Author: "B. E. Bonner" / Publisher: american physical society (aps) - Searchworks@Jio Institute Digital Library Search Results

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1. Erratum: Azimuthal Anisotropy of KS0 and Λ+Λ¯ Production at Midrapidity from Au+Au Collisions at sNN=130 GeV [Phys. Rev. Lett. 89 , 132301 (2002)]

Author: S. P. Chernenko, W. J. Llope, A. Cardenas, H. Long, R. Lednický, V. A. Nikitin, K. E. Shestermanov, A. Stolpovsky, R. S. Longacre, W. Christie, L. Kotchenda, H. Bichsel, P. Seyboth, V. Trofimov, Guy Paic, A. Chikanian, A. V. Brandin, S. S. Shimanskii, A. I. Kulikov, Masashi Kaneta, W. M. Zhang, L. C. Bland, Y. Panebratsev, R.Kh. Kutuev, Andrey Vasiliev, Joram Berger, T. Todoroki, Adam Ryszard Kisiel, J. B. Carroll, A. E. Yakutin, G. Igo, M. Oldenburg, H. J. Crawford, M. Castro, M. Calderon De La Barca Sanchez, G. Rai, J. W. Mitchell, N. Schmitz, Janet Elizabeth Seger, VL Rykov, B. D. Anderson, V. Petrov, E. Shahaliev, A. Boucham, T. J. Humanic, V. B. Dunin, A. C. Saulys, Z. Z. Xu, Q. Li, R. Witt, S. E. Vigdor, T. W. Henry, Christian Claude Kuhn, W. S. Deng, V. Ghazikhanian, Nikita Smirnov, I.A. Savin, M. Csanád, A. I. Pavlinov, F. Liu, M. B. Tonjes, J. W. Harris, B. E. Bonner, N. T. Porile, O. D. Tsai, J. L. Romero, Mirko Planinic, H. M. Spinka, C. E. Allgower, G. Eppley, S. Bekele, V. Morozov, Michael Kramer, M. Cherney, B. Lasiuk, E. Finch, Thomas Michael Cormier, R. Willson, D. G. Underwood, Michael W. Anderson, E. Gushin, P. Yepes, V. Eckardt, R. Ma, P. Nevski, J. H. Thomas, D. Hardtke, F. Laue, A. H. Tang, R. D. Majka, J. Pluta, L. Liu, V. M. Leontiev, Olivier Ravel, G. LoCurto, C. O. Blyth, E. Hjort, I. Zborovský, Yu A. Matulenko, M. Horsley, G. Skoro, B. Stringfellow, T. S. McShane, Rene Bellwied, C. P. Lansdell, R. E. Tribble, R.J.M. Snellings, Gerald W Hoffmann, J. N. Marx, B. Choi, J. G. Cramer, Thomas Dietel, Alexander Kovalenko, L. V. Nogach, A. P. Meschanin, Y. Fisyak, Ian Johnson, Christophe Pierre Suire, J. Sowinski, J. Schambach, D. Reichhold, T. J. M. Symons, T. Niida, A. Lebedev, M. M. de Moura, A. Szanto de Toledo, T. Pawlak, Morton Kaplan, P. Sorensen, G. Van Buren, Sevil Salur, Saurabh Pandey, A. Tai, T. W. Ludlam, J. Amonett, J. M. Nelson, V. Emelianov, D. Keane, W. Peryt, R. Stock, L. G. Efimov, D. Seliverstov, A. Schüttauf, G. S. Averichev, J. Porter, C. Roy, A. Klyachko, Vladimir Tikhomirov, P. Chaloupka, S. Trentalange, A. Ishihara, Yu Chen, Gregory Rakness, B. K. Srivastava, I. M. Vasilevski, F. Retiere, J. Gans, Boris Hippolyte, J. C. Dunlop, Zubayer Ahammed, M. J. LeVine, H. G. Ritter, A. S. Konstantinov, B. Norman, A. A. Kuznetsov, S. Y. Panitkin, E. Yamamoto, J. Engelage, David Lynn, J. G. Ma, J. Takahashi, M. A. C. Lamont, S. B. Nurushev, Z. Milosevich, N. G. Minaev, Sergey Voloshin, K. J. Foley, V. S. Shvetcov, Q. J. Liu, C. A. Whitten, J. Baudot, A. Rose, Y. V. Zanevski, S. Lange, S. J. Lindenbaum, Yu. Ivanshin, N. Xu, John N. Wood, M. Guedon, A. M. Poskanzer, A. M. VanderMolen, Russell Wells, J. M. Landgraf, M. Strikhanov, A. Billmeier, J. Putschke, J. W. Watson, A. Ogawa, Thomas A. Trainor, R. P. Scharenberg, Christina Markert, H. S. Matis, G. Odyniec, J. Sandweiss, Z. Liu, W. W. Jacobs, G. D. Westfall, H. Ward, L. S. Schroeder, S. V. Razin, L. Gaudichet, H. Zhang, Jay Roberts, Jinghui Yang, Malgorzata Anna Janik, C. L. Kunz, K. Krueger, C. F. Moore, C. Struck, M. Lopez-Noriega, I. Sakrejda, M. L. Miller, Fuqiang Wang, P. Szarwas, A. S. Hirsch, P. M. Jacobs, P. Kravtsov, C. Adler, E. G. Judd, Michael A. Thompson, Michal Sumbera, Jeffrey G. Reid, A. A. P. Suaide, E. Sugarbaker, S. R. Klein, V. Faine, J. Castillo, S. W. Wissink, J. E. Draper, H. Z. Huang, N.D. Gagunashvili, O. Barannikova, D. L. Olson, Sukalyan Chattopadhyay, T. J. Hallman, V. Perevoztchikov, K. Filimonov, A. A. Derevschikov, Marie Germain, V. I. Yurevich, A. N. Zubarev, M. Messer, P. Fachini, V. V. Belaga, Peter Graham Jones, Lee Stuart Barnby, F. Meissner, L. Didenko, M. Kopytine, J. Fu, M. Tokarev, K. Schweda, H. H. Wieman, J. Kiryluk, Rajarshi Ray, L. Lakehal-Ayat, W. A. Love, Vitaly Okorokov, Bernd Surrow, J. L. Klay, C. A. Gagliardi, A. Ridiger, T. Herston, R. V. Cadman, S. Heppelmann, D. Flierl, Frank Jm Geurts, L. Martin, J. P. Coffin, O. V. Rogachevski, V. A. Moiseenko, Marcelo Gameiro Munhoz, D. J. Prindle, E. J. Stephenson, M. A. Lisa, S. Margetis, O. A. Grachov, B. Erazmus, Gerd Joachim Kunde, D. Cebra, A. Bravar, Yu Melnick, J. Balewski, Claude Andre Pruneau, T. Ullrich, R. Zoulkarneev, V. Grigoriev, E. Potrebenikova, T. Ljubicic, and H. Caines
Subjects: Physics, Nuclear physics, Azimuth, General Physics and Astronomy, Anisotropy
Published: 2021

2. Erratum: Azimuthal Anisotropy at the Relativistic Heavy Ion Collider: The First and Fourth Harmonics [Phys. Rev. Lett. 92 , 062301 (2004)]

Author: J. W. Harris, R. Willson, D. G. Underwood, D. Thein, R. V. Cadman, C. Roy, P. Seyboth, M. Kopytine, J. Fu, E. Gushin, P. Yepes, V. Eckardt, D. Reichhold, Jianhong Wu, Frank Jm Geurts, I.A. Savin, N. T. Porile, A. H. Tang, T. J. M. Symons, A. Klyachko, J. H. Thomas, M. Tokarev, C-Q. Li, P. Sorensen, M. Shao, G. Van Buren, S. P. Chernenko, Vladimir Tikhomirov, R. Witt, V. Trofimov, R. P. Scharenberg, Christina Markert, W. T. Waggoner, Yu A. Matulenko, M. Horsley, T. W. Henry, W. J. Llope, P. Chaloupka, V. Yu Khodyrev, B. K. Srivastava, J. C. Dunlop, J. Gans, H. S. Matis, Zubayer Ahammed, M. J. LeVine, S. K. Badyal, S. Trentalange, L. S. Schroeder, S. Bhardwaj, Boris Hippolyte, S. V. Razin, M. Calderon De La Barca Sanchez, H. H. Wieman, B. Stringfellow, L. Gaudichet, H. Long, Sukalyan Chattopadhyay, W. W. Jacobs, J. Lauret, M. S. Ganti, R.Kh. Kutuev, Joram Berger, J. E. Gonzalez, Bedangadas Mohanty, T. W. Ludlam, J. M. Nelson, A. Ridiger, G. S. Averichev, K. Schweda, Guy Paic, A. Chikanian, S. S. Shimanskii, Jay Roberts, S. Stanislaus, V. B. Dunin, S. Mahajan, Q. Li, M. Heinz, Michael Kramer, I. Zborovský, L. K. Mangotra, T. J. Hallman, Y. G. Ma, W. Peryt, D. K. Mishra, S. Heppelmann, D. Flierl, J. Porter, V. Ghazikhanian, J. L. Romero, R. Lednický, L. Martin, J. Engelage, John N. Wood, Premomoy Ghosh, J. M. Landgraf, M. Strikhanov, C. Perkins, T. Niida, A. Lebedev, M. M. de Moura, J. G. Cramer, R. Manweiler, T. S. McShane, Y. Fisyak, Ian Johnson, T. Todoroki, Adam Ryszard Kisiel, J. B. Carroll, Christophe Pierre Suire, H. J. Crawford, G. Wang, V. A. Nikitin, K. E. Shestermanov, A. Boucham, T. J. Humanic, D. Arkhipkin, S. Bekele, A. Ishihara, H. Jiang, Basanta Kumar Nandi, M. Guedon, A. M. Poskanzer, A. M. VanderMolen, Russell Wells, J. P. Coffin, O. V. Rogachevski, C. P. Lansdell, E. Sugarbaker, R.J.M. Snellings, H. Z. Huang, C. Struck, M. Lopez-Noriega, F. Meissner, J. Kiryluk, Rajarshi Ray, D. A. Morozov, J. L. Klay, M. Botje, A. Billmeier, G. Odyniec, J. Sandweiss, Z. Liu, R. Fatemi, C. O. Blyth, R. S. Longacre, P. Bhaskar, V. Perevoztchikov, K. Filimonov, Q. J. Liu, C. A. Whitten, L. Ruan, M. J. Mora-Corral, A. Rose, S. Lange, S. J. Lindenbaum, H. Ward, Sergey Voloshin, K. J. Foley, D. Seliverstov, J. Takahashi, M. A. C. Lamont, S. B. Nurushev, Z. Milosevich, X. L. Wang, B. I. Bezverkhny, S. Margetis, O. A. Grachov, X. Dong, S. K. Pal, A. Bravar, V. Grigoriev, E. Potrebenikova, V. V. Belaga, B. Erazmus, Gerd Joachim Kunde, D. Cebra, M. Estienne, E. Finch, A. Szanto de Toledo, T. Pawlak, A. Stolpovsky, L. Kotchenda, J. R. Adams, M. Castro, L. C. Bland, C. L. Kunz, K. Krueger, C. F. Moore, Y. Panebratsev, D. Grosnick, G. Rai, R. Picha, N. Xu, P. Filip, Debasish Das, G. D. Westfall, S. C. Phatak, A. Kumar, T. Ljubicic, M. Cherney, E. G. Judd, Thomas Michael Cormier, S. Das, P. Nevski, A. Gupta, B. Norman, Malgorzata Anna Janik, J. Baudot, Y. V. Zanevski, Saroj K. Nayak, Morton Kaplan, X. Z. Cai, Peter Graham Jones, Yu Melnick, H. Bichsel, Raghunath Sahoo, S. M. Guertin, D. P. Mahapatra, Yu Chen, M. Csanád, J. N. Marx, Mirko Planinic, P. A. Żołnierczuk, N.D. Gagunashvili, Michael W. Anderson, L. Liu, B. Choi, F. Du, S. Kabana, Olivier Ravel, Y. P. Viyogi, H. Caines, Sudhir Raniwala, Camelia Mironov, Michal Sumbera, A. A. P. Suaide, G. Renault, Thomas Dietel, Zhongyukun Xu, M. Potekhin, G. Igo, Alexander Kovalenko, L. V. Nogach, V. I. Kravtsov, M. R. Dutta Majumdar, M. Oldenburg, J. Zoulkarneeva, V. Faine, J. W. Mitchell, Z. P. Zhang, V. Petrov, J. Castillo, S. W. Wissink, Anand Kumar Dubey, L. Didenko, F. Retiere, A. S. Hirsch, P. M. Jacobs, J. Balewski, Rashmi Raniwala, Claude Andre Pruneau, P. Kravtsov, C. Adler, B. V. K. S. Potukuchi, David Lynn, J. E. Draper, N. G. Minaev, N. Schmitz, E. Shahaliev, T. Ullrich, R. Zoulkarneev, H. G. Ritter, Jeffrey G. Reid, D. Magestro, J. Putschke, J. W. Watson, E. Hjort, Gregory Rakness, H. M. Spinka, A. Ogawa, H. F. Chen, Shengli Huang, Thomas A. Trainor, G. Skoro, J. G. Ma, R. N. Singaraju, Marcelo Gameiro Munhoz, D. J. Prindle, Z. Z. Xu, A. P. Meschanin, S. R. Klein, Manish Sharma, M. A. Lisa, W. J. Dong, O. Barannikova, D. L. Olson, Nikita Smirnov, A. A. Derevschikov, Vitaly Okorokov, Bernd Surrow, Marie Germain, A. Tai, G. Sood, C. A. Gagliardi, J. Amonett, T. Herston, Madan M. Aggarwal, A. N. Zubarev, Fuqiang Wang, M. Messer, V. Emelianov, V. I. Yurevich, Frank Simon, P. Fachini, A. K. Bhati, D. Keane, S. Gronstal, Lee Stuart Barnby, R. Stock, L. G. Efimov, W. A. Love, D. D. Koetke, T. K. Nayak, B. E. Bonner, O. D. Tsai, B. Lasiuk, M. A. Vasiliev, Sevil Salur, Saurabh Pandey, W. Christie, A. I. Kulikov, Masashi Kaneta, W. M. Zhang, Andrey Vasiliev, Janet Elizabeth Seger, T. Kollegger, A. I. Pavlinov, F. Liu, M. B. Tonjes, V. Morozov, T. D. Gutierrez, D. Hardtke, F. Laue, R. D. Majka, J. Sowinski, Z. M. Wang, J. Schambach, Julien Faivre, A. V. Brandin, S. E. Vigdor, Christian Claude Kuhn, R. Ma, B. D. Anderson, H. Zhang, G. Eppley, I. Sakrejda, J. Pluta, M. L. Miller, L. Molnar, P. Szarwas, Rene Bellwied, R. E. Tribble, A. A. Kuznetsov, S. Y. Panitkin, Gerald W Hoffmann, E. Yamamoto, and M. D. Trivedi
Subjects: Nuclear physics, Physics, Azimuth, Harmonics, General Physics and Astronomy, Anisotropy, Relativistic Heavy Ion Collider
Published: 2021

3. Midrapidity Antiproton-to-Proton Ratio fromAu+AuCollisions atsNN=130GeV

Author: Sergey Voloshin, J. Engelage, K. J. Foley, R. S. Longacre, J. M. Landgraf, M. Strikhanov, N. Xu, C. Roy, J. Sandweiss, G. D. Westfall, J. Baudot, B. Erazmus, J. Castillo, Y. V. Zanevski, Malgorzata Anna Janik, G. Igo, J. Carroll, D. M. Moltz, S. W. Wissink, A. A. Kuznetsov, C. O. Blyth, B. Norman, A. Klyachko, A. Maliszewski, H. M. Spinka, V. M. Leontiev, Olivier Ravel, R. Wells, V. A. Nikitin, K. Turner, T. Ullrich, D.E. Greiner, A. C. Saulys, K. E. Shestermanov, D. Cebra, Y. Fisyak, P. Fachini, A. Ogawa, Ian Johnson, V. S. Shvetcov, C. A. Whitten, Z. Z. Xu, T. J.M. Symons, E. Platner, A. Stolpovsky, H. Hümmler, W. Pinganaud, Jay Roberts, P. Leszczynski, S. Lange, T. Herston, S. J. Lindenbaum, Adam Ryszard Kisiel, P. Seyboth, Lee Stuart Barnby, Yu Melnick, L. Kotchenda, W. Christie, Vladimir Tikhomirov, S. Y. Panitkin, R. Bossingham, M. Lopez-Noriega, H. J. Crawford, J. G. Cramer, C. L. Kunz, B. Choi, A. Szanto de Toledo, C. F. Moore, H. G. Ritter, M. Castro, J. Lamas-Valverde, N. Schmitz, A. I. Kulikov, Matthew J. Anderson, R. Bellwied, A. S. Konstantinov, H. Bichsel, G. Odyniec, V. Trofimov, A. P. Meschanin, K. Krueger, Alexander Kovalenko, L. V. Nogach, R. Witt, E. Yamamoto, J. H. Thomas, L. Conin, G. Skoro, A. A.P. Suaide, Christophe Pierre Suire, Masashi Kaneta, M. Heffner, W. M. Zhang, Andrey Vasiliev, J. C. Dunlop, S. Radomski, S. Trentalange, C. E. Allgower, Zubayer Ahammed, V. Ghazikhanian, M. J. LeVine, A. H. Tang, W. A. Love, Joakim Nystrand, M. Cherney, John Z. H. Zhang, Thomas Michael Cormier, Vladimir Petrov, E. G. Judd, P. Nevski, T. Pawlak, David Lynn, L. Madansky, M. Kramer, G. S. Averichev, S. P. Chernenko, W. J. Llope, T. S. McShane, I. Sakrejda, E. Sugarbaker, A. Cardenas, Janet Elizabeth Seger, H. Z. Huang, D. Russ, Yu Chen, Fuqiang Wang, G. S. Mutchler, C. P. Lansdell, R.J.M. Snellings, J. Porter, L. S. Schroeder, Guy Paic, A. Chikanian, S. S. Shimanskii, J. Mitchell, B. Lasiuk, J. Grabski, A. I. Pavlinov, H. Long, Frank Jm Geurts, M. B. Tonjes, V. Morozov, P. Szarwas, V. I. Yurevich, J. N. Marx, D. Hardtke, F. Laue, R. D. Majka, A. V. Brandin, J. Sowinski, B. K. Srivastava, I. M. Vasilevski, J. Berger, J. Gans, E. Finch, Boris Hippolyte, S. E. Vigdor, V. A. Moiseenko, T. J. Humanic, Christian Claude Kuhn, A. Boucham, Marcelo Gameiro Munhoz, D. J. Prindle, I.A. Savin, N. T. Porile, V. B. Dunin, S. Bekele, E. J. Stephenson, M. A. Lisa, Yu A. Matulenko, M. Horsley, B. Stringfellow, A. Ishihara, R. Willson, D. G. Underwood, A. M. VanderMolen, D. Reichhold, T. J. Hallman, A. M. Poskanzer, A. Vanyashin, M. Tokarev, H. H. Wieman, A. S. Hirsch, P. Kravtsov, C. Adler, C. Struck, J. Takahashi, A. Ridiger, Torre Wenaus, Jeffrey G. Reid, Thomas A. Trainor, Morton Kaplan, R. P. Scharenberg, H. S. Matis, C. A. Ogilvie, W. W. Jacobs, D. Seliverstov, A. Schüttauf, Subhasis Chattopadhyay, Peter Martin Jacobs, S. Heppelmann, S. V. Razin, D. Flierl, H. Ward, M. A. C. Lamont, S. B. Nurushev, Z. Milosevich, L. Martin, G. Van Buren, R. K. Kutuev, J. M. Nelson, H. Stroebele, W. Peryt, J. E. Draper, N.D. Gagunashvili, J. P. Coffin, O. V. Rogachevski, V. Perevoztchikov, Alexander Khodinov, L. C. Bland, S. U. Pandey, A. E. Yakutin, J. W. Harris, E. Gushin, G. J. Kunde, P. Yepes, V. Eckardt, A. Yokosawa, G. Eppley, J. Pluta, Q. Li, Gerald W Hoffmann, Mingshui Chen, Thomas LeCompte, W. S. Deng, S. Margetis, O. A. Grachov, V. Grigoriev, R. L. Ray, E. Potrebenikova, V. V. Belaga, T. Ljubicic, F. Retiere, N. G. Minaev, H. Caines, V. L. Rykov, Peter Graham Jones, L. Didenko, J. Schambach, E. L. Hjort, J. Balewski, M. C. de la Barca Sánchez, A. Lebedev, M. M. de Moura, Marie Germain, Claude Andre Pruneau, Y. Panebratsev, G. Rai, A. N. Zubarev, R. Zoulkarneev, J. Klay, Jinghui Yang, G. LoCurto, S. R. Klein, O. Barannikova, D. L. Olson, M. DeMello, M. Oldenburg, V. Emelianov, A. A. Derevschikov, D. Keane, Nikolai Smirnov, R. Stock, L. G. Efimov, Yu. Ivanshin, B. E. Bonner, O. D. Tsai, and M. I. Ferguson
Subjects: Physics, Range (particle radiation), Particle physics, Proton, General Physics and Astronomy, Baryon, Nuclear physics, Pair production, Antiproton, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, Nucleon, Energy (signal processing)
Abstract: We report results on the ratio of mid-rapidity anti-proton to proton yields in Au+Au collisions at $\rts = 130$ GeV per nucleon pair as measured by the STAR experiment at RHIC. Within the rapidity and transverse momentum range of $|y
Published: 2001

