Search

Your search keyword '"D. Reichhold"' showing total 4 results
Start Over Author "D. Reichhold" Journal physics letters b
4 results on '"D. Reichhold"'

1. Hadronization geometry from net-charge angular correlations on momentum subspace (η,ϕ) in Au–Au collisions at sNN=130 GeV

Author

J. Adams, M.M. Aggarwal, Z. Ahammed, J. Amonett, B.D. Anderson, D. Arkhipkin, G.S. Averichev, S.K. Badyal, Y. Bai, J. Balewski, O. Barannikova, L.S. Barnby, J. Baudot, S. Bekele, V.V. Belaga, A. Bellingeri-Laurikainen, R. Bellwied, J. Berger, B.I. Bezverkhny, S. Bharadwaj, A. Bhasin, A.K. Bhati, V.S. Bhatia, H. Bichsel, J. Bielcik, J. Bielcikova, A. Billmeier, L.C. Bland, C.O. Blyth, S.-L. Blyth, B.E. Bonner, M. Botje, A. Boucham, J. Bouchet, A.V. Brandin, A. Bravar, M. Bystersky, R.V. Cadman, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, J. Castillo, O. Catu, D. Cebra, Z. Chajecki, P. Chaloupka, S. Chattopadhyay, H.F. Chen, J.H. Chen, Y. Chen, J. Cheng, M. Cherney, A. Chikanian, H.A. Choi, W. Christie, J.P. Coffin, T.M. Cormier, M.R. Cosentino, J.G. Cramer, H.J. Crawford, D. Das, S. Das, M. Daugherity, M.M. de Moura, T.G. Dedovich, M. DePhillips, A.A. Derevschikov, L. Didenko, T. Dietel, S.M. Dogra, W.J. Dong, X. Dong, J.E. Draper, F. Du, A.K. Dubey, V.B. Dunin, J.C. Dunlop, M.R. Dutta Mazumdar, V. Eckardt, W.R. Edwards, L.G. Efimov, V. Emelianov, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, P. Fachini, J. Faivre, R. Fatemi, J. Fedorisin, K. Filimonov, P. Filip, E. Finch, V. Fine, Y. Fisyak, K.S.F. Fornazier, J. Fu, C.A. Gagliardi, L. Gaillard, J. Gans, M.S. Ganti, F. Geurts, V. Ghazikhanian, P. Ghosh, J.E. Gonzalez, H. Gos, O. Grachov, O. Grebenyuk, D. Grosnick, S.M. Guertin, Y. Guo, A. Gupta, N. Gupta, T.D. Gutierrez, T.J. Hallman, A. Hamed, D. Hardtke, J.W. Harris, M. Heinz, T.W. Henry, S. Hepplemann, B. Hippolyte, A. Hirsch, E. Hjort, G.W. Hoffmann, M.J. Horner, H.Z. Huang, S.L. Huang, E.W. Hughes, T.J. Humanic, G. Igo, A. Ishihara, P. Jacobs, W.W. Jacobs, M. Jedynak, H. Jiang, P.G. Jones, E.G. Judd, S. Kabana, K. Kang, M. Kaplan, D. Keane, A. Kechechyan, V.Yu. Khodyrev, B.C. Kim, J. Kiryluk, A. Kisiel, E.M. Kislov, J. Klay, S.R. Klein, D.D. Koetke, T. Kollegger, M. Kopytine, L. Kotchenda, K.L. Kowalik, M. Kramer, P. Kravtsov, V.I. Kravtsov, K. Krueger, C. Kuhn, A.I. Kulikov, A. Kumar, R.Kh. Kutuev, A.A. Kuznetsov, M.A.C. Lamont, J.M. Landgraf, S. Lange, F. Laue, J. Lauret, A. Lebedev, R. Lednicky, C.