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33 results on '"V.N. Penev"'

1. Investigation of the deuteron spin structure at short nucleon-nucleon distances in the reaction of polarized-deuteron fragmentation to cumulative pions

Author

V. P. Ladygin, V. I. Ivanov, V. F. Peresedov, P. A. Rukoyatkin, A. Yu. Isupov, A. G. Litvinenko, Yu. K. Pilipenko, Alexander Malakhov, L. S. Zolin, A. N. Khrenov, L. S. Azhgirey, L. B. Golovanov, V.N. Penev, Yu. T. Borzounov, S. V. Afanasiev, and S. G. Reznikov

Subjects
Physics, Nuclear and High Energy Physics, Angular momentum, Particle physics, Meson, Nuclear Theory, Atomic and Molecular Physics, and Optics, Momentum, Baryon, Nuclear physics, Pion, Atomic nucleus, Nuclear Experiment, Nucleon, Wave function
Abstract

Experimental results on the vector (A y ) and tensor (A yy ) analyzing powers in the fragmentation of 5- and 9-GeV/c polarized deuterons to high-momentum pions in the kinematical region corresponding to pion production on a strongly correlated nucleon pair (cumulative meson production) are presented. The angular and momentum dependences of A yy are not described by calculations performed in the impulse approximation by using standard deuteron wave functions. An explanation for our data should be sought on the basis of models that treat the deuteron at short distances (deuteron-core region) as a multiquark state—for example, a 6q cluster, whose high orbital angular momentum (D wave) leads to the observed strong dependence of the reaction tensor analyzing power A( $\vec d$ , π)X on the pion transverse momentum.

Published
2011
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2. Fragmentation of polarized deuteron into high momentum mesons as source of spin information of deuteron core structure

Author

K. Kondo, V.N. Penev, Yu. K. Pilipenko, A. Wakai, Di. Kirillov, A. Isupov, N. Horikawa, A. G. Litvinenko, Shuji Fukui, A. N. Khrenov, V. K. Bondarev, S. G. Reznikov, I. Daito, S. V. Afanasiev, V. V. Arkhipov, T. Iwata, V. P. Ladygin, Alexander Malakhov, L. S. Zolin, P. A. Rukoyatkin, and N. Doushita

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, Particle physics, Meson, Nuclear Theory, Hadron, Nuclear structure, Elementary particle, Nuclear physics, Pion, Deuterium, Nuclear Experiment, Boson
Abstract

A study of spin effects at fragmentation of 9 GeV polarized deuterons into high momentum pions d A → π (θ) X was for the first time performed at Dubna polarized deuteron facility. Large D -state effects were observed at fragmentation of tensor polarized deuterons into cumulative pions at non-zero emission angles.

Published
2003
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3. Transverse-energy distributions at midrapidity inp+p,d+Au, andAu+Aucollisions atsNN=62.4–200 GeV and implications for particle-production models

Author

J. M. Burward-Hoy, R. A. Soltz, V. Bumazhnov, M. P. Comets, P. Rosnet, Vladislav Manko, Y. J. Kwon, Saskia Mioduszewski, W. C. Smith, Robert F. Hobbs, L. Sanfratello, W. C. Chang, Ferenc Deák, N. Kamihara, M. K. Lee, Yves Roland Schutz, F. Matathias, R. Armendariz, X. Camard, M. N. Hagiwara, Debashish Pal, S. Sawada, S. Butsyk, C. Vale, Vladimir Samsonov, A. Drees, I. Otterlund, J. Jin, A. Franz, A. Devismes, E. M. Takagui, T. L. Thomas, Taku Gunji, B. D. Fox, F. Kajihara, B. Espagnon, K. Das, E. P. Hartouni, R. S. Towell, H. Delagrange, C. H. Kuberg, Tamas Ferenc Csorgo, Akio Kiyomichi, O. Zaudtke, J. Chiba, H. W. Van Hecke, J. L. Nagle, V. S. Pantuev, N. Kurihara, S. Zhou, M. A. Volkov, M. Harvey, Y. S. Kim, M. Wysocki, B. Khachaturov, T. Matsumoto, M. G. Hur, C. Y. Chi, Y. Cobigo, M. Grosse Perdekamp, Ryugo S. Hayano, K. Hasuko, C. A. Ogilvie, M. Chiu, Ajit Kumar Mohanty, Kensuke Homma, T. A. Shibata, A. Deshpande, J. L. Drachenberg, K. Okada, T. K. Hemmick, N. N. Ajitanand, H. Kobayashi, A. Pierson, S. Bathe, Agneta Oskarsson, I. Ravinovich, G. C. Mishra, Y. Nagata, S. Chernichenko, H. En'yo, P. Constantin, Yasuo Miake, M. J. Leitch, H. Lim, Marie Germain, T. Ichihara, S. C. Johnson, B. Bassalleck, Y. Berdnikov, D. Isenhower, Joakim Nystrand, Takao Sakaguchi, S. S. Ryu, N. Grau, S. F. Pate, Eva Haslum, C. P. Singh, Y. Akiba, C. Klein-Boesing, Osamu Jinnouchi, H. Pei, M. Konno, German Martinez, Y. Riabov, Kenta Shigaki, David Olle Rickard Silvermyr, K. Shoji, S. Nagamiya, Kazuhiro Tanaka, B. M. Johnson, Takahiro Nakamura, A. D. Frawley, L. Kochenda, F. K. Wohn, Matthew G. Reuter, Klaus Johannes Reygers, B. Azmoun, M. J. Kweon, R. Bennett, A. Isupov, C. Suire, X. R. Wang, S. Afanasiev, M. Nguyen, D. Winter, D. Yu Peressounko, A. Ster, P. W. Stankus, Ahmed Al-Jamel, S. H. Aronson, T. Kawagishi, T. E. Miller, A. G. Litvinenko, J. E. Frantz, J. Sziklai, R. Santo, A. Enokizono, A. S. Nyanin, A. Kiss, G. Roche, Y. Le Bornec, S. P. Sorensen, W. Holzmann, Herve Borel, Brian Cole, M. Holmes, P. Tarján, Sean A. Kelly, Henner Buesching, A. Glenn, A. Taketani, R. Kohara, I. D. Ojha, Alexander Malakhov, V. L. Rykov, T. Dahms, Viktor Veszpremi, V. Papavassiliou, Maya Hachiya Shimomura, P. Chand, Y. I. Makdisi, J. Egdemir, T. Shohjoh, Y. Watanabe, A. Durum, C. R. Cleven, A. Dion, B. Forestier, M. T. Bjorndal, J. G. Boissevain, I. Younus, Masashi Kaneta, E. Kim, S. P. Stoll, A. Kozlov, L. S. Zolin, K. S. Sim, T. Tabaru, P. J. Kroon, R. Seto, K. Haruna, A. Taranenko, M. J. Tannenbaum, D. S. Brown, Senta Greene, W. J. Park, S. Belikov, K. S. Joo, V. V. Ikonnikov, Junji Tojo, S. S.E. Rosendahl, B. Sahlmueller, G. Bunce, A. Soldatov, B. E. Norman, E. O'Brien, K. Katou, P. D. Barnes, Steven E. Skutnik, D. Mukhopadhyay, V. Dzhordzhadze, D. Bucher, H. J. Kim, H. Qu, A. Yanovich, C. L. Woody, M. Inuzuka, Hideki Hamagaki, K. Aoki, D. E. Fields, G. David, X. He, O. O. Omiwade, B. V. Jacak, C. Pinkenburg, M. Naglis, S. Y. Fung, H. Hiejima, D. Jouan, A. K. Purwar, V. Peresedov, C. L. Silva, John Hill, K. Oyama, M. Stepanov, S. Esumi, Toru Sugitate, L. D. Isenhower, D. Sharma, Masayasu Ishihara, Susumu Sato, H. Masui, A. K. Dubey, J. Gosset, J. P. Sullivan, S. Takagi, M. Muniruzzaman, Martin Purschke, C. A. Aidala, F. Gastineau, K. N. Barish, I. V. Sourikova, H. Torii, François Fleuret, K. Imai, S. N. White, J. G. Lajoie, V. I. Kochetkov, J. Murata, T. J. Uam, D. Kotchetkov, M. L. Brooks, Gerd Joachim Kunde, W. E. Sondheim, I. Shein, S. Yokkaichi, J. M. Heuser, T. Hachiya, K. Boyle, P. A. Rukoyatkin, Alberto Baldisseri, Z. Fraenkel, Y. J. Mao, S. Kametani, Pàl Hidas, Anne Marie Sickles, Y. Tanaka, J. H. Kang, J. S. Haggerty, T. K. Shea, A. Romana, R. K. Choudhury, A. G. Hansen, Shingo Sakai, S. Gadrat, Nagahiro Saito, F. Staley, Charles Maguire, S. Leckey, G. R. Young, I. J. Choi, Josh Moss, Kiyoshi Tanida, E. Kistenev, Hiroaki Ohnishi, H. Harada, Y. Fukao, Jan Rak, R. Lacey, R. Granier de Cassagnac, V-N. Tram, J. M. Qualls, Motoi Inaba, M. Sarsour, Mate Csanad, David D'Enterria, R. P. Pisani, Xingguo Li, M. Gonin, Nikolay Tyurin, V.N. Penev, M. N. Wagner, K. Kurita, H. Pereira, Minghui Liu, M. Heffner, Kenneth Francis Read, Tadaaki Isobe, J. S. Chai, P. L. McGaughey, A. V. Kazantsev, Alexei Khanzadeev, N. Bruner, E. Stenlund, Jen-Chieh Peng, T. V. Moukhanova, E. J. Desmond, Dong Jo Kim, Jean-Pierre Cussonneau, M. Togawa, T. C. Awes, Kyoichiro Ozawa, J. Park, Florian Bauer, Jun Kikuchi, Y. Tsuchimoto, I. E. Yushmanov, Eun-Hee Kim, R. Vértesi, Ch. Finck, Jason Newby, Alexander Milov, O. Drapier, M. Rosati, M. Velkovsky, E. R. Kinney, D. P. Morrison, A. A. Vinogradov, Henrik Tydesjö, H. A. Gustafsson, S. Campbell, Jiangyong Jia, Y. Goto, V. E. Semenov, J. Zimányi, C. Zhang, Tatsuya Chujo, I. Tserruya, Yu. Efremenko, V. Singh, G. B. Kim, Viktor Riabov, B. Komkov, O. Dietzsch, H. Valle, S. Batsouli, Dipanwita Dutta, Julia Velkovska, M. A. L. Leite, Hirohiko Sato, S. K. Tuli, H. Iinuma, M. C. McCain, A. P.T. Palounek, V. Babintsev, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, Sergey Fokin, T. Horaguchi, A. Hoover, S. S. Adler, G. S. Kyle, N. Willis, James Alexander, M. Issah, M. D. Malik, E. Vznuzdaev, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Alexandre Lebedev, D. M. Lee, Xiaopeng Zong, L. Aphecetche, Takeo Kawabata, Johannes Peter Wessels, A. Hadj Henni, Wei Xie, and J. T. Mitchell

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Transverse plane, Deuterium, Production model, High Energy Physics::Experiment, Nuclear Experiment, 16. Peace & justice, Nucleon, Glauber, Ansatz
Abstract

Measurements of the midrapidity transverse-energy distribution, dE(T)/d eta, are presented for p + p, d+Au, and Au+Au collisions atv root s(NN) = 200 GeV and additionally for Au+Au collisions atv root s(NN) = 62.4 and 130 GeV. The dE(T)/d eta distributions are first compared with the number of nucleon participants N-part, number of binary collisions N-coll, and number of constituent-quark participants N-qp calculated from a Glauber model based on the nuclear geometry. For Au+Au, /N-part increases with N-part, while /N-qp is approximately constant for all three energies. This indicates that the two-component ansatz, dE(T)/d eta alpha (1 - x)N-part/2 + xN(coll), which was used to represent E-T distributions, is simply a proxy for N-qp, and that the N-coll term does not represent a hard-scattering component in E-T distributions. The dE(T)/d eta distributions of Au+Au and d+Au are then calculated from the measured p + p E-T distribution using two models that both reproduce the Au+Au data. However, while the number-of-constituent-quark-participant model agrees well with the d+Au data, the additive-quark model does not.

Published
2014
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4. Search for D-state effects in cumulative pion production off polarized deuterons

Author

A. Isupov, V. I. Kolesnikov, V. K. Bondarev, S. G. Reznikov, V. V. Arkhipov, V. A. Kashirin, Alexander Malakhov, L. S. Zolin, S. V. Afanasiev, A. G. Litvinenko, P. A. Rukoyatkin, V. P. Ladygin, A. N. Khrenov, V.N. Penev, Yu. K. Pilipenko, and A.S. Nikiforov

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Pion, Deuterium, Production (economics), State (functional analysis)
Published
2001
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5. Measurement of the tensor analyzing power Ayy in inclusive breakup of 9 GeV/c deuterons on carbon at large transverse momenta of protons

Author

S. G. Reznikov, V. V. Arkhipov, T. Matsuda, A. Yu. Isupov, Shuji Fukui, S. V. Afanasiev, A.D. Kirillov, P. A. Rukoyatkin, L.N. Strunov, I. I. Migulina, V.I. Sharov, V. N. Zhmyrov, Alexander Malakhov, E. V. Chernykh, V.N. Penev, T. Hasegawa, A. Wakai, L. S. Zolin, V. K. Bondarev, G.D. Stoletov, M. Kawano, V. P. Ershov, N. Takabayashi, Naoaki Horikawa, H. Nakayama, Yu. K. Pilipenko, I. A. Semenova, A. G. Litvinenko, L. S. Azhgirey, S. Hasegawa, V. A. Kashirin, V. I. Kolesnikov, M. Ehara, G. Filipov, S.A. Zaporozhets, A.A. Nomofilov, E. Osada, A. N. Khrenov, Takahiro Iwata, N.P. Yudin, A.S. Nikiforov, T. Kageya, V. P. Ladygin, V. V. Fimushkin, and A. Yu. Semenov

Subjects
Physics, Nuclear and High Energy Physics, Proton, Nuclear Theory, chemistry.chemical_element, Breakup, Power (physics), Nuclear physics, Momentum, Transverse plane, Deuterium, chemistry, Tensor, Nuclear Experiment, Carbon, Nuclear Physics
Abstract

The tensor analyzing power A yy in inclusive breakup of 9 GeV/c deuterons on carbon has been measured at the detected proton angle of 85 mr. The analyzing power remains positive at the highest measured momentum of the proton in definite contradiction with the predictions of the existing models. The vector analyzing power A y has been obtained simultaneously with A yy .

Published
1998
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6. Direct photon production ind+Au collisions atsNN=200GeV

Author

A. Devismes, Y. Onuki, Taku Gunji, H. Gong, J. Seele, Alexander Milov, I. Nakagawa, Jan Rak, T. Engelmore, F. Kajihara, S. V. Afanasiev, L. Aphecetche, Takeo Kawabata, H. Pei, M. C. McCain, R. Lacey, Aaron Angerami, Tadaaki Isobe, O. Drapier, S. S. Adler, G. S. Kyle, H. Delagrange, Frank Ellinghaus, N. Willis, R. Granier de Cassagnac, A. Adare, E. R. Kinney, D. P. Morrison, James Alexander, S. Campbell, W. A. Zajc, Hongfang Liu, D. E. Fields, A. Dion, M. Slunečka, R. Averbeck, P. L. McGaughey, Byung-Sik Hong, V. Baublis, S. Zhou, A. Denisov, V. E. Semenov, J. Zimányi, B. V. Jacak, A. Bazilevsky, V. Cianciolo, Johannes Peter Wessels, Hiroaki Ohnishi, K. B. Lee, H. J. Kim, Y. Fukao, S. D. Rolnick, T. Murakami, Y. Tomita, Philippe Rosnet, Sergey Fokin, C. Silvestre, M. McCumber, A. K. Purwar, Robert F. Hobbs, J. M. Qualls, T. Hester, Alexandre Lebedev, R. Vértesi, A. Hoover, A. Hadj Henni, Dmitry Blau, Ch. Finck, Jason Newby, J. Murata, I. Tserruya, Yu. Efremenko, D. M. Lee, Xiaopeng Zong, E. J. Desmond, Masamichi Ishihara, B. Khachaturov, Beomkyu Kim, Jean-Pierre Cussonneau, M. Togawa, J. Hanks, E. Vazquez-Zambrano, D. Roach, S. Belikov, K. S. Joo, Florian Bauer, K. Watanabe, V. Singh, K. Shoji, A. Rakotozafindrabe, P. Tarján, Marisilvia Donadelli, K. M. Kijima, V. Bumazhnov, M. P. Comets, G. B. Kim, Sean A. Kelly, Minghui Liu, Wei Xie, V. S. Pantuev, M. Kasai, T. Matsumoto, K. Kiriluk, M. Chiu, Ajit Kumar Mohanty, Y. Tsuchimoto, Y. Iwanaga, Maya Hachiya Shimomura, I. E. Yushmanov, Eun-Hee Kim, M. Ouchida, Alexei Khanzadeev, Viktor Veszpremi, T. A. Shibata, C. L. Silva, T. Sato, N. Bruner, N. Means, E. Stenlund, Sung Keun Park, J. B. Choi, M. Heffner, P. W. Stankus, Kenneth Francis Read, S. Sawada, J. Ying, A. Franz, K. Hasuko, B. D. Fox, S. Tarafdar, K. S. Sim, J. Hamblen, A. Yu. Semenov, J. Asai, J. H. Bhom, H. A. Gustafsson, T. Ichihara, N. Apadula, R. Tanabe, D. Layton, N. N. Ajitanand, T. V. Moukhanova, Margaret Harvey, V-N. Tram, N. Grau, O. Dietzsch, B. Komkov, E. T. Atomssa, Y. I. Makdisi, Xingguo Li, Junji Tojo, Y. Kwon, J. Gosset, H. Valle, D. Isenhower, A. Toia, L. Mašek, A. G. Hansen, Shingo Sakai, Hirohiko Sato, Takahiro Nakamura, A. V. Kazantsev, Y. Tanaka, E. Mannel, T. K. Shea, J. P. Sullivan, R. Yang, H. Hiejima, Dipanwita Dutta, B. Espagnon, Joakim Nystrand, Eunja Kim, Eva Haslum, B. Lenzi, K. A. Drees, C. Zhang, German Martinez, Motoi Inaba, P. Ružička, Senta Greene, S. Taneja, K. Okada, Jen-Chieh Peng, W. C. Chang, D. McGlinchey, M. I. Nagy, Julia Velkovska, R. M. Wright, L. Tomášek, M. Rosati, M. Velkovsky, S. P. Sorensen, H. En'yo, D. Watanabe, Susumu Oda, A. T. Basye, M. D. Malik, C. L. Woody, A. Berdnikov, J. L. Charvet, Viktor Riabov, K. Imai, P. Constantin, M. J. Leitch, E. Vznuzdaev, H. Qu, H. J. Moon, F. Staley, L. Baksay, O. Chvala, M. Nihashi, A. Durum, B. Fadem, E. O'Brien, Gary Grim, M. J. Tannenbaum, Rushan Han, S. Esumi, S. Batsouli, K. V. Dharmawardane, A. Caringi, T. E. Miller, K. Karatsu, Inkyu Park, M. Inuzuka, R. A. Soltz, D. S. Brown, K. Yamaura, Z. Conesa del Valle, Hideki Hamagaki, K. Aoki, Seong H. Kim, Charles Maguire, S. Leckey, Takafumi Niida, Anne Marie Sickles, A. A. Vinogradov, Henrik Tydesjö, T. C. Awes, Kyoichiro Ozawa, T. Liška, R. Santo, Jiangyong Jia, Y. Goto, A. Ster, A. Enokizono, J. S. Bok, Jun Kikuchi, J. G. Lajoie, T. Hachiya, David D'Enterria, G. David, M. Grosse Perdekamp, V. V. Ikonnikov, K. I. Hahn, P. Chung, Dong Jo Kim, M. E. Connors, A. Pierson, J. M. Burward-Hoy, Josh Moss, Kiyoshi Tanida, M. K. Dayananda, M. Wysocki, D. Sharma, J. Imrek, D. Kleinjan, R. P. Pisani, D. Mukhopadhyay, R. Ichimiya, S. Rembeczki, S. Butsyk, Vladimir Samsonov, H. Iinuma, I. Otterlund, A. Veicht, A. Datta, E. Kistenev, I. J. Choi, A. Kravitz, J. M. Heuser, M. Gonin, Nikolay Tyurin, D. Bucher, I. V. Sourikova, H. Torii, T. L. Thomas, S. Yokkaichi, A. P.T. Palounek, C. H. Kuberg, G. R. Young, L. Sanfratello, David Olle Rickard Silvermyr, T. Jones, Peter Christiansen, K. Das, P. Lichtenwalner, D. Hornback, Tae-Yeon Lee, V.N. Penev, Martin Purschke, M. A. Volkov, J. Chiba, Alice Mignerey, Ryugo S. Hayano, L. D'Orazio, C. A. Aidala, D. Winter, D. Yu Peressounko, C. M. Camacho, E. P. Hartouni, A. Sukhanov, K. Kurita, H. Pereira, Prashant Shukla, G. C. Mishra, Y. Riabov, Kenta Shigaki, P. J. Kroon, Y. Ikeda, A. Taranenko, M. Nguyen, Kazushi Miki, Takao Sakaguchi, Tamas Ferenc Csorgo, T. Kempel, Dong-Hun Kim, J. G. Boissevain, S. F. Pate, Y. Morino, Masashi Kaneta, A. S. Nyanin, C. Klein-Boesing, Ke. Nakamura, Brajesh K. Singh, Rachid Nouicer, Norio Saito, M. Proissl, Tsutomu Mibe, J. L. Nagle, H. Al-Bataineh, X. R. Wang, K. Katou, A. D. Frawley, R. Pak, S. Huang, S. H. Aronson, C. Pinkenburg, V. Papavassiliou, W. Holzmann, Sébastien Gadrat, D. Kotchetkov, M. Stepanov, G. Roche, S. Kametani, T. Horaguchi, Pàl Hidas, J. H. Kang, J. S. Haggerty, A. Romana, A. Morreale, M. A. L. Leite, Z. Fraenkel, J. L. Drachenberg, Y. S. Lai, R. K. Choudhury, S. C. Johnson, B. Azmoun, Y. J. Mao, A. Král, M. J. Kweon, Y. Le Bornec, M. Oka, K. S. Lee, P. Liebing, C. A. Ogilvie, T. K. Hemmick, R. Belmont, J. S. Kapustinsky, J. M. Durham, V. Babintsev, A. Kiss, Henner Buesching, Steve Edwards, Yasuo Miake, P. Chand, Marcus Hohlmann, L. A. Linden Levy, P. Mikeš, X. Jiang, L. Kochenda, M. Issah, H. Kobayashi, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, K. Sakashita, Vaclav Vrba, Klaus Johannes Reygers, R. Kohara, Jason Kamin, M. Csanad, Rui Wei, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, J.-G. Park, A. Churyn, D. Jouan, Ferenc Deák, N. Kamihara, Aram Kim, R. Armendariz, C. Oakley, A. Drees, Xiao-yan Li, K. O. Eyser, K. Fujiwara, S. W. Nam, Y. L. Yamaguchi, I. Ravinovich, M. Bai, S. S. Ryu, Zhiying You, R. Bennett, H. W. Van Hecke, M. Kawashima, Ahmed Al-Jamel, M. Finger, S. Dairaku, O. Zaudtke, M. Virius, C. H. Chen, Y. Cobigo, J. E. Frantz, Jongmin Lee, Herve Borel, A. Glenn, A. Taketani, D. S. Jumper, V. L. Rykov, T. Dahms, X. He, Y. Aramaki, V. Peresedov, J. Koster, H. Masui, A. K. Dubey, A. A. Bickley, S. Takagi, S. Y. Fung, B. Meredith, K. N. Barish, S. Bathe, F. Matathias, Kensuke Homma, E. Richardson, John Hill, K. Oyama, S. Chernichenko, S. Sano, H. Lim, B. Bassalleck, Toru Sugitate, L. D. Isenhower, T. J. Uam, M. Konno, M. L. Brooks, B. Love, François Fleuret, Marie Germain, A. G. Litvinenko, J. T. Mitchell, Osamu Jinnouchi, F. K. Wohn, A. Kozlov, R. Seto, K. Haruna, Matthew G. Reuter, Takahiro Fusayasu, R. Seidl, Vladislav Manko, I. D. Ojha, Alexander Malakhov, V. Dzhordzhadze, I. Danchev, L. S. Zolin, W. J. Park, Christopher Rosen, P. D. Barnes, A. Yanovich, S. N. White, Deepa Thomas, T. Chujo, Zvi Hirsh Citron, K. Nakano, W. E. Sondheim, D. Ivanischev, K. Boyle, P. A. Rukoyatkin, X. Camard, C. Vale, B. S. Chang, J. Klay, Y. Nakamiya, D. Lynch, G. Baksay, M. T. Bjorndal, B. Sahlmueller, Y. J. Kim, A. Deshpande, Y. Watanabe, I. Younus, A. Soldatov, D. Kawall, H. Themann, V. I. Kochetkov, Gerd Joachim Kunde, I. Shein, M. Kurosawa, Saskia Mioduszewski, K. Sedgwick, Alberto Baldisseri, Yves Roland Schutz, D. Pal, J. Jin, M. Naglis, E. M. Takagui, C. Baumann, C. P. Singh, B. M. Johnson, R. J. Petti, A. Isupov, C. Suire, J. Sziklai, Brian Cole, R. S. Towell, Susumu Sato, M. Muniruzzaman, I. Garishvili, Akio Kiyomichi, F. Wei, and C. Y. Chi

Subjects
Physics, Nuclear and High Energy Physics, Photon, 010308 nuclear & particles physics, Virtual particle, 01 natural sciences, 7. Clean energy, Photon yield, Nuclear physics, 0103 physical sciences, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract

Direct photons have been measured in root s(NN) = 200 GeV d + Au collisions at midrapidity. A wide p(T) range is covered by measurements of nearly real virtual photons (1 < p(T) < 6 GeV/c) and real photons (5 < p(T) < 16 GeV/c). The invariant yield of the direct photons in d + Au collisions over the scaled p + p cross section is consistent with unity. Theoretical calculations assuming standard cold-nuclear-matter effects describe the data well for the entire p(T) range. This indicates that the large enhancement of direct photons observed in Au + Au collisions for 1.0 < p(T) < 2.5 GeV/c is attributable to a source other than the initial-state nuclear effects.