4. Theep→e′pηReaction at and above theS11(1535)Baryon Resonance

Author: M. J. Amaryan, M. Taiuti, S. K. Matthews, J. Ficenec, Gyurjyan, W. Kim, A. Longhi, R. A. Schumacher, B. E. Bonner, L. Elouadrhiri, A. P. Freyberger, R. Magahiz, Robert E. Welsh, S. Dytman, S. Whisnant, B. M. Preedom, Federico Ronchetti, R. J. Feuerbach, K. L. Giovanetti, B. Asavapibhop, Michael Dugger, Shalev Gilad, De Sanctis E, A. V. Vlassov, G. Ricco, J. R. Kane, H. Avakian, Philip L. Cole, J. P. Cummings, G. S. Adams, Larry Weinstein, R. A. Miskimen, K. Joo, J. Shaw, R. W. Major, Moshe Gai, M. Kossov, W. J. Briscoe, D. Rowntree, D. Doughty, K. Beard, W. K. Brooks, Friedrich Klein, R. S. Hicks, Brian Raue, Kevin Fissum, Kalvir S. Dhuga, Barry Ritchie, A. Coleman, K. A. Griffioen, M. M. Ito, G. Riccardi, L. M. Qin, J. J. Manak, M. Mirazita, J. M. Laget, C. E. Hyde-Wright, J. W C McNabb, M. S. Ohandjanyan, D. Heddle, C. Salgado, H. R. Weller, Roy Thompson, Curtis Smith, D. P. Weygand, Herbert O. Funsten, S. A. Philips, Patrick Girard, Y. Kuang, H. Egiyan, M. Witkowski, Bernhard Mecking, Mestayer, A. J. Sarty, Jing Zhao, S. Stepanyan, De Vita R, D. G. Jenkins, C. Djalali, Z. L. Zhou, M. Lucas, Airton Deppman, D. I. Sober, A. Shafi, D. Hancock, Avraham Klein, Leskin Ga, M. Battaglieri, S. McAleer, William Bertozzi, E. Polli, E. Anciant, L. Farhi, G. E. Dodge, Daniel S. Carman, V. B. Gavrilov, O. Pogorelko, A. K. Opper, G. Audit, J. W. Price, M. Khandaker, E. Wolin, P. V. Degtyarenko, Y. Patois, Gerard Gilfoyle, Dinko Pocanic, L.C. Dennis, K. Loukachine, N. Pivnyuk, M. Bektasoglu, S. E. Kuhn, S. M. Shuvalov, D. Lawrence, M. Eckhause, J. Napolitano, M. Ripani, M. Guillo, Jochen Heisenberg, Y. V. Efremenko, Volker D. Burkert, M. Sanzone, J. Connelly, Donal Day, M. Sargsyan, G. A. Peterson, M. Guidal, A. V. Skabelin, J. Yun, D. Cords, A. Yegneswaran, A. S. Biselli, Elton Smith, S. Barrow, M. Holtrop, Thomas E. Smith, G. S. Mutchler, M. Anghinolfi, Hall Crannell, D. G. Crabb, James Mueller, S. Taylor, P. D. Rubin, G. Capitani, F. Roudot, D. J. Tedeschi, Y. G. Sharabian, M. Spraker, Sapunenko, R. C. Minehart, M. Klusman, Nicola Bianchi, S. Boiarinov, C. A. Meyer, J. S. McCarthy, B. Carnahan, Thierry Auger, A. R. Reolon, Michael Vineyard, C. Marchand, P. Rossi, P. Dragovitsch, F. W. Hersman, R. A. Demirchyan, T. Y. Tung, J. Hardie, K. Y. Kim, Muccifora, R. A. Niyazov, John T. O'Brien, P. Corvisiero, K. S. Egiyan, Calarco, P. Stoler, and K. Hicks
Subjects: Baryon, Physics, Nuclear physics, Particle physics, Photon, Amplitude, Angular distribution, Meson, Momentum transfer, General Physics and Astronomy, Resonance, Invariant (physics), Nuclear Experiment
Abstract: New cross sections for the reaction e p-->e p eta are reported for total center of mass energy W = 1.5--1.86 GeV and invariant momentum transfer Q2 = 0.25--1.5 (GeV/c)(2). This large kinematic range allows extraction of important new information about response functions, photocouplings, and eta N coupling strengths of baryon resonances. Newly observed structure at W approximately 1.65 GeV is shown to come from interference between S and P waves and can be interpreted with known resonances. Improved values are derived for the photon coupling amplitude for the S11(1535) resonance.
Published: 2001

5. Elliptic Flow inAu+AuCollisions at√sNN=130GeV

Author: N. Stone, Christophe Pierre Suire, A. Lebedev, B. Miller, M. M. de Moura, M. Dialinas, P. Middlekamp, J. Scheblien, V. Ghazikhanian, A. Etkin, A. H. Tang, A. P. Meschanin, R.Kh. Kutuev, J. Berger, J. L. Romero, V. Fine, J. Engelage, T. J. Humanic, Peter J. Lindstrom, D. Zimmerman, I.A. Savin, N. T. Porile, Yu A. Matulenko, M. Horsley, Thomas LeCompte, B. Stringfellow, J. Sedlmeir, L. Smykov, E. Finch, T. S. McShane, J. W. Harris, Joakim Nystrand, V. B. Dunin, J. Grabski, P. Seyboth, D. Dayton, C. J. Liaw, R. Bossingham, J. N. Marx, C. Drancourt, S. Tonse, W. S. Deng, J. G. Cramer, R. A. Scheetz, A. Stolpovsky, H. Hümmler, L. Kotchenda, G. Koehler, E. Gushin, G. J. Kunde, P. Yepes, V. Eckardt, M. Kramer, A. I. Pavlinov, Y. Panebratsev, D. Grosnick, Granville Ott, G. Eppley, A. V. Brandin, V. Trofimov, J. M. Landgraf, M. Strikhanov, K. Krueger, M. B. Tonjes, E. I. Shakaliev, A. Yokosawa, Jinghui Yang, E. Sugarbaker, J. Hunter, H. Z. Huang, V. Morozov, A. Tarchini, S. V. Razin, K. Wilson, G. Rai, Y. Shi, G. Van Buren, J. M. Nelson, P. A. DeYoung, J. Pluta, C. Roy, H. Stroebele, J. Carroll, C. Byrd, N. Xu, G. D. Westfall, D. Padrazo, R. Wells, C. Struck, W. Pinganaud, D. Hardtke, F. Laue, J.F. Amsbaugh, Jay Roberts, N. Adams, David Fritz, J. Sandweiss, G. LoCurto, A. C. Saulys, S. R. Klein, C. E. Allgower, R. D. Majka, J. Zhu, Sergey Voloshin, J. Sowinski, Matthew Nguyen, W. Peryt, J. Takahashi, J. Wolf, C. Feliciano, Y. Fisyak, L. Greiner, K. J. Foley, J. Schambach, E. L. Hjort, S. Pirogov, A. Ogawa, Ian Johnson, Krista M. Marks, S. E. Vigdor, Vladimir Petrov, C. L. Kunz, Z. Li, O. Barannikova, D. L. Olson, F. P. Brady, Gerald W Hoffmann, S. P. Chernenko, D. Seliverstov, A. Schüttauf, Christian Claude Kuhn, W. J. Llope, Q. Li, C. O. Blyth, C. F. Moore, M. Cherney, H. Fessler, W. Christie, Thomas Michael Cormier, D.E. Greiner, T. Krupien, Torre Wenaus, Masashi Kaneta, Ross Schlueter, W. M. Zhang, Andrey Vasiliev, D. Hill, Richard C. Jared, M. Calderón de la Barca Sánchez, R. Weidenbach, T. Nguyen, A. Cardenas, Peter Martin Jacobs, N. Schmitz, S. Chatopadhyay, P. Nevski, M. Lopez-Noriega, A. Klyachko, R. Witt, E. Yamamoto, J. Klay, Thomas A. Trainor, W. R. Edwards, P. Sappenfield, N.D. Gagunashvili, J. Baudot, E. A. Matyushevski, P. Kuczewski, J. C. Dunlop, A. A. Derevschikov, K. Olchanski, V. I. Danilov, C. P. Lansdell, Wilfred J. Braithwaite, E. Mogavero, R.J.M. Snellings, Janet Elizabeth Seger, J. Lin, M. A. C. Lamont, S. B. Nurushev, Z. Milosevich, B. Lasiuk, J. Wisdom, Y. V. Zanevski, F. Retiere, W. Hunt, V. Kormilitsyne, D. Russ, B. E. Bonner, J. T.M. Chrin, G. S. Mutchler, H. Diaz, J. R. Hall, Zubayer Ahammed, G. A. Ososkov, M. J. LeVine, B. Norman, J. Gross, H. Long, K. Bradley, Yu Chen, Wen-Chang Chen, N. G. Minaev, O. D. Tsai, R. P. Scharenberg, Marie Germain, R. Seymour, M. A. Howe, B. Choi, R. Marstaller, W. Betts, Vladimir Tikhomirov, Salahuddin Ahmad, I. Polk, H. S. Matis, G. C. Harper, A. S. Hirsch, P. Kravtsov, A. Maliszewski, Alexander Kovalenko, L. V. Nogach, L. C. Bland, S. Bennett, H. J. Crawford, I. Vakula, C. Adler, F. S. Bieser, L. Wood, A. N. Zubarev, C. A. Ogilvie, G. Brugalette, V. S. Shvetcov, L. S. Schroeder, J. Meier, H. Liu, S. U. Pandey, A. E. Yakutin, I. Flores, Morton Kaplan, V. Perevotchikov, C. A. Whitten, M. Pentia, Marek Gazdzicki, L. Lakehal-Ayat, D. Lopiano, S. Trentalange, A. Ridiger, W. W. Jacobs, M. I. Ferguson, J. Lamas-Valverde, C. Gojak, M. Botlo, Guy Paic, I. Sakrejda, T. Ngo, E. Platner, B. Minor, V. Lindenstruth, V. A. Nikitin, S. Heppelmann, D. Flierl, Ma Bloomer, John Z. H. Zhang, A. Chikanian, S. S. Shimanskii, J. Mitchell, E. G. Judd, L. Martin, Jeffrey G. Reid, B. K. Srivastava, I. M. Vasilevski, K. E. Shestermanov, V. V. Belaga, Lincoln D. Carr, J. Gans, S. Lange, L. Arnold, Boris Hippolyte, G. Skoro, M. Heffner, J. E. Draper, J. Puskar-Pasewicz, R. Morse, V. Grigoriev, J. P. Coffin, O. V. Rogachevski, N. Bouillo, M. DeMello, S. J. Lindenbaum, N. Mikhalin, A. Boucham, H. Ward, M. Oldenburg, Peter Graham Jones, R. L. Ray, V. Emelianov, D. Keane, A. R. Baldwin, A. A. P. Suaide, L. Didenko, Damien Bonnet, Nikolai Smirnov, R. Stock, S. Y. Panitkin, E. Potrebenikova, W. J. Leonhardt, S. Bekele, S. Bouvier, V. P. Kenney, L. G. Efimov, Frank Jm Geurts, Yu. Ivanshin, J. Castillo, S. W. Wissink, R. L. Brown, W. Dominik, P. Jensen, A. Ishihara, T. Ljubicic, Alexander Khodinov, Robert Stone, M. Tokarev, G. Guilloux, Robert R. J. Maier, D. DiMassimo, E. Anderssen, A. M. VanderMolen, H. H. Wieman, H. Caines, S. Jacobson, D. Shuman, R. Willson, D. G. Underwood, J. Wirth, D. Reichhold, T. J. Hallman, T. J. M. Symons, K. Turner, A. Szanto de Toledo, A. M. Poskanzer, J. Tarzian, P. He, K. Solberg, T. Pawlak, A. Vanyashin, Z. Sandler, B. Caylor, R. S. Longacre, V. L. Rykov, J. Porter, G. Igo, J. Seyboth, P. Fachini, D. D. Weerasundara, Mingshui Chen, M. Grau, S. Margetis, O. A. Grachov, M. Schulz, J. R. Lutz, Rainer Arno Ernst Renfordt, J. Balewski, H. G. Ritter, Claude Andre Pruneau, H. Arnesen, R. Zoulkarneev, R. Bellwied, A. S. Konstantinov, K. H. Ackermann, D. M. Moltz, A. A. Kuznetsov, Ivan Kotov, T. Noggle, V. M. Leontiev, Olivier Ravel, J. Whitfield, T. Ullrich, D. Roehrich, B. Erazmus, Z. Z. Xu, D. Cebra, C. Consiglio, M. Beddo, Yu Melnick, P. Leszczynski, J. Bercovitz, T. Herston, J. Riso, Lee Stuart Barnby, V. A. Moiseenko, Marcelo Gameiro Munhoz, D. J. Prindle, E. J. Stephenson, M. A. Lisa, W. A. Love, T. Nussbaum, Daniel Ferenc, Fuqiang Wang, H. Bichsel, G. Odyniec, V. I. Yurevich, E. S. Braithwaite, J. Boehm, T. Eggert, David Lynn, L. Madansky, R. Sanchez, J. Dioguardi, J. H. Thomas, L. Conin, G. Visser, G. S. Averichev, C. P. McParland, H. M. Spinka, J. Rasson, Chinh Vu, and Matthew J. Anderson
Subjects: Physics, Particle physics, Time projection chamber, Hadron, Elliptic flow, General Physics and Astronomy, Observable, Particle accelerator, Charged particle, law.invention, Nuclear physics, law, Pseudorapidity, Nuclear Experiment, Relativistic Heavy Ion Collider
Abstract: Elliptic flow from nuclear collisions is a hadronic observable sensitive to the early stages of system evolution. We report first results on elliptic flow of charged particles at midrapidity in Au+Au collisions at √(sNN) = 130 GeV using the STAR Time Projection Chamber at the Relativistic Heavy Ion Collider. The elliptic flow signal, v₂, averaged over transverse momentum, reaches values of about 6% for relatively peripheral collisions and decreases for the more central collisions. This can be interpreted as the observation of a higher degree of thermalization than at lower collision energies. Pseudorapidity and transverse momentum dependence of elliptic flow are also presented.
Published: 2001

6. Spin Transfer in InclusiveΛ0Production by Transversely Polarized Protons at200GeV/c

Author: Fujio Takeutchi, S. Yamashita, D. Grosnick, D. Hill, N. Tamura, Andrey Vasiliev, Jay Roberts, B. E. Bonner, V. L. Solovyanov, S. B. Nurushev, VL Rykov, K. Kuroda, P. Schiavon, Akira Masaike, Alexander Lincoln Read, A. P. Meschanin, Nural Akchurin, D. H. Miller, A. Yokosawa, Kozo Miyake, H. M. Spinka, Y. Goto, T. Nagamine, Francesca Nessi-Tedaldi, Yoshitaka Itow, D. I. Patalakha, M. Laghai, Kazuo Iwatani, J. L. White, H. Funahashi, Yu A. Matulenko, T. Mäki, H. En'yo, G. Salvato, F. Lehar, T. Yoshida, J. Cranshaw, Y. Ohashi, J. Bystricky, F. Luehring, A. Michalowicz, N. I. Belikov, Aldo Penzo, C. Nguyen, S. Makino, A. A. Derevschikov, G. F. Rappazzo, D. G. Underwood, G. Pauletta, K. Imai, J. D. Cossairt, Anna Zanetti, Yasar Onel, D. Lopiano, Ryuichi Takashima, L. van Rossum, David H. Adams, T. Iijima, Marzio Nessi, J. Skeens, A. de Lesquen, Norio Saito, Robert Stanek, M. D. Corcoran, O. A. Grachov, and A. Bravar
Subjects: Physics, Quantum chromodynamics, Particle physics, Proton, Quark model, Hyperon, Physics::Accelerator Physics, General Physics and Astronomy, Parton, Spin-flip, Multiplicity (chemistry), Nuclear Experiment, Lambda
Abstract: Surprisingly large polarizations in hyperon production by unpolarized protons have been known for a long time. The spin dynamics of the production process can be further investigated with polarized beams. Recently, a negative asymmetry ${A}_{N}$ was found in inclusive ${\ensuremath{\Lambda}}^{0}$ production with a $200\mathrm{GeV}/c$ transversely polarized proton beam. The depolarization ${D}_{\mathrm{NN}}$ in $p\ensuremath{\uparrow}+p\ensuremath{\rightarrow}{\ensuremath{\Lambda}}^{0}+X$ has been measured with the same beam over a wide ${x}_{F}$ range and at moderate ${p}_{T}$. ${D}_{\mathrm{NN}}$ reaches positive values of about 30% at high ${x}_{F}$ and ${p}_{T}\ensuremath{\sim}1.0\mathrm{GeV}/c$. This result shows a sizable spin transfer from the incident polarized proton to the outgoing ${\ensuremath{\Lambda}}^{0}$.
Published: 1997

