Souza, L. Didenko, P. Djawotho, S. M. Dogra, X. Dong, J. L. Drachenberg, J. E. Draper, J. C. Dunlop, M. R. Dutta Mazumdar, L. G. Efimov, E. Elhalhuli, M. Elnimr, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, L. Eun, P. Fachini, R. Fatemi, J. Fedorisin, R. G. Fersch, P. Filip, E. Finch, V. Fine, Y. Fisyak, C. A. Gagliardi, D. R. Gangadharan, M. S. Ganti, E. J. Garcia-Solis, A. Geromitsos, F. Geurts, V. Ghazikhanian, P. Ghosh, Y. N. Gorbunov, A. Gordon, O. Grebenyuk, D. Grosnick, B. Grube, S. M. Guertin, A. Gupta, N. Gupta, W. Guryn, B. Haag, T. J. Hallman, A. Hamed, L.-X. Han, J. W. Harris, J. P. Hays-Wehle, M. Heinz, S. Heppelmann, A. Hirsch, E. Hjort, A. M. Hoffman, G. W. Hoffmann, D. J. Hofman, R. S. Hollis, H. Z. Huang, T. J. Humanic, L. Huo, G. Igo, A. Iordanova, P. Jacobs, W. W. Jacobs, P. Jakl, C. Jena, F. Jin, C. L. Jones, P. G. Jones, J. Joseph, E. G. Judd, S. Kabana, K. Kajimoto, K. Kang, J. Kapitan, K. Kauder, D. Keane, A. Kechechyan, D. Kettler, D. P. Kikola, J. Kiryluk, A. Kisiel, S. R. Klein, A. G. Knospe, A. Kocoloski, D. D. Koetke, T. Kollegger, J. Konzer, M. Kopytine, I. Koralt, W. Korsch, L. Kotchenda, V. Kouchpil, P. Kravtsov, K. Krueger, M. Krus, L. Kumar, P. Kurnadi, M. A. C. Lamont, J. M. Landgraf, S. LaPointe, J. Lauret, A. Lebedev, R. Lednicky, C.-H. Lee, J. H. Lee, W. Leight, M. J. LeVine, C. Li, L. Li, N. Li, W. Li, X. Li, Y. Li, Z. Li, G. Lin, S. J. Lindenbaum, M. A. Lisa, F. Liu, H. Liu, J. Liu, T. Ljubicic, W. J. Llope, R. S. Longacre, W. A. Love, Y. Lu, G. L. Ma, Y. G. Ma, D. P. Mahapatra, R. Majka, O. I. Mall, L. K. Mangotra, R. Manweiler, S. Margetis, C. Markert, H. Masui, H. S. Matis, Yu. A. Matulenko, D. McDonald, T. S. McShane, A. Meschanin, R. Milner, N. G. Minaev, S. Mioduszewski, A. Mischke, M. K. Mitrovski, B. Mohanty, M. M. Mondal, D. A. Morozov, M. G. Munhoz, B. K. Nandi, C. Nattrass, T. K. Nayak, J. M. Nelson, P. K. Netrakanti, M. J. Ng, L. V. Nogach, S. B. Nurushev, G. Odyniec, A. Ogawa, H. Okada, V. Okorokov, D. Olson, M. Pachr, B. S. Page, S. K. Pal, Y. Pandit, Y. Panebratsev, T. Pawlak, T. Peitzmann, V. Perevoztchikov, C. Perkins, W. Peryt, S. C. Phatak, P. Pile, M. Planinic, M. A. Ploskon, J. Pluta, D. Plyku, N. Poljak, A. M. Poskanzer, B. V. K. S. Potukuchi, C. B. Powell, D. Prindle, C. Pruneau, N. K. Pruthi, P. R. Pujahari, J. Putschke, R. Raniwala, S. Raniwala, R. L. Ray, R. Redwine, R. Reed, J. M. Rehberg, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, A. Rose, C. Roy, L. Ruan, M. J. Russcher, R. Sahoo, S. Sakai, I. Sakrejda, T. Sakuma, S. Salur, J. Sandweiss, E. Sangaline, J. Schambach, R. P. Scharenberg, N. Schmitz, T. R. Schuster, J. Seele, J. Seger, I. Selyuzhenkov, P. Seyboth, E. Shahaliev, M. Shao, M. Sharma, S. S. Shi, E. P. Sichtermann, F. Simon, R. N. Singaraju, M. J. Skoby, N. Smirnov, P. Sorensen, J. Sowinski, H. M. Spinka, B. Srivastava, T. D. S. Stanislaus, D. Staszak, J. R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A. A. P. Suaide, M. C. Suarez, N. L. Subba, M. Sumbera, X. M. Sun, Y. Sun, Z. Sun, B. Surrow, T. J. M. Symons, A. Szanto de Toledo, J. Takahashi, A. H. Tang, Z. Tang, L. H. Tarini, T. Tarnowsky, D. Thein, J. H. Thomas, J. Tian, A. R. Timmins, S. Timoshenko, D. Tlusty, M. Tokarev, T. A. Trainor, V. N. Tram, S. Trentalange, R. E. Tribble, O. D. Tsai, J. Ulery, T. Ullrich, D. G. Underwood, G. Van Buren, G. van Nieuwenhuizen, J. A. Vanfossen, R. Varma, G. M. S. Vasconcelos, A. N. Vasiliev, F. Videbaek, Y. P. Viyogi, S. Vokal, S. A. Voloshin, M. Wada, M. Walker, F. Wang, G. Wang, H. Wang, J. S. Wang, Q. Wang, X. Wang, X. L. Wang, Y. Wang, G. Webb, J. C. Webb, G. D. Westfall, C. Whitten, H. Wieman, E. Wingfield, S. W. Wissink, R. Witt, Y. Wu, W. Xie, N. Xu, Q. H. Xu, W. Xu, Y. Xu, Z. Xu, L. Xue, Y. Yang, P. Yepes, K. Yip, I-K. Yoo, Q. Yue, M. Zawisza, H. Zbroszczyk, W. Zhan, S. Zhang, W. M. Zhang, X. P. Zhang, Y. Zhang, Z. P. Zhang, J. Zhao, C. Zhong, J. Zhou, W. Zhou, X. Zhu, Y. H. Zhu, R. Zoulkarneev, and Y. Zoulkarneeva
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Proton, 010308 nuclear & particles physics, media_common.quotation_subject, Hadron, Perturbative QCD, 01 natural sciences, 7. Clean energy, Asymmetry, Gluon, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon, media_common
Abstract: We report a measurement of the longitudinal double-spin asymmetry ALL and the differential cross section for inclusive π0 production at midrapidity in polarized proton collisions at √s=200 GeV. The cross section was measured over a transverse momentum range of 1
Published: 2009

155. Long range rapidity correlations and jet production in high energy nuclear collisions

Author: M. DePhillips, Michal Sumbera, Hank Crawford, B. E. Bonner, P. R. Pujahari, S. W. Wissink, B. Haag, Nikola Poljak, L. Kotchenda, Bedangadas Mohanty, J. Lauret, O. D. Tsai, S. Kabana, B. Srivastava, M. Wada, M. Bystersky, L. C. Bland, F. Videbæk, T. P. Burton, N. Schmitz, M. Elnimr, I. K. Yoo, M. C. Cervantes, G. Webb, D. R. Gangadharan, Marcelo Gameiro Munhoz, D. J. Prindle, Zebo Tang, D. Thein, R. Milner, A. Shabetai, Debasish Das, A. Ridiger, Jongmin Lee, M. Heinz, Lee Stuart Barnby, A. H. Tang, K. Kang, Xiang Sun, R. L. Ray, B. Grube, M. Kopytine, Jie Liu, K. Kajimoto, E. G. Judd, Jaroslav Bielcik, Raghunath Sahoo, Hanna Paulina Zbroszczyk, M. A.C. Lamont, G. Igo, Mikhail Tokarev, S. Heppelmann, J. G. Cramer, Donika Plyku, Z. Chajecki, Sevil Salur, Y. Wang, M. A. Lisa, W. Guryn, William Axel Leight, L. Liu, C. L. Jones, D. R. Beavis, P. Filip, J. Bouchet, C. Perkins, M. R. Dutta Mazumdar, I. Sakrejda, M. S. Ganti, Z. J. Sun, H. Bichsel, M. C. Suarez, V. Fine, S. R. Klein, William Jacobs, N. L. Subba, J. Engelage, O. V. Rogachevskiy, T. Peitzmann, K. Kauder, Congbo Li, D. L. Olson, T. D. S. Stanislaus, A. Geromitsos, Premomoy Ghosh, D. Staszak, H. H. Wieman, J. X. Zuo, O. G. Grebenyuk, D. D. Koetke, S. Sakai, S. M. Guertin, G. Lin, P. Pile, W. A. Love, W. Christie, A. K. Bhati, D. Keane, Sudhir Raniwala, T. S. McShane, Anik Gupta, Alexandre Alarcon Do Passo Suaide, A. A. Derevschikov, D. Tlusty, J. Fedorisin, Nikolai Smirnov, Petr Jákl, L. V. Nogach, Y. Zoulkarneeva, Xiaoping Zhang, Ermes Braidot, Y. Yang, S. LaPointe, N. Li, D. P. Mahapatra, R. S. Hollis, Andrew Rose, Chitrasen Jena, Y. Zhao, Madan M. Aggarwal, Christine Nattrass, L. K. Mangotra, R. Manweiler, Hongfang Liu, O. I. Mall, Wei Xie, S. B. Nurushev, Sergei A. Voloshin, Mirko Planinic, A. G. Knospe, A. Gordon, S. Baumgart, C-H. Lee, T. K. Nayak, Fuqiang Wang, J. E. Draper, E. Shahaliev, Jorn Henning Putschke, M. Zawisza, P. Sorensen, X. H. Shi, Y. P. Lu, A. V. Brandin, M. J. Skoby, Frank Jm Geurts, L. G. Efimov, E. Elhalhuli, J. Konzer, Yong Xu, V. Perevoztchikov, B. D. Anderson, H. Okada, J. Joseph, G. M.S. Vasconcelos, Adam Ryszard Kisiel, Matthew Walker, S. E. Vigdor, J. Baudot, Jifa Tian, E. P. Sichtermann, Y. Panebratsev, D. Grosnick, V. Kouchpil, H. Caines, N. K. Pruthi, A. Kechechyan, Andre Mischke, Ki-Seok Choi, P. G. Jones, Christian Claude Kuhn, C. A. Whitten, Feng Jin, S. Vokal, Q. Wang, Yifu Sun, Christina Markert, Q. H. Xu, G. Eppley, J. Seger, R. Corliss, M. Krus, Y. Pandit, L. Didenko, R. Cendejas, Y. N. Gorbunov, Haiyan Wang, Jana Bielcikova, A. Szanto de Toledo, B. Erazmus, S. J. Lindenbaum, B. V.K.S. Potukuchi, Yi Zhang, Xu Cai, W. L. Zhan, J. Pluta, J. H. Thomas, M. J. Russcher, J. Kapitan, T. Ullrich, R. Fatemi, Michael Joseph Betancourt, H. G. Ritter, Y. P. Viyogi, Guo-Liang Ma, A. R. Timmins, S. M. Dogra, Y. Fisyak, M. S. Daugherity, Yu-Gang Ma, A. Hirsch, Rolf K. Reed, P. Kurnadi, Frank Simon, J. Balewski, Rashmi Raniwala, K. Yip, J. S. Wang, A. Chikanian, K. Krueger, A. Ogawa, Zhenyu Zhang, W. J. Llope, M. Sharma, R. N. Singaraju, L. Huo, A. P. Meschanin, T. Pawlak, M. R. Cosentino, J. A. Vanfossen, Claude Andre Pruneau, J. Sandweiss, R. E. Tribble, Gerald W Hoffmann, I. Selyuzhenkov, A. V. Alakhverdyants, J. C. Webb, J. Kiryluk, Sergey Timoshenko, P. Kravtsov, D. Kettler, F. Benedosso, W. He, Russell Richard Betts, Bernd Surrow, G. Wang, R. Zoulkarneev, M. Cherney, K. S.F.F. Guimaraes, Wolfgang Korsch, B. Stringfellow, Thomas Michael Cormier, E. Hjort, D. G. Underwood, G. S. Averichev, Lokesh Kumar, D. A. Morozov, P. Seyboth, E. J. Garcia-Solis, J. Sowinski, Lijuan Ruan, M. Sarsour, Gary Westfall, A. M. Poskanzer, Jing Zhou, Thomas Humanic, L. H. Tarini, L. Eun, R. Derradi de Souza, B. I. Abelev, S. Bueltmann, T. G. Dedovich, Pawan Kumar Netrakanti, M. Shao, Subhasis Chattopadhyay, T. J. Hallman, T. J. M. Symons, J. Ulery, T. Sakuma, Xuan Wang, T. Ljubicic, Jianping Cheng, Thomas A. Trainor, G. Odyniec, S. C. Phatak, L. C. De Silva, X. L. Wang, H. M. Spinka, C. Zhong, I. Bnzarov, S. S. Shi, Elena Bruna, H. Z. Huang, R. P. Scharenberg, C. A. Gagliardi, G. Van Buren, M. J. M. Codrington, X. Dong, H. S. Matis, M. Pachr, Neeraj Gupta, D. Cebra, V. Ghazikhanian, S. Trentalange, O. Barannikova, R. Bellwied, M. Estienne, V. N. Tram, I. Koralt, M. J. Ng, Marek Bombara, L. Gaillard, R. Lednicky, P. Djawotho, Zhongbin Xu, V. I. Kravtsov, G. Van Nieuwenhuizen, D. Arkhipkin, A. Hamed, E. Finch, A. Iordanova, T. W. Ludlam, Anju Bhasin, R. P. Redwine, J. M. Nelson, Yuanfang Wu, Yan Li, Jing-Han Chen, Basanta Kumar Nandi, W. Peryt, R. S. Longacre, T. Tarnowsky, B. Biritz, David Jonathan Hofman, H. Masui, V. A. Okorokov, P. Fachini, C. Roy, J. M. Landgraf, Peter Martin Jacobs, J. Takahashi, P. Chaloupka, S. Margetis, H. F. Chen, W. M. Zhang, Andrey Vasiliev, Nu Xu, A. M. Hoffman, F. Liu, J. L. Drachenberg, S. Zhang, M. Strikhanov, R. D. Majka, J. L. Romero, A. Feng, J. Y. Chen, R. F. Clarke, Jay Roberts, X. Zhu, Mateusz Andrzej Ploskon, R. Witt, S. Mioduszewski, V. Yu Khodyrev, Subrata Pal, Donald M. McDonald, Boris Hippolyte, J. C. Dunlop, Qian Yue, R. Varma, Yu A. Matulenko, B. S. Page, D. P. Kikola, Zubayer Ahammed, M. J. LeVine, M. Calderon De La Barca Sanchez, A. Lebedev, O. Catu, J. Schambach, A. Kocoloski, S. Dash, N. G. Minaev, J. W. Harris, and P. Yepes
Subjects: Nuclear and High Energy Physics, di-hadron, Hadron, FOS: Physical sciences, 01 natural sciences, Spectral line, Nuclear physics, correlations, 0103 physical sciences, Rapidity, Nuclear Experiment (nucl-ex), Nuclear Experiment, 010306 general physics, Physics, Jet (fluid), Range (particle radiation), 010308 nuclear & particles physics, Collaboration, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, Deuterium, Perspective, Quark–gluon plasma, Quark-Gluon Plasma, High Energy Physics::Experiment, Atomic physics, Relativistic Heavy Ion Collider
Abstract: The STAR Collaboration at RHIC presents a systematic study of high transverse momentum charged di-hadron correlations at small azimuthal pair separation \dphino, in d+Au and central Au+Au collisions at $\rts = 200$ GeV. Significant correlated yield for pairs with large longitudinal separation \deta is observed in central Au+Au, in contrast to d+Au collisions. The associated yield distribution in \detano$\times$\dphi can be decomposed into a narrow jet-like peak at small angular separation which has a similar shape to that found in d+Au collisions, and a component which is narrow in \dphi and \textcolor{black}{depends only weakly on} $\deta$, the "ridge". Using two systematically independent analyses, \textcolor{black}{finite ridge yield} is found to persist for trigger $\pt > 6$ \GeVc, indicating that it is correlated with jet production. The transverse momentum spectrum of hadrons comprising the ridge is found to be similar to that of bulk particle production in the measured range ($2 < \pt < 4 \GeVc$)., Submitted to Phys. Rev. C, 9 pages, 6 figures
Published: 2009

156. Longitudinal spin transfer toΛandΛ¯hyperons in polarized proton-proton collisions ats=200 GeV

Author: B. Haag, L. K. Mangotra, R. Manweiler, Hongfang Liu, G. Eppley, Zebo Tang, Z. Chajecki, K. Yip, A. M. Poskanzer, J. C. Dunlop, J. S. Wang, H. Z. Huang, S. Vokal, C. Perkins, T. J. Humanic, J. Pluta, A. Kechechyan, Andre Mischke, Zubayer Ahammed, R. R. Debbe, D. Tlusty, Mirko Planinic, M. J. LeVine, R. S. Longacre, L. C. Bland, V. Ghazikhanian, J. Konzer, Adam Ryszard Kisiel, T. Peitzmann, H. J. Crawford, Qian Yue, M. Krus, R. Cendejas, Bedangadas Mohanty, Debasish Das, M. C. Suarez, Li Xue, J. W. Harris, J. Kiryluk, Y. N. Gorbunov, J. Ulery, H. G. Ritter, O. Barannikova, R. Bellwied, P. Kurnadi, J. L. Romero, Raghunath Sahoo, M. A.C. Lamont, Y. H. Zhu, R. Varma, James Prewitt Hays-Wehle, D. Thein, Zhenyu Zhang, Yu A. Matulenko, B. S. Page, F. Liu, D. A. Morozov, C-Q. Li, G. Igo, R. G. Fersch, R. E. Tribble, D. P. Kikola, E. Finch, Jorn Henning Putschke, P. Yepes, Z. Xu, G. Lin, B. Stringfellow, F. Benedosso, A. V. Brandin, A. H. Tang, L. Kotchenda, T. P. Burton, J. H. Chen, Gerald W Hoffmann, M. Kopytine, J. Bouchet, R. P. Scharenberg, Christina Markert, H. S. Matis, J. L. Drachenberg, M. Tokarev, Xing-Jiang Zhu, K. Kang, T. S. McShane, R. Fatemi, Michael Joseph Betancourt, Anik Gupta, H. Okada, G. Wang, R. D. Majka, Thorsten Sven Kollegger, M. Heinz, K. Krueger, W. W. Jacobs, N. Gupta, Xuan Zhang, Andrew Rose, Y. Zhao, T. G. Dedovich, Jay Roberts, E. Hjort, Y. F. Wu, E. P. Sichtermann, Lee Stuart Barnby, T. Sakuma, S. Margetis, S. Baumgart, J. A. Vanfossen, R. F. Clarke, J. Schambach, Frank Jm Geurts, S. C. Phatak, E. Elhalhuli, H. Masui, S. Heppelmann, P. Seyboth, Jifa Tian, S. Bueltmann, W. Christie, T. D. S. Stanislaus, J. Lauret, Q. H. Xu, Matthew Walker, R. Lednicky, Xiangming Sun, Guo-Liang Ma, V. Fine, E. J. Garcia-Solis, Jie Liu, W. M. Zhang, D. D. Koetke, J. E. Draper, Y. J. Sun, K. Kauder, Andrey Vasiliev, Jake Y. Chen, H. H. Wieman, Jaroslav Bielcik, P. Djawotho, I. K. Yoo, G. Van Buren, R. N. Singaraju, L. Huo, A. P. Meschanin, M. Cherney, S. Kabana, Lokesh Kumar, Hanna Paulina Zbroszczyk, I. Sakrejda, K. Kajimoto, P. Chung, Y. P. Viyogi, S. S. Shi, J. Balewski, Rashmi Raniwala, P. R. Pujahari, B. D. Anderson, Sergey Timoshenko, Wei Xie, J. Joseph, D. R. Gangadharan, E. G. Judd, Janet Elizabeth Seger, A. M. Hoffman, D. R. Beavis, R. Derradi de Souza, B. I. Abelev, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, Y. Yang, G. M.S. Vasconcelos, T. W. Ludlam, Yinina Ma, Anju Bhasin, M. R. Dutta Mazumdar, J. G. Cramer, S. LaPointe, N. Li, Mateusz Andrzej Ploskon, R. Witt, N. K. Pruthi, W. Xu, Wolfgang Korsch, A. S. Hirsch, O. V. Rogachevskiy, J. M. Nelson, Y. Pandit, M. DePhillips, R. P. Redwine, S. Mioduszewski, Claude Andre Pruneau, S. Q. Zhang, C. L. Jones, A. Gordon, D. P. Mahapatra, N. Schmitz, R. S. Hollis, I. Koralt, A. Lebedev, V. Yu Khodyrev, L. V. Nogach, Donald M. McDonald, J. Engelage, M. J. Ng, V. I. Kravtsov, T. R. Schuster, Sergey Voloshin, Christine Nattrass, J. C. Webb, E. Shahaliev, Yan Li, P. Kravtsov, W. Peryt, Michal Sumbera, R. Reed, B. K. Srivastava, A. Chikanian, M. J. Skoby, G. Van Nieuwenhuizen, A. Bridgeman, W. A. Love, O. Catu, Xuan Wang, Ross Milner, S. W. Wissink, A. Ogawa, H. F. Chen, A. Geromitsos, M. K. Mitrovski, Thomas A. Trainor, T. Ullrich, A. Kocoloski, Nikola Poljak, S. Dash, Premomoy Ghosh, J. M. Landgraf, M. Wada, W. Zhou, Haiyan Wang, W. J. Llope, M. J. M. Codrington, R. Zoulkarneev, M. Strikhanov, V. N. Tram, X. Z. Cai, Ki-Seok Choi, I. Selyuzhenkov, Vitaly Okorokov, J. Sandweiss, David Jonathan Hofman, M. Sharma, Bernd Surrow, J. Sowinski, Peter Martin Jacobs, M. Calderón De Labarcasánchez, J. Takahashi, S. B. Nurushev, O. I. Mall, L. Eun, L-X. Han, Pawan Kumar Netrakanti, J. Seele, C. A. Gagliardi, J. H. Thomas, B. V.K.S. Potukuchi, F. Videbæk, M. Pachr, Y. Fisyak, D. Arkhipkin, G. Webb, A. Hamed, Madan M. Aggarwal, Fuqiang Wang, J. M. Rehberg, X. L. Wang, D. Kettler, Yong Xu, N. G. Minaev, G. S. Averichev, Sukalyan Chattopadhyay, A. Iordanova, C. Zhong, M. S. Ganti, W. L. Zhan, Frank Simon, L. H. Tarini, P. Pile, X. Dong, Chitrasen Jena, N. Xu, P. Filip, Y. P. Lu, I. Bnzarov, V. Perevoztchikov, S. K. Pal, Justin Stevens, Z. J. Sun, S. Sakai, G. D. Westfall, Basanta Kumar Nandi, Petr Jákl, T. Tarnowsky, B. Biritz, Jongmin Lee, R. L. Ray, X. Li, Elena Bruna, C. Roy, D. Staszak, T. Ljubicic, M. Zawisza, H. M. Spinka, C. A. Whitten, Feng Jin, A. Szanto de Toledo, J. Kapitan, L. C. DeSilva, R. Corliss, H. Caines, Sudhir Raniwala, P. Chaloupka, A. R. Timmins, S. M. Dogra, S. J. Lindenbaum, T. Pawlak, A. V. Alakhverdyants, Russell Richard Betts, D. G. Underwood, Lijuan Ruan, P. Fachini, M. Shao, William Axel Leight, S. R. Klein, N. L. Subba, D. L. Olson, T. J. Hallman, J. Cheng, T. J. M. Symons, A. A. Derevschikov, Jana Bielcikova, B. Grube, P. Sorensen, Peter Graham Jones, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, Zhibing Li, W. Guryn, L. Didenko, O. G. Grebenyuk, J. Fedorisin, A. G. Knospe, Q. Wang, M. J. Russcher, Jing Zhou, B. Erazmus, D. Cebra, S. Trentalange, M. Estienne, Marcelo Gameiro Munhoz, D. J. Prindle, Donika Plyku, M. A. Lisa, E. Braidot, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, L. G. Efimov, C-H. Lee, T. K. Nayak, Y. Panebratsev, D. Grosnick, V. Kouchpil, Yi Zhang, B. E. Bonner, O. D. Tsai, M. Elnimr, M. C. Cervantes, Sevil Salur, and Y. Wang
Subjects: Physics, Nuclear and High Energy Physics, Proton, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Lambda, Lambda baryon, 7. Clean energy, 01 natural sciences, Nuclear physics, Baryon, Pseudorapidity, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, STAR detector
Abstract: The longitudinal spin transfer, D(LL), from high energy polarized protons to Lambda and Lambda hyperons has been measured for the first time in proton-proton collisions at s=200 GeV with the STAR detector at the Relativistic Heavy Ion Collider. The measurements cover pseudorapidity, eta, in the range |eta| >=0.5 and >=3.7 GeV/c. The dependence on eta and p(T) is presented.
Published: 2009

157. J/ψproduction at high transverse momenta inp+pandCu+Cucollisions atsNN=200GeV

Author: V. N. Tram, P. Kurnadi, C. A. Whitten, T. J. Humanic, Feng Jin, L. Ruan, D. Arkhipkin, A. Hamed, M. R. Cosentino, J. G. Cramer, R. Corliss, A. Rose, F. Benedosso, R. Fatemi, Michael Joseph Betancourt, S. J. Lindenbaum, A. Iordanova, J. A. Vanfossen, J. W. Harris, O. G. Grebenyuk, T. G. Dedovich, P. Yepes, A. H. Tang, Vitaly Okorokov, M. Cherney, Thomas Michael Cormier, Lokesh Kumar, R.J.M. Snellings, L. C. Bland, Bernd Surrow, M. Calderon De La Barca Sanchez, O. Catu, A. Kocoloski, M. Heinz, Pawan Kumar Netrakanti, C. L. Jones, Edmundo Javier Garcia-Solis, Ascelin Gordon, Y. Fisyak, K. Kajimoto, V. Ghazikhanian, S. C. Phatak, Anju Bhasin, C. A. Gagliardi, M. Pachr, L. Kotchenda, T. S. McShane, Marek Bombara, Jana Bielcikova, Prabhat Ranjan Pujahari, J. L. Romero, D. Thein, R. P. Redwine, I. Sakrejda, G. Lin, Q. H. Xu, M. Kopytine, J. X. Zuo, M. Tokarev, R. N. Singaraju, M. J. Skoby, Frank Jm Geurts, L. Huo, A. P. Meschanin, J. M. Joseph, A. Shabetai, G. Wang, S. Baumgart, E. Finch, Y. Yang, M. Zawisza, H. M. Spinka, K. Kang, E. Elhalhuli, S. LaPointe, N. Li, Jifa Tian, X. Z. Cai, Y. Li, S. M. Guertin, L. V. Nogach, M. J. Ng, I. K. Yoo, X. L. Wang, T. D. S. Stanislaus, X. M. Sun, Matthew Walker, A. G. Knospe, V. I. Kravtsov, H. H. Wieman, A. Lebedev, D. P. Mahapatra, Z. J. Sun, R. S. Hollis, Manish Sharma, J. C. Dunlop, V. Fine, K. Yip, J. S. Wang, J. Ulery, B. Haag, Zubayer Ahammed, E. G. Judd, Jake Y. Chen, Y. J. Sun, B. D. Anderson, M. J. LeVine, R. S. Longacre, H. G. Ritter, Zebo Tang, M. Botje, Z. Chajecki, S. Kabana, N. Xu, S. Bueltmann, Y. P. Viyogi, Lee Stuart Barnby, Jaroslav Bielcik, Raghunath Sahoo, N. K. Pruthi, B. V. K. S. Potukuchi, C. Perkins, T. Peitzmann, M. R. Dutta Mazumdar, O. V. Rogachevskiy, L. K. Mangotra, R. Manweiler, G. Igo, A. V. Brandin, H. Okada, Wolfgang Korsch, P. Filip, Debasish Das, P. Pile, G. D. Westfall, J. Bouchet, T. P. Burton, C. Roy, Ross Milner, A. Gupta, P. Sorensen, Elena Bruna, S. E. Vigdor, Christian Claude Kuhn, G. Eppley, W. A. Love, D. D. Koetke, Sergey Voloshin, A. Kechechyan, Andre Mischke, J. Putschke, Madan M. Aggarwal, Fuqiang Wang, M. Krus, R. Cendejas, Petr Jákl, A. Feng, A. Ogawa, Anthony Robert Timmins, Adam Ryszard Kisiel, L. Gaillard, H. F. Chen, Thomas A. Trainor, W. R. Edwards, Y. Wang, M. Shao, G. Van Buren, William Axel Leight, F. Videbæk, E. Braidot, Y. Zhao, Jay Roberts, H. J. Crawford, G. Webb, J. Pluta, W. L. Zhan, Marcelo Gameiro Munhoz, D. J. Prindle, Frank Simon, S. S. Shi, Sukalyan Chattopadhyay, Mirko Planinic, J. Baudot, Donika Plyku, K. Krueger, Wei Xie, M. S. Ganti, M. A. Lisa, Y. N. Gorbunov, T. W. Ludlam, T. J. Hallman, L. H. Tarini, P. Chaloupka, J. M. Nelson, G. M.S. Vasconcelos, Rene Bellwied, M. Sarsour, P. Seyboth, C-Q. Li, P. Djawotho, Chitrasen Jena, V. Emelianov, A. K. Bhati, M. DePhillips, R. P. Scharenberg, Christina Markert, H. S. Matis, Y. P. Lu, Y. G. Ma, W. Peryt, Y. Pandit, R. E. Tribble, D. Keane, R. Derradi de Souza, B. I. Abelev, S. Trentalange, Michal Sumbera, A. A. P. Suaide, V. Perevoztchikov, Sunil Dogra, N. Schmitz, X. H. Shi, E. Shahaliev, W. W. Jacobs, J. Lauret, W. He, Peter Graham Jones, Gerald W Hoffmann, Tai Sakuma, D. Tlusty, S. W. Wissink, J. H. Thomas, Y. Zhang, R. Lednicky, A. M. Vander Molen, Nikola Poljak, L. Didenko, D. R. Gangadharan, Qian Yue, E. Hjort, Y. F. Wu, J. E. Draper, L. G. Efimov, R. Varma, Basanta Kumar Nandi, S. Zhang, B. Erazmus, A. Stadnik, D. Kettler, B. Biritz, Yu A. Matulenko, S. Timoshenko, Bedangadas Mohanty, Y. F. Xu, B. S. Page, D. P. Kikola, Neeraj Gupta, D. Cebra, D. J. Hofman, B. Stringfellow, J. Engelage, M. Estienne, A. M. Poskanzer, G. S. Averichev, P. Fachini, A. Geromitsos, K. S.F.F. Guimaraes, L. Liu, R. Witt, M. Wada, Premomoy Ghosh, J. Takahashi, J. M. Landgraf, W. Christie, M. Bystersky, M. C. Suarez, C-H. Lee, T. K. Nayak, M. Strikhanov, S. Mioduszewski, V. Yu Khodyrev, M. A. C. Lamont, S. B. Nurushev, S. R. Klein, T. Tarnowsky, N. L. Subba, Donald M. McDonald, B. K. Srivastava, I. M. Vasilevski, Ki-Seok Choi, W. M. Zhang, Andrey Vasiliev, H. Bichsel, Y. Zoulkarneeva, C. Zhong, O. Barannikova, D. L. Olson, G. Odyniec, J. Sandweiss, Boris Hippolyte, Q. Wang, M. J. Russcher, N. G. Minaev, A. A. Derevschikov, A. L. Trattner, Janet Elizabeth Seger, J. C. Webb, A. M. Hoffman, Jing Zhou, Guo-Liang Ma, F. Liu, Y. Panebratsev, Z. P. Zhang, A. S. Hirsch, P. M. Jacobs, P. Kravtsov, R. D. Majka, D. Grosnick, J. L. Drachenberg, V. Kouchpil, M. S. Daugherity, J. Sowinski, R. F. Clarke, J. Schambach, Z. Z. Xu, Nikita Smirnov, B. E. Bonner, O. D. Tsai, M. Elnimr, M. C. Cervantes, Sevil Salur, Xuan Zhang, Jie Liu, B. Grube, Hanna Paulina Zbroszczyk, W. Guryn, D. R. Beavis, J. Fedorisin, R. Reed, Russell Richard Betts, O. I. Mall, D. G. Underwood, J. Cheng, T. J. M. Symons, L. C. De Silva, W. J. Llope, A. Szanto de Toledo, J. Kapitan, T. Pawlak, H. Z. Huang, S. Vokal, J. Kiryluk, J. H. Chen, Rajarshi Ray, D. A. Morozov, A. Ridiger, Christine Nattrass, S. Heppelmann, Ilya Selyuzhenkov, M. J. M. Codrington, S. Margetis, M. van Leeuwen, X. Dong, S. K. Pal, Jongmin Lee, D. Staszak, T. Ljubicic, H. Caines, Sudhir Raniwala, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, Sadhana Dash, T. Ullrich, R. Zoulkarneev, L. Eun, and A. Chikanian
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Star (game theory), Hadron, 01 natural sciences, Transverse plane, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: The STAR Collaboration at the Relativistic Heavy Ion Collider presents measurements of $J/\ensuremath{\psi}\ensuremath{\rightarrow}{e}^{+}{e}^{\ensuremath{-}}$ at midrapidity and high transverse momentum (${p}_{T}g5 \mathrm{GeV}/c$) in $p+p$ and central $\mathrm{Cu}+\mathrm{Cu}$ collisions at $\sqrt{{s}_{{}_{\mathit{NN}}}}=200$ GeV. The inclusive $J/\ensuremath{\psi}$ production cross section for $\mathrm{Cu}+\mathrm{Cu}$ collisions is found to be consistent at high ${p}_{T}$ with the binary collision-scaled cross section for $p+p$ collisions. At a confidence level of $97%$, this is in contrast to a suppression of $J/\ensuremath{\psi}$ production observed at lower ${p}_{T}$. Azimuthal correlations of $J/\ensuremath{\psi}$ with charged hadrons in $p+p$ collisions provide an estimate of the contribution of $B$-hadron decays to $J/\ensuremath{\psi}$ production of $13%\ifmmode\pm\else\textpm\fi{}5%$.
Published: 2009

158. Neutral pion production inAu+Aucollisions atsNN=200GeV

Author: O. I. Mall, A. Ridiger, K. Kajimoto, S. Heppelmann, B. V.S. Potukuchi, Yu-Gang Ma, R. Fatemi, Michael Joseph Betancourt, J. L. Drachenberg, P. Fachini, I. Selyuzhenkov, K. S.F.F. Guimaraes, K. Krueger, D. D. Koetke, J. E. Draper, J. A. Vanfossen, N. Gupta, A. Feng, K. Kang, Sergey Voloshin, Christine Nattrass, Jay Roberts, Xuan Zhang, Z. Xu, G. Lin, Jie Liu, Hanna Paulina Zbroszczyk, W. He, M. Cherney, D. R. Beavis, M. Zawisza, H. M. Spinka, Bernd Surrow, W. J. Llope, Anik Gupta, T. J. Humanic, Thomas Michael Cormier, Lokesh Kumar, H. Bichsel, M. Sarsour, G. Odyniec, Y. Zoulkarneeva, William Axel Leight, J. H. Thomas, Qian Yue, Frank Jm Geurts, E. Elhalhuli, S. R. Klein, N. L. Subba, E. Hjort, Pawan Kumar Netrakanti, R. Varma, Yu A. Matulenko, B. S. Page, P. Kurnadi, Jifa Tian, D. L. Olson, Zhenyu Zhang, D. P. Kikola, B. Grube, Q. Wang, M. J. Russcher, H. Z. Huang, S. Vokal, M. R. Cosentino, B. Stringfellow, T. S. McShane, D. Kettler, A. A. Derevschikov, J. C. Dunlop, Haiyan Wang, F. Benedosso, C. A. Gagliardi, M. Pachr, G. S. Averichev, S. Baumgart, D. Thein, J. Engelage, J. Kiryluk, Matthew Walker, X. Z. Cai, J. Baudot, M. Wada, S. Bueltmann, Zubayer Ahammed, Jana Bielcikova, B. Haag, T. G. Dedovich, W. Guryn, D. A. Morozov, M. J. LeVine, L. Kotchenda, M. Heinz, A. Geromitsos, Y. J. Sun, Lee Stuart Barnby, T. Sakuma, S. C. Phatak, M. Kopytine, V. Fine, Jaroslav Bielcik, G. Van Buren, L. H. Tarini, S. Kabana, Premomoy Ghosh, J. M. Landgraf, Y. P. Viyogi, Zebo Tang, P. Sorensen, X. H. Shi, Jing Zhou, K. Yip, P. R. Pujahari, J. S. Wang, Peter Graham Jones, O. G. Grebenyuk, V. Ghazikhanian, Bedangadas Mohanty, J. Konzer, Adam Ryszard Kisiel, M. Tokarev, T. P. Burton, M. R. Dutta Mazumdar, J. G. Cramer, T. W. Ludlam, Xing-Jiang Zhu, B. Erazmus, M. Calderon De La Barca Sanchez, Z. Chajecki, Xiangming Sun, I. Bnzarov, M. Strikhanov, Marek Bombara, J. Fedorisin, O. V. Rogachevskiy, J. M. Nelson, H. J. Crawford, Elena Bruna, C. L. Jones, Yan Li, S. M. Guertin, J. L. Romero, L. Didenko, W. A. Love, S. S. Shi, A. G. Knospe, R. Reed, C. Perkins, Jing-Han Chen, W. Peryt, Ki-Seok Choi, Alexandre Alarcon Do Passo Suaide, D. Cebra, S. Trentalange, M. Estienne, J. Sandweiss, D. P. Mahapatra, David Jonathan Hofman, I. Koralt, Madan M. Aggarwal, T. Peitzmann, H. Masui, Fuqiang Wang, R. S. Hollis, E. Finch, L. V. Nogach, M. J. Ng, Marcelo Gameiro Munhoz, T. D. S. Stanislaus, V. I. Kravtsov, G. Van Nieuwenhuizen, A. Szanto de Toledo, Yong Xu, Mateusz Andrzej Ploskon, R. Witt, D. J. Prindle, S. Mioduszewski, J. Kapitan, A. R. Timmins, S. M. Dogra, V. Yu Khodyrev, H. H. Wieman, Donika Plyku, M. Bystersky, I. Sakrejda, M. A. Lisa, Guo-Liang Ma, Peter Martin Jacobs, T. Pawlak, E. Braidot, W. L. Zhan, J. X. Zuo, Frank Simon, J. Takahashi, B. D. Anderson, A. V. Alakhverdyants, L. K. Mangotra, Donald M. McDonald, R. Manweiler, Hongfang Liu, B. K. Srivastava, M. DePhillips, Russell Richard Betts, S. B. Nurushev, D. G. Underwood, A. M. Poskanzer, Lijuan Ruan, Michal Sumbera, Boris Hippolyte, Y. Yang, S. LaPointe, N. Li, N. K. Pruthi, A. Kechechyan, Andre Mischke, M. Shao, T. J. Hallman, J. Cheng, Wei Xie, T. J. M. Symons, S. W. Wissink, A. Gordon, J. Joseph, L. C. De Silva, Nikola Poljak, M. Krus, R. Cendejas, Jorn Henning Putschke, A. V. Brandin, A. S. Hirsch, J. C. Webb, P. Kravtsov, G. M.S. Vasconcelos, Y. Pandit, W. Christie, G. Eppley, H. Okada, N. Schmitz, I. K. Yoo, E. Shahaliev, S. E. Vigdor, Christian Claude Kuhn, J. Pluta, D. R. Gangadharan, E. G. Judd, J. Sowinski, W. M. Zhang, F. Videbæk, G. Webb, Sukalyan Chattopadhyay, Andrey Vasiliev, L. C. Bland, M. S. Ganti, R. E. Tribble, Gerald W Hoffmann, Chitrasen Jena, R. S. Longacre, Yuanfang Wu, Y. P. Lu, V. Perevoztchikov, L. Liu, J. W. Harris, Debasish Das, Raghunath Sahoo, M. C. Suarez, Chang-Hwan Lee, M. A.C. Lamont, Janet Elizabeth Seger, Basanta Kumar Nandi, A. M. Hoffman, G. Igo, T. Tarnowsky, Anju Bhasin, P. Yepes, B. Biritz, R. P. Redwine, A. H. Tang, J. Bouchet, V. A. Okorokov, S. Q. Zhang, K. Kauder, A. Lebedev, C. Roy, A. Shabetai, Andrew Rose, D. Tlusty, Y. Zhao, Mirko Planinic, Q. H. Xu, J. Ulery, Z. J. Sun, Ross Milner, O. Catu, Y. N. Gorbunov, H. G. Ritter, R. N. Singaraju, A. Kocoloski, L. Huo, A. P. Meschanin, P. Chaloupka, C-Q. Li, S. Dash, F. Liu, R. P. Scharenberg, Christina Markert, Y. Fisyak, H. S. Matis, O. Barannikova, R. Bellwied, W. W. Jacobs, J. Lauret, L. Gaillard, G. Wang, R. Lednicky, P. Djawotho, R. D. Majka, P. Seyboth, E. J. Garcia-Solis, J. Y. Chen, S. Margetis, R. F. Clarke, J. Schambach, A. Chikanian, M. J. Skoby, V. N. Tram, Sergey Timoshenko, R. Derradi de Souza, B. I. Abelev, Wolfgang Korsch, M. J. M. Codrington, D. Arkhipkin, A. Hamed, A. Iordanova, M. S. Daugherity, Xuan Wang, A. Ogawa, H. F. Chen, Thomas A. Trainor, N. Xu, P. Filip, S. Sakai, P. Pile, G. D. Westfall, Petr Jákl, C. A. Whitten, Feng Jin, X. L. Wang, C. Zhong, X. Dong, R. Corliss, S. K. Pal, B. E. Bonner, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, O. D. Tsai, Claude Andre Pruneau, S. J. Lindenbaum, T. Ullrich, R. Zoulkarneev, L. Eun, Jongmin Lee, R. L. Ray, D. Staszak, M. Elnimr, M. C. Cervantes, T. Ljubicic, H. Caines, Sudhir Raniwala, M. Sharma, N. G. Minaev, Sevil Salur, Y. Wang, A. K. Bhati, D. Keane, Nikolai Smirnov, L. G. Efimov, T. K. Nayak, Y. Panebratsev, D. Grosnick, V. Kouchpil, and Yi Zhang
Subjects: Physics, Quark, Nuclear and High Energy Physics, Particle physics, Time projection chamber, Meson, 010308 nuclear & particles physics, Nuclear Theory, Parton, Electron, 01 natural sciences, Spectral line, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: The results of midrapidity (0 < y < 0.8) neutral pion spectra over an extended transverse momentum range (1 < p(T) < 12 GeV/c) in root s(NN) = 200 GeV Au + Au collisions, measured by the STAR experiment, are presented. The neutral pions are reconstructed from photons measured either by the STAR Barrel Electro-Magnetic Calorimeter or by the Time Projection Chamber via tracking of conversion electron-positron pairs. Our measurements are compared to previously published pi(+/-) and pi(0) results. The nuclear modification factors R(CP) and R(AA) of pi(0) are also presented as a function of p(T). In the most central Au + Au collisions, the binary collision scaled pi(0) yield at high p(T) is suppressed by a factor of about 5 compared to the expectation from the yield of p + p collisions. Such a large suppression is in agreement with previous observations for light quark mesons and is consistent with the scenario that partons suffer considerable energy loss in the dense medium formed in central nucleus-nucleus collisions at the Relativistic Heavy Ion Collider.
Published: 2009

159. Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality inAu+AuCollisions atsNN=200 GeV