-H. Lee, S. Lehocka, M.J. LeVine, C. Li, Q. Li, Y. Li, G. Lin, S.J. Lindenbaum, M.A. Lisa, F. Liu, H. Liu, J. Liu, L. Liu, Q.J. Liu, Z. Liu, T. Ljubicic, W.J. Llope, H. Long, R.S. Longacre, M. Lopez-Noriega, W.A. Love, Y. Lu, T. Ludlam, D. Lynn, G.L. Ma, J.G. Ma, Y.G. Ma, D. Magestro, S. Mahajan, D.P. Mahapatra, R. Majka, L.K. Mangotra, R. Manweiler, S. Margetis, C. Markert, L. Martin, J.N. Marx, H.S. Matis, Yu.A. Matulenko, C.J. McClain, T.S. McShane, F. Meissner, Yu. Melnick, A. Meschanin, M.L. Miller, N.G. Minaev, C. Mironov, A. Mischke, D.K. Mishra, J. Mitchell, B. Mohanty, L. Molnar, C.F. Moore, D.A. Morozov, M.G. Munhoz, B.K. Nandi, S.K. Nayak, T.K. Nayak, J.M. Nelson, P.K. Netrakanti, V.A. Nikitin, L.V. Nogach, S.B. Nurushev, G. Odyniec, A. Ogawa, V. Okorokov, M. Oldenburg, D. Olson, S.K. Pal, Y. Panebratsev, S.Y. Panitkin, A.I. Pavlinov, T. Pawlak, T. Peitzmann, V. Perevoztchikov, C. Perkins, W. Peryt, V.A. Petrov, S.C. Phatak, R. Picha, M. Planinic, J. Pluta, N. Porile, J. Porter, A.M. Poskanzer, M. Potekhin, E. Potrebenikova, B.V.K.S. Potukuchi, D. Prindle, C. Pruneau, J. Putschke, G. Rakness, R. Raniwala, S. Raniwala, O. Ravel, R.L. Ray, S.V. Razin, D. Reichhold, J.G. Reid, J. Reinnarth, G. Renault, F. Retiere, 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, S. Salur, J. Sandweiss, M. Sarsour, I. Savin, P.S. Sazhin, J. Schambach, R.P. Scharenberg, N. Schmitz, K. Schweda, J. Seger, P. Seyboth, E. Shahaliev, M. Shao, W. Shao, M. Sharma, W.Q. Shen, K.E. Shestermanov, S.S. Shimanskiy, E. Sichtermann, F. Simon, R.N. Singaraju, N. Smirnov, R. Snellings, G. Sood, P. Sorensen, J. Sowinski, J. Speltz, H.M. Spinka, B. Srivastava, A. Stadnik, T.D.S. Stanislaus, R. Stock, A. Stolpovsky, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, E. Sugarbaker, M. Sumbera, B. Surrow, M. Swanger, T.J.M. Symons, A. Szanto de Toledo, A. Tai, J. Takahashi, A.H. Tang, T. Tarnowsky, D. Thein, J.H. Thomas, A.R. Timmins, S. Timoshenko, M. Tokarev, T.A. Trainor, S. Trentalange, R.E. Tribble, O.D. Tsai, J. Ulery, T. Ullrich, D.G. Underwood, G. Van Buren, N. van der Kolk, M. van Leeuwen, A.M. Vander Molen, R. Varma, I.M. Vasilevski, A.N. Vasiliev, R. Vernet, S.E. Vigdor, Y.P. Viyogi, S. Vokal, S.A. Voloshin, W.T. Waggoner, F. Wang, G. Wang, X.L. Wang, Y. Wang, Z.M. Wang, H. Ward, J.W. Watson, J.C. Webb, G.D. Westfall, A. Wetzler, C. Whitten, H. Wieman, S.W. Wissink, R. Witt, J. Wood, J. Wu, N. Xu, Z. Xu, Z.Z. Xu, E. Yamamoto, P. Yepes, I.-K. Yoo, V.I. Yurevich, I. Zborovsky, H. Zhang, W.M. Zhang, Y. Zhang, Z.P. Zhang, C. Zhong, R. Zoulkarneev, Y. Zoulkarneeva, A.N. Zubarev, and J.X. Zuo