7. Measurement of lowmtKs0production from 14.6AGeV/cSi beams on a Pb target

Author: Y. Zhu, L. Madansky, K. Zhao, G. S. Mutchler, A. Etkin, S.E. Eiseman, E. Efstathiadis, M. Kramer, W. A. Love, J.M. Clement, K. J. Foley, T.W. Morris, C.N. Chiou, R. W. Hackenburg, B. E. Bonner, T. J. Hallman, A. C. Saulys, J. A. Buchanan, C.S. Chan, E. Platner, S. J. Lindenbaum, Salahuddin Ahmad, and R. S. Longacre
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Silicon, chemistry, chemistry.chemical_element, Production (computer science), Rapidity, Atomic physics
Abstract: We present the measurement of low ${\mathit{m}}_{\mathit{tK}\mathit{s}}^{0}$ production in the rapidity range 2.2y2.6 with silicon beams on a lead target. We have selected central events with a cross section of approximately 280 mb and compare with a low kaon ${\mathit{m}}_{\mathit{t}}$ enhancement as reported earlier.
Published: 1995

8. Analyzing Power Measurement in InclusiveΛ0Production with a200GeV/cPolarized Proton Beam

Author: J. Skeens, A. Bravar, D. I. Patalakha, S. Yamashita, F. Nessi-Tedaldi, Kozo Miyake, T. Yoshida, Yoshitaka Itow, M. D. Corcoran, Y. Goto, K. W. Krueger, N. Akchurin, A. L. Read, O. A. Grachov, J. Bystricky, Jay Roberts, Yasar Onel, G. Pauletta, Y. Ohashi, J. L. White, M. Laghai, G. F. Rappazzo, D. G. Underwood, H. Funahashi, D. Lopiano, H. En'yo, K. Imai, A. Michalowicz, N. I. Belikov, P. Schiavon, F. Lehar, T. Iijima, Anna Zanetti, A. Yokosawa, T. Maki, A. P. Meschanin, M. Nessi, G. Salvato, F. Luehring, Fujio Takeutchi, D. Grosnick, D. Hill, J. Cranshaw, Andrey Vasiliev, J. D. Cossairt, Aldo Penzo, H. M. Spinka, David Miller, Yu A. Matulenko, C. Nguyen, V. L. Solovyanov, T. Nagamine, S. B. Nurushev, K. Kuroda, Kazuo Iwatani, Akira Masaike, A. A. Derevschikov, S. Makino, VL Rykov, J. Langland, A. de Lesquen, Norio Saito, Robert Stanek, D. L. Adams, Ryuichi Takashima, L. van Rossum, and B. E. Bonner
Subjects: Quantum chromodynamics, Physics, Particle physics, Transverse momentum, Hyperon, Theoretical models, General Physics and Astronomy, Lambda, Lambda baryon
Abstract: The considerable polarization of hyperons produced at high {ital x}{sub {ital F}} has been known for a long time and has been interpreted with various theoretical models in terms of the constituents` spin. Recently, the analyzing power in inclusive {Lambda}{sup 0} hyperon production has also been measured using the 200 GeV/{ital c} Fermilab polarized proton beam. The covered kinematic range is 0.2{le}{ital x}{sub {ital F}}{le}1.0 and 0.1{le}{ital p}{sub {ital T}}{le}1.5 GeV/{ital c}. The data indicate a negative asymmetry at large {ital x}{sub {ital F}} and moderate {ital p}{sub {ital T}}. These results can further test the current ideas on the underlying mechanisms for hyperon polarization. Copyright {ital 1995} {ital The} {ital American} {ital Physical} {ital Society}.
Published: 1995

9. K*0production in Cu+Cu and Au+Au collisions atsNN=62.4GeV and 200 GeV

Author: M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, I. Alekseev, J. Alford, B. D. Anderson, C. D. Anson, D. Arkhipkin, G. S. Averichev, J. Balewski, 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, 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. Calderon de la Barca Sanchez, 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, 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, O. Evdokimov, 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, S. M. Guertin, A. Gupta, W. Guryn, B. Haag, 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, B. Huang, H. Z. Huang, T. J. Humanic, L. Huo, G. Igo, P. Jacobs, W. W. Jacobs, 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, I. Koralt, L. Koroleva, 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. M. 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, E. V. Lukashov, X. Luo, 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, B. Morozov, 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, V. Okorokov, E. W. Oldag, 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, H. Qiu, R. Raniwala, S. Raniwala, R. L. Ray, R. Redwine, R. Reed, 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, D. N. Svirida, 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, M. van Leeuwen, 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. L. Wang, Y. Wang, G. Webb, J. C. Webb, G. D. Westfall, C. Whitten, H. Wieman, S. W. Wissink, R. Witt, Y. F. Wu, W. Xie, H. Xu, 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, J. B. Zhang, 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: Physics, Nuclear and High Energy Physics, Meson, 010308 nuclear & particles physics, Hadron, Elliptic flow, Elementary particle, Fermion, 01 natural sciences, Nuclear physics, Particle decay, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We report on K*(0) production at midrapidity in Au + Au and Cu + Cu collisions at root s(NN) = 62.4 and 200 GeV collected by the Solenoid Tracker at the Relativistic Heavy Ion Collider detector. The K*(0) is reconstructed via the hadronic decays K*(0) -> K+pi(-) and (K*(0)) over bar -> K+pi(-). Transverse momentum, p(T), spectra are measured over a range of p(T) extending from 0.2 GeV/c up to 5 GeV/c. The center-of-mass energy and system size dependence of the rapidity density, dN/dy, and the average transverse momentum, , are presented. The measured N(K*(0))/N(K) and N(phi)/N(K*(0)) ratios favor the dominance of rescattering of decay daughters of K*(0) over the hadronic regeneration for the K*(0) production. In the intermediate p(T) region (2.0 < p(T) < 4.0 GeV/c), the elliptic flow parameter, v(2), and the nuclear modification factor, R-CP, agree with the expectations from the quark coalescence model of particle production.
Published: 2011

10. Pion femtoscopy inp + pcollisions ats=200GeV

Author: M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, I. Alekseev, J. Alford, B. D. Anderson, D. Arkhipkin, G. S. Averichev, J. Balewski, 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, 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, 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, O. Evdokimov, 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, S. M. Guertin, A. Gupta, N. Gupta, W. Guryn, B. Haag, 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, B. Huang, H. Z. Huang, T. J. Humanic, L. Huo, G. Igo, P. Jacobs, W. W. Jacobs, 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, I. Koralt, L. Koroleva, 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. M. 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, E. V. Lukashov, X. Luo, 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, B. Morozov, 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, V. Okorokov, E. W. Oldag, 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, H. Qiu, R. Raniwala, S. Raniwala, R. L. Ray, R. Redwine, R. Reed, 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, D. N. Svirida, 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, M. van Leeuwen, 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. L. Wang, Y. Wang, G. Webb, J. C. Webb, G. D. Westfall, C. Whitten, H. Wieman, S. W. Wissink, R. Witt, Y. F. Wu, W. Xie, H. Xu, 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, J. B. Zhang, 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: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Elementary particle, Context (language use), Bose–Einstein correlations, 01 natural sciences, Nuclear physics, Pion, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: The STAR Collaboration at the BNL Relativistic Heavy Ion Collider has measured two-pion correlation functions from p + p collisions at root s = 200 GeV. Spatial scales are extracted via a femtoscopic analysis of the correlations, though this analysis is complicated by the presence of strong nonfemtoscopic effects. Our results are put into the context of the world data set of femtoscopy in hadron-hadron collisions. We present the first direct comparison of femtoscopy in p + p and heavy ion collisions, under identical analysis and detector conditions.
Published: 2011

11. Erratum: Transverse Momentum and Centrality Dependence of High-pTNonphotonic Electron Suppression inAu+AuCollisions atsNN=200 GeV[Phys. Rev. Lett.98, 192301 (2007)]

Author: B. Haag, V. Ghazikhanian, A. Ridiger, L. K. Mangotra, P. Kurnadi, R. Manweiler, W. Christie, I. A. Qattan, Z. Chajecki, M. R. Cosentino, J. C. Dunlop, A. Kechechyan, Andre Mischke, A. I. Kulikov, C. Perkins, T. Peitzmann, F. Benedosso, Zubayer Ahammed, M. J. LeVine, C-Q. Li, M. J. Horner, Marek Bombara, Jana Bielcikova, J. L. Romero, Christine Nattrass, S. Heppelmann, R. P. Scharenberg, Christina Markert, W. M. Zhang, Andrey Vasiliev, Sergey Voloshin, H. S. Matis, T. G. Dedovich, R.J.M. Snellings, G. Eppley, G. Lin, R. V. Cadman, Jianhong Wu, P. S. Sazhin, E. Finch, L. Martin, Janet Elizabeth Seger, A. G. Knospe, Y. Wang, W. T. Waggoner, S. C. Phatak, A. Kumar, J. Speltz, J. Pluta, W. W. Jacobs, M. Kopytine, J. Fu, L. Liu, M. Tokarev, A. M. Hoffman, J. Baudot, J. Lauret, Sukalyan Chattopadhyay, Rene Bellwied, A. Stadnik, M. C. Suarez, L. Kotchenda, R. E. Tribble, A. Feng, D. J. Hofman, T. D. S. Stanislaus, H. H. Wieman, R. Lednicky, C. J. McClain, T. Kollegger, A. I. Pavlinov, M. DePhillips, Jay Roberts, N. S. Nepali, J. W. Mitchell, Gerald W Hoffmann, V. Fine, Lee Stuart Barnby, J. Engelage, Q. H. Xu, J. Takahashi, F. Liu, M. A. C. Lamont, A. V. Brandin, Jake Y. Chen, M. S. Ganti, K. Krueger, Ilya Selyuzhenkov, P. Djawotho, S. B. Nurushev, Jaroslav Bielcik, Premomoy Ghosh, T. J. Hallman, S. E. Vigdor, Christian Claude Kuhn, J. P. Coffin, M. Sarsour, Anthony Robert Timmins, Adam Ryszard Kisiel, R. N. Singaraju, A. P. Meschanin, H. J. Crawford, Michal Sumbera, D. Magestro, A. A. P. Suaide, B. D. Anderson, J. M. Landgraf, Mirko Planinic, M. R. Dutta Mazumdar, T. P. Burton, C. Roy, M. Strikhanov, F. Laue, R. D. Majka, P. Sorensen, O. V. Rogachevskiy, N. Schmitz, J. L. Drachenberg, E. Shahaliev, J. Sowinski, N. Xu, R. Fatemi, J. W. Harris, P. Filip, S. L. Blyth, M. Shao, G. Van Buren, Y. P. Lu, H. Zhang, M. S. Daugherity, Tai Sakuma, W. A. Love, Jie Liu, I. Sakrejda, F. Du, Camelia Mironov, A. M. Vander Molen, Thomas Dietel, E. Hjort, Y. F. Wu, L. V. Nogach, D. D. Koetke, G. Odyniec, J. Sandweiss, Y. Li, S. M. Guertin, J. Schambach, V. Perevoztchikov, N. T. Porile, J. X. Zuo, V. I. Kravtsov, Manish Sharma, R. Witt, H. Z. Huang, S. Vokal, S. Mioduszewski, V. Yu Khodyrev, S. Timoshenko, Sunil Dogra, E. W. Hughes, J. Callner, Madan M. Aggarwal, B. K. Srivastava, I. M. Vasilevski, T. W. Ludlam, Qian Yue, M. L. Miller, Fuqiang Wang, E. Potrebenikova, D. P. Mahapatra, Beomkyu Kim, Debasish Das, Y. Bai, R. S. Hollis, Anju Bhasin, S. LaPointe, O. G. Grebenyuk, D. Staszak, R. S. Longacre, M. Cherney, S. Bhardwaj, J. M. Nelson, Thomas Michael Cormier, Boris Hippolyte, B. V. K. S. Potukuchi, R. Varma, K. Kang, V. I. Yurevich, S. W. Wissink, A. A. Kuznetsov, K. L. Kowalik, Yu A. Matulenko, A. Wetzler, G. D. Westfall, W. L. Zhan, T. Ljubicic, J. S. Wang, J. Kiryluk, A. Lebedev, Frank Simon, M. M. de Moura, Y. G. Ma, W. Peryt, J. H. Chen, H. Gos, Raghunath Sahoo, Rajarshi Ray, B. Stringfellow, M. Botje, P. Yepes, V. Eckardt, T. S. McShane, Y. Zhang, A. Bellingeri-Laurikainen, Vitaly Okorokov, Y. Fisyak, J. Putschke, Petr Jákl, Bernd Surrow, G. Igo, M. Oldenburg, J. Ulery, J. W. Watson, Edmundo Javier Garcia-Solis, P. Chaloupka, S. Baumgart, D. A. Morozov, Nikola Poljak, Guo-Liang Ma, S. Lehocka, A. Ogawa, J. Bouchet, Pawan Kumar Netrakanti, W. J. Llope, H. F. Chen, Thomas A. Trainor, W. R. Edwards, Renaud Vernet, A. H. Tang, P. Seyboth, S. Trentalange, J. Millane, H. G. Ritter, C. A. Gagliardi, N. van der Kolk, H. Liu, A. Chikanian, H. Caines, Sudhir Raniwala, S. Kabana, Y. P. Viyogi, M. Pachr, Y. Zhao, B. I. Abelev, E. M. Kislov, J. E. Draper, J. G. Cramer, T. W. Henry, L. Gaillard, Z. P. Zhang, T. J. Humanic, D. Arkhipkin, A. Hamed, A. Shabetai, G. Wang, S. S. Shimanskiy, D. Relyea, Morton Kaplan, X. Z. Cai, A. Iordanova, Z. J. Sun, X. M. Sun, A. S. Hirsch, P. M. Jacobs, P. Kravtsov, N. G. Minaev, Bedangadas Mohanty, Basanta Kumar Nandi, X. L. Wang, A. M. Poskanzer, C. A. Whitten, L. Ruan, S. Margetis, A. Rose, S. Lange, S. J. Lindenbaum, M. van Leeuwen, X. Dong, Y. Panebratsev, L. C. Bland, D. Grosnick, V. Kouchpil, S. K. Pal, M. Bystersky, A. Bravar, E. P. Sichtermann, M. Calderon De La Barca Sanchez, J. Balewski, Rashmi Raniwala, Z. Z. Xu, O. Catu, Claude Andre Pruneau, Sadhana Dash, I. K. Yoo, Y. G. Gorbunov, Nikita Smirnov, T. Ullrich, A. Kocoloski, R. Zoulkarneev, Q. Li, M. Heinz, E. G. Judd, 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, V. B. Dunin, J. Fedorisin, A. Szanto de Toledo, J. Kapitan, T. Pawlak, X. Lin, Russell Richard Betts, D. G. Underwood, J. Cheng, T. J. M. Symons, J. H. Thomas, D. Kettler, G. S. Averichev, H. M. Spinka, A. N. Zubarev, P. Fachini, K. S.F.F. Guimaraes, H. Bichsel, Y. Zoulkarneeva, C. Zhong, M. Potekhin, S. R. Klein, David Lynn, T. Tarnowsky, N. L. Subba, M. J. Russcher, O. Barannikova, D. L. Olson, J. C. Webb, A. A. Derevschikov, V. V. Belaga, F. Jia, W. He, Peter Graham Jones, L. Didenko, J. G. Ma, Jing Zhou, B. Erazmus, Neeraj Gupta, D. Cebra, M. Estienne, Yu Melnick, S. U. Chung, Marcelo Gameiro Munhoz, D. J. Prindle, and M. A. Lisa
Subjects: Nuclear physics, Physics, Quantum electrodynamics, Transverse momentum, General Physics and Astronomy, Elementary particle, Electron, Fermion, Centrality, Lepton
Published: 2011

12. Analyzing power measurement ofppelastic scattering in the Coulomb-nuclear interference region with the 200-GeV/cpolarized-proton beam at Fermilab

Author: Francesca Nessi-Tedaldi, A. Michalowicz, K. Kuroda, Tatsushi Shima, R. Giacomich, G. Salvato, T. Nagamine, Fujio Takeutchi, Aldo Penzo, S. Yamashita, D. Grosnick, A. Yokosawa, F. Luehring, VL Rykov, J. Langland, T. Maki, Anna Zanetti, D. Hill, G. Pauletta, J. Skeens, C. Nguyen, L. Van Rossum, Ryuichi Takashima, Kozo Miyake, Y. Goto, B. E. Bonner, Norio Saito, A. P. Meschanin, Akira Masaike, M. D. Corcoran, J. L. White, A. de Lesquen, Marzio Nessi, P. Schiavon, J. D. Cossairt, D. I. Patalakha, Yasar Onel, H. Funahashi, J. Bystricky, Yu.A. Matulenko, David Miller, M. Laghai, N. Akchurin, Y. Ohashi, Robert Stanek, F. Lehar, G. F. Rappazzo, A. A. Derevschikov, D. G. Underwood, A. Bravar, K. Imai, A. N. Vasiliev, V. L. Solovyanov, S. B. Nurushev, J. Cranshaw, Yoshitaka Itow, H. M. Spinka, Kazuo Iwatani, D. Lopiano, S. Makino, A. L. Read, and Jay Roberts
Subjects: Physics, Elastic scattering, Proton, Scattering, Computer Science::Information Retrieval, Nuclear Theory, Hadron, Momentum transfer, ENERGY, Nuclear physics, GEV-C, Amplitude, High Energy Physics::Experiment, Fermilab, Spin-flip, Nuclear Experiment, CROSS-SECTION
Abstract: The analyzing power [ital A][sub [ital N]] of proton-proton elastic scattering in the Coulomb-nuclear interference region has been measured using the 200-GeV/[ital c] Fermilab polarized proton beam. A theoretically predicted interference between the hadronic non-spin-flip amplitude and the electromagnetic spin-flip amplitude is shown for the first time to be present at high energies in the region of 1.5[times]10[sup [minus]3] to 5.0[times]10[sup [minus]2] (GeV/[ital c])[sup 2] four-momentum transfer squared, and our results are analyzed in connection with theoretical calculations. In addition, the role of possible contributions of the hadronic spin-flip amplitude is discussed.
Published: 1993