Author: B. I. Abelev, M. M. Aggarwal, Z. Ahammed, B. D. Anderson, D. Arkhipkin, G. S. Averichev, J. Balewski, O. Barannikova, L. S. Barnby, J. Baudot, S. Baumgart, D. R. Beavis, R. Bellwied, F. Benedosso, M. J. Betancourt, R. R. Betts, A. Bhasin, A. K. Bhati, H. Bichsel, J. Bielcik, J. Bielcikova, B. Biritz, L. C. Bland, M. Bombara, B. E. Bonner, M. Botje, J. Bouchet, E. Braidot, A. V. Brandin, E. Bruna, S. Bueltmann, T. P. Burton, M. Bystersky, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, O. Catu, D. Cebra, R. Cendejas, M. C. Cervantes, Z. Chajecki, P. Chaloupka, S. Chattopadhyay, H. F. Chen, J. H. Chen, J. Y. Chen, J. Cheng, M. Cherney, A. Chikanian, K. E. Choi, W. Christie, R. F. Clarke, M. J. M. Codrington, R. Corliss, T. M. Cormier, M. R. Cosentino, J. G. Cramer, H. J. Crawford, D. Das, S. Dash, M. Daugherity, L. C. De Silva, T. G. Dedovich, M. DePhillips, A. A. Derevschikov, R. Derradi de Souza, L. Didenko, P. Djawotho, S. M. Dogra, X. Dong, J. L. Drachenberg, J. E. Draper, F. Du, J. C. Dunlop, M. R. Dutta Mazumdar, W. R. Edwards, L. G. Efimov, E. Elhalhuli, M. Elnimr, V. Emelianov, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, L. Eun, P. Fachini, R. Fatemi, J. Fedorisin, A. Feng, P. Filip, E. Finch, V. Fine, Y. Fisyak, C. A. Gagliardi, L. Gaillard, D. R. Gangadharan, M. S. Ganti, E. J. Garcia-Solis, A. Geromitsos, F. Geurts, V. Ghazikhanian, P. Ghosh, Y. N. Gorbunov, A. Gordon, O. Grebenyuk, D. Grosnick, B. Grube, S. M. Guertin, K. S. F. F. Guimaraes, A. Gupta, N. Gupta, W. Guryn, B. Haag, T. J. Hallman, A. Hamed, J. W. Harris, W. He, M. Heinz, S. Heppelmann, B. Hippolyte, A. Hirsch, E. Hjort, A. M. Hoffman, G. W. Hoffmann, D. J. Hofman, R. S. Hollis, H. Z. Huang, T. J. Humanic, L. Huo, G. Igo, A. Iordanova, P. Jacobs, W. W. Jacobs, P. Jakl, C. Jena, F. Jin, C. L. Jones, P. G. Jones, J. Joseph, E. G. Judd, S. Kabana, K. Kajimoto, K. Kang, J. Kapitan, D. Keane, A. Kechechyan, D. Kettler, V. Yu. Khodyrev, D. P. Kikola, J. Kiryluk, A. Kisiel, A. G. Knospe, A. Kocoloski, D. D. Koetke, M. Kopytine, W. Korsch, L. Kotchenda, V. Kouchpil, P. Kravtsov, V. I. Kravtsov, K. Krueger, M. Krus, C. Kuhn, L. Kumar, P. Kurnadi, M. A. C. Lamont, J. M. Landgraf, S. LaPointe, J. Lauret, A. Lebedev, R. Lednicky, C-H. Lee, J. H. Lee, W. Leight, M. J. LeVine, N. Li, C. Li, Y. Li, G. Lin, S. J. Lindenbaum, M. A. Lisa, F. Liu, J. Liu, L. Liu, T. Ljubicic, W. J. Llope, R. S. Longacre, W. A. Love, Y. Lu, T. Ludlam, G. L. Ma, Y. G. Ma, D. P. Mahapatra, R. Majka, O. I. Mall, L. K. Mangotra, R. Manweiler, S. Margetis, C. Markert, H. S. Matis, Yu. A. Matulenko, T. S. McShane, A. Meschanin, R. Milner, 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, P. K. Netrakanti, M. J. Ng, L. V. Nogach, S. B. Nurushev, G. Odyniec, A. Ogawa, H. Okada, V. Okorokov, D. Olson, M. Pachr, B. S. Page, S. K. Pal, Y. Pandit, Y. Panebratsev, T. Pawlak, T. Peitzmann, V. Perevoztchikov, C. Perkins, W. Peryt, S. C. Phatak, M. Planinic, J. Pluta, N. Poljak, A. M. Poskanzer, B. V. K. S. Potukuchi, D. Prindle, C. Pruneau, N. K. Pruthi, P. R. Pujahari, J. Putschke, R. Raniwala, S. Raniwala, R. Redwine, R. Reed, A. Ridiger, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, A. Rose, C. Roy, L. Ruan, M. J. Russcher, R. Sahoo, I. Sakrejda, T. Sakuma, S. Salur, J. Sandweiss, M. Sarsour, J. Schambach, R. P. Scharenberg, N. Schmitz, J. Seger, I. Selyuzhenkov, P. Seyboth, A. Shabetai, E. Shahaliev, M. Shao, M. Sharma, S. S. Shi, X-H. Shi, E. P. Sichtermann, F. Simon, R. N. Singaraju, M. J. Skoby, N. Smirnov, R. Snellings, P. Sorensen, J. Sowinski, H. M. Spinka, B. Srivastava, A. Stadnik, T. D. S. Stanislaus, D. Staszak, M. Strikhanov, B. Stringfellow, A. A. P. Suaide, M. C. Suarez, N. L. Subba, M. Sumbera, X. M. Sun, Y. Sun, Z. Sun, B. Surrow, T. J. M. Symons, A. Szanto de Toledo, J. Takahashi, A. H. Tang, Z. Tang, T. Tarnowsky, D. Thein, J. H. Thomas, J. Tian, A. R. Timmins, S. Timoshenko, D. Tlusty, M. Tokarev, V. N. Tram, A. L. Trattner, S. Trentalange, R. E. Tribble, O. D. Tsai, J. Ulery, T. Ullrich, D. G. Underwood, G. Van Buren, M. van Leeuwen, A. M. Vander Molen, J. A. Vanfossen, R. Varma, G. M. S. Vasconcelos, I. M. Vasilevski, A. N. Vasiliev, F. Videbaek, S. E. Vigdor, Y. P. Viyogi, S. Vokal, S. A. Voloshin, M. Wada, M. Walker, F. Wang, G. Wang, J. S. Wang, Q. Wang, X. Wang, X. L. Wang, Y. Wang, G. Webb, J. C. Webb, G. D. Westfall, C. Whitten, H. Wieman, S. W. Wissink, R. Witt, Y. Wu, W. Xie, N. Xu, Q. H. Xu, Y. Xu, Z. Xu, Y. Yang, P. Yepes, I-K. Yoo, Q. Yue, M. Zawisza, H. Zbroszczyk, W. Zhan, S. Zhang, W. M. Zhang, X. P. Zhang, Y. Zhang, Z. P. Zhang, Y. Zhao, C. Zhong, J. Zhou, R. Zoulkarneev, Y. Zoulkarneeva, and J. X. Zuo
Subjects: Physics, Range (particle radiation), 010308 nuclear & particles physics, General Physics and Astronomy, Multiplicity (mathematics), Forward backward, Parton, 01 natural sciences, Color-glass condensate, Nuclear physics, 0103 physical sciences, Nuclear Experiment, 010306 general physics, Centrality, STAR detector
Abstract: Forward-backward multiplicity correlation strengths have been measured for the first time with the STAR detector for Au+Au and $\textit{p+p}$ collisions at $\sqrt{s_{NN}}$ = 200 GeV. Strong short and long range correlations are seen in central (0-10%) Au+Au collisions. The magnitude of these correlations decrease with decreasing centrality until only short range correlations are observed in 40-50% Au+Au collisions. The results are in agreement with predictions from the Dual Parton and Color Glass Condensate models.
Published: 2009

160. Azimuthal charged-particle correlations and possible local strong parity violation

Author: B. Erazmus, Neeraj Gupta, D. Cebra, S. Trentalange, M. Estienne, Marcelo Gameiro Munhoz, D. J. Prindle, H. Bichsel, Y. Zoulkarneeva, Donika Plyku, Q. Wang, M. J. Russcher, M. A. Lisa, Jing Zhou, L. Kotchenda, A. Ridiger, T. Sakuma, S. Heppelmann, K. Yip, J. S. Wang, D. D. Koetke, Guo-Liang Ma, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, Yannis K. Semertzidis, P. Filip, Sergei A. Voloshin, E. Shahaliev, G. Lin, G. Wang, P. Seyboth, E. J. Garcia-Solis, D. P. Mahapatra, J. C. Webb, R. S. Hollis, S. Sakai, Jorn Henning Putschke, A. V. Brandin, P. Pile, Anik Gupta, P. Kravtsov, H. Okada, S. Vokal, G. Eppley, R. Derradi de Souza, B. I. Abelev, Petr Jákl, J. E. Draper, M. J. Skoby, Frank Jm Geurts, D. G. Underwood, J. Pluta, E. Elhalhuli, G. Van Buren, S. S. Shi, Jifa Tian, Jianping Cheng, D. Thein, J. Sowinski, Christine Nattrass, K. Kang, C-Q. Li, M. J. M. Codrington, B. E. Bonner, O. D. Tsai, S. Bueltmann, T. W. Ludlam, J. M. Nelson, Yan Li, J. Kiryluk, N. Schmitz, W. J. Llope, B. Grube, P. Chung, R. E. Tribble, E. G. Judd, M. Kopytine, I. Sakrejda, M. Sharma, J. G. Cramer, M. Elnimr, M. C. Cervantes, J. Sandweiss, Subhasis Chattopadhyay, R. P. Scharenberg, H. S. Matis, H. M. Spinka, B. Haag, Jing-Han Chen, W. Peryt, W. Guryn, Elena Bruna, J. Joseph, Gerald W Hoffmann, G. M.S. Vasconcelos, J. X. Zuo, D. A. Morozov, Xiang Sun, Z. J. Sun, Y. Pandit, Zebo Tang, J. Engelage, P. R. Pujahari, Xuan Zhang, Jie Liu, R. Lednicky, O. G. Grebenyuk, T. D. S. Stanislaus, P. Djawotho, L. G. Efimov, L. H. Tarini, F. Videbæk, V. Ghazikhanian, Z. Chajecki, C. A. Whitten, Feng Jin, Hanna Paulina Zbroszczyk, T. P. Burton, Sevil Salur, Y. Wang, G. Webb, A. Geromitsos, H. H. Wieman, Y. Yang, J. Fedorisin, D. R. Beavis, Premomoy Ghosh, F. Liu, A. Bridgeman, T. S. McShane, Haiyan Wang, T. Ullrich, R. Corliss, Zhongbin Xu, Y. Panebratsev, D. Grosnick, A. G. Knospe, L. K. Mangotra, V. Kouchpil, I. K. Yoo, Jana Bielcikova, L. V. Nogach, Y. Fisyak, M. S. Ganti, C. Perkins, X. Z. Cai, S. J. Lindenbaum, A. Ogawa, S. Baumgart, S. LaPointe, N. Li, D. Tlusty, A. Gordon, R. Manweiler, Mirko Planinic, T. Peitzmann, Yi Zhang, J. Konzer, B. D. Anderson, E. Finch, O. I. Mall, W. Christie, Matthew Walker, Rolf K. Reed, Chitrasen Jena, H. Caines, A. Szanto de Toledo, J. Kapitan, Ki-Seok Choi, N. K. Pruthi, A. R. Timmins, D. R. Gangadharan, S. M. Dogra, David Jonathan Hofman, William Jacobs, Y. N. Gorbunov, Christina Markert, Y. P. Lu, V. Perevoztchikov, E. Hjort, Y. F. Wu, H. Masui, Y. J. Sun, B. V.K.S. Potukuchi, Yinina Ma, A. Hirsch, M. Calderón De La BarcaSánchez, A. Kechechyan, Andre Mischke, T. Pawlak, I. Bnzarov, Thomas Humanic, J. M. Landgraf, Peter Martin Jacobs, Bedangadas Mohanty, S. Kabana, J. Takahashi, A. K. Bhati, D. Keane, A. V. Alakhverdyants, M. Krus, R. Cendejas, Nikolai Smirnov, Sergey Timoshenko, J. Lauret, X. R. Wang, Y. P. Viyogi, B. Srivastava, P. Fachini, C-H. Lee, T. K. Nayak, Russell Richard Betts, K. S.F.F. Guimaraes, Wolfgang Korsch, B. Stringfellow, Jongmin Lee, Lijuan Ruan, V. Dzhordzhadze, R. L. Ray, M. Wada, Gary Westfall, Xiaofeng Zhu, Qian Yue, M. DePhillips, J. W. Harris, S. B. Nurushev, M. Shao, Michal Sumbera, Hank Crawford, R. Varma, D. Staszak, T. J. Hallman, T. Ljubicic, T. J. M. Symons, Yu A. Matulenko, B. S. Page, P. Sorensen, X. H. Shi, S. W. Wissink, D. P. Kikola, L. C. De Silva, P. Yepes, Peter Graham Jones, Sudhir Raniwala, K. Kajimoto, Nikola Poljak, Saskia Mioduszewski, A. Lebedev, O. Catu, J. Schambach, S. Dash, N. G. Minaev, Anju Bhasin, L. Didenko, R. P. Redwine, X. L. Wang, J. Seele, C. Zhong, S. Q. Zhang, R. S. Longacre, X. Dong, Ross Milner, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, Hengchang Liu, M. Zawisza, R. D. Majka, William Axel Leight, R. Zoulkarneev, A. M. Poskanzer, R. F. Clarke, L. Eun, W. M. Zhang, Andrey Vasiliev, Nu Xu, A. M. Hoffman, S. R. Klein, N. L. Subba, D. L. Olson, J. H. Thomas, A. A. Derevschikov, D. Kettler, G. S. Averichev, R. Fatemi, Michael Joseph Betancourt, H. G. Ritter, K. Krueger, J. L. Drachenberg, J. A. Vanfossen, M. Strikhanov, J. L. Romero, A. Feng, M. Cherney, Thomas Michael Cormier, Lokesh Kumar, Jay Roberts, A. H. Tang, Mikhail Tokarev, Ermes Braidot, J. C. Dunlop, Madan M. Aggarwal, Adam Ryszard Kisiel, Fuqiang Wang, Zubayer Ahammed, M. J. LeVine, Yong Xu, W. L. Zhan, Frank Simon, Mateusz Andrzej Ploskon, R. Witt, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, V. Yu Khodyrev, Subrata Pal, Donald M. McDonald, M. R. Dutta Mazumdar, O. V. Rogachevskiy, W. Xie, W. A. Love, I. Selyuzhenkov, Bernd Surrow, Pawan Kumar Netrakanti, G. Odyniec, C. A. Gagliardi, M. Pachr, Q. H. Xu, R. N. Singaraju, L. Huo, A. P. Meschanin, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, G. Igo, J. Bouchet, K. Kauder, Andrew Rose, Y. Zhao, Basanta Kumar Nandi, T. Tarnowsky, B. Biritz, V. A. Okorokov, A. Chikanian, V. N. Tram, V. Fine, Jake Y. Chen, D. Arkhipkin, A. Hamed, I. Koralt, M. J. Ng, V. I. Kravtsov, G. Van Nieuwenhuizen, P. Kurnadi, A. Iordanova, Zhenyu Zhang, M. R. Cosentino, F. Benedosso, C. Roy, T. G. Dedovich, S. C. Phatak, P. Chaloupka, S. Margetis, H. F. Chen, J. Seger, M. S. Daugherity, L. C. Bland, L. Liu, C. L. Jones, M. C. Suarez, A. Kocoloski, J. Ulery, H. Z. Huang, O. Barannikova, and R. Bellwied
Subjects: Quark, Particle physics, QCD vacuum, Hadron, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, Nuclear physics, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Nuclear Collisions, parity violation, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Heavy-Ion Collisions, Observable, Fermion, NATURAL SCIENCES. Physics, Charged particle, PRIRODNE ZNANOSTI. Fizika, Hot Qcd, High Energy Physics::Experiment, charged hadrons, STAR detector
Abstract: Parity-odd domains, corresponding to non-trivial topological solutions of the QCD vacuum, might be created during relativistic heavy ion collisions. These domains are predicted to lead to charge separation of quarks along the system's orbital momentum axis. We investigate a three particle azimuthal correlator which is a \P even observable, but directly sensitive to the charge separation effect. We report measurements of charged hadrons near center-of-mass rapidity with this observable in Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$=200 GeV using the STAR detector. A signal consistent with several expectations from the theory is detected. We discuss possible contributions from other effects that are not related to parity violation., Comment: version as published in Physical Review Letters. Figure 3 from earlier versions has been removed to add room for new Figure 1
Published: 2009

161. Improved limit on the muon electric dipole moment

Author: L. Duong, Rasmus Larsen, H. Deng, Yannis K. Semertzidis, C. J. G. Onderwater, D. Winn, Satish Dhawan, J. M. Paley, C. Timmermans, M. Sossong, J. Pretz, G.V. Fedotovich, M. Deile, P. M. Shagin, Yu. M. Shatunov, J. P. Miller, T. Qian, F. Krienen, X. Huang, G. T. Danby, N.M. Ryskulov, B. L. Roberts, P. Cushman, R. Prigl, J. Mi, V. P. Druzhinin, Yuri F. Orlov, R. McNabb, D. Kawall, Wuzheng Meng, Y. Mizumachi, S. Sedykh, D. Urner, I. Kronkvist, D. Nikas, D. Zimmerman, M. Grosse-Perdekamp, Q. Peng, J. Kindem, B. Bousquet, E. P. Sichtermann, M. F. Hare, D.N. Grigoriev, C. C. Polly, H. N. Brown, Klaus-Peter Jungmann, E. P. Solodov, O. Rind, G. Bunce, A. Lam, I. Logashenko, D. W. Hertzog, P. von Walter, A. Grossmann, Y.Y. Lee, Masahiko Iwasaki, B.I. Khazin, Frederick Gray, William Deninger, M. Kawamura, D. Warburton, V. W. Hughes, Lawrence Sulak, G. W. Bennett, Alexei Trofimov, E. Efstathiadis, A. Steinmetz, William Morse, F. J. M. Farley, G. zu Putlitz, S. I. Redin, R. M. Carey, A. Yamamoto, C. S. Özben, S. Giron, P. T. Debevec, and Research unit Nuclear & Hadron Physics
Subjects: Physics, Nuclear and High Energy Physics, Muon, Anomalous magnetic dipole moment, Physics::Instrumentation and Detectors, POSITIVE MUON, G-2, FOS: Physical sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Electric dipole moment, Precession, Physics::Accelerator Physics, High Energy Physics::Experiment, Combined result, Limit (mathematics), ANOMALOUS MAGNETIC-MOMENT, Spin (physics), Storage ring
Abstract: Three independent searches for an electric dipole moment (EDM) of the positive and negative muons have been performed, using spin precession data from the muon g-2 storage ring at Brookhaven National Laboratory. Details on the experimental apparatus and the three analyses are presented. Since the individual results on the positive and negative muon, as well as the combined result, d=-0.1(0.9)E-19 e-cm, are all consistent with zero, we set a new muon EDM limit, |d| < 1.9E-19 e-cm (95% C.L.). This represents a factor of 5 improvement over the previous best limit on the muon EDM., 19 pages, 15 figures, 7 tables
Published: 2009

162. Pion interferometry inAu+AuandCu+Cucollisions atsNN=62.4and 200 GeV

Author: Q. H. Xu, N. Xu, V. Ghazikhanian, P. Filip, R. N. Singaraju, A. P. Meschanin, G. D. Westfall, S. S. Shi, T. S. McShane, S. Chattopadhyay, Petr Jákl, H. Z. Huang, S. Vokal, Marek Bombara, B. E. Bonner, Z. Xu, G. Lin, F. Du, L. C. Bland, J. L. Romero, S. Baumgart, O. D. Tsai, Raimond Snellings, Anik Gupta, L. V. Nogach, M. J. Ng, Matthew Walker, V. I. Kravtsov, Xiangming Sun, J. Kiryluk, M. Elnimr, M. C. Cervantes, P. Kurnadi, M. J. Skoby, Frank Jm Geurts, E. Elhalhuli, Zhenyu Zhang, M. R. Cosentino, E. Finch, Jifa Tian, Y. J. Sun, F. Benedosso, L. K. Mangotra, B. D. Anderson, G. Eppley, D. A. Morozov, J. Pluta, N. K. Pruthi, M. Sharma, M. Pachr, R. E. Tribble, Gerald W Hoffmann, R. Manweiler, S. Kabana, G. Wang, Y. P. Viyogi, T. G. Dedovich, W. T. Waggoner, N. G. Minaev, L. Liu, C. L. Jones, R. S. Longacre, Madan M. Aggarwal, A. M. Poskanzer, T. Sakuma, S. C. Phatak, Sergey Timoshenko, A. Ridiger, Sevil Salur, Y. Wang, M. C. Suarez, I. Sakrejda, P. Seyboth, E. J. Garcia-Solis, T. J. Humanic, Chang-Hwan Lee, Fuqiang Wang, Debasish Das, Raghunath Sahoo, A. Kechechyan, Andre Mischke, B. Haag, S. Heppelmann, V. Fine, A. Szanto de Toledo, J. Kapitan, M. A.C. Lamont, Ermes Braidot, G. Igo, J. X. Zuo, M. Krus, R. Cendejas, S. M. Dogra, Yong Xu, C. A. Whitten, Feng Jin, V. Emelianov, Adam Ryszard Kisiel, H. J. Crawford, Zebo Tang, Qian Yue, Wolfgang Korsch, Guo-Liang Ma, J. Bouchet, William Axel Leight, A. K. Bhati, D. Keane, J. C. Dunlop, I. K. Yoo, J. W. Harris, R. Corliss, Nikolai Smirnov, S. R. Klein, T. Pawlak, J. Engelage, R. Derradi de Souza, B. I. Abelev, R. Varma, R. Fatemi, Michael Joseph Betancourt, Z. Chajecki, D. Thein, Zubayer Ahammed, K. Krueger, S. LaPointe, N. Li, D. D. Koetke, J. E. Draper, J. Mitchell, S. J. Lindenbaum, Yu A. Matulenko, B. S. Page, X. Z. Cai, C. Perkins, J. A. Vanfossen, L. G. Efimov, T. Tarnowsky, N. L. Subba, M. Kopytine, A. Gordon, D. L. Olson, M. J. LeVine, Andrew Rose, Y. Zhao, D. P. Kikola, M. Tokarev, T. Peitzmann, B. Stringfellow, W. He, M. J. M. Codrington, Frank Simon, T. K. Nayak, M. Cherney, Thomas Michael Cormier, J. S. Wang, Lokesh Kumar, M. Sarsour, I. Selyuzhenkov, Wei Xie, Xuan Wang, A. A. Derevschikov, D. R. Gangadharan, A. L. Trattner, A. S. Hirsch, J. C. Webb, Russell Richard Betts, T. D. S. Stanislaus, J. Ulery, J. G. Cramer, E. G. Judd, Bernd Surrow, P. Kravtsov, A. Ogawa, H. F. Chen, Anthony R. Timmins, Jana Bielcikova, H. H. Wieman, J. Joseph, D. G. Underwood, Thomas A. Trainor, W. R. Edwards, G. M.S. Vasconcelos, Jorn Henning Putschke, A. Geromitsos, A. V. Brandin, E. P. Sichtermann, H. Okada, P. Yepes, Premomoy Ghosh, H. G. Ritter, David Jonathan Hofman, Y. Panebratsev, J. L. Drachenberg, Lijuan Ruan, P. Sorensen, X. H. Shi, S. E. Vigdor, J. Balewski, Christian Claude Kuhn, Rashmi Raniwala, Claude Andre Pruneau, Peter Graham Jones, J. M. Landgraf, Bedangadas Mohanty, Pawan Kumar Netrakanti, A. Stadnik, Y. Pandit, D. Grosnick, V. Kouchpil, Y. Fisyak, O. Barannikova, R. Bellwied, A. Feng, T. Ullrich, A. H. Tang, M. Shao, C-Q. Li, T. J. Hallman, J. Cheng, L. Didenko, Peter Martin Jacobs, L. Gaillard, T. J. M. Symons, R. Zoulkarneev, R. P. Scharenberg, Christina Markert, Jay Roberts, J. Takahashi, N. Schmitz, Yang Yang, C. A. Gagliardi, L. C. De Silva, S. B. Nurushev, E. Shahaliev, H. S. Matis, W. J. Llope, M. Strikhanov, J. Sowinski, M. Heinz, A. Shabetai, Lee Stuart Barnby, L. Eun, M. Wada, B. Grube, Yi Zhang, G. Van Buren, M. Bystersky, Jaroslav Bielcik, P. Fachini, K. S.F.F. Guimaraes, Z. J. Sun, W. Guryn, A. M. Vander Molen, W. W. Jacobs, F. Videbæk, M. DePhillips, J. Lauret, G. Webb, E. Hjort, O. G. Grebenyuk, M. S. Daugherity, T. W. Ludlam, Michal Sumbera, Ki-Seok Choi, M. R. Dutta Mazumdar, J. M. Nelson, J. Fedorisin, O. Catu, Rolf K. Reed, J. Sandweiss, R. Lednicky, Yan Li, X. L. Wang, M. S. Ganti, A. G. Knospe, C. Zhong, R. Witt, P. Djawotho, O. V. Rogachevskiy, Jing-Han Chen, W. Peryt, S. W. Wissink, A. Kocoloski, Nikola Poljak, Chitrasen Jena, S. Dash, Y. P. Lu, S. Mioduszewski, V. Yu Khodyrev, W. A. Love, V. Perevoztchikov, K. Kang, D. Tlusty, Mirko Planinic, Sergey Panitkin, B. K. Srivastava, I. M. Vasilevski, S. Bueltmann, M. van Leeuwen, X. Dong, S. K. Pal, Y. N. Gorbunov, Boris Hippolyte, Elena Bruna, Jongmin Lee, R. L. Ray, D. Staszak, T. Ljubicic, H. Caines, Sudhir Raniwala, Xuan Zhang, Jie Liu, Hanna Paulina Zbroszczyk, H. Bichsel, G. Odyniec, D. R. Beavis, Y. Zoulkarneeva, Q. Wang, M. J. Russcher, K. Kajimoto, M. Zawisza, H. M. Spinka, O. I. Mall, J. H. Thomas, Jing Zhou, D. Kettler, G. S. Averichev, Marcelo Gameiro Munhoz, D. J. Prindle, B. V.K.S. Potukuchi, M. A. Lisa, Yu-Gang Ma, B. Erazmus, T. P. Burton, L. Kotchenda, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, D. P. Mahapatra, R. S. Hollis, M. Calderón DeLaBarca Sánchez, Sergey Voloshin, Christine Nattrass, F. Liu, J. Baudot, W. Zhan, Neeraj Gupta, D. Cebra, S. Trentalange, M. Estienne, R. D. Majka, J. Y. Chen, S. Margetis, R. F. Clarke, J. Schambach, Anju Bhasin, R. P. Redwine, S. Q. Zhang, A. Lebedev, M. Botje, Ross Milner, W. Christie, W. M. Zhang, Andrey Vasiliev, Janet Elizabeth Seger, A. M. Hoffman, A. Chikanian, V. N. Tram, D. Arkhipkin, A. Hamed, A. Iordanova, Yuanfang Wu, Basanta Kumar Nandi, B. Biritz, V. A. Okorokov, C. Roy, and P. Chaloupka
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 7. Clean energy, 01 natural sciences, Charged particle, Nuclear physics, Interferometry, Pion, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Multiplicity (chemistry), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Scaling, STAR detector
Abstract: We present a systematic analysis of two-pion interferometry in Au+Au collisions at √sNN=62.4 GeV and Cu+Cu collisions at √sNN=62.4 and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The multiplicity and transverse momentum dependences of the extracted correlation lengths (radii) are studied. The scaling with charged particle multiplicity of the apparent system volume at final interaction is studied for the RHIC energy domain. The multiplicity scaling of the measured correlation radii is found to be independent of colliding system and collision energy.
Published: 2009

163. Measurements ofϕmeson production in relativistic heavy-ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC)

Author: 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, S. Baumgart, D. R. Beavis, R. Bellwied, F. Benedosso, R. R. Betts, S. Bhardwaj, A. Bhasin, A. K. Bhati, H. Bichsel, J. Bielcik, J. Bielcikova, B. Biritz, L. C. Bland, S. -L. Blyth, M. Bombara, B. E. Bonner, M. Botje, J. Bouchet, E. Braidot, A. V. Brandin, E. Bruna, S. Bueltmann, T. P. Burton, M. Bystersky, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, J. Callner, O. Catu, D. Cebra, R. Cendejas, M. C. Cervantes, Z. Chajecki, P. Chaloupka, S. Chattopadhyay, H. F. Chen, J. H. Chen, J. Y. Chen, J. Cheng, M. Cherney, A. Chikanian, K. E. Choi, W. Christie, S. U. Chung, R. F. Clarke, M. J. M. Codrington, J. P. Coffin, T. M. Cormier, M. R. Cosentino, J. G. Cramer, H. J. Crawford, D. Das, S. Dash, M. Daugherity, C. De Silva, T. G. Dedovich, M. DePhillips, A. A. Derevschikov, R. Derradi de Souza, L. Didenko, P. Djawotho, S. M. Dogra, X. Dong, J. L. Drachenberg, J. E. Draper, F. Du, J. C. Dunlop, M. R. Dutta Mazumdar, W. R. Edwards, L. G. Efimov, E. Elhalhuli, M. Elnimr, V. Emelianov, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, L. Eun, P. Fachini, R. Fatemi, J. Fedorisin, A. Feng, P. Filip, E. Finch, V. Fine, Y. Fisyak, C. A. Gagliardi, L. Gaillard, D. R. Gangadharan, M. S. Ganti, E. Garcia-Solis, V. Ghazikhanian, P. Ghosh, Y. N. Gorbunov, A. Gordon, O. Grebenyuk, D. Grosnick, B. Grube, S. M. Guertin, K. S. F. F. Guimaraes, A. Gupta, N. Gupta, W. Guryn, B. Haag, T. J. Hallman, A. Hamed, J. W. Harris, W. He, M. Heinz, S. Heppelmann, B. Hippolyte, A. Hirsch, A. M. Hoffman, G. W. Hoffmann, D. J. Hofman, R. S. Hollis, H. Z. Huang, T. J. Humanic, G. Igo, A. Iordanova, P. Jacobs, W. W. Jacobs, P. Jakl, F. Jin, P. G. Jones, J. Joseph, E. G. Judd, S. Kabana, K. Kajimoto, K. Kang, J. Kapitan, M. Kaplan, D. Keane, A. Kechechyan, D. Kettler, V. Yu. Khodyrev, J. Kiryluk, A. Kisiel, S. R. Klein, A. G. Knospe, A. Kocoloski, D. D. Koetke, M. Kopytine, L. Kotchenda, V. Kouchpil, P. Kravtsov, V. I. Kravtsov, K. Krueger, M. Krus, C. Kuhn, L. Kumar, P. Kurnadi, M. A. C. Lamont, J. M. Landgraf, S. LaPointe, J. Lauret, A. Lebedev, R. Lednicky, C. -H. Lee, M. J. LeVine, C. Li, Y. Li, G. Lin, X. Lin, S. J. Lindenbaum, M. A. Lisa, F. Liu, H. 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, M. I. Mall, L. K. Mangotra, R. Manweiler, S. Margetis, C. Markert, H. S. Matis, Yu. A. Matulenko, T. S. McShane, 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, M. J. Ng, L. V. Nogach, S. B. Nurushev, G. Odyniec, A. Ogawa, H. Okada, V. Okorokov, D. Olson, M. Pachr, B. S. Page, S. K. Pal, Y. Pandit, Y. Panebratsev, T. Pawlak, T. Peitzmann, V. Perevoztchikov, C. Perkins, W. Peryt, S. C. Phatak, M. Planinic, J. Pluta, N. Poljak, A. M. Poskanzer, B. V. K. S. Potukuchi, D. Prindle, C. Pruneau, N. K. Pruthi, J. Putschke, R. Raniwala, S. Raniwala, R. L. Ray, R. Reed, A. Ridiger, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, A. Rose, C. Roy, L. Ruan, M. J. Russcher, V. Rykov, R. Sahoo, I. Sakrejda, T. Sakuma, S. Salur, J. Sandweiss, M. Sarsour, J. Schambach, R. P. Scharenberg, N. Schmitz, J. Seger, I. Selyuzhenkov, P. Seyboth, A. Shabetai, E. Shahaliev, M. Shao, M. Sharma, S. S. Shi, X. -H. Shi, E. P. Sichtermann, F. Simon, R. N. Singaraju, M. J. Skoby, N. Smirnov, R. Snellings, P. Sorensen, J. Sowinski, H. M. Spinka, B. Srivastava, A. Stadnik, T. D. S. Stanislaus, D. Staszak, M. Strikhanov, B. Stringfellow, A. A. P. Suaide, M. C. Suarez, N. L. Subba, M. Sumbera, X. M. Sun, Y. Sun, Z. Sun, B. Surrow, T. J. M. Symons, A. Szanto de Toledo, J. Takahashi, A. H. Tang, Z. Tang, T. Tarnowsky, D. Thein, J. H. Thomas, J. Tian, A. R. Timmins, S. Timoshenko, null Tlusty, M. Tokarev, T. A. Trainor, V. N. Tram, A. L. Trattner, S. Trentalange, R. E. Tribble, O. D. Tsai, J. Ulery, T. Ullrich, D. G. Underwood, G. Van Buren, M. van Leeuwen, A. M. Vander Molen, J. A. Vanfossen, R. Varma, G. M. S. Vasconcelos, I. M. Vasilevski, A. N. Vasiliev, F. Videbaek, S. E. Vigdor, Y. P. Viyogi, S. Vokal, S. A. Voloshin, M. Wada, W. T. Waggoner, F. Wang, G. Wang, J. S. Wang, Q. Wang, X. Wang, X. L. Wang, Y. Wang, J. C. Webb, G. D. Westfall, C. Whitten, H. Wieman, S. W. Wissink, R. Witt, Y. Wu, N. Xu, Q. H. Xu, Y. Xu, Z. Xu, P. Yepes, I. -K. Yoo, Q. Yue, M. Zawisza, H. Zbroszczyk, W. Zhan, H. Zhang, S. Zhang, W. M. Zhang, Y. Zhang, Z. P. Zhang, Y. Zhao, C. Zhong, J. Zhou, R. Zoulkarneev, Y. Zoulkarneeva, J. X. Zuo, Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Quark, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Nuclear Theory, Hadron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Phi meson, 01 natural sciences, 7. Clean energy, Hadronization, Pion, 25.75.Dw, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We present results for the measurement of $\phi$ meson production via its charged kaon decay channel $\phi \to K^+K^-$ in Au+Au collisions at $\sqrt{s_{_{NN}}}=62.4$, 130, and 200 GeV, and in $p+p$ and $d$+Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV from the STAR experiment at the BNL Relativistic Heavy Ion Collider (RHIC). The midrapidity ($|y
Published: 2009

164. Systematic measurements of identified particle spectra inpp,d+Au, andAu+Aucollisions at the STAR detector

Author: R. Manweiler, Hongfang Liu, H. Z. Huang, S. Vokal, A. M. Poskanzer, J. Engelage, J. Kiryluk, A. Kechechyan, Andre Mischke, M. Krus, R. Cendejas, D. A. Morozov, M. Heinz, Premomoy Ghosh, David Jonathan Hofman, J. M. Landgraf, O. I. Mall, Ermes Braidot, M. Calderon De La Barca Sanchez, O. Catu, Adam Ryszard Kisiel, J. S. Wang, M. Strikhanov, B. Haag, Zebo Tang, B. V.K.S. Potukuchi, H. J. Crawford, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, D. Thein, M. Kopytine, M. Tokarev, T. D. S. Stanislaus, A. Kocoloski, S. Dash, A. Ridiger, H. Caines, Ki-Seok Choi, S. Heppelmann, J. Sandweiss, D. D. Koetke, J. E. Draper, F. Videbæk, M. S. Ganti, Y. P. Lu, Sergei A. Voloshin, V. Perevoztchikov, J. P. Coffin, B. E. Bonner, O. D. Tsai, W. Christie, M. Elnimr, W. M. Zhang, M. C. Cervantes, Andrey Vasiliev, Sevil Salur, A. Stadnik, Peter Martin Jacobs, J. Takahashi, S. B. Nurushev, M. Sharma, V. Fine, Z. Chajecki, C. Perkins, X. L. Wang, C. Zhong, David Lynn, Q. Wang, M. J. Russcher, M. van Leeuwen, X. Dong, H. H. Wieman, M. DePhillips, Michal Sumbera, D. Tlusty, Mirko Planinic, R. Fatemi, Y. Bai, S. W. Wissink, Y. Zhang, Nikola Poljak, Y. N. Gorbunov, L. C. Bland, Yu-Gang Ma, Janet Elizabeth Seger, N. G. Minaev, H. Zhang, K. Krueger, J. A. Vanfossen, S. S. Shi, A. M. Hoffman, Thomas Peitzmann, I. Selyuzhenkov, Z. Xu, G. Lin, J. W. Harris, Anthony R. Timmins, Jing Zhou, W. J. Llope, Sergey Timoshenko, K. Kang, R. L. Ray, D. Staszak, L. Kotchenda, J. Callner, W. He, M. Cherney, Thomas Michael Cormier, P. Yepes, S. Bueltmann, A. H. Tang, I. Sakrejda, Lokesh Kumar, J. H. Thomas, T. Ljubicic, F. Du, M. Sarsour, M. J. Skoby, C. A. Whitten, Feng Jin, A. Chikanian, V. N. Tram, E. Elhalhuli, Rama Narayana Singaraju, J. X. Zuo, Jifa Tian, V. Rykov, T. P. Burton, Bedangadas Mohanty, L. Liu, B. Erazmus, Bernd Surrow, Sudhir Raniwala, W. T. Waggoner, L. V. Nogach, M. J. Ng, M. C. Suarez, E. P. Sichtermann, Pawan Kumar Netrakanti, Jana Bielcikova, Morton Kaplan, S. J. Lindenbaum, F. Liu, Chang-Hwan Lee, Raimond Snellings, L. K. Mangotra, V. I. Kravtsov, P. Djawotho, A. P. Meschanin, J. Balewski, Rashmi Raniwala, Neeraj Gupta, D. Cebra, D. Arkhipkin, A. Hamed, N. Xu, P. Filip, S. LaPointe, Claude Andre Pruneau, Jie Liu, S. Trentalange, Xiangming Sun, G. D. Westfall, C. A. Gagliardi, P. Kurnadi, A. Gordon, M. Estienne, Y. Panebratsev, G. Van Buren, A. Iordanova, R. D. Majka, Petr Jákl, T. Ullrich, Xuan Wang, Zhenyu Zhang, C. Nepali, Hanna Paulina Zbroszczyk, Jorn Henning Putschke, M. Botje, A. Szanto de Toledo, A. Ogawa, R. Zoulkarneev, D. Grosnick, J. Y. Chen, V. Kouchpil, S. Margetis, R. F. Clarke, J. Schambach, Lee Stuart Barnby, H. F. Chen, M. R. Cosentino, J. Kapitan, D. Kettler, D. R. Beavis, W. R. Edwards, Anju Bhasin, A. V. Brandin, S. U. Chung, M. Wada, T. W. Ludlam, H. Okada, L. Eun, Jaroslav Bielcik, S. M. Dogra, C-Q. Li, Marcelo Gameiro Munhoz, D. J. Prindle, J. M. Nelson, S. Q. Zhang, F. Benedosso, A. Lebedev, S. E. Vigdor, J. H. Chen, M. Bystersky, Yan Li, W. Peryt, Christian Claude Kuhn, R. P. Scharenberg, Christina Markert, Yuanfang Wu, M. R. Dutta Mazumdar, T. Pawlak, O. V. Rogachevskiy, M. A. Lisa, H. S. Matis, Basanta Kumar Nandi, T. G. Dedovich, G. S. Averichev, W. A. Love, X. Lin, T. Sakuma, B. Biritz, R. S. Longacre, S. C. Phatak, V. A. Okorokov, W. W. Jacobs, S. M. Guertin, B. Grube, Alexandre Alarcon Do Passo Suaide, Madan M. Aggarwal, Fuqiang Wang, C. Roy, Yong Xu, C. De Silva, J. Lauret, W. Guryn, P. Chaloupka, Debasish Das, Raghunath Sahoo, Frank Simon, O. G. Grebenyuk, Rolf K. Reed, R. Lednicky, L. Molnar, M. A.C. Lamont, J. Fedorisin, K. Kajimoto, G. Igo, D. P. Mahapatra, B. D. Anderson, A. G. Knospe, Russell Richard Betts, D. G. Underwood, Lijuan Ruan, J. Bouchet, M. S. Daugherity, M. Shao, T. J. Hallman, J. Cheng, T. J. M. Symons, R. S. Hollis, J. Millane, I. K. Yoo, Andrew Rose, Y. Zhao, N. K. Pruthi, M. Zawisza, H. M. Spinka, G. Eppley, Xu Cai, J. Pluta, D. R. Gangadharan, E. G. Judd, J. Ulery, H. G. Ritter, O. Barannikova, R. Bellwied, L. Gaillard, M. Pachr, R. E. Tribble, V. Emelianov, A. K. Bhati, D. Keane, Gerald W Hoffmann, Nikolai Smirnov, J. Mitchell, L. G. Efimov, T. K. Nayak, Christine Nattrass, Subhasis Chattopadhyay, M. L. Miller, Elena Bruna, Guo-Liang Ma, A. S. Hirsch, J. C. Webb, P. Kravtsov, J. Sowinski, G. Wang, P. Seyboth, E. J. Garcia-Solis, R. Witt, R. Derradi de Souza, B. I. Abelev, S. Mioduszewski, V. Yu Khodyrev, J. Baudot, W. Zhan, Yanchu Wang, Subrata Pal, B. K. Srivastava, I. M. Vasilevski, M. J. M. Codrington, A. Gupta, S. Bhardwaj, Boris Hippolyte, A. Shabetai, T. S. McShane, J. C. Dunlop, Q. H. Xu, Zubayer Ahammed, Z. J. Sun, M. J. LeVine, J. Joseph, G. M.S. Vasconcelos, Y. Pandit, S. Baumgart, N. Schmitz, E. Shahaliev, J. L. Drachenberg, V. Ghazikhanian, A. Feng, Marek Bombara, J. L. Romero, Jay Roberts, Y. Fisyak, E. Finch, A. M. Vander Molen, E. Hjort, Thomas Humanic, P. Sorensen, Y. J. Sun, X. H. Shi, Peter Graham Jones, L. Didenko, S. Kabana, Y. P. Viyogi, S. R. Klein, T. Tarnowsky, N. L. Subba, D. L. Olson, A. A. Derevschikov, A. L. Trattner, J. G. Cramer, P. Fachini, K. S.F.F. Guimaraes, Qian Yue, R. Varma, Yu A. Matulenko, B. S. Page, and B. Stringfellow
Subjects: Elastic scattering, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Strangeness production, Strangeness, Kinetic energy, 01 natural sciences, 7. Clean energy, Charged particle, Hadronization, Nuclear physics, Baryon, 13. Climate action, 0103 physical sciences, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: Identified charged-particle spectra of pi(+/-), K(+/-), p, and (p) over bar at midrapidity (vertical bar y vertical bar < 0.1) measured by the dE/dx method in the STAR (solenoidal tracker at the BNL Relativistic Heavy Ion Collider) time projection chamber are reported for pp and d + Au collisions at root s(NN) = 200 GeV and for Au + Au collisions at 62.4, 130, and 200 GeV. Average transverse momenta, total particle production, particle yield ratios, strangeness, and baryon production rates are investigated as a function of the collision system and centrality. The transverse momentum spectra are found to be flatter for heavy particles than for light particles in all collision systems; the effect is more prominent for more central collisions. The extracted average transverse momentum of each particle species follows a trend determined by the total charged-particle multiplicity density. The Bjorken energy density estimate is at least several GeV/fm(3) for a formation time less than 1 fm/c. A significantly larger net-baryon density and a stronger increase of the net-baryon density with centrality are found in Au + Au collisions at 62.4 GeV than at the two higher energies. Antibaryon production relative to total particle multiplicity is found to be constant over centrality, but increases with the collision energy. Strangeness production relative to total particle multiplicity is similar at the three measured RHIC energies. Relative strangeness production increases quickly with centrality in peripheral Au + Au collisions, to a value about 50% above the pp value, and remains rather constant in more central collisions. Bulk freeze-out properties are extracted from thermal equilibrium model and hydrodynamics-motivated blast-wave model fits to the data. Resonance decays are found to have little effect on the extracted kinetic freeze-out parameters because of the transverse momentum range of our measurements. The extracted chemical freeze-out temperature is constant, independent of collision system or centrality; its value is close to the predicted phase-transition temperature, suggesting that chemical freeze-out happens in the vicinity of hadronization and the chemical freeze-out temperature is universal despite the vastly different initial conditions in the collision systems. The extracted kinetic freeze-out temperature, while similar to the chemical freeze-out temperature in pp, d + Au, and peripheral Au + Au collisions, drops significantly with centrality in Au + Au collisions, whereas the extracted transverse radial flow velocity increases rapidly with centrality. There appears to be a prolonged period of particle elastic scatterings from chemical to kinetic freeze-out in central Au + Au collisions. The bulk properties extracted at chemical and kinetic freeze-out are observed to evolve smoothly over the measured energy range, collision systems, and collision centralities.
Published: 2009