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Hadron, Angular difference, Geometry, 01 natural sciences, Hadronization, Azimuth, Nuclear physics, Pseudorapidity, 0103 physical sciences, Transverse momentum, Beam direction, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Subspace topology
Abstract

We present the first measurements of charge-dependent correlations on angular difference variables η 1 − η 2 (pseudorapidity) and ϕ 1 − ϕ 2 (azimuth) for primary charged hadrons with transverse momentum 0.15 ⩽ p t ⩽ 2 GeV / c and | η | ⩽ 1.3 from Au–Au collisions at s N N = 130 GeV . We observe correlation structures not predicted by theory but consistent with evolution of hadron emission geometry with increasing centrality from one-dimensional fragmentation of color strings along the beam direction to an at least two-dimensional hadronization geometry along the beam and azimuth directions of a hadron-opaque bulk medium.

Published
2006

2. Pion, kaon, proton and anti-proton transverse momentum distributions from p+p and d+Au collisions at sNN=200 GeV

Author

J. Adams, M.M. Aggarwal, Z. Ahammed, J. Amonett, B.D. Anderson, D. Arkhipkin, G.S. Averichev, S.K. Badyal, Y. Bai, J. Balewski, O. Barannikova, L.S. Barnby, J. Baudot, S. Bekele, V.V. Belaga, R. Bellwied, J. Berger, B.I. Bezverkhny, S. Bharadwaj, A. Bhasin, A.K. Bhati, V.S. Bhatia, H. Bichsel, J. Bielcik, J. Bielcikova, A. Billmeier, L.C. Bland, C.O. Blyth, B.E. Bonner, M. Botje, A. Boucham, A.V. Brandin, A. Bravar, M. Bystersky, R.V. Cadman, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, J. Castillo, O. Catu, D. Cebra, Z. Chajecki, P. Chaloupka, S. Chattopadhyay, H.F. Chen, Y. Chen, J. Cheng, M. Cherney, A. Chikanian, W. Christie, J.P. Coffin, T.M. Cormier, J.G. Cramer, H.J. Crawford, D. Das, S. Das, M.M. de Moura, A.A. Derevschikov, L. Didenko, T. Dietel, S.M. Dogra, W.J. Dong, X. Dong, J.E. Draper, F. Du, A.K. Dubey, V.B. Dunin, J.C. Dunlop, M.R. Dutta Mazumdar, V. Eckardt, W.R. Edwards, L.G. Efimov, V. Emelianov, J. Engelage, G. Eppley, B. Erazmus, M. Estienne, P. Fachini, J. Faivre, R. Fatemi, J. Fedorisin, K. Filimonov, P. Filip, E. Finch, V. Fine, Y. Fisyak, K. Fomenko, J. Fu, C.A. Gagliardi, L. Gaillard, J. Gans, M.S. Ganti, L. Gaudichet, F. Geurts, V. Ghazikhanian, P. Ghosh, J.E. Gonzalez, O. Grachov, O. Grebenyuk, D. Grosnick, S.M. Guertin, Y. Guo, A. Gupta, T.D. Gutierrez, T.J. Hallman, A. Hamed, D. Hardtke, J.W. Harris, M. Heinz, T.W. Henry, S. Hepplemann, B. Hippolyte, A. Hirsch, E. Hjort, G.W. Hoffmann, H.Z. Huang, S.L. Huang, E.W. Hughes, T.J. Humanic, G. Igo, A. Ishihara, P. Jacobs, W.W. Jacobs, M. Janik, H. Jiang, P.G. Jones, E.G. Judd, S. Kabana, K. Kang, M. Kaplan, D. Keane, V.Yu. Khodyrev, J. Kiryluk, A. Kisiel, E.M. Kislov, J. Klay, S.R. Klein, D.D. Koetke, T. Kollegger, M. Kopytine, L. Kotchenda