13. Differential cross section forn-pelastic scattering in the angular region 50°<θ*<180° at 459 MeV

Author: J. E. Simmons, P. J. Riley, B. E. Bonner, M. L. Evans, G. Glass, L. C. Northcliffe, C. W. Bjork, John C. Hiebert, R. A. Kenefick, and Mahavir Jain
Subjects: Renormalization, Nuclear reaction, Physics, Coupling constant, Elastic scattering, Nuclear and High Energy Physics, Particle physics, Deuterium, Scattering, Partial wave analysis, Charged particle
Abstract: The differential cross section for n-p elastic scattering at 459 MeV in the c.m. angular region 50\ifmmode^\circ\else\textdegree\fi{}${\mathrm{\ensuremath{\theta}}}^{\mathrm{*}}$180\ifmmode^\circ\else\textdegree\fi{} has been measured with high statistical precision and good relative accuracy. The uncertainty in the absolute normalization (based on the simultaneously measured yield of deuterons from the np\ensuremath{\rightarrow}d${\mathrm{\ensuremath{\pi}}}^{0}$ reaction) was initially estimated to be \ensuremath{\sim}7%. The results agree well with back-angle data obtained independently at LAMPF but less well with results from Saclay and the Princeton-Pennsylvania Accelerator and, except for a normalization difference of 10%, are fairly well represented by a phase-shift fit. The pole-extrapolation method of Chew was used to extract the pion-nucleon coupling constant ${\mathit{f}}^{2}$ from the back-angle portion of the data. The value obtained, ${\mathit{f}}^{2}$=0.069, is somewhat smaller than the values 0.0735--0.0790 obtained from analyses of pion-nucleon scattering, tending to confirm the need for an upward renormalization of the angular distribution by \ensuremath{\sim}10%.
Published: 1993

14. Measurement of the Bottom Quark Contribution to Nonphotonic Electron Production inp+pCollisions ats=200 GeV

Author: M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, I. Alekseev, J. Alford, B. D. Anderson, Daniel Anson, D. Arkhipkin, G. S. Averichev, J. Balewski, 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, 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, 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, O. Evdokimov, 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, S. M. Guertin, A. Gupta, W. Guryn, B. Haag, 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, B. Huang, H. Z. Huang, T. J. Humanic, L. Huo, G. Igo, P. Jacobs, W. W. Jacobs, 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, V. Kizka, S. R. Klein, A. G. Knospe, A. Kocoloski, D. D. Koetke, T. Kollegger, J. Konzer, I. Koralt, L. Koroleva, 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. M. Li, G. Lin, X. Y. 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, E. V. Lukashov, X. Luo, 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, B. Morozov, 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, V. Okorokov, E. W. Oldag, 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, H. Qiu, R. Raniwala, S. Raniwala, R. L. Ray, R. Redwine, R. Reed, 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, D. N. Svirida, 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, M. van Leeuwen, 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. L. Wang, Y. Wang, G. Webb, J. C. Webb, G. D. Westfall, C. Whitten, H. Wieman, S. W. Wissink, R. Witt, Y. F. Wu, W. Xie, H. Xu, 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, J. B. Zhang, 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: Physics, Quark, Semileptonic decay, Particle physics, Meson, 010308 nuclear & particles physics, High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, Hadron, Quark model, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Bottom quark, Nuclear physics, 0103 physical sciences, D meson, High Energy Physics::Experiment, B meson, Nuclear Experiment, 010306 general physics
Abstract: The contribution of B meson decays to nonphotonic electrons, which are mainly produced by the semileptonic decays of heavy-flavor mesons, in p + p collisions at root s = 200 GeV has been measured using azimuthal correlations between nonphotonic electrons and hadrons. The extracted B decay contribution is approximately 50% at a transverse momentum of p(T) >= 5 GeV/c. These measurements constrain the nuclear modification factor for electrons from B and D meson decays. The result indicates that B meson production in heavy ion collisions is also suppressed at high p(T).
Published: 2010

15. Azimuthal di-hadron correlations ind+Au and Au + Au collisions atsNN=200GeV measured at the STAR detector

Author: J. Engelage, A. Geromitsos, Premomoy Ghosh, J. M. Landgraf, L. Kotchenda, M. Strikhanov, J. Konzer, Ki-Seok Choi, J. Sandweiss, K. Kang, P. Kurnadi, M. J. Horner, D. Thein, G. Eppley, Sergey Timoshenko, F. Liu, T. J. Humanic, H. Bichsel, G. Odyniec, Y. Zoulkarneeva, Jorn Henning Putschke, W. Xu, Wolfgang Korsch, Z. Xu, G. Lin, N. Xu, E. P. Sichtermann, A. V. Brandin, P. Filip, W. Zhou, Zhenyu Zhang, J. Pluta, Z. J. Sun, Qian Yue, A. Szanto de Toledo, J. Kapitan, A. R. Timmins, S. M. Dogra, W. Li, J. Balewski, Rashmi Raniwala, Sergey Voloshin, M. Tokarev, S. M. Guertin, P. Pile, G. D. Westfall, Christine Nattrass, Q. Wang, Claude Andre Pruneau, Xiaofeng Zhu, A. Ogawa, H. F. Chen, Thomas A. Trainor, R. Varma, C-Q. Li, Alexandre Alarcon Do Passo Suaide, Anik Gupta, T. Pawlak, A. V. Alakhverdyants, R. P. Scharenberg, Christina Markert, M. K. Mitrovski, James Prewitt Hays-Wehle, G. Wang, T. R. Schuster, Yu A. Matulenko, Shoko Sakai, H. S. Matis, T. Ullrich, R. D. Majka, D. P. Mahapatra, B. S. Page, J. W. Harris, P. Seyboth, E. J. Garcia-Solis, T. G. Dedovich, E. Hjort, R. Zoulkarneev, Russell Richard Betts, D. P. Kikola, W. W. Jacobs, J. Sowinski, J. Lauret, T. Sakuma, A. K. Bhati, Ermes Braidot, D. Keane, T. D. S. Stanislaus, Y. F. Wu, D. G. Underwood, L. Eun, B. Stringfellow, S. C. Phatak, M. J. Skoby, Frank Jm Geurts, J. Y. Chen, Jana Bielcikova, Basanta Kumar Nandi, S. Margetis, R. F. Clarke, J. Schambach, Nikolai Smirnov, R. Stock, L. G. Efimov, R. Derradi de Souza, Anju Bhasin, Adam Ryszard Kisiel, R. P. Redwine, E. Elhalhuli, P. Sorensen, C-H. Lee, T. K. Nayak, H. H. Wieman, T. S. McShane, H. J. Crawford, R. Lednicky, T. Tarnowsky, P. Djawotho, M. Shao, J. Cheng, Peter Graham Jones, B. Biritz, X. L. Wang, C. Zhong, R. E. Tribble, Jifa Tian, M. Sharma, Xuan Zhang, L. K. Mangotra, D. Tlusty, T. P. Burton, T. J. M. Symons, Mirko Planinic, R. Fatemi, Michael Joseph Betancourt, J. L. Drachenberg, L. C. De Silva, Jing Zhou, A. Lebedev, I. Sakrejda, P. Yepes, A. Davila Leyva, Y. Panebratsev, N. G. Minaev, R. Manweiler, Hongfang Liu, K. Krueger, Jie Liu, L. Didenko, D. Grosnick, Olga Evdokimov, V. Kouchpil, M. van Leeuwen, X. Dong, S. Baumgart, Gerald W Hoffmann, I. Koralt, A. Chikanian, P. R. Pujahari, C. B. Powell, J. A. Vanfossen, Y. N. Gorbunov, S. K. Pal, Justin Stevens, L. V. Nogach, M. J. Ng, Marcelo Gameiro Munhoz, D. J. Prindle, A. H. Tang, Matthew Walker, M. J. M. Codrington, J. Alford, A. M. Poskanzer, C. A. Whitten, Feng Jin, V. N. Tram, L. H. Tarini, William Axel Leight, Yi Zhang, W. Guryn, Ross Milner, Hanna Paulina Zbroszczyk, G. Van Nieuwenhuizen, R. Corliss, Rolf K. Reed, Jay Roberts, S. H. Zhang, V. Fine, I. G. Alekseev, Donika Plyku, D. R. Beavis, S. R. Klein, N. L. Subba, A. Kechechyan, Andre Mischke, Jongmin Lee, D. L. Olson, I. Bunzarov, R. L. Ray, L. Koroleva, Yingcai Zhu, Y. J. Sun, Y. Yang, O. G. Grebenyuk, E. Sangaline, D. Arkhipkin, A. Hamed, S. J. Lindenbaum, B. E. Bonner, M. A. Lisa, V. Ghazikhanian, M. Cherney, B. Haag, D. Staszak, S. LaPointe, N. Li, J. Fedorisin, W. Christie, O. D. Tsai, M. Calderon De La Barca Sanchez, T. Ljubicic, A. Gordon, A. A. Derevschikov, M. Krus, R. Cendejas, Lokesh Kumar, Zhiming Li, S. Kabana, Xiangming Sun, W. M. Zhang, Andrey Vasiliev, A. G. Knospe, M. Elnimr, M. C. Cervantes, O. Catu, H. Caines, Sudhir Raniwala, Y. P. Viyogi, Y. Fisyak, Zebo Tang, A. Kocoloski, B. Morozov, C. Roy, K. Yip, J. S. Wang, K. Kajimoto, S. Dash, Janet Elizabeth Seger, R. R. Debbe, I. Selyuzhenkov, Vitaly Okorokov, O. I. Mall, A. M. Hoffman, J. C. Webb, Sevil Salur, Y. Wang, J. G. Cramer, M. A.C. Lamont, L-X. Han, B. Huang, Bernd Surrow, Mateusz Andrzej Ploskon, R. Witt, Z. Chajecki, B. Erazmus, Yinina Ma, L. Li, S. Mioduszewski, P. Fachini, Pawan Kumar Netrakanti, J. Seele, J. L. Romero, Donald M. McDonald, E. W. Oldag, A. Bridgeman, P. Chaloupka, B. V.K.S. Potukuchi, B. K. Srivastava, C. A. Gagliardi, M. Pachr, Xingguo Li, W. J. Llope, M. Heinz, Lee Stuart Barnby, M. Zawisza, H. M. Spinka, J. C. Dunlop, E. Finch, Jaroslav Bielcik, Neeraj Gupta, D. Cebra, Zubayer Ahammed, B. D. Anderson, M. J. LeVine, M. R. Dutta Mazumdar, S. Trentalange, O. V. Rogachevskiy, C. Perkins, Mitali Mondal, W. A. Love, J. H. Thomas, L. Xue, M. Estienne, Madan M. Aggarwal, P. Chung, Fuqiang Wang, Yong Xu, Wei Xie, J. Joseph, G. M.S. Vasconcelos, W. L. Zhan, Q. H. Xu, N. K. Pruthi, D. Kettler, Frank Simon, Y. Pandit, R. N. Singaraju, L. Huo, A. P. Meschanin, G. S. Averichev, N. Schmitz, E. Shahaliev, T. Peitzmann, R. S. Longacre, Debasish Das, Raghunath Sahoo, G. Igo, L. Ruan, J. Bouchet, K. Kauder, Andrew Rose, L. C. Bland, Bedangadas Mohanty, C. L. Jones, M. C. Suarez, D. N. Svirida, R. G. Fersch, J. Ulery, H. G. Ritter, M. Wada, R. Bellwied, I. K. Yoo, D. R. Gangadharan, E. G. Judd, Michal Sumbera, S. W. Wissink, Nikola Poljak, S. Bueltmann, Elena Bruna, Thorsten Sven Kollegger, Xiaofeng Luo, Guo-Liang Ma, S. Heppelmann, Haiyan Wang, X. Z. Cai, A. S. Hirsch, P. Kravtsov, G. Van Buren, S. S. Shi, J. B. Zhang, J. M. Nelson, D. D. Koetke, J. E. Draper, Yan Li, W. Peryt, J. Zhao, David Jonathan Hofman, H. Masui, Peter Martin Jacobs, F. Videbæk, G. Webb, J. Takahashi, S. B. Nurushev, Sukalyan Chattopadhyay, M. S. Ganti, H. Z. Huang, S. Vokal, Chitrasen Jena, Y. P. Lu, V. Perevoztchikov, J. Kiryluk, J. H. Chen, and D. A. Morozov
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Hadron, Elementary particle, Plasma, Radiation, 01 natural sciences, Charged particle, Nuclear physics, Azimuth, Deuterium, 0103 physical sciences, Atomic physics, Nuclear Experiment, 010306 general physics, STAR detector
Abstract: Yields, correlation shapes, and mean transverse momenta p(T) of charged particles associated with intermediate-to high-p(T) trigger particles (2.5 < p(T) < 10 GeV/c) in d + Au and Au + Au collisions at root s(NN) = 200 GeV are presented. For associated particles at higher p(T) greater than or similar to 2.5 GeV/c, narrow correlation peaks are seen in d + Au and Au + Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT < 2 GeV/c, a large enhancement of the near- (Delta phi similar to 0) and away-side (Delta phi similar to pi) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au + Au collisions compared to d + Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at Delta phi similar to pi in central Au + Au collisions.
Published: 2010

16. Balance functions fromAu+Au,d+Au, andp+pcollisions atsNN=200GeV

Author: M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, I. Alekseev, J. Alford, B. D. Anderson, D. Arkhipkin, G. S. Averichev, J. Balewski, 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, 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, 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, O. Evdokimov, 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, S. M. Guertin, A. Gupta, N. Gupta, W. Guryn, B. Haag, 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, B. Huang, H. Z. Huang, T. J. Humanic, L. Huo, G. Igo, P. Jacobs, W. W. Jacobs, 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, I. Koralt, L. Koroleva, 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. M. 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, X. Luo, 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, B. Morozov, 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, V. Okorokov, E. W. Oldag, 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, 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, D. N. Svirida, 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, M. van Leeuwen, 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. L. Wang, Y. Wang, G. Webb, J. C. Webb, G. D. Westfall, C. Whitten, H. Wieman, S. W. Wissink, R. Witt, Y. F. 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, J. B. Zhang, 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: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Kinetic energy, 01 natural sciences, Hadronization, Pion, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Production (computer science), Nuclear Experiment, 010306 general physics, Centrality, Nucleon
Abstract: Balance functions have been measured for charged-particle pairs, identified charged-pion pairs, and identified charged-kaon pairs in $\mathrm{Au}+\mathrm{Au}$, $d+\mathrm{Au}$, and $p+p$ collisions at $\sqrt{{s}_{\mathit{NN}}}=200$ GeV at the Relativistic Heavy Ion Collider using the STAR detector. These balance functions are presented in terms of relative pseudorapidity, $\ensuremath{\Delta}\ensuremath{\eta}$, relative rapidity, $\ensuremath{\Delta}y$, relative azimuthal angle, $\ensuremath{\Delta}\ensuremath{\phi}$, and invariant relative momentum, ${q}_{\mathrm{inv}}$. For charged-particle pairs, the width of the balance function in terms of $\ensuremath{\Delta}\ensuremath{\eta}$ scales smoothly with the number of participating nucleons, while hijing and urqmd model calculations show no dependence on centrality or system size. For charged-particle and charged-pion pairs, the balance functions widths in terms of $\ensuremath{\Delta}\ensuremath{\eta}$ and $\ensuremath{\Delta}y$ are narrower in central $\mathrm{Au}+\mathrm{Au}$ collisions than in peripheral collisions. The width for central collisions is consistent with thermal blast-wave models where the balancing charges are highly correlated in coordinate space at breakup. This strong correlation might be explained by either delayed hadronization or limited diffusion during the reaction. Furthermore, the narrowing trend is consistent with the lower kinetic temperatures inherent to more central collisions. In contrast, the width of the balance function for charged-kaon pairs in terms of $\ensuremath{\Delta}y$ shows little centrality dependence, which may signal a different production mechanism for kaons. The widths of the balance functions for charged pions and kaons in terms of ${q}_{\mathrm{inv}}$ narrow in central collisions compared to peripheral collisions, which may be driven by the change in the kinetic temperature.
Published: 2010

17. Υcross section inp+pcollisions 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, 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, 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, M. R. Cosentino, 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, O. Evdokimov, 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, 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, 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, M. van Leeuwen, 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. 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: Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Antiparticle, Meson, 010308 nuclear & particles physics, Hadron, Drell–Yan process, Perturbative QCD, 01 natural sciences, Nuclear physics, Color model, Antimatter, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We report on a measurement of the gamma(1S + 2S + 3S) -> e(+)e(-) cross section at midrapidity in p + p collisions at root s = 200 GeV. We find the cross section to be 114 +/- 38(stat + fit)(-24)(+23)(syst) pb. Perturbative QCD calculations at next-to-leading order in the color evaporation model are in agreement with our measurement, while calculations in the color singlet model underestimate it by 2 sigma. Our result is consistent with the trend seen in world data as a function of the center-of-mass energy of the collision and extends the availability of gamma data to RHIC energies. The dielectron continuum in the invariant-mass range near the gamma is also studied to obtain a combined yield of e(+)e(-) pairs from the sum of the Drell-Yan process and b-(b) over bar production.
Published: 2010

18. Inclusiveπ0,η, and direct photon production at high transverse momentum inp+pandd+Aucollisions atsNN=200GeV

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: Physics, Nuclear and High Energy Physics, Particle physics, Photon, Meson, 010308 nuclear & particles physics, Hadron, Perturbative QCD, Elementary particle, 7. Clean energy, 01 natural sciences, Nuclear physics, Particle decay, Pion, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We report a measurement of high-p(T) inclusive pi(0), eta, and direct photon production in p + p and d + Au collisions at root s(NN) = 200 GeV at midrapidity (0 gamma gamma were detected in the barrel electromagnetic calorimeter of the STAR experiment at the Relativistic Heavy Ion Collider. The eta -> gamma gamma decay was also observed and constituted the first eta measurement by STAR. The first direct photon cross-section measurement by STAR is also presented; the signal was extracted statistically by subtracting the pi(0), eta, and omega(782) decay background from the inclusive photon distribution observed in the calorimeter. The analysis is described in detail, and the results are found to be in good agreement with earlier measurements and with next-to-leading-order perturbative QCD calculations.
Published: 2010

19. Observation of charge-dependent azimuthal correlations and possible local strong parity violation in heavy-ion collisions