Published
2013
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7. An experimental run on the new superconducting accelerator Nuclotron at 3.8 and 6.2 GeV/c deuteron momemtum

Author

G. L. Melkumov, P. K. Maniakov, E.A. Matyushevsky, I. I. Migulina, A. N. Khrenov, V. V. Arkhipov, V. K. Bondarev, S. G. Reznikov, I. Rufanov, V. A. Kashirin, V.V. Avdeichikov, I. Atanasov, Yu.S. Anisimov, V. A. Krasnov, A. G. Litvinenko, P.I. Zarubin, V. A. Kuznetsov, S.V. Zadorozhny, A.I. Berlev, A. Yu. Isupov, A.M. Baldin, A.S. Nikiforov, Petr Nomokonov, A. Yu. Semenov, S. V. Afanasiev, A.S. Artyomov, Kh.U. Abraamyan, V. I. Kolesnikov, V.A. Smirnov, Alexander Kovalenko, V.N. Penev, V. A. Nikitin, Alexander Malakhov, and A.I. Maevskaia

Subjects
Physics, Nuclear and High Energy Physics, Nuclotron, Particle physics, Meson, Physics::Instrumentation and Detectors, Hadron, Superconducting magnet, Particle identification, Nuclear physics, Helium-3, Scintillation counter, Nuclear Experiment, Nucleon
Abstract

The new superconducting accelerator Nuclotron have been operated for the first time at 3.8 and 6.2 GeV/c deuteron momentum and the run on the internal target have been carried out in March'94. The various scintillation counters for ΔE-E and time-of-flight (TOF) measurements, the silicon and CsI(Tl) crystal detectors for ΔE-E measurements as well, and the lead glass EM calorimeters were used. The secondary particles γ, π, K, p, d, and t as well as He fragments produced by deuterons on the internal targets were detected and identified relaibly, thus manifestating a broad perspective of the relativistic nuclear physics research on Nuclotron in the nearest future.

Published
1995
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8. Charged hadron multiplicity fluctuations inAu+AuandCu+Cucollisions fromsNN=22.5to 200 GeV

Author

Yu. Efremenko, Martin Purschke, F. Gastineau, V. Singh, G. B. Kim, D. Kotchetkov, Mate Csanad, J. G. Boissevain, A. Morreale, B. Khachaturov, Z. Fraenkel, Alexei Khanzadeev, Masashi Kaneta, T. Matsumoto, N. Bruner, E. Stenlund, N. N. Ajitanand, David D'Enterria, Hirohiko Sato, H. Sakata, K. Katou, K. Hasuko, S. K. Tuli, R. K. Choudhury, S. S. Adler, G. S. Kyle, C. Pinkenburg, P. Tarján, Sean A. Kelly, N. Willis, R. P. Pisani, James Alexander, Tadaaki Isobe, L. Tomášek, Takahiro Nakamura, V. S. Pantuev, Hiroyuki Okada, A. Hadj Henni, R. Averbeck, J. S. Chai, Susumu Oda, Byung-Sik Hong, A. Bazilevsky, Viktor Veszpremi, Nikolay Tyurin, K. S. Sim, M. Stepanov, G. Roche, Y. J. Mao, S. Kametani, M. Harvey, Pàl Hidas, Saskia Mioduszewski, Joakim Nystrand, Eva Haslum, B. Lenzi, M. N. Wagner, J. H. Kang, Junji Tojo, Y. Watanabe, J. M. Burward-Hoy, J. S. Haggerty, T. Shohjoh, A. Durum, W. C. Smith, L. Sanfratello, K. Boyle, Wei Xie, T. V. Moukhanova, Philippe Rosnet, M. K. Lee, K. Ozawa, K. Okada, S. Belikov, K. S. Joo, P. L. McGaughey, B. Sahlmueller, H. En'yo, P. Constantin, A. Romana, Alexandre Lebedev, M. J. Leitch, Yves Roland Schutz, O. Dietzsch, K. O. Eyser, K. Fujiwara, J. L. Drachenberg, H. Hiejima, D. S. Brown, J. E. Frantz, H. Valle, C. H. Kuberg, C. Silvestre, D. M. Lee, D. Kawall, K. Dehmelt, Xiaopeng Zong, Jen-Chieh Peng, S. Afanasiev, A. Ster, J. Chiba, J. Jin, Dipanwita Dutta, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Andry Malala Rakotozafindrabe, E. M. Takagui, K. Tanida, V. I. Kochetkov, R. Pak, R. S. Towell, Y. S. Lai, Herve Borel, D. Lynch, A. Shevel, G. C. Mishra, D. E. Fields, B. D. Fox, Robert F. Hobbs, Ferenc Deák, K. Imai, Julia Velkovska, I. Garishvili, Akio Kiyomichi, Y. L. Yamaguchi, D. Sharma, B. Komkov, R. Vértesi, B. V. Jacak, J. Murata, N. Kamihara, R. Armendariz, T. Hester, Takao Sakaguchi, Kazuyoshi Kurita, Senta Greene, N. Kurihara, J. Gosset, M. Rosati, Charles Maguire, H. W. Van Hecke, J. P. Sullivan, A. Glenn, Dong Jo Kim, S. Leckey, C. Klein-Boesing, Minghui Liu, M. Velkovsky, S. Batsouli, Norio Saito, Anne Marie Sickles, S. P. Sorensen, D. Hornback, F. Matathias, M. McCumber, A. K. Purwar, A. D. Frawley, M. Heffner, C. R. Cleven, C. Haegemann, Y. Inoue, Dylan Walker, A. Drees, Gerd Joachim Kunde, J. Kubart, S. C. Johnson, M. G. Hur, C. Y. Chi, B. Azmoun, A. Král, Youngil Kwon, W. C. Chang, Kensuke Homma, I. Shein, M. A. L. Leite, M. J. Kweon, T. Tabaru, Ch. Finck, V. L. Rykov, T. Dahms, Kenneth Francis Read, Jason Newby, A. Taranenko, R. Kohara, J. Egdemir, P. J. Kroon, B. E. Norman, Y. Le Bornec, Osamu Jinnouchi, Josh Moss, E. O'Brien, Dong-Hun Kim, A. A. Vinogradov, Henrik Tydesjö, Jason Kamin, M. C. McCain, V-N. Tram, S. H. Aronson, A. Kiss, I. Ravinovich, M. Oka, V. Babintsev, J. G. Lajoie, T. Hachiya, R. A. Soltz, L. Aphecetche, Motoi Inaba, Takeo Kawabata, S. P. Stoll, Jiangyong Jia, Y. Goto, Y. Nagata, S. S.E. Rosendahl, Debashish Pal, G. Bunce, S. Sawada, G. R. Young, W. Holzmann, Z. Yasin, Henner Buesching, C. L. Woody, P. Chand, Marcus Hohlmann, Rushan Han, M. N. Hagiwara, S. Butsyk, Vladimir Samsonov, A. P.T. Palounek, C. P. Singh, B. M. Johnson, S. Esumi, A. Churyn, I. Otterlund, M. Grosse Perdekamp, Maya Hachiya Shimomura, Y. I. Makdisi, Kazushi Miki, A. Dion, E. J. Desmond, Jean-Pierre Cussonneau, M. Togawa, S. N. White, Atsushi Taketani, A. Enokizono, E. H. Kim, I. J. Choi, A. Kravitz, D. Jouan, S. Chernichenko, H. Lim, B. Bassalleck, N. Grau, K. Shoji, J. Park, Johannes Peter Wessels, Florian Bauer, M. A. Volkov, W. A. Zajc, E. Kistenev, S. S. Ryu, M. Konno, P. W. Stankus, K. Das, E. P. Hartouni, J. Ying, A. Franz, Hiroaki Ohnishi, A. Pierson, M. Ouchida, Alberto Baldisseri, A. Isupov, C. Suire, V. Baublis, A. Denisov, V. Cianciolo, H. Kobayashi, S. Bathe, Y. Tsuchimoto, M. Issah, J. M. Qualls, H. Harada, J. Asai, Sergey Fokin, C. A. Ogilvie, M. J. Tannenbaum, R. Bennett, K. Nakano, Agneta Oskarsson, T. K. Hemmick, M. D. Malik, E. Vznuzdaev, Xiao-yan Li, Jan Rak, Yasuo Miake, J. Sziklai, I. E. Yushmanov, H. Pei, T. Horaguchi, A. Hoover, Steven E. Skutnik, V. V. Ikonnikov, Y. Berdnikov, Y. Akiba, R. Lacey, M. Mishra, S. Nagamiya, Brian Cole, J. T. Mitchell, Kazuhiro Tanaka, L. Kochenda, D. Mukhopadhyay, Ahmed Al-Jamel, David Olle Rickard Silvermyr, W. E. Sondheim, M. Finger, S. Rembeczki, R. Granier de Cassagnac, Vaclav Vrba, Klaus Johannes Reygers, B. Espagnon, A. Adare, A. G. Hansen, Shingo Sakai, D. Bucher, M. Naglis, D. Winter, H. A. Gustafsson, D. Yu Peressounko, T. Kawagishi, C. L. Silva, O. Zaudtke, Tamas Ferenc Csorgo, T. L. Thomas, H. Qu, C. Zhang, R. Seidl, Xingguo Li, M. Gonin, Alexander Milov, I. Nakagawa, Vladislav Manko, V.N. Penev, P. A. Rukoyatkin, O. Drapier, Frank Ellinghaus, H. J. Kim, M. Virius, Viktor Riabov, M. Inuzuka, Hideki Hamagaki, K. Aoki, G. David, H. Pereira, Ryugo S. Hayano, M. Slunečka, S. Y. Fung, J. L. Nagle, Masayasu Ishihara, E. R. Kinney, D. P. Morrison, Y. Riabov, S. Campbell, Kenta Shigaki, Susumu Sato, V. E. Semenov, J. Zimányi, M. Nguyen, Tatsuya Chujo, M. Muniruzzaman, A. S. Nyanin, A. Deshpande, X. Camard, John Hill, K. Oyama, Y. Cobigo, C. Vale, B. S. Chang, Toru Sugitate, M. B. Deaton, L. D. Isenhower, M. Mitrovski, Christine Angela Aidala, J. Klay, I. Younus, Y. Nakamiya, Y. Tanaka, T. K. Shea, M. Wysocki, A. Soldatov, François Fleuret, B. Forestier, G. Baksay, I. V. Sourikova, H. Torii, T. Ichihara, M. T. Bjorndal, S. F. Pate, F. K. Wohn, Matthew G. Reuter, H. Al-Bataineh, X. R. Wang, F. Staley, L. Baksay, Takahiro Fusayasu, I. D. Ojha, Alexander Malakhov, V. Papavassiliou, Sébastien Gadrat, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, A. V. Kazantsev, P. Mikeš, Yoichiro Fukao, T. C. Awes, T. Liška, Jun Kikuchi, S. Yokkaichi, J. M. Heuser, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, D. Isenhower, A. Toia, L. Mašek, German Martinez, H. Kanou, A. Devismes, Taku Gunji, H. Gong, J. Seele, F. Kajihara, H. Delagrange, S. Zhou, Y. S. Kim, J. L. Charvet, T. E. Miller, E. T. Atomssa, R. Santo, P. Chung, M. Holmes, W. S. Emam, X. He, O. O. Omiwade, V. Peresedov, H. Masui, A. K. Dubey, A. A. Bickley, B. Love, Marie Germain, A. G. Litvinenko, A. Kozlov, R. Seto, K. Haruna, V. Dzhordzhadze, S. Takagi, K. N. Barish, T. J. Uam, M. L. Brooks, Tae-Yeon Lee, and I. Tserruya

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Hadron, Collision, 01 natural sciences, Bin, Ion, Nuclear physics, Superposition principle, Strange matter, 0103 physical sciences, Cluster (physics), Multiplicity (chemistry), Nuclear Experiment, 010306 general physics
Abstract

A comprehensive survey of event-by-event fluctuations of charged hadron multiplicity in relativistic heavy ions is presented. The survey covers Au+Au collisions at s(NN) =62.4 and 200 GeV, and Cu+Cu collisions at s(NN) =22.5,62.4, and 200 GeV. Fluctuations are measured as a function of collision centrality, transverse momentum range, and charge sign. After correcting for nondynamical fluctuations due to fluctuations in the collision geometry within a centrality bin, the remaining dynamical fluctuations expressed as the variance normalized by the mean tend to decrease with increasing centrality. The dynamical fluctuations are consistent with or below the expectation from a superposition of participant nucleon-nucleon collisions based upon p+p data, indicating that this dataset does not exhibit evidence of critical behavior in terms of the compressibility of the system. A comparison of the data with a model where hadrons are independently emitted from a number of hadron clusters suggests that the mean number of hadrons per cluster is small in heavy ion collisions.

Published
2008
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9. Cold nuclear matter effects onJ/ψproduction as constrained by deuteron-gold measurements atsNN=200GeV

Author

V. I. Kochetkov, B. Khachaturov, S. C. Johnson, T. Matsumoto, J. Murata, B. Azmoun, A. Král, M. J. Kweon, K. Hasuko, M. Gonin, A. Shevel, Gerd Joachim Kunde, T. L. Thomas, V.N. Penev, T. Hester, Hiroyuki Okada, Y. Le Bornec, S. Esumi, Joakim Nystrand, Eva Haslum, B. Lenzi, M. Oka, I. Shein, R. A. Soltz, H. Borel, J. E. Frantz, C. H. Kuberg, J. Chiba, J. Gosset, J. P. Sullivan, H. Pereira, A. Dion, Ryugo S. Hayano, M. Grosse Perdekamp, J. M. Burward-Hoy, J. L. Charvet, Tae-Yeon Lee, Martin Purschke, W. A. Zajc, D. Kotchetkov, V-N. Tram, G. C. Mishra, A. Morreale, Z. Fraenkel, Atsushi Taketani, A. Enokizono, Y. Riabov, R. K. Choudhury, Kenta Shigaki, D. Lynch, M. Nguyen, A. Pierson, V. Baublis, K. S. Joo, A. Deshpande, L. Sanfratello, M. B. Deaton, A. Denisov, S. Afanasiev, A. Ster, E. H. Kim, A. S. Nyanin, M. K. Lee, K. Ozawa, T. E. Miller, E. T. Atomssa, Hiroaki Ohnishi, V. Cianciolo, Motoi Inaba, A. Glenn, D. Sharma, Takao Sakaguchi, C. Klein-Boesing, Minghui Liu, B. D. Fox, R. Santo, David Olle Rickard Silvermyr, Sergey Fokin, L. Tomášek, Mate Csanad, V. S. Pantuev, J. M. Qualls, P. Chung, A. D. Frawley, S. Butsyk, X. He, M. Harvey, O. O. Omiwade, Kenneth Francis Read, Y. Tanaka, Vladimir Samsonov, T. Horaguchi, I. Otterlund, Junji Tojo, T. Tabaru, A. Hoover, V. L. Rykov, T. Dahms, S. Yokkaichi, Youngil Kwon, I. Younus, J. M. Heuser, D. Winter, K. Okada, V. Peresedov, E. J. Desmond, D. Yu Peressounko, T. K. Shea, W. S. Emam, Jean-Pierre Cussonneau, B. Sahlmueller, H. En'yo, David D'Enterria, S. H. Aronson, S. Batsouli, P. Constantin, M. J. Leitch, R. S. Towell, H. Kanou, A. Devismes, Taku Gunji, H. Gong, J. Seele, D. Kawall, I. Ravinovich, M. Togawa, L. Aphecetche, Takeo Kawabata, M. C. McCain, J. Park, A. Soldatov, Y. J. Mao, P. Tarján, Sean A. Kelly, R. P. Pisani, F. Kajihara, A. V. Kazantsev, S. Kametani, W. Holzmann, Florian Bauer, D. Hornback, I. Garishvili, Akio Kiyomichi, Nikolay Tyurin, Viktor Veszpremi, Y. Nagata, H. Delagrange, H. Masui, A. K. Dubey, Xingguo Li, D. E. Fields, M. N. Wagner, Pàl Hidas, Anne Marie Sickles, M. Heffner, P. Mikeš, M. Naglis, A. A. Bickley, J. H. Kang, S. Takagi, J. S. Haggerty, C. L. Silva, J. L. Drachenberg, Y. Tsuchimoto, A. Romana, Maya Hachiya Shimomura, A. P.T. Palounek, S. Zhou, S. S. Ryu, N. Kurihara, A. Taranenko, Yoichiro Fukao, Tamas Ferenc Csorgo, K. N. Barish, I. V. Sourikova, H. Torii, B. V. Jacak, A. Baldisseri, I. E. Yushmanov, S. P. Sorensen, Y. I. Makdisi, Dylan Walker, T. C. Awes, T. Liška, Kazushi Miki, Masayasu Ishihara, Susumu Sato, Jun Kikuchi, Senta Greene, Tadaaki Isobe, L. Baksay, M. Muniruzzaman, Alexei Khanzadeev, N. Bruner, E. Stenlund, J. L. Nagle, H. Sakata, H. A. Gustafsson, M. Ouchida, M. Chiu, Ajit Kumar Mohanty, T. J. Uam, C. Y. Chi, F. Staley, T. A. Shibata, G. R. Young, Johannes Peter Wessels, M. J. Tannenbaum, B. E. Norman, R. Bennett, E. O'Brien, C. Zhang, J. Asai, J. G. Lajoie, Charles Maguire, S. Leckey, T. Hachiya, M. L. Brooks, M. McCumber, A. K. Purwar, Xiao-yan Li, V. V. Ikonnikov, Y. S. Lai, Ahmed Al-Jamel, M. Finger, A. G. Hansen, B. Love, Shingo Sakai, I. J. Choi, A. Kravitz, Marie Germain, D. Mukhopadhyay, S. Rembeczki, T. V. Moukhanova, D. Isenhower, Viktor Riabov, Saskia Mioduszewski, O. Zaudtke, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Josh Moss, A. G. Litvinenko, A. Toia, L. Mašek, R. Vértesi, German Martinez, D. Bucher, J. G. Boissevain, Masashi Kaneta, Andry Malala Rakotozafindrabe, M. Virius, A. Kozlov, R. Seto, K. Katou, E. Kistenev, K. Haruna, Yves Roland Schutz, Ch. Finck, Jason Newby, K. S. Sim, C. Pinkenburg, Y. L. Yamaguchi, V. Dzhordzhadze, Y. Watanabe, J. Jin, W. C. Chang, H. Harada, E. M. Takagui, Y. Cobigo, M. Stepanov, G. Roche, H. Pei, Roy A. Lacey, M. Issah, B. Komkov, C. P. Singh, N. N. Ajitanand, Rushan Han, B. M. Johnson, Takahiro Nakamura, A. Isupov, C. Suire, H. J. Kim, J. Sziklai, Susumu Oda, Brian Cole, A. Durum, M. D. Malik, H. Hiejima, E. Vznuzdaev, Catherine Micaela Silvestre, D. S. Brown, K. Imai, Norio Saito, M. A. L. Leite, A. Hadj Henni, K. Boyle, Jan Rak, Wei Xie, R. Granier de Cassagnac, A. Adare, V. Babintsev, S. S. Adler, G. S. Kyle, N. Willis, James Alexander, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, Xiaopeng Zong, M. Mitrovski, R. Pak, Ferenc Deák, N. Kamihara, M. Wysocki, R. Armendariz, Kazuyoshi Kurita, Robert F. Hobbs, A. Drees, J. Kubart, M. A. Volkov, Debashish Pal, S. Sawada, J. Ying, A. Franz, C. A. Ogilvie, B. Espagnon, T. K. Hemmick, Yasuo Miake, S. F. Pate, L. Kochenda, H. Al-Bataineh, X. R. Wang, C. R. Cleven, C. Haegemann, Y. Inoue, R. Kohara, J. Egdemir, V. Papavassiliou, Jason Kamin, Sébastien Gadrat, S. P. Stoll, P. J. Kroon, A. Kiss, S. S.E. Rosendahl, Dong-Hun Kim, G. Bunce, Z. Yasin, Henner Buesching, C. L. Woody, A. Churyn, D. Jouan, P. Chand, Marcus Hohlmann, Steven E. Skutnik, H. Kobayashi, S. Bathe, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, Vaclav Vrba, Klaus Johannes Reygers, K. O. Eyser, K. Fujiwara, H. W. Van Hecke, H. Qu, M. Inuzuka, Hideki Hamagaki, K. Aoki, G. David, I. Tserruya, Yu. Efremenko, V. Singh, G. B. Kim, Hirohiko Sato, K. Dehmelt, Jen-Chieh Peng, N. Grau, K. Shoji, Dong Jo Kim, Osamu Jinnouchi, Alexander Milov, I. Nakagawa, P. W. Stankus, O. Drapier, Frank Ellinghaus, E. R. Kinney, D. P. Morrison, S. Campbell, V. E. Semenov, J. Zimányi, Tatsuya Chujo, O. Dietzsch, H. Valle, K. Das, E. P. Hartouni, Dipanwita Dutta, T. Ichihara, Julia Velkovska, F. K. Wohn, M. Rosati, Y. Nakamiya, M. Velkovsky, Matthew G. Reuter, Takahiro Fusayasu, G. Baksay, I. D. Ojha, M. T. Bjorndal, A. A. Vinogradov, Henrik Tydesjö, Alexander Malakhov, Jiangyong Jia, Y. Goto, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, S. N. White, F. Matathias, Kensuke Homma, K. Nakano, W. E. Sondheim, S. Chernichenko, H. Lim, P. A. Rukoyatkin, S. Y. Fung, B. Bassalleck, John Hill, K. Oyama, Toru Sugitate, L. D. Isenhower, M. Konno, P. L. McGaughey, François Fleuret, J. T. Mitchell, R. Seidl, Vladislav Manko, M. Slunečka, S. Belikov, X. Camard, C. Vale, B. S. Chang, Christine Angela Aidala, J. Klay, and K. Tanida

Subjects
Nuclear reaction, Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Nuclear Theory, Quarkonium, Nuclear matter, Breakup, 7. Clean energy, 01 natural sciences, Baryon, Nuclear physics, 0103 physical sciences, Rapidity, Nuclear Experiment, 010306 general physics, Nucleon
Abstract

We present a new analysis of J/psi production yields in deuteron-gold collisions at root s(NN) =200 GeV using data taken from the PHENIX experiment in 2003 and previously published in S. S. Adler [Phys. Rev. Lett 96, 012304 (2006)]. The high statistics proton-proton J/psi data taken in 2005 are used to improve the baseline measurement and thus construct updated cold nuclear matter modification factors (R-dAu). A suppression of J/psi in cold nuclear matter is observed as one goes forward in rapidity (in the deuteron-going direction), corresponding to a region more sensitive to initial-state low-x gluons in the gold nucleus. The measured nuclear modification factors are compared to theoretical calculations of nuclear shadowing to which a J/psi (or precursor) breakup cross section is added. Breakup cross sections of sigma(breakup)=2.8(-1.4)(+1.7) (2.2(-1.5)(+1.6)) mb are obtained by fitting these calculations to the data using two different models of nuclear shadowing. These breakup cross-section values are consistent within large uncertainties with the 4.2 +/- 0.5 mb determined at lower collision energies. Projecting this range of cold nuclear matter effects to copper-copper and gold-gold collisions reveals that the current constraints are not sufficient to firmly quantify the additional hot nuclear matter effect.