165. Observation of Two-Source Interference in the Photoproduction Reaction AuAu -> AuAu rho(0)

Author: R. P. Redwine, Raimond Snellings, Xiangming Sun, C. Li, B. Erazmus, S. Q. Zhang, A. Lebedev, B. D. Anderson, N. K. Pruthi, Guo-Liang Ma, J. Ulery, G. Eppley, B. Haag, J. Pluta, I. Selyuzhenkov, M. Botje, M. Pachr, Vitaly Okorokov, R. E. Tribble, A. Szanto de Toledo, Gerald W Hoffmann, M. Calderon De La Barca Sanchez, H. G. Ritter, D. Tlusty, Mirko Planinic, Ross Milner, Neeraj Gupta, D. Cebra, J. Engelage, Y. Fisyak, J. Kapitan, A. Chikanian, S. M. Dogra, Zebo Tang, V. N. Tram, C. Nepali, L. Kotchenda, O. Catu, S. Trentalange, Jorn Henning Putschke, O. Barannikova, R. Bellwied, V. Fine, L. Gaillard, A. S. Hirsch, J. C. Webb, L. K. Mangotra, T. Pawlak, A. Kocoloski, M. Estienne, H. Z. Huang, S. Vokal, N. Xu, P. Filip, A. V. Brandin, Bernd Surrow, E. P. Sichtermann, H. Okada, L. C. Bland, A. M. Vander Molen, S. Dash, Z. Chajecki, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, R. Manweiler, R. Witt, R. Fatemi, Michael Joseph Betancourt, E. Hjort, Hongfang Liu, B. Grube, M. DePhillips, Michal Sumbera, K. Krueger, D. Arkhipkin, A. Hamed, P. Kravtsov, Sergey Voloshin, Christine Nattrass, Y. Bai, Y. N. Gorbunov, C. Perkins, A. M. Poskanzer, G. D. Westfall, David Jonathan Hofman, Pawan Kumar Netrakanti, J. W. Harris, L. Liu, C. L. Jones, S. Mioduszewski, Premomoy Ghosh, J. M. Landgraf, David Lynn, Q. Wang, M. J. Russcher, J. H. Thomas, D. Kettler, M. Strikhanov, J. A. Vanfossen, J. Balewski, A. Iordanova, S. E. Vigdor, Christian Claude Kuhn, M. C. Suarez, Sergey Timoshenko, S. W. Wissink, Rashmi Raniwala, Claude Andre Pruneau, F. Liu, Petr Jákl, J. Sowinski, Y. Zhang, V. Yu Khodyrev, T. Peitzmann, A. Kechechyan, Andre Mischke, C. A. Gagliardi, J. Kiryluk, C. Roy, Nikola Poljak, Ki-Seok Choi, Z. Xu, G. Lin, G. S. Averichev, W. Guryn, T. Ullrich, J. Callner, Anthony R. Timmins, R. N. Singaraju, B. K. Srivastava, A. Stadnik, Peter Martin Jacobs, J. Sandweiss, I. M. Vasilevski, S. Bueltmann, Anik Gupta, M. Krus, R. Cendejas, A. P. Meschanin, W. He, O. G. Grebenyuk, R. Zoulkarneev, S. M. Guertin, D. A. Morozov, P. Yepes, V. Emelianov, A. K. Bhati, M. Heinz, Lee Stuart Barnby, D. Keane, M. Cherney, J. Fedorisin, Alexandre Alarcon Do Passo Suaide, D. Thein, Thomas Michael Cormier, A. H. Tang, H. Zhang, Jaroslav Bielcik, Jing Zhou, M. J. Skoby, K. Kajimoto, J. Baudot, W. Zhan, L. Eun, Lokesh Kumar, A. G. Knospe, E. Elhalhuli, R. D. Majka, C. De Silva, A. Ridiger, D. P. Mahapatra, Wei Xie, S. Bhardwaj, Nikolai Smirnov, M. S. Daugherity, M. Sarsour, Russell Richard Betts, R. L. Ray, R. S. Hollis, Jifa Tian, J. Takahashi, Xuan Wang, J. Joseph, Boris Hippolyte, J. Y. Chen, I. Sakrejda, A. Ogawa, J. L. Drachenberg, S. Margetis, R. F. Clarke, J. Schambach, J. Mitchell, K. Kang, L. G. Efimov, Elena Bruna, M. R. Dutta Mazumdar, D. G. Underwood, T. P. Burton, D. Staszak, G. M.S. Vasconcelos, M. Kopytine, S. Heppelmann, H. F. Chen, Thomas A. Trainor, W. R. Edwards, S. U. Chung, I. K. Yoo, S. S. Shi, Marcelo Gameiro Munhoz, D. J. Prindle, O. V. Rogachevskiy, S. B. Nurushev, W. Christie, Lijuan Ruan, M. Tokarev, T. Ljubicic, W. T. Waggoner, P. Chaloupka, R. S. Longacre, Y. Pandit, C-H. Lee, T. K. Nayak, M. Sharma, J. X. Zuo, W. M. Zhang, Andrey Vasiliev, H. Caines, Sudhir Raniwala, N. Schmitz, R. P. Scharenberg, Christina Markert, M. Zawisza, H. M. Spinka, A. Feng, M. Shao, D. D. Koetke, W. A. Love, E. Shahaliev, H. S. Matis, F. Du, Debasish Das, Raghunath Sahoo, D. R. Gangadharan, N. G. Minaev, T. J. Hallman, J. Cheng, T. J. M. Symons, Jay Roberts, Janet Elizabeth Seger, J. E. Draper, A. M. Hoffman, E. G. Judd, M. A.C. Lamont, V. Rykov, L. V. Nogach, G. Igo, V. Ghazikhanian, T. D. S. Stanislaus, W. W. Jacobs, M. A. Lisa, M. J. Ng, Y. Panebratsev, D. Grosnick, V. Kouchpil, V. I. Kravtsov, Yuanfang Wu, X. L. Wang, J. Bouchet, S. LaPointe, N. Li, J. P. Coffin, C. Zhong, J. Lauret, F. Videbæk, Bedangadas Mohanty, H. H. Wieman, P. Kurnadi, Marek Bombara, A. Gordon, R. Lednicky, P. Djawotho, Yinina Ma, M. van Leeuwen, X. Dong, Madan M. Aggarwal, Sukalyan Chattopadhyay, Fuqiang Wang, Zhenyu Zhang, M. R. Cosentino, J. L. Romero, S. K. Pal, Basanta Kumar Nandi, C. A. Whitten, Feng Jin, Andrew Rose, M. S. Ganti, Rolf K. Reed, B. Biritz, M. Wada, Y. Zhao, J. H. Chen, M. Bystersky, R. Corliss, Ermes Braidot, J. S. Wang, Yong Xu, Morton Kaplan, F. Benedosso, B. E. Bonner, X. Z. Cai, O. D. Tsai, J. C. Dunlop, E. Finch, S. J. Lindenbaum, Adam Ryszard Kisiel, M. Elnimr, M. C. Cervantes, Y. P. Lu, V. Perevoztchikov, G. Van Buren, H. J. Crawford, Zubayer Ahammed, M. J. LeVine, P. Fachini, K. S.F.F. Guimaraes, T. G. Dedovich, T. W. Ludlam, J. M. Nelson, Frank Simon, T. Sakuma, William Axel Leight, S. C. Phatak, Sevil Salur, Y. Wang, Yan Li, W. Peryt, G. Wang, S. R. Klein, T. Tarnowsky, N. L. Subba, P. Seyboth, E. J. Garcia-Solis, D. L. Olson, R. Derradi de Souza, B. I. Abelev, A. A. Derevschikov, A. L. Trattner, M. J. M. Codrington, Jana Bielcikova, A. Shabetai, J. G. Cramer, P. Sorensen, X. H. Shi, Q. H. Xu, Z. J. Sun, Peter Graham Jones, L. Didenko, T. S. McShane, S. Baumgart, Matthew Walker, Y. J. Sun, S. Kabana, Y. P. Viyogi, T. J. Humanic, O. I. Mall, Qian Yue, R. Varma, Yu A. Matulenko, B. S. Page, D. P. Kikola, B. Stringfellow, B. V.K.S. Potukuchi, W. J. Llope, Jie Liu, Hanna Paulina Zbroszczyk, D. R. Beavis, and Anju Bhasin
Subjects: Particle physics, Photon, Quantum decoherence, Nuclear Theory, General Physics and Astronomy, 01 natural sciences, Nuclear physics, Pion, 0103 physical sciences, Colliders, 010306 general physics, Wave function, Nuclear Experiment, Physics, 010308 nuclear & particles physics, Heavy-Ion Collisions, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, Amplitude, Time Projection Chamber, High Energy Physics::Experiment, Impact parameter, Wave function collapse, Nucleon, ultra-peripheral relativistic heavy-ion collisions
Abstract: In ultra-peripheral relativistic heavy-ion collisions, a photon from the electromagnetic field of one nucleus can fluctuate to a quark-antiquark pair and scatter from the other nucleus, emerging as a $\rho^0$. The $\rho^0$ production occurs in two well-separated (median impact parameters of 20 and 40 fermi for the cases considered here) nuclei, so the system forms a 2-source interferometer. At low transverse momenta, the two amplitudes interfere destructively, suppressing $\rho^0$ production. Since the $\rho^0$ decay before the production amplitudes from the two sources can overlap, the two-pion system can only be described with an entangled non-local wave function, and is thus an example of the Einstein-Podolsky-Rosen paradox. We observe this suppression in 200 GeV per nucleon-pair gold-gold collisions. The interference is $87% \pm 5% {; ; \rm (stat.)}; ; \pm 8%$ (syst.) of the expected level. This translates into a limit on decoherence due to wave function collapse or other factors, of 23% at the 90% confidence level.
Published: 2009

166. Indications of Conical Emission of Charged Hadrons at the BNL Relativistic Heavy Ion Collider

Author: Jaroslav Bielcik, Russell Richard Betts, M. R. Dutta Mazumdar, D. G. Underwood, M. DePhillips, O. V. Rogachevskiy, Lijuan Ruan, Michal Sumbera, W. A. Love, M. Shao, J. S. Wang, P. Kurnadi, T. J. Hallman, J. Cheng, T. J. M. Symons, Zhenyu Zhang, M. R. Cosentino, Y. Bai, A. Ridiger, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, O. I. Mall, F. Benedosso, C-Q. Li, B. Grube, S. Heppelmann, J. L. Drachenberg, S. W. Wissink, Y. Zhang, N. Xu, P. Filip, T. G. Dedovich, David Lynn, Nikola Poljak, W. Guryn, H. Zhang, R. P. Scharenberg, Christina Markert, H. S. Matis, F. Liu, L. Kotchenda, T. Sakuma, S. C. Phatak, D. D. Koetke, J. E. Draper, R. D. Majka, S. Margetis, R. F. Clarke, J. Schambach, I. Sakrejda, G. D. Westfall, W. W. Jacobs, J. Lauret, A. Feng, Q. Wang, M. J. Russcher, Madan M. Aggarwal, Fuqiang Wang, O. G. Grebenyuk, R. Lednicky, L. Molnar, Jay Roberts, J. X. Zuo, F. Videbæk, J. Fedorisin, V. Fine, B. V.K.S. Potukuchi, Yu-Gang Ma, Petr Jákl, W. Christie, W. M. Zhang, Andrey Vasiliev, Yong Xu, S. LaPointe, A. Gordon, A. G. Knospe, E. P. Sichtermann, Raimond Snellings, Xiangming Sun, C. Nepali, Jing Zhou, Sergey Timoshenko, Jorn Henning Putschke, G. Wang, Jake Y. Chen, J. P. Coffin, A. V. Brandin, I. K. Yoo, Janet Elizabeth Seger, A. M. Hoffman, Anju Bhasin, S. Q. Zhang, A. Lebedev, M. M. de Moura, M. Botje, Frank Simon, H. Okada, W. J. Llope, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, B. Erazmus, S. E. Vigdor, Christian Claude Kuhn, I. Selyuzhenkov, A. Szanto de Toledo, J. Kapitan, J. Engelage, T. Ullrich, S. M. Dogra, Bernd Surrow, Xuan Wang, Neeraj Gupta, D. Cebra, S. Trentalange, M. Estienne, R. Zoulkarneev, H. Z. Huang, S. Vokal, A. Ogawa, B. E. Bonner, H. F. Chen, P. Seyboth, E. J. Garcia-Solis, T. Pawlak, Pawan Kumar Netrakanti, Thomas A. Trainor, W. R. Edwards, O. D. Tsai, L. Eun, C. A. Whitten, Feng Jin, A. Chikanian, M. S. Ganti, B. D. Anderson, D. R. Gangadharan, E. G. Judd, D. Tlusty, Mirko Planinic, K. Kajimoto, X. Lin, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, S. Chattopadhyay, F. Du, C. A. Gagliardi, Jie Liu, Premomoy Ghosh, J. M. Landgraf, V. N. Tram, R. Witt, S. Mioduszewski, V. Yu Khodyrev, Subrata Pal, V. Rykov, J. Kiryluk, J. H. Chen, L. V. Nogach, M. Elnimr, M. C. Cervantes, M. J. Ng, D. P. Mahapatra, X. L. Wang, R. S. Hollis, Bedangadas Mohanty, C. Zhong, S. U. Chung, N. K. Pruthi, Y. N. Gorbunov, Hanna Paulina Zbroszczyk, D. R. Beavis, M. Strikhanov, V. I. Kravtsov, B. K. Srivastava, I. M. Vasilevski, R. Derradi de Souza, B. I. Abelev, Marcelo Gameiro Munhoz, D. J. Prindle, S. J. Lindenbaum, M. van Leeuwen, X. Dong, Ki-Seok Choi, J. W. Harris, Y. P. Lu, V. Perevoztchikov, S. Bhardwaj, D. A. Morozov, M. Wada, J. Sandweiss, Jana Bielcikova, J. G. Cramer, M. Bystersky, Boris Hippolyte, M. A. Lisa, Anthony R. Timmins, J. C. Dunlop, Sergey Voloshin, Christine Nattrass, P. Yepes, D. Arkhipkin, A. Hamed, R. L. Ray, S. Bueltmann, M. Sharma, A. H. Tang, Zubayer Ahammed, D. Staszak, K. Kang, A. M. Vander Molen, T. Ljubicic, M. J. LeVine, M. Zawisza, H. M. Spinka, G. Eppley, H. Caines, Sudhir Raniwala, M. J. M. Codrington, A. Iordanova, N. G. Minaev, J. Baudot, W. Zhan, E. Hjort, Y. F. Wu, Sevil Salur, Y. Wang, P. Sorensen, X. H. Shi, M. Calderon De La Barca Sanchez, O. Catu, J. Pluta, T. P. Burton, Y. Fisyak, P. Djawotho, A. Kocoloski, Peter Graham Jones, T. S. McShane, A. Shabetai, M. Pachr, R. E. Tribble, S. Dash, J. H. Thomas, Q. H. Xu, V. Emelianov, A. K. Bhati, D. Keane, Z. J. Sun, Gerald W Hoffmann, M. L. Miller, Basanta Kumar Nandi, Nikolai Smirnov, J. Mitchell, L. G. Efimov, D. Kettler, Elena Bruna, S. Baumgart, G. S. Averichev, C-H. Lee, T. K. Nayak, L. Didenko, Guo-Liang Ma, B. Biritz, V. A. Okorokov, Y. Panebratsev, S. R. Klein, D. Grosnick, T. Tarnowsky, N. L. Subba, A. S. Hirsch, D. L. Olson, Y. J. Sun, J. C. Webb, V. Kouchpil, P. Kravtsov, Rolf K. Reed, C. Roy, A. A. Derevschikov, A. L. Trattner, J. Sowinski, S. Kabana, Y. P. Viyogi, T. J. Humanic, J. Joseph, G. M.S. Vasconcelos, C. De Silva, Qian Yue, P. Chaloupka, R. Varma, Y. Pandit, N. Schmitz, Yu A. Matulenko, B. S. Page, B. Stringfellow, E. Shahaliev, V. Ghazikhanian, D. Thein, M. Kopytine, M. Tokarev, Marek Bombara, J. L. Romero, T. D. S. Stanislaus, H. H. Wieman, L. K. Mangotra, R. Manweiler, Hongfang Liu, E. Finch, A. M. Poskanzer, A. Kechechyan, Andre Mischke, M. Krus, R. Cendejas, R. S. Longacre, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, G. Igo, J. Bouchet, J. Millane, Andrew Rose, Y. Zhao, G. Van Buren, S. S. Shi, T. W. Ludlam, J. M. Nelson, Yan Li, W. Peryt, R. N. Singaraju, A. P. Meschanin, J. Ulery, H. G. Ritter, O. Barannikova, R. Bellwied, L. Gaillard, M. S. Daugherity, L. C. Bland, L. Liu, M. C. Suarez, Morton Kaplan, X. Z. Cai, David Jonathan Hofman, A. Stadnik, Peter Martin Jacobs, J. Takahashi, S. B. Nurushev, B. Haag, Zebo Tang, Z. Chajecki, C. Perkins, T. Peitzmann, Z. Xu, G. Lin, Anik Gupta, M. J. Skoby, E. Elhalhuli, Jifa Tian, W. T. Waggoner, R. Fatemi, P. Fachini, K. Krueger, J. A. Vanfossen, K. S.F.F. Guimaraes, J. Callner, W. He, M. Cherney, Thomas Michael Cormier, Lokesh Kumar, M. Sarsour, Ermes Braidot, Adam Ryszard Kisiel, H. J. Crawford, M. Heinz, and Lee Stuart Barnby
Subjects: Nuclear Theory, Events, Hadron, FOS: Physical sciences, General Physics and Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Nuclear Theory (nucl-th), Nuclear physics, Plasma, 0103 physical sciences, Perpendicular, Nuclear Experiment (nucl-ex), Nuclear Experiment, 010306 general physics, plasma, Astrophysics::Galaxy Astrophysics, Physics, 010308 nuclear & particles physics, Conical surface, NATURAL SCIENCES. Physics, 3. Good health, PRIRODNE ZNANOSTI. Fizika, Deuterium, Transverse momentum, Particle, High Energy Physics::Experiment, Atomic physics, Relativistic Heavy Ion Collider, events, conical emission of correlated charged hadrons
Abstract: Three-particle azimuthal correlation measurements with a high transverse momentum trigger particle are reported for pp, d+Au, and Au+Au collisions at 200 GeV by the STAR experiment. Dijet structures are observed in pp, d+Au and peripheral Au+Au collisions. An additional structure is observed in central Au+Au data, signaling conical emission of correlated charged hadrons. The conical emission angle is found to be 1.37 +- 0.02(stat) +0.06-0.07(syst), independent of pt., 7 pages, 4 figures, 1 table
Published: 2009

167. System size dependence of associated yields in hadron-triggered jets

Author: F. Videbæk, B. Grube, A. Feng, G. Webb, O. I. Mall, Q. H. Xu, Jay Roberts, A. Ridiger, A. Chikanian, V. N. Tram, W. Guryn, D. Arkhipkin, A. Hamed, Y. Panebratsev, A. Iordanova, D. Grosnick, V. Kouchpil, D. Thein, R. N. Singaraju, L. Huo, A. P. Meschanin, Jorn Henning Putschke, A. V. Brandin, H. Okada, T. S. McShane, M. S. Ganti, M. Kopytine, M. Tokarev, S. E. Vigdor, C. Roy, B. V.K.S. Potukuchi, Yi Zhang, M. Calderon De La Barca Sanchez, O. Catu, Madan M. Aggarwal, W. Christie, P. R. Pujahari, T. P. Burton, P. Chaloupka, A. Shabetai, Chitrasen Jena, Raimond Snellings, Christian Claude Kuhn, X. L. Wang, J. Engelage, S. Heppelmann, Yu-Gang Ma, Rolf K. Reed, O. G. Grebenyuk, L. Kotchenda, W. M. Zhang, A. Kocoloski, J. C. Dunlop, Y. P. Lu, M. Cherney, Xiangming Sun, V. Perevoztchikov, Basanta Kumar Nandi, S. Zhang, B. Biritz, V. Ghazikhanian, S. Dash, R. Fatemi, Michael Joseph Betancourt, V. A. Okorokov, T. D. S. Stanislaus, J. Fedorisin, B. Haag, Xuan Zhang, M. van Leeuwen, X. Dong, Jie Liu, Andrey Vasiliev, A. G. Knospe, K. Krueger, A. Geromitsos, F. Du, D. D. Koetke, J. E. Draper, H. H. Wieman, J. Ulery, H. G. Ritter, J. A. Vanfossen, S. Baumgart, Fuqiang Wang, S. K. Pal, Hanna Paulina Zbroszczyk, Premomoy Ghosh, J. M. Landgraf, D. Tlusty, Mirko Planinic, L. K. Mangotra, P. Sorensen, X. H. Shi, O. Barannikova, R. Bellwied, D. R. Beavis, Janet Elizabeth Seger, Russell Richard Betts, L. V. Nogach, M. J. Ng, R. S. Longacre, I. Sakrejda, S. Bueltmann, Matthew Walker, A. M. Hoffman, D. G. Underwood, M. Strikhanov, Lijuan Ruan, E. P. Sichtermann, V. I. Kravtsov, Y. N. Gorbunov, Zebo Tang, R. Manweiler, Peter Graham Jones, Yong Xu, Zubayer Ahammed, M. J. LeVine, L. Gaillard, L. C. Bland, Sergey Voloshin, J. X. Zuo, V. Emelianov, D. Keane, W. He, Bedangadas Mohanty, J. Balewski, Marek Bombara, J. L. Romero, A. M. Poskanzer, Christine Nattrass, Ki-Seok Choi, M. Shao, Rashmi Raniwala, P. Kurnadi, Nikolai Smirnov, J. Mitchell, W. J. Llope, Claude Andre Pruneau, L. G. Efimov, S. M. Guertin, E. Finch, Thomas Michael Cormier, H. Z. Huang, S. Vokal, Debasish Das, Raghunath Sahoo, B. D. Anderson, J. Sandweiss, Y. J. Sun, Lokesh Kumar, F. Liu, Elena Bruna, T. J. Hallman, J. Cheng, Zhenyu Zhang, Z. Chajecki, Y. Yang, Alexandre Alarcon Do Passo Suaide, S. LaPointe, N. Li, S. Chattopadhyay, C-H. Lee, T. K. Nayak, A. Kechechyan, Andre Mischke, T. J. M. Symons, L. Didenko, L. Liu, C. L. Jones, B. E. Bonner, M. A.C. Lamont, M. R. Cosentino, A. Gordon, Z. J. Sun, O. D. Tsai, J. Baudot, M. C. Suarez, S. Kabana, T. Ullrich, D. P. Mahapatra, C-Q. Li, M. Elnimr, M. Krus, G. Igo, M. Wada, R. Cendejas, Guo-Liang Ma, M. Sharma, N. K. Pruthi, M. C. Cervantes, C. Perkins, R. S. Hollis, Y. P. Viyogi, R. Zoulkarneev, J. S. Wang, A. M. Vander Molen, R. D. Majka, K. Kang, F. Benedosso, J. Bouchet, J. Bielcikova, T. Peitzmann, R. P. Scharenberg, Christina Markert, E. Hjort, H. S. Matis, M. Bystersky, Y. F. Wu, William Axel Leight, G. Eppley, Z. Xu, G. Lin, S. Margetis, A. S. Hirsch, J. C. Webb, P. Kravtsov, R. F. Clarke, J. Schambach, S. R. Klein, T. Tarnowsky, N. L. Subba, Anju Bhasin, J. Kiryluk, W. L. Zhan, L. Eun, Anik Gupta, R. Witt, M. DePhillips, Andrew Rose, Y. Zhao, J. Pluta, R. P. Redwine, D. L. Olson, A. K. Bhati, Sevil Salur, Y. Wang, A. Lebedev, J. Sowinski, Jongmin Lee, R. L. Ray, W. W. Jacobs, Michal Sumbera, M. J. Skoby, Frank Jm Geurts, J. Lauret, E. Elhalhuli, J. G. Cramer, T. G. Dedovich, Ermes Braidot, M. Botje, D. Staszak, M. S. Daugherity, A. A. Derevschikov, A. L. Trattner, T. Sakuma, S. C. Phatak, M. Pachr, D. A. Morozov, R. E. Tribble, Jifa Tian, T. Ljubicic, X. Cai, Ross Milner, S. Mioduszewski, V. Yu Khodyrev, R. Lednicky, P. Djawotho, Adam Ryszard Kisiel, H. Caines, Sudhir Raniwala, J. W. Harris, V. Fine, Wei Xie, Gerald W Hoffmann, W. T. Waggoner, J. Joseph, H. J. Crawford, G. M.S. Vasconcelos, Y. Fisyak, M. Sarsour, Sergey Timoshenko, Frank Simon, S. W. Wissink, Jake Y. Chen, Y. Pandit, N. Schmitz, T. J. Humanic, Wolfgang Korsch, P. Fachini, K. S.F.F. Guimaraes, E. Shahaliev, G. Van Buren, Qian Yue, Anthony R. Timmins, B. K. Srivastava, I. M. Vasilevski, R. Varma, Yu A. Matulenko, B. S. Page, Nikola Poljak, G. Wang, A. Ogawa, H. F. Chen, P. Yepes, Thomas A. Trainor, W. R. Edwards, D. P. Kikola, P. Seyboth, E. J. Garcia-Solis, S. S. Shi, B. Stringfellow, A. H. Tang, N. G. Minaev, T. W. Ludlam, J. M. Nelson, R. Derradi de Souza, B. I. Abelev, Xiong Wang, Yan Li, M. J. M. Codrington, Jing-Han Chen, W. Peryt, Boris Hippolyte, M. Heinz, David Jonathan Hofman, A. Stadnik, Peter Martin Jacobs, J. Takahashi, Lee Stuart Barnby, N. Xu, P. Filip, S. B. Nurushev, Jaroslav Bielcik, G. D. Westfall, I. K. Yoo, Petr Jákl, M. R. Dutta Mazumdar, O. V. Rogachevskiy, D. R. Gangadharan, E. G. Judd, W. A. Love, C. A. Whitten, Feng Jin, R. Corliss, S. J. Lindenbaum, I. Selyuzhenkov, Bernd Surrow, Pawan Kumar Netrakanti, C. A. Gagliardi, Marcelo Gameiro Munhoz, D. J. Prindle, M. A. Lisa, J. H. Thomas, B. Erazmus, Neeraj Gupta, D. Cebra, S. Trentalange, M. Estienne, D. Kettler, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, C. Zhong, Q. Wang, M. J. Russcher, Jing Zhou, G. S. Averichev, K. Kajimoto, M. Zawisza, H. M. Spinka, L. C. De Silva, A. Szanto de Toledo, J. Kapitan, S. M. Dogra, T. Pawlak, J. L. Drachenberg, Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: heavy ion, scattering, fragmentation, Nuclear and High Energy Physics, di-hadron fragmentation function, Hadron, chemistry.chemical_element, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Nuclear physics, Fragmentation (mass spectrometry), 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Jet quenching, Nuclear Experiment, Size dependence, Physics, Quantitative Biology::Neurons and Cognition, 010308 nuclear & particles physics, Angular distance, Copper, parton energy loss, 25.75.-q, 25.75.Gz, jet quenching, Deuterium, chemistry, Transverse momentum, relativistic heavy-ion collisions
Abstract: We present results on the system size dependence of high transverse momentum di-hadron correlations at $\sqrt{s_{NN}}$ = 200 GeV as measured by STAR at RHIC. Measurements in d+Au, Cu+Cu and Au+Au collisions reveal similar jet-like correlation yields at small angular separation ($\Delta\phi\sim0$, $\Delta\eta\sim0$) for all systems and centralities. Previous measurements have shown that the away-side yield is suppressed in heavy-ion collisions. We present measurements of the away-side suppression as a function of transverse momentum and centrality in Cu+Cu and Au+Au collisions. The suppression is found to be similar in Cu+Cu and Au+Au collisions at a similar number of participants. The results are compared to theoretical calculations based on the parton quenching model and the modified fragmentation model. The observed differences between data and theory indicate that the correlated yields presented here will provide important constraints on medium density profile and energy loss model parameters., Comment: 12 pages, 5 figures
Published: 2009
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168. A Next-to-leading order QCD analysis of the spin structure function g(1)

Author: B. Adeva, T. Akdogan, E. Arik, B. Badelek, G. Bardin, G. Baum, P. Berglund, L. Betev, R. Birsa, N. de Botton, F. Bradamante, A. Bravar, A. Bressan, S. Bültmann, E. Burtin, C. Cavata, D. Crabb, J. Cranshaw, T. Çuhadai, S. Dalla Torre, R. van Dantzig, B. Derro, A. Deshpande, S. Dhawan, C. Dulya, S. Eichblatt, D. Fasching, F. Feinstein, C. Fernandez, S. Forthmann, B. Frois, A. Gallas, J. A. Garzon, H. Gilly, M. Giorgi, E. von Goeler, S. Goertz, G. Gracia, N. de Groot, M. Grosse Perdekamp, K. Haft, D. von Harrach, T. Hasegawa, P. Hautle, N. Hayashi, C. A. Heusch, N. Horikawa, V. W. Hughes, G. Igo, S. Ishimoto, T. Iwata, E. M. Kabuß, T. Kageya, A. Karev, H. J. Kessler, T. J. Ketel, J. Kiryluk, Yu. Kisselev, D. Krämer, V. Krivokhijine, W. Kröger, V. Kukhtin, K. Kurek, J. Kyynäräinen, M. Lamanna, U. Landgraf, J. M. Le Goff, F. Lehar, A. de Lesquen, J. Lichtenstadt, M. Litmaath, A. Magnon, G. K. Mallot, F. Marie, A. Martin, J. Martino, T. Matsuda, B. Mayes, J. S. McCarthy, K. Medved, W. Meyer, G. van Middelkoop, D. Miller, Y. Miyachi, K. Mori, J. Moromisato, J. Nassalski, L. Naumann, T. O. Niinikoski, J. E. J. Oberski, A. Ogawa, C. Ozben, H. Pereira, F. Perrot-Kunne, D. Peshekhonov, R. Piegaia, L. Pinsky, S. Platchkov, M. Plo, D. Pose, H. Postma, J. Pretz, R. Puntaferro, T. Pussieux, G. Rädel, A. Rijllart, G. Reicherz, J. Roberts, M. Rodriguez, E. Rondio, I. Sabo, J. Saborido, A. Sandacz, I. Savin, P. Schiavon, A. Schiller, E. P. Sichtermann, F. Simeoni, G. I. Smirnov, A. Staude, A. Steinmetz, U. Stiegler, H. Stuhrmann, M. Szleper, F. Tessarotto, D. Thers, W. Tlaczala, A. Tripet, G. Unel, M. Velasco, J. Vogt, R. Voss, C. Whitten, R. Windmolders, R. Willumeit, W. Wislicki, A. Witzmann, J. Ylöstalo, A. M. Zanetti, K. Zaremba, J. Zhao, (Astro)-Particles Physics, B., Adeva, T., Akdogan, E., Arik, B., Badelek, G., Bardin, Guenter, Baum, P., Berglund, L., Betev, Birsa, Renato, N., de Botton, Bradamante, Franco, A., Bravar, Bressan, Andrea, Stephen L., Bueltmann, E., Burtin, D., Crabb, J., Cranshaw, T., Cuhadar, DALLA TORRE, Silvia, R., van Dantzig, B., Derro, A., Deshpande, S., Dhawan, C., Dulya, S., Eichblatt, D., Fasching, F., Feinstein, C., Fernandez, S., Forthmann, B., Froi, A., Galla, J. A., Garzon, H., Gilly, Giorgi, Marcello, E., von Goeler, S., Goertz, G., Gracia, N., de Groot, M., Grosse Perdekamp, K., Haft, D., von Harrach, T., Hasegawa, P., Hautle, N., Hayashi, C. A., Heusch, N., Horikawa, V. W., Hughe, G., Igo, S., Ishimoto, T., Iwata, E. M., Kabu, T., Kageya, A., Karev, H. J., Kessler, T. J., Ketel, J., Kiryluk, Kiselev, Y. u., D., Kramer, V., Krivokhizhin, W., Kroger, V., Kukhtin, K., Kurek, J., Kyynarainen, M., Lamanna, U., Landgraf, J. M., Le Goff, F., Lehar, A., de Lesquen, J., Lichtenstadt, M., Litmaath, A., Magnon, G. K., Mallot, F., Marie, Martin, Anna, J., Martino, T., Matsuda, B., Maye, J. S., Mccarthy, K., Medved, W., Meyer, G., van Middelkoop, D., Miller, Y., Miyachi, K., Mori, J., Moromisato, J., Nassalski, L., Naumann, T. O., Niinikoski, J. E. J., Oberski, A., Ogawa, C., Ozben, H., Pereira, F., Kunne, D., Peshekhonov, R., Piegaia, Lawrence S., Pinsky, S., Platchkov, M., Plo, D., Pose, H., Postma, J., Pretz, R., Puntaferro, G., Radel, A., Rijllart, G., Reicherz, J., Robert, M., Rodriguez, E., Rondio, I., Sabo, J., Saborido, A., Sandacz, Igor A., Savin, Schiavon, Paolo, A., Schiller, E. P., Sichtermann, F., Simeoni, G. I., Smirnov, A., Staude, A., Steinmetz, U., Stiegler, H., Stuhrmann, M., Szleper, F., Tessarotto, D., Ther, W., Tlaczala, A., Tripet, G., Unel, M., Velasco, J., Vogt, R., Vo, C., Whitten, R., Windmolder, R., Willumeit, W., Wislicki, A., Witzmann, J., Ylostalo, A. M., Zanetti, K., Zaremba, and J., Zhao
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, DIS, Muon, SMC, High Energy Physics::Phenomenology, Parton, Function (mathematics), Spin structure, NLO Analysis, Factorization, High Energy Physics::Experiment, Sum rule in quantum mechanics, Nuclear Experiment, Particle Physics - Experiment, Spin-½
Abstract: We present a next-to-leading order QCD analysis of the presently available data on the spin structure function [Formula Presented] including the final data from the Spin Muon Collaboration. We present results for the first moments of the proton, deuteron, and neutron structure functions, and determine singlet and nonsinglet parton distributions in two factorization schemes. We also test the Bjorken sum rule and find agreement with the theoretical prediction at the level of 10%. © 1998 The American Physical Society.
Published: 1998

169. Measurement of proton and nitrogen polarization in ammonia and a test of equal spin temperature

Author: J. Polec, A. Schiller, J. Ylöstalo, Drew Parks, V. W. Hughes, M. Litmaath, G. Reicherz, M. Giorgi, A. Karev, J. M. Le Goff, Ulrich Landgraf, B. Derro, E. Arik, S. Ishimoto, Abhay Deshpande, S. Dalla Torre, G. Igo, J. Kiryluk, R. van Dantzig, H. Pereira Da Costa, David Miller, T. Hasegawa, J. A. Garzon, G. van Middelkoop, Franco Bradamante, E. Kok, Rudiger Voss, T. Matsuda, A. Rijllart, J. Vogt, H. Dutz, Bernardo Adeva, E. Rondio, H. Gilly, W. Meyer, S. Bültmann, P. Schiavon, Yu. Kisselev, D. Crabb, Heinrich B. Stuhrmann, M. Plückthun, A. de Lesquen, J. Lichtenstadt, Anna Zanetti, S. Platchkov, R. Puntaferro, P. Berglund, A. Magnon, A. Staude, D. Krämer, M. Plo, D. Fasching, R. Gehring, J. Cranshaw, M. Grosse Perdekamp, D. von Harrach, J. Harmsen, Matias Rodriguez, L. Betev, Kunikazu Mori, T. J. Ketel, C. Bradtke, N. Horikawa, K. Medved, J. S. McCarthy, Takahiro Iwata, J. E.J. Oberski, W. Tlaczala, Y. Miyachi, St. Goertz, E. P. Sichtermann, K. Kurek, J. Nassalski, A. Witzmann, I.A. Savin, M. Velasco, D. Peshekhonov, Günter Baum, U. Stiegler, C. Dulya, C. A. Whitten, B. W. Mayes, K. Zaremba, J. Kyynäräinen, Roland Windmolders, A. Tripet, A. Arvidson, S. Forthmann, Alan D. Martin, A. Gallas, G. K. Mallot, D. Pose, E. M. Kabuß, A. Ogawa, S. K. Dhawan, K. Haft, W. Wislicki, F. Tessarotto, F. Perrot-Kunne, W. Kröger, A. Steinmetz, H. Postma, N. de Botton, M. Lamanna, T. Kageya, B. Frois, Clemens A. Heusch, T. Çuhadar, F. Feinstein, J. Pretz, Lawrence Pinsky, G. Gracia, F. Lehar, F. Simeoni, G.I. Smirnov, A. Sandacz, G. Unel, N. De Groot, A. Bravar, G. Rädel, S. Eichblatt, B. Badelek, T. O. Niinikoski, C. Fernandez, N. Hayashi, Patrick Hautle, B., Adeva, E., Arik, A., Arvidson, B., Badelek, Guenter, Baum, P., Berglund, L., Betev, N., de Botton, Bradamante, Franco, C., Bradtke, A., Bravar, Stephen L., Bueltmann, D., Crabb, J., Cranshaw, T., Cuhadar, DALLA TORRE, Silvia, R., van Dantzig, B., Derro, A., Deshpande, S., Dhawan, C., Dulya, H., Dutz, S., Eichblatt, D., Fasching, F., Feinstein, C., Fernandez, S., Forthmann, B., Froi, A., Galla, J. A., Garzon, R., Gehring, H., Gilly, Giorgi, Marcello, S., Goertz, G., Gracia, N., de Groot, M., Grosse Perdekamp, K., Haft, J., Harmsen, D., von Harrach, T., Hasegawa, P., Hautle, N., Hayashi, C. A., Heusch, N., Horikawa, V. W., Hughe, G., Igo, S., Ishimoto, T., Iwata, E. M., Kabu, T., Kageya, A., Karev, T. J., Ketel, J., Kiryluk, Kiselev, Y. u., E., Kok, D., Kramer, W., Kroger, K., Kurek, J., Kyynarainen, M., Lamanna, U., Landgraf, J. M., Le Goff, F., Lehar, A., de Lesquen, J., Lichtenstadt, M., Litmaath, A., Magnon, G. K., Mallot, Martin, Anna, T., Matsuda, B., Maye, J. S., Mccarthy, K., Medved, W., Meyer, G., van Middelkoop, D., Miller, Y., Miyachi, K., Mori, J., Nassalski, T. O., Niinikoski, J. E. J., Oberski, A., Ogawa, D. P., Park, H., Pereira da Costa, F., Kunne, D., Peshekhonov, Lawrence S., Pinsky, S., Platchkov, M., Plo, M., Pluckthun, J., Polec, D., Pose, H., Postma, J., Pretz, R., Puntaferro, G., Radel, G., Reicherz, A., Rijllart, M., Rodriguez, E., Rondio, A., Sandacz, Igor A., Savin, Schiavon, Paolo, A., Schiller, E. P., Sichtermann, F., Simeoni, G. I., Smirnov, A., Staude, A., Steinmetz, U., Stiegler, H., Stuhrmann, F., Tessarotto, W., Tlaczala, A., Tripet, G., Unel, M., Velasco, J., Vogt, R., Vo, C., Whitten, R., Windmolder, W., Wislicki, A., Witzmann, J., Ylostalo, Zanetti, ANNA MARIA, K., Zaremba, and (Astro)-Particles Physics
Subjects: Nuclear and High Energy Physics, spin resonance, Proton, p polarized target, Nuclear Theory, chemistry.chemical_element, Ammonia, chemistry.chemical_compound, Paramagnetism, Irradiation, Detectors and Experimental Techniques, Nuclear Experiment, Instrumentation, Physics, Coupling constant, polarization, quadrupolar interactions, Polarization (waves), Nitrogen, nitrogen polarized target, dynamic nuclear, nuclear magnetic resonance, chemistry, Deuterium, Atomic physics
Abstract: The 1996 data taking of the SMC experiment used polarized protons to measure the spin-dependent structure function g(1) of the proton. Three liters of solid granular ammonia were irradiated at the Bonn electron linac in order to create the paramagnetic radicals which are needed for polarizing the protons. Proton polarizations of +/- (90 +/- 2.5)% were routinely reached. An analysis based on a theoretical line shape for spin-1. systems with large quadrupolar broadening was developed which allowed the nitrogen polarization in the ammonia to be determined with a 10% relative error. The measured quadrupolar coupling constant of N-14 agrees well with earlier extrapolated values. The polarization of the nitrogen nuclei was measured as a function of the proton polarization in order to provide a test of the equal spin temperature (EST) hypothesis. It was found to be closely valid under the dynamic nuclear polarization conditions with which the protons are polarized. Large deviations from EST could be induced by cross relaxing the proton and nitrogen spin systems at low fields. Nitrogen polarizations up to 40% were reached by these means. (C) 1998 Elsevier Science B.V. All rights reserved.
Published: 1998