Author: L. H. Tarini, M. DePhillips, G. Eppley, I. Bnzarov, G. Van Buren, Michal Sumbera, Xu Cai, Hank Crawford, J. Pluta, S. S. Shi, T. S. McShane, J. Engelage, T. W. Ludlam, L. K. Mangotra, S. W. Wissink, A. Ridiger, J. M. Nelson, S. Baumgart, R. S. Longacre, Nikola Poljak, A. Geromitsos, Matthew Walker, J. H. Thomas, K. Kajimoto, Saskia Mioduszewski, Premomoy Ghosh, M. Zawisza, H. M. Spinka, D. Kettler, R. Manweiler, Hongfang Liu, Jongmin Lee, Yan Li, Jing-Han Chen, W. Peryt, R. E. Tribble, R. L. Ray, J. M. Landgraf, G. S. Averichev, S. Kabana, Y. P. Viyogi, T. J. Humanic, L. Kotchenda, Gerald W Hoffmann, Debasish Das, Raghunath Sahoo, B. Haag, C. A. Whitten, Feng Jin, M. Strikhanov, S. Heppelmann, A. Chikanian, J. L. Drachenberg, D. Staszak, Qian Yue, R. Varma, A. M. Poskanzer, V. N. Tram, J. Ulery, A. Lebedev, O. Catu, I. Sakrejda, M. Heinz, Lee Stuart Barnby, Yu A. Matulenko, B. S. Page, J. Konzer, G. Igo, L. Ruan, Anju Bhasin, H. Caines, Ki-Seok Choi, R. Corliss, R. Fatemi, Michael Joseph Betancourt, D. P. Kikola, B. Stringfellow, E. Hjort, Y. Fisyak, S. Bueltmann, Zebo Tang, J. Bouchet, S. Zhang, J. Sandweiss, Jana Bielcikova, B. E. Bonner, B. Erazmus, R. P. Redwine, K. Kauder, D. Arkhipkin, A. Hamed, Z. Chajecki, A. Feng, H. G. Ritter, Y. F. Wu, Christine Nattrass, T. Ljubicic, Subhasis Chattopadhyay, Andrew Rose, I. K. Yoo, J. X. Zuo, O. Barannikova, R. Bellwied, Y. Zhao, D. D. Koetke, L. G. Efimov, Y. Yang, K. Kang, S. J. Lindenbaum, X. R. Wang, K. Krueger, J. G. Cramer, V. Ghazikhanian, Jay Roberts, S. LaPointe, A. Kechechyan, Andre Mischke, M. Krus, N. Li, A. Kocoloski, Jaroslav Bielcik, J. A. Vanfossen, Neeraj Gupta, Haiyan Wang, D. Cebra, Russell Richard Betts, A. Iordanova, R. Cendejas, S. Dash, A. Bridgeman, A. Gordon, L. C. Bland, Z. J. Sun, Q. H. Xu, D. R. Gangadharan, E. G. Judd, S. Trentalange, J. L. Romero, S. M. Guertin, M. Estienne, Alexandre Alarcon Do Passo Suaide, C. Perkins, D. Thein, G. Wang, T. Peitzmann, M. Sharma, B. D. Anderson, R. N. Singaraju, L. Huo, A. P. Meschanin, P. Seyboth, E. J. Garcia-Solis, O. D. Tsai, Elena Bruna, Sudhir Raniwala, J. W. Harris, Z. Xu, G. Lin, Sergei A. Voloshin, N. G. Minaev, D. P. Mahapatra, R. S. Hollis, E. Finch, H. Bichsel, Anik Gupta, R. Derradi de Souza, B. I. Abelev, N. K. Pruthi, G. Odyniec, Y. Zoulkarneeva, M. Kopytine, P. Sorensen, X. H. Shi, M. R. Dutta Mazumdar, K. Yip, L. Liu, C. L. Jones, Bedangadas Mohanty, J. S. Wang, Jianping Cheng, M. Cherney, M. Elnimr, Basanta Kumar Nandi, J. E. Draper, M. J. Skoby, Frank Jm Geurts, J. C. Dunlop, M. C. Suarez, M. J. M. Codrington, H. Z. Huang, S. Vokal, Thomas Michael Cormier, E. Elhalhuli, Lokesh Kumar, Peter Graham Jones, P. Yepes, Yifu Sun, Zubayer Ahammed, I. Koralt, B. Biritz, Jifa Tian, V. A. Okorokov, M. C. Cervantes, A. H. Tang, O. V. Rogachevskiy, P. R. Pujahari, M. J. LeVine, T. D. S. Stanislaus, F. Videbæk, G. Webb, C. Roy, H. H. Wieman, Q. Wang, David Jonathan Hofman, T. P. Burton, M. J. Russcher, P. Chung, D. G. Underwood, E. P. Sichtermann, J. Kiryluk, Yannis K. Semertzidis, L. V. Nogach, M. J. Ng, M. Wada, J. Joseph, D. A. Morozov, Mikhail Tokarev, H. Masui, G. M.S. Vasconcelos, M. S. Daugherity, Jorn Henning Putschke, M. S. Ganti, J. Seele, Y. Pandit, A. V. Brandin, L. Didenko, J. Balewski, Rashmi Raniwala, R. Milner, H. Okada, W. Christie, V. I. Kravtsov, P. Chaloupka, N. Schmitz, P. Fachini, W. Xie, E. Shahaliev, Chitrasen Jena, Claude Andre Pruneau, H. F. Chen, Y. P. Lu, V. Perevoztchikov, F. Liu, X. Zhu, Ermes Braidot, G. Van Nieuwenhuizen, Peter Martin Jacobs, Xiang Sun, W. A. Love, Adam Ryszard Kisiel, Jing Zhou, Guo-Liang Ma, William Axel Leight, T. Ullrich, J. Takahashi, A. S. Hirsch, J. C. Webb, Mateusz Andrzej Ploskon, R. Witt, Marcelo Gameiro Munhoz, D. J. Prindle, P. Kravtsov, R. Zoulkarneev, P. Kurnadi, S. B. Nurushev, S. R. Klein, R. D. Majka, L. Eun, N. L. Subba, V. Yu Khodyrev, Donika Plyku, D. L. Olson, Subrata Pal, Donald M. McDonald, M. A. Lisa, Zhenyu Zhang, J. Sowinski, J. Y. Chen, S. Margetis, R. F. Clarke, J. Schambach, X. L. Wang, C. Zhong, B. K. Srivastava, M. R. Cosentino, Sevil Salur, Y. Wang, M. Shao, X. Dong, Madan M. Aggarwal, Fuqiang Wang, A. A. Derevschikov, W. M. Zhang, Andrey Vasiliev, T. J. Hallman, Y. Panebratsev, Janet Elizabeth Seger, T. J. M. Symons, A. M. Hoffman, F. Benedosso, Yong Xu, D. Grosnick, V. Kouchpil, K. S.F.F. Guimaraes, V. Dzhordzhadze, L. C. De Silva, Yi Zhang, W. L. Zhan, Rolf K. Reed, Frank Simon, T. G. Dedovich, T. Sakuma, S. C. Phatak, I. Selyuzhenkov, A. Szanto de Toledo, J. Kapitan, V. Fine, A. R. Timmins, S. M. Dogra, Bernd Surrow, T. Pawlak, A. K. Bhati, D. Keane, Nikolai Smirnov, Xiaoping Zhang, A. V. Alakhverdyants, C-H. Lee, T. K. Nayak, Pawan Kumar Netrakanti, B. Grube, W. Guryn, O. G. Grebenyuk, J. Fedorisin, C. A. Gagliardi, A. G. Knospe, M. Pachr, W. J. Llope, Jie Liu, Hanna Paulina Zbroszczyk, D. R. Beavis, M. Calderón De La Barca Sánchez, O. I. Mall, M. A.C. Lamont, B. V.K.S. Potukuchi, Yu-Gang Ma, N. Xu, P. Filip, C-Q. Li, S. Sakai, P. Pile, G. D. Westfall, R. P. Scharenberg, Christina Markert, Petr Jákl, H. S. Matis, W. W. Jacobs, J. Lauret, R. Lednicky, T. Tarnowsky, P. Djawotho, Sergey Timoshenko, Wolfgang Korsch, A. Ogawa, D. Tlusty, Mirko Planinic, Y. N. Gorbunov, 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: Quark, Nuclear and High Energy Physics, Particle physics, dependence rapidity dependence transverse momentum, Star, Nuclear Theory, Vacuum, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], dependence 62, FOS: Physical sciences, Relativistic Nuclear Collisions, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], scattering gold copper quantum chromodynamics, 01 natural sciences, Nuclear Theory (nucl-th), Nuclear physics, angular correlation topological Monte Carlo STAR Brookhaven RHIC Coll impact parameter, 0103 physical sciences, 11.30.Er, 11.30.Qc, 25.75.Ld, 25.75.Nq, Nuclear Experiment (nucl-ex), Nuclear Experiment, 010306 general physics, Physics, Quantum chromodynamics, Matter, 010308 nuclear & particles physics, Elliptic flow, Parity (physics), Observable, Fermion, Collaboration, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, parity, Elliptic Flow, violation heavy ion, Time Projection Chamber, Perspective, Quark–gluon plasma, 200 GeV-cms/nucleon, Quark-Gluon Plasma, (3particle) charged particle, Hot Qcd, vacuum state correlation function, 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 orbital momentum of the system created in non-central collisions. To study this effect, we investigate a three particle mixed harmonics azimuthal correlator which is a \P-even observable, but directly sensitive to the charge separation effect. We report measurements of this observable using the STAR detector in Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$=200 and 62~GeV. The results are presented as a function of collision centrality, particle separation in rapidity, and particle transverse momentum. A signal consistent with several of the theoretical expectations is detected in all four data sets. We compare our results to the predictions of existing event generators, and discuss in detail possible contributions from other effects that are not related to parity violation., Comment: 17 pages, 14 figures, as accepted for publication in Physical Review C.
Published: 2010

20. Spectra of identified high-pTπ±andp(p¯)inCu+Cucollisions atsNN=200GeV

Author: B. I. Abelev, M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, B. D. Anderson, D. Arkhipkin, G. S. Averichev, J. Balewski, 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, O. Evdokimov, 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: Physics, Nuclear and High Energy Physics, Particle physics, Proton, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, 01 natural sciences, Baryon, Pion, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, QCD matter, STAR detector
Abstract: We report new results on identified (anti)proton and charged pion spectra at large transverse momenta ($3l{p}_{T}l10$ GeV$/c$) from $\mathrm{Cu}+\mathrm{Cu}$ collisions at $\sqrt{{s}_{\mathit{NN}}}=200$ GeV using the STAR detector at the Relativistic Heavy Ion Collider (RHIC). This study explores the system size dependence of two novel features observed at RHIC with heavy ions: the hadron suppression at high-${p}_{T}$ and the anomalous baryon to meson enhancement at intermediate transverse momenta. Both phenomena could be attributed to the creation of a new form of QCD matter. The results presented here bridge the system size gap between the available $\mathit{pp}$ and $\mathrm{Au}+\mathrm{Au}$ data, and allow for a detailed exploration of the onset of the novel features. Comparative analysis of all available 200 GeV data indicates that the system size is a major factor determining both the magnitude of the hadron spectra suppression at large transverse momenta and the relative baryon to meson enhancement.
Published: 2010

21. Charged and strange hadron elliptic flow inCu+Cucollisions atsNN=62.4and 200 GeV

Author: B. I. Abelev, M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, I. Alekseev, B. D. Anderson, D. Arkhipkin, G. S. Averichev, J. Balewski, 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, 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, O. Evdokimov, 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, 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, L. Koroleva, 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, B. Morozov, 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, X. H. 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, D. N. Svirida, 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, M. van Leeuwen, 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. 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: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Elliptic flow, Hadron, Elementary particle, Kinetic energy, 01 natural sciences, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We present the results of an elliptic flow, v(2), analysis of Cu + Cu collisions recorded with the solenoidal tracker detector (STAR) at the BNL Relativistic Heavy Ion Collider at root s(NN) = 62.4 and 200 GeV. Elliptic flow as a function of transverse momentum, v(2)(p(T)), is reported for different collision centralities for charged hadrons h(+/-) and strangeness-ontaining hadrons K(S)(0), Lambda, Xi, and phi in the midrapidity region vertical bar eta vertical bar < 1.0. Significant reduction in systematic uncertainty of the measurement due to nonflow effects has been achieved by correlating particles at midrapidity, vertical bar eta vertical bar < 1.0, with those at forward rapidity, 2.5 < vertical bar eta vertical bar < 4.0. We also present azimuthal correlations in p + p collisions at root s = 200 GeV to help in estimating nonflow effects. To study the system-size dependence of elliptic flow, we present a detailed comparison with previously published results from Au + Au collisions at root s(NN) = 200 GeV. We observe that v(2)(p(T)) of strange hadrons has similar scaling properties as were first observed in Au + Au collisions, that is, (i) at low transverse momenta, p(T) < 2 GeV/c, v(2) scales with transverse kinetic energy, m(T) - m, and (ii) at intermediate p(T), 2 < p(T) < 4 GeV/c, it scales with the number of constituent quarks, n(q.) We have found that ideal hydrodynamic calculations fail to reproduce the centrality dependence of v(2)(p(T)) for K(S)(0) and Lambda. Eccentricity scaled v(2) values, v(2)/epsilon, are larger in more central collisions, suggesting stronger collective flow develops in more central collisions. The comparison with Au + Au collisions, which go further in density, shows that v(2)/epsilon depends on the system size, that is, the number of participants N(part). This indicates that the ideal hydrodynamic limit is not reached in Cu + Cu collisions, presumably because the assumption of thermalization is not attained.
Published: 2010

22. Observation ofπ+π−π+π−photoproduction in ultraperipheral heavy-ion collisions atsNN=200GeV at the STAR detector

Author: B. I. Abelev, M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, B. D. Anderson, D. Arkhipkin, G. S. Averichev, J. Balewski, 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, S. U. 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, O. Evdokimov, 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: Nuclear reaction, Physics, Nuclear and High Energy Physics, Meson, 010308 nuclear & particles physics, Branching fraction, Hadron, Elementary particle, 01 natural sciences, Pion, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, 0103 physical sciences, Production (computer science), Atomic physics, 010306 general physics, Dimensionless quantity
Abstract: We present a measurement of pi{sup +}pi{sup -}pi{sup +}pi{sup -} photonuclear production in ultraperipheral Au-Au collisions at sq root(s{sub N{sub N}})=200 GeV from the STAR experiment. The pi{sup +}pi{sup -}pi{sup +}pi{sup -} final states are observed at low transverse momentum and are accompanied by mutual nuclear excitation of the beam particles. The strong enhancement of the production cross section at low transverse momentum is consistent with coherent photoproduction. The pi{sup +}pi{sup -}pi{sup +}pi{sup -} invariant mass spectrum of the coherent events exhibits a broad peak around 1540+-40 MeV/c{sup 2} with a width of 570+-60 MeV/c{sup 2}, in agreement with the photoproduction data for the rho{sup 0}(1700). We do not observe a corresponding peak in the pi{sup +}pi{sup -} final state and measure an upper limit for the ratio of the branching fractions of the rho{sup 0}(1700) to pi{sup +}pi{sup -} and pi{sup +}pi{sup -}pi{sup +}pi{sup -} of 2.5% at 90% confidence level. The ratio of rho{sup 0}(1700) and rho{sup 0}(770) coherent production cross sections is measured to be 13.4+-0.8{sub stat.}+-4.4{sub syst.}%.
Published: 2010