Published
2008
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10. Centrality dependence of charged hadron production in deuteron+gold and nucleon+gold collisions atsNN=200GeV

Author

D. E. Fields, T. E. Miller, B. V. Jacak, R. Santo, Jen-Chieh Peng, A. K. Purwar, B. D. Fox, P. Tarján, E. J. Desmond, Dong Jo Kim, Sean A. Kelly, M. Germain, Osamu Jinnouchi, S. C. Johnson, Viktor Veszpremi, S. Butsyk, Vladimir Samsonov, Jean-Pierre Cussonneau, I. Tserruya, M. Togawa, J. Park, Yu. Efremenko, S. Y. Fung, Florian Bauer, M. J. Kweon, G. B. Kim, J. Gosset, B. Khachaturov, J. P. Sullivan, T. Matsumoto, M. Chiu, Ajit Kumar Mohanty, K. Hasuko, Evert Stenlund, T. A. Shibata, J. L. Drachenberg, Senta Greene, Joakim Nystrand, S. F. Pate, K. Das, M. T. Bjorndal, John Hill, K. Oyama, E. P. Hartouni, S. Afanasiev, A. Ster, Y. Tanaka, T. K. Shea, Y. Le Bornec, M. Heffner, A. Taranenko, E. O'Brien, Toru Sugitate, Y. Tsuchimoto, Ferenc Deák, L. D. Isenhower, J. M. Burward-Hoy, M. Rosati, E. H. Kim, Jan Rak, Tamas Ferenc Csorgo, R. Granier de Cassagnac, D. Mukhopadhyay, D. Isenhower, German Martinez, T. L. Thomas, Y. Cobigo, N. Kamihara, N. N. Ajitanand, Hirohiko Sato, Maya Hachiya Shimomura, J. E. Frantz, S. Yokkaichi, I. E. Yushmanov, F. Matathias, R. Armendariz, Takahiro Nakamura, J. M. Heuser, H. Masui, F. Staley, M. Velkovsky, Charles Maguire, S. Leckey, V. Papavassiliou, Sébastien Gadrat, François Fleuret, Y. J. Kwon, Robert F. Hobbs, Y. J. Mao, A. Durum, Herve Borel, Motoi Inaba, A. Glenn, V. L. Rykov, Kensuke Homma, M. Inuzuka, Hideki Hamagaki, K. Aoki, X. He, G. David, S. Chernichenko, Ryugo S. Hayano, L. Sanfratello, Y. I. Makdisi, A. Devismes, F. Kajihara, H. Delagrange, J. L. Nagle, S. Kametani, Pàl Hidas, J. S. Haggerty, A. Romana, A. A. Vinogradov, Henrik Tydesjö, Y. Riabov, S. N. White, Kenta Shigaki, A. Kiss, Josh Moss, E. Kistenev, J. Velkovska, S. S. Adler, G. S. Kyle, Viktor Riabov, N. Willis, M. Grosse Perdekamp, A. Pierson, Henner Buesching, Mate Csanad, Anne Marie Sickles, James Alexander, S. Sawada, Zvi Hirsh Citron, I. Ravinovich, J. H. Kang, J. G. Lajoie, T. Hachiya, H. Lim, B. Bassalleck, A. Franz, S. Zhou, Jiangyong Jia, S. Batsouli, Ingvar Otterlund, A. Drees, Alexei Khanzadeev, Y. Goto, N. Bruner, R. Averbeck, D. S. Brown, A. G. Litvinenko, Byung-Sik Hong, S. S. Ryu, M. A. Volkov, A. Bazilevsky, I. J. Choi, W. Xie, W. E. Sondheim, P. Chand, M. Konno, David D'Enterria, Philippe Rosnet, P. L. McGaughey, B. Espagnon, A. Kozlov, Anders Oskarsson, Hiroaki Ohnishi, R. Seto, R. P. Pisani, Atsushi Taketani, M. J. Tannenbaum, H. Okada, D. M. Lee, C. Zhang, Xiaopeng Zong, H. Pei, V. Bumazhnov, M. P. Comets, V. S. Pantuev, B. A. Cole, T. Ichihara, Nikolay Tyurin, Ahmed Al-Jamel, G. R. Young, J. T. Mitchell, N. Grau, J. G. Boissevain, L. Aphecetche, F. K. Wohn, J. M. Qualls, Matthew G. Reuter, V. Dzhordzhadze, S. Takagi, A. V. Kazantsev, M. Harvey, B. Komkov, V. V. Ikonnikov, K. Katou, A. S. Nyanin, H. Kobayashi, Hans-Åke Gustafsson, S. Belikov, K. S. Joo, K. N. Barish, C. A. Ogilvie, C. Pinkenburg, I. D. Ojha, Junji Tojo, S. Bathe, Alexander Malakhov, H. J. Kim, Norio Saito, M. A. L. Leite, T. K. Hemmick, Vladislav Manko, Takeo Kawabata, M. C. McCain, A. P.T. Palounek, L. S. Zolin, M. Stepanov, W. J. Park, G. Roche, K. Okada, Y. Akiba, Yasuo Miake, V. N. Tram, D. Bucher, H. En'yo, M. Kaneta, O. Dietzsch, T. J. Uam, P. D. Barnes, A. Yanovich, P. Constantin, V. Babintsev, S. Nagamiya, Kazuhiro Tanaka, M. J. Leitch, Yoichiro Fukao, S. Esumi, P. W. Stankus, R. A. Soltz, Klaus Johannes Reygers, M. L. Brooks, Dipanwita Dutta, C. H. Kuberg, T. C. Awes, Kyoichiro Ozawa, J. Chiba, V. Peresedov, Jun Kikuchi, L. Kochenda, T. Chujo, S. Sorensen, W. A. Zajc, V. Baublis, Minghui Liu, G. C. Mishra, Ch. Finck, Jason Newby, X. Camard, Kenneth Francis Read, Xingguo Li, Takao Sakaguchi, Martin Purschke, A. Denisov, V. Cianciolo, W. C. Chang, R. Kohara, C. Klein-Boesing, Sergey Fokin, D. Kotchetkov, M. Gonin, A. D. Frawley, T. Horaguchi, H. W. Vanhecke, Christine Angela Aidala, Z. Fraenkel, S. H. Aronson, S. P. Stoll, R. K. Choudhury, C. L. Woody, V.N. Penev, A. Hoover, W. Holzmann, S. S.E. Rosendahl, G. Bunce, Roy A. Lacey, A. Lebedev, S. Sakai, K. Kurita, D. Jouan, H. Pereira, P. J. Kroon, I. V. Sourikova, H. Torii, A. G. Hansen, M. Issah, E. Vznuzdaev, X. R. Wang, Alexander Milov, O. Drapier, E. R. Kinney, D. P. Morrison, V. E. Semenov, J. Zimányi, A. Deshpande, K. Tanida, V. I. Kochetkov, D. Silvermyr, Gerd Joachim Kunde, I. Shein, Alberto Baldisseri, Y. Watanabe, A. Soldatov, C. L. Silva, Masayasu Ishihara, Susumu Sato, M. Muniruzzaman, Saskia Mioduszewski, Yves Roland Schutz, D. Pal, E. M. Takagui, R. S. Towell, Akio Kiyomichi, C. Y. Chi, B. M. Johnson, A. Isupov, K. S. Sim, H. Hiejima, and K. Imai

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hadron, 01 natural sciences, 7. Clean energy, Spectral line, Charged particle, Nuclear physics, Pion, Deuterium, Yield (chemistry), 0103 physical sciences, Rapidity, Nuclear Experiment, 010306 general physics, Nucleon
Abstract

We present transverse momentum (p(T)) spectra of charged hadrons measured in deuteron-gold and nucleon-gold collisions at root s(NN)=200 GeV for four centrality classes. Nucleon-gold collisions were selected by tagging events in which a spectator nucleon was observed in one of two forward rapidity detectors. The spectra and yields were investigated as a function of the number of binary nucleon-nucleon collisions, nu, suffered by deuteron nucleons. A comparison of charged particle yields to those in p+p collisions show that yield per nucleon-nucleon collision saturates with nu for high momentum particles. We also present the charged hadron to neutral pion ratios as a function of p(T).

Published
2008
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11. System Size and Energy Dependence of Jet-Induced Hadron Pair Correlation Shapes inCu+CuandAu+AuCollisions atsNN=200and 62.4 GeV

Author

A. Shevel, H. Pei, Robert F. Hobbs, S. Belikov, K. S. Joo, I. V. Sourikova, H. Torii, Debashish Pal, P. Tarján, Sean A. Kelly, M. A. Volkov, S. Takagi, H. J. Kim, S. Sawada, J. Ying, A. Franz, M. Ouchida, L. Tomášek, J. Asai, K. O. Eyser, V. S. Pantuev, Viktor Veszpremi, I. Ravinovich, A. G. Hansen, Shingo Sakai, B. Espagnon, S. Y. Fung, M. Harvey, K. Fujiwara, K. N. Barish, R. S. Towell, I. Tserruya, T. L. Thomas, C. A. Ogilvie, Y. Nagata, Ryugo S. Hayano, Y. Riabov, T. K. Hemmick, D. Sharma, Kenta Shigaki, M. Nguyen, A. S. Nyanin, Yu. Efremenko, Maya Hachiya Shimomura, V. Singh, Yasuo Miake, I. Garishvili, Akio Kiyomichi, Junji Tojo, S. F. Pate, Tae-Yeon Lee, Martin Purschke, F. Gastineau, N. N. Ajitanand, Hiroaki Ohnishi, B. D. Fox, Mate Csanad, J. L. Charvet, S. S. Ryu, Y. I. Makdisi, Anne Marie Sickles, G. B. Kim, T. J. Uam, Senta Greene, K. Okada, H. Al-Bataineh, X. R. Wang, J. G. Boissevain, S. Esumi, M. B. Deaton, N. Kurihara, E. J. Desmond, L. Kochenda, Jean-Pierre Cussonneau, Masashi Kaneta, John Hill, K. Oyama, Steven E. Skutnik, D. Kotchetkov, M. L. Brooks, F. Matathias, M. Togawa, B. Sahlmueller, H. En'yo, J. M. Qualls, P. Constantin, M. J. Leitch, B. E. Norman, Takahiro Nakamura, E. H. Kim, K. Katou, Toru Sugitate, A. Morreale, M. J. Tannenbaum, B. Love, Kensuke Homma, T. Kawagishi, Marie Germain, E. O'Brien, Z. Fraenkel, M. Naglis, V. V. Ikonnikov, G. R. Young, V. Papavassiliou, C. L. Silva, T. E. Miller, D. Mukhopadhyay, Sébastien Gadrat, S. Rembeczki, David D'Enterria, R. K. Choudhury, A. G. Litvinenko, C. Silvestre, Hirohiko Sato, D. Bucher, J. Park, Florian Bauer, R. A. Soltz, Susumu Oda, O. Dietzsch, H. Valle, M. G. Hur, C. Y. Chi, Y. Tanaka, T. K. Shea, E. T. Atomssa, C. Pinkenburg, D. Y.-U. Peressounko, R. Pak, S. K. Tuli, T. Shohjoh, R. Santo, A. Durum, S. C. Johnson, S. Chernichenko, Masayasu Ishihara, B. Azmoun, A. Král, Dipanwita Dutta, M. J. Kweon, H. Lim, B. Bassalleck, Ferenc Deák, M. Grosse Perdekamp, N. Kamihara, Jan Rak, J. M. Burward-Hoy, M. Stepanov, G. Roche, R. Armendariz, A. Kozlov, R. Seto, K. Haruna, C. H. Kuberg, J. Chiba, G. C. Mishra, W. A. Zajc, Takao Sakaguchi, V. Baublis, A. Denisov, V. Cianciolo, Xiao-yan Li, R. Bennett, Xingguo Li, Ahmed Al-Jamel, M. Finger, Susumu Sato, C. Klein-Boesing, H. Qu, J. E. Frantz, M. Gonin, P. Chung, R. P. Pisani, Y. Tsuchimoto, L. Baksay, K. Das, M. Mitrovski, R. Granier de Cassagnac, A. Adare, V.N. Penev, M. Muniruzzaman, A. D. Frawley, F. Staley, T. Tabaru, Sergey Fokin, Y. L. Yamaguchi, B. Komkov, Herve Borel, D. Lynch, Y. Le Bornec, A. Deshpande, D. S. Brown, Julia Velkovska, M. Rosati, M. Konno, M. Oka, A. Pierson, Kazuyoshi Kurita, A. Drees, V. Dzhordzhadze, X. He, O. O. Omiwade, M. Velkovsky, E. P. Hartouni, J. Kubart, J. Gosset, J. P. Sullivan, W. C. Smith, L. Sanfratello, I. E. Yushmanov, Nikolay Tyurin, Alexander Milov, S. H. Aronson, I. Nakagawa, M. Wysocki, Norio Saito, M. A. L. Leite, H. Pereira, M. Inuzuka, Hideki Hamagaki, K. Aoki, A. Glenn, M. Holmes, W. S. Emam, G. David, C. P. Singh, T. Horaguchi, A. Hoover, M. K. Lee, K. Ozawa, J. T. Mitchell, B. M. Johnson, A. Dion, V. Peresedov, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Andry Malala Rakotozafindrabe, David Olle Rickard Silvermyr, Charles Maguire, S. Leckey, R. Kohara, W. Holzmann, O. Drapier, Frank Ellinghaus, M. N. Wagner, Atsushi Taketani, R. Seidl, A. Enokizono, D. E. Fields, Vladislav Manko, A. Kiss, V. Babintsev, J. Egdemir, A. A. Vinogradov, Henrik Tydesjö, D. Winter, Josh Moss, R. Vértesi, Jason Kamin, K. S. Sim, S. S. Adler, E. R. Kinney, D. P. Morrison, B. V. Jacak, V. L. Rykov, T. Dahms, J. L. Drachenberg, S. Campbell, G. S. Kyle, M. Chiu, Ajit Kumar Mohanty, N. Willis, A. Isupov, C. Suire, M. Slunečka, Z. Yasin, Henner Buesching, James Alexander, Y. Watanabe, R. Averbeck, S. P. Sorensen, Jiangyong Jia, Y. Goto, S. P. Stoll, S. Batsouli, T. A. Shibata, Y. Kwon, Byung-Sik Hong, A. Bazilevsky, I. Younus, H. Masui, A. K. Dubey, C. L. Woody, W. C. Chang, T. Hester, J. Sziklai, V. E. Semenov, H. Hiejima, J. Zimányi, Dylan Walker, Philippe Rosnet, Alexandre Lebedev, M. McCumber, A. K. Purwar, E. Kistenev, Tatsuya Chujo, C. R. Cleven, C. Haegemann, Y. Inoue, D. M. Lee, Xiaopeng Zong, K. Dehmelt, A. A. Bickley, A. Soldatov, D. Kawall, S. S.E. Rosendahl, G. Bunce, K. Tanida, Roy A. Lacey, Brian Cole, S. Yokkaichi, Rushan Han, M. N. Hagiwara, Jen-Chieh Peng, J. G. Lajoie, J. M. Heuser, T. Hachiya, K. Imai, V. I. Kochetkov, O. Zaudtke, X. Camard, P. Chand, Marcus Hohlmann, S. Butsyk, A. Churyn, P. J. Kroon, Dong-Hun Kim, I. J. Choi, A. Kravitz, M. Virius, J. Murata, Vladimir Samsonov, C. Vale, D. Jouan, Y. J. Mao, I. Otterlund, S. Kametani, Gerd Joachim Kunde, B. S. Chang, L. Aphecetche, H. Harada, Takeo Kawabata, I. Shein, H. W. Vanhecke, Christine Angela Aidala, Ch. Finck, Jason Newby, J. Klay, Pàl Hidas, Saskia Mioduszewski, V-N. Tram, D. Isenhower, J. H. Kang, A. Toia, Dong Jo Kim, L. Mašek, Osamu Jinnouchi, H. Kobayashi, J. S. Haggerty, Y. Nakamiya, M. C. McCain, N. Grau, Alberto Baldisseri, A. Romana, K. Shoji, S. Bathe, Agneta Oskarsson, Tamas Ferenc Csorgo, P. W. Stankus, Motoi Inaba, German Martinez, Johannes Peter Wessels, Y. Berdnikov, J. L. Nagle, Y. Akiba, G. Baksay, A. P.T. Palounek, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, Vaclav Vrba, Klaus Johannes Reygers, Y. Cobigo, Alexei Khanzadeev, Yves Roland Schutz, M. T. Bjorndal, Y. S. Lai, M. Issah, H. Kanou, A. Devismes, Taku Gunji, H. Gong, J. Seele, M. D. Malik, N. Bruner, E. Stenlund, E. Vznuzdaev, F. Kajihara, J. Jin, E. M. Takagui, H. Sakata, H. A. Gustafsson, H. Delagrange, A. Hadj Henni, C. Zhang, K. Boyle, Wei Xie, S. Zhou, Y. S. Kim, Viktor Riabov, T. V. Moukhanova, S. Afanasiev, A. Ster, D. Hornback, M. Heffner, A. Taranenko, Kazushi Miki, B. Khachaturov, T. Matsumoto, K. Hasuko, Hiroyuki Okada, Joakim Nystrand, Eva Haslum, B. Lenzi, Minghui Liu, Kenneth Francis Read, A. V. Kazantsev, P. Mikeš, Yoichiro Fukao, T. C. Awes, T. Liška, Jun Kikuchi, Tadaaki Isobe, J. S. Chai, P. L. McGaughey, L. D. Isenhower, François Fleuret, B. Forestier, T. Ichihara, F. K. Wohn, Matthew G. Reuter, Takahiro Fusayasu, I. D. Ojha, Alexander Malakhov, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, S. N. White, K. Nakano, W. E. Sondheim, and P. A. Rukoyatkin

Subjects
Shock wave, Physics, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, Jet (particle physics), Radiation, 01 natural sciences, Gluon, Azimuth, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Cherenkov radiation, Beam (structure)
Abstract

We present azimuthal angle correlations of intermediate transverse momentum (1-4 GeV/c) hadrons from dijets in Cu+Cu and Au+Au collisions at root s(NN)=62.4 and 200 GeV. The away-side dijet induced azimuthal correlation is broadened, non-Gaussian, and peaked away from Delta phi=pi in central and semicentral collisions in all the systems. The broadening and peak location are found to depend upon the number of participants in the collision, but not on the collision energy or beam nuclei. These results are consistent with sound or shock wave models, but pose challenges to Cherenkov gluon radiation models.

Published
2007
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12. Production of ω mesons at large transverse momenta inp+pandd+Au collisions atsNN=200GeV

Author

T. E. Miller, M. Rosati, R. Santo, B. Khachaturov, M. Velkovsky, Jan Rak, P. Tarján, Sean A. Kelly, D. Mukhopadhyay, Y. Cobigo, M. Inuzuka, Hideki Hamagaki, K. Aoki, G. David, S. N. White, J. E. Frantz, T. Matsumoto, I. Ravinovich, S. S. Ryu, B. D. Fox, Viktor Veszpremi, Ahmed Al-Jamel, A. Glenn, V. L. Rykov, R. Granier de Cassagnac, Bruno Espagnon, Kensuke Homma, K. Hasuko, V-N. Tram, S. C. Johnson, M. J. Kweon, A. A. Vinogradov, Henrik Tydesjö, C. H. Kuberg, S. Chernichenko, Jiangyong Jia, W. E. Sondheim, Saskia Mioduszewski, H. Lim, B. Bassalleck, V. Bumazhnov, S. S. Adler, Motoi Inaba, J. M. Burward-Hoy, D. E. Fields, B. V. Jacak, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, Hiroyuki Okada, Y. Watanabe, M. Konno, J. Chiba, Mate Csanad, Y. J. Kwon, D. Isenhower, G. S. Kyle, Joakim Nystrand, Senta Greene, Y. Goto, T. Ichihara, F. K. Wohn, Matthew G. Reuter, C. L. Woody, K. Das, E. P. Hartouni, L. Sanfratello, J. G. Boissevain, Masashi Kaneta, I. D. Ojha, S. F. Pate, W. C. Chang, James Alexander, G. C. Mishra, J. T. Mitchell, Yves Roland Schutz, A. K. Purwar, Atsushi Taketani, Alexander Malakhov, German Martinez, David D'Enterria, A. Devismes, E. O'Brien, Alexander Milov, Marie Germain, K. Katou, Takao Sakaguchi, P. J. Kroon, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, S. Afanasiev, A. Ster, M. Gross Perdekamp, Roy A. Lacey, S. Belikov, K. S. Joo, F. Kajihara, D. Pal, H. Delagrange, A. Soldatov, R. A. Soltz, H. Borel, K. Tanida, J. L. Drachenberg, C. Klein-Boesing, S. Butsyk, L. S. Zolin, Vladislav Manko, Vladimir Samsonov, X. R. Wang, C. Pinkenburg, Alexandre Lebedev, G. Roche, R. P. Pisani, S. Esumi, W. J. Park, E. M. Takagui, Nikolay Tyurin, V. I. Kochetkov, A. G. Litvinenko, M. Issah, Anne Marie Sickles, H. Kobayashi, S. Bathe, D. M. Lee, O. Drapier, P. D. Barnes, A. Yanovich, M. Stepanov, S. Zhou, A. Baldisseri, Xiaopeng Zong, A. Pierson, A. D. Frawley, T. Chujo, V. Papavassiliou, Tamas Ferenc Csorgo, Y. J. Mao, V. S. Pantuev, S. Kametani, B. M. Johnson, E. Vznuzdaev, S. Y. Fung, N. Grau, S. P. Sorensen, A. Kozlov, R. Seto, Pàl Hidas, J. L. Nagle, X. Camard, E. R. Kinney, M. Heffner, M. Harvey, N. N. Ajitanand, Gerd Joachim Kunde, J. H. Kang, David Olle Rickard Silvermyr, S. H. Aronson, A. Isupov, E. H. Kim, J. S. Haggerty, D. P. Morrison, A. Taranenko, Robert F. Hobbs, Martin Purschke, A. Romana, Ferenc Deák, N. Kamihara, Junji Tojo, John Hill, K. Oyama, O. Dietzsch, I. Shein, W. A. Zajc, M. P. Comets, H. W. Vanhecke, G. R. Young, Christine Angela Aidala, L. Aphecetche, S. Gadrat, Takeo Kawabata, M. C. McCain, V. Dzhordzhadze, S. Takagi, W. Holzmann, Brian Cole, Toru Sugitate, L. D. Isenhower, R. S. Towell, D. Kotchetkov, P. W. Stankus, K. Okada, Takahiro Nakamura, Dipanwita Dutta, Y. Tanaka, V. Baublis, A. Denisov, K. N. Barish, V. Cianciolo, Maya Hachiya Shimomura, F. Matathias, R. Armendariz, Akio Kiyomichi, V. E. Semenov, Anders Nils Erik Oskarsson, S. Sawada, Z. Fraenkel, H. En'yo, P. Constantin, M. J. Leitch, Y. Akiba, Y. I. Makdisi, T. K. Shea, R. K. Choudhury, J. Zimányi, A. Franz, François Fleuret, I. V. Sourikova, Sergey Fokin, M. T. Bjorndal, J. Gosset, Wei Xie, A. Durum, J. P. Sullivan, A. Deshpande, T. J. Uam, H. Torii, B. Komkov, A. Drees, K. S. Sim, C. Y. Chi, Hans-Åke Gustafsson, C. L. Silva, T. Horaguchi, A. Hoover, M. J. Tannenbaum, S. Nagamiya, Kazuhiro Tanaka, D. S. Brown, Norio Saito, M. L. Brooks, M. A. L. Leite, H. Hiejima, X. He, J. G. Lajoie, V. V. Ikonnikov, Jen-Chieh Peng, R. Kohara, Masayasu Ishihara, S. Yokkaichi, J. M. Heuser, Susumu Sato, T. Hachiya, V. Peresedov, Y. Le Bornec, Klaus Johannes Reygers, D. Bucher, V. Babintsev, K. Imai, M. Muniruzzaman, C. Zhang, H. Masui, Ingvar Otterlund, S. P. Stoll, Evert Anders Stenlund, F. Staley, Viktor Riabov, I. J. Choi, S. S.E. Rosendahl, G. Bunce, A. G. Hansen, Shingo Sakai, A. Kiss, S. Batsouli, H. Pei, Henner Buesching, T. L. Thomas, D. Jouan, M. Gonin, M. A. Volkov, Ryugo S. Hayano, P. Chand, Y. Riabov, V.N. Penev, A. P.T. Palounek, Kenta Shigaki, Dong Jo Kim, C. A. Ogilvie, T. K. Hemmick, A. S. Nyanin, Yasuo Miake, P. Rosnet, Osamu Jinnouchi, L. Kochenda, K. Kurita, H. J. Kim, H. Pereira, I. Tserruya, Yu. Efremenko, G. B. Kim, Hirohiko Sato, J. Velkovska, Charles Maguire, S. Leckey, Hiroaki Ohnishi, Josh Moss, J. M. Qualls, E. Kistenev, N. Willis, Xingguo Li, Alexei Khanzadeev, N. Bruner, Minghui Liu, Kenneth Francis Read, P. L. McGaughey, Ch. Finck, Jason Newby, A. V. Kazantsev, E. J. Desmond, Jean-Pierre Cussonneau, Yoichiro Fukao, M. Togawa, J. Park, Florian Bauer, T. C. Awes, Kyoichiro Ozawa, Jun Kikuchi, Y. Tsuchimoto, and I. E. Yushmanov

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Energy loss, Meson, 010308 nuclear & particles physics, Modification factor, Omega baryon, 01 natural sciences, Omega, Nuclear physics, Transverse plane, Minimum bias, 0103 physical sciences, Transverse momentum, 010306 general physics
Abstract

The PHENIX experiment at RHIC has measured the invariant cross section for omega-meson production at mid-rapidity in the transverse momentum range 2.5 pi^0 pi^+ pi^- and omega --> pi^0 gamma) yield consistent results, and the reconstructed omega mass agrees with the accepted value within the p_T range of the measurements. The omega/pi^0 ratio is found to be 0.85 +/- 0.05(stat) +/- 0.09(sys) and 0.94 +/- 0.08(stat) +/- 0.12(sys) in p+p and d+Au collisions respectively, independent of p_T . The nuclear modification factor R_dA is 1.03 +/- 0.12(stat) +/- 0.21(sys) and 0.83 +/- 0.21(stat) +/- 0.17(sys) in minimum bias and central (0-20%) d+Au collisions, respectively.