170. Forward Neutral-Pion Transverse Single-Spin Asymmetries inp+pCollisions ats=200 GeV

Author: A. I. Pavlinov, B. E. Bonner, F. Liu, A. Ridiger, J. Engelage, M. L. Miller, Thorsten Sven Kollegger, O. D. Tsai, L. K. Mangotra, R. Manweiler, S. Heppelmann, M. C. Cervantes, Hong Liu, Kyungeon Choi, L. Kotchenda, Premomoy Ghosh, T. Dietel, Mirko Planinic, J. Tatarowicz, I. Selyuzhenkov, G. Van Buren, J. M. Landgraf, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, Sergey Voloshin, Christine Nattrass, A. M. Poskanzer, X. L. Wang, R. D. Majka, M. Strikhanov, Y. N. Gorbunov, G. Wang, P. Seyboth, E. J. Garcia-Solis, B. Haag, B. Grube, D. D. Koetke, S. L. Blyth, G. M.S. Vasconcelos, M. R. Dutta Mazumdar, J. E. Draper, S. Margetis, R. F. Clarke, J. Schambach, N. Schmitz, T. J. Humanic, E. Shahaliev, T. W. Ludlam, H. Zhang, O. V. Rogachevskiy, Zebo Tang, R. Derradi de Souza, B. I. Abelev, F. Videbæk, W. Guryn, A. Kechechyan, Andre Mischke, J. Sandweiss, J. Baudot, W. Zhan, M. Wada, A. M. Vander Molen, E. Hjort, Y. F. Wu, Gregory Rakness, I. A. Qattan, Z. Chajecki, J. M. Nelson, M. van Leeuwen, X. Dong, Bedangadas Mohanty, W. A. Love, J. P. Coffin, Sukalyan Chattopadhyay, O. G. Grebenyuk, B. Erazmus, W. Christie, V. Ghazikhanian, Sevil Salur, Y. Wang, Yan Li, W. Peryt, S. K. Pal, T. W. Henry, C-Q. Li, Marek Bombara, H. Z. Huang, J. L. Romero, M. S. Ganti, S. Vokal, J. Langdon, Jie Liu, T. P. Burton, D. Thein, E. Finch, R. P. Scharenberg, Christina Markert, M. J. M. Codrington, C. Perkins, W. M. Zhang, Bernd Surrow, E. P. Sichtermann, Andrey Vasiliev, H. S. Matis, M. Kopytine, J. Fu, T. Peitzmann, M. Tokarev, K. Kang, P. Djawotho, I. Sakrejda, W. W. Jacobs, D. Cebra, J. Lauret, J. Kiryluk, Pawan Kumar Netrakanti, Z. Xu, G. Lin, K. Kajimoto, M. Bystersky, J. Balewski, Rashmi Raniwala, D. R. Beavis, Claude Andre Pruneau, M. Calderon De La Barca Sanchez, A. Shabetai, R. Lednicky, M. J. Horner, S. Trentalange, M. Estienne, Y. P. Lu, J. H. Chen, C. A. Gagliardi, O. Catu, Janet Elizabeth Seger, N. van der Kolk, C. Miller, J. X. Zuo, T. D. S. Stanislaus, A. M. Hoffman, H. H. Wieman, V. Perevoztchikov, N. T. Porile, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, D. A. Morozov, Sergey Timoshenko, Jianhong Wu, Madan M. Aggarwal, Fuqiang Wang, R. Fatemi, E. W. Hughes, Morton Kaplan, A. Kocoloski, T. Ullrich, Q. H. Xu, Anju Bhasin, Z. J. Sun, R. Zoulkarneev, X. Z. Cai, Q. Li, E. Elhalhuli, V. Emelianov, A. K. Bhati, D. Keane, S. Dash, K. L. Kowalik, D. P. Mahapatra, H. Bichsel, K. Krueger, J. L. Drachenberg, G. Odyniec, Y. Zoulkarneeva, C. Zhong, Jifa Tian, S. LaPointe, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, Qian Yue, L. Eun, A. Lebedev, David Jonathan Hofman, R. S. Hollis, J. W. Harris, Xuan Wang, A. Ogawa, H. F. Chen, W. J. Llope, A. Gordon, Frank Simon, M. Potekhin, C. Nepali, Thomas A. Trainor, W. R. Edwards, C-H. Lee, T. K. Nayak, M. M. de Moura, A. Stadnik, W. T. Waggoner, R. L. Ray, Jorn Henning Putschke, Guo-Liang Ma, A. V. Brandin, Anthony R. Timmins, Peter Martin Jacobs, M. Botje, H. Okada, David Lynn, P. Yepes, Q. Wang, M. J. Russcher, D. Staszak, C. A. Whitten, Feng Jin, Y. Fisyak, S. Bueltmann, I. K. Yoo, Renaud Vernet, J. Takahashi, A. H. Tang, Y. Panebratsev, D. Grosnick, S. E. Vigdor, T. Ljubicic, N. Gupta, A. Feng, Christian Claude Kuhn, V. Kouchpil, S. B. Nurushev, H. Caines, Sudhir Raniwala, A. S. Hirsch, J. C. Webb, D. Relyea, S. Lange, P. Kravtsov, J. H. Thomas, S. J. Lindenbaum, J. S. Wang, J. Callner, J. G. Ma, Jing Zhou, Jay Roberts, P. Fachini, J. Sowinski, K. S.F.F. Guimaraes, S. U. Chung, D. Kettler, E. G. Judd, B. V.K.S. Potukuchi, Yu-Gang Ma, W. He, Marcelo Gameiro Munhoz, D. J. Prindle, G. S. Averichev, N. G. Minaev, M. Cherney, J. Speltz, N. Xu, Thomas Michael Cormier, M. DePhillips, P. Filip, M. A. Lisa, E. Braidot, M. Sarsour, G. D. Westfall, M. Zawisza, H. M. Spinka, Jana Bielcikova, Michal Sumbera, Petr Jákl, Y. Bai, P. Sorensen, X. H. Shi, Peter Graham Jones, S. W. Wissink, Y. Zhang, Nikola Poljak, L. Didenko, Adam Ryszard Kisiel, J. C. Dunlop, H. J. Crawford, S. R. Klein, T. Tarnowsky, N. L. Subba, D. L. Olson, Zubayer Ahammed, M. J. LeVine, A. A. Derevschikov, A. L. Trattner, C. Roy, H. Gos, P. Chaloupka, R. Witt, S. Mioduszewski, V. Yu Khodyrev, B. K. Srivastava, I. M. Vasilevski, A. Gupta, S. Bhardwaj, Boris Hippolyte, Basanta Kumar Nandi, S. Zhang, V. A. Okorokov, A. Chikanian, M. J. Skoby, V. N. Tram, D. Arkhipkin, A. Hamed, V. Fine, Jake Y. Chen, A. Iordanova, R. N. Singaraju, A. P. Meschanin, A. Kumar, F. Du, V. Rykov, L. V. Nogach, M. J. Ng, Manish Sharma, R. S. Longacre, V. I. Kravtsov, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, P. Kurnadi, G. Igo, J. Bouchet, Zhenyu Zhang, M. R. Cosentino, J. Millane, Andrew Rose, Y. Zhao, F. Benedosso, T. G. Dedovich, T. Sakuma, S. C. Phatak, M. S. Daugherity, L. C. Bland, J. Fedorisin, A. G. Knospe, L. Liu, M. C. Suarez, Raimond Snellings, J. Ulery, H. G. Ritter, F. Laue, A. Szanto de Toledo, J. Kapitan, O. Barannikova, R. Bellwied, L. Gaillard, S. M. Dogra, Xiangming Sun, T. Pawlak, X. Lin, Russell Richard Betts, D. G. Underwood, Lijuan Ruan, B. D. Anderson, M. Shao, T. J. Hallman, J. Cheng, T. J. M. Symons, N. K. Pruthi, R. Varma, G. Eppley, Yu A. Matulenko, B. Stringfellow, J. Pluta, M. Pachr, R. E. Tribble, Gerald W Hoffmann, J. G. Cramer, N. Zachariou, T. S. McShane, S. Baumgart, S. Kabana, and Y. P. Viyogi
Subjects: Quantum chromodynamics, Physics, Particle physics, Proton, Meson, 010308 nuclear & particles physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Perturbative QCD, 7. Clean energy, 01 natural sciences, Gluon, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: We report precision measurements of the Feynman x (x(F)) dependence, and first measurements of the transverse momentum (p(T)) dependence, of transverse single-spin asymmetries for the production of pi(0) mesons from polarized proton collisions at s=200 GeV. The x(F) dependence of the results is in fair agreement with perturbative QCD model calculations that identify orbital motion of quarks and gluons within the proton as the origin of the spin effects. Results for the p(T) dependence at fixed x(F) are not consistent with these same perturbative QCD-based calculations.
Published: 2008

171. Hadronic resonance production ind+Aucollisions atsNN=200GeV measured at the BNL Relativistic Heavy Ion Collider

Author: L. K. Mangotra, M. S. Ganti, Bruna, R. Manweiler, Hongfang Liu, G. Van Buren, Y. P. Lu, A. M. Poskanzer, J. L. Drachenberg, M. Zawisza, H. M. Spinka, V. Perevoztchikov, C. A. Whitten, Feng Jin, C. Roy, T. W. Ludlam, J. M. Nelson, R. Fatemi, Yan Li, N. Gupta, A. Feng, W. Peryt, K. Krueger, A. Kechechyan, Andre Mischke, J. A. Vanfossen, Jay Roberts, S. J. Lindenbaum, W. J. Llope, B. Erazmus, M. Calderon De La Barca Sanchez, O. Catu, V. Ghazikhanian, Raimond Snellings, Xiangming Sun, F. Liu, Y. Panebratsev, C. De Silva, M. S. Daugherity, J. H. Thomas, M. DePhillips, D. Grosnick, B. V.K.S. Potukuchi, V. Kouchpil, S. Chattopdhyay, Jie Liu, M. Krus, R. Cendejas, D. Thein, G. Wang, J. Callner, Kyungeon Choi, A. Szanto Detoledo, Hanna Paulina Zbroszczyk, D. R. Beavis, A. Kocoloski, Michal Sumbera, T. P. Burton, L. Kotchenda, S. Hepplemann, W. He, P. Chaloupka, M. L. Miller, M. Cherney, Thomas Michael Cormier, B. Haag, D. Cebra, S. Trentalange, Zebo Tang, S. Dash, Marek Bombara, J. G. Cramer, J. L. Romero, M. Estienne, B. Grube, Y. Bai, S. W. Wissink, Y. Zhang, M. Kopytine, M. Tokarev, R. D. Majka, Lokesh Kumar, M. Sarsour, P. Seyboth, E. J. Garcia-Solis, C-Q. Li, Guo-Liang Ma, Morton Kaplan, X. Z. Cai, Nikola Poljak, E. P. Sichtermann, H. Bichsel, J. Ulery, J. Y. Chen, G. Odyniec, Y. Zoulkarneeva, S. Margetis, R. F. Clarke, J. Schambach, A. S. Hirsch, M. Sharma, Anju Bhasin, S. M. Guertin, Jana Bielcikova, Alexandre Alarcon Do Passo Suaide, David Lynn, R. P. Scharenberg, Christina Markert, H. G. Ritter, R. S. Longacre, R. Witt, J. C. Webb, R. Derradi de Souza, B. I. Abelev, O. Barannikova, R. Bellwied, P. Kravtsov, B. D. Anderson, Q. Wang, S. Mioduszewski, E. Finch, Bedangadas Mohanty, Z. Chajecki, W. Guryn, T. D. S. Stanislaus, J. Balewski, R. Reed, M. J. Russcher, B. E. Bonner, N. G. Minaev, D. P. Mahapatra, P. Djawotho, Yuanfang Wu, David Jonathan Hofman, L. Gaillard, V. Yu Khodyrev, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, H. H. Wieman, O. D. Tsai, R. S. Hollis, P. Sorensen, H. S. Matis, X. H. Shi, Rashmi Raniwala, N. K. Pruthi, Peter Graham Jones, J. Sowinski, O. G. Grebenyuk, M. I. Mall, M. Elnimr, M. C. Cervantes, A. Stadnik, T. S. McShane, B. K. Srivastava, I. M. Vasilevski, L. C. Bland, W. W. Jacobs, Basanta Kumar Nandi, G. Igo, J. H. Chen, M. J. M. Codrington, Claude Andre Pruneau, M. Bystersky, J. Fedorisin, A. M. Vander Molen, N. Xu, P. Filip, Peter Martin Jacobs, J. Bouchet, Jing Zhou, L. Didenko, J. Lauret, G. Eppley, C. Perkins, S. U. Chung, S. Q. Zhang, A. Lebedev, A. G. Knospe, Tlusty, S. Bhardwaj, B. Biritz, Boris Hippolyte, G. D. Westfall, Adam Ryszard Kisiel, J. Millane, J. W. Harris, Marcelo Gameiro Munhoz, D. J. Prindle, T. Peitzmann, V. A. Okorokov, S. R. Klein, T. Tarnowsky, N. L. Subba, D. R. Gangaharan, L. Liu, J. Takahashi, S. Baumgart, I. K. Yoo, Z. Xu, G. Lin, J. C. Dunlop, H. J. Crawford, D. L. Olson, J. Pluta, M. C. Suarez, R. Lednicky, Andrew Rose, Y. Zhao, S. B. Nurushev, Petr Jákl, M. A. Lisa, Anik Gupta, Yinina Ma, Zubayer Ahammed, A. A. Derevschikov, A. L. Trattner, Anthony R. Timmins, Y. Fisyak, E. Braidot, T. Ullrich, P. Yepes, A. Chikanian, M. J. Skoby, M. J. LeVine, V. N. Tram, Sevil Salur, Y. Wang, E. G. Judd, J. Kapitan, M. Botje, S. Bueltmann, A. H. Tang, E. Elhalhuli, S. M. Dogra, Sergey Voloshin, Christine Nattrass, D. K. Mishra, R. N. Singaraju, Jifa Tian, M. Pachr, P. Fachini, A. P. Meschanin, Sergey Timoshenko, R. E. Tribble, Y. J. Sun, T. Pawlak, K. S.F.F. Guimaraes, D. Arkhipkin, A. Hamed, W. T. Waggoner, Gerald W Hoffmann, A. Shabetai, R. Zoulkarneev, X. Lin, A. Iordanova, S. Kabana, Y. P. Viyogi, Q. H. Xu, Z. J. Sun, V. Emelianov, A. K. Bhati, J. Baudot, W. Zhan, M. Wada, Russell Richard Betts, J. Joseph, T. J. Humanic, D. Keane, L. Eun, Nikolai Smirnov, G. M.S. Vasconcelos, D. G. Underwood, J. Mitchell, L. G. Efimov, Lijuan Ruan, Y. Pandit, Qian Yue, N. Schmitz, C-H. Lee, T. K. Nayak, E. Shahaliev, R. L. Ray, M. Shao, R. Varma, D. Staszak, Yu A. Matulenko, B. S. Page, T. J. Hallman, J. Cheng, T. J. M. Symons, Xuan Wang, A. Ogawa, B. Stringfellow, H. F. Chen, T. Ljubicic, Thomas A. Trainor, W. R. Edwards, W. Christie, H. Caines, Sudhir Raniwala, Mirko Planinic, W. M. Zhang, Y. N. Gorbunov, Andrey Vasiliev, X. L. Wang, K. Kajimoto, C. Zhong, Janet Elizabeth Seger, A. M. Hoffman, M. van Leeuwen, X. Dong, S. K. Pal, A. Ridiger, D. D. Koetke, J. E. Draper, D. Kettler, G. S. Averichev, J. P. Coffin, H. Z. Huang, S. Vokal, K. Kang, J. Kiryluk, D. A. Morozov, J. Engelage, Premomoy Ghosh, J. M. Landgraf, M. Strikhanov, J. Sandweiss, C. Nepali, Jorn Henning Putschke, A. V. Brandin, H. Okada, S. E. Vigdor, Christian Claude Kuhn, H. Zhang, I. Sakrejda, J. X. Zuo, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, S. LaPointe, M. R. Dutta Mazumdar, O. V. Rogachevskiy, W. A. Love, A. Gordon, I. Selyuzhenkov, Bernd Surrow, J. S. Wang, Pawan Kumar Netrakanti, C. A. Gagliardi, Madan M. Aggarwal, Fuqiang Wang, Yong Xu, Frank Simon, S. S. Shi, F. Du, V. Rykov, L. V. Nogach, M. J. Ng, V. I. Kravtsov, V. Fine, P. Kurnadi, Zhenyu Zhang, M. R. Cosentino, F. Benedosso, T. G. Dedovich, T. Sakuma, S. C. Phatak, and F. Videbæk
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Star (game theory), Hadron, Resonance, Lambda, 01 natural sciences, 7. Clean energy, Spectral line, Nuclear physics, 0103 physical sciences, Transverse mass, Production (computer science), Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We present the first measurements of the {rho}(770){sup 0}, K*(892), {Delta}(1232){sup ++}, {Sigma}(1385), and {Lambda}(1520) resonances in d+Au collisions at {radical}s{sub NN} = 200 GeV, reconstructed via their hadronic decay channels using the STAR detector at RHIC. The masses and widths of these resonances are studied as a function of transverse momentum (p{sub T}). We observe that the resonance spectra follow a generalized scaling law with the transverse mass (m{sub T}). The of resonances in minimum bias collisions is compared to the of {pi}, K, and {bar p}. The {rho}{sup 0}/{pi}{sup -}, K*/K{sup -}, {Delta}{sup ++}/p, {Sigma}(1385)/{Lambda}, and {Lambda}(1520)/{Lambda} ratios in d + Au collisions are compared to the measurements in minimum bias p + p interactions, where we observe that both measurements are comparable. The nuclear modification factors (R{sub dAu}) of the {rho}{sup 0}, K*, and {Sigma}* scale with the number of binary collisions (N{sub bin}) for p{sub T} > 1.2 GeV/c.
Published: 2008

172. Longitudinal Double-Spin Asymmetry for Inclusive Jet Production inp→+p→Collisions ats=200 GeV

Author: A. Ridiger, Thorsten Sven Kollegger, Y. Panebratsev, R. S. Longacre, D. Grosnick, V. Kouchpil, M. Wada, C. A. Whitten, S. Heppelmann, Debasish Das, Raghunath Sahoo, L. Martin, M. A.C. Lamont, A. Bellingeri-Laurikainen, G. Igo, S. Lange, D. D. Koetke, Jana Bielcikova, J. E. Draper, S. J. Lindenbaum, J. Bouchet, H. Bichsel, G. Odyniec, J. Millane, Y. Zoulkarneeva, M. Potekhin, Andrew Rose, Y. Zhao, E. M. Kislov, J. G. Cramer, M. Heinz, Lee Stuart Barnby, J. P. Coffin, B. Grube, L. Kotchenda, David Lynn, M. J. Russcher, Jaroslav Bielcik, C. Roy, M. R. Dutta Mazumdar, O. V. Rogachevskiy, N. G. Minaev, V. Emelianov, A. K. Bhati, D. Keane, O. G. Grebenyuk, V. B. Dunin, N. Xu, P. Filip, Nikolai Smirnov, Jie Liu, R. Stock, G. D. Westfall, J. Mitchell, L. G. Efimov, R. N. Singaraju, A. P. Meschanin, J. Fedorisin, Petr Jákl, W. A. Love, H. Z. Huang, S. Vokal, J. G. Ma, Jing Zhou, C-H. Lee, T. K. Nayak, R. Fatemi, A. G. Knospe, Raimond Snellings, B. E. Bonner, Manish Sharma, G. Wang, L. K. Mangotra, Vitaly Okorokov, O. D. Tsai, Russell Richard Betts, K. Krueger, Bernd Surrow, D. G. Underwood, S. M. Guertin, J. Kiryluk, Bedangadas Mohanty, M. C. Cervantes, Lijuan Ruan, T. J. Humanic, Alexandre Alarcon Do Passo Suaide, Sergey Timoshenko, R. Manweiler, B. Erazmus, W. J. Llope, Sergey Voloshin, Christine Nattrass, D. A. Morozov, P. Seyboth, Pawan Kumar Netrakanti, N. T. Porile, E. J. Garcia-Solis, Xiangming Sun, Qian Yue, M. Shao, A. M. Poskanzer, D. P. Mahapatra, R. S. Hollis, H. Gos, T. J. Hallman, C. A. Gagliardi, J. Cheng, D. Cebra, N. van der Kolk, P. Chaloupka, J. Callner, R. Varma, S. Trentalange, T. J. M. Symons, M. Estienne, David Jonathan Hofman, S. R. Klein, T. Tarnowsky, N. L. Subba, Yu A. Matulenko, K. Kang, W. Christie, A. Kechechyan, Andre Mischke, Sevil Salur, Y. Wang, W. He, D. L. Olson, Madan M. Aggarwal, A. I. Kulikov, B. I. Abelev, J. Baudot, W. Zhan, Fuqiang Wang, J. H. Chen, B. Stringfellow, S. U. Chung, J. Takahashi, T. S. McShane, M. Bystersky, J. Speltz, Marcelo Gameiro Munhoz, D. J. Prindle, M. Cherney, W. M. Zhang, A. Stadnik, Thomas Michael Cormier, Andrey Vasiliev, M. J. Horner, T. P. Burton, Wen-Qing Shen, A. A. Derevschikov, Peter Martin Jacobs, F. Laue, A. Szanto de Toledo, M. DePhillips, Sukalyan Chattopadhyay, V. I. Yurevich, J. Kapitan, S. Baumgart, R. Witt, S. M. Dogra, Michal Sumbera, Yuanfang Wu, P. Djawotho, Y. Lu, A. Ogawa, H. F. Chen, T. W. Henry, Frank Simon, S. Mioduszewski, T. Pawlak, Janet Elizabeth Seger, A. M. Hoffman, Thomas A. Trainor, W. R. Edwards, S. B. Nurushev, A. N. Zubarev, M. Kopytine, J. Fu, V. Yu Khodyrev, M. S. Ganti, M. Tokarev, Y. Bai, M. A. Lisa, X. Lin, B. D. Anderson, M. Sarsour, S. W. Wissink, Basanta Kumar Nandi, S. Kabana, Y. P. Viyogi, M. J. M. Codrington, A. I. Pavlinov, T. Dietel, I. Selyuzhenkov, J. W. Harris, P. Fachini, B. V.K.S. Potukuchi, F. Liu, B. K. Srivastava, Y. Zhang, I. M. Vasilevski, Mirko Planinic, G. Van Buren, K. S.F.F. Guimaraes, Nikola Poljak, N. K. Pruthi, T. D. S. Stanislaus, N. Schmitz, Yinina Ma, R. D. Majka, T. W. Ludlam, S. Bhardwaj, Boris Hippolyte, J. M. Nelson, J. Y. Chen, V. V. Belaga, Anthony R. Timmins, Y. N. Gorbunov, H. H. Wieman, J. Engelage, H. Liu, A. Chikanian, M. J. Skoby, J. C. Dunlop, V. N. Tram, S. Margetis, R. F. Clarke, J. Schambach, P. Yepes, Yan Li, P. Sorensen, Anju Bhasin, G. Eppley, Zubayer Ahammed, W. Peryt, Peter Graham Jones, Renaud Vernet, A. H. Tang, C-Q. Li, E. Shahaliev, M. J. LeVine, A. Lebedev, M. M. de Moura, M. Botje, J. Pluta, I. K. Yoo, V. Perevoztchikov, E. W. Hughes, L. Didenko, Premomoy Ghosh, K. L. Kowalik, D. Arkhipkin, A. Hamed, R. P. Scharenberg, Christina Markert, Morton Kaplan, X. Z. Cai, H. S. Matis, A. Iordanova, Y. Fisyak, A. M. Vander Molen, E. G. Judd, J. M. Landgraf, J. L. Drachenberg, M. Calderon De La Barca Sanchez, E. Hjort, M. Pachr, R. E. Tribble, N. Gupta, A. Feng, O. Catu, Gerald W Hoffmann, M. Strikhanov, W. W. Jacobs, Jay Roberts, A. Kocoloski, Q. Li, S. Lehocka, M. L. Miller, J. Lauret, S. Dash, R. Lednicky, S. L. Blyth, V. Ghazikhanian, A. Shabetai, J. Sandweiss, Guo-Liang Ma, Q. H. Xu, Z. J. Sun, A. S. Hirsch, J. C. Webb, P. Kravtsov, Adam Ryszard Kisiel, H. J. Crawford, J. Sowinski, B. Haag, I. A. Qattan, Z. Chajecki, Marek Bombara, J. L. Romero, C. Perkins, P. S. Sazhin, T. Peitzmann, E. Finch, Z. Xu, G. Lin, Anik Gupta, Jianhong Wu, E. Elhalhuli, W. T. Waggoner, V. Fine, X. L. Wang, C. Zhong, M. van Leeuwen, X. Dong, S. K. Pal, P. Kurnadi, R. L. Ray, E. Potrebenikova, Zhenyu Zhang, M. R. Cosentino, D. Staszak, M. S. Daugherity, T. Ljubicic, F. Benedosso, H. Caines, Sudhir Raniwala, L. C. Bland, T. G. Dedovich, S. S. Shimanskiy, D. Relyea, T. Sakuma, E. P. Sichtermann, S. C. Phatak, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, T. Ullrich, R. Zoulkarneev, A. A. Kuznetsov, L. Liu, A. Kumar, F. Du, M. C. Suarez, L. V. Nogach, V. I. Kravtsov, M. Zawisza, H. M. Spinka, J. Ulery, J. H. Thomas, H. G. Ritter, D. Kettler, G. S. Averichev, O. Barannikova, R. Bellwied, H. Zhang, L. Gaillard, I. Sakrejda, J. X. Zuo, S. LaPointe, J. S. Wang, C. Nepali, Jorn Henning Putschke, A. V. Brandin, S. E. Vigdor, and Christian Claude Kuhn
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Scattering, media_common.quotation_subject, Nuclear Theory, General Physics and Astronomy, Jet (particle physics), Deep inelastic scattering, 01 natural sciences, Asymmetry, Gluon, Nuclear physics, Transverse plane, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon, media_common, Spin-½
Abstract: We report a new STAR measurement of the longitudinal double-spin asymmetry A(LL) for inclusive jet production at midrapidity in polarized p+p collisions at a center-of-mass energy of root s = 200 GeV. The data, which cover jet transverse momenta 5 < p(T) < 30 GeV/c, are substantially more precise than previous measurements. They provide significant new constraints on the gluon spin contribution to the nucleon spin through the comparison to predictions derived from one global fit to polarized deep-inelastic scattering measurements. They provide significant new constraints on the gluon spin contribution to the nucleon spin through the comparison to predictions derived from one global fit to polarized deep-inelastic scattering measurements.
Published: 2008

173. Spin alignment measurements of theK*0(892)andϕ(1020)vector mesons in heavy ion collisions atsNN=200GeV

Author: Zhenyu Zhang, M. R. Cosentino, F. Benedosso, V. Fine, Jake Y. Chen, T. G. Dedovich, T. Sakuma, S. C. Phatak, F. Du, V. Rykov, L. V. Nogach, M. J. Ng, V. I. Kravtsov, H. Zhang, I. Sakrejda, J. X. Zuo, David Jonathan Hofman, Kyungeon Choi, L. Kotchenda, A. M. Vander Molen, A. Stadnik, R. S. Longacre, S. LaPointe, A. Gordon, Peter Martin Jacobs, G. Eppley, Y. F. Wu, Xu Cai, Gang Wang, J. Takahashi, Debasish Das, Raghunath Sahoo, J. Pluta, S. B. Nurushev, M. A.C. Lamont, G. Igo, D. Thein, T. P. Burton, J. Bouchet, J. Millane, P. Djawotho, M. Pachr, R. E. Tribble, Andrew Rose, Y. Zhao, Gerald W Hoffmann, Morton Kaplan, S. M. Guertin, M. Sharma, M. Kopytine, Alexandre Alarcon Do Passo Suaide, J. S. Wang, R. N. Singaraju, A. P. Meschanin, Raimond Snellings, N. G. Minaev, D. P. Mahapatra, G. Van Buren, Mikhail Tokarev, Xiangming Sun, R. S. Hollis, S. S. Shi, T. W. Ludlam, J. G. Cramer, J. M. Nelson, C. Nepali, Yinina Ma, T. D. S. Stanislaus, Jorn Henning Putschke, B. D. Anderson, A. V. Brandin, Yan Li, H. Okada, W. Peryt, V. Ghazikhanian, H. H. Wieman, W. Christie, N. K. Pruthi, S. E. Vigdor, C. A. Whitten, Marek Bombara, Christian Claude Kuhn, L. K. Mangotra, W. M. Zhang, Andrey Vasiliev, Adam Ryszard Kisiel, J. L. Romero, H. J. Crawford, R. Manweiler, Xiaoyu Wang, F. Laue, Shaobo Zhang, A. Chikanian, M. J. Skoby, S. Lange, E. Finch, R. Fatemi, Jana Bielcikova, Christine Nattrass, V. N. Tram, A. Szanto de Toledo, A. M. Poskanzer, J. L. Drachenberg, K. Krueger, S. J. Lindenbaum, Q. H. Xu, H. Z. Huang, S. Vokal, K. Kajimoto, J. Kapitan, S. M. Dogra, N. Xu, P. Filip, Z. J. Sun, Janet Elizabeth Seger, Thomas Peitzmann, P. Sorensen, G. D. Westfall, D. Arkhipkin, A. Hamed, Peter Graham Jones, A. M. Hoffman, A. Kechechyan, Andre Mischke, G. M.S. Vasconcelos, J. Callner, W. He, T. Pawlak, Petr Jákl, N. Gupta, A. Feng, T. J. Humanic, M. Cherney, Thomas Michael Cormier, Lokesh Kumar, J. W. Harris, R. Cendejas, N. Schmitz, Akash Kumar, E. Shahaliev, A. Iordanova, M. Sarsour, X. Lin, J. Kiryluk, Pijush Ghosh, L. Didenko, X-H. Shi, N. T. Porile, Jay Roberts, P. Seyboth, E. J. Garcia-Solis, C. Roy, Anthony R. Timmins, Qian Yue, D. A. Morozov, B. Grube, J. Baudot, M. Wada, F. Liu, P. Yepes, A. Ridiger, S. Bueltmann, A. H. Tang, Thorsten Sven Kollegger, R. Varma, Yu A. Matulenko, S. Heppelmann, W. Guryn, R. Derradi de Souza, B. I. Abelev, B. Haag, P. Chaloupka, D. D. Koetke, J. E. Draper, B. Stringfellow, S. R. Klein, O. G. Grebenyuk, T. Tarnowsky, N. L. Subba, D. L. Olson, Zebo Tang, J. Fedorisin, Sergei A. Voloshin, J. P. Coffin, Hong Liu, A. G. Knospe, T. S. McShane, Russell Richard Betts, I. A. Qattan, Z. Chajecki, M. J. M. Codrington, D. G. Underwood, Lijuan Ruan, A. A. Derevschikov, S. Baumgart, A. L. Trattner, R. D. Majka, C. Perkins, J. C. Dunlop, Z. Xu, G. Lin, M. Shao, S. Margetis, R. F. Clarke, J. Schambach, Anju Bhasin, T. J. Hallman, J. Cheng, T. J. M. Symons, Sergey Timoshenko, Jianhong Wu, Basanta Kumar Nandi, S. Kabana, J. Tian, E. Elhalhuli, I. Selyuzhenkov, Y. P. Viyogi, Zubayer Ahammed, M. J. LeVine, A. Lebedev, Vitaly Okorokov, M. M. de Moura, B. Biritz, M. Botje, Y. Fisyak, Bernd Surrow, W. T. Waggoner, P. Fachini, M. Calderon De La Barca Sanchez, K. S.F.F. Guimaraes, Pawan Kumar Netrakanti, O. Catu, C. A. Gagliardi, N. van der Kolk, A. Ogawa, A. Kocoloski, Madan M. Aggarwal, H. F. Chen, S. Dash, Thomas A. Trainor, W. R. Edwards, Fuqiang Wang, C-Q. Li, R. Witt, R. P. Scharenberg, Christina Markert, S. Mioduszewski, W. L. Zhan, H. S. Matis, V. Yu Khodyrev, Frank Simon, Subrata Pal, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, B. K. Srivastava, I. M. Vasilevski, W. W. Jacobs, J. Lauret, M. R. Dutta Mazumdar, A. Gupta, S. Bhardwaj, Boris Hippolyte, O. V. Rogachevskiy, R. Lednicky, W. A. Love, Y. Panebratsev, D. Grosnick, V. Kouchpil, T. Dietel, B. E. Bonner, Mirko Planinic, O. D. Tsai, M. Elnimr, M. C. Cervantes, Sevil Salur, Y. Wang, V. Emelianov, A. K. Bhati, D. Keane, Y. N. Gorbunov, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, C-H. Lee, T. K. Nayak, J. Ulery, H. G. Ritter, Bedangadas Mohanty, O. Barannikova, R. Bellwied, L. Gaillard, M. S. Daugherity, L. C. Bland, L. Liu, M. C. Suarez, J. H. Chen, M. Bystersky, F. Videbæk, Sukalyan Chattopadhyay, M. DePhillips, Michal Sumbera, M. S. Ganti, Y. Bai, S. W. Wissink, Y. Zhang, Nikola Poljak, V. Perevoztchikov, E. W. Hughes, I. K. Yoo, Alexandre Shabetai, M. L. Miller, Y. Lu, D. R. Gangadharan, E. G. Judd, Guo-Liang Ma, A. S. Hirsch, J. C. Webb, P. Kravtsov, J. Sowinski, J. Engelage, J. M. Landgraf, M. Strikhanov, J. Sandweiss, K. Kang, B. V.K.S. Potukuchi, Jie Liu, Hanna Paulina Zbroszczyk, D. R. Beavis, X. L. Wang, C. Zhong, M. van Leeuwen, X. Dong, F. Jin, W. J. Llope, R. L. Ray, D. Staszak, J. H. Thomas, T. Ljubicic, H. Caines, Sudhir Raniwala, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, D. Kettler, T. Ullrich, R. Zoulkarneev, L. Eun, G. S. Averichev, M. Zawisza, H. M. Spinka, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, M. Potekhin, David Lynn, Q. Wang, M. J. Russcher, J. G. Ma, Jing Zhou, B. Erazmus, D. Cebra, S. Trentalange, M. Estienne, S. U. Chung, Marcelo Gameiro Munhoz, D. J. Prindle, M. A. Lisa, E. Braidot, and P. Kurnadi
Subjects: Physics, Density matrix, Nuclear and High Energy Physics, Angular momentum, Meson, Magnetic moment, Spins, 010308 nuclear & particles physics, Polarization (waves), 01 natural sciences, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Spectroscopy
Abstract: We present the first spin alignment measurements for the K*{sup 0}(892) and (1020) vector mesons produced at midrapidity with transverse momenta up to 5 GeV/c at {radical}s{sub NN} = 200 GeV at RHIC. The diagonal spin-density matrix elements with respect to the reaction plane in Au+Au collisions are {rho}{sub 00} = 0.32 {+-} 0.04 (stat) {+-} 0.09 (syst) for the K*{sup 0} (0.8 < p{sub T} < 5.0 GeV/c) and {rho}{sub 00} = 0.34 {+-} 0.02 (stat) {+-} 0.03 (syst) for the {phi} (0.4 < p{sub T} < 5.0 GeV/c) and are constant with transverse momentum and collision centrality. The data are consistent with the unpolarized expectation of 1/3 and thus no evidence is found for the transfer of the orbital angular momentum of the colliding system to the vector-meson spins. Spin alignments for K*{sup 0} and {phi} in Au+Au collisions were also measured with respect to the particle's production plane. The {phi} result, {rho}{sub 00} = 0.41 {+-} 0.02 (stat) {+-} 0.04 (syst), is consistent with that in p+p collisions, {rho}{sub 00} = 0.39 {+-} 0.03 (stat) {+-} 0.06 (syst), also measured in this work. The measurements thus constrain the possible size of polarization phenomena in the production dynamicsmore » of vector mesons.« less
Published: 2008

174. Centrality dependence of charged hadron and strange hadron elliptic flow fromsNN=200GeV Au+Au collisions

Author: R. Fatemi, V. Ghazikhanian, K. Krueger, R. L. Ray, J. S. Wang, J. Callner, Z. Xu, G. Lin, Sergey Voloshin, Christine Nattrass, D. Staszak, Sergey Timoshenko, Marek Bombara, W. He, Jun Takahashi, Anik Gupta, M. Cherney, Thomas Michael Cormier, J. L. Romero, C. W. Whitten, T. Ljubicic, Jana Bielcikova, Jianhong Wu, H. Caines, Sudhir Raniwala, Lokesh Kumar, M. Sarsour, X-H. Shi, P. Sorensen, E. Elhalhuli, M. Calderon De La Barca Sanchez, E. Finch, R. S. Longacre, D. Relyea, W. Christie, J. Baudot, M. Wada, Peter Graham Jones, O. Catu, E. P. Sichtermann, Kyungeon Choi, L. Kotchenda, P. Kurnadi, Debasish Das, Raghunath Sahoo, B. Grube, A. M. Vander Molen, H. Zhang, Y. F. Wu, A. Kocoloski, W. M. Zhang, Andrey Vasiliev, Zhenyu Zhang, J. Balewski, Rashmi Raniwala, M. A.C. Lamont, H. Z. Huang, S. Vokal, W. T. Waggoner, Claude Andre Pruneau, W. Guryn, I. Sakrejda, D. Thein, S. Dash, G. Igo, M. R. Cosentino, K. Kajimoto, T. P. Burton, L. Didenko, T. S. McShane, A. Ogawa, O. G. Grebenyuk, G. M.S. Vasconcelos, Janet Elizabeth Seger, J. Fedorisin, J. H. Thomas, H. F. Chen, W. R. Edwards, J. X. Zuo, T. Ullrich, A. M. Hoffman, F. Benedosso, M. Kopytine, R. Witt, N. Schmitz, E. Shahaliev, P. Djawotho, B. Haag, K. Schweda, M. Tokarev, S. Lange, J. Millane, A. G. Knospe, R. Zoulkarneev, J. Engelage, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, Raimond Snellings, T. Dietel, S. Mioduszewski, J. Kiryluk, S. J. Lindenbaum, Andrew Rose, Y. Zhao, S. LaPointe, W. J. Llope, A. Shabetai, Mirko Planinic, V. Yu Khodyrev, D. P. Mahapatra, R. S. Hollis, D. Kettler, Zebo Tang, Xiangming Sun, N. Xu, P. Filip, L. Eun, S. R. Klein, T. G. Dedovich, T. Tarnowsky, N. L. Subba, A. Gordon, C. Nepali, F. Laue, A. Szanto de Toledo, J. Kapitan, D. L. Olson, Jorn Henning Putschke, B. K. Srivastava, I. M. Vasilevski, T. D. S. Stanislaus, S. Baumgart, H. H. Wieman, S. M. Dogra, I. A. Qattan, Z. Chajecki, F. Liu, Q. H. Xu, S. U. Chung, T. Sakuma, Adam Ryszard Kisiel, G. D. Westfall, S. C. Phatak, A. V. Brandin, Y. N. Gorbunov, Marcelo Gameiro Munhoz, D. J. Prindle, T. Pawlak, H. Okada, G. S. Averichev, L. K. Mangotra, Z. J. Sun, S. Bhardwaj, Boris Hippolyte, Yinina Ma, A. A. Derevschikov, X. Lin, H. J. Crawford, A. L. Trattner, D. A. Morozov, C. Perkins, R. N. Singaraju, R. Manweiler, J. L. Drachenberg, Bedangadas Mohanty, Russell Richard Betts, Petr Jákl, T. Peitzmann, X. L. Wang, R. D. Majka, G. Wang, B. D. Anderson, D. G. Underwood, A. P. Meschanin, V. Fine, S. E. Vigdor, Christian Claude Kuhn, C. Zhong, P. Seyboth, Lijuan Ruan, A. M. Poskanzer, N. Gupta, A. Feng, E. J. Garcia-Solis, J. W. Harris, S. Margetis, R. F. Clarke, J. Schambach, V. Emelianov, A. K. Bhati, D. Keane, M. A. Lisa, Premomoy Ghosh, J. M. Landgraf, Anju Bhasin, Nikolai Smirnov, N. K. Pruthi, C-Q. Li, G. Eppley, M. Shao, Jay Roberts, A. Kechechyan, Andre Mischke, M. van Leeuwen, X. Dong, A. Ridiger, Thorsten Sven Kollegger, T. J. Hallman, J. Cheng, T. J. M. Symons, R. Derradi de Souza, B. I. Abelev, Jake Y. Chen, R. Stock, J. Mitchell, S. Kabana, J. Tian, L. G. Efimov, Y. P. Viyogi, A. Lebedev, Shaobo Zhang, S. K. Pal, R. P. Scharenberg, Christina Markert, Anthony R. Timmins, E. Braidot, H. S. Matis, P. Fachini, F. Jin, P. Yepes, M. M. de Moura, C-H. Lee, T. K. Nayak, B. E. Bonner, M. J. M. Codrington, S. Bueltmann, M. Botje, A. H. Tang, O. D. Tsai, M. C. Cervantes, S. Heppelmann, J. G. Cramer, M. Zawisza, H. M. Spinka, Jie Liu, W. W. Jacobs, J. Lauret, M. Strikhanov, M. Sharma, J. H. Chen, J. Pluta, J. C. Dunlop, Hanna Paulina Zbroszczyk, Y. Fisyak, R. Lednicky, M. Bystersky, B. Erazmus, A. Kumar, F. Du, N. G. Minaev, Zubayer Ahammed, M. J. LeVine, V. Rykov, L. V. Nogach, M. J. Ng, V. I. Kravtsov, Sevil Salur, Y. Wang, D. R. Beavis, Xuejun Wang, Y. Panebratsev, J. Sandweiss, T. J. Humanic, D. Grosnick, V. Kouchpil, D. Cebra, S. Trentalange, M. Estienne, N. T. Porile, Qian Yue, I. K. Yoo, R. Varma, Yu A. Matulenko, D. D. Koetke, J. E. Draper, B. Stringfellow, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, Bernd Surrow, Y. Lu, M. Pachr, K. Kang, M. Potekhin, E. G. Judd, David Lynn, Q. Wang, R. E. Tribble, Basanta Kumar Nandi, M. J. Russcher, M. DePhillips, Pawan Kumar Netrakanti, J. P. Coffin, Michal Sumbera, Gerald W Hoffmann, Y. Bai, J. G. Ma, Jing Zhou, S. W. Wissink, Y. Zhang, C. A. Gagliardi, N. van der Kolk, Nikola Poljak, V. A. Okorokov, B. V.K.S. Potukuchi, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, M. R. Dutta Mazumdar, H. Liu, A. Chikanian, M. J. Skoby, O. V. Rogachevskiy, V. N. Tram, W. A. Love, Madan M. Aggarwal, Fuqiang Wang, M. Oldenburg, W. L. Zhan, Frank Simon, D. Arkhipkin, A. Hamed, A. Iordanova, C. Roy, J. Ulery, H. G. Ritter, O. Barannikova, R. Bellwied, L. Gaillard, P. Chaloupka, L. C. Bland, L. Liu, M. C. Suarez, Guo-Liang Ma, A. S. Hirsch, J. C. Webb, P. Kravtsov, M. S. Daugherity, J. Sowinski, M. L. Miller, F. Videbæk, Sukalyan Chattopadhyay, M. S. Ganti, V. Perevoztchikov, E. W. Hughes, I. Selyuzhenkov, G. Van Buren, S. S. Shi, T. W. Ludlam, J. M. Nelson, Yan Li, W. Peryt, David Jonathan Hofman, A. Stadnik, Peter Martin Jacobs, S. B. Nurushev, Morton Kaplan, and X. Z. Cai
Subjects: Physics, Quark, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Elliptic flow, 01 natural sciences, Omega, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Scaling
Abstract: We present STAR results on the elliptic flow upsilon(2) Of charged hadrons, strange and multistrange particles from,root s(NN) = 200 GeV Au+Au collisions at the BNL Relativistic Heavy Ion Collider (RHIC). The detailed study of the centrality dependence of upsilon(2) over a broad transverse momentum range is presented. Comparisons of different analysis methods are made in order to estimate systematic uncertainties. To discuss the nonflow effect, we have performed the first analysis Of upsilon(2) with the Lee-Yang zero method for K(S)(0) and A. In the relatively low PT region, P(T)
Published: 2008