23. Identified particle production, azimuthal anisotropy, and interferometry measurements inAu+Aucollisions atsNN=9.2GeV

Author: G. Lin, P. Kurnadi, P. Djawotho, M. Heinz, Lee Stuart Barnby, J. E. Draper, M. J. Skoby, Frank Jm Geurts, E. Elhalhuli, Jifa Tian, J. Engelage, F. Benedosso, A. G. Knospe, Jaroslav Bielcik, T. G. Dedovich, A. Geromitsos, William Jacobs, Premomoy Ghosh, J. M. Landgraf, C-Q. Li, M. R. Dutta Mazumdar, T. Sakuma, S. C. Phatak, V. Fine, Russell Richard Betts, M. Strikhanov, Y. Xu, O. V. Rogachevskiy, R. P. Scharenberg, Christina Markert, M. K. Mitrovski, Shoko Sakai, H. S. Matis, H. Masui, Zhibing Li, Jake Y. Chen, E. Hjort, Y. F. Wu, D. G. Underwood, A. Ridiger, Christine Nattrass, B. Haag, J. Konzer, L. Didenko, J. C. Dunlop, K. Yip, K. Kang, K. Kajimoto, Saskia Mioduszewski, Mikhail Tokarev, W. A. Love, Zebo Tang, H. Caines, Ki-Seok Choi, M. Zawisza, H. M. Spinka, L. Xue, J. Lauret, Zubayer Ahammed, J. S. Wang, R. R. Debbe, Y. Wang, Thomas Humanic, E. P. Sichtermann, Y. Zoulkarneeva, C. Zhong, T. S. McShane, R. Lednicky, M. J. LeVine, J. M. Joseph, J. H. Thomas, G. Odyniec, J. Sandweiss, Z. Chajecki, D. D. Koetke, D. Kettler, J. Balewski, Madan M. Aggarwal, N. Xu, S. Timoshenko, Fuqiang Wang, P. Filip, L. Kotchenda, Q. Wang, M. J. Russcher, G. S. Averichev, J. Ulery, Rashmi Raniwala, I. Koralt, T. R. Schuster, C. Perkins, Ilya Selyuzhenkov, J. M. Rehberg, R. S. Longacre, H. G. Ritter, H. Z. Huang, L. H. Tarini, Sergei A. Voloshin, J. C. Webb, T. Peitzmann, J. L. Drachenberg, S. Zhang, L. V. Nogach, M. J. Ng, V. I. Kravtsov, P. Pile, G. D. Westfall, Claude Andre Pruneau, Sadhana Dash, O. Barannikova, R. Bellwied, I. Bnzarov, T. J. Hallman, E. G. Judd, G. J. van Nieuwenhuizen, T. J. M. Symons, Anthony Robert Timmins, C. L. Jones, S. Baumgart, Jing Zhou, Matthew Walker, Mirko Planinic, Jay Roberts, D. Thein, Adam Ryszard Kisiel, I. Sakrejda, Marcelo Gameiro Munhoz, D. J. Prindle, D. Tlusty, W. L. Zhan, S. Vokal, Y. Fisyak, A. Gupta, Petr Jákl, T. Ullrich, L. C. De Silva, Frank Simon, D. R. Gangadharan, Donika Plyku, P. Chung, S. M. Guertin, William Axel Leight, X. Zhu, S. R. Klein, T. Tarnowsky, N. L. Subba, M. A. Lisa, Debasish Das, Raghunath Sahoo, M. A.C. Lamont, Mateusz Andrzej Ploskon, R. Witt, R. Zoulkarneev, Vitaly Okorokov, R. Fatemi, Michael Joseph Betancourt, D. P. Mahapatra, M. Kopytine, D. L. Olson, L. C. Bland, Bernd Surrow, J. Kiryluk, J. H. Chen, Yifu Sun, W. Zhou, Y. P. Viyogi, Y. Yang, V. Yu Khodyrev, S. LaPointe, N. Li, Wei Xie, R. S. Hollis, Subrata Pal, Donald M. McDonald, L. Eun, A. A. Derevschikov, G. Igo, B. K. Srivastava, D. A. Morozov, G. M.S. Vasconcelos, X. L. Wang, K. Krueger, M. C. Suarez, C. A. Whitten, Feng Jin, Pawan Kumar Netrakanti, J. A. Vanfossen, J. Bouchet, A. Szanto de Toledo, B. Erazmus, J. Kapitan, L. Ruan, G. Wang, Qian Yue, A. V. Brandin, H. Okada, C. A. Gagliardi, K. Kauder, W. Xu, S. Margetis, R. Corliss, M. Pachr, T. D. S. Stanislaus, X. Dong, Y. Pandit, George Stephans, T. Pawlak, Y. Zhao, R. Varma, A. Rose, James Prewitt Hays-Wehle, Yu A. Matulenko, B. S. Page, Neeraj Gupta, D. Cebra, M. Estienne, A. V. Alakhverdyants, X. Lin, Z. J. Sun, H. H. Wieman, S. J. Lindenbaum, N. Schmitz, B. Grube, Q. H. Xu, Jongmin Lee, D. P. Kikola, L. K. Mangotra, R. L. Ray, P. Seyboth, B. Stringfellow, D. Staszak, R. N. Singaraju, E. Shahaliev, L. Huo, A. P. Meschanin, R. Manweiler, W. Guryn, R. Derradi de Souza, B. I. Abelev, T. Ljubicic, O. G. Grebenyuk, Jianping Cheng, Sudhir Raniwala, B. D. Anderson, J. Fedorisin, V. Ghazikhanian, J. G. Cramer, M. J. M. Codrington, M. Cherney, A. Kechechyan, Andre Mischke, Lokesh Kumar, M. Krus, R. Cendejas, Jana Bielcikova, Prabhat Ranjan Pujahari, J. L. Romero, M. Sharma, N. K. Pruthi, N. G. Minaev, E. Finch, G. Eppley, Xu Cai, J. Pluta, Jie Liu, Y. H. Zhu, Gerald W Hoffmann, J. Seele, Hanna Paulina Zbroszczyk, D. R. Beavis, J. W. Harris, R. Reed, P. Yepes, A. H. Tang, W. M. Zhang, Andrey Vasiliev, O. I. Mall, L-X. Han, M. Calderon De La Barca Sanchez, O. Catu, A. Kocoloski, P. G. Jones, Yu-Gang Ma, A. Hirsch, W. J. Llope, Janet Elizabeth Seger, A. M. Hoffman, Y. Li, T. Kollegger, F. Liu, Edmundo Javier Garcia-Solis, Ascelin Gordon, R. D. Majka, J. Sowinski, R. F. Clarke, J. Schambach, L. G. Efimov, Anju Bhasin, R. P. Redwine, Haiyan Wang, A. Lebedev, X. M. Sun, P. Sorensen, M. Shao, G. Van Buren, S. S. Shi, T. W. Ludlam, J. M. Nelson, W. Peryt, P. Fachini, Peter Martin Jacobs, D. J. Hofman, J. Takahashi, S. B. Nurushev, Bedangadas Mohanty, R. G. Fersch, M. Wada, Robert E. Tribble, I. K. Yoo, M. DePhillips, Michal Sumbera, A. A. P. Suaide, Hank Crawford, S. W. Wissink, Y. Zhang, Nikola Poljak, Y. N. Gorbunov, B. V. K. S. Potukuchi, Wolfgang Korsch, A. Bridgeman, J. Putschke, A. Ogawa, H. F. Chen, Thomas A. Trainor, Basanta Kumar Nandi, B. Biritz, A. M. Poskanzer, T. P. Burton, C. Roy, P. Chaloupka, B. E. Bonner, O. D. Tsai, S. Kabana, S. Trentalange, M. Elnimr, M. C. Cervantes, H. Liu, V. N. Tram, R. Milner, D. Arkhipkin, A. Hamed, Sevil Salur, E. Braidot, A. Iordanova, A. K. Bhati, D. Keane, R. Stock, Xiaoping Zhang, C-H. Lee, T. K. Nayak, Y. Panebratsev, D. Grosnick, V. Kouchpil, Z. Z. Xu, Samuel Heppelmann, Nikita Smirnov, Guo-Liang Ma, A. Chikanian, Z. P. Zhang, P. Kravtsov, F. Videbæk, G. Webb, M. S. Ganti, H. Bichsel, W. Christie, Chitrasen Jena, Y. P. Lu, V. Perevoztchikov, Sunil Dogra, S. Bueltmann, Subhasis Chattopadhyay, and Elena Bruna
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Time projection chamber, Meson, 010308 nuclear & particles physics, Nuclear Theory, Elliptic flow, Hadron, Elementary particle, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, STAR detector
Abstract: We present the first measurements of identified hadron production, azimuthal anisotropy, and pion interferometry from Au + Au collisions below the nominal injection energy at the BNL Relativistic Heavy-Ion Collider (RHIC) facility. The data were collected using the large acceptance solenoidal tracker at RHIC (STAR) detector at root s(NN) = 9.2 GeV from a test run of the collider in the year 2008. Midrapidity results on multiplicity density dN/dy in rapidity y, average transverse momentum , particle ratios, elliptic flow, and Hanbury-Brown-Twiss (HBT) radii are consistent with the corresponding results at similar root s(NN) from fixed-target experiments. Directed flow measurements are presented for both midrapidity and forward-rapidity regions. Furthermore the collision centrality dependence of identified particle dN/dy, , and particle ratios are discussed. These results also demonstrate that the capabilities of the STAR detector, although optimized for root s(NN) = 200 GeV, are suitable for the proposed QCD critical-point search and exploration of the QCD phase diagram at RHIC.
Published: 2010

24. 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

25. 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

26. 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

27. 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

28. 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

29. 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

30. 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

31. 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

32. Precise Measurement of the Neutron Magnetic Form FactorGMnin the Few-GeV2Region

Author: R. J. Feuerbach, J. P. Cummings, L. C. Smith, E. Munevar, R. De Masi, D. Keller, M. Kossov, B. S. Ishkhanov, I. Popa, K. S. Egiyan, G. Ricco, K. Mikhailov, L. Cheng, M. Khandaker, M. Garçon, J. Shaw, Michael Wood, P. Nadel-Turonski, Nikolay Shvedunov, M. R. Niroula, K. Hafidi, R. Nasseripour, S. McAleer, Friedrich Klein, B. P. Quinn, Brian Raue, V. S. Serov, L. Casey, F. X. Girod, Susan Taylor, Marco A. Huertas, M. Lowry, V. Sapunenko, D. P. Watts, L. C. Dennis, B. E. Bonner, Hartmuth Arenhövel, Dinko Pocanic, H. Egiyan, R. G. Fersch, H. Avakian, D. Doughty, B. B. Niczyporuk, G. S. Adams, S. Park, D. Sharov, N. Kalantarians, P. L. Cole, Sylvain Bouchigny, Sabine Jeschonnek, R. C. Minehart, Kei Moriya, D. Heddle, P. Rossi, J. Lachniet, H. G. Juengst, C. A. Meyer, N. Pivnyuk, K. Joo, W. J. Briscoe, B. L. Berman, A. Tkabladze, G. V. Fedotov, E. Pasyuk, D. Rowntree, A. Coleman, L. M. Qin, M. Y. Gabrielyan, S. E. Kuhn, S. A. Dytman, V. Crede, Y. Ilieva, J. R. Calarco, T. Mineeva, J. W. Price, M. J. Amaryan, C. Paterson, S. Strauch, M. MacCormick, A.V. Stavinsky, M. Klusman, I. Hleiqawi, V. P. Kubarovsky, K. P. Adhikari, S. L. Careccia, A. Empl, L. El Fassi, O. Pogorelko, B. Moreno, D. P. Weygand, J. Salamanca, R. Suleiman, M. E. McCracken, Elton Smith, K. L. Giovanetti, B. Asavapibhop, G. V. O'Rielly, Tsutomu Mibe, Larry Weinstein, Z. W. Zhao, J. W C McNabb, D. J. Tedeschi, D. Protopopescu, D. G. Jenkins, Barry Ritchie, M. Anghinolfi, James Mueller, S. Malace, S. A. Morrow, P. Rubin, I. Bedlinskiy, G. S. Mutchler, Konstantin Stopani, S. Pozdniakov, V. Gyurjyan, M. M. Ito, C. Djalali, Y. G. Sharabian, G. Rosner, T. Kageya, K. Livingston, D. S. Dale, X. Wei, R. Dickson, V. Kuznetsov, C. E. Hyde-Wright, H. Denizli, N. Guler, N. A. Baltzell, P. Mattione, K. A. Griffioen, M. S. Saini, A. V. Skabelin, P. Dragovitsch, J. Zhang, S. Barrow, E. De Sanctis, S. Niccolai, J. T. Goetz, E. Polli, H. Bagdasaryan, R. A. Miskimen, J. D. Kellie, B. McKinnon, Sergey Kuleshov, M. Bektasoglu, J. Hardie, M. Nozar, W. Kim, Laird Kramer, G. Niculescu, D. I. Sober, D. Branford, M. Guidal, R. A. Schumacher, H. Hakobyan, M. Mirazita, P. Khetarpal, C. Hanretty, J. M. Laget, M. Holtrop, Victor Mokeev, L. Graham, J. R. Johnstone, N. Gevorgyan, L. Guo, M. Ungaro, M. Osipenko, F. Sabatié, A. Daniel, K. Beard, Kalvir S. Dhuga, S. Bültmann, A. I. Ostrovidov, J. Yun, D. Cords, V. Batourine, T. A. Forest, A. Yegneswaran, A. C S Lima, A. Sandorfi, K. Park, R. Fatemi, S. Stepanyan, A. V. Vlassov, D. G. Ireland, Volker D. Burkert, A. S. Biselli, J. Pierce, Avraham Klein, B. Zhao, J. Langheinrich, R. De Vita, A. Fradi, S. S. Stepanyan, S. A. Philips, William Brooks, N. Markov, P. Konczykowski, B. E. Stokes, J. J. Manak, S. Anefalos Pereira, G. E. Dodge, H. Y. Lu, N. Dashyan, Maryam Moteabbed, P. V. Degtyarenko, K. V. Dharmawardane, I. Niculescu, D. Lawrence, D. Schott, F. W. Hersman, M. Battaglieri, N. Baillie, P. Stoler, K. Hicks, G. Asryan, O. P. Dzyubak, R. A. Niyazov, P. Corvisiero, R. Bradford, B. A. Mecking, K. Lukashin, E. Wolin, Gerard Gilfoyle, M. Guillo, D. Sokhan, W. Gohn, N. Hassall, M. Bellis, E. Golovatch, J. P. Ball, J. Hu, Y. Prok, D. S. Carman, S. Dhamija, M. D. Mestayer, L. Elouadrhiri, I. I. Strakovsky, E. L. Isupov, R. W. Gothe, G. Gavalian, S. Tkachenko, A. Deur, Michael L. Williams, J. Kuhn, N. Benmouna, J. P. Santoro, Andrei Afanasev, M. Ripani, D. G. Crabb, K. Y. Kim, Roy Thompson, Cynthia Marie Hadjidakis, S. Boiarinov, Michael Dugger, B. M. Preedom, Douglas Higinbotham, M. Yurov, Lorenzo Zana, H. S. Jo, C. Bookwalter, C. Salgado, Kwangsoo Kim, G. Riccardi, P. Eugenio, A. Starostin, M. Taiuti, Michael Vineyard, and P. Collins
Subjects: Physics, 010308 nuclear & particles physics, Scattering, Nuclear Theory, General Physics and Astronomy, Scintillator, 7. Clean energy, 01 natural sciences, Nuclear physics, Dipole, Deuterium, 0103 physical sciences, Magnetic form factor, Neutron detection, High Energy Physics::Experiment, Neutron, Nuclear Experiment, 010306 general physics, Electron scattering
Abstract: The neutron elastic magnetic form factor was extracted from quasielastic electron scattering on deuterium over the range Q;{2}=1.0-4.8 GeV2 with the CLAS detector at Jefferson Lab. High precision was achieved with a ratio technique and a simultaneous in situ calibration of the neutron detection efficiency. Neutrons were detected with electromagnetic calorimeters and time-of-flight scintillators at two beam energies. The dipole parametrization gives a good description of the data.
Published: 2009

33. 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

34. Search for the Photoexcitation of Exotic Mesons in theπ+π+π−System

Author: M. Nozar, C. Salgado, D. P. Weygand, L. Guo, G. Adams, Ji Li, P. Eugenio, M. J. Amaryan, M. Anghinolfi, G. Asryan, H. Avakian, H. Bagdasaryan, N. Baillie, J. P. Ball, N. A. Baltzell, S. Barrow, M. Battaglieri, I. Bedlinskiy, M. Bektasoglu, M. Bellis, N. Benmouna, B. L. Berman, A. S. Biselli, L. Blaszczyk, B. E. Bonner, S. Bouchigny, S. Boiarinov, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, S. Bültmann, V. D. Burkert, C. Butuceanu, J. R. Calarco, S. L. Careccia, D. S. Carman, B. Carnahan, L. Casey, A. Cazes, S. Chen, L. Cheng, P. L. Cole, P. Collins, P. Coltharp, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, V. Crede, J. P. Cummings, D. Dale, N. Dashyan, R. De Masi, R. De Vita, E. De Sanctis, P. V. Degtyarenko, H. Denizli, L. Dennis, A. Deur, K. V. Dharmawardane, K. S. Dhuga, R. Dickson, C. Djalali, G. E. Dodge, D. Doughty, M. Dugger, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. El Fassi, L. Elouadrhiri, R. Fatemi, G. Fedotov, R. J. Feuerbach, T. A. Forest, A. Fradi, H. Funsten, M. Garçon, G. Gavalian, N. Gevorgyan, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, R. W. Gothe, K. A. Griffioen, M. Guidal, M. Guillo, N. Guler, V. Gyurjyan, C. Hadjidakis, K. Hafidi, H. Hakobyan, C. Hanretty, J. Hardie, N. Hassall, D. Heddle, F. W. Hersman, K. Hicks, I. Hleiqawi, M. Holtrop, C. E. Hyde-Wright, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, E. L. Isupov, M. M. Ito, D. Jenkins, H. S. Jo, J. R. Johnstone, K. Joo, H. G. Juengst, N. Kalantarians, J. D. Kellie, M. Khandaker, W. Kim, A. Klein, F. J. Klein, M. Kossov, Z. Krahn, L. H. Kramer, V. Kubarovsky, J. Kuhn, S. E. Kuhn, S. V. Kuleshov, V. Kuznetsov, J. Lachniet, J. M. Laget, J. Langheinrich, D. Lawrence, K. Livingston, H. Y. Lu, M. MacCormick, N. Markov, P. Mattione, S. McAleer, B. McKinnon, J. W. C. McNabb, B. A. Mecking, S. Mehrabyan, M. D. Mestayer, C. A. Meyer, T. Mibe, K. Mikhailov, M. Mirazita, R. Miskimen, V. Mokeev, B. Moreno, K. Moriya, S. A. Morrow, M. Moteabbed, J. Mueller, E. Munevar, G. S. Mutchler, P. Nadel-Turonski, R. Nasseripour, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, M. R. Niroula, R. A. Niyazov, G. V. O’Rielly, M. Osipenko, A. I. Ostrovidov, K. Park, E. Pasyuk, C. Paterson, S. Anefalos Pereira, S. A. Philips, J. Pierce, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, I. Popa, S. Pozdniakov, B. M. Preedom, J. W. Price, Y. Prok, D. Protopopescu, L. M. Qin, B. A. Raue, G. Riccardi, G. Ricco, M. Ripani, B. G. Ritchie, F. Ronchetti, G. Rosner, P. Rossi, P. D. Rubin, F. Sabatié, J. Salamanca, J. P. Santoro, V. Sapunenko, R. A. Schumacher, V. S. Serov, Y. G. Sharabian, D. Sharov, N. V. Shvedunov, A. V. Skabelin, E. S. Smith, L. C. Smith, D. I. Sober, D. Sokhan, A. Stavinsky, S. S. Stepanyan, S. Stepanyan, B. E. Stokes, P. Stoler, I. I. Strakovsky, S. Strauch, M. Taiuti, D. J. Tedeschi, U. Thoma, A. Tkabladze, S. Tkachenko, L. Todor, M. Ungaro, M. F. Vineyard, A. V. Vlassov, D. P. Watts, L. B. Weinstein, M. Williams, E. Wolin, M. H. Wood, A. Yegneswaran, L. Zana, J. Zhang, B. Zhao, and Z. W. Zhao
Subjects: Quantum chromodynamics, Physics, Particle physics, Meson, 010308 nuclear & particles physics, Partial wave analysis, Bremsstrahlung, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Nuclear physics, Excited state, 0103 physical sciences, Isobar, Production (computer science), 010306 general physics, Spin-½
Abstract: A search for exotic mesons in the $$\pi^{+}\pi^{+}\pi^{-}$$ system photoproduced by the charge exchange reaction $$\gamma p\to \pi^{+}\pi^{+}\pi^{-}(n)$$ was carried out by the CLAS collaboration at Jefferson Lab. A tagged-photon beam with energies in the 4.8 to 5.4 GeV range, produced through bremsstrahlung from a 5.744 GeV electron beam, was incident on a liquid-hydrogen target. A Partial Wave Analysis (PWA) was performed on a sample of 83,000 events, the highest such statistics to date in this reaction at these energies. The main objective of this study was to look for the photoproduction of an exotic $$J^{PC} = 1^{-+}$$ resonant state in the 1 to 2 GeV mass range. Our PWA analysis, based on the isobar model, shows production of the $$a_{2}(1320)$$ and the $$\pi_{2}(1670)$$ mesons, but no evidence for the $$a_{1}(1260)$$, nor the $$\pi_{1}(1600)$$ exotic state at the expected levels. An upper limit of 13.5 nb is determined for the exotic $$\pi_1(1600)$$ cross section, less than 2% of the $a_2(1320)
Published: 2009