Published
2007
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13. High transverse momentum η meson production inp+p,d+Au, and Au+Au collisions atsNN=200GeV

Author

D. E. Fields, B. V. Jacak, A. K. Purwar, N. N. Ajitanand, Takahiro Nakamura, M. E. Sadler, A. Durum, D. S. Brown, M. Rosati, Alexander Milov, S. S. Adler, G. S. Kyle, H. Tsuruoka, Y. Yang, C. P. Singh, Mate Csanad, J. Gosset, B. D. Fox, J. P. Sullivan, N. Willis, James Alexander, T. L. Thomas, M. Velkovsky, R. A. Soltz, H. Borel, R. Kohara, Jan Rak, W. Guryn, Y. Jeong, R. Averbeck, Byung-Sik Hong, B. M. Johnson, T. E. Miller, Alexei Khanzadeev, A. Bazilevsky, O. Drapier, S. Butsyk, Philippe Rosnet, C. H. Kuberg, M. Grosse Perdekamp, J. Chiba, R. Santo, David D'Enterria, C. L. Silva, S. P. Stoll, Hiroaki Ohnishi, J. Milan, N. Bruner, E. Stenlund, Vladimir Samsonov, L. Sanfratello, A. A. Vinogradov, Henrik Tydesjö, N. Grau, Alexandre Lebedev, D. M. Lee, A. Isupov, Xiaopeng Zong, R. P. Pisani, S. Afanasiev, M. Sakai, Ryugo S. Hayano, Robert F. Hobbs, A. Enokizono, E. R. Kinney, D. P. Morrison, V. E. Semenov, S. Borenstein, J. Zimányi, A. Pierson, Masayasu Ishihara, J. S. Chai, K. Ozawa, Nikolay Tyurin, S. Yokkaichi, I. Otterlund, B. Komkov, P. L. McGaughey, K. A. Drees, Youngil Kwon, Yuri Efremenko, J. M. Burward-Hoy, J. M. Heuser, Y. Riabov, Susumu Sato, M. Issah, Jiangyong Jia, Y. Goto, J. M. Qualls, M. Muniruzzaman, S. S.E. Rosendahl, G. Bunce, A. Ster, Kenta Shigaki, Norio Saito, Shih-Chang Lee, M. Kaufman, A. Devismes, M. A. L. Leite, Brian Cole, F. Staley, E. Vznuzdaev, Y. J. Mao, S. Kametani, S. Batsouli, S. Sawada, Paul Stankus, J. D. Tepe, K. Tanida, Y. Tanaka, Jen-Chieh Peng, K. S. Sim, T. K. Shea, Y. Watanabe, A. Franz, F. Kajihara, V. S. Pantuev, Tamas Ferenc Csorgo, G. C. Mishra, V-N. Tram, V. I. Kochetkov, A. S. Nyanin, Pàl Hidas, J. H. Kang, M. Harvey, S. S. Kapoor, J. S. Haggerty, David Olle Rickard Silvermyr, H. Delagrange, T. Shiina, D. Jouan, A. Romana, Yi Liu, B. Espagnon, Junji Tojo, M. A. Volkov, A. V. Kazantsev, R. Durietz, Motoi Inaba, J. L. Nagle, F. Messer, Gerd Joachim Kunde, V. Babintsev, H. Hiejima, S. F. Pate, L. Aphecetche, M. Kopytine, S. Zhou, Takeo Kawabata, I. Shein, M. C. McCain, K. Okada, M. Heffner, A. Taranenko, E. H. Kim, B. Sahlmueller, H. En'yo, T. Peitzmann, P. Constantin, A. Baldisseri, C. A. Ogilvie, J. B. Choi, M. Inuzuka, Soren Pontoppidan Sorensen, Hideki Hamagaki, K. Aoki, X. R. Wang, M. J. Leitch, Takao Sakaguchi, G. Gogiberidze, Saskia Mioduszewski, K. Imai, P. Tarján, Sean A. Kelly, T. K. Hemmick, Viktor Veszpremi, G. David, T. Kohama, H. Pei, Yasuo Miake, V. Papavassiliou, O. Dietzsch, Yoichiro Fukao, K. Das, M. Chiu, Ajit Kumar Mohanty, C. Klein-Boesing, Dong Jo Kim, T. A. Shibata, Sébastien Gadrat, J. G. Boissevain, Masashi Kaneta, B. Khachaturov, T. Matsumoto, K. Katou, K. Hasuko, L. Kochenda, K. Kiyoyama, E. P. Hartouni, Dipanwita Dutta, B. K. Nandi, Osamu Jinnouchi, C. Zhang, Jun Kikuchi, A. Kiyomichi, Xingguo Li, C. Pinkenburg, Hiroyuki Okada, Y. Kuroki, A. D. Frawley, W. Y. Jang, Anne Marie Sickles, Julia Velkovska, E. J. Desmond, I. V. Sourikova, H. Torii, Joakim Nystrand, M. Stepanov, G. Roche, V. Ladygin, M. Gonin, H. J. Kim, D. Isenhower, Senta Greene, M. Nara, Do-Won Kim, P. J. Kroon, V.N. Penev, Dong-Hun Kim, Jean-Pierre Cussonneau, I. Tserruya, German Martinez, V. Bumazhnov, M. P. Comets, M. Togawa, Ferenc Deák, R. G. De Cassagnac, Minghui Liu, N. Kamihara, Wei Xie, M. Hibino, E. O'Brien, V. Singh, A. Deshpande, J. Park, Florian Bauer, F. Matathias, R. Armendariz, Kenneth Francis Read, K. Kurita, L. Villatte, S. H. Aronson, G. B. Kim, A. P.T. Palounek, Yves Roland Schutz, A. Drees, D. Koehler, H. Pereira, M. Sivertz, Y. Tsuchimoto, Charles Maguire, S. Leckey, S. Garpman, R. Amirikas, D. Pal, W. Holzmann, Josh Moss, W. C. Chang, J. L. Drachenberg, I. E. Yushmanov, Maya Hachiya Shimomura, Hirohiko Sato, S. K. Tuli, Roy A. Lacey, H. A. Gustafsson, M. Tamai, E. M. Takagui, R. S. Towell, E. Kistenev, Y. I. Makdisi, Peter M. Nilsson, R. E. Mischke, A. G. Hansen, Shingo Sakai, Ch. Finck, Jason Newby, J. G. Lajoie, T. Hachiya, J. Murata, I. J. Choi, N. Hayashi, Viktor Riabov, C. Y. Chi, M. J. Tannenbaum, S. Esumi, V. V. Ikonnikov, W. A. Zajc, D. Bucher, V. Baublis, A. Denisov, V. Cianciolo, Sergey Fokin, T. Horaguchi, A. Hoover, V.A. Onuchin, S. Belikov, K. S. Joo, K. El Chenawi, M. R. Shaw, Marie Germain, H. W. Van Hecke, S. C. Johnson, M. J. Kweon, A. G. Litvinenko, Y. Le Bornec, Kensuke Homma, E. Melnikov, S. Chernichenko, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, A. Kiss, T. Ichihara, M. Konno, A. Kozlov, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, G. R. Young, R. Seto, Atsushi Taketani, Henner Buesching, C. L. Woody, M. T. Bjorndal, I. D. Ojha, Alexander Malakhov, J. T. Mitchell, V. Dzhordzhadze, Martin Purschke, P. Chand, Vladislav Manko, X. He, M. D. Marx, L. S. Zolin, W. J. Park, T. Chujo, V. Peresedov, X. Camard, A. Parmar, D. Kotchetkov, S. Bhagavatula, Christine Angela Aidala, P. D. Barnes, A. Yanovich, Z. Fraenkel, H. Masui, R. K. Choudhury, S. N. White, H. Kobayashi, S. Takagi, S. Bathe, Terry C Awes, K. N. Barish, Agneta Oskarsson, Y. Berdnikov, M. Ono, A. Soldatov, W. E. Sondheim, Y. Akiba, S. Nagamiya, Kazuhiro Tanaka, Klaus Johannes Reygers, T. J. Uam, S. Y. Fung, M. L. Brooks, John Hill, K. Oyama, Toru Sugitate, L. D. Isenhower, R. Azmoun, D. Mukhopadhyay, Y. Cobigo, I. Ravinovich, François Fleuret, F. Plasil, S. S. Ryu, Ahmed Al-Jamel, J. E. Frantz, A. Glenn, and V. L. Rykov

Subjects
Physics, Nuclear and High Energy Physics, Annihilation, Meson, 010308 nuclear & particles physics, Nuclear Theory, Parton, Electron, 7. Clean energy, 01 natural sciences, Nuclear physics, Momentum, Deuterium, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract

Inclusive transverse momentum spectra of eta mesons in the range p(T)approximate to 2-12 GeV/c have been measured at midrapidity (vertical bar eta vertical bar gamma gamma channel for the three colliding systems as well as through the eta ->pi(0)pi(+)pi(-) decay mode in p+p and d+Au collisions. The nuclear modification factor in d+Au collisions, R-dAu(p(T))approximate to 1.0-1.1, suggests at most only modest p(T) broadening ("Cronin enhancement"). In central Au+Au reactions, the eta yields are significantly suppressed, with R-AuAu(p(T))approximate to 0.2. The ratio of eta to pi(0) yields is approximately constant as a function of p(T) for the three colliding systems in agreement with the high-p(T) world average of R-eta/pi(0)approximate to 0.5 in hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions for a wide range of center-of-mass energies (root sNN approximate to 3-1800 GeV) as well as, for high scaled momentum x(p), in e(+)e(-) annihilations at root s=91.2 GeV. These results are consistent with a scenario where high-p(T) eta production in nuclear collisions at the Relativistic Heavy Ion Collider is largely unaffected by initial-state effects but where light-quark mesons (pi(0),eta) are equally suppressed due to final-state interactions of the parent partons in the dense medium produced in Au+Au reactions.

Published
2007
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14. Measurement of Direct Photon Production inp+pCollisions ats=200 GeV

Author

J. E. Frantz, Herve Borel, A. Glenn, Alexei Khanzadeev, S. Afanasiev, A. Ster, V. L. Rykov, N. Bruner, M. Heffner, Robert F. Hobbs, A. Taranenko, B. Khachaturov, T. Matsumoto, K. Hasuko, Hiroyuki Okada, Joakim Nystrand, J. M. Burward-Hoy, R. A. Soltz, M. Grosse Perdekamp, O. Zaudtke, A. Pierson, J. L. Drachenberg, David Olle Rickard Silvermyr, S. Sawada, J. G. Boissevain, A. Franz, D. Mukhopadhyay, Y. Cobigo, Masashi Kaneta, I. Ravinovich, K. Katou, P. Tarján, Sean A. Kelly, S. S. Ryu, Viktor Veszpremi, Ahmed Al-Jamel, Anne Marie Sickles, C. Pinkenburg, S. Y. Fung, M. Stepanov, L. Sanfratello, T. L. Thomas, G. Roche, T. E. Miller, J. Gosset, Senta Greene, K. Ozawa, E. J. Desmond, V. Bumazhnov, M. P. Comets, J. P. Sullivan, C. H. Kuberg, J. Chiba, R. Santo, D. E. Fields, E. O'Brien, Jean-Pierre Cussonneau, O. Dietzsch, M. Togawa, S. P. Sorensen, B. V. Jacak, J. Park, Wei Xie, G. R. Young, Florian Bauer, Dipanwita Dutta, B. D. Fox, S. Yokkaichi, J. M. Heuser, Ryugo S. Hayano, A. Deshpande, X. He, A. K. Purwar, John Hill, K. Oyama, Y. Tsuchimoto, W. C. Chang, M. Rosati, M. Velkovsky, Ferenc Deák, N. Kamihara, I. E. Yushmanov, Roy A. Lacey, Y. J. Mao, J. T. Mitchell, Bruno Espagnon, A. A. Vinogradov, S. Kametani, S. S. Adler, G. S. Kyle, Y. Tanaka, Toru Sugitate, Henrik Tydesjö, L. D. Isenhower, V. Peresedov, Pàl Hidas, T. K. Shea, V-N. Tram, J. H. Kang, G. C. Mishra, M. Chiu, Ajit Kumar Mohanty, Youngil Kwon, T. A. Shibata, Takao Sakaguchi, J. G. Lajoie, Y. Riabov, T. Hachiya, Kenta Shigaki, S. Butsyk, P. L. McGaughey, Jiangyong Jia, Y. Goto, V. S. Pantuev, Vladimir Samsonov, C. Klein-Boesing, N. N. Ajitanand, J. S. Haggerty, S. F. Pate, A. Romana, M. Harvey, Ch. Finck, Jason Newby, Junji Tojo, A. S. Nyanin, K. S. Sim, D. Isenhower, X. R. Wang, A. D. Frawley, François Fleuret, Ingvar Otterlund, I. J. Choi, M. Gonin, V.N. Penev, Takahiro Nakamura, F. Matathias, R. Armendariz, German Martinez, K. Okada, Tamas Ferenc Csorgo, Charles Maguire, A. Kiss, Motoi Inaba, S. Leckey, Y. Watanabe, K. Kurita, H. Pereira, Anders Nils Erik Oskarsson, J. L. Nagle, T. Ichihara, F. K. Wohn, Matthew G. Reuter, Vladislav Manko, Henner Buesching, S. H. Aronson, M. Issah, H. En'yo, P. Constantin, W. Holzmann, H. Masui, V. Papavassiliou, A. Durum, Sébastien Gadrat, A. Drees, A. V. Kazantsev, I. D. Ojha, A. Devismes, M. J. Leitch, Alexander Malakhov, Hiroaki Ohnishi, F. Kajihara, Josh Moss, D. S. Brown, C. L. Woody, H. Hiejima, Mate Csanad, E. Vznuzdaev, N. Willis, L. S. Zolin, James Alexander, J. M. Qualls, T. Chujo, H. Delagrange, Maya Hachiya Shimomura, Y. I. Makdisi, Marie Germain, W. J. Park, K. Das, X. Camard, N. Grau, C. Zhang, P. D. Barnes, A. G. Litvinenko, A. Yanovich, E. Kistenev, S. Zhou, Xingguo Li, P. Chand, R. Averbeck, Byung-Sik Hong, E. P. Hartouni, K. Imai, David D'Enterria, Martin Purschke, Evert Anders Stenlund, A. G. Hansen, M. A. Volkov, S. N. White, Shingo Sakai, A. Kozlov, R. Seto, H. W. Vanhecke, Christine Angela Aidala, A. Bazilevsky, Jan Rak, R. P. Pisani, M. J. Tannenbaum, Nikolay Tyurin, D. Kotchetkov, V. Dzhordzhadze, H. Pei, Viktor Riabov, S. Takagi, W. E. Sondheim, V. V. Ikonnikov, R. Granier de Cassagnac, Yoichiro Fukao, K. N. Barish, T. C. Awes, L. Aphecetche, Takeo Kawabata, M. C. McCain, C. A. Ogilvie, Jun Kikuchi, M. T. Bjorndal, D. Bucher, T. K. Hemmick, Yasuo Miake, S. Batsouli, I. V. Sourikova, H. Torii, Z. Fraenkel, P. W. Stankus, Philippe Rosnet, T. J. Uam, Minghui Liu, H. J. Kim, L. Kochenda, Kenneth Francis Read, M. L. Brooks, Alexandre Lebedev, R. Kohara, A. P.T. Palounek, Kensuke Homma, A. Soldatov, S. P. Stoll, K. Tanida, S. Esumi, S. S.E. Rosendahl, G. Bunce, D. M. Lee, V. I. Kochetkov, S. Chernichenko, R. K. Choudhury, W. A. Zajc, H. Lim, Xiaopeng Zong, D. Jouan, B. Bassalleck, V. Baublis, A. Denisov, V. Cianciolo, M. Inuzuka, Hideki Hamagaki, K. Aoki, G. David, S. C. Johnson, M. Konno, Sergey Fokin, Gerd Joachim Kunde, H. Kobayashi, S. Bathe, I. Shein, Saskia Mioduszewski, T. Horaguchi, A. Hoover, E. H. Kim, M. J. Kweon, Y. Le Bornec, Y. Akiba, P. J. Kroon, S. Nagamiya, Yves Roland Schutz, Kazuhiro Tanaka, Alberto Baldisseri, Klaus Johannes Reygers, C. L. Silva, D. Pal, Masayasu Ishihara, Susumu Sato, E. M. Takagui, M. Muniruzzaman, Atsushi Taketani, F. Staley, S. Belikov, K. S. Joo, B. Komkov, Hans-Åke Gustafsson, B. M. Johnson, Norio Saito, M. A. L. Leite, A. Isupov, V. Babintsev, Brian Cole, R. S. Towell, Akio Kiyomichi, C. Y. Chi, Jen-Chieh Peng, Dong Jo Kim, Osamu Jinnouchi, I. Tserruya, Yu. Efremenko, G. B. Kim, Hirohiko Sato, J. Velkovska, Alexander Milov, O. Drapier, E. R. Kinney, D. P. Morrison, V. E. Semenov, and J. Zimányi

Subjects
Quantum chromodynamics, Physics, Photon, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, General Physics and Astronomy, Parton, Jet (particle physics), 01 natural sciences, 7. Clean energy, Nuclear physics, Transverse plane, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract

Cross sections for midrapidity production of direct photons in p+p collisions at the Relativistic Heavy Ion Collider (RHIC) are reported for transverse momenta of 3 5 GeV/c, where the uncertainties of the measurement and theory are comparable. We also report on the effect of requiring the photons to be isolated from parton jet energy. The observed fraction of isolated photons is well described by pQCD for p(T)> 7 GeV/c.

Published
2007
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15. Jet properties from dihadron correlations inp+pcollisions ats=200 GeV

Author

N. Grau, K. Tanida, B. D. Fox, V. I. Kochetkov, P. W. Stankus, S. Takagi, K. N. Barish, H. Kobayashi, S. Bathe, Kensuke Homma, Gerd Joachim Kunde, B. M. Johnson, R. A. Soltz, I. Shein, S. S. Adler, G. S. Kyle, T. J. Uam, M. Grosse Perdekamp, N. Willis, James Alexander, S. Chernichenko, H. Lim, M. L. Brooks, Y. Akiba, C. H. Kuberg, K. Das, Alberto Baldisseri, R. Averbeck, B. Bassalleck, Byung-Sik Hong, S. Nagamiya, Brian Cole, Alexei Khanzadeev, A. Bazilevsky, Kazuhiro Tanaka, M. Konno, J. Chiba, A. Pierson, Philippe Rosnet, Klaus Johannes Reygers, N. Bruner, X. He, Alexandre Lebedev, E. P. Hartouni, V. Peresedov, H. Masui, D. M. Lee, G. C. Mishra, Takao Sakaguchi, David Olle Rickard Silvermyr, J. Gosset, J. P. Sullivan, X. Zong, Saskia Mioduszewski, Marie Germain, C. L. Silva, Hiroaki Ohnishi, A. G. Litvinenko, A. Kozlov, R. Seto, J. M. Qualls, E. H. Kim, V. Bumazhnov, M. P. Comets, V. Dzhordzhadze, C. Klein-Boesing, Yves Roland Schutz, A. D. Frawley, J. T. Mitchell, O. Dietzsch, S. C. Johnson, P. L. McGaughey, M. J. Kweon, Masayasu Ishihara, Susumu Sato, D. Pal, Y. Le Bornec, T. Ichihara, F. K. Wohn, R. Kohara, D. E. Fields, S. H. Aronson, Sean A. Kelly, Vladislav Manko, E. M. Takagui, R. S. Towell, B. V. Jacak, Viktor Veszpremi, M. Inuzuka, Hideki Hamagaki, Dipanwita Dutta, Matthew G. Reuter, G. David, Akio Kiyomichi, S. Yokkaichi, J. M. Heuser, I. D. Ojha, Alexander Malakhov, M. Muniruzzaman, F. Staley, A. K. Purwar, W. Holzmann, Maya Hachiya Shimomura, T. Chujo, H. W. Van Hecke, J. E. Frantz, X. Camard, T. L. Thomas, M. Rosati, P. Tarján, W. C. Chang, Xingguo Li, L. S. Zolin, Y. I. Makdisi, E. J. Desmond, M. Velkovsky, J. G. Boissevain, Masashi Kaneta, B. Komkov, A. Kiss, C. Y. Chi, Herve Borel, Christine Angela Aidala, Senta Greene, Jean-Pierre Cussonneau, W. J. Park, A. Glenn, K. Katou, Alexander Milov, S. P. Stoll, M. Togawa, Hans-Åke Gustafsson, Atsushi Taketani, J. M. Burward-Hoy, Roy A. Lacey, Y. Tanaka, T. K. Shea, Norio Saito, P. D. Barnes, A. Yanovich, Henner Buesching, C. L. Woody, J. Park, M. J. Tannenbaum, M. Gonin, B. Khachaturov, A. A. Vinogradov, Henrik Tydesjö, T. Matsumoto, C. Pinkenburg, M. A. L. Leite, V.N. Penev, Florian Bauer, E. O'Brien, V. L. Rykov, Jiangyong Jia, Y. Goto, P. Chand, Ryugo S. Hayano, M. T. Bjorndal, Martin Purschke, N. N. Ajitanand, Anne Marie Sickles, S. Butsyk, Vladimir Samsonov, S. N. White, S. S.E. Rosendahl, G. Bunce, V. V. Ikonnikov, Takahiro Nakamura, Y. Tsuchimoto, D. Bucher, M. Stepanov, G. Roche, Y. J. Mao, K. Hasuko, K. Kurita, S. Kametani, Y. J. Kwon, D. Kotchetkov, I. E. Yushmanov, Z. Fraenkel, L. Sanfratello, Tamas Ferenc Csorgo, W. E. Sondheim, Minghui Liu, Y. Riabov, Pàl Hidas, J. H. Kang, J. S. Haggerty, A. Romana, P. J. Kroon, Kenta Shigaki, V. Babintsev, Hiroyuki Okada, Joakim Nystrand, A. Durum, J. L. Nagle, G. R. Young, R. K. Choudhury, S. Belikov, K. S. Joo, H. Pereira, S. Y. Fung, D. S. Brown, J. L. Drachenberg, Y. Watanabe, D. Jouan, Charles Maguire, S. Leckey, D. Mukhopadhyay, K. Ozawa, S. Esumi, Y. Cobigo, A. S. Nyanin, O. Drapier, E. R. Kinney, D. P. Morrison, I. Ravinovich, Anders Nils Erik Oskarsson, Kenneth Francis Read, S. P. Sorensen, John Hill, K. Oyama, A. V. Kazantsev, Ferenc Deák, N. Kamihara, Ch. Finck, S. Afanasiev, Jason Newby, A. Ster, Josh Moss, Toru Sugitate, L. D. Isenhower, A. Isupov, A. Soldatov, F. Matathias, R. Armendariz, V. E. Semenov, S. S. Ryu, V. S. Pantuev, E. Kistenev, François Fleuret, M. Harvey, J. G. Lajoie, T. Hachiya, K. S. Sim, Junji Tojo, Ahmed Al-Jamel, J. Zimányi, A. Drees, L. Aphecetche, W. A. Zajc, Ingvar Otterlund, K. Okada, I. J. Choi, H. Pei, H. En'yo, P. Constantin, M. A. Volkov, Takeo Kawabata, M. C. McCain, M. J. Leitch, V. Baublis, K. Aoki, M. Heffner, C. A. Ogilvie, T. K. Hemmick, H. Hiejima, Yoichiro Fukao, H. J. Kim, Yasuo Miake, A. Taranenko, A. Denisov, L. Kochenda, V. Cianciolo, K. Imai, T. C. Awes, Jun Kikuchi, Jen-Chieh Peng, Evert Anders Stenlund, Jan Rak, A. G. Hansen, Shingo Sakai, Sergey Fokin, R. Granier de Cassagnac, T. Horaguchi, A. Hoover, I. V. Sourikova, H. Torii, M. Issah, E. Vznuzdaev, C. Zhang, Wei Xie, A. Deshpande, Viktor Riabov, Dong Jo Kim, Osamu Jinnouchi, S. Batsouli, A. P.T. Palounek, I. Tserruya, Yu. Efremenko, G. B. Kim, Hirohiko Sato, J. Velkovska, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, D. Isenhower, German Martinez, A. Devismes, F. Kajihara, H. Delagrange, S. Zhou, T. E. Miller, R. Santo, Robert F. Hobbs, S. Sawada, A. Franz, B. Espagnon, S. F. Pate, X. R. Wang, V. Papavassiliou, Sébastien Gadrat, Mate Csanad, David D'Enterria, R. P. Pisani, Nikolay Tyurin, V-N. Tram, and Motoi Inaba

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, 01 natural sciences, Spectral line
Abstract

The properties of jets produced in p+p collisions at root s=200 GeV are measured using the method of two-particle correlations. The trigger particle is a leading particle from a large transverse momentum jet while the associated particle comes from either the same jet or the away-side jet. Analysis of the angular width of the near-side peak in the correlation function determines the jet-fragmentation transverse momentum j(T). The extracted value, root =585 +/- 6(stat)+/- 15(sys) MeV/c, is constant with respect to the trigger particle transverse momentum, and comparable to the previous lower root s measurements. The width of the away-side peak is shown to be a convolution of j(T) with the fragmentation variable, z, and the partonic transverse momentum, k(T). The is determined through a combined analysis of the measured pi(0) inclusive and associated spectra using jet-fragmentation functions measured in e(+)e(-) collisions. The final extracted values of k(T) are then determined to also be independent of the trigger particle transverse momentum, over the range measured, with value of root =2.68 +/- 0.07(stat)+/- 0.34(sys) GeV/c.