, M. Kramer, P. Kravtsov, V.I. Kravtsov, K. Krueger, C. Kuhn, A.I. Kulikov, A. Kumar, R.Kh. Kutuev, A.A. Kuznetsov, M.A.C. Lamont, J.M. Landgraf, S. Lange, F. Laue, J. Lauret, A. Lebedev, R. Lednicky, S. Lehocka, M.J. LeVine, C. Li, Q. Li, Y. Li, G. Lin, S.J. Lindenbaum, M.A. Lisa, F. Liu, L. Liu, Q.J. Liu, Z. Liu, T. Ljubicic, W.J. Llope, H. Long, R.S. Longacre, M. Lopez-Noriega, W.A. Love, Y. Lu, T. Ludlam, D. Lynn, G.L. Ma, J.G. Ma, Y.G. Ma, D. Magestro, S. Mahajan, D.P. Mahapatra, R. Majka, L.K. Mangotra, R. Manweiler, S. Margetis, C. Markert, L. Martin, J.N. Marx, H.S. Matis, Yu.A. Matulenko, C.J. McClain, T.S. McShane, F. Meissner, Yu. Melnick, A. Meschanin, M.L. Miller, N.G. Minaev, C. Mironov, A. Mischke, D.K. Mishra, J. Mitchell, B. Mohanty, L. Molnar, C.F. Moore, D.A. Morozov, M.G. Munhoz, B.K. Nandi, S.K. Nayak, T.K. Nayak, J.M. Nelson, P.K. Netrakanti, V.A. Nikitin, L.V. Nogach, S.B. Nurushev, G. Odyniec, A. Ogawa, V. Okorokov, M. Oldenburg, D. Olson, S.K. Pal, Y. Panebratsev, S.Y. Panitkin, A.I. Pavlinov, T. Pawlak, T. Peitzmann, V. Perevoztchikov, C. Perkins, W. Peryt, V.A. Petrov, S.C. Phatak, R. Picha, M. Planinic, J. Pluta, N. Porile, J. Porter, A.M. Poskanzer, M. Potekhin, E. Potrebenikova, B.V.K.S. Potukuchi, D. Prindle, C. Pruneau, J. Putschke, G. Rakness, R. Raniwala, S. Raniwala, O. Ravel, R.L. Ray, S.V. Razin, D. Reichhold, J.G. Reid, G. Renault, F. Retiere, A. Ridiger, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, A. Rose, C. Roy, L. Ruan, R. Sahoo, I. Sakrejda, S. Salur, J. Sandweiss, M. Sarsour, I. Savin, P.S. Sazhin, J. Schambach, R.P. Scharenberg, N. Schmitz, K. Schweda, J. Seger, P. Seyboth, E. Shahaliev, M. Shao, W. Shao, M. Sharma, W.Q. Shen, K.E. Shestermanov, S.S. Shimanskiy, E. Sichtermann, F. Simon, R.N. Singaraju, G. Skoro, N. Smirnov, R. Snellings, G. Sood, P. Sorensen, J. Sowinski, J. Speltz, H.M. Spinka, B. Srivastava, A. Stadnik, T.D.S. Stanislaus, R. Stock, A. Stolpovsky, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, E. Sugarbaker, C. Suire, M. Sumbera, B. Surrow, T.J.M. Symons, A. Szanto de Toledo, P. Szarwas, A. Tai, J. Takahashi, A.H. Tang, T. Tarnowsky, D. Thein, J.H. Thomas, S. Timoshenko, M. Tokarev, T.A. Trainor, S. Trentalange, R.E. Tribble, O.D. Tsai, J. Ulery, T. Ullrich, D.G. Underwood, A. Urkinbaev, G. Van Buren, M. van Leeuwen, A.M. Vander Molen, R. Varma, I.M. Vasilevski, A.N. Vasiliev, R. Vernet, S.E. Vigdor, Y.P. Viyogi, S. Vokal, S.A. Voloshin, M. Vznuzdaev, W.T. Waggoner, F. Wang, G. Wang, X.L. Wang, Y. Wang, Z.M. Wang, H. Ward, J.W. Watson, J.C. Webb, R. Wells, G.D. Westfall, A. Wetzler, C. Whitten, H. Wieman, S.W. Wissink, R. Witt, J. Wood, J. Wu, N. Xu, Z. Xu, Z.Z. Xu, E. Yamamoto, P. Yepes, V.I. Yurevich, Y.V. Zanevsky, H. Zhang, W.M. Zhang, Z.P. Zhang, R. Zoulkarneev, Y. Zoulkarneeva, and A.N. Zubarev