35. 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

36. Electroproduction ofpπ+π−off protons at0.2<Q2<0.6GeV2and1.3<W<1.57GeV with the CLAS detector

Author: P. Stoler, N. A. Baltzell, V. Crede, K. Hicks, J. R. Calarco, K. A. Griffioen, K. S. Egiyan, J. D. Kellie, C. Paterson, H. Denizli, S. Strauch, M. Klusman, M. Guidal, J. W C McNabb, K. Livingston, Nikolay Shvedunov, G. S. Mutchler, R. Dickson, Shifeng Chen, M. Osipenko, M. Holtrop, G. E. Dodge, V. Gyurjyan, P. Eugenio, P. V. Degtyarenko, Laird Kramer, J. Donnelly, G. Asryan, C. E. Hyde, O. P. Dzyubak, M. Taiuti, Marco A. Huertas, G. Rosner, T. Mineeva, J. Zhang, N. Guler, F. X. Girod, J. Langheinrich, I. Niculescu, V. Batourine, B. Carnahan, R. A. Niyazov, E. De Sanctis, Hovhannes Baghdasaryan, Sylvain Bouchigny, L. C. Smith, J. T. Goetz, J. P. Cummings, D. Lawrence, A.V. Stavinsky, B. B. Niczyporuk, P. Corvisiero, L. Guo, P. Rossi, B. S. Ishkhanov, M. Ungaro, R. A. Miskimen, B. McKinnon, H. G. Juengst, Susan Taylor, E. Wolin, D. I. Sober, J. W. Price, Konstantin Stopani, D. J. Tedeschi, V. Sapunenko, N. Pivnyuk, K. Mikhailov, Y. Prok, D. Branford, Dinko Pocanic, M. Mirazita, H. Egiyan, E. Golovatch, William Brooks, J. M. Laget, L. Todor, S. E. Kuhn, R. Fatemi, J. P. Ball, I. Bedlinskiy, Sergey Kuleshov, Rakhsha Nasseripour, Hall Crannell, M. Bektasoglu, A. Yegneswaran, B. E. Stokes, D. Protopopescu, S. Pozdniakov, A. V. Vlassov, K. V. Dharmawardane, D. S. Carman, G. S. Adams, C. Tur, T. Lee, G. Ricco, K. Joo, J. Kuhn, D. G. Jenkins, A. I. Ostrovidov, Roy Thompson, G. V. O'Rielly, K. Park, R. De Vita, R. A. Schumacher, Elton Smith, R. J. Feuerbach, Victor Mokeev, J. Shaw, Y. Ilieva, S. A. Morrow, C. Djalali, G. Niculescu, M. Anghinolfi, Michael Wood, D. G. Ireland, D. G. Crabb, M. D. Mestayer, P. Coltharp, Friedrich Klein, James Mueller, N. Dashyan, S. Bültmann, T. A. Forest, Brian Raue, G. Gavalian, N. Hassall, M. Bellis, M. Guillo, S. Stepanyan, S. Niccolai, M. M. Ito, E. L. Isupov, Volker D. Burkert, J. Pierce, Avraham Klein, A. S. Biselli, P. D. Rubin, J. Hardie, J. Hu, P. Ambrozewicz, M. Battaglieri, V. S. Serov, L. C. Dennis, Michael L. Williams, B. E. Bonner, R. Bradford, B. A. Mecking, S. Tkachenko, N. Benmouna, F. Sabatié, Y. G. Sharabian, H. Avakian, Kwangsoo Kim, C. Butuceanu, M. Ripani, N. Markov, S. Boiarinov, D. Sharov, Cynthia Marie Hadjidakis, Michael Dugger, H. O. Funsten, E. Pasyuk, S. A. Dytman, Latifa Elouadrhiri, R. C. Minehart, Kei Moriya, C. A. Meyer, A. Tkabladze, G. V. Fedotov, Michael Vineyard, D. P. Weygand, Alexei V. Klimenko, V. P. Kubarovsky, Barry Ritchie, O. Pogorelko, Lorenzo Zana, J. P. Santoro, H. S. Jo, D. Doughty, C. Salgado, M. E. McCracken, P. Nadel-Turonski, Tsutomu Mibe, M. Khandaker, N. Gevorgyan, Z. Krahn, J. Lachniet, N. Baillie, Gerard Gilfoyle, D. Rowntree, M. J. Amaryan, R. W. Gothe, I. Hleiqawi, K. Y. Kim, S. L. Careccia, P. L. Cole, K. L. Giovanetti, B. Asavapibhop, Larry Weinstein, F. W. Hersman, and W. Kim
Subjects: Baryon, Physics, Nuclear and High Energy Physics, Particle physics, Pion, Meson, Hadron, Elementary particle, Invariant mass, Sensitivity (control systems), Nucleon
Abstract: This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process ep{yields}e{sup '}p{pi}{sup +}{pi}{sup -}. The data were collected with the CLAS detector at Jefferson Laboratory. Measurements were carried out in the as yet unexplored kinematic region of photon virtuality 0.2
Published: 2009

37. 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

38. Electroexcitation of the Roper resonance for1.7<Q2<4.5GeV2ine→p→enπ+

Author: B. Zhao, F. W. Hersman, Marco Ripani, S. Dhamija, R. W. Gothe, K. Y. Kim, J. Kuhn, J. P. Santoro, E. De Sanctis, Latifa Elouadrhiri, B. M. Preedom, P. Eugenio, R. C. Minehart, Kei Moriya, D. I. Sober, M. Taiuti, G. Rosner, C. A. Meyer, M. Battaglieri, G. V. Fedotov, P. Collins, J. J. Melone, Lorenzo Zana, R. Bradford, K. Lukashin, J. Shaw, V. Batourine, D. P. Weygand, H. Hakobyan, Friedrich Klein, H. S. Jo, Michael Wood, K. Hafidi, Brian Raue, Gerald Feldman, Elton Smith, R. Fatemi, V. S. Serov, A. V. Vlassov, T. Lee, M. Anghinolfi, P. Coltharp, James Mueller, I. I. Strakovsky, N. A. Baltzell, R. De Vita, P. D. Rubin, A. Cazes, Maryam Moteabbed, C. Salgado, Bernhard Mecking, Y. G. Sharabian, A. Deur, K. A. Griffioen, K. S. Egiyan, K. V. Dharmawardane, Baile Zhang, Alexei V. Klimenko, S. Anefalos Pereira, Z. Krahn, W. K. Brooks, Shifeng Chen, J. D. Kellie, Y. Prok, N. Hassall, M. Bellis, J. Langheinrich, Barry Ritchie, N. Baillie, P. Mattione, M. S. Saini, L. C. Dennis, B. E. Bonner, S. S. Stepanyan, S. A. Philips, R. A. Miskimen, B. McKinnon, H. Avakian, J. T. Goetz, E. Polli, B. L. Berman, D. Sharov, M. Mirazita, D. Branford, K. Livingston, D. S. Dale, Ji Li, L. M. Qin, J. M. Laget, H. Denizli, N. Gevorgyan, C. Paterson, G. Gavalian, W. J. Briscoe, E. Pasyuk, S. Tkachenko, M. D. Mestayer, S. A. Dytman, J. Donnelly, G. Asryan, A. V. Skabelin, N. Benmouna, Gerard Gilfoyle, O. P. Dzyubak, R. A. Niyazov, E. L. Isupov, A. Fradi, D. Sokhan, M. Guillo, V. Crede, Michael L. Williams, W. Gohn, N. Markov, V. Sapunenko, Dinko Pocanic, J. R. Calarco, P. Corvisiero, E. Golovatch, S. Boiarinov, S. E. Kuhn, Charles Hyde, V. P. Kubarovsky, O. Pogorelko, C. Tur, M. J. Amaryan, M. MacCormick, I. Hleiqawi, R. Nasseripour, S. L. Careccia, S. McAleer, F. X. Girod, Laird Kramer, B. E. Stokes, G. S. Adams, J. P. Cummings, Cynthia Marie Hadjidakis, G. E. Dodge, H. Y. Lu, K. L. Giovanetti, L. Blaszczyk, P. V. Degtyarenko, M. Kossov, V. Gyurjyan, K. Joo, I. Popa, Sergey Kuleshov, M. Bektasoglu, Michael Dugger, D. Heddle, M. Nozar, P. Stoler, I. Niculescu, D. Lawrence, J. Zhang, R. De Masi, D. Schott, S. A. Morrow, C. Djalali, R. A. Schumacher, M. Guidal, Larry Weinstein, K. Hicks, M. Holtrop, L. Graham, H. Bagdasaryan, C. I O Gordon, P. Ambrozewicz, S. Bültmann, L. Morand, T. A. Forest, S. Stepanyan, J. Pierce, Avraham Klein, K. Mikhailov, L. Cheng, Nikolay Shvedunov, A. I. Ostrovidov, L. Casey, A. C S Lima, K. Park, N. Kalantarians, B. B. Niczyporuk, D. G. Ireland, Michael Vineyard, N. Pivnyuk, Giovanni Ricco, Atilla Gonenc, E. Wolin, Volker D. Burkert, A. S. Biselli, J. P. Ball, D. S. Carman, D. G. Crabb, J. Salamanca, J. W C McNabb, M. Yurov, J. W. Price, S. Mehrabyan, C. Bookwalter, G. Riccardi, H. Funsten, P. Nadel-Turonski, C. Butuceanu, Tsutomu Mibe, N. Dashyan, K. Hafnaoui, C. Hanretty, G. V. O'Rielly, J. R. Johnstone, Z. W. Zhao, D. Keller, Paolo Rossi, D. G. Jenkins, J. Lachniet, A. Tkabladze, S. Park, Sylvain Bouchigny, D. Rowntree, M. M. Ito, R. S. Hakobyan, L. El Fassi, M. Khandaker, H. G. Juengst, A.V. Stavinsky, D. J. Tedeschi, V. Mokeev, I. Bedlinskiy, L. C. Smith, E. Munevar, B. S. Ishkhanov, M. R. Niroula, V. Kuznetsov, S. Strauch, R. Suleiman, L. Guo, G. S. Mutchler, M. Ungaro, S. Niccolai, J. Hardie, D. Doughty, W. Kim, D. P. Watts, G. Niculescu, J. Yun, D. Cords, H. Egiyan, T. Takeuchi, A. Yegneswaran, M. Osipenko, F. Sabatié, Kalvir S. Dhuga, M. Y. Gabrielyan, R. Dickson, R. J. Feuerbach, N. Guler, Inna Aznauryan, P. L. Cole, S. Barrow, L. Todor, D. Protopopescu, S. Pozdniakov, M. Garçon, Y. Ilieva, and B. Moreno
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Roper resonance, Meson production, 010308 nuclear & particles physics, State (functional analysis), 01 natural sciences, Helicity, Baryon, 0103 physical sciences, Pi, Isobar, 010306 general physics, Ground state
Abstract: The helicity amplitudes of the electroexcitation of the Roper resonance are extracted for $1.7l{Q}^{2}l4.5\phantom{\rule{0.3em}{0ex}}{\mathrm{GeV}}^{2}$ from recent high precision JLab-CLAS cross section and longitudinally polarized beam asymmetry data for ${\ensuremath{\pi}}^{+}$ electroproduction on protons at $W=1.15\ensuremath{-}1.69$ GeV. The analysis is made using two approaches, dispersion relations and a unitary isobar model, which give consistent ${Q}^{2}$ behavior of the helicity amplitudes for the ${\ensuremath{\gamma}}^{*}p\ensuremath{\rightarrow}$N(1440)P${}_{11}$ transition. It is found that the transverse helicity amplitude ${A}_{1/2}$, which is large and negative at ${Q}^{2}=0$, becomes large and positive at ${Q}^{2}\ensuremath{\simeq}2\phantom{\rule{0.3em}{0ex}}{\mathrm{GeV}}^{2}$, and then drops slowly with ${Q}^{2}$. The longitudinal helicity amplitude ${S}_{1/2}$, which was previously found from CLAS $\stackrel{\ensuremath{\rightarrow}}{e}p\ensuremath{\rightarrow}\mathit{ep}{\ensuremath{\pi}}^{0},\mathit{en}{\ensuremath{\pi}}^{+}$ data to be large and positive at ${Q}^{2}=0.4,0.65\phantom{\rule{0.3em}{0ex}}{\mathrm{GeV}}^{2}$, drops with ${Q}^{2}$. Available model predictions for ${\ensuremath{\gamma}}^{*}p\ensuremath{\rightarrow}$N(1440)P${}_{11}$ allow us to conclude that these results provide strong evidence in favor of N(1440)P${}_{11}$ as a first radial excitation of the $3q$ ground state. The results of the present paper also confirm the conclusion of our previous analysis for ${Q}^{2}l1$ GeV${}^{2}$ that the presentation of N(1440)P${}_{11}$ as a q$^{3}\mathrm{G}$ hybrid state is ruled out.
Published: 2008

39. 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

40. Electroproduction ofϕ(1020)mesons at1.4⩽Q2⩽3.8GeV2measured with the CLAS spectrometer

Author: M. Guidal, R. Nasseripour, M. Holtrop, I. I. Strakovsky, R. J. Feuerbach, G. V. O'Rielly, Cynthia Marie Hadjidakis, B. Zhao, Z. W. Zhao, D. G. Jenkins, Alexei V. Klimenko, R. De Masi, A. Deur, Michael Dugger, H. O. Funsten, Michael Wood, K. Hafidi, N. Dashyan, B. E. Stokes, G. S. Adams, Barry Ritchie, P. L. Cole, B. M. Preedom, V. S. Serov, C. E. Hyde-Wright, S. McAleer, J. Langheinrich, S. S. Stepanyan, S. A. Philips, L. Blaszczyk, G. Ricco, J. Ball, F. W. Hersman, Sergey Kuleshov, Lorenzo Zana, J. P. Santoro, M. Bektasoglu, M. Nozar, M. Garçon, Elton Smith, M. Battaglieri, J. Salamanca, J. Lachniet, A. Tkabladze, Latifa Elouadrhiri, P. Coltharp, H. Hakobyan, F. Sabatié, H. S. Jo, K. Livingston, D. S. Dale, J. W C McNabb, J. R. Ficenec, N. A. Baltzell, V. Kuznetsov, R. Bradford, R. C. Minehart, Kei Moriya, C. A. Meyer, J. W. Price, M. M. Ito, S. Strauch, V. Mokeev, C. Salgado, L. Cheng, B. L. Berman, L. M. Qin, D. P. Watts, H. Egiyan, K. A. Griffioen, J. P. Cummings, V. Gyurjyan, G. V. Fedotov, S. A. Morrow, M. Anghinolfi, E. De Sanctis, V. P. Kubarovsky, D. Keller, Nikolay Shvedunov, Friedrich Klein, R. Dickson, James Mueller, C. Paterson, D. I. Sober, O. Pogorelko, C. Djalali, E. Munevar, D. P. Weygand, L. C. Smith, M. Kossov, L. C. Dennis, J. Zhang, B. E. Bonner, H. Avakian, Ji Li, M. Guillo, Brian Raue, S. Niccolai, I. Popa, S. Dhamija, N. Hassall, M. Bellis, H. Bagdasaryan, F. X. Girod, B. S. Ishkhanov, S. Park, R. Fatemi, N. Kalantarians, W. Gohn, A. V. Vlassov, J. R. Johnstone, D. Sharov, M. D. Mestayer, Y. G. Sharabian, Sylvain Bouchigny, J. Hardie, H. G. Juengst, J. Kuhn, L. El Fassi, C. Marchand, G. Audit, E. Wolin, H. Denizli, E. L. Isupov, R. De Vita, J. D. Kellie, L. Morand, Michael L. Williams, P. Rossi, N. Guler, William Brooks, Christian Weiss, A.V. Stavinsky, M. R. Niroula, R. W. Gothe, S. Boiarinov, W. Kim, M. Mirazita, W. J. Briscoe, L. Casey, G. Gavalian, C. Hanretty, S. Tkachenko, S. Anefalos Pereira, G. Niculescu, P. Nadel-Turonski, N. Benmouna, J. P. Ball, Tsutomu Mibe, Y. Prok, D. S. Carman, A. V. Skabelin, A. Cazes, Maryam Moteabbed, Hall Crannell, Bernhard Mecking, D. J. Tedeschi, M. Ripani, E. Pasyuk, V. Crede, Shifeng Chen, G. Rosner, K. V. Dharmawardane, J. R. Calarco, S. A. Dytman, I. Bedlinskiy, B. B. Niczyporuk, L. Guo, M. Ungaro, N. Pivnyuk, D. G. Crabb, R. A. Schumacher, M. Khandaker, S. Barrow, P. Mattione, M. S. Saini, P. Eugenio, M. Taiuti, K. Joo, G. S. Mutchler, Michael Vineyard, D. Cords, L. Graham, C. I O Gordon, A. Yegneswaran, M. Yurov, J. T. Goetz, S. Mehrabyan, S. Bültmann, V. Sapunenko, P. Collins, Dinko Pocanic, J. J. Melone, M. Osipenko, S. Procureur, T. A. Forest, C. Bookwalter, G. Riccardi, S. Stepanyan, S. E. Kuhn, Kalvir S. Dhuga, C. Butuceanu, J. Pierce, Avraham Klein, C. Tur, G. E. Dodge, L. Todor, H. Y. Lu, P. V. Degtyarenko, M. J. Amaryan, D. Protopopescu, M. MacCormick, I. Hleiqawi, S. Pozdniakov, I. Niculescu, D. Lawrence, S. L. Careccia, D. Schott, K. L. Giovanetti, Larry Weinstein, D. Doughty, D. Heddle, Y. Ilieva, B. Moreno, R. A. Miskimen, B. McKinnon, D. Branford, J. M. Laget, N. Gevorgyan, A. I. Ostrovidov, K. Park, D. G. Ireland, Volker D. Burkert, A. S. Biselli, Z. Krahn, N. Baillie, Laird Kramer, Gerard Gilfoyle, D. Sokhan, A. Fradi, N. Markov, G. Asryan, O. P. Dzyubak, R. A. Niyazov, P. Corvisiero, K. S. Egiyan, K. Mikhailov, P. Stoler, and K. Hicks
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Vector meson dominance, 01 natural sciences, Helicity, Gluon, 0103 physical sciences, Exponent, Vector meson, 010306 general physics, Nucleon, Exchange model
Abstract: Electroproduction of exclusive \ensuremath{\phi} vector mesons has been studied with the CLAS detector in the kinematic range $1.4\ensuremath{\leqslant}{Q}^{2}\ensuremath{\leqslant}3.8$ GeV${}^{2},0.0\ensuremath{\leqslant}{t}^{'}\ensuremath{\leqslant}3.6$ GeV${}^{2}$, and $2.0\ensuremath{\leqslant}W\ensuremath{\leqslant}3.0$ GeV. The scaling exponent for the total cross section as $1/({Q}^{2}+{M}_{\ensuremath{\phi}}^{2}){}^{n}$ was determined to be $n=2.49\ifmmode\pm\else\textpm\fi{}0.33$. The slope of the four-momentum transfer ${t}^{'}$ distribution is ${b}_{\ensuremath{\phi}}=0.98\ifmmode\pm\else\textpm\fi{}0.17$ GeV${}^{\ensuremath{-}2}$. Under the assumption of $s$-channel helicity conservation, we determine the ratio of longitudinal to transverse cross sections to be $R=0.86\ifmmode\pm\else\textpm\fi{}0.24$. A two-gluon exchange model is able to reproduce the main features of the data.
Published: 2008