Published
2006
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16. Nuclear effects on hadron production ind+Aucollisions atsNN=200GeV revealed by comparison withp+pdata

Author

P. J. Kroon, N. Grau, M. Inuzuka, Hideki Hamagaki, G. David, P. W. Stankus, S. Afanasiev, A. Ster, X. He, G. Roche, V. Peresedov, B. D. Fox, Maya Hachiya Shimomura, Y. I. Makdisi, J. M. Burward-Hoy, M. Heffner, Y. J. Kwon, H. Masui, A. Taranenko, D. E. Fields, M. T. Bjorndal, B. V. Jacak, M. J. Tannenbaum, L. Sanfratello, Mate Csanad, O. Dietzsch, A. K. Purwar, B. Khachaturov, Marie Germain, M. Gonin, Sean A. Kelly, T. Matsumoto, A. G. Litvinenko, V. V. Ikonnikov, D. Bucher, K. Ozawa, A. Kozlov, R. Seto, K. Hasuko, Dipanwita Dutta, David D'Enterria, V.N. Penev, Viktor Veszpremi, R. P. Pisani, A. V. Kazantsev, Kensuke Homma, C. H. Kuberg, C. Zhang, J. Chiba, K. Kurita, V. Dzhordzhadze, S. Takagi, Hiroyuki Okada, Joakim Nystrand, V. S. Pantuev, H. Pei, S. Kametani, H. Pereira, Nikolay Tyurin, S. Chernichenko, K. Das, H. Lim, E. P. Hartouni, K. N. Barish, N. N. Ajitanand, M. Rosati, G. C. Mishra, B. Bassalleck, L. Aphecetche, Takeo Kawabata, M. C. McCain, M. Harvey, Pàl Hidas, Takao Sakaguchi, J. H. Kang, M. Velkovsky, Senta Greene, H. J. Kim, J. L. Drachenberg, J. S. Haggerty, Yoichiro Fukao, Viktor Riabov, Takahiro Nakamura, M. Konno, Y. Mao, S. C. Johnson, C. Klein-Boesing, R. S. Towell, Junji Tojo, A. Romana, T. C. Awes, S. F. Pate, T. J. Uam, M. J. Kweon, S. Gadrat, S. P. Sorensen, Jun Kikuchi, S. Batsouli, Akio Kiyomichi, Y. Le Bornec, A. Durum, K. S. Sim, A. D. Frawley, M. A. Volkov, M. L. Brooks, J. T. Mitchell, Charles Maguire, S. Leckey, E. O'Brien, A. A. Vinogradov, Henrik Tydesjö, Josh Moss, Minghui Liu, X. R. Wang, D. S. Brown, K. Okada, S. H. Aronson, C. A. Ogilvie, T. K. Hemmick, V-N. Tram, R. A. Soltz, S. N. White, Jiangyong Jia, E. Kistenev, Yasuo Miake, Y. Goto, W. Holzmann, Vladislav Manko, J. G. Lajoie, Anders Nils Erik Oskarsson, T. Hachiya, Kenneth Francis Read, H. En'yo, P. Constantin, H. Hiejima, M. J. Leitch, Wei Xie, I. Tserruya, L. Kochenda, Motoi Inaba, Yu. Efremenko, M. Grosse Perdekamp, H. Kobayashi, S. Bathe, W. E. Sondheim, A. Pierson, Ingvar Otterlund, I. J. Choi, Hiroaki Ohnishi, V. Papavassiliou, X. Zong, A. P.T. Palounek, Atsushi Taketani, A. Deshpande, K. Imai, C. Y. Chi, R. Kohara, Robert F. Hobbs, Y. Akiba, S. Y. Fung, Y. Tanaka, J. M. Qualls, S. Nagamiya, P. L. McGaughey, S. Esumi, S. Belikov, K. S. Joo, John Hill, K. Oyama, J. G. Boissevain, C. L. Silva, T. K. Shea, Kazuhiro Tanaka, Klaus Johannes Reygers, S. P. Stoll, Masashi Kaneta, W. A. Zajc, M. Chiu, Ajit Kumar Mohanty, S. S.E. Rosendahl, Jan Rak, T. Chujo, K. Katou, X. Camard, G. Bunce, Masayasu Ishihara, S. Sawada, R. Granier de Cassagnac, David Olle Rickard Silvermyr, G. B. Kim, V. Baublis, K. Aoki, Toru Sugitate, L. D. Isenhower, A. Franz, A. Denisov, V. Cianciolo, T. A. Shibata, Sergey Fokin, Susumu Sato, C. Pinkenburg, M. Issah, D. Jouan, M. Muniruzzaman, A. Kiss, B. Espagnon, Xingguo Li, D. Isenhower, Ferenc Deák, N. Kamihara, E. Vznuzdaev, F. Staley, Henner Buesching, C. L. Woody, M. Stepanov, T. Horaguchi, A. Hoover, François Fleuret, Martin Purschke, F. Matathias, German Martinez, R. Armendariz, T. Ichihara, A. Drees, F. K. Wohn, Christine Angela Aidala, Anne Marie Sickles, P. Chand, J. Gosset, J. P. Sullivan, B. M. Johnson, D. Kotchetkov, Evert Anders Stenlund, A. G. Hansen, Matthew G. Reuter, T. E. Miller, R. Santo, Z. Fraenkel, Shingo Sakai, I. D. Ojha, Alexander Malakhov, P. Rosnet, G. R. Young, R. K. Choudhury, Y. Watanabe, S. Yokkaichi, A. Devismes, J. M. Heuser, F. Kajihara, L. S. Zolin, W. J. Park, H. W. Van Hecke, H. Delagrange, P. D. Barnes, A. Yanovich, S. Zhou, I. V. Sourikova, H. Torii, T. L. Thomas, Ryugo S. Hayano, A. Soldatov, D. Mukhopadhyay, Y. Cobigo, Y. Riabov, Kenta Shigaki, J. E. Frantz, A. S. Nyanin, K. Tanida, V. I. Kochetkov, Brian Cole, Herve Borel, A. Glenn, V. L. Rykov, I. Ravinovich, A. Isupov, S. S. Ryu, Ahmed Al-Jamel, Saskia Mioduszewski, Hirohiko Sato, Gerd Joachim Kunde, I. Shein, Yves Roland Schutz, J. Velkovska, D. Pal, E. M. Takagui, Alexander Milov, O. Drapier, Alberto Baldisseri, E. R. Kinney, D. P. Morrison, V. E. Semenov, J. Zimányi, Jen-Chieh Peng, Dong Jo Kim, Osamu Jinnouchi, E. J. Desmond, Jean-Pierre Cussonneau, M. Togawa, J. Park, Florian Bauer, Y. Tsuchimoto, I. E. Yushmanov, Alexei Khanzadeev, N. Bruner, Ch. Finck, Jason Newby, S. Butsyk, Vladimir Samsonov, Tamas Ferenc Csorgo, J. L. Nagle, V. Bumazhnov, M. P. Comets, P. Tarján, W. C. Chang, Roy A. Lacey, S. S. Adler, G. S. Kyle, N. Willis, James Alexander, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Alexandre Lebedev, D. M. Lee, B. Komkov, Hans-Åke Gustafsson, Norio Saito, M. A. L. Leite, V. Babintsev, and E. H. Kim

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Proton, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Parton, 7. Clean energy, 01 natural sciences, Gluon, Baryon, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon, Relativistic Heavy Ion Collider
Abstract

PHENIX has measured the centrality dependence of midrapidity pion, kaon, and proton transverse momentum distributions in d+Au and p+p collisions at root s(NN) = 200 GeV. The p+p data provide a reference for nuclear effects in d+Au and previously measured Au+Au collisions. Hadron production is enhanced in d+Au, relative to independent nucleon-nucleon scattering, as was observed in lower energy collisions. The nuclear modification factor for (anti)protons is larger than that for pions. The difference increases with centrality but is not sufficient to account for the abundance of baryon production observed in central Au+Au collisions at the BNL Relativistic Heavy Ion Collider (RHIC). The centrality dependence in d+Au shows that the nuclear modification factor increases gradually with the number of collisions encountered by each participant nucleon. We also present comparisons with lower energy data as well as with parton recombination and other theoretical models of nuclear effects on particle production.

Published
2006
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17. Azimuthal Angle Correlations for Rapidity Separated Hadron Pairs ind+AuCollisions atsNN=200 GeV

Author

S. N. White, C. H. Kuberg, J. Chiba, T. E. Miller, S. Batsouli, G. C. Mishra, R. Santo, V-N. Tram, Takao Sakaguchi, Robert F. Hobbs, C. Klein-Boesing, A. D. Frawley, D. Mukhopadhyay, S. Butsyk, S. Afanasiev, A. Ster, Vladimir Samsonov, Y. Cobigo, W. E. Sondheim, M. Chiu, Ajit Kumar Mohanty, Y. J. Mao, S. Kametani, Pàl Hidas, I. Tserruya, Yu. Efremenko, J. H. Kang, J. S. Haggerty, A. Romana, Anders Nils Erik Oskarsson, S. C. Johnson, M. J. Kweon, Motoi Inaba, T. A. Shibata, S. Sawada, A. Franz, Minghui Liu, S. H. Aronson, G. B. Kim, A. P.T. Palounek, D. Isenhower, German Martinez, B. Espagnon, J. E. Frantz, Kenneth Francis Read, Wei Xie, H. Kobayashi, A. Deshpande, S. Bathe, Tamas Ferenc Csorgo, Anne Marie Sickles, Y. Le Bornec, Kensuke Homma, Sean A. Kelly, Mate Csanad, Viktor Veszpremi, J. L. Nagle, Ferenc Deák, N. Kamihara, D. E. Fields, B. V. Jacak, W. Holzmann, Herve Borel, A. Glenn, Y. Akiba, S. Y. Fung, M. Heffner, A. Taranenko, S. Chernichenko, Hirohiko Sato, F. Matathias, R. Armendariz, J. Velkovska, V. S. Pantuev, A. Drees, S. Takagi, Maya Hachiya Shimomura, S. Nagamiya, Kazuhiro Tanaka, A. Devismes, V. L. Rykov, I. Ravinovich, Y. I. Makdisi, F. Kajihara, H. Lim, B. Bassalleck, David D'Enterria, Klaus Johannes Reygers, P. L. McGaughey, A. K. Purwar, S. Esumi, H. Delagrange, M. Harvey, M. Konno, Jen-Chieh Peng, Atsushi Taketani, Y. Tanaka, T. K. Shea, V. Bumazhnov, M. P. Comets, M. J. Tannenbaum, Senta Greene, John Hill, K. Oyama, Toru Sugitate, L. D. Isenhower, R. P. Pisani, Martin Purschke, V. V. Ikonnikov, Nikolay Tyurin, S. Zhou, S. F. Pate, M. A. Volkov, François Fleuret, K. N. Barish, M. Issah, N. Grau, A. Isupov, S. S. Ryu, E. O'Brien, D. Kotchetkov, Ahmed Al-Jamel, Dong Jo Kim, Osamu Jinnouchi, Junji Tojo, N. N. Ajitanand, X. R. Wang, R. A. Soltz, B. Khachaturov, P. Tarján, T. Matsumoto, Y. Watanabe, D. Bucher, A. V. Kazantsev, K. Hasuko, T. Ichihara, W. A. Zajc, V. Baublis, K. Aoki, A. Denisov, V. Cianciolo, E. Vznuzdaev, Sergey Fokin, M. T. Bjorndal, F. K. Wohn, Z. Fraenkel, W. C. Chang, Alexander Milov, K. Okada, M. Grosse Perdekamp, Matthew G. Reuter, Hiroyuki Okada, A. Pierson, V. Papavassiliou, Sébastien Gadrat, C. A. Ogilvie, T. K. Hemmick, Takahiro Nakamura, Roy A. Lacey, H. En'yo, O. Drapier, Joakim Nystrand, I. D. Ojha, Alexander Malakhov, Yasuo Miake, P. Constantin, Charles Maguire, S. Leckey, T. Horaguchi, E. R. Kinney, A. Hoover, P. W. Stankus, D. P. Morrison, R. K. Choudhury, S. Belikov, K. S. Joo, Yoichiro Fukao, J. T. Mitchell, M. J. Leitch, V. E. Semenov, J. Zimányi, T. J. Uam, L. Aphecetche, Vladislav Manko, Takeo Kawabata, M. C. McCain, David Olle Rickard Silvermyr, A. Durum, Josh Moss, L. S. Zolin, A. Soldatov, L. Kochenda, T. Chujo, M. L. Brooks, H. W. Van Hecke, J. M. Burward-Hoy, X. Camard, W. J. Park, E. Kistenev, T. C. Awes, Christine Angela Aidala, P. D. Barnes, A. Yanovich, D. S. Brown, Y. J. Kwon, Jun Kikuchi, J. G. Boissevain, Masashi Kaneta, K. Katou, C. Pinkenburg, A. Kiss, M. Stepanov, G. Roche, C. L. Silva, L. Sanfratello, R. Kohara, J. Gosset, J. P. Sullivan, Henner Buesching, C. L. Woody, Marie Germain, C. Zhang, S. Yokkaichi, J. M. Heuser, K. Ozawa, Masayasu Ishihara, P. Chand, H. Pei, Susumu Sato, S. P. Stoll, B. D. Fox, M. Muniruzzaman, A. G. Litvinenko, P. J. Kroon, Viktor Riabov, F. Staley, H. J. Kim, K. Tanida, S. S.E. Rosendahl, G. Bunce, V. I. Kochetkov, A. Kozlov, M. Rosati, M. Velkovsky, A. A. Vinogradov, Henrik Tydesjö, R. Seto, Jiangyong Jia, Y. Goto, D. Jouan, O. Dietzsch, Gerd Joachim Kunde, Dipanwita Dutta, I. Shein, V. Dzhordzhadze, X. He, M. Inuzuka, Hideki Hamagaki, K. Das, V. Peresedov, E. P. Hartouni, G. David, Alberto Baldisseri, Saskia Mioduszewski, H. Masui, Yves Roland Schutz, D. Pal, E. M. Takagui, R. S. Towell, Akio Kiyomichi, C. Y. Chi, B. M. Johnson, Brian Cole, G. R. Young, Jan Rak, R. Granier de Cassagnac, K. S. Sim, H. Hiejima, K. Imai, J. L. Drachenberg, Ch. Finck, Jason Newby, S. P. Sorensen, Alexei Khanzadeev, N. Bruner, J. G. Lajoie, T. Hachiya, Ingvar Otterlund, I. J. Choi, M. Gonin, V.N. Penev, K. Kurita, H. Pereira, E. J. Desmond, Jean-Pierre Cussonneau, M. Togawa, J. Park, Hiroaki Ohnishi, Florian Bauer, Y. Tsuchimoto, J. M. Qualls, I. E. Yushmanov, Xingguo Li, I. V. Sourikova, H. Torii, T. L. Thomas, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, A. S. Nyanin, Evert Anders Stenlund, A. G. Hansen, Shingo Sakai, E. H. Kim, S. S. Adler, G. S. Kyle, N. Willis, James Alexander, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, Xiaopeng Zong, B. Komkov, Hans-Åke Gustafsson, Norio Saito, M. A. L. Leite, and V. Babintsev

Subjects
Physics, Quantum chromodynamics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hadron, General Physics and Astronomy, Parton, Jet (particle physics), 7. Clean energy, 01 natural sciences, Color-glass condensate, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Nucleon
Abstract

Deuteron-gold (d+Au) collisions at the Relativistic Heavy Ion Collider provide ideal platforms for testing QCD theories in dense nuclear matter at high energy. In particular, models suggesting strong saturation effects for partons carrying small nucleon momentum fraction (x) predict modifications to jet production at forward rapidity (deuteron-going direction) in d+Au collisions. We report on two-particle azimuthal angle correlations between charged hadrons at forward/backward (deuteron/gold going direction) rapidity and charged hadrons at midrapidity in d+Au and p+p collisions at root s(NN)=200 GeV. Jet structures observed in the correlations are quantified in terms of the conditional yield and angular width of away-side partners. The kinematic region studied here samples partons in the gold nucleus with x similar to 0.1 to similar to 0.01. Within this range, we find no x dependence of the jet structure in d+Au collisions.

Published
2006
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18. Improved measurement of double helicity asymmetry in inclulsive midrapidityπ0production for polarizedp+pcollisions ats=200 GeV

Author

M. Issah, M. D. Malik, E. Vznuzdaev, N. N. Ajitanand, O. Dietzsch, J. G. Boissevain, Masashi Kaneta, Takahiro Nakamura, A. Hadj Henni, T. V. Moukhanova, Ferenc Deák, N. Kamihara, K. Katou, K. Boyle, Wei Xie, H. Valle, Maya Hachiya Shimomura, O. Zaudtke, T. Shohjoh, F. Matathias, R. Armendariz, Kazuyoshi Kurita, A. Durum, Y. Cobigo, A. Drees, J. L. Drachenberg, Y. I. Makdisi, I. Ravinovich, D. S. Brown, C. Pinkenburg, Y. Nagata, A. Isupov, S. S. Ryu, Dipanwita Dutta, Julia Velkovska, M. Stepanov, G. Roche, S. F. Pate, Y. Tanaka, L. Aphecetche, Takeo Kawabata, R. Kohara, C. Zhang, C. R. Cleven, J. Egdemir, D. E. Fields, S. Afanasiev, A. Ster, M. J. Tannenbaum, B. V. Jacak, V. V. Ikonnikov, T. K. Shea, R. Bennett, Ahmed Al-Jamel, A. K. Purwar, S. P. Stoll, Johannes Peter Wessels, D. Mukhopadhyay, D. Bucher, C. H. Kuberg, S. C. Johnson, B. Azmoun, M. J. Kweon, S. S.E. Rosendahl, G. Bunce, J. E. Frantz, A. Glenn, J. Chiba, V. L. Rykov, T. Dahms, J. M. Burward-Hoy, Minghui Liu, G. C. Mishra, D. Jouan, X. R. Wang, P. J. Kroon, I. Tserruya, J. Gosset, J. P. Sullivan, Kenneth Francis Read, Y. Le Bornec, T. Ichihara, Takao Sakaguchi, M. Rosati, M. Velkovsky, C. Klein-Boesing, M. A. Volkov, J. G. Lajoie, A. D. Frawley, T. Tabaru, B. D. Fox, V-N. Tram, T. Hachiya, S. H. Aronson, C. A. Ogilvie, Y. J. Kwon, Tadaaki Isobe, W. Holzmann, I. J. Choi, A. A. Vinogradov, Henrik Tydesjö, Hiroaki Ohnishi, V. Singh, J. S. Chai, S. Yokkaichi, J. M. Heuser, T. K. Hemmick, Yasuo Miake, P. L. McGaughey, W. C. Smith, Sean A. Kelly, F. K. Wohn, Matthew G. Reuter, Motoi Inaba, S. Batsouli, G. B. Kim, Jiangyong Jia, Y. Goto, A. Dion, L. Sanfratello, J. M. Qualls, E. J. Desmond, Y. J. Mao, S. Kametani, A. Kiss, Yuri Efremenko, L. Kochenda, Mate Csanad, M. K. Lee, Pàl Hidas, J. H. Kang, K. Ozawa, Charles Maguire, S. Leckey, Atsushi Taketani, Jean-Pierre Cussonneau, J. S. Haggerty, V. Papavassiliou, Sébastien Gadrat, E. H. Kim, A. Romana, M. Heffner, T. Kawagishi, Steven E. Skutnik, A. V. Kazantsev, V. Bumazhnov, M. P. Comets, M. Togawa, Viktor Veszpremi, Henner Buesching, S. Belikov, K. S. Joo, J. Park, I. D. Ojha, Alexander Malakhov, Josh Moss, A. Taranenko, C. L. Woody, Soren Pontoppidan Sorensen, Xingguo Li, Robert F. Hobbs, H. Qu, Florian Bauer, Yoichiro Fukao, Hirohiko Sato, E. Kistenev, M. Gonin, V.N. Penev, S. K. Tuli, David D'Enterria, M. C. McCain, V. S. Pantuev, M. Inuzuka, Hideki Hamagaki, M. Harvey, L. S. Zolin, D. Sharma, Jun Kikuchi, G. David, W. J. Park, H. Pereira, K. Das, B. Khachaturov, Jen-Chieh Peng, R. P. Pisani, Debashish Pal, H. Harada, P. Chand, S. Sawada, Paul Stankus, Junji Tojo, H. Pei, A. Franz, E. P. Hartouni, Y. Tsuchimoto, Senta Greene, Martin Purschke, F. Gastineau, M. T. Bjorndal, T. Matsumoto, A. P.T. Palounek, K. Hasuko, P. D. Barnes, A. Yanovich, Nikolay Tyurin, B. E. Norman, S. Y. Fung, B. Espagnon, P. Tarján, K. Okada, D. Kotchetkov, E. O'Brien, R. A. Soltz, H. Borel, H. J. Kim, I. V. Sourikova, M. Grosse Perdekamp, H. Torii, N. Grau, W. C. Chang, I. E. Yushmanov, Hiroyuki Okada, M. N. Wagner, Joakim Nystrand, K. Shoji, B. Sahlmueller, H. En'yo, P. Constantin, S. Esumi, John Hill, K. Oyama, Z. Fraenkel, A. Pierson, Dong Jo Kim, Roy A. Lacey, Osamu Jinnouchi, M. N. Hagiwara, Eva Haslum, S. S. Adler, M. J. Leitch, David Olle Rickard Silvermyr, G. S. Kyle, T. L. Thomas, Toru Sugitate, L. D. Isenhower, Alexei Khanzadeev, W. A. Zajc, S. Butsyk, R. K. Choudhury, D. Winter, D. Yu Peressounko, Ryugo S. Hayano, Vladimir Samsonov, I. Otterlund, N. Willis, James Alexander, V. Baublis, K. Aoki, François Fleuret, B. Forestier, N. Bruner, E. Stenlund, A. Denisov, R. Averbeck, Byung-Sik Hong, V. Cianciolo, S. N. White, A. Bazilevsky, Alexander Milov, M. Wysocki, Sergey Fokin, Philippe Rosnet, Y. Riabov, Kenta Shigaki, O. Drapier, M. Nguyen, E. R. Kinney, T. Horaguchi, A. Hoover, D. P. Morrison, W. E. Sondheim, Tamas Ferenc Csorgo, S. Campbell, P. A. Rukoyatkin, H. A. Gustafsson, J. L. Nagle, V. E. Semenov, J. Zimányi, Alexandre Lebedev, Tatsuya Chujo, D. M. Lee, Kensuke Homma, Viktor Riabov, A. S. Nyanin, Xiaopeng Zong, S. Chernichenko, H. Lim, B. Komkov, B. Bassalleck, Norio Saito, M. A. L. Leite, M. Konno, H. W. Van Hecke, R. Vértesi, J. T. Mitchell, V. Babintsev, A. G. Hansen, Shingo Sakai, Vladislav Manko, H. Kobayashi, S. Bathe, Terry C Awes, Ch. Finck, Jason Newby, Agneta Oskarsson, X. Camard, Y. Berdnikov, Christine Angela Aidala, Y. Akiba, S. Nagamiya, Kazuhiro Tanaka, Klaus Johannes Reygers, K. S. Sim, H. Hiejima, K. Imai, T. E. Miller, R. Santo, A. Enokizono, M. Holmes, Anne Marie Sickles, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, D. Isenhower, German Martinez, A. Devismes, Taku Gunji, Jan Rak, F. Kajihara, R. Granier de Cassagnac, H. Delagrange, S. Zhou, A. Baldisseri, Y. S. Kim, C. P. Singh, B. M. Johnson, C. Suire, J. Sziklai, Brian Cole, Saskia Mioduszewski, S. Takagi, K. N. Barish, Yves Roland Schutz, J. Jin, E. M. Takagui, T. J. Uam, M. L. Brooks, R. S. Towell, Akio Kiyomichi, Marie Germain, A. G. Litvinenko, A. Kozlov, G. R. Young, R. Seto, K. Haruna, V. Dzhordzhadze, N. Kurihara, X. He, O. O. Omiwade, V. Peresedov, H. Masui, A. K. Dubey, M. G. Hur, C. Y. Chi, K. Tanida, V. I. Kochetkov, J. Murata, Gerd Joachim Kunde, I. Shein, A. Deshpande, Y. Watanabe, I. Younus, A. Soldatov, M. Naglis, C. L. Silva, Masayasu Ishihara, Susumu Sato, M. Muniruzzaman, and F. Staley

Subjects
Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Scattering, media_common.quotation_subject, 01 natural sciences, 7. Clean energy, Helicity, Asymmetry, Gluon, Nuclear physics, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Perturbation theory (quantum mechanics), PHENIX detector, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, media_common
Abstract

We present an improved measurement of the double helicity asymmetry for pi(0) production in polarized proton-proton scattering at root s=200 GeV employing the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). The improvements to our previous measurement come from two main factors: Inclusion of a new data set from the 2004 RHIC run with higher beam polarizations than the earlier run and a recalibration of the beam polarization measurements for the earlier run, which resulted in reduced uncertainties and increased beam polarizations. The results are compared to a Next to Leading Order (NLO) perturbative Quantum Chromodynamics (pQCD) calculation with a range of polarized gluon distributions.