175. Enhanced strange baryon production in Au+Au collisions compared top+patsNN=200GeV

Author: A. Ridiger, Thorsten Sven Kollegger, J. Ulery, H. G. Ritter, O. Barannikova, R. Bellwied, R. L. Ray, L. Gaillard, R. S. Longacre, Sergey Timoshenko, Z. Xu, G. Lin, M. Heinz, Lee Stuart Barnby, D. Staszak, V. Ghazikhanian, S. Heppelmann, L. C. Bland, Jaroslav Bielcik, M. S. Daugherity, Anik Gupta, J. C. Dunlop, Marek Bombara, T. Ljubicic, N. Xu, L. Liu, D. Thein, C. Nepali, J. L. Romero, Jorn Henning Putschke, M. C. Suarez, Jianhong Wu, P. Filip, H. Caines, Sudhir Raniwala, Debasish Das, Raghunath Sahoo, M. Kopytine, J. Fu, H. Liu, M. R. Dutta Mazumdar, Kyungeon Choi, A. Chikanian, M. J. Skoby, D. D. Koetke, J. E. Draper, L. Kotchenda, T. J. Humanic, Zubayer Ahammed, M. Tokarev, E. Elhalhuli, D. Relyea, B. Erazmus, M. A.C. Lamont, G. D. Westfall, M. L. Miller, A. V. Brandin, O. V. Rogachevskiy, V. N. Tram, H. Okada, E. Finch, N. T. Porile, E. P. Sichtermann, Jifa Tian, Adam Ryszard Kisiel, M. J. LeVine, G. Igo, A. Shabetai, Qian Yue, Petr Jákl, J. Balewski, Xuan Wang, H. J. Crawford, S. E. Vigdor, J. Bouchet, W. A. Love, J. P. Coffin, D. Cebra, S. Trentalange, Rashmi Raniwala, D. Arkhipkin, T. D. S. Stanislaus, A. Hamed, A. Ogawa, H. H. Wieman, R. Varma, Christian Claude Kuhn, W. T. Waggoner, Claude Andre Pruneau, Yu A. Matulenko, J. Millane, H. F. Chen, Thomas A. Trainor, W. R. Edwards, M. Estienne, J. H. Thomas, L. K. Mangotra, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, Guo-Liang Ma, Q. H. Xu, B. Haag, B. Stringfellow, C-Q. Li, A. M. Vander Molen, K. Kang, A. Iordanova, R. Fatemi, T. Ullrich, H. Z. Huang, S. Vokal, S. U. Chung, Z. J. Sun, R. Manweiler, T. S. McShane, R. P. Scharenberg, Christina Markert, Andrew Rose, Y. Zhao, I. K. Yoo, Y. G. Gorbunov, Marcelo Gameiro Munhoz, D. J. Prindle, K. Krueger, R. Zoulkarneev, C. Roy, H. Zhang, A. M. Poskanzer, S. Baumgart, Zebo Tang, H. S. Matis, E. Hjort, M. J. Horner, C. A. Whitten, Feng Jin, L. Eun, G. Wang, Bernd Surrow, M. A. Lisa, I. A. Qattan, P. Seyboth, A. S. Hirsch, J. C. Webb, J. Callner, I. Sakrejda, J. Kiryluk, D. Kettler, W. He, E. J. Garcia-Solis, A. Kechechyan, Andre Mischke, E. Braidot, Z. Chajecki, W. W. Jacobs, M. Cherney, J. X. Zuo, Thomas Michael Cormier, Lokesh Kumar, P. Kravtsov, S. Lange, R. N. Singaraju, A. P. Meschanin, J. Lauret, C. Perkins, D. A. Morozov, M. Sarsour, S. J. Lindenbaum, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, X. L. Wang, S. Kabana, Y. P. Viyogi, R. Derradi de Souza, B. I. Abelev, E. G. Judd, S. LaPointe, P. Chaloupka, C. Zhong, R. Lednicky, T. Peitzmann, Pawan Kumar Netrakanti, M. Potekhin, A. Gordon, G. S. Averichev, J. W. Harris, A. Kumar, M. van Leeuwen, X. Dong, T. W. Henry, David Lynn, Q. Wang, M. J. Russcher, R. Witt, J. Speltz, J. G. Cramer, F. Du, J. Sowinski, M. Sharma, S. K. Pal, Anthony R. Timmins, S. Mioduszewski, M. J. M. Codrington, C. A. Gagliardi, N. van der Kolk, M. DePhillips, J. S. Wang, P. Yepes, Yuanfang Wu, T. Dietel, S. Bueltmann, Renaud Vernet, N. G. Minaev, F. Videbæk, V. Rykov, V. Yu Khodyrev, A. H. Tang, J. Engelage, Michal Sumbera, Madan M. Aggarwal, Fuqiang Wang, Mirko Planinic, J. G. Ma, Jing Zhou, Basanta Kumar Nandi, Sukalyan Chattopadhyay, M. S. Ganti, M. Calderon De La Barca Sanchez, V. A. Okorokov, O. Catu, Y. Fisyak, G. M.S. Vasconcelos, L. V. Nogach, M. J. Ng, Premomoy Ghosh, J. M. Landgraf, A. Kocoloski, Q. Li, Y. Bai, Y. P. Lu, V. Perevoztchikov, E. W. Hughes, S. Dash, B. K. Srivastava, I. M. Vasilevski, N. Schmitz, E. Shahaliev, K. L. Kowalik, V. I. Kravtsov, S. W. Wissink, Y. Zhang, M. Strikhanov, S. L. Blyth, S. Bhardwaj, Nikola Poljak, Frank Simon, J. Sandweiss, Boris Hippolyte, J. L. Drachenberg, P. Kurnadi, M. Zawisza, H. M. Spinka, N. Gupta, A. Feng, Jay Roberts, Bedangadas Mohanty, Zhenyu Zhang, M. R. Cosentino, F. Benedosso, J. H. Chen, M. Bystersky, T. G. Dedovich, T. Sakuma, S. C. Phatak, V. Fine, A. I. Pavlinov, F. Liu, R. D. Majka, J. Y. Chen, S. Margetis, R. F. Clarke, J. Schambach, W. Christie, W. M. Zhang, Andrey Vasiliev, G. Eppley, K. Kajimoto, Janet Elizabeth Seger, A. M. Hoffman, Anju Bhasin, J. Pluta, S. Q. Zhang, A. Lebedev, M. M. de Moura, M. Botje, M. Pachr, R. E. Tribble, Gerald W Hoffmann, Raimond Snellings, Xiangming Sun, B. D. Anderson, N. K. Pruthi, S. R. Klein, T. Tarnowsky, N. L. Subba, D. L. Olson, A. A. Derevschikov, A. L. Trattner, Russell Richard Betts, P. Fachini, Sergey Voloshin, Christine Nattrass, K. S.F.F. Guimaraes, D. G. Underwood, Lijuan Ruan, M. Shao, Jana Bielcikova, T. J. Hallman, J. Cheng, T. J. M. Symons, P. Sorensen, X. H. Shi, Peter Graham Jones, L. Didenko, J. Baudot, W. Zhan, M. Wada, F. Laue, A. Szanto de Toledo, J. Kapitan, T. P. Burton, S. M. Dogra, P. Djawotho, T. Pawlak, Morton Kaplan, X. Z. Cai, X. Lin, David Jonathan Hofman, A. Stadnik, Peter Martin Jacobs, J. Takahashi, B. Grube, S. B. Nurushev, I. Selyuzhenkov, G. Van Buren, T. W. Ludlam, W. Guryn, J. M. Nelson, Yan Li, W. Peryt, O. G. Grebenyuk, J. Fedorisin, A. G. Knospe, D. P. Mahapatra, R. S. Hollis, Y. Panebratsev, D. Grosnick, V. Kouchpil, B. E. Bonner, O. D. Tsai, M. C. Cervantes, B. V.K.S. Potukuchi, Yu-Gang Ma, Sevil Salur, Y. Wang, W. J. Llope, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, C-H. Lee, T. K. Nayak, Jie Liu, Hanna Paulina Zbroszczyk, and D. R. Beavis
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hyperon, Strangeness, Lambda, 01 natural sciences, 7. Clean energy, Omega, Spectral line, Baryon, Nuclear physics, 0103 physical sciences, Rapidity, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: We report on the observed differences in production rates of strange and multistrange baryons in Au+Au collisions at √sNN=200 GeV compared to p+p interactions at the same energy. The strange baryon yields in Au+Au collisions, when scaled down by the number of participating nucleons, are enhanced relative to those measured in p+p reactions. The enhancement observed increases with the strangeness content of the baryon, and it increases for all strange baryons with collision centrality. The enhancement is qualitatively similar to that observed at the lower collision energy √sNN=17.3 GeV. The previous observations are for the bulk production, while at intermediate pT,1
Published: 2008

176. ρ0photoproduction in ultraperipheral relativistic heavy ion collisions atsNN=200GeV

Author: 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, S. Baumgart, D. R. Beavis, 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, E. Braidot, A. V. Brandin, S. Bueltmann, T. P. Burton, M. Bystersky, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, 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, K. E. Choi, W. Christie, S. U. Chung, R. F. Clarke, M. J. M. Codrington, J. P. Coffin, 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, R. Derradi de Souza, L. Didenko, T. Dietel, P. Djawotho, S. M. Dogra, X. Dong, J. L. Drachenberg, J. E. Draper, F. Du, J. C. Dunlop, M. R. Dutta Mazumdar, W. R. Edwards, L. G. Efimov, E. Elhalhuli, V. Emelianov, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, L. Eun, 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, A. Gordon, O. Grebenyuk, D. Grosnick, B. Grube, S. M. Guertin, K. S. F. F. Guimaraes, A. Gupta, N. Gupta, W. Guryn, 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, 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. Jin, P. G. Jones, E. G. Judd, S. Kabana, K. Kajimoto, K. Kang, J. Kapitan, M. Kaplan, D. Keane, A. Kechechyan, D. Kettler, V. Yu. Khodyrev, J. Kiryluk, A. Kisiel, 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, A. Kumar, P. Kurnadi, M. A. C. Lamont, J. M. Landgraf, S. Lange, S. LaPointe, F. Laue, J. Lauret, A. Lebedev, R. Lednicky, C.-H. Lee, M. J. LeVine, C. Li, Q. Li, Y. Li, G. Lin, X. Lin, S. J. Lindenbaum, M. A. Lisa, F. Liu, H. 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, H. S. Matis, Yu. A. Matulenko, T. S. McShane, 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, M. J. Ng, L. V. Nogach, S. B. Nurushev, G. Odyniec, A. Ogawa, H. Okada, V. Okorokov, 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, 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, L. Ruan, M. J. Russcher, V. Rykov, R. Sahoo, I. Sakrejda, T. Sakuma, S. Salur, J. Sandweiss, M. Sarsour, J. Schambach, R. P. Scharenberg, N. Schmitz, J. Seger, I. Selyuzhenkov, P. Seyboth, A. Shabetai, E. Shahaliev, M. Shao, M. Sharma, X.-H. Shi, E. P. Sichtermann, F. Simon, R. N. Singaraju, M. J. Skoby, N. Smirnov, R. Snellings, P. Sorensen, J. Sowinski, J. Speltz, 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, Z. Tang, T. Tarnowsky, D. Thein, J. H. Thomas, J. Tian, A. R. Timmins, S. Timoshenko, M. Tokarev, T. A. Trainor, V. N. Tram, A. L. Trattner, 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, G. M. S. Vasconcelos, I. M. Vasilevski, A. N. Vasiliev, R. Vernet, F. Videbaek, S. E. Vigdor, Y. P. Viyogi, S. Vokal, S. A. Voloshin, M. Wada, W. T. Waggoner, F. Wang, G. Wang, J. S. Wang, Q. Wang, X. 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, M. Zawisza, H. Zbroszczyk, W. Zhan, H. Zhang, S. Zhang, W. M. Zhang, Y. Zhang, Z. P. Zhang, Y. Zhao, C. Zhong, J. Zhou, R. Zoulkarneev, Y. Zoulkarneeva, and J. X. Zuo
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Sigma, HERA, Coulomb excitation, Photon energy, Coupling (probability), 01 natural sciences, Helicity, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Spin (physics), Glauber
Abstract: Photoproduction reactions occur when the electromagnetic field of a relativistic heavy ion interacts with another heavy ion. The STAR collaboration presents a measurement of rho^0 and direct pi^+pi^- photoproduction in ultra-peripheral relativistic heavy ion collisions at sqrt(s_{NN})=200 GeV. We observe both exclusive photoproduction and photoproduction accompanied by mutual Coulomb excitation. We find a coherent cross-section of sigma(AuAu) -> Au^*Au^*rho^0 = 530 pm 19 (stat.) pm 57 (syst.) mb, in accord with theoretical calculations based on a Glauber approach, but considerably below the predictions of a color dipole model. The rho^0 transverse momentum spectrum (p_{T}^2) is fit by a double exponential curve including both coherent and incoherent coupling to the target nucleus; we find sigma_{inc}/sigma_{coh} = 0.29 pm 0.03 (stat.) pm 0.08 (syst.). The ratio of direct pi^+pi^- to rho^0 production is comparable to that observed in gamma p collisions at HERA, and appears to be independent of photon energy. Finally, the measured rho^0 spin helicity matrix elements agree within errors with the expected s-channel helicity conservation.
Published: 2008

177. Search for Lorentz and CPT violation effects in muon spin precession

Author: A. Lam, G. T. Danby, I. Logashenko, V. P. Druzhinin, Frederick Gray, A. Grossmann, F. Krienen, E. P. Sichtermann, M. F. Hare, G. Bunce, L. Duong, Satish Dhawan, O. Rind, Wuzheng Meng, William Deninger, B.I. Khazin, D. Urner, Lawrence Sulak, J. P. Miller, H. N. Brown, P. Cushman, M. Kawamura, S. Sedykh, P. T. Debevec, F. J. M. Farley, Q. Peng, M. Sossong, B. L. Roberts, D. Nikas, I. Kronkvist, C. S. Özben, G. zu Putlitz, A. Yamamoto, S. I. Redin, J. Kindem, X. Huang, M. Grosse-Perdekamp, D. Warburton, D. Zimmerman, J. Pretz, Yu. M. Shatunov, C. C. Polly, J. M. Paley, D. W. Hertzog, Yuri F. Orlov, D. Kawall, E. P. Solodov, B. Bousquet, N.M. Ryskulov, R. M. Carey, C. J. G. Onderwater, S. Giron, R. Prigl, J. Mi, Y. Mizumachi, V. W. Hughes, T. Qian, G. W. Bennett, C. Timmermans, R. McNabb, William Morse, G.V. Fedotovich, Alexei Trofimov, E. Efstathiadis, A. Steinmetz, Y.Y. Lee, D.N. Grigoriev, P. von Walter, Rasmus Larsen, H. Deng, D. Winn, Yannis K. Semertzidis, M. Deile, P. M. Shagin, Klaus-Peter Jungmann, Masahiko Iwasaki, and KVI - Center for Advanced Radiation Technology
Subjects: Larmor precession, Physics, Particle physics, Muon, Anomalous magnetic dipole moment, CPT symmetry, VALUES, SYMMETRY, HIGHER-DIMENSIONAL THEORIES, General Physics and Astronomy, Muon spin spectroscopy, Omega, STRINGS, INVARIANCE, Standard Model, High Energy Physics - Experiment, High Energy Physics - Phenomenology, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, High Energy Physics::Experiment, ANOMALOUS MAGNETIC-MOMENT, SPACED DATA, Spin-½
Abstract: The spin precession frequency of muons stored in the $(g-2)$ storage ring has been analyzed for evidence of Lorentz and CPT violation. Two Lorentz and CPT violation signatures were searched for: a nonzero $\Delta\omega_{a}$ (=$\omega_{a}^{\mu^{+}}-\omega_{a}^{\mu^{-}}$); and a sidereal variation of $\omega_{a}^{\mu^{\pm}}$. No significant effect is found, and the following limits on the standard-model extension parameters are obtained: $b_{Z} =-(1.0 \pm 1.1)\times 10^{-23}$ GeV; $(m_{\mu}d_{Z0}+H_{XY}) = (1.8 \pm 6.0 \times 10^{-23})$ GeV; and the 95% confidence level limits $\check{b}_{\perp}^{\mu^{+}}< 1.4 \times 10^{-24}$ GeV and $\check{b}_{\perp}^{\mu^{-}} < 2.6 \times 10^{-24}$ GeV., Comment: 5 pages, 3 figures, submitted to Physical Review Letters, Modified to answer the referees suggestions
Published: 2008

178. Forward neutral-pion transverse single-spin asymmetries in p + p collisions at sqrt[s] = 200 GeV

Author: 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, S, Baumgart, D R, Beavis, 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, E, Braidot, A V, Brandin, S, Bueltmann, T P, Burton, M, Bystersky, X Z, Cai, H, Caines, M, Calderón de la Barca Sánchez, 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, K E, Choi, W, Christie, S U, Chung, R F, Clarke, M J M, Codrington, J P, Coffin, 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, R, Derradi de Souza, L, Didenko, T, Dietel, P, Djawotho, S M, Dogra, X, Dong, J L, Drachenberg, J E, Draper, F, Du, J C, Dunlop, M R, Dutta Mazumdar, W R, Edwards, L G, Efimov, E, Elhalhuli, V, Emelianov, J, Engelage, G, Eppley, B, Erazmus, M, Estienne, L, Eun, 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, A, Gordon, H, Gos, O, Grebenyuk, D, Grosnick, B, Grube, S M, Guertin, K S F F, Guimaraes, A, Gupta, N, Gupta, W, Guryn, B, Haag, T J, Hallman, A, Hamed, J W, Harris, W, He, M, Heinz, T W, Henry, S, Heppelmann, B, Hippolyte, 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, Jin, P G, Jones, E G, Judd, S, Kabana, K, Kajimoto, K, Kang, J, Kapitan, M, Kaplan, D, Keane, A, Kechechyan, D, Kettler, V Yu, Khodyrev, J, Kiryluk, A, Kisiel, 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, A, Kumar, P, Kurnadi, M A C, Lamont, J M, Landgraf, J, Langdon, S, Lange, S, LaPointe, F, Laue, J, Lauret, A, Lebedev, R, Lednicky, C-H, Lee, M J, LeVine, C, Li, Q, Li, Y, Li, G, Lin, X, Lin, S J, Lindenbaum, M A, Lisa, F, Liu, H, 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, H S, Matis, Yu A, Matulenko, T S, McShane, A, Meschanin, J, Millane, C, Miller, 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, M J, Ng, L V, Nogach, S B, Nurushev, G, Odyniec, A, Ogawa, H, Okada, V, Okorokov, 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, B V K S, Potukuchi, D, Prindle, C, Pruneau, N K, Pruthi, J, Putschke, I A, Qattan, G, Rakness, 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, L, Ruan, M J, Russcher, V, Rykov, R, Sahoo, I, Sakrejda, T, Sakuma, S, Salur, J, Sandweiss, M, Sarsour, J, Schambach, R P, Scharenberg, N, Schmitz, J, Seger, I, Selyuzhenkov, P, Seyboth, A, Shabetai, E, Shahaliev, M, Shao, M, Sharma, X-H, Shi, E P, Sichtermann, F, Simon, R N, Singaraju, M J, Skoby, N, Smirnov, R, Snellings, P, Sorensen, J, Sowinski, J, Speltz, 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, Z, Tang, T, Tarnowsky, J, Tatarowicz, D, Thein, J H, Thomas, J, Tian, A R, Timmins, S, Timoshenko, M, Tokarev, T A, Trainor, V N, Tram, A L, Trattner, 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, G M S, Vasconcelos, I M, Vasilevski, A N, Vasiliev, R, Vernet, F, Videbaek, S E, Vigdor, Y P, Viyogi, S, Vokal, S A, Voloshin, M, Wada, W T, Waggoner, F, Wang, G, Wang, J S, Wang, Q, Wang, X, Wang, X L, Wang, Y, Wang, J C, Webb, G D, Westfall, C, Whitten, 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, N, Zachariou, M, Zawisza, W, Zhan, H, Zhang, S, Zhang, W M, Zhang, Y, Zhang, Z P, Zhang, Y, Zhao, C, Zhong, J, Zhou, R, Zoulkarneev, Y, Zoulkarneeva, and J X, Zuo
Abstract: We report precision measurements of the Feynman x (xF) dependence, and first measurements of the transverse momentum (pT) dependence, of transverse single-spin asymmetries for the production of pi0 mesons from polarized proton collisions at sqrt[s] = 200 GeV. The xF dependence of the results is in fair agreement with perturbative QCD model calculations that identify orbital motion of quarks and gluons within the proton as the origin of the spin effects. Results for the pT dependence at fixed xF are not consistent with these same perturbative QCD-based calculations.
Published: 2008

179. Beam-Energy and System-Size Dependence of Dynamical Net Charge Fluctuations

Author: A. V. Brandin, H. Okada, S. E. Vigdor, Christian Claude Kuhn, M. M. De Moira, L. Kotchenda, A. Ridiger, Madan M. Aggarwal, T. S. McShane, J. H. Thomas, H. Zhang, J. S. Wang, E. G. Judd, A. Shabetai, I. Sakrejda, J. X. Zuo, S. LaPointe, Fuqiang Wang, A. Gordon, J. Wu, D. Thein, S. Baumgart, R. Fatemi, G. Eppley, David Jonathan Hofman, S. Bueltmann, D. Kettler, K. Krueger, R. S. Longacre, M. Kopytine, Z. J. Sun, Subhasis Chattopadhyay, Yong Xu, Thomas Peitzmann, M. S. Daugherity, V. Fine, R. Witt, R. L. Ray, M. J. Skoby, D. D. Koetke, J. Callner, M. Calderon De La Barca Sanchez, W. He, P. Fachini, A. Stadnik, M. Cherney, F. Laue, A. Szanto de Toledo, B. Erazmus, J. Kapitan, S. M. Dogra, Zebo Tang, G. S. Averichev, Y. P. Viyogi, Xu Cai, J. Pluta, W. M. Zhang, Andrey Vasiliev, S. Mioduszewski, V. N. Tram, L. C. Bland, Thomas Michael Cormier, Bedangadas Mohanty, Lokesh Kumar, Peter Martin Jacobs, V. Ghazikhanian, M. Sarsour, Debasish Das, Raghunath Sahoo, V. Yu Khodyrev, C. A. Gagliardi, O. Catu, Christine Nattrass, Gang Wang, Subrata Pal, T. D. S. Stanislaus, Z. Chajecki, M. A.C. Lamont, M. L. Miller, D. Staszak, Y. Fisyak, Sergei A. Voloshin, Janet Elizabeth Seger, J. P. Coffin, T. Pawlak, W. L. Zhan, H. H. Wieman, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, B. K. Srivastava, I. M. Vasilevski, J. Takahashi, J. G. Cramer, G. Igo, A. M. Hoffman, M. Pachr, R. E. Tribble, Mikhail Tokarev, Y. Panebratsev, D. Grosnick, Anju Bhasin, P. G. Jones, Frank Simon, K. S.F.F. Guimaraes, J. Engelage, L. K. Mangotra, D. P. Mahapatra, Gerald W Hoffmann, R. S. Hollis, C. Perkins, T. Ljubicic, S. Bhardwaj, Raimond Snellings, S. B. Nurushev, Marek Bombara, J. Bouchet, V. Kouchpil, X. Lin, Boris Hippolyte, J. L. Drachenberg, S. Vokal, R. Manweiler, T. Dictel, S. Zhang, M. Bystersky, Xiangming Sun, P. Seyboth, E. J. Garcia-Solis, A. Lebedev, J. Zhou, Adam Ryszard Kisiel, D. Arkhipkin, A. Kocoloski, B. V.K.S. Potukuchi, A. Hamed, Z. Xu, G. Lin, Yu-Gang Ma, A. Hirsch, Sudhir Raniwala, J. Millane, Premomoy Ghosh, I. Selyuzhenkov, Jana Bielcikova, J. M. Landgraf, M. DePhillips, A. M. Poskanzer, F. Videbæk, M. Botje, N. Gupta, A. Feng, Anik Gupta, R. Derradi de Souza, B. I. Abelev, B. Grube, J. L. Romero, Bernd Surrow, S. Dash, P. Kurnadi, W. J. Llope, Yufeng Zhang, Zhenyu Zhang, Michal Sumbera, J. E. Draper, Jianping Cheng, Andrew Rose, Jay Roberts, P. Sorensen, X. H. Shi, M. Strikhanov, J. Kiryluk, A. Kechechyan, Andre Mischke, Y. Zhao, B. D. Anderson, E. Elhalhuli, M. R. Cosentino, Hank Crawford, K. Kang, M. J. M. Codrington, Y. Bai, K. Kajimoto, Y. Li, J. Baudot, N. T. Porile, R. Cendejas, Qian Yue, M. Wada, Q. H. Xu, N. K. Pruthi, Jifa Tian, H. Caines, Ki-Seok Choi, M. S. Ganti, H. Bichsel, L. G. Efimov, W. Guryn, Pawan Kumar Netrakanti, E. Finch, Yifu Sun, S. W. Wissink, F. Benedosso, J. Sandweiss, D. A. Morozov, W. Christie, A. Iordanova, W. T. Waggoner, Nikola Poljak, L. Didenko, Chitrasen Jena, Samuel Heppelmann, Y. P. Lu, R. N. Singaraju, N. van der Kolk, V. Perevoztchikov, L. Huo, R. Varma, X. L. Wang, J. C. Dunlop, Yu A. Matulenko, A. P. Meschanin, F. Liu, O. G. Grebenyuk, M. Heinz, Lee Stuart Barnby, Morton Kaplan, C. Zhong, T. G. Dedovich, T. P. Burton, Jaroslav Bielcik, J. Liu, Zubayer Ahammed, T. Sakuma, S. R. Klein, S. C. Phatak, M. J. LeVine, T. Tarnowsky, N. L. Subba, Guo-Liang Ma, B. Stringfellow, R. D. Majka, J. Fedorisin, M. Zawisza, H. M. Spinka, Hanna Paulina Zbroszczyk, J. Y. Chen, D. L. Olson, S. Margetis, R. F. Clarke, I. K. Yoo, A. Chikanian, C. Roy, M. van Leeuwen, X. Dong, M. R. Dutta Mazumdar, D. R. Beavis, J. Schambach, G. Van Buren, A. G. Knospe, A. A. Derevschikov, A. L. Trattner, A. Kumar, J. C. Webb, P. Kravtsov, S. S. Shi, O. V. Rogachevskiy, F. Du, C. L. Jones, J. Joseph, Russell Richard Betts, D. R. Gangadharan, V. Emelianov, A. K. Bhati, D. Keane, T. W. Ludlam, G. M.S. Vasconcelos, E. P. Sichtermann, L. V. Nogach, M. J. Ng, J. M. Nelson, J. Balewski, Nikolai Smirnov, V. I. Kravtsov, J. Sowinski, Rashmi Raniwala, V. Rykov, Jing-Han Chen, W. Peryt, Claude Andre Pruneau, J. Mitchell, D. G. Underwood, Lijuan Ruan, C-H. Lee, T. K. Nayak, T. Ullrich, B. E. Bonner, O. D. Tsai, N. Schmitz, S. Kabana, M. Elnimr, R. Zoulkarneev, M. C. Cervantes, L. Eun, E. Shahaliev, Sevil Salur, A. M. Vander Molen, J. G. Ma, E. Hjort, Y. F. Wu, Y. Wang, M. Shao, Thomas Humanic, T. J. Hallman, J. W. Harris, P. Chaloupka, T. J. M. Symons, William Jacobs, Anthony R. Timmins, P. Yepes, A. H. Tang, Basanta Kumar Nandi, B. Biritz, V. A. Okorokov, G. Odyniec, Y. Zoulkarneeva, M. Potekhin, David Lynn, Q. Wang, M. J. Russcher, S. U. Chung, Marcelo Gameiro Munhoz, D. J. Prindle, M. A. Lisa, E. Braidot, D. Cebra, S. Trentalange, M. Estienne, C-Q. Li, R. P. Scharenberg, Christina Markert, H. S. Matis, J. Lauret, R. Lednicky, P. Djawotho, Sergey Timoshenko, Xuan Wang, A. Ogawa, H. F. Chen, W. R. Edwards, Mirko Planinic, Y. N. Gorbunov, C. A. Whitten, Feng Jin, S. J. Lindenbaum, N. Xu, P. Filip, G. D. Westfall, Petr Jákl, M. Sharma, N. G. Minaev, L. Liu, M. C. Suarez, J. Ulery, H. G. Ritter, H. Z. Huang, O. Barannikova, R. Bellwied, L. Gaillard, C. Nepali, Jorn Henning Putschke, Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)
Subjects: Nuclear and High Energy Physics, Au Collisions, Gev/C, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, 0103 physical sciences, Mean Transverse-Momentum, Rapidity, Multiplicity (chemistry), Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Size dependence, Scaling, Nuclear Collisions, Physics, Signal, 010308 nuclear & particles physics, Heavy-Ion Collisions, Collision, By-Event Fluctuations, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, Azimuth, Multiplicity, Pseudorapidity, Quark–gluon plasma, Quark-Gluon Plasma, charge correlation strength, Atomic physics
Abstract: We present measurements of net charge fluctuations in $Au + Au$ collisions at $\sqrt{s_{NN}} = $ 19.6, 62.4, 130, and 200 GeV, $Cu + Cu$ collisions at $\sqrt{s_{NN}} = $ 62.4, 200 GeV, and $p + p$ collisions at $\sqrt{s} = $ 200 GeV using the dynamical net charge fluctuations measure $\nu_{+-{\rm,dyn}}$. We observe that the dynamical fluctuations are non-zero at all energies and exhibit a modest dependence on beam energy. A weak system size dependence is also observed. We examine the collision centrality dependence of the net charge fluctuations and find that dynamical net charge fluctuations violate $1/N_{ch}$ scaling, but display approximate $1/N_{part}$ scaling. We also study the azimuthal and rapidity dependence of the net charge correlation strength and observe strong dependence on the azimuthal angular range and pseudorapidity widths integrated to measure the correlation., Comment: 15 pages, 6 figures, STAR Collaboration
Published: 2008
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180. System-Size Independence of Directed Flow Measured at the BNL Relativistic Heavy-Ion Collider

Author: A. M. Vander Molen, Y. F. Wu, B. Grube, M. L. Miller, X. L. Wang, W. Guryn, S. U. Chung, Guo-Liang Ma, Jie Liu, C. Zhong, A. Ridiger, A. S. Hirsch, J. C. Webb, P. Kravtsov, Marcelo Gameiro Munhoz, D. J. Prindle, L. K. Mangotra, R. Manweiler, I. Selyuzhenkov, Adam Ryszard Kisiel, J. Sowinski, J. L. Drachenberg, M. S. Daugherity, C. Roy, O. G. Grebenyuk, J. H. Thomas, C. A. Whitten, Feng Jin, Thorsten Sven Kollegger, A. M. Poskanzer, Bernd Surrow, H. J. Crawford, M. van Leeuwen, X. Dong, S. K. Pal, Hanna Paulina Zbroszczyk, F. Videbæk, Sergey Voloshin, Christine Nattrass, J. Fedorisin, N. Gupta, M. A. Lisa, D. R. Beavis, Sukalyan Chattopadhyay, A. Shabetai, M. S. Ganti, A. Kechechyan, Andre Mischke, Raimond Snellings, A. Feng, Y. P. Lu, V. Perevoztchikov, Y. Yang, E. W. Hughes, Jay Roberts, M. Calderon De La Barca Sanchez, R. S. Longacre, S. Heppelmann, W. Christie, A. G. Knospe, E. P. Sichtermann, Pawan Kumar Netrakanti, E. Braidot, Kyungeon Choi, L. Kotchenda, Z. Xu, G. Lin, R. Cendejas, K. Kang, S. Lange, J. Balewski, Rashmi Raniwala, R. Fatemi, D. Kettler, W. M. Zhang, Andrey Vasiliev, Claude Andre Pruneau, O. Catu, C. A. Gagliardi, S. J. Lindenbaum, G. M.S. Vasconcelos, N. van der Kolk, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, D. D. Koetke, J. E. Draper, C-Q. Li, A. Kumar, Debasish Das, K. Krueger, F. Du, Anik Gupta, N. Xu, P. Filip, D. Thein, J. Ulery, Raghunath Sahoo, T. Ullrich, K. Kajimoto, H. G. Ritter, V. Rykov, M. Potekhin, A. Kocoloski, P. Chaloupka, R. P. Scharenberg, Christina Markert, G. S. Averichev, F. Laue, A. Szanto de Toledo, M. Heinz, Lee Stuart Barnby, R. Zoulkarneev, N. Schmitz, E. Shahaliev, V. Ghazikhanian, Q. H. Xu, Xiangming Sun, Janet Elizabeth Seger, Z. J. Sun, M. A.C. Lamont, L. V. Nogach, M. J. Ng, Jaroslav Bielcik, J. G. Cramer, J. Baudot, M. Wada, G. D. Westfall, A. M. Hoffman, M. Kopytine, J. P. Coffin, Jianhong Wu, O. Barannikova, M. Tokarev, R. Bellwied, G. Igo, David Lynn, Q. Wang, L. Eun, V. I. Kravtsov, H. S. Matis, Marek Bombara, J. L. Romero, M. J. Russcher, R. Witt, J. Callner, A. Chikanian, M. J. Skoby, R. L. Ray, S. Mioduszewski, Petr Jákl, T. D. S. Stanislaus, V. N. Tram, J. Bouchet, L. Gaillard, L. C. Bland, Anju Bhasin, S. Q. Zhang, J. Kapitan, V. Yu Khodyrev, J. Engelage, D. Staszak, T. Ljubicic, S. Dash, L. Liu, H. Z. Huang, S. Vokal, E. Elhalhuli, H. Caines, Sudhir Raniwala, S. M. Dogra, V. Fine, B. K. Srivastava, I. M. Vasilevski, G. Wang, A. Lebedev, M. M. de Moura, M. Botje, J. Millane, T. Pawlak, W. He, M. Cherney, Thomas Michael Cormier, Lokesh Kumar, X. Lin, M. R. Dutta Mazumdar, O. V. Rogachevskiy, M. Sarsour, B. D. Anderson, M. C. Suarez, W. W. Jacobs, J. Lauret, E. Finch, D. Arkhipkin, A. Hamed, P. Seyboth, E. J. Garcia-Solis, Andrew Rose, Y. Zhao, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, J. G. Ma, Jing Zhou, Jake Y. Chen, Premomoy Ghosh, M. Zawisza, H. M. Spinka, W. J. Llope, W. A. Love, Bedangadas Mohanty, T. J. Humanic, J. M. Landgraf, A. Iordanova, T. P. Burton, S. Bhardwaj, J. Kiryluk, Russell Richard Betts, R. Lednicky, M. Strikhanov, N. K. Pruthi, Jifa Tian, D. P. Mahapatra, Boris Hippolyte, J. C. Dunlop, R. Derradi de Souza, B. I. Abelev, N. T. Porile, P. Djawotho, R. S. Hollis, D. G. Underwood, Lijuan Ruan, H. H. Wieman, Zubayer Ahammed, D. A. Morozov, Qian Yue, B. Erazmus, T. Dietel, M. J. LeVine, G. Eppley, Madan M. Aggarwal, Fuqiang Wang, R. N. Singaraju, P. Kurnadi, A. P. Meschanin, J. Sandweiss, F. Liu, M. Sharma, M. Shao, Mirko Planinic, Zhenyu Zhang, T. J. Hallman, R. Varma, Yu A. Matulenko, M. J. M. Codrington, M. R. Cosentino, D. Cebra, J. Cheng, T. J. M. Symons, S. Trentalange, N. G. Minaev, Yong Xu, Basanta Kumar Nandi, M. Estienne, B. Stringfellow, J. Pluta, F. Benedosso, Y. N. Gorbunov, T. S. McShane, R. D. Majka, W. T. Waggoner, B. Biritz, V. A. Okorokov, W. L. Zhan, T. G. Dedovich, S. Margetis, R. F. Clarke, J. Schambach, Morton Kaplan, T. Sakuma, Frank Simon, X. Z. Cai, S. C. Phatak, Y. Fisyak, B. V.K.S. Potukuchi, Yu-Gang Ma, S. Baumgart, J. W. Harris, J. H. Chen, M. Bystersky, M. Pachr, R. E. Tribble, B. Haag, David Jonathan Hofman, Anthony R. Timmins, Sergey Timoshenko, P. Yepes, Gerald W Hoffmann, A. Stadnik, S. Bueltmann, M. DePhillips, Peter Martin Jacobs, A. H. Tang, J. Takahashi, Y. J. Sun, S. B. Nurushev, V. Emelianov, Zebo Tang, Michal Sumbera, G. Van Buren, S. Kabana, Y. Bai, S. S. Shi, I. A. Qattan, T. W. Ludlam, Z. Chajecki, J. M. Nelson, A. K. Bhati, D. Keane, S. W. Wissink, Y. P. Viyogi, Yan Li, W. Peryt, Y. Zhang, C. Perkins, T. Peitzmann, Nikola Poljak, Nikolai Smirnov, Xuan Wang, A. Ogawa, H. F. Chen, Thomas A. Trainor, W. R. Edwards, R. Stock, J. Mitchell, I. K. Yoo, D. R. Gangadharan, E. G. Judd, L. G. Efimov, C-H. Lee, T. K. Nayak, Y. Panebratsev, D. Grosnick, V. Kouchpil, B. E. Bonner, O. D. Tsai, M. Elnimr, M. C. Cervantes, Sevil Salur, Y. Wang, J. S. Wang, C. Nepali, Jorn Henning Putschke, A. V. Brandin, H. Okada, S. E. Vigdor, Christian Claude Kuhn, H. Zhang, I. Sakrejda, J. X. Zuo, S. LaPointe, A. Gordon, P. Fachini, K. S.F.F. Guimaraes, Jana Bielcikova, P. Sorensen, X. H. Shi, Peter Graham Jones, L. Didenko, S. R. Klein, T. Tarnowsky, N. L. Subba, D. L. Olson, A. A. Derevschikov, and A. L. Trattner
Subjects: Nuclear reaction, Particle physics, Star, General Physics and Astronomy, 01 natural sciences, Anisotropic Flow, Nuclear physics, Au+Au and Cu+Cu collisions, 0103 physical sciences, Dependence, 010306 general physics, Nuclear Experiment, Physics, Energy, Time projection chamber, Nucleus-Nucleus Collisions, 010308 nuclear & particles physics, Elliptic flow, Collective Flow, Collision, Collaboration, Charged particle, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, Elliptic Flow, Pseudorapidity, Time Projection Chamber, Transverse momentum, Quark-Gluon Plasma, High Energy Physics::Experiment, Relativistic Heavy Ion Collider
Abstract: We measure directed flow (v_{1}) for charged particles in Au+Au and Cu+Cu collisions at sqrt[s_{NN}]=200 and 62.4 GeV, as a function of pseudorapidity (eta), transverse momentum (p_{t}), and collision centrality, based on data from the STAR experiment. We find that the directed flow depends on the incident energy but, contrary to all available model implementations, not on the size of the colliding system at a given centrality. We extend the validity of the limiting fragmentation concept to v_{1} in different collision systems, and investigate possible explanations for the observed sign change in v_{1}(p_{t}).
Published: 2008

181. A line-shape analysis for spin-1 NMR signals

Author: J. Kyynärämen, S. Bültmann, J. Vogt, D. Crabb, T. Pussieux, F. Lehar, D. Krämer, F. Tessarotto, Yu. Kisselev, F. Perrot-Kunne, W. Kröger, Iskender Atilla Reyhancan, T. Lindqvist, J. Ylöstalo, L. Naumann, J. Cranshaw, A. Bressan, P. Schiavon, W. Wislicki, I. Sabo, A. Karev, C. Dulya, Matias Rodriguez, M. Litmaath, G. Igo, T. Çuhadar, J. A. Garzon, A. Steinmetz, Franco Bradamante, D. Y. Bardin, B. Derro, Heinrich B. Stuhrmann, J. Harmsen, A. Witzmann, Günter Baum, Ricardo Piegaia, M. Giorgi, N. Horikawa, Patrick Hautle, P. Berglund, Clemens A. Heusch, E. Rondio, D. L. Adams, S. K. Dhawan, J. Zhao, R. Birsa, F. Feinstein, A. Magnon, N. de Botton, D. Pose, Victor Kukhtin, G. Unel, J. H. Moromisato, K. Zaremba, H. J. Kessler, M. Lamanna, E. von Goeler, F. Sever, Roland Windmolders, D. Peshekhonov, K. Rurek, G. van Middelkoop, M. Plo, G. Reicherz, V. W. Hughes, S. Dalla Torre, David Miller, A. Arvidson, L. Klostermann, E. Gülmez, J. M. Le Goff, Alan D. Martin, E. Burtin, T. Kageya, E. M. Kabuß, A. Gallas, H. Postma, R. E. Segel, M. K. Ballintijn, A. Ogawa, G. K. Mallot, M. Boutemeur, D. Fasching, W. Meyer, J. Saborido, T. Hasegawa, J. S. McCarthy, A. de Lesquen, K. M. Teichert, A. Rijllart, Anna Zanetti, T. Matsuda, J. Pretz, A. Kishi, J. Martino, Bernardo Adeva, Jay Roberts, A. Rosado, R. Gehring, D. von Harrach, M. Lowe, T. Gaussiran, Lawrence S. Pinsky, St. Goertz, Michal Szleper, M. Grosse Perdekamp, Yannis K. Semertzidis, J. Pyrlik, J. C. Faivre, C. A. Whitten, Lidia Kalinovskaya, G. Gracia, Regine Willumeit, A. Sandacz, L. Betev, A. Dyring, W. Tlaczala, I.A. Savin, M. Velasco, Takahiro Iwata, S. Eichblatt, S. Rock, P. Björkholm, B. W. Mayes, C. Cavata, E. P. Sichtermann, P. Shanahan, B. Frois, K. P. Schüler, E. Arik, U. Stiegler, Roy Weinstein, N. De Groot, F. Simeoni, A. Nagaitsev, G.I. Smirnov, F. Marie, Aina Yañez, T. O. Niinikoski, J. E.J. Oberski, J. Nassalski, R. Seitz, Faustino Gómez, Kunikazu Mori, K. Medved, A. Tripet, J. Lichtenstadt, S. Platchkov, S. Ishimoto, R. van Dantzig, B. E. Bonner, C. S. Özben, Rudiger Voss, Ulrich Landgraf, V. G. Krivokhijine, Drew Parks, G. Bardin, A. Staude, Abhay Deshpande, T. J. Ketel, B. Badelek, C. Fernandez, N. Hayashi, I. G. Bird, (Astro)-Particles Physics, C., Dulya, D., Adam, B., Adeva, E., Arik, A., Arvidson, B., Badelek, M. K., Ballintijn, D., Bardin, G., Bardin, G., Baum, P., Berglund, L., Betev, I. G., Bird, Birsa, Renato, P., Björkholm, B. E., Bonner, N., de Botton, M., Boutemeur, Bradamante, Franco, Bressan, Andrea, S., Bültmann, E., Burtin, C., Cavata, D., Crabb, J., Cranshaw, T., Çuhadar, DALLA TORRE, Silvia, R., van Dantzig, B., Derro, A., Deshpande, S., Dhawan, A., Dyring, S., Eichblatt, J. C., Faivre, D., Fasching, F., Feinstein, C., Fernandez, B., Froi, A., Galla, J. A., Garzon, T., Gaussiran, R., Gehring, Giorgi, Marcello, E., von Goeler, Goertz, S. t., F., Gomez, G., Gracia, N., de Groot, M., Grosse Perdekamp, E., Gülmez, J., Harmsen, D., von Harrach, T., Hasegawa, P., Hautle, N., Hayashi, C. A., Heusch, N., Horikawa, V. W., Hughe, G., Igo, S., Ishimoto, T., Iwata, E. M., Kabuß, T., Kageya, L., Kalinovskaya, A., Karev, H. J., Kessler, T. J., Ketel, A., Kishi, Kisselev, Y. u., L., Klostermann, D., Krämer, V., Krivokhijine, W., Kröger, V., Kukhtin, K., Kurek, J., Kyynäräinen, M., Lamanna, U., Landgraf, J. M., Le Goff, F., Lehar, A., de Lesquen, J., Lichtenstadt, T., Lindqvist, M., Litmaath, M., Lowe, A., Magnon, G. K., Mallot, F., Marie, Martin, Anna, J., Martino, T., Matsuda, B., Maye, J. S., Mccarthy, K., Medved, W., Meyer, G., van Middelkoop, D., Miller, K., Mori, J., Moromisato, A., Nagaitsev, J., Nassalski, L., Naumann, T. O., Niinikoski, J. E. J., Oberski, A., Ogawa, C., Ozben, D. P., Park, F., Perrot Kunne, D., Peshekhonov, R., Piegaia, L., Pinsky, S., Platchkov, M., Plo, D., Pose, H., Postma, J., Pretz, T., Pussieux, J., Pyrlik, G., Reicherz, I., Reyhancan, A., Rijllart, J. B., Robert, S., Rock, M., Rodriguez, E., Rondio, A., Rosado, I., Sabo, J., Saborido, A., Sandacz, I., Savin, Schiavon, Paolo, K. P., Schüler, R., Segel, R., Seitz, Y., Semertzidi, F., Sever, P., Shanahan, E. P., Sichtermann, F., Simeoni, G. I., Smirnov, A., Staude, A., Steinmetz, U., Stiegler, H., Stuhrmann, M., Szleper, K. M., Teichert, F., Tessarotto, W., Tlaczala, A., Tripet, G., Unel, M., Velasco, J., Vogt, R., Vo, R., Weinstein, C., Whitten, R., Windmolder, R., Willumeit, W., Wislicki, A., Witzmann, A., Yañez, J., Ylöstalo, Zanetti, ANNA MARIA, K., Zaremba, and J., Zhao
Subjects: Coupling constant, Physics, dis, Nuclear and High Energy Physics, Butanol, media_common.quotation_subject, smc, polarized target, Q meter, di, Polarization (waves), Asymmetry, Molecular physics, chemistry.chemical_compound, Dipole, Nuclear magnetic resonance, Deuterium, chemistry, Detectors and Experimental Techniques, Instrumentation, Shape analysis (digital geometry), media_common
Abstract: An analytic model of the deuteron absorption function has been developed and is compared to experimental NMR signals of deuterated butanol obtained at the SMC experiment in order to determine the deuteron polarization. The absorption function model includes dipolar broadening and a frequency-dependent treatment of the intensity factors. The high-precision TE signal data available are used to adjust the model for Q-meter distortions and dispersion effects. Once the Q-meter adjustment is made, the enhanced polarizations determined by the asymmetry and TE-calibration methods compare well within the accuracy of each method. In analyzing the NMR signals, the quadrupolar coupling constants could be determined for both the CD and the OD bonds of deuterated butanol.
Published: 1997