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Proton, 010308 nuclear & particles physics, Hadron, 7. Clean energy, 01 natural sciences, Particle identification, Baryon, Nuclear physics, Pion, Antiproton, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Bar (unit)
Abstract

Identified mid-rapidity particle spectra of pi(+/-), K+/-, and p((p) over bar) from 200 GeV p + p and d + Au collisions are reported. A time-of-flight detector based on multi-gap resistive plate chamber technology is used for particle identification. The particle-species dependence of the Cronin effect is observed to be significantly smaller than that at lower energies. The ratio of the nuclear modification factor (R-dAu) between protons (p + (p) over bar) and charged hadrons (h) in the transverse momentum range 1.2 < p(T) < 3.0 GeV/c is measured to be 1.19 +/- 0.05(stat) +/- 0.03(syst) in minimum-bias collisions and shows little centrality dependence. The yield ratio of (p + (p) over bar)/h in minimum-bias d + Au collisions is found to be a factor of 2 lower than that in Au + Au collisions, indicating that the Cronin effect alone is not enough to account for the relative baryon enhancement observed in heavy ion collisions at RHIC. (c) 2005 Elsevier B.V. All rights reserved.

Published
2005

3. ϕ meson production in Au+Au and p+p collisions at sNN=200GeV

Author

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

Subjects
Physics, Coalescence (physics), Nuclear and High Energy Physics, Meson production, 010308 nuclear & particles physics, Phi meson, 7. Clean energy, 01 natural sciences, Central region, Spectral line, Nuclear physics, 0103 physical sciences, Transverse momentum, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract

We report the STAR measurement of ϕ meson production in Au + Au and p + p collisions at s N N = 200 GeV . Using the event mixing technique, the ϕ spectra and yields are obtained at mid-rapidity for five centrality bins in Au + Au collisions and for non-singly-diffractive p + p collisions. It is found that the ϕ transverse momentum distributions from Au + Au collisions are better fitted with a single-exponential while the p + p spectrum is better described by a double-exponential distribution. The measured nuclear modification factors indicate that ϕ production in central Au + Au collisions is suppressed relative to peripheral collisions when scaled by the number of binary collisions ( 〈 N bin 〉 ) . The systematics of 〈 p t 〉 versus centrality and the constant ϕ / K − ratio versus beam species, centrality, and collision energy rule out kaon coalescence as the dominant mechanism for ϕ production.

Published
2005

4. Strange antiparticle-to-particle ratios at mid-rapidity in =130 GeV Au+Au collisions

Author

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

Subjects
Quark, Physics, Nuclear and High Energy Physics, Strange quark, Antiparticle, Particle physics, STAR, Hyperon, Strangeness, Baryochemical potential, Nuclear physics, Baryon, Relativistic heavy-ion collisions, Antibaryon-to-baryon ratios, Rapidity, Nucleon
Abstract

Values of the ratios in the mid-rapidity yields of Λ / Λ =0.71±0.01( stat. )±0.04( sys. ) , Ξ + / Ξ − =0.83±0.04( stat. )±0.05( sys. ) , Ω + / Ω − =0.95±0.15( stat. )±0.05( sys. ) and K + /K − =1.092±0.023(combined) were obtained in central s NN =130 GeV Au+Au collisions using the STAR detector. The ratios indicate that a fraction of the net-baryon number from the initial system is present in the excess of hyperons over antihyperons at mid-rapidity. The trend in the progression of the baryon ratios, with increasing strange quark content, is similar to that observed in heavy-ion collisions at lower energies. The value of these ratios may be related to the charged kaon ratio in the framework of simple quark-counting and thermal models.

Published
2003

Catalog

Books, media, physical & digital resources
See catalog results