Published
2006
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19. Jet structure from dihadron correlations ind+Aucollisions atsNN=200GeV

Author

Charles Maguire, S. Leckey, J. T. Mitchell, I. Tserruya, B. Khachaturov, J. G. Boissevain, Vladislav Manko, Masashi Kaneta, Josh Moss, T. Matsumoto, K. Katou, Yu. Efremenko, K. Hasuko, E. Kistenev, Ch. Finck, Jason Newby, G. B. Kim, R. S. Towell, J. M. Burward-Hoy, T. Chujo, X. Camard, Hiroyuki Okada, S. Batsouli, C. Pinkenburg, Akio Kiyomichi, Joakim Nystrand, D. E. Fields, N. N. Ajitanand, M. Stepanov, Takahiro Nakamura, B. V. Jacak, A. Durum, D. S. Brown, Maya Hachiya Shimomura, Y. J. Kwon, X. He, A. K. Purwar, Christine Angela Aidala, H. Pei, G. Roche, Hirohiko Sato, Martin Purschke, J. Velkovska, S. F. Pate, Y. Watanabe, P. L. McGaughey, Y. I. Makdisi, L. Sanfratello, V. Peresedov, M. Issah, C. Y. Chi, Y. J. Mao, E. J. Desmond, S. Kametani, Pàl Hidas, E. Vznuzdaev, Alexander Milov, T. L. Thomas, Jean-Pierre Cussonneau, K. Ozawa, H. J. Kim, M. J. Tannenbaum, R. Kohara, M. Gonin, V.N. Penev, H. Kobayashi, M. Togawa, J. Park, Florian Bauer, J. H. Kang, J. S. Haggerty, A. Romana, H. Masui, O. Drapier, E. R. Kinney, D. P. Morrison, V. Bumazhnov, M. P. Comets, D. Kotchetkov, M. T. Bjorndal, A. Soldatov, K. Tanida, V. I. Kochetkov, B. D. Fox, R. A. Soltz, V. V. Ikonnikov, V-N. Tram, A. Ster, Z. Fraenkel, Saskia Mioduszewski, X. R. Wang, A. Devismes, F. Kajihara, S. Bathe, Wei Xie, V. E. Semenov, J. Zimányi, V. Papavassiliou, Sébastien Gadrat, Y. Tsuchimoto, Robert F. Hobbs, Jen-Chieh Peng, Y. Tanaka, Anders Nils Erik Oskarsson, Gerd Joachim Kunde, Y. Akiba, I. Shein, Ryugo S. Hayano, D. Bucher, T. K. Shea, H. Delagrange, A. Deshpande, A. P.T. Palounek, R. K. Choudhury, I. E. Yushmanov, M. Grosse Perdekamp, T. Ichihara, S. Zhou, S. Takagi, C. H. Kuberg, J. Chiba, S. Belikov, K. S. Joo, P. Tarján, Motoi Inaba, Y. Riabov, Kenta Shigaki, M. Heffner, S. P. Stoll, A. Pierson, Yves Roland Schutz, K. N. Barish, J. Gosset, Dong Jo Kim, S. Nagamiya, Kazuhiro Tanaka, Alexei Khanzadeev, J. P. Sullivan, W. C. Chang, Kensuke Homma, G. C. Mishra, A. Taranenko, Osamu Jinnouchi, Alberto Baldisseri, S. Sawada, D. Pal, M. Chiu, Ajit Kumar Mohanty, Roy A. Lacey, Mate Csanad, Takao Sakaguchi, N. Bruner, A. Franz, T. A. Shibata, S. Chernichenko, H. Lim, E. M. Takagui, C. Klein-Boesing, A. S. Nyanin, F. K. Wohn, Matthew G. Reuter, B. Bassalleck, K. Kurita, H. Pereira, Klaus Johannes Reygers, A. D. Frawley, S. S.E. Rosendahl, G. Bunce, David Olle Rickard Silvermyr, S. Butsyk, B. Espagnon, Vladimir Samsonov, S. Esumi, Minghui Liu, M. Konno, T. J. Uam, B. M. Johnson, Stacey Sörensen, D. Isenhower, S. H. Aronson, David D'Enterria, I. D. Ojha, Alexander Malakhov, German Martinez, S. Yokkaichi, Kenneth Francis Read, J. M. Heuser, L. Aphecetche, M. L. Brooks, Takeo Kawabata, M. C. McCain, W. Holzmann, S. C. Johnson, C. L. Silva, R. P. Pisani, Sean A. Kelly, Viktor Veszpremi, M. J. Kweon, Brian Cole, Tamas Ferenc Csorgo, A. V. Kazantsev, Marie Germain, Nikolay Tyurin, Y. Le Bornec, J. L. Nagle, W. A. Zajc, T. E. Miller, Masayasu Ishihara, K. Das, D. Jouan, A. G. Litvinenko, R. Santo, Susumu Sato, E. P. Hartouni, M. A. Volkov, I. V. Sourikova, H. Torii, L. S. Zolin, B. Komkov, M. Muniruzzaman, Hans-Åke Gustafsson, S. Afanasiev, V. Baublis, K. Aoki, A. Denisov, V. Cianciolo, F. Staley, A. Kozlov, R. Seto, Senta Greene, Norio Saito, M. A. L. Leite, Atsushi Taketani, Yoichiro Fukao, W. J. Park, T. C. Awes, V. Dzhordzhadze, E. O'Brien, Sergey Fokin, H. W. Van Hecke, Jun Kikuchi, V. Babintsev, Evert Anders Stenlund, P. D. Barnes, A. Yanovich, A. G. Hansen, Shingo Sakai, Hiroaki Ohnishi, C. A. Ogilvie, E. H. Kim, T. Horaguchi, A. Kiss, T. K. Hemmick, S. Y. Fung, Henner Buesching, A. Hoover, C. L. Woody, Yasuo Miake, J. M. Qualls, P. Chand, John Hill, K. Oyama, L. Kochenda, Toru Sugitate, L. D. Isenhower, S. S. Adler, G. S. Kyle, Xingguo Li, C. Zhang, J. L. Drachenberg, François Fleuret, Ferenc Deák, N. Willis, James Alexander, S. N. White, N. Kamihara, F. Matathias, R. Averbeck, Byung-Sik Hong, R. Armendariz, W. E. Sondheim, A. Drees, A. Bazilevsky, J. G. Lajoie, T. Hachiya, Viktor Riabov, Ingvar Otterlund, Philippe Rosnet, I. J. Choi, Alexandre Lebedev, O. Dietzsch, Dipanwita Dutta, D. M. Lee, Xiaopeng Zong, M. Rosati, M. Velkovsky, A. A. Vinogradov, Henrik Tydesjö, Jiangyong Jia, Y. Goto, V. S. Pantuev, M. Harvey, Junji Tojo, K. Okada, H. En'yo, P. Constantin, M. J. Leitch, K. S. Sim, H. Hiejima, N. Grau, P. W. Stankus, K. Imai, Jan Rak, M. Inuzuka, Hideki Hamagaki, G. David, R. Granier de Cassagnac, P. J. Kroon, Anne Marie Sickles, D. Mukhopadhyay, Y. Cobigo, I. Ravinovich, A. Isupov, S. S. Ryu, G. R. Young, Ahmed Al-Jamel, J. E. Frantz, Herve Borel, A. Glenn, and V. L. Rykov

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Particle number, 010308 nuclear & particles physics, Scattering, Hadron, Parton, Nuclear matter, 01 natural sciences, 7. Clean energy, Nuclear physics, Fragmentation (mass spectrometry), Deuterium, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract

Dihadron correlations at high transverse momentum p(T) in d+Au collisions at root s(NN)=200 GeV at midrapidity are measured by the PHENIX experiment at the Relativistic Heavy Ion Collider. From these correlations, we extract several structural characteristics of jets: the root-mean-squared transverse momentum of fragmenting hadrons with respect to the jet root , the mean sine-squared of the azimuthal angle between the jet axes , and the number of particles produced within the dijet that are associated with a high-p(T) particle (dN/dx(E) distributions). We observe that the fragmentation characteristics of jets in d+Au collisions are very similar to those in p+p collisions and that there is little dependence on the centrality of the d+Au collision. This is consistent with the nuclear medium having little influence on the fragmentation process. Furthermore, there is no statistically significant increase in the value of from p+p to d+Au collisions. This constrains the effect of multiple scattering that partons undergo in the cold nuclear medium before and after a hard collision.

Published
2006
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20. J/ψProduction and Nuclear Effects ford+Auandp+pCollisions atsNN=200 GeV

Author

M. Grosse Perdekamp, A. Pierson, David Olle Rickard Silvermyr, Sean A. Kelly, Viktor Veszpremi, A. Devismes, Senta Greene, F. Kajihara, V. Bumazhnov, M. P. Comets, E. O'Brien, Martin Purschke, H. Delagrange, Y. J. Mao, Robert F. Hobbs, S. Kametani, Charles Maguire, S. Leckey, J. T. Mitchell, Maya Hachiya Shimomura, S. Zhou, S. Esumi, Alexei Khanzadeev, P. Tarján, A. Kiss, J. E. Frantz, D. Kotchetkov, D. E. Fields, B. V. Jacak, Josh Moss, Pàl Hidas, J. H. Kang, J. S. Haggerty, A. Romana, M. Chiu, Ajit Kumar Mohanty, N. Bruner, E. Stenlund, Y. Watanabe, W. C. Chang, Y. I. Makdisi, Z. Fraenkel, T. A. Shibata, T. L. Thomas, A. K. Purwar, W. A. Zajc, Roy A. Lacey, Herve Borel, S. S. Adler, G. S. Kyle, Vladislav Manko, R. Kohara, Henner Buesching, S. Y. Fung, S. Sawada, A. Franz, N. Willis, James Alexander, S. Butsyk, A. Glenn, C. L. Woody, E. Kistenev, V. Baublis, K. Aoki, Vladimir Samsonov, A. Denisov, I. Otterlund, V-N. Tram, D. Isenhower, V. Cianciolo, R. K. Choudhury, P. Chand, K. S. Sim, J. M. Burward-Hoy, T. Chujo, M. Gonin, V.N. Penev, K. Kurita, H. Pereira, German Martinez, X. Camard, B. Khachaturov, A. Soldatov, S. P. Stoll, K. Tanida, V. L. Rykov, N. N. Ajitanand, Ryugo S. Hayano, A. V. Kazantsev, L. Aphecetche, Takeo Kawabata, S. Belikov, K. S. Joo, M. C. McCain, Sergey Fokin, Y. J. Kwon, H. Hiejima, B. Espagnon, S. S.E. Rosendahl, Motoi Inaba, V. I. Kochetkov, R. S. Towell, T. Matsumoto, Takahiro Nakamura, K. Hasuko, R. Averbeck, Byung-Sik Hong, Tamas Ferenc Csorgo, Christine Angela Aidala, T. E. Miller, John Hill, K. Oyama, E. T. Atomssa, G. Bunce, I. Ravinovich, M. Rosati, T. Horaguchi, A. Bazilevsky, Mate Csanad, L. Sanfratello, Akio Kiyomichi, R. Santo, J. L. Nagle, A. Hoover, M. J. Tannenbaum, Hiroyuki Okada, J. L. Drachenberg, H. Kobayashi, Gerd Joachim Kunde, A. Durum, Y. Riabov, M. Velkovsky, Philippe Rosnet, S. Bathe, Joakim Nystrand, K. Ozawa, K. Imai, Agneta Oskarsson, I. Shein, V. V. Ikonnikov, D. S. Brown, D. Jouan, H. Pei, S. P. Sorensen, Kenta Shigaki, A. Isupov, S. S. Ryu, Toru Sugitate, Kensuke Homma, L. D. Isenhower, S. Afanasiev, A. Ster, V. S. Pantuev, Alberto Baldisseri, Y. Akiba, A. A. Vinogradov, Ferenc Deák, N. Kamihara, Henrik Tydesjö, Alexandre Lebedev, J. G. Boissevain, David D'Enterria, Yoichiro Fukao, S. Chernichenko, Jan Rak, S. Nagamiya, H. A. Gustafsson, Kazuhiro Tanaka, F. Matathias, R. Armendariz, M. Harvey, H. Lim, D. Bucher, Junji Tojo, T. C. Awes, Jiangyong Jia, S. C. Johnson, D. M. Lee, Y. Goto, J. G. Lajoie, Masashi Kaneta, K. Katou, R. Granier de Cassagnac, Xiaopeng Zong, Jun Kikuchi, Klaus Johannes Reygers, B. Bassalleck, T. Hachiya, M. Inuzuka, Hideki Hamagaki, M. J. Kweon, A. S. Nyanin, G. David, C. L. Silva, A. Drees, Y. Le Bornec, K. Okada, C. H. Kuberg, M. Konno, R. P. Pisani, J. Chiba, C. Pinkenburg, Masayasu Ishihara, M. A. Volkov, Ahmed Al-Jamel, Ch. Finck, Nikolay Tyurin, M. Heffner, P. L. McGaughey, C. Zhang, C. Y. Chi, H. En'yo, Susumu Sato, P. Constantin, M. J. Leitch, A. Taranenko, M. Muniruzzaman, G. C. Mishra, Jason Newby, S. F. Pate, H. J. Kim, I. J. Choi, Hiroaki Ohnishi, François Fleuret, F. Staley, C. A. Ogilvie, M. Stepanov, E. H. Kim, G. Roche, Takao Sakaguchi, T. K. Hemmick, Atsushi Taketani, Yasuo Miake, C. Klein-Boesing, J. Gosset, J. P. Sullivan, J. M. Qualls, Anne Marie Sickles, A. D. Frawley, S. N. White, X. R. Wang, N. Grau, M. T. Bjorndal, L. Kochenda, E. J. Desmond, Viktor Riabov, Jean-Pierre Cussonneau, M. Issah, M. Togawa, S. H. Aronson, V. Papavassiliou, J. Park, Florian Bauer, S. Yokkaichi, J. M. Heuser, G. R. Young, Sébastien Gadrat, W. Holzmann, P. W. Stankus, A. G. Hansen, Shingo Sakai, Y. Tsuchimoto, E. Vznuzdaev, Saskia Mioduszewski, S. Batsouli, Minghui Liu, I. E. Yushmanov, Y. Tanaka, Xingguo Li, W. E. Sondheim, T. K. Shea, Kenneth Francis Read, P. J. Kroon, O. Dietzsch, H. W. Van Hecke, B. Komkov, D. Mukhopadhyay, T. Ichihara, Jen-Chieh Peng, Wei Xie, B. D. Fox, F. K. Wohn, A. Deshpande, Yves Roland Schutz, Y. Cobigo, Norio Saito, M. A. L. Leite, Dipanwita Dutta, A. P.T. Palounek, D. Pal, E. M. Takagui, K. Das, E. P. Hartouni, V. Babintsev, Dong Jo Kim, Osamu Jinnouchi, B. M. Johnson, Brian Cole, I. Tserruya, Yu. Efremenko, G. B. Kim, Hirohiko Sato, Marie Germain, J. Velkovska, A. G. Litvinenko, A. Kozlov, R. Seto, Alexander Milov, V. Dzhordzhadze, S. Takagi, K. N. Barish, T. J. Uam, M. L. Brooks, O. Drapier, X. He, V. Peresedov, E. R. Kinney, D. P. Morrison, H. Masui, V. E. Semenov, J. Zimányi, Matthew G. Reuter, I. D. Ojha, Alexander Malakhov, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, I. V. Sourikova, H. Torii, and R. A. Soltz

Subjects
Physics, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, General Physics and Astronomy, Deep inelastic scattering, 01 natural sciences, Gluon, Nuclear physics, Deuterium, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Production (computer science), Rapidity, Absorption (logic), Nuclear Experiment, 010306 general physics
Abstract

J/{psi} production in d+Au and p+p collisions at {radical}(s{sub NN})=200 GeV has been measured by the PHENIX experiment at rapidities -2.2

Published
2006
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21. Jet structure of baryon excess in Au+Au collisions atsNN=200GeV

Author

Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, A. S. Nyanin, Maya Hachiya Shimomura, Sean A. Kelly, Alexander Milov, Y. I. Makdisi, A. G. Hansen, Viktor Veszpremi, O. Drapier, H. Kobayashi, E. R. Kinney, C. L. Woody, A. Lebedev, A. V. Kazantsev, Kensuke Homma, I. V. Sourikova, S. Bathe, H. Torii, D. P. Morrison, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, Agneta Oskarsson, V. E. Semenov, M. J. Tannenbaum, Hiroaki Ohnishi, J. Milan, V. V. Ikonnikov, K. Kiyoyama, Anne Marie Sickles, I. Ravinovich, B. Komkov, J. Zimányi, Y. Berdnikov, B. K. Nandi, B. Khachaturov, Y. Akiba, Senta Greene, M. Nara, Y. Liu, N. Grau, S. Nagamiya, Kazuhiro Tanaka, A. Deshpande, D. Bucher, S. Batsouli, F. Plasil, Norio Saito, M. A. L. Leite, J. M. Qualls, D. Isenhower, T. Matsumoto, K. Hasuko, I. Tserruya, Yu. Efremenko, V. Singh, D. E. Fields, Klaus Johannes Reygers, B. V. Jacak, S. Butsyk, German Martinez, E. J. Desmond, S. Y. Fung, Vladimir Samsonov, E. O'Brien, H. Borel, M. Germain, Jean-Pierre Cussonneau, I. Otterlund, G. R. Young, P. W. Stankus, Motoi Inaba, E. Melnikov, Soren Pontoppidan Sorensen, V. S. Pantuev, J. Gosset, A. Isupov, S. S. Ryu, G. B. Kim, D. Koehler, M. Grosse Perdekamp, A. K. Purwar, M. Togawa, M. A. Volkov, Joakim Nystrand, J. Chiba, M. Hibino, M. Sakai, J. P. Sullivan, J. Park, M. Harvey, Florian Bauer, L. Aphecetche, Takeo Kawabata, M. C. McCain, V. Babintsev, R. S. Towell, R. A. Soltz, A. P.T. Palounek, S. Chernichenko, S. Garpman, A. Pierson, T. E. Miller, Hirohiko Sato, S. Afanasiev, A. Ster, Jan Rak, G. C. Mishra, H. Pereira, H. Lim, Takao Sakaguchi, Junji Tojo, John Hill, K. Oyama, W. Guryn, T. Nakamura, S. K. Tuli, Tamas Ferenc Csorgo, S. Zhou, Y. Mao, R. Santo, Yoichiro Fukao, A. Enokizono, H. A. Gustafsson, Y. Tsuchimoto, Mate Csanad, H. Masui, Xingguo Li, B. Bassalleck, F. Mühlbacher, R. Granier de Cassagnac, Jen-Chieh Peng, J. L. Nagle, C. Klein-Boesing, A. D. Frawley, N. N. Ajitanand, L. Ewell, Toru Sugitate, L. D. Isenhower, R. E. Mischke, M. Konno, David Olle Rickard Silvermyr, K. Okada, Ahmed Al-Jamel, C. A. Ogilvie, R. Amirikas, T. K. Hemmick, F. Messer, M. Inuzuka, H. W. Van Hecke, I. E. Yushmanov, M. Heffner, T. Kohama, S. H. Aronson, H. En'yo, W. W. Kinnison, P. Constantin, M. E. Sadler, M. J. Leitch, J. E. Frantz, J. T. Mitchell, Dong Jo Kim, H. Tsuruoka, J. Simon-Gillo, Hideki Hamagaki, G. David, C. H. Kuberg, Yasuo Miake, A. Devismes, Osamu Jinnouchi, Alexei Khanzadeev, W. Holzmann, N. Bruner, E. Stenlund, M. Issah, A. Durum, David D'Enterria, E. Vznuzdaev, V. Ladygin, M. Gonin, V.N. Penev, Shih-Chang Lee, K. S. Sim, Viktor Riabov, F. Kajihara, H. Delagrange, X. R. Wang, T. Shiina, S. Esumi, S. Sakai, N. Hayashi, T. C. Awes, Kyoichiro Ozawa, Vladislav Manko, A. Kiss, A. Taranenko, G. Gogiberidze, Henner Buesching, W. A. Zajc, M. D. Marx, R. P. Pisani, D. S. Brown, François Fleuret, C. Y. Chi, A. Glenn, K. Kurita, S. Yokkaichi, J. M. Heuser, Jun Kikuchi, X. Zong, M. Sivertz, Nikolay Tyurin, Y. J. Kwon, T. Chujo, L. Sanfratello, M. Kopytine, J. G. Boissevain, V. Bumazhnov, M. P. Comets, L. Kochenda, V. Baublis, K. Aoki, A. Denisov, S. Borenstein, H. Hiejima, X. Camard, J. S. Chai, Y. Watanabe, V. L. Rykov, Y. Yang, Do-Won Kim, P. J. Kroon, V. Cianciolo, Dong-Hun Kim, A. Baldisseri, P. Chand, S. N. White, C. P. Singh, K. Katou, A. Parmar, Y. Kuroki, W. Y. Jang, B. M. Johnson, K. Imai, P. L. McGaughey, J. L. Drachenberg, Christine Angela Aidala, A. Kiyomichi, Sergey Fokin, C. Pinkenburg, J. M. Burward-Hoy, S. P. Sorensen, R. Kohara, Peter M. Nilsson, M. Stepanov, G. Roche, S. Kametani, P. Tarján, T. Horaguchi, A. Hoover, W. C. Chang, J. H. Kang, Pàl Hidas, J. G. Lajoie, R. Azmoun, J. S. Haggerty, T. Peitzmann, Roy A. Lacey, T. Hachiya, Saskia Mioduszewski, C. Zhang, A. Romana, M. T. Bjorndal, Minghui Liu, W. E. Sondheim, D. Mukhopadhyay, I. J. Choi, Yves Roland Schutz, S. P. Stoll, Kenneth Francis Read, D. Pal, Y. Cobigo, E. M. Takagui, V. N. Tram, T. Ichihara, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, S. S.E. Rosendahl, G. Bunce, Ch. Finck, Jason Newby, I. D. Ojha, A. Soldatov, Alexander Malakhov, J. Murata, L. S. Zolin, W. J. Park, D. Jouan, P. D. Barnes, A. Yanovich, Ferenc Deák, N. Kamihara, F. Matathias, R. Armendariz, C. L. Silva, A. Drees, Masayasu Ishihara, Susumu Sato, M. Muniruzzaman, F. Staley, K. Tanida, V. I. Kochetkov, S. Takagi, Gerd Joachim Kunde, I. Shein, K. N. Barish, M. Ono, T. J. Uam, M. L. Brooks, E. H. Kim, S. S. Adler, G. S. Kyle, N. Willis, James Alexander, Y. Jeong, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Philippe Rosnet, D. M. Lee, A. G. Litvinenko, A. Kozlov, R. Seto, B. A. Cole, S. F. Pate, V. Dzhordzhadze, X. He, V. Peresedov, Martin Purschke, V. Papavassiliou, Sébastien Gadrat, O. Dietzsch, Charles Maguire, S. Leckey, H. Okada, R. du Rietz, Josh Moss, D. Kotchetkov, S. Bhagavatula, B. D. Fox, M. Tamai, E. Kistenev, Dipanwita Dutta, K. A. Drees, Julia Velkovska, M. Rosati, Z. Fraenkel, M. Velkovsky, H. Pei, J. B. Choi, A. A. Vinogradov, K. Das, Henrik Tydesjö, E. P. Hartouni, Jiangyong Jia, Y. Goto, Robert F. Hobbs, R. K. Choudhury, S. C. Johnson, M. J. Kweon, Y. Le Bornec, H. J. Kim, S. Sawada, J. D. Tepe, A. Franz, S. S. Kapoor, L. Villatte, B. Espagnon, W. Xie, Atsushi Taketani, V.A. Onuchin, S. Belikov, K. S. Joo, Y. Tanaka, T. K. Shea, M. Kaneta, K. El Chenawi, M. R. Shaw, and T. L. Thomas

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, 7. Clean energy, 01 natural sciences, Baryon, Nuclear physics, Deuterium, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract

Two particle correlations between identified meson and baryon trigger particles with 2.5

Published
2005
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22. Double Helicity Asymmetry in Inclusive Midrapidityπ0Production for Polarizedp+pCollisions ats=200 GeV