182. Forward Λ production and nuclear stopping power ind+Aucollisions atsNN=200GeV

Author: T. S. McShane, F. Laue, A. Szanto de Toledo, B. Erazmus, J. Kapitan, S. M. Dogra, P. Kurnadi, S. Baumgart, L. Kotchenda, M. S. Ganti, H. Bichsel, Zhenyu Zhang, Reinhard Stock, T. Pawlak, T. Dietel, M. R. Cosentino, Mirko Planinic, Vitaly Okorokov, W. Christie, K. Kang, T. P. Burton, F. Benedosso, Saskia Mioduszewski, X. Lin, V. Perevoztchikov, Bernd Surrow, X. L. Wang, E. W. Hughes, V. V. Belaga, J. Speltz, P. Sorensen, S. R. Klein, Jichao Wang, T. Tarnowsky, N. L. Subba, K. L. Kowalik, Y. N. Gorbunov, L. Didenko, L. K. Mangotra, D. L. Olson, C. Zhong, Y. P. Viyogi, A. A. Derevschikov, J. Engelage, M. DePhillips, R. Manweiler, B. Grube, P. G. Jones, A. N. Zubarev, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, M. Zawisza, H. M. Spinka, V. Ghazikhanian, M. van Leeuwen, X. Dong, A. M. Poskanzer, Pawan Kumar Netrakanti, T. G. Dedovich, K. S.F.F. Guimaraes, J. Ulery, J. W. Harris, C-Q. Li, David Jonathan Hofman, T. Sakuma, Marcelo Gameiro Munhoz, D. J. Prindle, H. G. Ritter, R. P. Scharenberg, Christina Markert, H. Z. Huang, Subhasis Chattopadhyay, B. V.K.S. Potukuchi, Anju Bhasin, A. Bravar, M. Sharma, Michal Sumbera, J. L. Drachenberg, Yu-Gang Ma, A. Hirsch, S. C. Phatak, H. S. Matis, Premomoy Ghosh, J. M. Landgraf, D. P. Mahapatra, R. S. Hollis, O. Barannikova, William Jacobs, R. Bellwied, J. H. Thomas, A. Kechechyan, Andre Mischke, E. M. Kislov, J. G. Cramer, L. Gaillard, L. C. Bland, C. A. Gagliardi, M. L. Miller, P. Fachini, A. Stadnik, Anthony R. Timmins, Hank Crawford, N. G. Minaev, Marek Bombara, V. Fine, J. Lauret, A. Lebedev, N. van der Kolk, M. Strikhanov, Yuanfang Wu, R. Lednicky, Peter Martin Jacobs, M. A. Lisa, L. Ruan, A. A. Kuznetsov, Xiangming Sun, L. Liu, N. Gupta, Christine Nattrass, O. G. Grebenyuk, Y. Bai, R. L. Ray, J. L. Romero, E. Potrebenikova, D. Kettler, M. J. M. Codrington, M. M. de Moura, I-K. Yoo, S. L. Blyth, A. Feng, H. Caines, Y. Lu, P. Yepes, V. Eckardt, M. C. Suarez, Renaud Vernet, P. Filip, V. B. Dunin, Basanta Kumar Nandi, D. Staszak, Madan M. Aggarwal, Fuqiang Wang, Sergey Timoshenko, Guo-Liang Ma, J. Fedorisin, M. Kopytine, J. Fu, A. Chikanian, S. W. Wissink, J. Sandweiss, S. B. Nurushev, Jay Roberts, R. Snellings, G. Odyniec, N. K. Pruthi, Y. Zoulkarneeva, G. D. Westfall, I. Selyuzhenkov, T. Ljubicic, G. S. Averichev, M. Oldenburg, P. S. Sazhin, C. Roy, E. Finch, Z. Xu, G. Lin, M. Potekhin, P. Djawotho, A. G. Knospe, Russell Richard Betts, J. Baudot, W. Zhan, Sudhir Raniwala, Q. Yue, J. Takahashi, B. D. Anderson, J. C. Webb, P. Kravtsov, G. Van Buren, M. S. Daugherity, Nikola Poljak, David Lynn, D. G. Underwood, S. S. Shimanskiy, Petr Jákl, W. J. Llope, D. Relyea, A. Ogawa, E. P. Sichtermann, N. T. Porile, T. D. S. Stanislaus, Y. Li, M. J. Russcher, H. F. Chen, Thomas A. Trainor, W. R. Edwards, H. Gos, P. Chaloupka, H. H. Wieman, G. Eppley, T. W. Ludlam, J. Sowinski, Xu Cai, M. J. Horner, J. Pluta, A. I. Kulikov, A. Kumar, V. I. Yurevich, R. Varma, Yufeng Zhang, J. Balewski, Rashmi Raniwala, W. M. Zhang, Andrey Vasiliev, M. Shao, J. Callner, Yu A. Matulenko, J. M. Nelson, A. H. Tang, H. Liu, M. Botje, J. E. Draper, Claude Andre Pruneau, T. J. Hallman, T. J. M. Symons, F. Du, Nu Xu, R. Witt, J. G. Ma, W. Peryt, Janet Elizabeth Seger, D. Arkhipkin, Bedangadas Mohanty, A. Hamed, S. U. Chung, Wen-Qing Shen, B. Stringfellow, Frank Simon, A. M. Hoffman, M. Pachr, A. Iordanova, V. Yu Khodyrev, Subrata Pal, L. V. Nogach, T. Ullrich, A. I. Pavlinov, B. K. Srivastava, I. M. Vasilevski, Gerald W Hoffmann, F. Liu, R. Zoulkarneev, L. G. Efimov, M. Calderon De La Barca Sanchez, M. Heinz, Lee Stuart Barnby, J. Liu, O. Catu, C. A. Whitten, V. I. Kravtsov, Jaroslav Bielcik, R. D. Majka, S. Bhardwaj, Boris Hippolyte, D. Cebra, J. C. Dunlop, J. H. Chen, A. Kocoloski, M. Bystersky, Q. Li, S. Trentalange, S. Dash, J. Y. Chen, M. Estienne, S. Margetis, R. F. Clarke, J. Schambach, Yu Melnick, Morton Kaplan, M. R. Dutta Mazumdar, Robert E. Tribble, Zubayer Ahammed, M. J. LeVine, F. Jia, S. Lange, N. Schmitz, O. V. Rogachevskiy, Jana Bielcikova, S. J. Lindenbaum, E. Shahaliev, W. A. Love, Alexandre Shabetai, W. T. Waggoner, A. M. Vander Molen, B. Haag, E. Hjort, Y. Wang, I. A. Qattan, Z. Chajecki, C. Perkins, Thomas Humanic, B. E. Bonner, O. D. Tsai, S. Kabana, M. C. Cervantes, R. Fatemi, Sevil Salur, K. Krueger, Q. H. Xu, Thomas Peitzmann, Y. Panebratsev, D. Grosnick, V. Kouchpil, M. Wada, Z. J. Sun, W. He, M. Cherney, Thomas Michael Cormier, M. Sarsour, Samuel Heppelmann, Mikhail Tokarev, E. Garcia-Solis, R. N. Singaraju, A. P. Meschanin, J. Zhou, Adam Ryszard Kisiel, R. S. Longacre, S. Vokal, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, A. Bellingeri-Laurikainen, G. Igo, V. Emelianov, A. K. Bhati, D. Keane, J. Bouchet, Y. Fisyak, J. Millane, Andrew Rose, Y. Zhao, Nikolai Smirnov, J. Mitchell, J. Kiryluk, H. Zhang, E. G. Judd, D. A. Morozov, S. Lehocka, I. Sakrejda, C-H. Lee, T. K. Nayak, A. Ridiger, Thorsten Sven Kollegger, J. X. Zuo, G. Wang, J. Wu, P. Seyboth, L. Martin, S. LaPointe, D. D. Koetke, C. J. McClain, C. Nepali, Jorn Henning Putschke, B. I. Abelev, A. V. Brandin, Sergei A. Voloshin, J. P. Coffin, Jianping Cheng, T. W. Henry, S. E. Vigdor, and Christian Claude Kuhn
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, media_common.quotation_subject, Nuclear Theory, Hadron, Lambda, 01 natural sciences, 7. Clean energy, Asymmetry, Particle identification, Nuclear physics, Baryon, 0103 physical sciences, Stopping power (particle radiation), Nuclear Experiment, 010306 general physics, Nucleon, Relativistic Heavy Ion Collider, media_common
Abstract: We report the measurement of {lambda} and {lambda} yields and inverse slope parameters in d+Au collisions at {radical}(s{sub 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 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 without a hadronic rescattering phase do not describe the measured particle yields, while models that include target remnants or hadronic rescattering do. The multichain model can provide a good description of the net baryon density in d+Au collisions at energies currently available at the BNL Relativistic Heavy Ion Collider, and the derived parameters of the model agree with those from nuclear collisions at lower energies.
Published: 2007

183. Rapidity and species dependence of particle production at large transverse momentum ford+Aucollisions atsNN=200GeV

Author: G. Sood, A. Tai, J. Engelage, J. Amonett, John N. Wood, G. Eppley, N. Gupta, Anju Bhasin, R. N. Singaraju, A. P. Meschanin, Wen-Qing Shen, Jay Roberts, V. Emelianov, A. K. Bhati, D. Keane, Premomoy Ghosh, J. M. Landgraf, A. N. Zubarev, C. F. Moore, F. Retiere, J. Pluta, H. Liu, J. C. Dunlop, Zubayer Ahammed, M. J. LeVine, F. Jia, M. Heinz, N. G. Minaev, Manish Sharma, A. Lebedev, A. Ridiger, Thorsten Sven Kollegger, M. Strikhanov, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, P. Fachini, Lee Stuart Barnby, Souvik Das, A. Chikanian, R. Witt, Vladimir Petrov, A. Stolpovsky, C. Mironov, M. M. de Moura, V. Yu Khodyrev, S. L. Blyth, K. S.F.F. Guimaraes, M. Calderon De La Barca Sanchez, Y. Fisyak, W. J. Llope, M. Botje, J. Sandweiss, Z. Liu, B. K. Srivastava, I. M. Vasilevski, S. Bhardwaj, Boris Hippolyte, C-H. Lee, T. K. Nayak, L. K. Mangotra, M. Pachr, Jaroslav Bielcik, L. Kotchenda, S. Hepplemann, N. Xu, P. Filip, O. Catu, S. Lehocka, R. S. Longacre, Sergey Voloshin, Sergey Timoshenko, Christine Nattrass, R. Manweiler, A. Wetzler, R. Fatemi, K. Krueger, G. D. Westfall, D. K. Mishra, Petr Jákl, H. Long, S. R. Klein, T. Tarnowsky, M. R. Dutta Mazumdar, A. Kocoloski, Q. Li, E. M. Kislov, J. G. Cramer, L. Martin, D. D. Koetke, J. E. Draper, C. J. McClain, J. W. Harris, O. V. Rogachevskiy, A. M. Poskanzer, G. Wang, P. Seyboth, D. L. Olson, Robert E. Tribble, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, W. Christie, A. A. Derevschikov, K. Kang, A. I. Kulikov, M. J. Horner, D. Arkhipkin, Jie Liu, Y. Panebratsev, D. Grosnick, J. Takahashi, V. Kouchpil, J. W. Watson, J. P. Coffin, W. M. Zhang, F. Laue, A. Szanto de Toledo, J. Kapitan, A. Kechechyan, Andre Mischke, Anthony R. Timmins, Andrey Vasiliev, J. Baudot, W. Zhan, A. Bellingeri-Laurikainen, G. Igo, J. Bouchet, S. M. Dogra, R. Picha, M. Kramer, P. Yepes, V. Eckardt, E. Sugarbaker, W. A. Love, V. V. Belaga, Renaud Vernet, H. Z. Huang, S. Vokal, I. K. Yoo, Y. G. Gorbunov, A. Ogawa, P. Sorensen, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, T. W. Henry, A. H. Tang, T. J. Humanic, H. F. Chen, Peter Graham Jones, S. Bekele, J. Millane, Jichao Wang, Shengli Huang, Thomas A. Trainor, W. R. Edwards, C. A. Whitten, T. Pawlak, D. P. Mahapatra, N. Schmitz, N. T. Porile, E. Shahaliev, Janet Elizabeth Seger, W. He, C-Q. Li, Madan M. Aggarwal, A. M. Hoffman, Beomkyu Kim, L. Didenko, D. Thein, M. Cherney, M. L. Miller, J. Kiryluk, R. P. Scharenberg, Christina Markert, Fuqiang Wang, Thomas Michael Cormier, R. Varma, X. Lin, P. Djawotho, A. I. Pavlinov, Andrew Rose, Y. Zhao, H. S. Matis, Yu A. Matulenko, S. Lange, M. Oldenburg, Jana Bielcikova, A. M. Vander Molen, Joseph Adams, S. J. Lindenbaum, D. A. Morozov, F. Liu, J. Porter, B. Stringfellow, M. Sarsour, M. Kopytine, J. Fu, V. A. Nikitin, T. S. McShane, E. G. Judd, W. W. Jacobs, D. Magestro, M. Tokarev, E. Hjort, J. Lauret, Q. H. Xu, B. Haag, K. Schweda, V. I. Yurevich, Z. J. Sun, T. D. Gutierrez, R. D. Majka, R. Lednicky, L. Molnar, J. E. Gonzalez, B. E. Bonner, Gregory Rakness, B. V.K.S. Potukuchi, S. V. Razin, Bedangadas Mohanty, Yu-Gang Ma, Frank Simon, Z. Chajecki, S. Margetis, J. Schambach, H. Jiang, O. D. Tsai, T. D. S. Stanislaus, H. H. Wieman, S. Kabana, T. Dietel, Y. P. Viyogi, Mirko Planinic, Adam Ryszard Kisiel, C. Perkins, H. J. Crawford, Y. Guo, M. Lopez-Noriega, J. H. Chen, Basanta Kumar Nandi, M. Bystersky, J. Speltz, T. Peitzmann, O. G. Grebenyuk, M. DePhillips, Z. Xu, G. Lin, Michal Sumbera, Guo-Liang Ma, V. B. Dunin, Y. Bai, J. Castillo, S. W. Wissink, Y. Zhang, Nikola Poljak, J. Fedorisin, V. A. Okorokov, R. V. Cadman, Morton Kaplan, X. Z. Cai, Sevil Salur, Y. Wang, Jianhong Wu, C. Roy, D. G. Underwood, M. Swanger, A. S. Hirsch, H. Gos, A. Stadnik, P. Chaloupka, J. C. Webb, P. Kravtsov, Peter Martin Jacobs, M. Shao, Y. Lu, S. B. Nurushev, T. J. Hallman, J. Cheng, T. J. M. Symons, I. Selyuzhenkov, J. Reinnarth, J. Sowinski, G. Van Buren, W. T. Waggoner, T. W. Ludlam, J. M. Nelson, Yan Li, W. Peryt, Sukalyan Chattopadhyay, M. S. Ganti, V. Perevoztchikov, K. Filimonov, E. W. Hughes, K. L. Kowalik, Sergey Panitkin, V. Fine, Gerald W Hoffmann, Raimond Snellings, B. D. Anderson, A. Kumar, F. Du, L. V. Nogach, V. I. Kravtsov, Zhenyu Zhang, M. R. Cosentino, F. Benedosso, T. G. Dedovich, T. Sakuma, S. C. Phatak, V. Ghazikhanian, Saskia Mioduszewski, J. L. Romero, A. Shabetai, P. S. Sazhin, E. Finch, H. M. Spinka, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, J. H. Thomas, T. Ullrich, R. Zoulkarneev, L. Ruan, R. L. Ray, E. Potrebenikova, T. Ljubicic, G. S. Averichev, H. Caines, Sudhir Raniwala, S. S. Shimanskiy, D. Relyea, X. L. Wang, C. Zhong, M. van Leeuwen, X. Dong, S. K. Pal, A. Bravar, Matthew J. Anderson, M. S. Daugherity, H. Zhang, L. C. Bland, J. X. Zuo, B. Erazmus, S. LaPointe, A. A. Kuznetsov, Jorn Henning Putschke, L. Liu, A. V. Brandin, S. E. Vigdor, Christian Claude Kuhn, D. Cebra, S. Trentalange, M. Estienne, Yu Melnick, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, M. Potekhin, J. Ulery, H. G. Ritter, Bernd Surrow, O. Barannikova, R. Bellwied, David Lynn, M. J. Russcher, B. I. Abelev, Pawan Kumar Netrakanti, L. Gaillard, C. A. Gagliardi, N. van der Kolk, A. Hamed, J. G. Ma, Marcelo Gameiro Munhoz, D. J. Prindle, M. A. Lisa, and W. J. Dong
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Proton, 010308 nuclear & particles physics, Hadron, Parton, 01 natural sciences, 7. Clean energy, Gluon, Color-glass condensate, Nuclear physics, Pion, Antiproton, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics
Abstract: We determine rapidity asymmetry in the production of charged pions, protons, and antiprotons for large transverse momentum (p{sub T}) for d+Au collisions at {radical}(s{sub NN})=200 GeV. The rapidity asymmetry is defined as the ratio of particle yields at backward rapidity (Au beam direction) to those at forward rapidity (d beam direction). The identified hadrons are measured in the rapidity regions |y
Published: 2007

184. Longitudinal double-spin asymmetry for inclusive jet production in p[over --] + p[over --] collisions at sqrt[s]=200 GeV

Author: 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, S, Baumgart, V V, Belaga, A, Bellingeri-Laurikainen, 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, T P, Burton, M, Bystersky, X Z, Cai, H, Caines, M, Calderón de la Barca Sánchez, 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, 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, W R, Edwards, L G, Efimov, E, Elhalhuli, V, Emelianov, J, Engelage, G, Eppley, B, Erazmus, M, 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, A, Gupta, N, Gupta, B, Haag, T J, Hallman, A, Hamed, J W, Harris, W, He, M, Heinz, T W, Henry, S, Heppelmann, B, Hippolyte, 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, P G, Jones, E G, Judd, S, Kabana, 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, 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, H, 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, L, Martin, H S, Matis, Yu A, Matulenko, T S, McShane, 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, 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, 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, A, Shabetai, E, Shahaliev, M, Shao, M, Sharma, W Q, Shen, S S, Shimanskiy, E P, Sichtermann, F, Simon, R N, Singaraju, M J, Skoby, N, Smirnov, R, Snellings, P, Sorensen, J, Sowinski, J, Speltz, 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, V N, Tram, 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, 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, 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, and J X, Zuo
Abstract: We report a new STAR measurement of the longitudinal double-spin asymmetry A(LL) for inclusive jet production at midrapidity in polarized p + p collisions at a center-of-mass energy of sqrt[s]=200 GeV. The data, which cover jet transverse momenta 5p(T)30 GeV/c, are substantially more precise than previous measurements. They provide significant new constraints on the gluon spin contribution to the nucleon spin through the comparison to predictions derived from one global fit to polarized deep-inelastic scattering measurements.
Published: 2007

185. Partonic Flow andϕ-Meson Production inAu+AuCollisions atsNN=200 GeV

Author: T. Kollegger, A. I. Pavlinov, F. Liu, R. S. Longacre, M. Calderon De La Barca Sanchez, C-Q. Li, Sukalyan Chattopadhyay, R. P. Scharenberg, Christina Markert, P. Seyboth, A. Wetzler, H. S. Matis, M. S. Ganti, T. J. Hallman, F. Laue, R. D. Majka, J. Speltz, J. L. Drachenberg, J. Sowinski, Raghunath Sahoo, W. W. Jacobs, B. I. Abelev, O. Catu, M. DePhillips, Y. P. Lu, V. Perevoztchikov, Lee Stuart Barnby, Sunil Dogra, E. W. Hughes, Michal Sumbera, A. A. P. Suaide, J. Schambach, K. L. Kowalik, A. Bellingeri-Laurikainen, G. Igo, J. Lauret, T. W. Henry, V. Ghazikhanian, R. Witt, Y. Bai, S. Mioduszewski, W. J. Llope, Guo-Liang Ma, M. Oldenburg, Jaroslav Bielcik, R. Lednicky, Anthony Robert Timmins, S. W. Wissink, Y. Zhang, Nikola Poljak, V. Yu Khodyrev, A. Kocoloski, Q. Li, Adam Ryszard Kisiel, Marek Bombara, Z. P. Zhang, Jana Bielcikova, L. Kotchenda, J. E. Draper, M. Heinz, B. Haag, T. S. McShane, A. S. Hirsch, P. M. Jacobs, H. J. Crawford, P. Kravtsov, B. K. Srivastava, J. Bouchet, I. M. Vasilevski, Bedangadas Mohanty, A. N. Zubarev, Jie Liu, J. Engelage, S. Baumgart, R. Fatemi, S. Bhardwaj, Boris Hippolyte, S. U. Chung, W. Christie, A. I. Kulikov, J. Millane, Mirko Planinic, Y. Fisyak, J. L. Romero, M. Bystersky, B. Grube, M. R. Dutta Mazumdar, O. V. Rogachevskiy, W. M. Zhang, Andrey Vasiliev, P. Fachini, K. S.F.F. Guimaraes, S. Lehocka, Premomoy Ghosh, J. M. Landgraf, Y. Li, S. M. Guertin, P. S. Sazhin, E. Finch, Y. Zhao, D. P. Mahapatra, R. S. Hollis, L. K. Mangotra, W. A. Love, R. Manweiler, Y. G. Gorbunov, J. Callner, A. Feng, Jay Roberts, Janet Elizabeth Seger, A. M. Hoffman, M. Strikhanov, I. A. Qattan, Z. Chajecki, D. D. Koetke, B. V. K. S. Potukuchi, V. B. Dunin, V. V. Belaga, M. Cherney, Thomas Michael Cormier, S. Kabana, Y. P. Viyogi, J. Fedorisin, E. G. Judd, Anju Bhasin, A. Shabetai, G. Wang, Q. H. Xu, K. Kang, A. Stadnik, S. L. Blyth, F. Jia, D. J. Hofman, C. A. Whitten, W. He, E. M. Kislov, C. Perkins, J. G. Cramer, A. Szanto de Toledo, A. Lebedev, M. M. de Moura, L. Ruan, Peter Graham Jones, V. Fine, A. Kechechyan, Andre Mischke, G. Odyniec, J. Sandweiss, J. Kapitan, Z. J. Sun, Madan M. Aggarwal, Y. Panebratsev, K. Krueger, Fuqiang Wang, J. Putschke, J. W. Watson, M. Botje, R. N. Singaraju, T. Peitzmann, J. Takahashi, A. P. Meschanin, T. Pawlak, M. A. C. Lamont, D. Grosnick, X. Lin, M. Sarsour, S. B. Nurushev, A. Ogawa, H. F. Chen, Thomas A. Trainor, W. R. Edwards, L. Didenko, M. J. Horner, Russell Richard Betts, A. Rose, N. Schmitz, Jake Y. Chen, E. Shahaliev, D. G. Underwood, G. Lin, V. Kouchpil, Manish Sharma, Edmundo Javier Garcia-Solis, V. I. Yurevich, S. Lange, M. Kopytine, J. Fu, W. L. Zhan, Tai Sakuma, J. Cheng, T. J. M. Symons, J. C. Dunlop, N. T. Porile, R. V. Cadman, M. Tokarev, S. R. Klein, T. Tarnowsky, N. L. Subba, A. M. Vander Molen, Frank Simon, E. Hjort, Y. F. Wu, Qian Yue, Jianhong Wu, O. Barannikova, S. J. Lindenbaum, D. L. Olson, Beomkyu Kim, R. Varma, Vitaly Okorokov, Zubayer Ahammed, M. J. LeVine, Yu A. Matulenko, N. Xu, S. Timoshenko, P. Filip, B. Stringfellow, A. A. Derevschikov, T. D. S. Stanislaus, Bernd Surrow, Debasish Das, A. G. Knospe, L. C. Bland, H. H. Wieman, G. D. Westfall, W. T. Waggoner, Morton Kaplan, Pawan Kumar Netrakanti, X. Z. Cai, J. W. Harris, C. A. Gagliardi, O. G. Grebenyuk, N. van der Kolk, M. Pachr, Petr Jákl, X. M. Sun, P. Sorensen, Z. Z. Xu, M. Shao, G. Van Buren, P. Yepes, V. Eckardt, Renaud Vernet, A. H. Tang, T. W. Ludlam, J. M. Nelson, Nikita Smirnov, Y. G. Ma, W. Peryt, N. G. Minaev, V. Emelianov, A. K. Bhati, D. Keane, R. Stock, L. G. Efimov, C-H. Lee, T. K. Nayak, B. E. Bonner, O. D. Tsai, W. Q. Shen, Sevil Salur, F. Du, Basanta Kumar Nandi, Camelia Mironov, Thomas Dietel, A. M. Poskanzer, T. P. Burton, C. Roy, L. V. Nogach, H. Gos, P. Chaloupka, S. Trentalange, V. I. Kravtsov, L. Liu, I-K. Yoo, M. C. Suarez, P. Kurnadi, M. R. Cosentino, F. Benedosso, M. S. Daugherity, T. G. Dedovich, R.J.M. Snellings, S. C. Phatak, A. Kumar, X. L. Wang, H. Liu, A. Chikanian, S. Margetis, J. Ulery, H. Zhang, H. G. Ritter, M. van Leeuwen, X. Dong, I. Sakrejda, S. K. Pal, T. J. Humanic, D. Arkhipkin, A. Hamed, L. Gaillard, A. Bravar, J. X. Zuo, A. Iordanova, E. P. Sichtermann, M. L. Miller, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, Sadhana Dash, S. LaPointe, T. Ullrich, R. Zoulkarneev, A. A. Kuznetsov, J. S. Wang, E. Potrebenikova, D. Staszak, T. Ljubicic, H. Caines, Sudhir Raniwala, S. S. Shimanskiy, D. Relyea, C. Nepali, A. V. Brandin, J. W. Mitchell, S. E. Vigdor, Christian Claude Kuhn, P. Djawotho, Sergey Voloshin, Y. Wang, J. Baudot, Marcelo Gameiro Munhoz, D. J. Prindle, M. A. Lisa, B. Erazmus, Neeraj Gupta, D. Cebra, M. Estienne, Yu Melnick, H. Bichsel, Y. Zoulkarneeva, C. Zhong, B. D. Anderson, M. Potekhin, J. H. Thomas, David Lynn, M. J. Russcher, J. C. Webb, G. Eppley, J. Pluta, J. G. Ma, Jing Zhou, Rene Bellwied, R. E. Tribble, Gerald W Hoffmann, D. Kettler, G. S. Averichev, H. M. Spinka, H. Z. Huang, S. Vokal, J. Kiryluk, J. H. Chen, Rajarshi Ray, D. A. Morozov, A. Ridiger, Christine Nattrass, S. Heppelmann, L. Martin, C. J. McClain, Ilya Selyuzhenkov, and J. P. Coffin
Subjects: Physics, Particle physics, Meson production, Flow (mathematics), 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, 010306 general physics, 01 natural sciences
Published: 2007

186. Strangelet search in Au+Au collisions atsNN=200GeV

Author: M. Kopytine, J. Fu, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, M. Potekhin, David Lynn, M. J. Russcher, Madan M. Aggarwal, Fuqiang Wang, J. G. Ma, M. Tokarev, O. G. Grebenyuk, Sukalyan Chattopadhyay, W. Christie, B. Erazmus, V. B. Dunin, J. Fedorisin, H. Z. Huang, S. Vokal, J. W. Harris, M. S. Ganti, J. L. Drachenberg, M. Oldenburg, D. Cebra, S. Trentalange, M. Estienne, Yu Melnick, T. D. S. Stanislaus, H. H. Wieman, N. Gupta, A. Feng, Jay Roberts, N. S. Nepali, V. Perevoztchikov, E. W. Hughes, A. N. Vasiliev, A. G. Knospe, Marcelo Gameiro Munhoz, D. J. Prindle, V. I. Yurevich, J. Speltz, M. DePhillips, T. Dietel, M. A. Lisa, L. K. Mangotra, Z. Xu, K. L. Kowalik, A. I. Kulikov, R. Manweiler, R. L. Ray, E. Potrebenikova, Anthony R. Timmins, B. E. Bonner, O. D. Tsai, A. Kumar, Michal Sumbera, G. Eppley, A. M. Poskanzer, J. Zhou, Adam Ryszard Kisiel, H. J. Crawford, Mirko Planinic, A. Chikanian, J. Kiryluk, Frank Simon, V. V. Belaga, D. Staszak, F. Du, I. Selyuzhenkov, T. Ljubicic, C. A. Whitten, M. L. Miller, R. Witt, R. Fatemi, H. Caines, Sudhir Raniwala, K. Krueger, W. M. Zhang, P. Yepes, V. Eckardt, J. Ulery, Y. Bai, D. A. Morozov, A. Kechechyan, Andre Mischke, S. Mioduszewski, S. S. Shimanskiy, Renaud Vernet, D. Relyea, F. Laue, A. Szanto de Toledo, J. Kapitan, A. H. Tang, L. V. Nogach, V. Yu Khodyrev, S. M. Dogra, E. P. Sichtermann, Sevil Salur, Y. Wang, G. Van Buren, S. W. Wissink, Y. Zhang, B. K. Srivastava, I. M. Vasilevski, A. Ridiger, Thorsten Sven Kollegger, J. Balewski, Rashmi Raniwala, K. Kang, H. M. Spinka, Guo-Liang Ma, Jorn Henning Putschke, Claude Andre Pruneau, T. Pawlak, W. He, A. V. Brandin, L. Martin, M. Cherney, Thomas Michael Cormier, M. Sarsour, S. U. Chung, Hengchang Liu, T. Ullrich, R. Zoulkarneev, C-Q. Li, R. P. Scharenberg, Christina Markert, S. Bhardwaj, Boris Hippolyte, V. I. Kravtsov, M. J. Horner, H. G. Ritter, J. Pluta, J. H. Thomas, O. Barannikova, R. Bellwied, S. E. Vigdor, Christian Claude Kuhn, J. C. Dunlop, L. Gaillard, Nikola Poljak, B. V.K.S. Potukuchi, Yu-Gang Ma, X. Lin, H. S. Matis, L. C. Bland, D. Arkhipkin, A. Hamed, S. Lange, Jana Bielcikova, S. J. Lindenbaum, A. Iordanova, C. Roy, P. Kurnadi, T. W. Ludlam, P. Sorensen, J. M. Nelson, D. D. Koetke, J. E. Draper, C. J. McClain, L. Ruan, Peter Graham Jones, X. L. Wang, Bedangadas Mohanty, A. S. Hirsch, J. C. Webb, W. W. Jacobs, C. Zhong, Jie Liu, Yan Li, Zubayer Ahammed, P. Kravtsov, Russell Richard Betts, D. Kettler, M. J. LeVine, W. Peryt, F. Jia, J. Lauret, Bernd Surrow, D. G. Underwood, Zhenyu Zhang, M. R. Cosentino, N. Xu, P. Filip, H. Zhang, J. Callner, R. N. Singaraju, A. P. Meschanin, G. D. Westfall, Janet Elizabeth Seger, H. Gos, P. Chaloupka, A. M. Hoffman, J. P. Coffin, Jichao Wang, R. Lednicky, M. van Leeuwen, X. Dong, N. Schmitz, J. Engelage, A. A. Kuznetsov, Anju Bhasin, I. Sakrejda, S. K. Pal, G. S. Averichev, E. Shahaliev, J. Sowinski, L. Liu, David Jonathan Hofman, A. Bravar, Pawan Kumar Netrakanti, Wen-Qing Shen, B. Szeliga, F. Benedosso, J. H. Chen, M. Bystersky, J. X. Zuo, Petr Jákl, M. C. Suarez, V. Ghazikhanian, Sergey Timoshenko, M. Shao, Manish Sharma, Premomoy Ghosh, T. J. Hallman, J. Cheng, T. J. M. Symons, Sergey Voloshin, J. M. Landgraf, Christine Nattrass, A. Stadnik, Peter Martin Jacobs, Yuanfang Wu, S. LaPointe, M. Strikhanov, T. S. McShane, M. Pachr, R. E. Tribble, R. S. Longacre, L. Didenko, I. K. Yoo, Y. G. Gorbunov, S. L. Blyth, Y. Lu, Marek Bombara, J. Takahashi, M. Calderon De La Barca Sanchez, Basanta Kumar Nandi, Alexandre Shabetai, Debasish Das, Raghunath Sahoo, J. W. Watson, C. A. Gagliardi, N. van der Kolk, J. Sandweiss, M. A.C. Lamont, A. Bellingeri-Laurikainen, O. Catu, G. Igo, A. Ogawa, T. G. Dedovich, H. F. Chen, Thomas A. Trainor, W. R. Edwards, V. A. Okorokov, J. L. Romero, J. Bouchet, S. B. Nurushev, E. G. Judd, A. Kocoloski, Q. Li, A. Lebedev, J. Millane, S. Dash, M. Heinz, Lee Stuart Barnby, M. M. de Moura, Gerald W Hoffmann, Q. Yue, Andrew Rose, T. Sakuma, Y. Zhao, W. J. Llope, M. S. Daugherity, P. S. Sazhin, Jaroslav Bielcik, S. C. Phatak, E. Finch, V. Fine, M. Botje, M. R. Dutta Mazumdar, S. R. Klein, T. Tarnowsky, N. L. Subba, N. G. Minaev, O. V. Rogachevskiy, W. A. Love, D. L. Olson, Raimond Snellings, A. Wetzler, A. M. Vander Molen, Xiangming Sun, E. Hjort, A. A. Derevschikov, A. I. Pavlinov, F. Liu, J. Baudot, W. Zhan, S. Baumgart, Morton Kaplan, R. D. Majka, B. D. Anderson, X. Z. Cai, J. Y. Chen, S. Margetis, J. Schambach, T. P. Burton, P. Djawotho, Q. H. Xu, L. Kotchenda, S. Hepplemann, Z. J. Sun, G. Wang, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, P. Seyboth, D. P. Mahapatra, R. S. Hollis, B. I. Abelev, S. Kabana, Y. P. Viyogi, T. W. Henry, G. Lin, R. V. Cadman, Jianhong Wu, W. T. Waggoner, E. M. Kislov, B. Haag, Y. Panebratsev, D. Grosnick, V. Kouchpil, E. Garcia-Solis, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, C-H. Lee, T. K. Nayak, I. A. Qattan, J. G. Cramer, Z. Chajecki, C. Perkins, A. N. Zubarev, T. Peitzmann, P. Fachini, K. S.F.F. Guimaraes, C. Mironov, Y. Fisyak, S. Lehocka, T. J. Humanic, N. T. Porile, Beomkyu Kim, R. Varma, Yu A. Matulenko, and B. Stringfellow
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Strangelet, Nuclear Theory, Alternating Gradient Synchrotron, 01 natural sciences, Super Proton Synchrotron, Nuclear physics, Strange matter, Metastability, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Beam (structure)
Abstract: We have searched for strangelets in a triggered sample of 61 million central (top 4%) Au+Au collisions at √sNN=200 GeV near beam rapidities at the STAR solenoidal tracker detector at the BNL Relativistic Heavy Ion Collider. We have sensitivity to metastable strangelets with lifetimes of order ⩾0.1 ns, in contrast to limits over ten times longer in BNL Alternating Gradient Synchrotron (AGS) studies and longer still at the CERN Super Proton Synchrotron (SPS). Upper limits of a few 10-6 to 10-7 per central Au+Au collision are set for strangelets with mass ≳30 GeV/c2.
Published: 2007

187. Strange particle production inp+pcollisions ats=200GeV

Author: J. Speltz, M. DePhillips, R. Fatemi, P. Seyboth, Michal Sumbera, T. Kollegger, A. A. P. Suaide, Y. Bai, A. I. Pavlinov, F. Liu, J. Castillo, Jie Liu, S. W. Wissink, R. Picha, V. P. Viyogi, T. D. Gutierrez, Y. Zhang, Sergey Voloshin, L. K. Mangotra, Nikola Poljak, H. M. Spinka, M. Cherney, F. Laue, R. D. Majka, R. Manweiler, Thomas Michael Cormier, J. Sowinski, B. I. Abelev, E. Potrebenikova, E. Sugarbaker, H. Z. Huang, J. E. Draper, Y. Wang, J. Schambach, S. Vokal, A. Kechechyan, Andre Mischke, T. W. Henry, T. Ljubicic, B. Haag, B. V. K. S. Potukuchi, J. Baudot, W. J. Llope, D. Thein, M. Kopytine, J. Fu, H. Caines, Sudhir Raniwala, M. Tokarev, R. Witt, G. Eppley, W. Christie, L. Liu, K. Schweda, T. D. S. Stanislaus, H. H. Wieman, Sukalyan Chattopadhyay, H. Bichsel, A. I. Kulikov, Q. H. Xu, J. Kiryluk, J. H. Chen, J. E. Gonzalez, Bedangadas Mohanty, Rajarshi Ray, S. Mioduszewski, W. M. Zhang, Andrey Vasiliev, S. S. Shimanskiy, D. Relyea, A. Stolpovsky, V. Yu Khodyrev, N. Xu, P. Filip, Y. Zoulkarneeva, C. Zhong, M. R. Cosentino, H. Liu, J. Pluta, Michael Kramer, M. S. Ganti, T. J. Hallman, H. Long, J. Putschke, Debasish Das, Vitaly Okorokov, L. Molnar, R. N. Singaraju, A. Chikanian, Bernd Surrow, J. W. Mitchell, D. A. Morozov, F. Benedosso, G. D. Westfall, J. Porter, A. P. Meschanin, B. K. Srivastava, I. M. Vasilevski, L. Kotchenda, S. Hepplemann, Z. Chajecki, T. S. McShane, Janet Elizabeth Seger, J. W. Watson, M. Potekhin, A. M. Hoffman, M. Bystersky, Y. P. Lu, Rene Bellwied, S. Bhardwaj, A. Ogawa, V. Perevoztchikov, Sunil Dogra, S. Das, A. Gupta, Petr Jákl, K. Filimonov, E. W. Hughes, Anju Bhasin, A. Ridiger, P. Djawotho, Pawan Kumar Netrakanti, Boris Hippolyte, C. Perkins, T. Peitzmann, X. L. Wang, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, K. Kang, T. J. Humanic, J. Ulery, Anthony Robert Timmins, Adam Ryszard Kisiel, D. Arkhipkin, K. L. Kowalik, R. E. Tribble, S. Margetis, C-Q. Li, Y. Fisyak, Gerald W Hoffmann, A. Lebedev, H. G. Ritter, M. M. de Moura, Christine Nattrass, L. Martin, Manish Sharma, M. Calderon De La Barca Sanchez, D. Magestro, A. Hamed, T. G. Dedovich, David Lynn, C. A. Gagliardi, S. Bekele, R.J.M. Snellings, S. V. Razin, M. van Leeuwen, X. Dong, R. P. Scharenberg, Christina Markert, S. K. Pal, H. J. Crawford, M. J. Russcher, M. Botje, A. Szanto de Toledo, J. Kapitan, N. van der Kolk, H. S. Matis, I. K. Yoo, Y. G. Gorbunov, S. Lehocka, A. N. Zubarev, M. Pachr, C. J. McClain, Guo-Liang Ma, R. S. Longacre, S. C. Phatak, A. Kumar, Lee Stuart Barnby, Jay Roberts, T. P. Burton, G. Lin, J. H. Thomas, O. Catu, J. C. Webb, L. Gaillard, A. Bravar, R. V. Cadman, E. P. Sichtermann, W. W. Jacobs, C. Roy, T. Pawlak, J. Lauret, X. Lin, Jaroslav Bielcik, A. Shabetai, G. Wang, Ilya Selyuzhenkov, F. Retiere, A. Wetzler, P. Fachini, S. Kabana, Y. Li, S. M. Guertin, K. Krueger, C. F. Moore, Z. P. Zhang, Jianhong Wu, A. S. Hirsch, M. R. Dutta Mazumdar, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, Sadhana Dash, R. Lednicky, A. M. Vander Molen, K. S.F.F. Guimaraes, A. Kocoloski, P. M. Jacobs, B. D. Anderson, J. R. Adams, E. G. Judd, N. G. Minaev, O. V. Rogachevskiy, Raghunath Sahoo, M. S. Daugherity, P. Kravtsov, J. P. Coffin, Tai Sakuma, J. G. Ma, A. Bellingeri-Laurikainen, Q. Li, G. Igo, M. Heinz, D. P. Mahapatra, F. Du, M. Swanger, Camelia Mironov, Thomas Dietel, J. C. Dunlop, H. Gos, Z. J. Sun, W. A. Love, T. Ullrich, R. Zoulkarneev, N. T. Porile, Zubayer Ahammed, G. S. Averichev, P. Chaloupka, D. G. Underwood, Mirko Planinic, Michael W. Anderson, E. Hjort, M. Oldenburg, J. Bouchet, D. D. Koetke, Beomkyu Kim, L. V. Nogach, S. R. Klein, M. J. LeVine, V. I. Kravtsov, R. Varma, W. T. Waggoner, S. Trentalange, Yu A. Matulenko, T. Tarnowsky, B. Erazmus, C. A. Whitten, L. Ruan, Madan M. Aggarwal, J. Cheng, Fuqiang Wang, T. J. M. Symons, J. Millane, O. Barannikova, D. L. Olson, Gregory Rakness, A. Rose, Y. Zhao, V. Fine, B. Stringfellow, D. K. Mishra, D. Cebra, H. Jiang, S. Lange, A. A. Derevschikov, S. J. Lindenbaum, M. Estienne, E. M. Kislov, Yu Melnick, Basanta Kumar Nandi, V. V. Belaga, J. G. Cramer, S. Timoshenko, F. Jia, W. He, V. B. Dunin, L. C. Bland, A. M. Poskanzer, J. Fedorisin, Peter Graham Jones, Marcelo Gameiro Munhoz, D. J. Prindle, A. Stadnik, V. I. Yurevich, L. Didenko, J. W. Harris, O. G. Grebenyuk, M. A. Lisa, W. J. Dong, W. L. Zhan, P. Yepes, V. Eckardt, Renaud Vernet, A. H. Tang, Frank Simon, M. Sarsour, J. Takahashi, N. Schmitz, E. Shahaliev, V. Ghazikhanian, M. A. C. Lamont, S. B. Nurushev, Jana Bielcikova, J. L. Romero, P. S. Sazhin, E. Finch, P. Sorensen, J. Reinnarth, M. Shao, G. Van Buren, T. W. Ludlam, J. M. Nelson, Y. G. Ma, W. Peryt, Morton Kaplan, X. Z. Cai, Y. Panebratsev, D. Grosnick, V. Kouchpil, Z. Z. Xu, Nikita Smirnov, B. E. Bonner, O. D. Tsai, W. Q. Shen, Sevil Salur, A. A. Kuznetsov, S. Y. Panitkin, A. Tai, G. Sood, J. S. Wang, J. Amonett, V. Emelianov, A. K. Bhati, D. Keane, R. Stock, L. G. Efimov, C-H. Lee, T. K. Nayak, A. V. Brandin, S. E. Vigdor, Christian Claude Kuhn, H. Zhang, J. X. Zuo, M. L. Miller, S. LaPointe, M. J. Horner, J. Engelage, John N. Wood, Premomoy Ghosh, J. M. Landgraf, M. Strikhanov, S. L. Blyth, G. Odyniec, J. Sandweiss, and Z. Liu
Subjects: Quark, Physics, Nuclear and High Energy Physics, Strange quark, Meson, 010308 nuclear & particles physics, Intersecting Storage Rings, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, 01 natural sciences, Super Proton Synchrotron, Baryon, Nuclear physics, 0103 physical sciences, Transverse mass, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We present strange particle spectra and yields measured at midrapidity in $\sqrt{s}=200$ GeV proton-proton ($p+p$) collisions at the BNL Relativistic Heavy Ion Collider (RHIC). We find that the previously observed universal transverse mass (${m}_{T}\ensuremath{\equiv}\sqrt{{{p}_{T}}^{2}+{m}^{2}}$) scaling of hadron production in $p+p$ collisions seems to break down at higher ${m}_{T}$ and that there is a difference in the shape of the ${m}_{T}$ spectrum between baryons and mesons. We observe midrapidity antibaryon to baryon ratios near unity for \ensuremath{\Lambda} and \ensuremath{\Xi} baryons and no dependence of the ratio on transverse momentum, indicating that our data do not yet reach the quark-jet dominated region. We show the dependence of the mean transverse momentum $\ensuremath{\langle}{p}_{T}\ensuremath{\rangle}$ on measured charged particle multiplicity and on particle mass and infer that these trends are consistent with gluon-jet dominated particle production. The data are compared with previous measurements made at the CERN Super Proton Synchrotron and Intersecting Storage Rings and in Fermilab experiments and with leading-order and next-to-leading-order string fragmentation model predictions. We infer from these comparisons that the spectral shapes and particle yields from $p+p$ collisions at RHIC energies have large contributions from gluon jets rather than from quark jets.
Published: 2007