41. Ratios ofN15/C12andHe4/C12inclusive electroproduction cross sections in the nucleon resonance region

Author: K. S. Egiyan, L. Guo, K. Mikhailov, Calarco, P. Stoler, K. Hicks, Susan Taylor, M. Ungaro, C. D. Keith, J. Donnelly, G. Asryan, O. P. Dzyubak, R. A. Niyazov, H. Egiyan, P. Corvisiero, C. E. Hyde-Wright, Y. Ilieva, R. A. Miskimen, G. Ricco, M. Amarian, E. Wolin, B. Zhao, B. McKinnon, R. Fatemi, S. Strauch, Laird Kramer, K. Park, B. B. Niczyporuk, P. Dragovitsch, Nikolay Shvedunov, J. P. Ball, Y. Prok, D. S. Carman, K. Joo, L. M. Qin, R. Suleiman, D. Branford, N. Pivnyuk, Shifeng Chen, A. V. Vlassov, Sergey Kuleshov, J. Yun, D. Cords, M. Mirazita, D. G. Crabb, J. M. Laget, M. Bektasoglu, G. S. Mutchler, S. Niccolai, A. Yegneswaran, M. Battaglieri, Niroula, A. Fradi, M. Nozar, N. A. Baltzell, J. Hardie, P. Eugenio, H. G. Juengst, S. A. Morrow, R. De Vita, O. Pogorelko, C. Djalali, Kubarovsky, C. Paterson, Friedrich Klein, K. A. Griffioen, R. J. Feuerbach, N. Markov, K. Livingston, M. Klusman, M. Taiuti, A.V. Stavinsky, N. Kalantarians, Brian Raue, F. W. Hersman, R. Bradford, K. Lukashin, Marco A. Huertas, D. J. Tedeschi, J. Langheinrich, A. I. Ostrovidov, A. C S Lima, J. T. Goetz, J. Shaw, E. Polli, S. S. Stepanyan, Crede, S. A. Philips, P. Collins, D. G. Ireland, Michael Wood, K. Hafidi, I. Bedlinskiy, Batourine, Elton Smith, Gerard Gilfoyle, Mestayer, Volker D. Burkert, V. S. Serov, L. C. Dennis, A. S. Biselli, N. Guler, B. E. Bonner, H. Avakian, B. Carnahan, G. Gavalian, S. Tkachenko, M. Anghinolfi, N. Benmouna, M. Ripani, Kwangsoo Kim, J. Kuhn, J. Zhang, S Anefalos, R. W. Gothe, G. Riccardi, A. Cazes, James Mueller, J. W C McNabb, Maryam Moteabbed, Bernhard Mecking, J. D. Kellie, S. Barrow, C. Butuceanu, K. V. Dharmawardane, E. Pasyuk, H. Bagdasaryan, Mokeev, Cynthia Marie Hadjidakis, E. De Sanctis, P. D. Rubin, K. Y. Kim, Y. G. Sharabian, M. Guidal, S. A. Dytman, R. G. Fersch, Michael Dugger, H. O. Funsten, L. Todor, N. Baillie, D. I. Sober, D. Protopopescu, M. Holtrop, S. Pozdniakov, M. Garçon, Hong Lu, Sbr Ultmann, Dinko Pocanic, Sylvain Bouchigny, P. L. Cole, P. Rossi, S. E. Kuhn, M. Bellis, J. Lachniet, H. Denizli, A. Tkabladze, D. Rowntree, Sapunenko, R. S. Hakobyan, A. V. Skabelin, P. Nadel-Turonski, Tsutomu Mibe, R. C. Minehart, C. A. Meyer, G. V. Fedotov, B. E. Stokes, G. S. Adams, D. P. Weygand, U. Thoma, M. Khandaker, L. C. Smith, B. S. Ishkhanov, D. Doughty, D. Heddle, Gyurjyan, W. Kim, S. Stepanyan, G. Niculescu, M. MacCormick, I. Hleiqawi, G. Rosner, R. Nasseripour, P. Bosted, S. L. Careccia, K. L. Giovanetti, Larry Weinstein, P. Coltharp, M. M. Ito, M. Osipenko, F. Sabatié, M. Guillo, K. Beard, L. Elouadrhiri, A. Deur, W. K. Brooks, R. A. Schumacher, G. V. O'Rielly, E. Golovatch, L. Morand, T. A. Forest, J. Pierce, Avraham Klein, Z. W. Zhao, J. P. Cummings, Hall Crannell, M. Kossov, D. G. Jenkins, G. E. Dodge, P. V. Degtyarenko, S. McAleer, F. X. Girod, I. Niculescu, D. Lawrence, J. W. Price, R. De Masi, Ji Li, E. L. Isupov, Michael L. Williams, S. Boiarinov, Michael Vineyard, B. M. Preedom, Lorenzo Zana, J. P. Santoro, H. S. Jo, and C. Salgado
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Scattering, Hadron, Carbon-12, Deep inelastic scattering, 01 natural sciences, Nuclear physics, Baryon, Helium-4, 0103 physical sciences, Phenomenological model, Atomic physics, 010306 general physics, Nucleon
Abstract: The (W,Q{sup 2}) dependence of the ratio of inclusive electron scattering cross sections for {sup 15}N/{sup 12}C was determined in the kinematic ranges 0.8
Published: 2008

42. 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

43. 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

44. Polarized structure functionσLT'forH1(e→,e'K+)Λin the nucleon resonance region

Author: L. C. Dennis, B. E. Bonner, S. McAleer, F. X. Girod, L. Blaszczyk, H. Avakian, D. Sharov, D. Lawrence, P. Stoler, K. Hicks, K. S. Egiyan, Laird Kramer, D. Doughty, L. C. Smith, E. Munevar, V. Mokeev, K. Mikhailov, Elton Smith, J. Langheinrich, S. S. Stepanyan, S. A. Philips, W. J. Briscoe, E. Pasyuk, B. S. Ishkhanov, D. P. Watts, S. A. Dytman, R. A. Schumacher, P. Eugenio, D. Heddle, H. Egiyan, J. W. Price, M. F. Vineyard, G. Asryan, O. P. Dzyubak, R. A. Niyazov, P. Nadel-Turonski, Tsutomu Mibe, H. G. Juengst, P. Corvisiero, E. Wolin, M. Taiuti, M. Anghinolfi, M. Kossov, James Mueller, E. De Sanctis, M. R. Niroula, J. P. Ball, M. Battaglieri, Y. Ilieva, P. D. Rubin, Y. G. Sharabian, A.V. Stavinsky, D. S. Carman, Patrick Girard, W. Kim, T. A. Forest, G. Niculescu, J. Lachniet, D. I. Sober, R. J. Feuerbach, Michael Wood, A. I. Ostrovidov, V. Sapunenko, L. Casey, Dinko Pocanic, R. Bradford, K. Lukashin, D. J. Tedeschi, K. Park, C. Hanretty, S. Stepanyan, K. Hafidi, D. G. Crabb, J. Pierce, V. S. Serov, S. E. Kuhn, Avraham Klein, E. Anciant, B. E. Stokes, B. B. Niczyporuk, I. Bedlinskiy, G. Ricco, D. G. Ireland, B. Moreno, G. E. Dodge, H. Y. Lu, P. V. Degtyarenko, N. Pivnyuk, Volker D. Burkert, A. S. Biselli, G. Audit, C. E. Hyde-Wright, R. Fatemi, A. V. Vlassov, R. De Vita, Z. W. Zhao, V. Kuznetsov, K. Joo, S. Procureur, Maryam Moteabbed, B. Zhao, D. G. Jenkins, Bernhard Mecking, Z. Krahn, Shifeng Chen, D. Sayre, S. Strauch, P. Collins, D. Protopopescu, I. Niculescu, M. Khandaker, S. Pozdniakov, Sylvain Bouchigny, J. J. Manak, P. Rossi, N. Baillie, S. Anefalos Pereira, A. Fradi, C. Cetina, A. Shafi, P. Dragovitsch, P. Mattione, Friedrich Klein, Kwangsoo Kim, R. A. Miskimen, B. McKinnon, V. P. Kubarovsky, G. Riccardi, J. Salamanca, Sergey Kuleshov, M. Osipenko, R. De Masi, Brian Raue, D. Branford, M. Mirazita, J. M. Laget, J. W C McNabb, S. A. Morrow, C. Djalali, G. S. Mutchler, M. Bektasoglu, S. Niccolai, F. Sabatié, N. Gevorgyan, C. Butuceanu, K. Beard, F. W. Hersman, N. A. Baltzell, J. T. Goetz, K. Livingston, D. S. Dale, N. Markov, O. Pogorelko, P. Coltharp, V. Crede, K. A. Griffioen, R. Dickson, J. Hardie, M. J. Amaryan, Kalvir S. Dhuga, P. Ambrozewicz, Gerard Gilfoyle, M. Nozar, D. Sokhan, M. MacCormick, M. Bellis, I. Hleiqawi, M. M. Ito, S. L. Careccia, J. Kuhn, R. W. Gothe, G. Gavalian, N. Guler, J. R. Calarco, G. A. Peterson, S. Simionatto, J. D. Kellie, S. Taylor, S. Tkachenko, K. Y. Kim, K. L. Giovanetti, B. Asavapibhop, J. P. Santoro, Roy Thompson, Larry Weinstein, S. Barrow, N. Benmouna, M. Ripani, M. Guidal, M. Guillo, L. Cheng, M. D. Mestayer, G. Rosner, R. Nasseripour, Nikolay Shvedunov, J. Hu, E. L. Isupov, L. Elouadrhiri, M. Holtrop, Michael L. Williams, S. Boiarinov, I. I. Strakovsky, B. M. Preedom, A. Deur, Lorenzo Zana, N. Kalantarians, H. Hakobyan, H. S. Jo, Gerald Feldman, Michael Dugger, W. K. Brooks, K. Wang, H. O. Funsten, C. Salgado, B. L. Berman, L. M. Qin, C. Paterson, Thierry Auger, M. Garçcon, J. R. Johnstone, V. Gyurjyan, J. Zhang, H. Bagdasaryan, L. Guo, M. Ungaro, A. Tkabladze, J. Yun, D. Cords, L. El Fassi, A. Yegneswaran, P. L. Cole, Y. Prok, Barry Ritchie, R. C. Minehart, Kei Moriya, C. A. Meyer, G. V. Fedotov, D. P. Weygand, A. V. Skabelin, and N. Dashyan
Subjects: Physics, Nuclear and High Energy Physics, Angular range, 010308 nuclear & particles physics, Hydrogen-1, Structure function, Hyperon, Sigma, Resonance, Lambda, 01 natural sciences, 0103 physical sciences, Atomic physics, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: The first measurements of the polarized structure function {sigma}{sub LT{sup '}} for the reaction {sup 1}H(e-vector,e{sup '}K{sup +}){lambda} in the nucleon resonance region are reported. Measurements are included from threshold up to W=2.05 GeV for central values of Q{sup 2} of 0.65 and 1.00 GeV{sup 2}, and nearly the entire kaon center-of-mass angular range. {sigma}{sub LT{sup '}} is the imaginary part of the longitudinal-transverse response and is expected to be sensitive to interferences between competing intermediate s-channel resonances, as well as resonant and nonresonant processes. The results for {sigma}{sub LT{sup '}} are comparable in magnitude to previously reported results from CLAS for {sigma}{sub LT}, the real part of the same response. An intriguing sign change in {sigma}{sub LT{sup '}} is observed in the high Q{sup 2} data at W{approx_equal}1.9 GeV. Comparisons to several existing model predictions are shown.
Published: 2008

45. 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

46. 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

47. 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

48. Cross sections and beam asymmetries fore→p→enπ+in the nucleon resonance region for1.7⩽Q2⩽4.5GeV2

Author: R. Fatemi, A. V. Vlassov, T. Lee, H. G. Juengst, A. Fradi, R. De Vita, A.V. Stavinsky, N. Markov, N. Hassall, B. Zhao, D. J. Tedeschi, S. Park, Sylvain Bouchigny, K. Hafnaoui, K. Livingston, D. S. Dale, G. Rosner, R. Nasseripour, I. Bedlinskiy, S. Anefalos Pereira, P. Rossi, E. Wolin, R. Dickson, Ji Li, J. P. Ball, Y. Prok, F. W. Hersman, V. Kuznetsov, J. P. Cummings, V. Sapunenko, Dinko Pocanic, C. Hanretty, N. Guler, S. McAleer, F. X. Girod, L. Blaszczyk, D. G. Ireland, V. Crede, S. E. Kuhn, M. Osipenko, F. Sabatié, J. Lachniet, H. Denizli, A. Tkabladze, J. R. Johnstone, M. Kossov, J. R. Calarco, D. G. Crabb, D. Rowntree, J. Donnelly, G. Asryan, O. P. Dzyubak, R. A. Niyazov, A. I. Ostrovidov, A. C S Lima, R. Suleiman, I. Popa, G. S. Mutchler, L. Guo, G. E. Dodge, H. Y. Lu, M. Ungaro, D. Doughty, M. D. Mestayer, S. Niccolai, E. De Sanctis, Volker D. Burkert, A. S. Biselli, E. L. Isupov, C. Tur, M. Guillo, D. Heddle, W. Gohn, M. Guidal, J. Hardie, Z. Krahn, J. Kuhn, P. L. Cole, S. Barrow, Elton Smith, Friedrich Klein, M. Yurov, Kalvir S. Dhuga, Michael L. Williams, P. V. Degtyarenko, N. Baillie, M. Anghinolfi, James Mueller, A. V. Skabelin, L. Todor, D. Protopopescu, S. Mehrabyan, D. I. Sober, S. Pozdniakov, M. Garçon, J. Yun, D. Cords, S. S. Stepanyan, S. Boiarinov, P. D. Rubin, Y. G. Sharabian, A. Yegneswaran, R. A. Miskimen, Brian Raue, B. McKinnon, Atilla Gonenc, R. C. Minehart, Kei Moriya, C. A. Meyer, J. W. Price, T. Takeuchi, M. Holtrop, I. Niculescu, C. Bookwalter, G. V. Fedotov, W. Kim, G. Niculescu, G. Gavalian, Laird Kramer, G. Riccardi, D. Lawrence, Baile Zhang, Shifeng Chen, S. Dhamija, J. Shaw, P. Corvisiero, S. Tkachenko, L. El Fassi, D. Branford, Michael Wood, R. De Masi, B. E. Stokes, K. Hafidi, C. Butuceanu, D. Keller, D. Schott, G. S. Adams, N. A. Baltzell, V. Gyurjyan, N. Benmouna, M. Ripani, K. Joo, N. Dashyan, P. Mattione, D. P. Weygand, M. S. Saini, M. Mirazita, J. M. Laget, V. S. Serov, R. W. Gothe, Y. Ilieva, N. Gevorgyan, Michael Vineyard, J. Zhang, P. Nadel-Turonski, Alexei V. Klimenko, L. Cheng, Tsutomu Mibe, B. M. Preedom, L. Elouadrhiri, J. Langheinrich, K. Y. Kim, Nikolay Shvedunov, J. T. Goetz, E. Polli, H. Bagdasaryan, Lorenzo Zana, J. P. Santoro, Barry Ritchie, S. A. Philips, M. Khandaker, P. Eugenio, M. Taiuti, G. V. O'Rielly, Z. W. Zhao, I. I. Strakovsky, P. Stoler, J. D. Kellie, S. A. Morrow, V. P. Kubarovsky, V. Mokeev, R. A. Schumacher, B. Moreno, Gerard Gilfoyle, G. Ricco, C. Djalali, H. Hakobyan, H. S. Jo, Gerald Feldman, K. Hicks, O. Pogorelko, A. Deur, D. G. Jenkins, Federico Ronchetti, L. C. Dennis, L. Graham, P. Collins, B. E. Bonner, J. J. Melone, C. Salgado, D. Sokhan, K. Park, Daniel S. Carman, M. J. Amaryan, K. S. Egiyan, C. I O Gordon, N. Kalantarians, H. Avakian, W. K. Brooks, M. MacCormick, I. Hleiqawi, C. E. Hyde-Wright, D. Sharov, P. Ambrozewicz, K. Mikhailov, S. Bültmann, L. Morand, T. A. Forest, Cynthia Marie Hadjidakis, S. L. Careccia, Sergey Kuleshov, S. Stepanyan, K. L. Giovanetti, J. Pierce, Avraham Klein, Larry Weinstein, M. Bektasoglu, M. Nozar, Michael Dugger, H. O. Funsten, W. J. Briscoe, E. Pasyuk, S. A. Dytman, J. Salamanca, J. W C McNabb, L. Casey, B. B. Niczyporuk, N. Pivnyuk, V. Batourine, M. Battaglieri, L. C. Smith, E. Munevar, B. S. Ishkhanov, B. L. Berman, R. Bradford, B. A. Mecking, K. Lukashin, L. M. Qin, R. S. Hakobyan, K. A. Griffioen, C. Paterson, M. Klusman, D. P. Watts, M. R. Niroula, E. Golovatch, M. Bellis, S. Strauch, H. Egiyan, A. Cazes, Maryam Moteabbed, P. Coltharp, K. V. Dharmawardane, M. Y. Gabrielyan, R. J. Feuerbach, M. M. Ito, and Inna Aznauryan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Resonance, 01 natural sciences, Excited state, Isospin, 0103 physical sciences, Production (computer science), Invariant mass, Sensitivity (control systems), Atomic physics, 010306 general physics, Nucleon
Abstract: The exclusive electroproduction process $\stackrel{\ensuremath{\rightarrow}}{e}p\ensuremath{\rightarrow}{e}^{'}n{\ensuremath{\pi}}^{+}$ was measured in the range of the photon virtuality ${Q}^{2}=1.7\text{\ensuremath{-}}4.5 {\mathrm{GeV}}^{2}$, and the invariant mass range for the $n{\ensuremath{\pi}}^{+}$ system of $W=1.15\text{\ensuremath{-}}1.7 \mathrm{GeV}$ using the CEBAF Large Acceptance Spectrometer. For the first time, these kinematics are probed in exclusive ${\ensuremath{\pi}}^{+}$ production from protons with nearly full coverage in the azimuthal and polar angles of the $n{\ensuremath{\pi}}^{+}$ center-of-mass system. The $n{\ensuremath{\pi}}^{+}$ channel has particular sensitivity to the isospin \textonehalf{} excited nucleon states, and together with the $p{\ensuremath{\pi}}^{0}$ final state will serve to determine the transition form factors of a large number of resonances. The largest discrepancy between these results and present modes was seen in the ${\ensuremath{\sigma}}_{{\mathit{LT}}^{'}}$ structure function. In this experiment, 31,295 cross section and 4,184 asymmetry data points were measured. Because of the large volume of data, only a reduced set of structure functions and Legendre polynomial moments can be presented that are obtained in model-independent fits to the differential cross sections.
Published: 2008

49. Analyzing power of inclusive production ofπ+,π−, andKS0by polarized protons at 13.3 and 18.5 GeV/c

Author: Z. Bar-Yam, W. Kern, A. Birman, Serban Protopopescu, Jay Roberts, L. Madansky, J.M. Clement, R. Moss, S. U. Chung, H. J. Willutzki, E. King, A. Etkin, G.C. Phillips, B. W. Mayes, H.E. Miettinen, N. Krishna, J. A. Buchanan, M. Nessi, L. S. Pinsky, S. R. Tonse, R. C. Fernow, Paul M. Stevenson, F. Nessi-Tedaldi, J. P. Dowd, T. J. Hallman, H.G. Kirk, J. W. Kruk, M. D. Corcoran, B. E. Bonner, and G. S. Mutchler
Subjects: Nuclear reaction, Physics, Pion, Meson, Proton, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Hadron, Pi, Elementary particle, Atomic physics, Boson
Abstract: We have measured the analyzing power in {pi}{sup +}, {pi}{sup {minus}}, and {ital K}{sub {ital S}}{sup 0} production by a polarized proton beam at 13.3 and 18.5 GeV/{ital c}. The data cover the central and the beam fragmentation region, in the transverse-momentum range up to 2 GeV/{ital c}. The results indicate that sizable effects are present at high {ital x}{sub {ital F}} and also persist into the hard-scattering region for {ital K}{sub {ital S}}{sup 0} and {pi}{sup +}. A zero value of the analyzing power was observed for {pi}{sup {minus}} production.
Published: 1990

50. 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

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