Author

S. Y. Fung, Alexander Milov, G. C. Mishra, H. Pereira, R. A. Soltz, H. Borel, Marie Germain, John Hill, K. Oyama, O. Drapier, E. R. Kinney, A. Devismes, Toru Sugitate, V. S. Pantuev, D. P. Morrison, M. Grosse Perdekamp, L. D. Isenhower, S. F. Pate, V. E. Semenov, J. Zimányi, F. Kajihara, P. J. Kroon, Takao Sakaguchi, D. Isenhower, H. Delagrange, O. Dietzsch, S. Butsyk, Vladimir Samsonov, A. Pierson, X. R. Wang, Y. Mao, C. Klein-Boesing, M. Harvey, V-N. Tram, A. Kozlov, B. Komkov, R. Seto, Ferenc Deák, V. Papavassiliou, Sébastien Gadrat, Norio Saito, N. Kamihara, S. Afanasiev, A. Ster, S. Kametani, Pàl Hidas, Dipanwita Dutta, I. Otterlund, A. Bazilevsky, V. Dzhordzhadze, S. Zhou, François Fleuret, Robert F. Hobbs, J. H. Kang, M. A. L. Leite, F. Matathias, R. Armendariz, A. D. Frawley, Junji Tojo, A. Baldisseri, Kensuke Homma, David Olle Rickard Silvermyr, S. Sawada, A. Franz, A. V. Kazantsev, J. S. Haggerty, A. Romana, Hiroaki Ohnishi, B. M. Johnson, B. D. Fox, A. G. Hansen, Tamas Ferenc Csorgo, I. Tserruya, A. Drees, Yu. Efremenko, K. Okada, O. Zaudtke, Shingo Sakai, H. En'yo, P. Constantin, M. J. Leitch, Motoi Inaba, H. Pei, S. Chernichenko, S. Takagi, H. Lim, S. H. Aronson, Alexei Khanzadeev, J. M. Qualls, S. N. White, N. Bruner, E. Stenlund, K. N. Barish, S. Belikov, K. S. Joo, J. L. Nagle, A. Litvinenko, M. A. Volkov, M. Rosati, G. B. Kim, M. Heffner, M. Inuzuka, B. Bassalleck, Hideki Hamagaki, G. David, N. N. Ajitanand, A. Isupov, Mate Csanad, M. Konno, W. Holzmann, C. L. Silva, Y. Fukao, V. Babintsev, M. Velkovsky, C. A. Ogilvie, J. Gosset, T. J. Uam, Bruno Espagnon, A. Taranenko, T. K. Hemmick, Brian Cole, T. L. Thomas, Yasuo Miake, T. C. Awes, Jun Kikuchi, A. A. Vinogradov, A. Kiss, J. P. Sullivan, Hirohiko Sato, Henrik Tydesjö, Takahiro Nakamura, Masayasu Ishihara, K. Das, Xingguo Li, J. L. Drachenberg, X. Zong, Jiangyong Jia, Y. Goto, J. Velkovska, Maya Hachiya Shimomura, Y. I. Makdisi, V. Bumazhnov, M. P. Comets, E. P. Hartouni, Saskia Mioduszewski, D. Mukhopadhyay, Jen-Chieh Peng, David D'Enterria, Y. Cobigo, M. L. Brooks, X. He, Ryugo S. Hayano, B. Khachaturov, Y. Riabov, Susumu Sato, N. Grau, V. Peresedov, Henner Buesching, I. Ravinovich, S. P. Sorensen, P. L. McGaughey, W. E. Sondheim, M. T. Bjorndal, R. P. Pisani, L. Zolin, R. Kohara, V. L. Rykov, T. Matsumoto, Kenta Shigaki, P. W. Stankus, S. P. Stoll, Nikolay Tyurin, S. Yokkaichi, A. Durum, Yves Roland Schutz, J. M. Burward-Hoy, M. Muniruzzaman, F. Staley, K. Tanida, J. M. Heuser, T. Ichihara, J. G. Lajoie, Xiao-yan Li, K. Hasuko, P. Chand, V. I. Kochetkov, T. Hachiya, D. S. Brown, P. Tarján, S. S. Ryu, Dong Jo Kim, S. S.E. Rosendahl, G. Bunce, Osamu Jinnouchi, H. Masui, J. T. Mitchell, Y. J. Kwon, M. J. Tannenbaum, W. C. Chang, F. K. Wohn, Matthew G. Reuter, I. J. Choi, Steven Kelly, Minghui Liu, D. Jouan, L. Sanfratello, S. S. Adler, A. S. Nyanin, G. S. Kyle, Hiroyuki Okada, M. Gonin, Roy A. Lacey, V.N. Penev, Vladislav Manko, N. Willis, James Alexander, V. V. Ikonnikov, Kenneth Francis Read, D. Bucher, J. G. Boissevain, I. D. Ojha, D. Pal, R. Averbeck, Byung-Sik Hong, Joakim Nystrand, D. E. Fields, Gerd Joachim Kunde, B. V. Jacak, Alexander Malakhov, Masashi Kaneta, K. Kurita, Philippe Rosnet, S. C. Johnson, K. Katou, T. Chujo, X. Camard, Alexandre Lebedev, E. M. Takagui, I. Shein, D. M. Lee, M. J. Kweon, Ahmed Al-Jamel, R. S. Towell, A. K. Purwar, A. Kiyomichi, C. L. Woody, W. J. Park, Christine Angela Aidala, C. Pinkenburg, Ch. Finck, P. D. Barnes, Jason Newby, A. Yanovich, J. E. Frantz, Y. Le Bornec, M. Stepanov, G. Roche, E. J. Desmond, Jean-Pierre Cussonneau, M. Togawa, J. Park, Florian Bauer, Y. Tsuchimoto, I. E. Yushmanov, H. W. Van Hecke, H. Kobayashi, A. Glenn, S. Bathe, Y. Watanabe, Agneta Oskarsson, I. V. Sourikova, H. Torii, Y. Akiba, C. Y. Chi, S. Nagamiya, Kazuhiro Tanaka, Klaus Johannes Reygers, E. Kim, A. Soldatov, Atsushi Taketani, Martin Purschke, D. Kotchetkov, Z. Fraenkel, R. K. Choudhury, Takahiro Kawabata, Y. Tanaka, T. K. Shea, S. Esumi, W. A. Zajc, K. Aoki, A. Denisov, V. Cianciolo, H. J. Kim, Sergey Fokin, T. Horaguchi, A. Hoover, S. Batsouli, Charles Maguire, S. Leckey, M. Issah, Josh Moss, E. Kistenev, A. P.T. Palounek, H. A. Gustafsson, E. Vznuzdaev, V. Baublis, C. Zhang, Viktor Riabov, K. S. Sim, L. Aphecetche, M. C. McCain, H. Hiejima, K. Imai, Jan Rak, R. Granier de Cassagnac, Wei Xie, K. Ozawa, A. Deshpande, Anne Marie Sickles, G. R. Young, Viktor Veszpremi, Senta Greene, E. O'Brien, T. E. Miller, R. Santo, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, German Martinez, C. H. Kuberg, and J. Chiba

Subjects
Quantum chromodynamics, Physics, Particle physics, Proton, 010308 nuclear & particles physics, media_common.quotation_subject, Nuclear Theory, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Helicity, Asymmetry, Gluon, law.invention, Nuclear physics, law, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Collider, Spin-½, media_common
Abstract

We present a measurement of the double longitudinal spin asymmetry in inclusive pi(0) production in polarized proton-proton collisions at roots=200 GeV. The data were taken at the Relativistic Heavy Ion Collider with average beam polarizations of 0.27. The measurements are the first in a program to study the longitudinal spin structure of the proton, using strongly interacting probes, at collider energies. The asymmetry is presented for transverse momenta 1-5 GeV/c at midrapidity, where next-to-leading-order perturbative quantum chromodynamic (NLO pQCD) calculations well describe the unpolarized cross section. The observed asymmetry is small and is compared to a NLO pQCD calculation with a range of polarized gluon distributions.

Published
2004
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23. Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration

Author

M. Pollack, N. Bruner, P. Steinberg, B. Khachaturov, Serguei Afanasiev, R. Lacey, T. Matsumoto, Y. Tanaka, N. N. Ajitanand, K. Hasuko, T. K. Shea, H. Kobayashi, K. Tanida, S. Bathe, Terry C Awes, V. I. Kochetkov, N. Starinsky, J. Chiba, Martin Purschke, F. Gastineau, A. A. Tsvetkov, D. Kotchetkov, Z. Fraenkel, Y. Berdnikov, E. R. Hartouni, J. Murata, R. K. Choudhury, Y. Akiba, A. Devismes, B. D. Fox, P. Pitukhin, M. Kann, Shih-Chang Lee, S. Botelho, Vladislav Manko, Lennart Osterman, S. Nagamiya, S. C. Johnson, S. Butsyk, Kazuhiro Tanaka, K. S. Sim, M. D. Marx, H. Tsuruoka, Klaus Johannes Reygers, Vladimir Samsonov, S. N. White, Marie Germain, M. J. Kweon, M. E. Sadler, Taku Gunji, M. Sakai, F. Kajihara, Hiroyuki Okada, Shunji Nishimura, E. J. Desmond, I. Shein, Y. Le Bornec, R. A. Soltz, H. Borel, Joakim Nystrand, H. Hara, T. Shohjoh, A. Durum, M. Wysocki, T. Peitzmann, H. Hiejima, A. G. Litvinenko, M. A. Volkov, M. Velkovsky, Atsushi Taketani, Jean-Pierre Cussonneau, I. Otterlund, M. Togawa, M. Hibino, A. Kiss, J. Park, H. Delagrange, Eva Haslum, O. Drapier, X. Camard, V.A. Onuchin, S. Belikov, K. S. Joo, I. Tserruya, Saskia Mioduszewski, Florian Bauer, D. S. Brown, H.-Å. Gustafsson, A. Parmar, T. C. Sangster, S. Esumi, Tamas Ferenc Csorgo, L. Paffrath, J. E. Frantz, Y. J. Kwon, J. Simon-Gillo, W. E. Sondheim, D. Sharma, W. C. Smith, L. Sanfratello, M. Messer, K. El Chenawi, M. R. Shaw, J. L. Nagle, Henner Buesching, M. Grosse Perdekamp, A. Kozlov, C. Velissaris, G. R. Young, Y. Tsuchimoto, S. F. Pate, M. Kopytine, K. Yagi, S. Zhou, A. Baldisseri, R. Seto, Zhedong Zhang, K. Haruna, M. S. Chung, G. C. Mishra, H. Pereira, R. Amirikas, I. Sibiriak, Laurent Bernard Aphecetche, Takao Sakaguchi, Y. Mao, Christine Angela Aidala, V-N. Tram, S. Borenstein, P. A. Rukoyatkin, W. A. Zajc, M. K. Lee, I. E. Yushmanov, H. Wang, Yves Roland Schutz, C. Pinkenburg, T. Kohama, V. Singh, B. R. Schlei, A. A. Vinogradov, Henrik Tydesjö, A. Deshpande, A. Pierson, F. G. Bellaiche, Y. S. Kim, Markus Merschmeyer, Anne Marie Sickles, V. Dzhordzhadze, A. Ster, V. Baublis, K. Aoki, P. Chand, Shiv K. Gupta, X. R. Wang, C. A. Ogilvie, A. Denisov, S. Y. Kim, V. Cianciolo, G. B. Kim, D. E. Fields, T. Ushiroda, B. V. Jacak, A. Glenn, T. Ichihara, S. T. Belyaev, V. S. Pantuev, O. Zaudkte, J. Jin, Steven E. Skutnik, X. He, O. O. Omiwade, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, D. Koehler, Motoi Inaba, E. Taniguchi, M. Chiu, Ajit Kumar Mohanty, V. Peresedov, E. M. Takagui, Ch. Finck, T. A. Shibata, Sergey Fokin, T. Horaguchi, A. Hoover, V. L. Rykov, T. Dahms, Y. Watanabe, K. Kiyoyama, M. Harvey, A. K. Purwar, T. A. Carey, H. J. Kim, T. K. Hemmick, Yasuo Miake, Junji Tojo, E. Melnikov, Y. Yang, K. Ebisu, C. P. Singh, I. D. Ojha, Alexander Malakhov, L. S. Zolin, Kenichi Imai, F. Messer, I. Younus, Jason Newby, C. Klein-Boesing, K. Okada, B. Sahlmueller, H. En'yo, W. W. Kinnison, P. Constantin, M. J. Leitch, S. Chernichenko, Mate Csanad, A. D. Frawley, T. Tabaru, L. Villatte, Juergen Thomas, A. Soldatov, B. K. Nandi, D. Isenhower, S. Bhagavatula, V. Papavassiliou, Sébastien Gadrat, Charles Maguire, V. Bumazhnov, M. P. Comets, I. Ravinovich, F. Plasil, Y. Nagata, B. M. Johnson, David Olle Rickard Silvermyr, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, Jiangyong Jia, Y. Goto, J. B. Choi, K. Das, Gerry Bunce, P. D. Barnes, S. Leckey, Jan Rak, W. Guryn, A. Yanovich, B. Komkov, H. Masui, A. K. Dubey, S. Takagi, Hirohiko Sato, S. K. Tuli, M. Konno, Y. Sumi, Wei Tian, T. Nakamura, Paul Nilsson, Zhongfan Liu, S. K. Mark, A. Isupov, S. Garpman, R. du Rietz, L. Kochenda, M. Heffner, An.A. Vorobyov, C. Suire, R. E. Mischke, J. Sziklai, S. S. Ryu, R. Granier de Cassagnac, S. Y. Fung, German Martinez, Robert F. Hobbs, K. N. Barish, M. Naglis, H. Qu, Y. Nakada, C. L. Silva, P. Tarján, L. L. Chavez, M. Ono, Josh Moss, W. C. Chang, Brian Cole, Jen-Chieh Peng, R. Vertesi, David D'Enterria, R. S. Towell, M. Tamai, E. Kistenev, John Hill, K. Oyama, J. H. Thomas, Y. Kuroki, Norio Saito, S. Markacs, Toru Sugitate, L. D. Isenhower, T. J. Uam, S. H. Aronson, W. Holzmann, Debashish Pal, T. E. Miller, Yasushi Nagasaka, Masayasu Ishihara, M. Inuzuka, M. N. Hagiwara, M. L. Brooks, Hideki Hamagaki, Ahmed Al-Jamel, S. Sawada, Paul Stankus, J. D. Tepe, G. David, J. Lauret, Aya Sakaguchi, Viktor Riabov, C. H. Kuberg, Susumu Sato, W. Y. Jang, A. Franz, H. M. Hur, T. Kawagishi, M. T. Bjorndal, M. Muniruzzaman, J. T. Mitchell, N. Kurihara, M. J. Bennett, R. Santo, Z. Li, A. Taranenko, Dong Jo Kim, G. Gogiberidze, N. Hayashi, S. S. Kapoor, Mikhail Ippolitov, A. Enokizono, François Fleuret, B. Forestier, Maya Hachiya Shimomura, F. Staley, S. Batsouli, D. Winter, D. Yu Peressounko, Sean A. Kelly, Osamu Jinnouchi, R. P. Pisani, Nikolay Tyurin, D. S. Ho, Viktor Veszpremi, M. Suzuki, T. V. Moukhanova, Yoshio Arai, Y. I. Makdisi, M. N. Wagner, P. Chung, K. Pope, H. W. Van Hecke, C. Y. Chi, H. Harada, R. Azmoun, J.R. Mahon, C. Zhang, O. Dietzsch, M. Sugioka, H. Valle, K. Adcox, Ferenc Deák, Dipanwita Dutta, N. Kamihara, M. C. McCain, M. Holmes, Athanasios Petridis, Y. Cobigo, Alexander Milov, Julia Velkovska, A. P.T. Palounek, C. R. Cleven, M. J. Tannenbaum, C. Witzig, V. V. Ikonnikov, Do-Won Kim, P. J. Kroon, F. Matathias, D. Mukhopadhyay, D. Bucher, E. R. Kinney, D. P. Morrison, V. Ladygin, M. Gonin, R. Armendariz, J. Barrette, V.N. Penev, Dong-Hun Kim, B. Espagnon, V. E. Semenov, V. Babintsev, Y. H. Shin, Marco Aurelio Lisboa Leite, J. Zimányi, T. Christ, Tatsuya Chujo, S. Klinksiek, N. Grau, Senta Greene, M. Nara, M. Sivertz, A. Drees, B. E. Norman, E. H. Kim, E. O'Brien, K. Shoji, Yongsun Kim, R. Kohara, Hiroaki Ohnishi, J. Milan, A. Hadjhenni, J. Egdemir, J. M. Qualls, L. Nikkinen, S. P. Stoll, S. S.E. Rosendahl, T. Ferdousi, D. Jouan, Xingguo Li, J. L. Drachenberg, J. G. Lajoie, T. Hachiya, I. J. Choi, Hiroyuki Sako, S. S. Adler, G. S. Kyle, S. Kametani, N. Willis, James Alexander, Pàl Hidas, J. H. Kang, J. S. Haggerty, A. Romana, Y. Jeong, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Philippe Rosnet, A. A. Rose, D. M. Lee, Anders Nils Erik Oskarsson, Z. Sun, J. Gosset, J. P. Sullivan, S. Yokkaichi, J. M. Heuser, J. G. Boissevain, Masashi Kaneta, K. Katou, A. Kiyomichi, M. Stepanov, G. Roche, K. Kurita, W. Park, A. G. Hansen, Shingo Sakai, H. Pei, T. L. Thomas, Ryugo S. Hayano, B. V. Dinesh, J. Chang, Y. Riabov, Kenta Shigaki, G. J. Kunde, M. Nguyen, A. S. Nyanin, E. Stenlund, C. L. Woody, A. Lebedev, I. V. Sourikova, H. Torii, D. J. Lim, Minghui Liu, Kenneth Francis Read, A. V. Kazantsev, Kensuke Homma, Soren Pontoppidan Sorensen, Yoichiro Fukao, Kyoichiro Ozawa, Jun Kikuchi, Tadaaki Isobe, Tai Sakuma, X. Zong, J. S. Chai, P. L. McGaughey, Yuri Efremenko, J. M. Burward-Hoy, A. L. Godoi, X. Liu, M. Issah, M. D. Malik, E. Vznuzdaev, T. Shiina, Yi Liu, M. Rosati, Takeo Kawabata, Akira Masaike, Johannes Peter Wessels, Wei Xie, Alexei Khanzadeev, 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), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), PHENIX, 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Elliptic flow, FOS: Physical sciences, Jet (particle physics), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Charged particle, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, State of matter, High Energy Physics::Experiment, PHENIX detector, Nuclear Experiment (nucl-ex), 010306 general physics, Relativistic Heavy Ion Collider, Jet quenching, Nuclear Experiment
Abstract

Extensive experimental data from high-energy nucleus-nucleus collisions were recorded using the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). The comprehensive set of measurements from the first three years of RHIC operation includes charged particle multiplicities, transverse energy, yield ratios and spectra of identified hadrons in a wide range of transverse momenta (p_T), elliptic flow, two-particle correlations, non-statistical fluctuations, and suppression of particle production at high p_T. The results are examined with an emphasis on implications for the formation of a new state of dense matter. We find that the state of matter created at RHIC cannot be described in terms of ordinary color neutral hadrons., Comment: 510 authors, 127 pages text, 56 figures, 1 tables, LaTeX. Submitted to Nuclear Physics A as a regular article; v3 has minor changes in response to referee comments. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

Published
2004
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24. Development of a data acquisition system for the SPHERE spectrometer

Author

S. G. Reznikov, Alexander Malakhov, I. Ivanov, V.N. Penev, P. K. Maniakov, V.A. Smirnov, I. Atanasov, A.S. Nikiforov, L. Dimitrov, I. Monov, V. A. Kuznetsov, and Yu.S. Anisimov

Subjects
Physics, Nuclear and High Energy Physics, Experimental control, Spectrometer, Workstation, Physics::Instrumentation and Detectors, business.industry, Multiprocessing, law.invention, Development (topology), Data acquisition, law, Data pre-processing, Nuclear Experiment, business, Instrumentation, Computer hardware, VMEbus
Abstract

The 4π-detector SPHERE for studying multiple particle cumulative production is currently under construction at the Laboratory of High Energies, JINR, Dubna. This paper briefly describes the present status and future developments of the data acquisition system for this setup. A multiprocessor system based on VMEbus will be implemented for parallel readout, event-building, and data preprocessing. A workstation will be used for data analysis and experimental control. The investigation has been performed at the Laboratory of High Energies, JINR.

Published
1995
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25. Absence of Suppression in Particle Production at Large Transverse Momentum insNN=200 GeVd+AuCollisions

Author

Ch. Finck, Jason Newby, Alexei Khanzadeev, N. Bruner, E. Stenlund, Maya Hachiya Shimomura, S. Nagamiya, E. J. Desmond, Jean-Pierre Cussonneau, M. Togawa, I. Tserruya, J. Park, Florian Bauer, Y. Tsuchimoto, J. L. Drachenberg, I. E. Yushmanov, S. C. Johnson, Y. I. Makdisi, S. S. Adler, B. D. Fox, G. S. Kyle, J. Gosset, V. S. Pantuev, Yu. Efremenko, C. L. Woody, R. A. Soltz, H. Borel, S. Afanasiev, A. Ster, S. Butsyk, N. Willis, James Alexander, Vladimir Samsonov, J. P. Sullivan, Mate Csanad, M. Grosse Perdekamp, N. Grau, R. Averbeck, S. P. Sorensen, Byung-Sik Hong, A. V. Kazantsev, I. Ravinovich, M. J. Kweon, N. N. Ajitanand, Y. Le Bornec, I. Otterlund, G. B. Kim, M. Harvey, Junji Tojo, A. Devismes, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, X. He, A. Bazilevsky, Ferenc Deák, N. Kamihara, L. Zolin, P. W. Stankus, Takahiro Nakamura, A. Pierson, M. J. Tannenbaum, S. S. Ryu, Jan Rak, R. Granier de Cassagnac, M. Issah, M. Heffner, S. Batsouli, B. Komkov, S. Yokkaichi, J. M. Heuser, J. T. Mitchell, K. Ozawa, V. Peresedov, E. Kim, F. Kajihara, Norio Saito, David D'Enterria, Ahmed Al-Jamel, F. Matathias, R. Armendariz, M. A. L. Leite, B. Khachaturov, K. Okada, H. En'yo, P. Constantin, M. J. Leitch, T. Matsumoto, V. V. Ikonnikov, Atsushi Taketani, J. G. Lajoie, Tamas Ferenc Csorgo, Hirohiko Sato, J. Velkovska, Vladislav Manko, R. P. Pisani, A. Durum, T. Hachiya, E. Vznuzdaev, J. L. Nagle, David Olle Rickard Silvermyr, H. Delagrange, Hiroyuki Okada, V. Baublis, Joakim Nystrand, H. W. Van Hecke, K. Das, V. Babintsev, A. Drees, D. S. Brown, Nikolay Tyurin, T. Chujo, Anne Marie Sickles, E. P. Hartouni, I. J. Choi, X. Camard, D. Bucher, V. Kochetkov, O. Dietzsch, A. Kiss, Jen-Chieh Peng, V. Bumazhnov, M. P. Comets, Y. Cobigo, C. L. Silva, I. V. Sourikova, Sean A. Kelly, H. Torii, V. L. Rykov, C. H. Kuberg, M. Gonin, Christine Angela Aidala, Y. Fukao, J. M. Burward-Hoy, J. E. Frantz, Viktor Veszpremi, J. Chiba, G. R. Young, P. J. Kroon, Henner Buesching, V.N. Penev, Dipanwita Dutta, Xiao-yan Li, D. E. Fields, P. Tarján, G. C. Mishra, J. G. Boissevain, Masashi Kaneta, B. V. Jacak, Y. J. Kwon, H. Pereira, W. C. Chang, H. J. Kim, P. Chand, S. Zhou, K. S. Sim, A. Glenn, K. Kurita, Takao Sakaguchi, Roy A. Lacey, M. T. Bjorndal, Dong Jo Kim, Osamu Jinnouchi, K. Katou, A. Baldisseri, L. Sanfratello, M. Rosati, Y. Mao, C. Klein-Boesing, R. Kohara, H. Hiejima, T. C. Awes, A. K. Purwar, M. Velkovsky, Wei Xie, Senta Greene, A. D. Frawley, Jun Kikuchi, V-N. Tram, K. Imai, Kensuke Homma, H. Kobayashi, A. Kiyomichi, C. Pinkenburg, S. Bathe, A. Deshpande, A. A. Vinogradov, Henrik Tydesjö, Hiroaki Ohnishi, S. H. Aronson, Alexander Milov, Agneta Oskarsson, M. Chiu, Ajit Kumar Mohanty, W. Holzmann, S. Chernichenko, H. Lim, E. O'Brien, T. A. Shibata, A. P.T. Palounek, J. M. Qualls, Jiangyong Jia, D. Pal, Y. Goto, B. Bassalleck, A. G. Hansen, Y. Akiba, Shingo Sakai, S. P. Stoll, M. Konno, Kazuhiro Tanaka, H. Pei, T. L. Thomas, M. Inuzuka, Minghui Liu, O. Drapier, Hideki Hamagaki, Klaus Johannes Reygers, G. David, E. R. Kinney, D. P. Morrison, M. Stepanov, G. Roche, S. Kametani, Kenneth Francis Read, Ryugo S. Hayano, Takahiro Kawabata, S. S.E. Rosendahl, Xingguo Li, G. Bunce, German Martinez, V. E. Semenov, Y. Riabov, Kenta Shigaki, X. Zong, K. Hasuko, J. Zimányi, A. S. Nyanin, Marie Germain, H. A. Gustafsson, P. L. McGaughey, T. E. Miller, D. Jouan, Pàl Hidas, H. Masui, J. H. Kang, R. Santo, A. Litvinenko, M. A. Volkov, A. Isupov, C. Zhang, C. A. Ogilvie, A. Taranenko, J. S. Haggerty, A. Romana, T. K. Hemmick, Yasuo Miake, Viktor Riabov, L. Aphecetche, S. Esumi, Y. Tanaka, M. C. McCain, W. A. Zajc, K. Aoki, A. Denisov, V. Cianciolo, Sergey Fokin, T. Horaguchi, A. Hoover, T. K. Shea, A. Kozlov, R. Seto, V. Dzhordzhadze, S. Takagi, K. N. Barish, T. Ichihara, F. K. Wohn, Matthew G. Reuter, I. D. Ojha, Alexander Malakhov, W. J. Park, P. D. Barnes, A. Yanovich, Charles Maguire, S. Y. Fung, S. Leckey, John Hill, K. Oyama, Toru Sugitate, L. D. Isenhower, François Fleuret, S. N. White, W. E. Sondheim, T. J. Uam, Josh Moss, D. Isenhower, Kiyoshi Tanida, M. L. Brooks, E. Kistenev, R. S. Towell, C. Y. Chi, Robert F. Hobbs, B. M. Johnson, S. Sawada, A. Franz, Y. Watanabe, B. Espagnon, Saskia Mioduszewski, S. F. Pate, S. Belikov, K. S. Joo, X. R. Wang, A. Soldatov, Yves Roland Schutz, D. Mukhopadhyay, V. Papavassiliou, Sébastien Gadrat, E. M. Takagui, B. A. Cole, Gerd Joachim Kunde, Martin Purschke, I. Shein, D. Kotchetkov, Z. Fraenkel, R. K. Choudhury, Susumu Sato, M. Muniruzzaman, and F. Staley

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hadron, General Physics and Astronomy, 01 natural sciences, High momentum, Spectral line, Nuclear physics, Pion, Yield (chemistry), 0103 physical sciences, Transverse momentum, Yield ratio, Particle, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract

Transverse momentum spectra of charged hadrons with p(T)

Published
2003
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26. Spin effects at fragmentation of polarized deuterons into cumulative pions

Author

S. V. Afanasiev, T. Iwata, V. V. Arkhipov, I. Daito, Shuji Fukui, A. Isupov, I. Rusanov, N. Doushita, Yu. K. Pilipenko, A. N. Khrenov, K. Kondo, A. G. Litvinenko, V.N. Penev, A. Wakai, Di. Kirillov, Alexander Malakhov, L. S. Zolin, P. A. Rukoyatkin, N. Horikawa, S. G. Reznikov, V. K. Bondarev, and V. P. Ladygin

Subjects
Physics, Particle physics, Hydrogen, Nuclear Theory, chemistry.chemical_element, Impulse (physics), Nuclear physics, Transverse plane, Pion, Fragmentation (mass spectrometry), chemistry, Deuterium, High Energy Physics::Experiment, Beryllium, Nuclear Experiment, Spin (physics)
Abstract

Tensor analyzing power T20 of the reaction dA→π(0°)X was measured in the fragmentation of 9 GeV deuterons into points with the momenta from 3.5 to 5.3 GeV/c at hydrogen, beryllium and carbon targets. This momentum range corresponds to region of cumulative pion production The values of T20 are found to be small and consistent with positive values in contradiction with the Impulse Approximation calculations based on assuming a direct mechanism of pion production (NN→NNπ). New data on tensor Ayy analyzing power for pion production at the non-zero angle (θπ=135,180mr) with pion transverse momenta up to Pt=0.8 GeV/c are presented. Ayy increases with rise of Pt in the cumulative region.