188. Mass, quark-number, andsNNdependence of the second and fourth flow harmonics in ultrarelativistic nucleus-nucleus collisions

Author: T. J. Humanic, N. T. Porile, J. W. Harris, I. A. Qattan, Beomkyu Kim, Z. Chajecki, H. Zhang, R. Varma, Yu A. Matulenko, Anthony R. Timmins, C. Perkins, W. J. Llope, S. R. Klein, T. Peitzmann, Raimond Snellings, B. Stringfellow, P. Yepes, V. Eckardt, Renaud Vernet, A. H. Tang, I. Selyuzhenkov, Souvik Das, W. Christie, R. Witt, J. X. Zuo, J. Reinnarth, J. Engelage, G. Van Buren, A. I. Kulikov, W. M. Zhang, Andrey Vasiliev, L. C. Bland, S. Mioduszewski, S. LaPointe, H. Bichsel, V. Yu Khodyrev, G. Odyniec, N. Schmitz, O. G. Grebenyuk, V. B. Dunin, E. Shahaliev, J. Fedorisin, V. Ghazikhanian, Y. Zoulkarneeva, H. Long, Sergey Voloshin, Christine Nattrass, M. Potekhin, Premomoy Ghosh, J. M. Landgraf, T. S. McShane, A. G. Knospe, Janet Elizabeth Seger, Marek Bombara, J. H. Thomas, A. M. Hoffman, B. D. Anderson, P. Kurnadi, J. L. Romero, A. M. Vander Molen, E. Hjort, T. W. Ludlam, C. Nepali, Gregory Rakness, Jorn Henning Putschke, A. A. Kuznetsov, A. V. Brandin, B. K. Srivastava, I. M. Vasilevski, Bernd Surrow, M. Strikhanov, P. S. Sazhin, E. Finch, S. Baumgart, J. M. Nelson, L. Ruan, L. Liu, David Lynn, M. J. Russcher, A. I. Pavlinov, Zhenyu Zhang, F. Liu, T. Tarnowsky, N. L. Subba, D. L. Olson, F. Laue, A. Szanto de Toledo, S. E. Vigdor, J. Kapitan, Christian Claude Kuhn, M. C. Suarez, Sergey Timoshenko, S. Bhardwaj, D. Kettler, Z. Xu, M. R. Cosentino, G. Lin, Boris Hippolyte, S. L. Blyth, B. I. Abelev, S. M. Dogra, Jie Liu, R. V. Cadman, Yan Li, S. V. Razin, J. Speltz, R. Fatemi, W. Peryt, G. Eppley, X. L. Wang, Pawan Kumar Netrakanti, A. Stolpovsky, L. Kotchenda, S. Hepplemann, T. Pawlak, A. A. Derevschikov, R. S. Longacre, G. S. Averichev, C. Zhong, Jianhong Wu, F. Benedosso, J. Sandweiss, Z. Liu, J. L. Drachenberg, R. D. Majka, S. Kabana, Y. P. Viyogi, M. Kopytine, J. Fu, J. Baudot, C. Mironov, M. Tokarev, S. Margetis, J. Schambach, J. Pluta, X. Lin, J. Callner, Wen-Qing Shen, Y. Fisyak, C. A. Gagliardi, J. Takahashi, K. Krueger, J. G. Ma, E. M. Kislov, N. Gupta, J. G. Cramer, M. DePhillips, J. W. Watson, Anju Bhasin, David Jonathan Hofman, Jay Roberts, N. van der Kolk, A. N. Zubarev, M. van Leeuwen, X. Dong, S. K. Pal, W. T. Waggoner, T. G. Dedovich, S. Lehocka, J. Ulery, T. Sakuma, Debasish Das, Raghunath Sahoo, Russell Richard Betts, A. Ogawa, K. Kang, H. M. Spinka, Sukalyan Chattopadhyay, S. C. Phatak, M. Pachr, H. F. Chen, R. E. Tribble, T. P. Burton, A. Lebedev, A. Stadnik, M. M. de Moura, Peter Martin Jacobs, P. Fachini, H. G. Ritter, K. S.F.F. Guimaraes, M. Botje, Shengli Huang, Thomas A. Trainor, W. R. Edwards, M. Heinz, Lee Stuart Barnby, T. D. S. Stanislaus, D. G. Underwood, A. Bravar, M. J. Horner, Jaroslav Bielcik, C. F. Moore, P. Djawotho, B. Erazmus, Gerald W Hoffmann, Michal Sumbera, T. Dietel, O. Catu, A. Wetzler, M. S. Ganti, O. Barannikova, R. Bellwied, V. V. Belaga, M. A.C. Lamont, S. B. Nurushev, A. Bellingeri-Laurikainen, G. Igo, H. H. Wieman, Mirko Planinic, Y. Panebratsev, M. Shao, T. J. Hallman, J. Cheng, Q. H. Xu, E. Sugarbaker, A. Kocoloski, Z. J. Sun, Q. Li, D. Cebra, A. Kumar, L. Gaillard, S. Dash, R. L. Ray, F. Jia, F. Du, E. Potrebenikova, P. Sorensen, D. Grosnick, V. Kouchpil, M. R. Dutta Mazumdar, O. V. Rogachevskiy, J. C. Dunlop, H. Z. Huang, S. Vokal, T. J. M. Symons, D. Magestro, S. Trentalange, Peter Graham Jones, M. Estienne, Y. Bai, G. Wang, S. M. Guertin, L. V. Nogach, Alexandre Alarcon Do Passo Suaide, Yu Melnick, V. I. Kravtsov, J. Bouchet, P. Seyboth, B. V.K.S. Potukuchi, Zubayer Ahammed, J. Castillo, W. A. Love, M. J. LeVine, S. W. Wissink, W. He, M. Calderón DeLaBarca Sánchez, L. Didenko, C-Q. Li, Y. Zhang, D. Staszak, Yu-Gang Ma, D. P. Mahapatra, Marcelo Gameiro Munhoz, D. J. Prindle, V. Fine, R. P. Scharenberg, Christina Markert, M. Cherney, Nikola Poljak, Y. P. Lu, L. K. Mangotra, H. S. Matis, R. S. Hollis, J. Millane, J. Porter, M. S. Daugherity, Morton Kaplan, Andrew Rose, Madan M. Aggarwal, T. W. Henry, X. Z. Cai, Fuqiang Wang, E. Garcia-Solis, M. Oldenburg, Thomas Michael Cormier, R. Manweiler, M. Sarsour, W. W. Jacobs, M. A. Lisa, V. Perevoztchikov, J. Lauret, R. Lednicky, L. Molnar, Y. Zhao, K. Filimonov, I. K. Yoo, Y. G. Gorbunov, E. W. Hughes, V. I. Yurevich, W. L. Zhan, V. Emelianov, A. K. Bhati, D. Keane, Alexandre Shabetai, A. M. Poskanzer, Nikolai Smirnov, Frank Simon, R. Stock, J. Mitchell, L. G. Efimov, K. L. Kowalik, E. G. Judd, C-H. Lee, T. K. Nayak, B. E. Bonner, O. D. Tsai, Bedangadas Mohanty, R. N. Singaraju, A. P. Meschanin, J. H. Chen, M. Bystersky, Sevil Salur, Y. Wang, A. Kechechyan, Andre Mischke, Guo-Liang Ma, J. Kiryluk, J. Zhou, Adam Ryszard Kisiel, H. J. Crawford, Manish Sharma, D. A. Morozov, A. S. Hirsch, J. C. Webb, A. Ridiger, Thorsten Sven Kollegger, P. Kravtsov, L. Martin, N. G. Minaev, D. D. Koetke, J. E. Draper, C. J. McClain, J. Sowinski, J. P. Coffin, M. L. Miller, N. Xu, P. Filip, G. D. Westfall, Petr Jákl, C. A. Whitten, S. Lange, Jana Bielcikova, S. J. Lindenbaum, H. Liu, A. Chikanian, D. K. Mishra, J. S. Wang, D. Arkhipkin, A. Hamed, S. Bekele, A. Iordanova, Basanta Kumar Nandi, V. A. Okorokov, C. Roy, M. Swanger, H. Gos, P. Chaloupka, T. Ljubicic, H. Caines, Sudhir Raniwala, S. S. Shimanskiy, D. Relyea, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, S. U. Chung, T. Ullrich, R. Zoulkarneev, B. Haag, and K. Schweda
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Elliptic flow, Omega baryon, 01 natural sciences, Omega, Baryon, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, Baryon number, Nuclear Experiment, 010306 general physics
Abstract: We present STAR measurements of the azimuthal anisotropyparameter v_2 for pions, kaons, protons, Lambda, bar Lambda, Xi+bar Xi,and \Omega + bar Omega, along with v_4 for pions, kaons, protons, andLambda + bar Lambda at mid-rapidity for Au+Au collisions at sqrt sNN=62.4and 200 GeV. The v_2(p_T) values for all hadron species at 62.4 GeV aresimilar to those observed in 130 and 200 GeV collisions. For observedkinematic ranges, v_2 values at 62.4, 130, and 200 GeV are as little as10 percent-15 percent larger than those in Pb+Pb collisions at sqrt s NN=17.3 GeV. At intermediate transverse momentum (p_T from 1.5-5 GeV/c),the 62.4 GeV v_2(p_T) and v_4(p_T) values are consistent with thequark-number scaling first observed at 200 GeV. A four-particle cumulantanalysis is used to assess the non-flow contributions to pions andprotons and some indications are found for a smaller non-flowcontribution to protons than pions. Baryon v_2 is larger than anti-baryonv_2 at 62.4 and 200 GeV perhaps indicating either that the initialspatial net-baryon distribution is anisotropic, that the mechanismleading to transport of baryon number from beam- to mid-rapidity enhancesv_2, or that anti-baryon and baryon annihilation is larger in thein-plane direction.
Published: 2007

189. Transverse Momentum and Centrality Dependence of High-pTNonphotonic Electron Suppression inAu+AuCollisions atsNN=200 GeV

Author: S. U. Chung, T. P. Burton, Marcelo Gameiro Munhoz, D. J. Prindle, V. Fine, P. Djawotho, N. Xu, P. Filip, Jake Y. Chen, V. Ghazikhanian, D. Magestro, B. Haag, M. D.S. De La Barca, M. A. Lisa, G. D. Westfall, Marek Bombara, L. Kotchenda, J. L. Romero, I. A. Qattan, Z. Chajecki, Petr Jákl, C. Perkins, T. Peitzmann, H. M. Spinka, F. Laue, A. Szanto de Toledo, J. Kapitan, Z. Xu, G. Lin, T. S. McShane, P. S. Sazhin, R. V. Cadman, E. Finch, Jianhong Wu, R. L. Ray, P. Kurnadi, W. T. Waggoner, J. L. Drachenberg, S. M. Dogra, Madan M. Aggarwal, Fuqiang Wang, E. Potrebenikova, Zhenyu Zhang, T. Pawlak, J. Engelage, M. R. Cosentino, H. Bichsel, G. Odyniec, M. Oldenburg, D. Staszak, Y. Zoulkarneeva, S. Baumgart, F. Benedosso, X. Lin, N. Gupta, A. Feng, M. Potekhin, H. Z. Huang, S. Vokal, Jay Roberts, Premomoy Ghosh, J. M. Landgraf, N. S. Nepali, T. G. Dedovich, H. Zhang, T. Ljubicic, T. Sakuma, David Lynn, S. C. Phatak, Sergey Voloshin, Christine Nattrass, M. J. Russcher, V. I. Yurevich, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, H. Caines, Sudhir Raniwala, B. V.K.S. Potukuchi, Yu-Gang Ma, M. Strikhanov, W. L. Zhan, Frank Simon, N. Schmitz, D. P. Mahapatra, R. S. Hollis, E. Shahaliev, S. S. Shimanskiy, S. Kabana, Y. P. Viyogi, N. G. Minaev, S. L. Blyth, D. Relyea, I. Sakrejda, J. C. Dunlop, M. Kopytine, J. Fu, M. Tokarev, M. Heinz, Lee Stuart Barnby, J. Baudot, J. Sandweiss, A. M. Vander Molen, A. Kumar, F. Du, O. G. Grebenyuk, V. B. Dunin, E. P. Sichtermann, Zubayer Ahammed, T. J. Humanic, J. Fedorisin, M. J. LeVine, Jaroslav Bielcik, J. G. Ma, Jing Zhou, W. J. Llope, L. V. Nogach, J. X. Zuo, J. H. Thomas, David Jonathan Hofman, E. Hjort, Y. F. Wu, A. G. Knospe, V. I. Kravtsov, T. D. S. Stanislaus, H. H. Wieman, J. Balewski, N. T. Porile, Rashmi Raniwala, A. N. Zubarev, M. R. Dutta Mazumdar, Russell Richard Betts, L. Ruan, Claude Andre Pruneau, Qian Yue, B. Erazmus, Adam Ryszard Kisiel, Beomkyu Kim, D. Kettler, D. G. Underwood, O. V. Rogachevskiy, C. A. Whitten, L. K. Mangotra, R. Manweiler, H. J. Crawford, K. Kang, P. Fachini, R. Varma, S. LaPointe, Yu A. Matulenko, G. S. Averichev, J. W. Harris, R. Fatemi, J. Kiryluk, R. Witt, A. M. Poskanzer, M. J. Horner, A. Stadnik, T. Ullrich, D. Cebra, A. Kechechyan, Andre Mischke, W. A. Love, K. S.F.F. Guimaraes, S. Mioduszewski, S. Lange, Jana Bielcikova, B. Stringfellow, S. Trentalange, S. J. Lindenbaum, K. Krueger, R. Zoulkarneev, M. Estienne, V. Yu Khodyrev, Anthony R. Timmins, Yu Melnick, M. Shao, B. K. Srivastava, I. M. Vasilevski, T. J. Hallman, E. M. Kislov, J. Cheng, T. J. M. Symons, W. He, D. A. Morozov, Bernd Surrow, P. Yepes, V. Eckardt, S. Bhardwaj, J. G. Cramer, Boris Hippolyte, M. Cherney, Peter Martin Jacobs, Thomas Michael Cormier, V. V. Belaga, Renaud Vernet, A. H. Tang, Pawan Kumar Netrakanti, M. Sarsour, F. Jia, J. S. Wang, X. L. Wang, A. Ridiger, P. Sorensen, Thorsten Sven Kollegger, C. Zhong, Peter Graham Jones, Jie Liu, C. A. Gagliardi, N. van der Kolk, L. Didenko, S. Heppelmann, M. van Leeuwen, X. Dong, L. Martin, S. K. Pal, S. R. Klein, T. Tarnowsky, N. L. Subba, D. D. Koetke, J. E. Draper, C. J. McClain, D. L. Olson, A. Bravar, S. B. Nurushev, A. A. Derevschikov, J. P. Coffin, I. Selyuzhenkov, G. Van Buren, Jorn Henning Putschke, T. W. Ludlam, A. V. Brandin, J. M. Nelson, Yan Li, W. Peryt, O. Catu, S. E. Vigdor, Christian Claude Kuhn, Bedangadas Mohanty, J. H. Chen, M. Bystersky, I. K. Yoo, Y. G. Gorbunov, Alexandre Shabetai, Morton Kaplan, X. Z. Cai, A. Kocoloski, Q. Li, E. G. Judd, H. Liu, A. Chikanian, J. Speltz, M. DePhillips, S. Dash, Michal Sumbera, D. Arkhipkin, A. Hamed, Y. Bai, A. Iordanova, S. W. Wissink, Y. Zhang, Basanta Kumar Nandi, Nikola Poljak, J. Callner, Wen-Qing Shen, V. A. Okorokov, C. Roy, H. Gos, P. Chaloupka, Sukalyan Chattopadhyay, M. S. Ganti, Y. P. Lu, V. Perevoztchikov, E. W. Hughes, K. L. Kowalik, Guo-Liang Ma, G. Eppley, J. Pluta, A. S. Hirsch, J. C. Webb, P. Kravtsov, M. Pachr, R. E. Tribble, Gerald W Hoffmann, Raimond Snellings, Xiangming Sun, B. D. Anderson, A. I. Pavlinov, F. Liu, R. D. Majka, S. Margetis, J. Schambach, W. Christie, J. Sowinski, A. I. Kulikov, W. M. Zhang, Andrey Vasiliev, Janet Elizabeth Seger, A. M. Hoffman, L. C. Bland, Anju Bhasin, A. A. Kuznetsov, L. Liu, M. L. Miller, A. Lebedev, M. C. Suarez, M. M. de Moura, M. Botje, A. Wetzler, R. N. Singaraju, A. P. Meschanin, C-Q. Li, J. Ulery, H. G. Ritter, R. P. Scharenberg, Christina Markert, O. Barannikova, R. Bellwied, L. Gaillard, H. S. Matis, Manish Sharma, M. S. Daugherity, R. S. Longacre, W. W. Jacobs, C. Mironov, Y. Fisyak, J. Lauret, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, A. Bellingeri-Laurikainen, G. Igo, J. Bouchet, J. Millane, R. Lednicky, S. Lehocka, Andrew Rose, Y. Zhao, G. Wang, P. Seyboth, T. Dietel, Mirko Planinic, B. I. Abelev, T. W. Henry, Sergey Timoshenko, Q. H. Xu, Z. J. Sun, J. Takahashi, J. W. Watson, A. Ogawa, H. F. Chen, Thomas A. Trainor, W. R. Edwards, Y. Panebratsev, D. Grosnick, V. Kouchpil, E. Garcia-Solis, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, C-H. Lee, T. K. Nayak, B. E. Bonner, O. D. Tsai, Sevil Salur, and Y. Wang
Subjects: Nuclear reaction, Physics, Semileptonic decay, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Elementary particle, Electron, 01 natural sciences, law.invention, Nuclear physics, law, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Collider, Lepton
Abstract: The STAR collaboration at the BNL Relativistic Heavy-Ion Collider (RHIC) reports measurements of the inclusive yield of nonphotonic electrons, which arise dominantly from semileptonic decays of heavy flavor mesons, over a broad range of transverse momenta (1.2
Published: 2007

190. Scaling Properties of Hyperon Production inAu+AuCollisions atsNN=200 GeV

Author: J. S. Wang, H. Bichsel, G. Odyniec, D. Thein, Y. Zoulkarneeva, M. Potekhin, M. Kopytine, J. Fu, M. Tokarev, M. S. Daugherity, David Lynn, M. J. Russcher, A. Stolpovsky, M. L. Miller, Z. Xu, G. Lin, L. Kotchenda, S. Hepplemann, J. C. Webb, O. G. Grebenyuk, R. V. Cadman, T. D. S. Stanislaus, A. Hamed, V. B. Dunin, Guo-Liang Ma, J. G. Ma, A. N. Zubarev, Sergey Voloshin, Christine Nattrass, Jianhong Wu, V. A. Nikitin, A. S. Hirsch, C. O. Blyth, H. H. Wieman, P. Kravtsov, Marcelo Gameiro Munhoz, D. J. Prindle, C. Roy, Zhenyu Zhang, M. R. Cosentino, J. Sowinski, P. Fachini, Sukalyan Chattopadhyay, M. S. Ganti, K. S.F.F. Guimaraes, K. Kang, Matthew J. Anderson, Raimond Snellings, V. Perevoztchikov, K. Filimonov, E. W. Hughes, K. L. Kowalik, Sergey Panitkin, M. A. Lisa, W. J. Dong, J. Fedorisin, H. A. Choi, M. J. Horner, L. K. Mangotra, W. Christie, A. I. Kulikov, R. Manweiler, J. E. Gonzalez, L. C. Bland, T. Dietel, W. T. Waggoner, J. H. Thomas, T. G. Dedovich, Bedangadas Mohanty, W. M. Zhang, Andrey Vasiliev, L. Ruan, M. Heinz, Lee Stuart Barnby, S. C. Phatak, V. Fine, E. M. Kislov, J. G. Cramer, N. Schmitz, E. Shahaliev, Janet Elizabeth Seger, S. R. Klein, T. Tarnowsky, D. L. Olson, Adam Ryszard Kisiel, J. Baudot, H. J. Crawford, A. M. Poskanzer, A. A. Kuznetsov, L. Liu, B. Haag, G. S. Averichev, A. Kechechyan, Andre Mischke, O. Barannikova, Souvik Das, R. Witt, Y. Guo, B. V.K.S. Potukuchi, Yu-Gang Ma, Vladimir Petrov, Mirko Planinic, R. Fatemi, M. Swanger, M. Kramer, M. Lopez-Noriega, X. L. Wang, J. H. Chen, T. S. McShane, W. J. Llope, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, D. P. Mahapatra, K. Schweda, G. Sood, A. A. Derevschikov, K. Krueger, C. Zhong, M. Bystersky, B. I. Bezverkhny, A. I. Pavlinov, Jaroslav Bielcik, R. Picha, S. Mioduszewski, F. Liu, M. van Leeuwen, X. Dong, A. Ridiger, Thorsten Sven Kollegger, V. Yu Khodyrev, P. Djawotho, J. Engelage, Y. Lu, I. Selyuzhenkov, Yu Chen, H. Gos, P. Chaloupka, F. Laue, A. Szanto de Toledo, W. He, M. Cherney, J. Kapitan, S. K. Pal, John N. Wood, Z. Chajecki, S. V. Razin, A. Bravar, B. Erazmus, Thomas Michael Cormier, Premomoy Ghosh, R. N. Singaraju, A. P. Meschanin, Sergey Timoshenko, A. M. Vander Molen, C. Perkins, J. M. Landgraf, I. K. Yoo, Y. G. Gorbunov, C. A. Whitten, B. K. Srivastava, I. M. Vasilevski, Wen-Qing Shen, Joseph Adams, M. Sarsour, E. P. Sichtermann, E. Hjort, T. Peitzmann, M. Strikhanov, H. Zhang, D. Cebra, S. Trentalange, M. Estienne, H. Long, S. Kabana, T. D. Gutierrez, J. Ulery, Gregory Rakness, R. D. Majka, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, H. G. Ritter, Yu Melnick, S. M. Dogra, Y. P. Viyogi, D. Magestro, S. L. Blyth, B. D. Anderson, I. Sakrejda, M. R. Dutta Mazumdar, T. Ullrich, O. V. Rogachevskiy, T. Pawlak, W. A. Love, R. Zoulkarneev, R. Bellwied, T. J. Humanic, J. Gans, Manish Sharma, J. Reinnarth, G. Van Buren, L. Gaillard, E. G. Judd, S. Bhardwaj, S. Margetis, J. Schambach, Anju Bhasin, Jie Liu, Christina Markert, J. Sandweiss, Z. Liu, A. Shabetai, Boris Hippolyte, J. X. Zuo, R. L. Ray, E. Potrebenikova, J. Takahashi, R. S. Longacre, G. Eppley, H. Jiang, J. W. Watson, S. LaPointe, N. T. Porile, H. M. Spinka, T. Ljubicic, Madan M. Aggarwal, Fuqiang Wang, N. Gupta, L. Martin, S. Lange, Jana Bielcikova, S. J. Lindenbaum, Debasish Das, Raghunath Sahoo, H. Caines, Sudhir Raniwala, M. A.C. Lamont, M. Oldenburg, Beomkyu Kim, A. Kumar, Jorn Henning Putschke, A. Bellingeri-Laurikainen, G. Igo, J. Pluta, S. S. Shimanskiy, D. Relyea, A. V. Brandin, Basanta Kumar Nandi, A. Ogawa, A. Lebedev, F. Du, M. M. de Moura, Jay Roberts, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, R. Varma, J. Bouchet, D. G. Underwood, S. E. Vigdor, L. V. Nogach, Yu A. Matulenko, Christian Claude Kuhn, V. V. Belaga, V. A. Okorokov, C-Q. Li, M. Pachr, R. E. Tribble, V. I. Kravtsov, M. Botje, V. I. Yurevich, D. D. Koetke, B. Stringfellow, Andrew Rose, Y. Zhao, C. F. Moore, J. E. Draper, R. P. Scharenberg, T. W. Ludlam, C. J. McClain, F. Jia, H. Liu, A. Chikanian, Gerald W Hoffmann, W. L. Zhan, H. S. Matis, P. Sorensen, A. Wetzler, Peter Graham Jones, J. Porter, Frank Simon, W. W. Jacobs, J. M. Nelson, M. Calderon De La Barca Sanchez, D. K. Mishra, M. Shao, J. C. Dunlop, J. Speltz, J. Lauret, L. Didenko, M. DePhillips, D. Arkhipkin, T. J. Hallman, J. Cheng, S. Bekele, J. P. Coffin, Zubayer Ahammed, R. Lednicky, L. Molnar, O. Catu, M. J. LeVine, N. Xu, P. Filip, T. J. M. Symons, Michal Sumbera, G. D. Westfall, Q. Li, Yan Li, Y. Bai, W. Peryt, V. Ghazikhanian, Petr Jákl, J. Castillo, S. W. Wissink, Y. Zhang, Nikola Poljak, J. L. Romero, J. W. Harris, F. Retiere, P. S. Sazhin, Bernd Surrow, N. G. Minaev, E. Finch, Anthony R. Timmins, Pawan Kumar Netrakanti, P. Yepes, V. Eckardt, Renaud Vernet, A. H. Tang, C. A. Gagliardi, N. van der Kolk, A. Stadnik, Peter Martin Jacobs, Gang Wang, E. Sugarbaker, H. Z. Huang, S. Vokal, S. B. Nurushev, J. Kiryluk, D. A. Morozov, Morton Kaplan, X. Z. Cai, P. Seyboth, B. E. Bonner, O. D. Tsai, T. W. Henry, C. Mironov, Y. Fisyak, S. Lehocka, Q. H. Xu, Z. J. Sun, Sevil Salur, Y. Wang, Y. Panebratsev, D. Grosnick, V. Kouchpil, A. Tai, J. Amonett, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, C-H. Lee, and T. K. Nayak
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hyperon, General Physics and Astronomy, Lambda baryon, Omega baryon, Lambda, 01 natural sciences, Xi baryon, Baryon, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Nucleon
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 sqrt[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
Published: 2007

191. Anti-Hyperon polarization in high energy pp collisions with polarized beams

Author: Shan-shan Zhou, Ye Chen, Zuo-tang Liang, Q. H. Xu, and E. P. Sichtermann
Subjects: Quark, Physics, Nuclear and High Energy Physics, media_common.quotation_subject, High Energy Physics::Phenomenology, Nuclear Theory, FOS: Physical sciences, Elliptical polarization, Polarization (waves), Lambda, Asymmetry, Nuclear physics, High Energy Physics - Phenomenology, Distribution function, High Energy Physics - Phenomenology (hep-ph), Quantum electrodynamics, Degree of polarization, High Energy Physics::Experiment, Nucleon, Nuclear Experiment, media_common
Abstract: We study the longitudinal polarization of the Sigma_bar and Xi_bar anti-hyperons in polarized high energy pp collisions at large transverse momenta, extending a recent study for the Lambda_bar anti-hyperon. We make predictions by using different parametrizations of the polarized parton densities and models for the polarized fragmentation functions. Similar to the Lambda_bar polarization, the Xi_bar0 and Xi_bar+ polarizations are found to be sensitive to the polarized anti-strange sea in the nucleon. The Sigma_bar- and Sigma_bar+ polarizations show sensitivity to the light sea quark polarizations, \Delta \bar u(x) and \Delta \bar d(x), and their asymmetry., Comment: 17 pages, 9 figures,version to appear in PRD
Published: 2007
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192. Development of a forward calorimeter system for the STAR experiment

Author: W. Christie, Samuel Heppelmann, S. Fazio, E. C. Aschenauer, A Kisilev, G Visser, O. D. Tsai, Hui Huang, M M Mondal, M. Sergeeva, E. P. Sichtermann, S. Trentalange, X Liu, William Jacobs, L. E. Dunkelberger, C. A. Gagliardi, Nilay Shah, Y X Pan, G. Igo, K. D. Landry, and S. W. Wissink
Subjects: Physics, History, Scintillation, Physics::Instrumentation and Detectors, Detector, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, Particle detector, Computer Science Applications, Education, Calorimeter, Condensed Matter::Soft Condensed Matter, Nuclear physics, Scintillation counter, Measuring instrument, Physics::Accelerator Physics, High Energy Physics::Experiment, Relativistic Heavy Ion Collider, STAR detector
Abstract: We present results of an R&D program to develop a forward calorimeter system (FCS) for the STAR experiment at the Relativistic Heavy Ion Collider at BNL. The FCS is a very compact, compensated, finely granulated, high resolution calorimeter system being developed for p+p and p+A program at RHIC. The FCS prototype consists of both electromagnetic and hadron calorimeters. The electromagnetic portion of the detector is constructed with W powder and scintillation fibers. The hadronic calorimeter is a traditional Pb/Sc-plate sandwich design. Both calorimeters were readout with Hamamatsu MPPCs. A full- scale prototype of the FCS was tested with a beam at FNAL in March 2014. We present details of the design, construction technique and performance of the FCS prototype during the test run at FNAL.
Published: 2015

193. Longitudinal Double-Spin Asymmetry and Cross Section for Inclusive Jet Production in Polarized Proton Collisions ats=200 GeV

Author: V. Ghazikhanian, M. Calderon De La Barca Sanchez, Marcelo Gameiro Munhoz, D. J. Prindle, J. C. Dunlop, J. L. Romero, G. Wang, C. Roy, P. S. Sazhin, E. Finch, O. Catu, P. Seyboth, Zubayer Ahammed, W. J. Llope, A. M. Vander Molen, E. Hjort, Gregory Rakness, D. Thein, Sergey Timoshenko, J. E. Gonzalez, R. S. Longacre, A. Kocoloski, Q. Li, S. Dash, A. Stadnik, Peter Martin Jacobs, Bedangadas Mohanty, M. J. LeVine, A. Ridiger, Y. Lu, Guo-Liang Ma, M. Swanger, M. Kopytine, J. Fu, N. Schmitz, E. Shahaliev, Thorsten Sven Kollegger, M. A. Lisa, W. J. Dong, H. Gos, T. P. Burton, T. S. McShane, P. Chaloupka, K. Kang, B. Haag, S. B. Nurushev, Debasish Das, Raghunath Sahoo, J. H. Thomas, J. Takahashi, R. L. Ray, E. Potrebenikova, H. Long, M. Tokarev, M. A.C. Lamont, A. Stolpovsky, A. Bellingeri-Laurikainen, M. J. Horner, A. S. Hirsch, J. C. Webb, J. W. Watson, P. Kravtsov, L. Kotchenda, S. Hepplemann, A. Ogawa, G. Igo, V. Fine, L. Martin, R. Fatemi, Wen-Qing Shen, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, L. Ruan, J. Bouchet, J. H. Chen, T. Ljubicic, H. Jiang, L. C. Bland, K. Krueger, D. D. Koetke, J. E. Draper, C. J. McClain, M. Bystersky, N. Xu, J. Speltz, D. Magestro, J. Sowinski, J. X. Zuo, C-Q. Li, F. Laue, A. Szanto de Toledo, S. V. Razin, P. Filip, Basanta Kumar Nandi, J. Millane, H. Caines, Sudhir Raniwala, M. DePhillips, R. Picha, J. Kapitan, Z. Chajecki, S. M. Dogra, Anju Bhasin, R. P. Scharenberg, Christina Markert, H. S. Matis, B. Erazmus, Q. H. Xu, Andrew Rose, V. A. Okorokov, Y. Zhao, J. W. Harris, T. D. S. Stanislaus, J. P. Coffin, Michal Sumbera, J. Porter, A. H. Tang, Sukalyan Chattopadhyay, T. Pawlak, Z. J. Sun, M. S. Ganti, W. W. Jacobs, S. S. Shimanskiy, J. Lauret, G. S. Averichev, Morton Kaplan, Souvik Das, A. Chikanian, D. Relyea, R. Witt, G. Sood, X. Z. Cai, W. He, H. H. Wieman, Anthony R. Timmins, C. Perkins, I. Selyuzhenkov, X. Lin, Y. Bai, E. Sugarbaker, R. Lednicky, L. Molnar, J. Reinnarth, D. K. Mishra, S. Kabana, A. A. Kuznetsov, P. Yepes, V. Eckardt, A. Shabetai, D. Cebra, M. Cherney, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, H. Z. Huang, G. Van Buren, Renaud Vernet, Thomas Michael Cormier, L. Liu, S. Vokal, J. Engelage, B. V.K.S. Potukuchi, G. D. Westfall, D. Arkhipkin, Yu-Gang Ma, T. Peitzmann, Y. P. Viyogi, V. Perevoztchikov, John N. Wood, S. Trentalange, J. Castillo, E. W. Hughes, S. Mioduszewski, S. W. Wissink, M. Estienne, V. Yu Khodyrev, Y. Zhang, A. Lebedev, Z. Xu, G. Lin, R. N. Singaraju, M. Sarsour, S. Bekele, X. L. Wang, A. P. Meschanin, L. K. Mangotra, T. Dietel, T. J. Humanic, M. M. de Moura, K. L. Kowalik, C. Zhong, Chang-Hwan Lee, T. W. Ludlam, J. M. Nelson, Premomoy Ghosh, Mirko Planinic, Sergey Panitkin, D. P. Mahapatra, Nikola Poljak, Sergey Voloshin, Yu Melnick, Christine Nattrass, Jie Liu, R. V. Cadman, R. Manweiler, J. M. Landgraf, Jianhong Wu, A. Kumar, F. Du, Yan Li, W. Peryt, Y. Panebratsev, M. Botje, B. K. Srivastava, I. M. Vasilevski, T. W. Henry, M. van Leeuwen, X. Dong, Petr Jákl, C. Mironov, Y. Fisyak, Manish Sharma, O. G. Grebenyuk, J. Kiryluk, N. T. Porile, V. B. Dunin, M. Strikhanov, J. Fedorisin, L. V. Nogach, M. L. Miller, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, S. Bhardwaj, Boris Hippolyte, A. M. Poskanzer, S. Lehocka, H. M. Spinka, S. K. Pal, A. Bravar, S. L. Blyth, D. Grosnick, V. Kouchpil, V. I. Kravtsov, A. Wetzler, D. A. Morozov, P. Djawotho, A. Kechechyan, Andre Mischke, E. P. Sichtermann, J. Sandweiss, Z. Liu, Beomkyu Kim, S. R. Klein, T. Tarnowsky, Zhenyu Zhang, M. R. Cosentino, N. Gupta, M. Potekhin, J. Baudot, Jay Roberts, M. S. Daugherity, I. K. Yoo, Y. G. Gorbunov, D. G. Underwood, J. Balewski, W. T. Waggoner, Rashmi Raniwala, F. Benedosso, H. Zhang, Claude Andre Pruneau, Adam Ryszard Kisiel, R. Varma, D. L. Olson, M. Shao, W. Christie, A. I. Kulikov, David Lynn, T. J. Hallman, J. Cheng, T. J. M. Symons, M. J. Russcher, J. Ulery, T. Ullrich, H. J. Crawford, E. G. Judd, T. G. Dedovich, T. Sakuma, W. M. Zhang, Andrey Vasiliev, R. Zoulkarneev, H. G. Ritter, Yu A. Matulenko, O. Barannikova, R. Bellwied, S. C. Phatak, L. Gaillard, Janet Elizabeth Seger, B. Stringfellow, A. M. Hoffman, A. A. Derevschikov, A. Hamed, J. G. Ma, A. I. Pavlinov, F. Liu, N. G. Minaev, Matthew J. Anderson, E. M. Kislov, V. V. Belaga, Hong Liu, T. D. Gutierrez, J. G. Cramer, R. D. Majka, S. Margetis, J. Schambach, C. F. Moore, C. A. Whitten, F. Jia, P. Sorensen, M. Kramer, A. Tai, S. Lange, Jana Bielcikova, S. J. Lindenbaum, Peter Graham Jones, J. Amonett, L. Didenko, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, T. K. Nayak, B. E. Bonner, O. D. Tsai, A. N. Zubarev, P. Fachini, K. S.F.F. Guimaraes, Sevil Salur, Y. Wang, Bernd Surrow, B. I. Abelev, Pawan Kumar Netrakanti, C. A. Gagliardi, N. van der Kolk, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, M. R. Dutta Mazumdar, O. V. Rogachevskiy, W. A. Love, Madan M. Aggarwal, Fuqiang Wang, M. Oldenburg, V. I. Yurevich, W. L. Zhan, Frank Simon, S. LaPointe, J. S. Wang, G. Eppley, Jorn Henning Putschke, A. V. Brandin, J. Pluta, S. E. Vigdor, Christian Claude Kuhn, M. Pachr, R. E. Tribble, Gerald W Hoffmann, Raimond Snellings, and B. D. Anderson
Subjects: Quantum chromodynamics, Physics, Particle physics, Proton, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Nuclear Theory, General Physics and Astronomy, Perturbative QCD, Polarization (waves), 01 natural sciences, Asymmetry, Gluon, Nuclear physics, Transverse plane, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon, media_common
Abstract: We report a measurement of the longitudinal double-spin asymmetry A(LL) and the differential cross section for inclusive midrapidity jet production in polarized proton collisions at s=200 GeV. The cross section data cover transverse momenta 5 < p(T)< 50 GeV/c and agree with next-to-leading order perturbative QCD evaluations. The A(LL) data cover 5 < p(T)< 17 GeV/c and disfavor at 98% C.L. maximal positive gluon polarization in the polarized nucleon.
Published: 2006

194. Neutral kaon interferometry in Au+Au collisions atsNN=200GeV

Author: Sergey Timoshenko, T. J. Humanic, N. T. Porile, H. Zhang, J. W. Harris, Beomkyu Kim, G. Wang, R. Varma, Yu A. Matulenko, T. P. Burton, J. Takahashi, J. W. Watson, B. Stringfellow, P. Seyboth, M. L. Miller, J. X. Zuo, A. Ogawa, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, T. S. McShane, E. M. Kislov, S. V. Razin, J. G. Cramer, A. Stolpovsky, S. Kabana, Y. P. Viyogi, Anthony R. Timmins, L. Kotchenda, S. Hepplemann, M. Kramer, G. Eppley, S. LaPointe, K. Kang, D. Magestro, R. Fatemi, Zhenyu Zhang, P. Yepes, V. Eckardt, A. Stadnik, M. J. Horner, M. R. Cosentino, T. Dietel, B. Haag, K. Krueger, Peter Martin Jacobs, T. W. Henry, F. Laue, A. Szanto de Toledo, J. Kapitan, F. Benedosso, S. M. Dogra, A. M. Vander Molen, Y. Lu, Mirko Planinic, K. Schweda, J. Pluta, Renaud Vernet, E. Hjort, N. Gupta, W. J. Llope, R. Picha, J. Speltz, S. B. Nurushev, Gregory Rakness, T. G. Dedovich, T. Sakuma, S. C. Phatak, M. S. Daugherity, A. H. Tang, H. Liu, A. Chikanian, T. Pawlak, S. Chattopadhyay, Sergey Voloshin, Christine Nattrass, Jay Roberts, W. He, M. Cherney, J. S. Wang, S. M. Guertin, L. C. Bland, Alexandre Alarcon Do Passo Suaide, Z. Chajecki, M. S. Ganti, J. Engelage, A. Kumar, F. Du, X. Lin, I. Selyuzhenkov, Thomas Michael Cormier, John N. Wood, C-Q. Li, J. Reinnarth, G. Van Buren, M. Sarsour, H. Long, M. Heinz, Lee Stuart Barnby, L. V. Nogach, R. P. Scharenberg, Christina Markert, M. DePhillips, Michal Sumbera, V. I. Kravtsov, D. P. Mahapatra, Premomoy Ghosh, J. M. Landgraf, A. A. Kuznetsov, M. Pachr, L. Liu, H. S. Matis, V. Fine, D. K. Mishra, C. Perkins, R. E. Tribble, T. W. Ludlam, Jaroslav Bielcik, C. F. Moore, J. Porter, D. G. Underwood, T. Peitzmann, J. Baudot, V. Perevoztchikov, J. M. Nelson, Gerald W Hoffmann, K. Filimonov, E. W. Hughes, W. W. Jacobs, M. Strikhanov, Y. Bai, D. Arkhipkin, S. Bekele, Z. Xu, G. Lin, Jie Liu, Yan Li, W. Peryt, Jorn Henning Putschke, M. R. Dutta Mazumdar, O. V. Rogachevskiy, J. Lauret, Wen-Qing Shen, K. L. Kowalik, J. Castillo, R. V. Cadman, S. W. Wissink, Sergey Panitkin, A. V. Brandin, Y. Zhang, N. Schmitz, Raimond Snellings, J. Ulery, S. L. Blyth, E. Shahaliev, Q. H. Xu, Jianhong Wu, M. Shao, Guo-Liang Ma, Z. J. Sun, J. Sandweiss, Z. Liu, R. Lednicky, L. Molnar, H. G. Ritter, V. Ghazikhanian, Nikola Poljak, T. J. Hallman, J. Cheng, W. A. Love, S. E. Vigdor, Christian Claude Kuhn, O. Barannikova, R. Bellwied, H. Jiang, L. Gaillard, T. J. M. Symons, M. Calderon De La Barca Sanchez, J. L. Romero, Adam Ryszard Kisiel, P. S. Sazhin, E. Finch, H. J. Crawford, A. S. Hirsch, J. C. Webb, P. Kravtsov, B. D. Anderson, Souvik Das, O. Catu, R. Witt, Morton Kaplan, X. Z. Cai, P. Djawotho, Bernd Surrow, Basanta Kumar Nandi, A. Kocoloski, Q. Li, W. T. Waggoner, J. Sowinski, B. I. Abelev, A. Shabetai, Pawan Kumar Netrakanti, I. K. Yoo, Y. G. Gorbunov, S. Mioduszewski, V. A. Okorokov, S. Dash, V. Yu Khodyrev, C. A. Gagliardi, C. Roy, N. van der Kolk, Madan M. Aggarwal, Fuqiang Wang, E. G. Judd, O. G. Grebenyuk, V. B. Dunin, M. Oldenburg, C. Mironov, J. Fedorisin, B. K. Srivastava, I. M. Vasilevski, M. Swanger, H. Gos, B. V.K.S. Potukuchi, J. E. Gonzalez, Y. Fisyak, Yu-Gang Ma, P. Chaloupka, Bedangadas Mohanty, S. Bhardwaj, V. I. Yurevich, W. L. Zhan, Boris Hippolyte, J. C. Dunlop, S. Lehocka, J. H. Chen, Frank Simon, M. Bystersky, Zubayer Ahammed, M. J. LeVine, D. Thein, M. Kopytine, J. Fu, M. Tokarev, T. D. S. Stanislaus, H. H. Wieman, L. K. Mangotra, R. Manweiler, A. M. Poskanzer, V. V. Belaga, C. A. Whitten, A. Kechechyan, Andre Mischke, S. Lange, Jana Bielcikova, S. J. Lindenbaum, N. Xu, P. Filip, G. D. Westfall, Petr Jákl, F. Retiere, N. G. Minaev, F. Jia, P. Sorensen, Peter Graham Jones, L. Didenko, R. S. Longacre, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, A. Bellingeri-Laurikainen, G. Igo, J. Bouchet, J. Millane, S. R. Klein, Andrew Rose, T. Tarnowsky, D. L. Olson, Y. Zhao, G. Sood, R. N. Singaraju, A. P. Meschanin, B. E. Bonner, A. A. Derevschikov, O. D. Tsai, Manish Sharma, A. N. Zubarev, Sevil Salur, Y. Wang, Y. Panebratsev, P. Fachini, D. Grosnick, V. Kouchpil, K. S.F.F. Guimaraes, H. M. Spinka, A. Tai, J. Amonett, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, J. Mitchell, L. G. Efimov, C-H. Lee, T. K. Nayak, Matthew J. Anderson, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, A. Ridiger, Thorsten Sven Kollegger, T. Ullrich, L. Martin, R. Zoulkarneev, D. D. Koetke, J. E. Draper, C. J. McClain, J. P. Coffin, E. Sugarbaker, H. Z. Huang, S. Vokal, X. L. Wang, C. Zhong, M. van Leeuwen, X. Dong, S. K. Pal, A. Bravar, J. Kiryluk, R. L. Ray, E. Potrebenikova, D. A. Morozov, J. H. Thomas, T. Ljubicic, L. Ruan, G. S. Averichev, H. Caines, Sudhir Raniwala, S. S. Shimanskiy, D. Relyea, W. Christie, A. I. Kulikov, W. M. Zhang, Andrey Vasiliev, Janet Elizabeth Seger, A. M. Hoffman, A. I. Pavlinov, F. Liu, T. D. Gutierrez, B. Erazmus, D. Cebra, S. Trentalange, M. Estienne, Yu Melnick, R. D. Majka, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, S. Margetis, J. Schambach, Anju Bhasin, M. Potekhin, A. Lebedev, M. M. de Moura, M. Botje, David Lynn, A. Wetzler, M. J. Russcher, A. Hamed, J. G. Ma, Marcelo Gameiro Munhoz, D. J. Prindle, M. A. Lisa, and W. J. Dong
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Strong interaction, Lattice QCD, Bose–Einstein correlations, Lambda, 01 natural sciences, Nuclear physics, Interferometry, Pion, Correlation function, 0103 physical sciences, Transverse mass, 010306 general physics
Abstract: We present the first statistically meaningful results fromtwo-K0s interferometry in heavy-ion collisions. A model that takes theeffect of the strong interaction into account has been used to fit themeasured correlation function. The effects of single and coupled channelwere explored. At the mean transverse mass m_T = 1.07 GeV, we obtain thevalues R = 4.09 +- 0.46 (stat.) +- 0.31 (sys) fm and lambda = 0.92 +-0.23 (stat) +- 0.13 (sys), where R and lambda are the invariant radiusand chaoticity parameters respectively. The results are qualitativelyconsistent with m_T systematics established with pions in a scenariocharacterized by a strong collective flow.
Published: 2006

195. Identified Baryon and Meson Distributions at Large Transverse Momenta fromAu+AuCollisions atsNN=200 GeV

Author: A. Tai, E. P. Sichtermann, J. Balewski, Rashmi Raniwala, C. A. Whitten, G. Sood, J. Engelage, Claude Andre Pruneau, T. Ullrich, T. P. Burton, Z. Xu, G. Lin, R. Zoulkarneev, A. Stolpovsky, V. Emelianov, A. K. Bhati, D. Keane, J. Speltz, S. Lange, John N. Wood, R. L. Ray, M. DePhillips, E. Potrebenikova, L. Kotchenda, S. Hepplemann, Nikolai Smirnov, R. Stock, X. L. Wang, M. Heinz, Lee Stuart Barnby, C. Zhong, J. Mitchell, L. G. Efimov, M. van Leeuwen, X. Dong, S. K. Pal, R. V. Cadman, A. Bravar, Jana Bielcikova, T. Ljubicic, S. J. Lindenbaum, Premomoy Ghosh, Jorn Henning Putschke, H. Caines, Sudhir Raniwala, J. M. Landgraf, S. S. Shimanskiy, D. Relyea, A. V. Brandin, W. J. Llope, Michal Sumbera, O. G. Grebenyuk, C-H. Lee, T. K. Nayak, Jaroslav Bielcik, Raimond Snellings, L. K. Mangotra, Jianhong Wu, R. N. Singaraju, V. B. Dunin, Marcelo Gameiro Munhoz, D. J. Prindle, M. Strikhanov, S. L. Blyth, Y. Bai, S. E. Vigdor, Christian Claude Kuhn, H. Long, A. P. Meschanin, E. Sugarbaker, J. Castillo, S. W. Wissink, Y. Zhang, S. Vokal, J. Sandweiss, Z. Liu, M. R. Dutta Mazumdar, R. Manweiler, N. Xu, P. Filip, Y. Panebratsev, D. Grosnick, V. Kouchpil, J. Fedorisin, M. A. Lisa, O. V. Rogachevskiy, Nikola Poljak, R. Fatemi, Hao-Ze Chen, M. Calderon De La Barca Sanchez, G. D. Westfall, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, A. M. Poskanzer, D. Magestro, W. J. Dong, K. Krueger, W. A. Love, J. Kiryluk, Manish Sharma, D. P. Mahapatra, W. T. Waggoner, W. Christie, A. I. Kulikov, K. Kang, H. M. Spinka, B. E. Bonner, W. M. Zhang, O. D. Tsai, Yinina Ma, Andrey Vasiliev, A. M. Vander Molen, M. Shao, Petr Jákl, J. Ulery, D. A. Morozov, M. J. Horner, A. Ridiger, B. D. Anderson, Madan M. Aggarwal, Thorsten Sven Kollegger, Fuqiang Wang, A. Kechechyan, Andre Mischke, B. Haag, R. Picha, Q. H. Xu, R. S. Longacre, H. G. Ritter, M. Oldenburg, E. Hjort, A. N. Zubarev, O. Catu, Zhenyu Zhang, L. Martin, F. Laue, A. Szanto de Toledo, J. Kapitan, H. Zhang, I. K. Yoo, Y. G. Gorbunov, Debasish Das, Raghunath Sahoo, G. Eppley, Janet Elizabeth Seger, Gregory Rakness, A. M. Hoffman, O. Barannikova, R. Bellwied, B. V.K.S. Potukuchi, B. Erazmus, T. Dietel, Sergey Voloshin, Christine Nattrass, W. He, S. M. Dogra, M. A.C. Lamont, A. Bellingeri-Laurikainen, D. D. Koetke, G. Igo, J. E. Draper, C. J. McClain, V. I. Yurevich, Xu Cai, J. Pluta, N. Gupta, L. Gaillard, Z. Chajecki, V. Y. Khodyrev, M. Cherney, M. R. Cosentino, J. Bouchet, Frank Simon, Sevil Salur, Y. Wang, D. Thein, A. I. Pavlinov, P. Fachini, Thomas Michael Cormier, C. Perkins, J. P. Coffin, Jie Liu, T. Pawlak, F. Liu, J. Millane, Vitaly Okorokov, Mirko Planinic, V. Ghazikhanian, D. Cebra, K. S.F.F. Guimaraes, A. Kocoloski, M. Sarsour, T. Peitzmann, Q. Li, E. G. Judd, Jay Roberts, Bernd Surrow, M. Pachr, M. Kopytine, J. Fu, Z. J. Sun, S. Trentalange, M. Estienne, S. Dash, X. Lin, Matthew J. Anderson, F. Benedosso, J. L. Romero, B. I. Abelev, Pawan Kumar Netrakanti, J. X. Zuo, R. E. Tribble, N. G. Minaev, M. Tokarev, Yu Melnick, T. D. Gutierrez, N. S. Nepali, P. S. Sazhin, J. H. Thomas, J. E. Gonzalez, R. D. Majka, E. Finch, H. M. Liu, Andrew Rose, Y. Zhao, C. A. Gagliardi, Gerald W Hoffmann, H. Bichsel, G. Odyniec, M. S. Daugherity, J. Baudot, W. Zhan, Y. Zoulkarneeva, M. L. Miller, Bedangadas Mohanty, L. Ruan, N. van der Kolk, S. Margetis, J. Schambach, M. Potekhin, S. R. Klein, T. Tarnowsky, N. L. Subba, Anju Bhasin, D. G. Underwood, P. Djawotho, S. LaPointe, L. C. Bland, D. L. Olson, T. W. Henry, Morton Kaplan, T. D. S. Stanislaus, A. Lebedev, M. M. de Moura, G. Wang, David Lynn, M. J. Russcher, G. S. Averichev, N. Schmitz, H. H. Wieman, E. Shahaliev, M. Botje, A. A. Derevschikov, A. A. Kuznetsov, J. H. Chen, M. Bystersky, T. J. Hallman, L. Liu, V. V. Belaga, P. Seyboth, Sergey Timoshenko, T. J. M. Symons, A. Wetzler, C. F. Moore, Adam Ryszard Kisiel, P. Sorensen, T. G. Dedovich, Peter Graham Jones, A. Hamed, Wen-Qing Shen, H. J. Crawford, Jichao Wang, A. Stadnik, Peter Martin Jacobs, Guo-Liang Ma, L. Didenko, T. Sakuma, Y. Lu, J. G. Ma, S. B. Nurushev, S. C. Phatak, J. Takahashi, J. W. Watson, I. Selyuzhenkov, J. Reinnarth, G. Van Buren, A. Ogawa, A. S. Hirsch, J. W. Harris, Shengli Huang, Thomas A. Trainor, W. R. Edwards, J. C. Webb, P. Kravtsov, C-Q. Li, T. W. Ludlam, J. C. Dunlop, J. M. Nelson, R. P. Scharenberg, Christina Markert, Anthony R. Timmins, Yan Li, W. Peryt, H. S. Matis, J. Sowinski, P. Yepes, V. Eckardt, J. Porter, Renaud Vernet, Zubayer Ahammed, W. W. Jacobs, J. Lauret, Sukalyan Chattopadhyay, M. J. LeVine, Jianping Cheng, M. S. Ganti, R. Lednicky, L. Molnar, A. Kumar, F. Jia, V. Perevoztchikov, E. W. Hughes, K. L. Kowalik, Sergey Panitkin, F. Du, L. V. Nogach, V. I. Kravtsov, C. Mironov, Y. Fisyak, S. Lehocka, H. Z. Huang, V. Fine, Souvik Das, R. Witt, A. Shabetai, S. Mioduszewski, B. K. Srivastava, I. M. Vasilevski, S. Bhardwaj, Boris Hippolyte, H. Jiang, T. S. McShane, Basanta Kumar Nandi, S. V. Razin, S. Kabana, Y. P. Viyogi, A. H. Tang, A. Chikanian, T. J. Humanic, N. T. Porile, D. K. Mishra, Beomkyu Kim, D. Arkhipkin, R. Varma, Yu A. Matulenko, S. Bekele, B. Stringfellow, C. Roy, E. M. Kislov, J. G. Cramer, M. Swanger, H. Gos, P. Chaloupka, and M. Kramer
Subjects: Quark, Physics, Meson, 010308 nuclear & particles physics, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Spectral line, Nuclear physics, Baryon, Transverse plane, Antiproton, 0103 physical sciences, Pi, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Bar (unit)
Abstract: Transverse momentum spectra of pi(+/-), p, and (p) over bar p up to 12 GeV/c at midrapidity in centrality selected Au + Au collisions at root s(NN) = 200 GeV are presented. In central Au + Au collisions, both pi(+/-) and p((p) over bar) show significant suppression with respect to binary scaling at p(T) greater than or similar to 4 GeV/c. Protons and antiprotons are less suppressed than pi(+/-), in the range 1.5 less than or similar to p(T) less than or similar to 6 GeV/c. The pi(-)/pi(+) and (p) over bar /p ratios show at most a weak pT dependence and no significant centrality dependence. The p/pi ratios in central Au + Au collisions approach the values in p + p and d + Au collisions at p(T) greater than or similar to 5 GeV/c. The results at high p(T) indicate that the partonic sources of pi(+/-), p, and (p) over bar have similar energy loss when traversing the nuclear medium
Published: 2006

196. Strange Baryon Resonance Production insNN=200 GeVp+pandAu+AuCollisions

Author: N. Xu, P. Filip, T. P. Burton, C. Roy, Debasish Das, D. G. Underwood, R. Fatemi, A. Ridiger, D. Thein, J. X. Zuo, M. L. Miller, G. D. Westfall, S. Das, G. Eppley, J. Porter, S. LaPointe, Petr Jákl, J. Pluta, L. Molnar, J. Engelage, A. Shabetai, John N. Wood, Premomoy Ghosh, J. M. Landgraf, Christine Nattrass, M. Strikhanov, L. Martin, S. L. Blyth, G. Wang, G. Odyniec, J. Sandweiss, Z. Liu, J. Speltz, M. DePhillips, X. L. Wang, Rene Bellwied, J. Cheng, T. J. M. Symons, M. Swanger, H. Gos, M. Kopytine, J. Fu, S. R. Klein, T. Tarnowsky, V. Fine, Michal Sumbera, A. A. P. Suaide, M. J. Horner, S. Margetis, P. Chaloupka, R. Picha, M. Tokarev, O. Barannikova, D. L. Olson, B. Erazmus, M. S. Daugherity, M. van Leeuwen, X. Dong, P. Sorensen, J. Reinnarth, R. E. Tribble, C. A. Whitten, A. A. Derevschikov, L. Ruan, Y. Bai, M. Calderon De La Barca Sanchez, S. Trentalange, M. Shao, G. Van Buren, Q. H. Xu, C. J. McClain, A. Tai, S. K. Pal, G. Sood, Gerald W Hoffmann, Madan M. Aggarwal, T. Kollegger, A. I. Pavlinov, Neeraj Gupta, Fuqiang Wang, A. A. Kuznetsov, S. Y. Panitkin, D. K. Mishra, D. Cebra, A. Bravar, F. Liu, J. Castillo, O. Catu, J. Amonett, J. S. Wang, A. Stolpovsky, A. Rose, Z. J. Sun, Ilya Selyuzhenkov, S. W. Wissink, M. Estienne, Sergey Voloshin, T. W. Ludlam, S. Lange, Y. Zhang, T. D. Gutierrez, S. J. Lindenbaum, M. Cherney, J. M. Nelson, L. Kotchenda, S. Hepplemann, A. Szanto de Toledo, H. Liu, A. Chikanian, T. D. S. Stanislaus, A. N. Zubarev, R. N. Singaraju, H. H. Wieman, A. Kocoloski, Yu Melnick, A. P. Meschanin, F. Laue, Thomas Michael Cormier, Nikola Poljak, J. P. Coffin, Y. G. Ma, W. Peryt, R. D. Majka, J. Kapitan, J. Sowinski, Q. Li, J. Schambach, P. Fachini, K. S.F.F. Guimaraes, M. Heinz, J. E. Draper, T. Pawlak, E. Potrebenikova, Marcelo Gameiro Munhoz, D. J. Prindle, Michael Kramer, V. Emelianov, A. K. Bhati, J. H. Thomas, E. Sugarbaker, Anju Bhasin, D. Keane, K. Kang, A. V. Brandin, T. J. Humanic, D. Arkhipkin, A. Hamed, Guo-Liang Ma, T. Ljubicic, X. Lin, H. Z. Huang, S. Vokal, R. Stock, A. Lebedev, M. M. de Moura, V. V. Belaga, F. Retiere, S. Bekele, M. Botje, Manish Sharma, H. Caines, Sudhir Raniwala, N. G. Minaev, L. K. Mangotra, M. A. Lisa, S. E. Vigdor, J. E. Gonzalez, W. J. Dong, B. D. Anderson, G. Lin, S. S. Shimanskiy, D. Relyea, R. Manweiler, J. W. Harris, Morton Kaplan, V. I. Yurevich, X. Z. Cai, Bedangadas Mohanty, J. Kiryluk, J. H. Chen, Rajarshi Ray, E. P. Sichtermann, Y. Fisyak, F. Jia, W. He, Y. Li, S. M. Guertin, F. Du, Camelia Mironov, Thomas Dietel, L. V. Nogach, Christian Claude Kuhn, L. Liu, H. Bichsel, Y. Zoulkarneeva, C. Zhong, L. G. Efimov, Z. P. Zhang, A. S. Hirsch, V. I. Kravtsov, P. M. Jacobs, P. Kravtsov, Peter Graham Jones, O. G. Grebenyuk, M. Potekhin, V. B. Dunin, J. Balewski, J. Fedorisin, D. A. Morozov, W. Christie, R. S. Longacre, L. Didenko, H. Jiang, C-H. Lee, T. K. Nayak, D. P. Mahapatra, Rashmi Raniwala, W. L. Zhan, Claude Andre Pruneau, Sadhana Dash, A. Kechechyan, Andre Mischke, S. Lehocka, A. Stadnik, Frank Simon, David Lynn, A. I. Kulikov, I-K. Yoo, W. M. Zhang, R. V. Cadman, Andrey Vasiliev, Jianhong Wu, T. Ullrich, Y. Panebratsev, Basanta Kumar Nandi, M. J. Russcher, J. Takahashi, P. Seyboth, J. C. Webb, D. Grosnick, M. A. C. Lamont, S. B. Nurushev, M. R. Cosentino, V. Kouchpil, A. Wetzler, R. Zoulkarneev, Anthony Robert Timmins, Adam Ryszard Kisiel, H. J. Crawford, M. Bystersky, Vitaly Okorokov, Janet Elizabeth Seger, Raghunath Sahoo, A. M. Hoffman, F. Benedosso, B. I. Abelev, A. M. Poskanzer, J. G. Ma, A. Bellingeri-Laurikainen, P. Yepes, V. Eckardt, Renaud Vernet, G. S. Averichev, G. Igo, M. Oldenburg, Z. Z. Xu, T. W. Henry, W. T. Waggoner, J. Bouchet, Nikita Smirnov, Bernd Surrow, J. Ulery, Y. G. Gorbunov, J. Millane, B. E. Bonner, O. D. Tsai, A. H. Tang, H. G. Ritter, T. G. Dedovich, Y. Zhao, W. Q. Shen, Sukalyan Chattopadhyay, B. Haag, R.J.M. Snellings, K. Schweda, M. S. Ganti, T. J. Hallman, L. Gaillard, Sevil Salur, E. G. Judd, Pawan Kumar Netrakanti, R. Witt, S. Mioduszewski, V. Yu Khodyrev, Y. P. Lu, B. K. Srivastava, I. M. Vasilevski, S. Bhardwaj, S. C. Phatak, A. Kumar, Boris Hippolyte, J. C. Dunlop, Zubayer Ahammed, M. J. LeVine, Z. Chajecki, V. Perevoztchikov, Sunil Dogra, K. Filimonov, E. W. Hughes, S. V. Razin, L. Gaudichet, Jay Roberts, K. Krueger, C. A. Gagliardi, C. F. Moore, K. L. Kowalik, C-Q. Li, C. Perkins, L. C. Bland, N. van der Kolk, H. M. Spinka, M. Pachr, T. Peitzmann, Lee Stuart Barnby, R. P. Scharenberg, Christina Markert, H. S. Matis, Jaroslav Bielcik, W. W. Jacobs, J. Lauret, M. R. Dutta Mazumdar, O. V. Rogachevskiy, R. Lednicky, W. A. Love, D. D. Koetke, A. M. Vander Molen, B. V. K. S. Potukuchi, E. Hjort, Gregory Rakness, S. Timoshenko, J. Putschke, J. W. Watson, A. Ogawa, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, M. Sarsour, Mirko Planinic, Michael W. Anderson, N. Schmitz, E. Shahaliev, V. Ghazikhanian, Jana Bielcikova, J. L. Romero, P. S. Sazhin, E. Finch, T. S. McShane, S. Kabana, Y. P. Viyogi, Tai Sakuma, N. T. Porile, Beomkyu Kim, R. Varma, Yu A. Matulenko, B. Stringfellow, Y. Wang, E. M. Kislov, J. G. Cramer, J. Baudot, J. W. Mitchell, P. Djawotho, D. Magestro, W. J. Llope, H. Long, Jie Liu, and H. Zhang
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Star (game theory), Hadron, General Physics and Astronomy, Resonance, Lambda, 01 natural sciences, Spectral line, Baryon, 0103 physical sciences, Production (computer science), Nuclear Experiment, 010306 general physics
Abstract: We report the measurements of $\ensuremath{\Sigma}(1385)$ and $\ensuremath{\Lambda}(1520)$ production in $p+p$ and $\mathrm{Au}+\mathrm{Au}$ collisions at $\sqrt{{s}_{NN}}=200\text{ }\text{ }\mathrm{GeV}$ from the STAR Collaboration. The yields and the ${p}_{T}$ spectra are presented and discussed in terms of chemical and thermal freeze-out conditions and compared to model predictions. Thermal and microscopic models do not adequately describe the yields of all the resonances produced in central $\mathrm{Au}+\mathrm{Au}$ collisions. Our results indicate that there may be a time span between chemical and thermal freeze-out during which elastic hadronic interactions occur.
Published: 2006

197. Multiplicity dependence of inclusiveptspectra fromp−pcollisions ats=200 GeV

Author: Michael Kramer, Bernd Surrow, Pawan Kumar Netrakanti, G. Eppley, Guo-Liang Ma, C. A. Gagliardi, N. van der Kolk, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, M. Pachr, V. I. Yurevich, J. W. Harris, W. L. Zhan, Frank Simon, O. G. Grebenyuk, V. Ghazikhanian, J. C. Dunlop, R. S. Longacre, Lee Stuart Barnby, Jie Liu, H. Jiang, Jaroslav Bielcik, B. V. K. S. Potukuchi, M. R. Dutta Mazumdar, O. V. Rogachevskiy, A. Ridiger, W. A. Love, D. D. Koetke, J. Pluta, J. Speltz, E. P. Sichtermann, Jana Bielcikova, N. T. Porile, Basanta Kumar Nandi, J. L. Romero, L. Molnar, Zubayer Ahammed, Z. P. Zhang, A. Wetzler, J. Balewski, Rashmi Raniwala, V. B. Dunin, Y. Fisyak, R. Fatemi, Y. Panebratsev, M. J. LeVine, J. H. Thomas, J. Fedorisin, Christine Nattrass, A. S. Hirsch, P. M. Jacobs, P. Kravtsov, G. Lin, T. Kollegger, A. I. Pavlinov, F. Liu, Rene Bellwied, P. Yepes, V. Eckardt, Renaud Vernet, Beomkyu Kim, Claude Andre Pruneau, A. Stolpovsky, P. S. Sazhin, A. M. Poskanzer, C. O. Blyth, R. E. Tribble, B. Erazmus, R. Varma, Yu A. Matulenko, R. V. Cadman, Jianhong Wu, Raghunath Sahoo, A. Bellingeri-Laurikainen, G. Igo, M. Oldenburg, V. Petrov, T. Ullrich, A. A. Kuznetsov, S. Y. Panitkin, J. S. Wang, E. Finch, D. Grosnick, V. Kouchpil, J. Putschke, M. R. Cosentino, F. Benedosso, S. Lehocka, Sergey Voloshin, J. Ulery, H. G. Ritter, R. Picha, L. K. Mangotra, M. DePhillips, Michal Sumbera, A. A. P. Suaide, L. Gaillard, F. Retiere, N. G. Minaev, B. Stringfellow, H. Liu, A. Chikanian, Gerald W Hoffmann, J. Bouchet, R. Zoulkarneev, Y. Bai, A. H. Tang, J. W. Watson, A. N. Zubarev, P. Seyboth, L. Kotchenda, S. Hepplemann, R. Manweiler, L. Martin, Y. Wang, T. S. McShane, A. Ogawa, Z. Z. Xu, H. F. Chen, Shengli Huang, Thomas A. Trainor, W. R. Edwards, G. S. Averichev, T. D. Gutierrez, F. Laue, J. Castillo, N. Xu, P. Filip, S. W. Wissink, Neeraj Gupta, D. Cebra, A. M. Vander Molen, M. Estienne, C-Q. Li, Y. Zhao, T. G. Dedovich, Sukalyan Chattopadhyay, R.J.M. Snellings, M. Cherney, E. Hjort, Thomas Michael Cormier, R. D. Majka, J. Sowinski, L. Liu, I-K. Yoo, A. Szanto de Toledo, J. Kapitan, Debasish Das, T. J. Humanic, D. Arkhipkin, A. Hamed, X. L. Wang, J. Porter, S. Bekele, M. J. Horner, Y. Zhang, Yu Melnick, R. P. Scharenberg, Christina Markert, Gregory Rakness, Nikita Smirnov, H. Zhang, H. S. Matis, B. E. Bonner, Q. H. Xu, B. I. Bezverkhny, S. Margetis, M. S. Ganti, S. C. Phatak, A. Kumar, P. Fachini, J. Baudot, S. V. Razin, J. Schambach, G. D. Westfall, S. Das, M. van Leeuwen, X. Dong, W. J. Llope, O. D. Tsai, S. Timoshenko, K. S.F.F. Guimaraes, Nikola Poljak, I. Sakrejda, T. J. Hallman, T. W. Henry, W. Christie, W. T. Waggoner, S. K. Pal, W. W. Jacobs, A. Bravar, A. I. Kulikov, J. Lauret, Marcelo Gameiro Munhoz, D. J. Prindle, Y. P. Lu, T. Pawlak, C. Roy, A. Kechechyan, Andre Mischke, A. Stadnik, Petr Jákl, R. N. Singaraju, J. X. Zuo, A. P. Meschanin, C. J. McClain, Jay Roberts, Y. Guo, V. Perevoztchikov, W. M. Zhang, Andrey Vasiliev, Sunil Dogra, K. Filimonov, E. W. Hughes, B. D. Anderson, J. R. Adams, B. Haag, K. Schweda, J. E. Draper, E. Potrebenikova, S. Kabana, W. Q. Shen, F. Du, R. Lednicky, K. L. Kowalik, Camelia Mironov, M. L. Miller, T. Ljubicic, Y. P. Viyogi, L. C. Bland, Thomas Dietel, Y. Li, S. M. Guertin, Ilya Selyuzhenkov, A. Shabetai, J. W. Mitchell, G. Wang, L. V. Nogach, H. Caines, Sudhir Raniwala, M. A. Lisa, M. Swanger, S. R. Klein, H. Gos, T. Tarnowsky, P. Chaloupka, W. J. Dong, S. S. Shimanskiy, S. LaPointe, Manish Sharma, Janet Elizabeth Seger, J. Engelage, V. I. Kravtsov, K. Krueger, D. Thein, D. Relyea, D. G. Underwood, O. Barannikova, D. L. Olson, Mirko Planinic, J. Takahashi, E. M. Kislov, M. S. Daugherity, John N. Wood, Anju Bhasin, C. F. Moore, D. P. Mahapatra, S. Trentalange, Z. Chajecki, M. Sarsour, M. Calderon De La Barca Sanchez, J. G. Cramer, Sevil Salur, Michael W. Anderson, V. Fine, M. Kopytine, J. Fu, J. P. Coffin, M. A. C. Lamont, P. Djawotho, Z. J. Sun, H. Bichsel, S. B. Nurushev, Yu Chen, Y. Zoulkarneeva, H. M. Spinka, O. Catu, H. A. Choi, A. V. Brandin, A. A. Derevschikov, Premomoy Ghosh, K. Kang, M. Tokarev, A. Lebedev, C. Zhong, C. Perkins, M. Potekhin, A. Tai, J. M. Landgraf, M. M. de Moura, E. Sugarbaker, Q. Li, N. Schmitz, J. Cheng, T. Peitzmann, Anthony Robert Timmins, V. V. Belaga, S. E. Vigdor, M. Heinz, G. Sood, Adam Ryszard Kisiel, M. Strikhanov, H. Z. Huang, T. J. M. Symons, E. Shahaliev, David Lynn, M. Botje, Y. G. Gorbunov, M. J. Russcher, Christian Claude Kuhn, J. Amonett, F. Jia, C. A. Whitten, D. Magestro, S. Vokal, S. L. Blyth, W. He, R. Witt, H. Long, H. J. Crawford, Peter Graham Jones, T. D. S. Stanislaus, J. C. Webb, L. Ruan, H. H. Wieman, G. Odyniec, J. Sandweiss, Z. Liu, S. Mioduszewski, V. Yu Khodyrev, L. Didenko, V. Emelianov, A. K. Bhati, J. G. Ma, A. Rose, E. G. Judd, S. Lange, B. K. Srivastava, I. M. Vasilevski, D. Keane, S. J. Lindenbaum, Morton Kaplan, J. Kiryluk, J. H. Chen, Rajarshi Ray, J. Gans, X. Z. Cai, S. Bhardwaj, J. E. Gonzalez, R. Stock, Bedangadas Mohanty, Boris Hippolyte, P. Sorensen, J. Reinnarth, D. A. Morozov, M. Shao, G. Van Buren, L. G. Efimov, T. W. Ludlam, C-H. Lee, T. K. Nayak, M. Lopez-Noriega, J. M. Nelson, M. Bystersky, Y. G. Ma, W. Peryt, V. A. Nikitin, and Vitaly Okorokov
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, 0103 physical sciences, Multiplicity (chemistry), 010306 general physics, 01 natural sciences
Published: 2006

198. Longitudinal double-spin asymmetry and cross section for inclusive jet production in polarized proton collisions at square root of s = 200 GeV

Author: B I, Abelev, 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, Bielcik, J, Bielcikova, L C, Bland, S-L, Blyth, B E, Bonner, M, Botje, J, Bouchet, A V, Brandin, A, Bravar, T P, Burton, M, Bystersky, R V, Cadman, X Z, Cai, H, Caines, M Calderón de la Barca, Sánchez, J, Castillo, O, Catu, D, Cebra, Z, Chajecki, P, Chaloupka, S, Chattopadhyay, H F, Chen, J H, Chen, J, Cheng, M, Cherney, A, Chikanian, W, Christie, J P, Coffin, T M, Cormier, M R, Cosentino, J G, Cramer, H J, Crawford, D, Das, S, 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, W J, Dong, X, Dong, 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, M, Estienne, P, Fachini, R, Fatemi, J, Fedorisin, P, Filip, E, Finch, V, Fine, Y, Fisyak, J, Fu, C A, Gagliardi, L, Gaillard, 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, 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 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, K, 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, Kopytine, L, Kotchenda, V, Kouchpil, K L, Kowalik, M, Kramer, P, Kravtsov, V I, Kravtsov, K, Krueger, C, Kuhn, 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, X, Lin, S J, Lindenbaum, M A, Lisa, F, Liu, H, Liu, J, Liu, L, Liu, Z, Liu, T, Ljubicic, W J, Llope, H, Long, R S, Longacre, 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, L, Martin, 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, 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, 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, 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, D, Relyea, A, Ridiger, H G, Ritter, J B, Roberts, O V, Rogachevskiy, J L, 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, J, Seger, I, Selyuzhenkov, P, Seyboth, A, 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, G, Sood, P, Sorensen, J, Sowinski, 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, Sumbera, Z, Sun, B, Surrow, M, Swanger, T J M, Symons, A, Szanto 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 Vander, Molen, R, Varma, I M, Vasilevski, A N, Vasiliev, R, Vernet, 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, and J X, Zuo
Abstract: We report a measurement of the longitudinal double-spin asymmetry A(LL) and the differential cross section for inclusive midrapidity jet production in polarized proton collisions at square root of s = 200 GeV. The cross section data cover transverse momenta 5pT50 GeV/c and agree with next-to-leading order perturbative QCD evaluations. The A(LL) data cover 5pT17 GeV/c and disfavor at 98% C.L. maximal positive gluon polarization in the polarized nucleon.
Published: 2006

199. Transverse momentum and centrality dependence of high-pT nonphotonic electron suppression in Au+Au collisions at sqrt[s NN]=200 GeV

Author: 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, S, Baumgart, V V, Belaga, A, Bellingeri-Laurikainen, 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, R V, Cadman, X Z, Cai, H, Caines, M, Calderón de la Barca Sánchez, J, Callner, O, Catu, D, Cebra, 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, J P, Coffin, 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, M, 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 G, Gorbunov, H, Gos, O, Grebenyuk, D, Grosnick, 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, A, Hirsch, E, Hjort, A M, Hoffman, G W, Hoffmann, D, Hofman, R, 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, K, Kang, J, Kapitan, M, Kaplan, D, Keane, A, Kechechyan, D, Kettler, V Yu, Khodyrev, B C, Kim, 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, 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, H, 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, Magestro, D P, Mahapatra, R, Majka, L K, Mangotra, R, Manweiler, S, Margetis, C, Markert, L, Martin, 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, C, Mironov, A, Mischke, J, Mitchell, B, Mohanty, D A, Morozov, M G, Munhoz, B K, Nandi, C, Nattrass, T K, Nayak, J M, Nelson, N S, 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, 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, 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, A, 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, 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, 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, Wu, Y, Wu, N, Xu, Q H, Xu, Z, Xu, P, Yepes, I-K, Yoo, Q, Yue, V I, Yurevich, 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, and J X, Zuo
Abstract: The STAR collaboration at the BNL Relativistic Heavy-Ion Collider (RHIC) reports measurements of the inclusive yield of nonphotonic electrons, which arise dominantly from semileptonic decays of heavy flavor mesons, over a broad range of transverse momenta (1.2p(T)10 GeV/c) in p+p, d+Au, and Au+Au collisions at sqrt[s_{NN}]=200 GeV. The nonphotonic electron yield exhibits an unexpectedly large suppression in central Au+Au collisions at high p(T), suggesting substantial heavy-quark energy loss at RHIC. The centrality and p(T) dependences of the suppression provide constraints on theoretical models of suppression.
Published: 2006

200. Minijet deformation and charge-independent angular correlations on momentum subspace(η,ϕ)in Au-Au collisions atsNN=130GeV

Author: O. D. Tsai, Vitaly Okorokov, T. S. McShane, E. Sugarbaker, Y. Panebratsev, D. Grosnick, V. Kouchpil, C. Roy, S. Vokal, Sevil Salur, Y. Wang, A. Tai, J. Amonett, Bernd Surrow, R. S. Longacre, V. Emelianov, A. K. Bhati, D. Keane, Nikolai Smirnov, B. Erazmus, J. Mitchell, L. G. Efimov, C-H. Lee, T. K. Nayak, L. K. Mangotra, R. Manweiler, G. Eppley, Debasish Das, Raghunath Sahoo, I. K. Yoo, Y. G. Gorbunov, M. S. Daugherity, M. A.C. Lamont, A. Stolpovsky, Pawan Kumar Netrakanti, A. Bellingeri-Laurikainen, Hao-Ze Chen, L. Kotchenda, S. Hepplemann, Xu Cai, J. Pluta, S. V. Razin, J. Kiryluk, G. Igo, P. Seyboth, H. M. Liu, WL Zhan, A. M. Poskanzer, D. Cebra, M. Swanger, M. Calderon De La Barca Sanchez, Sergey Voloshin, Christine Nattrass, S. Trentalange, H. Gos, P. Chaloupka, J. Bouchet, O. Catu, M. Estienne, A. I. Pavlinov, F. Liu, E. G. Judd, B. Haag, Yu Melnick, C. A. Gagliardi, N. van der Kolk, A. Kechechyan, Andre Mischke, J. H. Thomas, D. A. Morozov, Andrew Rose, K. Schweda, Y. Zhao, G. Sood, N. Schmitz, E. Shahaliev, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, Q. Li, J. E. Gonzalez, C. O. Blyth, Q. H. Xu, Jianping Cheng, C-Q. Li, Jay Roberts, K. Kang, A. H. Tang, M. Pachr, R. E. Tribble, L. C. Bland, A. Chikanian, M. Potekhin, Zhijia Sun, A. A. Kuznetsov, David Lynn, S. Kabana, Y. P. Viyogi, Bedangadas Mohanty, A. M. Vander Molen, L. Liu, M. J. Russcher, T. D. Gutierrez, R. D. Majka, X. L. Wang, C. Zhong, B. I. Bezverkhny, Gerald W Hoffmann, M. Botje, I. Sakrejda, P. Fachini, D. K. Mishra, E. Hjort, J. Baudot, A. Ridiger, Thorsten Sven Kollegger, R. P. Scharenberg, Gregory Rakness, R. N. Singaraju, A. P. Meschanin, E. M. Kislov, J. C. Webb, A. Stadnik, J. G. Cramer, S. M. Guertin, Alexandre Alarcon Do Passo Suaide, D. Arkhipkin, A. Kumar, D. Thein, S. Margetis, J. Schambach, Y. Guo, L. Ruan, M. J. Horner, M. van Leeuwen, X. Dong, W. Christie, S. Bekele, J. X. Zuo, J. Adams, Peter Martin Jacobs, A. Hamed, Wen-Qing Shen, V. Ghazikhanian, O. G. Grebenyuk, H. S. Matis, F. Du, J. G. Ma, M. Lopez-Noriega, M. Kopytine, J. Fu, V. B. Dunin, A. Ishihara, A. I. Kulikov, J. H. Chen, M. Bystersky, J. L. Romero, D. P. Mahapatra, W. M. Zhang, J. Wu, Yu Chen, J. Fedorisin, A. Bravar, Z. Chajecki, Gang Wang, Y. Lu, Marcelo Gameiro Munhoz, D. J. Prindle, Adam Ryszard Kisiel, H. Jiang, Andrey Vasiliev, P. S. Sazhin, E. Finch, M. Tokarev, J. Speltz, C. F. Moore, Nu Xu, M. Shao, M. DePhillips, J. Ulery, L. Martin, J. W. Harris, E. P. Sichtermann, L. V. Nogach, D. Magestro, R. Snellings, H. J. Crawford, H. G. Ritter, M. A. Lisa, Basanta Kumar Nandi, J. Porter, W. J. Dong, J. Balewski, S. LaPointe, Rashmi Raniwala, B. D. Anderson, C. Perkins, D. D. Koetke, Janet Elizabeth Seger, Michal Sumbera, S. B. Nurushev, Anthony R. Timmins, Claude Andre Pruneau, R. Bellwied, R. Fatemi, G. S. Averichev, P. Yepes, V. Eckardt, T. D. S. Stanislaus, Renaud Vernet, Yinina Ma, H. A. Choi, H. H. Wieman, M. Sharma, V. I. Kravtsov, J. Engelage, L. Gaillard, W. W. Jacobs, J. E. Draper, C. J. McClain, Anju Bhasin, K. Krueger, C. Mironov, T. Ullrich, John N. Wood, J. C. Dunlop, Y. Fisyak, Z. Xu, G. Lin, R. Zoulkarneev, Zhenyu Zhang, Reinhard Stock, M. R. Cosentino, Zubayer Ahammed, Premomoy Ghosh, Thomas Peitzmann, R. Picha, Anik Gupta, F. Retiere, Y. Bai, M. J. LeVine, S. Lehocka, J. Castillo, M. Kramer, J. M. Landgraf, J. P. Coffin, A. Lebedev, R. V. Cadman, W. He, J. Lauret, M. Cherney, Thomas Michael Cormier, M. Strikhanov, F. Jia, S. W. Wissink, Y. Zhang, R. L. Ray, E. Potrebenikova, M. Sarsour, T. J. Humanic, S. L. Blyth, T. G. Dedovich, M. M. de Moura, S. C. Phatak, H. Z. Huang, Christina Markert, J. Sandweiss, Z. Liu, Nikola Poljak, N. T. Porile, V. Fine, Beomkyu Kim, F. Laue, A. Szanto de Toledo, J. Kapitan, T. Ljubicic, R. Varma, W. T. Waggoner, Jian-Song Wang, Yu A. Matulenko, H. Caines, Sudhir Raniwala, B. Stringfellow, A. Shabetai, S. S. Shimanskiy, D. Relyea, Souvik Das, S. M. Dogra, A. Wetzler, R. Witt, N. G. Minaev, Morton Kaplan, S. Mioduszewski, V. Yu Khodyrev, Subrata Pal, S. Bharadwaj, B. K. Srivastava, I. M. Vasilevski, J. Gans, Boris Hippolyte, I. Selyuzhenkov, H. M. Spinka, R. Lednicky, L. Molnar, J. Reinnarth, T. Pawlak, G. Van Buren, T. W. Ludlam, J. M. Nelson, Yan Li, W. Peryt, Jorn Henning Putschke, A. V. Brandin, H. Zhang, S. E. Vigdor, Christian Claude Kuhn, Sergey Timoshenko, D. G. Underwood, P. Filip, Matthew J. Anderson, T. J. Hallman, T. J. M. Symons, J. Takahashi, J. W. Watson, A. Ogawa, Shengli Huang, Thomas A. Trainor, W. R. Edwards, T. Dietel, Mirko Planinic, G. D. Westfall, T. W. Henry, Petr Jákl, A. N. Zubarev, K. S.F.F. Guimaraes, V. V. Belaga, P. Sorensen, C. A. Whitten, S. Lange, Jana Bielcikova, S. J. Lindenbaum, Peter Graham Jones, L. Didenko, S. R. Klein, T. Tarnowsky, O. Barannikova, D. L. Olson, A. A. Derevschikov, Madan M. Aggarwal, Fuqiang Wang, M. Oldenburg, V. I. Yurevich, Frank Simon, M. Heinz, Lee Stuart Barnby, Jaroslav Bielcik, M. R. Dutta Mazumdar, O. V. Rogachevskiy, W. A. Love, Sukalyan Chattopadhyay, M. S. Ganti, V. Perevoztchikov, K. Filimonov, E. W. Hughes, K. L. Kowalik, Sergey Panitkin, M. L. Miller, Guo-Liang Ma, A. S. Hirsch, P. Kravtsov, Jeffrey G. Reid, J. Sowinski, V. A. Nikitin, B. V.K.S. Potukuchi, Vladimir Petrov, W. J. Llope, H. Long, Jie Liu, P. Djawotho, and B. E. Bonner
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Scattering, Hadron, Elliptic flow, Parton, 01 natural sciences, Nuclear physics, Azimuth, Amplitude, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: Measurements of two-particle correlations on angular difference variables η1 − η2 (pseudorapidity) and φ1 − φ2 (azimuth) are presented for all primary charged hadrons with transverse momentum 0.15 ≤ p_t ≤ 2 GeV/c and |η| ≤ 1.3 from Au-Au collisions at √s_(NN) = 130 GeV. Large-amplitude correlations are observed over a broad range in relative angles where distinct structures appear on the same-side and away-side (i.e., relative azimuth less than π/2 or greater than π/2). The principal correlation structures include that associated with elliptic flow plus a strong, same-side peak. It is hypothesized that the latter results from correlated hadrons associated with semi-hard parton scattering in the early stage of the heavy-ion collision which produces a jet-like correlation peak at small relative angles. The width of the jet-like peak on η1 − η2 increases by a factor 2.3 from peripheral to central collisions, suggesting strong coupling of semi-hard scattered partons to a longitudinally-expanding medium. The new methods of jet analysis introduced here provide access to scattered partons at low transverse momentum well below the kinematic range where perturbative quantum chromodynamics and standard fragmentation models are applicable.
Published: 2006

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