Published
2002
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27. Polarization at the Nuclotron

Author

V. M. Slepnev, V. I. Volkov, V. Angelov, L. V. Kutuzova, A. I. Valevich, A. Kovalenko, V. V. Fimushkin, Yu. K. Pilipenko, V. A. Michailov, V. P. Ershov, V.N. Penev, A. S. Belov, G. I. Gai, V. P. Vadeev, Alexander Malakhov, L. S. Zolin, and A. D. Stepanov

Subjects
Nuclear physics, Physics, Nuclotron, Atomic beam, Upgrade, Deuterium, Polarimetry, Physics::Accelerator Physics, Atomic physics, Nuclear Experiment, Polarization (waves), Superconducting accelerator, Beam (structure)
Abstract

The cryogenic source of polarized deuterons (↑D+) POLARIS operates at the Dubna 10 GeV accelerator synhrophasotron. There is a project to make a polarized beam at the new superconducting accelerator nuclotron to continue a spin physics program. It is supposed to use the atomic beam stage of the source POLARIS, to modify an existing ↑D+ charge exchange ionizer into ↑D− ionizer, to realize multiturn charge exchange injection in the nuclotron ring, to upgrade the polarimetry of low and high energy polarized beams. Description, parameters and some test results of the setups are presented.

Published
2001
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28. Spin effects at fragmentation of polarized deuterons into pions

Author

S. G. Reznikov, N. Doushita, P. A. Rukoyatkin, S. V. Afanasiev, A. Wakai, A. Isupov, N. Horikawa, V. A. Kashirin, A. N. Khrenov, V. K. Bondarev, V. P. Ladygin, Shuji Fukui, Alexander Malakhov, A. G. Litvinenko, V. V. Arkhipov, L. S. Zolin, Yu. K. Pilipenko, T. Iwata, I. Rusanov, K. Kondo, V.N. Penev, and I. Daito

Subjects
Nuclear physics, Physics, Particle physics, Transverse plane, Pion, Fragmentation (mass spectrometry), Deuterium, Nuclear Theory, High Energy Physics::Experiment, Impulse (physics), Nuclear Experiment, Nucleon, High momentum
Abstract

Tensor analyzing power T20 in dA→π(θ=0°)X has been measured at fragmentation of 9 GeV deuterons into pions with the momenta from 3.5 to 5.3 GeV/c at H-, Be-, and C-targets. This momentum range corresponds to region of cumulative pion production where the deuteron core structure up to r≃0.4 fm is probed. The values of T20 are found to be small and positive in contradiction with the Impulse Approximation calculations assuming a direct mechanism of pion production on high momentum nucleon in the deuteron (NN→NNπ). In this report we present new data on tensor Ayy analyzing powers at non-zero angles (θ=135,180mr) with pion transverse momenta up to Pt=0.8 GeV/c. Ayy increases with rise of Pt in the cumulative region reaching the magnitude of −0.4 at Pt=0.7–0.8 GeV/c.

Published
2001
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29. First results on the tensor analyzing power A yy in deuteron inclusive breakup at large transverse momenta of protons

Author

T. Matsuda, Yu. K. Pilipenko, A. Yu. Isupov, M. Kawano, G. Filipov, A. N. Khrenov, V. P. Zhmyrov, T. Kageya, A.A. Nomofilov, N. Takabayashi, A. Wakai, V. L. Kolesnikov, V. P. Ladygin, H. Nakayama, V. V. Fimushkin, V.N. Penev, Shuji Fukui, N. Horikawa, S. Hasegawa, L. S. Azhgirey, Alexander Malakhov, L. S. Zolin, P. A. Rukoyatkin, G.D. Stoletov, V. P. Ershov, V. A. Kashirin, V. L. Sharov, E. V. Chernykh, S.A. Zaporozhets, I. A. Semenova, S. G. Reznikov, V. V. Arkhipov, A.S. Nikiforov, N. P. Yudin, A.D. Kirillov, V. K. Bondarev, I. I. Migulina, S. V. Afanasiev, T. Iwata, L.N. Strunov, M. Ehara, E. Osada, A. G. Litvinenko, Takehisa Hasegawa, and A. Yu. Semenov

Subjects
Physics, Proton, Nuclear Theory, Breakup, law.invention, Momentum, Nuclear physics, Transverse plane, Deuterium, law, Quantum electrodynamics, Physics::Accelerator Physics, Tensor, Synchrophasotron, Nuclear Experiment, Beam (structure)
Abstract

The tensor analyzing power A yy in inclusive breakup of 9 GeV/c deuterons on carbon has been measured at 85 mrad of the detected proton angle using polarized beam of the Synchrophasotron of the Laboratory for High Energies of JINR. The analyzing power A yy remains positive at the highest measured momentum of the proton in definite contradiction with the predictions based on the standard nucleon-nucleon potentials.

Published
1999
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30. Scaling of semi-inclusive cross sections with respect to longitudinal and transverse momenta

Author

L.M. Scheglova, A.N. Solomin, V.N. Penev, N.S. Angelov, N.N. Melnikova, L.D. Grekova, N.D. Akhababyan, and A.I. Shklovskaya

Subjects
Physics, Nuclear and High Energy Physics, Antiparticle, Meson, Hadron, Elementary particle, Nuclear physics, Pion, High Energy Physics::Experiment, Multiplicity (chemistry), Atomic physics, Nuclear Experiment, Scaling, Boson
Abstract

The semi-inclusive one-particle transverse and longitudinal momenta spectra of π ± mesons have been studied in the centre-of-mass system for π − p interactions at 40 GeV/ c . These data are compared with similar data from pp interactions at 300 GeV/ c and lower energies. Distributions in the variables p T /〈 p T 〉 and p L /〈 p L 〉 reveal scaling properties, which are found to be substantially independent of the nature of the projectile, of the incident energy and of the prong multiplicity. These spectra are reasonably described by universal functions.

Published
1975
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31. Multiplicity, momentum and angular characteristics of π− mesons forpC,dC, αC and CC interactions at 4.2 GeV/c per nucleon

Author

S.A. Azimov, D. Krpic, Lj Simic, D. Batmunh, O. Balea, V.B. Lyubimov, Ts. Baatar, S. Yu. Sivoklokov, D. Armutlijsky, L.A. Didenko, Z. Trka, S. A. Korchagin, A. A. Yuldashev, L. Rak, K.K. Gudima, I. N. Erofeeva, R. R. Mehtiyev, V.G. Grishin, P.P. Temnikov, Sh.V. Inogamov, G. P. Gulkanian, Z. V. Metreveli, S. Backovic, Helena Bialkowska, R. Bekmirsaev, M. Kowalski, A.M. Baldin, T. Togoo, N.S. Angelov, L. M. Shcheglova, P.K. Markov, P.P. Kerachev, Ya. Trkova, K. Iovchev, S.A. Prokopieva, T. Kanarek, Z. A. Kirakosian, V.F. Nikitina, M. M. Muminov, V.S. Murzin, Ovsat Abdinov, D.K. Kopylova, M. I. Soloviev, V.N. Penev, I.Ya. Chasnikov, Lidia Smirnova, Jiri Dolejsi, H. Semerdzhiev, S.I. Lyutov, N. Grigalashvili, I. Suvanov, V. M. Popova, N.S. Amaglobeli, G. P. Toneeva, E. Balea, K. Hansgen, N. Akhababian, D. Tuvdendorzh, E.N. Kladnitskaya, N. I. Kochnev, Alexander Cheplakov, J. Bogdanowicz, I.A. Ivanovskaya, D. Krmpotic, M. A. Dasaeva, M. I. Izbasarov, I. Ravinovich, F. A. Ismatova, S. Hacman, Yu. P. Keloglu, T. Ponta, L.D. Grekova, Yu.V. Tevzadze, J. Bartke, A.Kh. Vinitsky, S. Drndarevic, B. S. Yuldashev, A.P. Gasparian, H. N. Agakishiyev, A. N. Solomin, V. D. Toneev, S.O. Edgorov, N. N. Melnikova, and V. Boldea

Subjects
Physics, Nuclear reaction, Particle physics, Physics and Astronomy (miscellaneous), Meson, Nuclear Theory, Hadron, Elementary particle, Nuclear physics, Momentum, Pion, High Energy Physics::Experiment, Multiplicity (chemistry), Nuclear Experiment, Nucleon, Engineering (miscellaneous)
Abstract

Light ion collisions with carbon target at 4.2 GeV/c/N are studied. Pion multiplicity distributions, momentum and angular spectra are analysed. These data are described in terms of models assuming independent interactions of nucleons from the projectile nucleus with the target.

Published
1985
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32. A Monte-Carlo method for multi-Regge reactions

Author

Yu. Tevzadze, V.N. Penev, G.I. Kopylov, and A.I. Shklovskaya

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Pion, Relation (database), Monte Carlo method, Nucleon
Abstract

The relation is analysed between the Byckling-Kajantie method of generation of peripheral random events and the usual methods of generation of central-interaction events. The way to ameliorate the efficiency of the method is proposed and tested.

Published
1971
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33. ALICE: Physics performance report, volume II

Author

Aamodt, K, Quintana, Aa, Achenbach, R, Acounis, S, Adamova, D, Adler, C, Aggarwal, M, Agnese, F, Rinella, Ga, Ahammed, Z, Ahmad, A, Ahmad, N, Ahmad, S, Akindinov, A, Akishin, P, Aleksandrov, D, Alessandro, B, Alfaro, R, Alfarone, G, Alici, A, Alme, J, Alt, T, Altinpinar, S, Amend, W, Andrei, C, Andres, Y, Andronic, A, Anelli, G, Anfreville, M, Angelov, V, Anzo, A, Anson, C, Anticic, T, Antonenko, V, Antonczyk, D, Antinori, F, Antinori, S, Antonioli, P, Aphecetche, L, Appelshauser, H, Aprodu, V, Arba, M, Arcelli, S, Argentieri, A, Armesto, N, Arnaldi, R, Arefiev, A, Arsene, I, Asryan, A, Augustinus, A, Awes, Tc, Aysto, J, Azmi, Md, Bablock, S, Badala, A, Badyal, Sk, Baechler, J, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baldit, A, Ban, J, Barbera, R, Barberis, Pl, Barbet, Jm, Barnafoldi, G, Barret, V, Bartke, J, Bartos, D, Basile, M, Basmanov, V, Bastid, N, Batigne, G, Batyunya, B, Baudot, J, Baumann, C, Bearden, I, Becker, B, Belikov, J, Bellwied, R, BELMONT MORENO, E, Belogianni, A, Belyaev, S, Benato, A, Beney, Jl, Benhabib, L, Benotto, F, Beoe, S, Berceanu, I, Bercuci, A, Berdermann, E, Berdnikov, Y, Bernard, C, Berny, R, Berst, Jd, Bertelsen, H, Betev, L, Bhasin, A, Baskar, P, Bhati, A, Bianchi, N, Bielcik, J, Bielcikova, J, Bimbot, L, Blanchard, G, Blanco, F, Blau, D, Blume, C, Blyth, S, Boccioli, M, Bogdanov, A, Boggild, H, Bogolyubsky, M, Boldizsar, L, Bombara, M, Bombonati, C, Bondila, M, Bonnet, D, Bonvicini, V, Borel, H, Borotto, F, Borshchov, V, Bortoli, Y, Borysov, O, Bose, S, Bosisio, L, Botje, M, Bottger, S, Bourdaud, G, Bourrion, O, Bouvier, S, Braem, A, Braun, M, BRAUN MUNZINGER, P, Bravina, L, Bregant, M, Bruckner, G, Brun, R, Bruna, E, Brunasso, O, Bruno, Ge, Bucher, D, Budilov, V, Budnikov, D, Buesching, H, Buncic, P, Burns, M, Burachas, S, Busch, O, Bushop, J, Cai, X, Caines, H, Calaon, F, Caldogno, M, Cali, I, Camerini, P, Campagnolo, R, Campbell, M, Cao, X, Capitani, Gp, Romeo, Gc, CARDENAS MONTES, M, Carduner, H, Carena, F, Carena, W, Cariola, P, Carminati, F, Casado, J, Diaz, Ac, Caselle, M, Castellanos, Jc, Castor, J, Catanescu, V, Cattaruzza, E, Cavazza, D, Cerello, P, Ceresa, S, Cerny, V, Chambert, V, Chapeland, S, Charpy, A, Charrier, D, Chartoire, M, Charvet, Jl, Chattopadhyay, S, Chepurnov, V, Chernenko, S, Cherney, M, Cheshkov, C, Cheynis, B, Chochula, P, Chiavassa, E, Barroso, Vc, Choi, J, Christakoglou, P, Christiansen, P, Christensen, C, Chykalov, Oa, Cicalo, C, CIFARELLI STROLIN, L, Ciobanu, M, Cindolo, F, Cirstoiu, C, Clausse, O, Cleymans, J, Cobanoglu, O, Coffin, Jp, Coli, S, Colla, A, Colledani, C, Combaret, C, Combet, M, Comets, M, Balbastre, Gc, DEL VALLE ZC, Contin, G, Contreras, J, Cormier, T, Corsi, F, Cortese, P, Costa, F, Crescio, E, Crochet, P, Cuautle, E, Cussonneau, J, Dahlinger, M, Dainese, A, Dalsgaard, Hh, Daniel, L, Das, I, Das, T, Dash, A, DA SILVA, R, Davenport, M, Daues, H, DE CARO, A, DE CATALDO, G, DE CUVELAND, J, DE FALCO, A, DE GASPARI, M, DE GIROLAMO, P, DE GROOT, J, DE GRUTTOLA, D, DE HAAS, A, DE MARCO, N, DE PASQUALE, S, DE REMIGIS, P, DE VAUX, D, Decock, G, Delagrange, H, DEL FRANCO, M, Dellacasa, G, Dell'Olio, C, Dell'Olio, D, Deloff, A, Demanov, V, Denes, E, D'Erasmo, G, Derkach, D, Devaux, A, DI BARI, D, DI BARTELOMEN, A, DI GIGLIO, C, DI LIBERTO, S, DI MAURO, A, DI NEZZA, P, Dialinas, M, Diaz, L, Valdes, Rd, Dietel, T, Dima, R, Ding, H, Dinca, C, Divia, R, Dobretsov, V, Dobrin, A, Doenigus, B, Dobrowolski, T, Dominguez, I, Dorn, A, Drouet, S, Dubey, Ae, Ducroux, L, Dumitrache, F, Dumonteil, E, Dupieux, P, Duta, V, Majumdar, Ad, Majumdar, Md, Dyhre, T, Efimov, L, Efremov, A, Elia, D, Emschermann, D, Engster, C, Enokizono, A, Espagnon, B, Estienne, M, Evangelista, A, Evans, D, Evrard, S, Fabjan, Cw, Fabrid, D, Faivre, J, Falchieri, D, Fantoni, A, Farano, R, Fearick, R, Fedorov, O, Fekete, V, Felea, D, Feofilov, G, Tellez, Af, Ferretti, A, Fichera, F, Filchagin, S, Filoni, E, Finck, C, Fini, R, Fiore, Em, Flierl, D, Floris, M, Fodor, Z, Foka, Y, Fokin, S, Force, P, Formenti, F, Fragiacomo, E, Fragkiadakis, M, Fraissard, D, Franco, A, Franco, M, Frankenfeld, U, Fratino, U, Fresneau, S, Frolov, A, Fuchs, U, Fujita, J, Furget, C, Furini, M, Girard, Mf, Gaardhoje, Jj, Gabrielli, A, Gaido, L, Torreira, Ag, Gallio, M, Gadrat, S, Gagliard, M, Gag, A, Gandolfi, E, Ganoti, P, Ganti, M, Garabatos, J, Lopez, Ag, Garizzo, L, Gaudichet, L, Gemme, R, Germain, M, Gheata, A, Gheata, M, Ghidini, B, Ghosh, P, Giolu, G, Giraudo, G, Giubellino, P, Glasow, R, Glassel, P, Ferreiro, Eg, Gutierrez, Cg, GONZALES TRUEBA LH, Gorbunov, S, Gorbunov, Y, Gos, H, Gosset, J, Gotovac, S, Gottschlag, H, Gottschalk, D, Grabski, V, Grassi, T, Gray, H, Grebenyuk, O, Grebieszkow, K, Gregory, C, Grigoras, C, Grion, N, Grigoriev, V, Grigoryan, A, Grigoryan, C, Grigoryan, S, Grishuk, Y, Gros, P, GROSSE OETRINGHAUS, J, Grossiord, Jy, Grosso, R, Grynyov, B, Guarnaccia, C, Guber, F, Guerin, F, Guernane, R, Guerzoni, M, Guichard, A, Guida, A, Guilloux, G, Gulkanyan, H, Gulbrandsen, K, Gunji, T, Gupta, A, Gupta, V, Gustafsson, Ha, Gutbrod, H, Hadjidakis, C, Haiduc, M, Hamar, G, Hamagaki, H, Hamblen, J, Hansen, Jc, Hardy, P, Hatzifotiadou, D, Harris, Jw, Hartig, M, Harutyunyan, A, Hayrapetyan, A, Hasch, D, Hasegan, D, Hehner, J, Heine, N, Heinz, M, Helstrup, H, Herghelegiu, A, Herlant, S, Corral, Gh, Herrmann, N, Hetland, K, Hille, P, Hinke, H, Hippolyte, B, Hoch, M, Hoebbel, H, Hoedlmoser, H, Horaguchi, T, Horner, M, Hristov, P, Hrivnacova, I, Hu, S, Guo, Ch, Humanic, T, Hurtado, A, Hwang, Ds, Ianigro, Jc, Idzik, M, Igolkin, S, Ilkaev, R, Ilkiv, I, Imhoff, M, Innocenti, Pg, Ionescu, E, Ippolitov, M, Irfan, M, Insa, C, Inuzuka, M, Ivan, C, Ivanov, A, Ivanov, M, Ivanov, V, Jacobs, P, Jacholkowski, A, Jancurova, L, Janik, R, Jasper, M, Jena, C, Jirden, L, Johnson, Dp, Jones, Gt, Jorgensen, C, Jouve, F, Jovanovic, P, Junique, A, Jusko, A, Jung, H, Jung, W, Kadija, K, Kamal, A, Kamermans, R, Kapusta, S, Kaidalov, A, Kakoyan, V, Kalcher, S, Kang, E, 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BAATAR, B.V. BATIOUNIA, V.F. CHEPURNOV, S.A. CHERNENKO, V.K. DODOKHOV, O.V. FATEEV, A.G. FEDUNOV, M. HAIDUC, D. HASEGAN, V.G. KADYCHEVSKY, G. KHARADZE, B. KHURELBAATAR, E.K. KOSHURNIKOV, V.L. LIOUBOCHITS, V.I. LOBANOV, L.V. MALININA, Y.I. MINAEV, M. NIORADZE, P.V. NOMOKONOV, Y.A. PANEBRATTSEV, V.N. PENEV, V.G. PISMENNAYA, T.A. POCHEPTSOV, I. ROUFANOV, G.S. SHABRATOVA, V. SHESTAKOV, A.I. SHKLOVSKAYA, A.S. SORIN, M.K. SULEIMANOV, Y. TEVZADZE, R. TOGOO, A.S. VODOPIANOV, V.I. YUREVICH, Y.V. ZANEVSKY, S.A. ZAPOROJETS, A.I. ZINCHENKO, J. AYSTO, M. BONDILA, V. LYAPIN, M. OINONEN, T. MALKIEWICZ, V. RUUSKANEN, H. SEPPANEN, W. TRZASKA, S. YAMALETDINOV, H.T. JUNG, W. JUNG, D.-W. KIM, H.N. KIM, J.S. KIM, K.S. LEE, S.-C. LEE, T. BLANK, H. GEMMEKE, G.L. BOCHEK, A.N. DOVBNYA, V.I. KULIBABA, N.I. MASLOV, S.V. NAUMOV, V.D. OVCHINNIK, S.M. POTIN, A.F. STARODUBTSEV, V.N. BORSHCHOV, O. CHYKALOV, L. KAUROVA, S.K. KIPRICH, L. KLYMOVA, O.M. LISTRATENKO, N. MYKHAYLOVA, M. PROTSENKO, O. REZNIK, V.E. STARKOV, I. KADENKO, Y. MARTYNOV, S. MOLODTSOV, Y. SINYUKOV, G. ZINOVJEV, P. BHATTACHARYA, S. BOSE, S. CHATTERJEE, S. CHATTOPADHYAY, D. DAS, I. DAS, A.K. DUTT-MAZUMDER, N. MAJUMDAR, S. MUKHOPADHYAY, S. PAL, L. PAUL, P. ROY, A. SANYAL, S. SARKAR, P. SEN, S.K. SEN, B.C. SINHA, T. SINHA, Z. AHAMMED, P. BHASKAR, S.CHATTOPADHYAY, S. DAS, M.R. DUTTA MAJUMDAR, M.S. GANTI, P. GHOSH, B.MOHANTY, P.K. NETRAKANTI, R.N. SINGARAJU, V. SINGHAL, B. SINHA, Y.P. VIYOGI, G. HARTUNG, T. KRAWUTSCHKE, J. BAN, M. BOMBARA, A. DIRNER, M. HNATIC, I. KRALIK, A. KRAVCAKOVA, F. KRIVAN, M. KRIVDA, G. MARTINSKA, B. PASTIRCAK, L. SANDOR, J. URBAN, J. VRLAKOVA, M. CINAUSERO, E. FIORETTO, G. PRETE, R.A. RICCI, L. VANNUCCI, P. BRANCO, R. CARVALHO, J. SEIXAS, R. VILELA MENDES, A. OSKARSSON, L. OSTERMAN, I. OTTERLUND, E.A. STENLUND, B. CHEYNIS, L. DUCROUX, J.Y. GROSSIORD, A. GUICHARD, P. PILLOT, B. RAPP, R. TIEULENT, J.R. ALFARO MOLINA, A. AYALA, E. BELMONT MORENO, G. CONTRERAS, E. CUAUTLE, J.C. D'OLIVO, I. DOMINGUEZ, A. FLORES, V. GRABSKI, G. HERRERA CORRAL, M. LINARES, M.I. MARTINEZ, A. MARTINEZ DAVALOS, A. MENCHACA-ROCHA, L.M. MONTANO ZETINA, L. NELLEN, G. PAIC, J. DEL PINO, P. REYES, A. SANDOVAL, J. SOLANO, S. VERGARA, A. ZEPEDA, V.A. FESHCHENKO, M.B. GOLUBEVA, V.G. GORLYCHEV, F.F. GUBER, O.V. KARAVICHEV, T.L. KARAVICHEVA, E.V. KARPECHEV, A.B. KUREPIN, A.I. MAEVSKAYA, V.V. MARIN, I.A. PSHENICHNOV, V.I. RAZIN, A.I. RESHETIN, K.A. SHILEEV, N.S. TOPIL'SKAIA, A.N. AKINDINOV, V. GOLOVINE, A.B. KAIDALOV, M.M. KATS, I.T. KISELEV, S.M. KISSELEV, E. LIOUBLEV, M. MARTEMIANOV, A.N. MARTEMIYANOV, P.A. POLOZOV, V.S. SEROV, A.V. SMIRNITSKI, M.M. TCHOUMAKOV, I.A. VETLITSKI, K.G. VOLOCHINE, L.S. VOROBIEV, B.V. ZAGREEV, D. ALEKSANDROV, V. ANTONENKO, S. BELIAEV, S. FOKINE, M. IPPOLITOV, K. KARADJEV, I. KOUTCHERIAEV, V. LEBEDEV, V.I. MANKO, T. MOUKHANOVA, A. NIANINE, S. NIKOLAEV, S. NIKOULINE, O. PATARAKINE, D. PERESSOUNKO, I. SIBIRIAK, A. TSVETKOV, A. VASILIEV, A. VINOGRADOV, I. YUSHMANOV, V.A. GRIGORIEV, V.A. KAPLIN, V.A. LOGINOV, B.K. NANDI, R.VARMA, V.B. CHANDRATRE, S.K. KATARIA, C. BAUMANN, R. GLASOW, H. GOTTSCHLAG, J.F. GROSSE-OETRINGHAUS, N. HEINE, C. KLEIN-BOESING, K. REYGERS, R. SANTO, W. VERHOEVEN, J. WESSELS, A. WILK, L. APHECETCHE, R. BERNY, S. BOUVIER, G. CONESA-BALBASTRE, Z. CONESA-DEL-VALLE, J.P. CUSSONNEAU, H. DELAGRANGE, M. DIALINAS, CH. FINCK, B. ERAZMUS, M. GERMAIN, F. LEFEVRE, L. LUQUIN, G. MARTINEZ, CH. RENARD, C. ROY, A. TOURNAIRE, A.R. FROLOV, I.N. PESTOV, T.C. AWES, M. CHERNEY, Y. GORBUNOV, L. BIMBOT, V. CHAMBERT, A. CHARPY, M. COMETS, P. COURTAT, S. DROUET, P. EDELBRUCK, B. ESPAGNON, I. HRIVNACOVA, R. KUNNE, Y. LE BORNEC, M. MAC CORMICK, J. PEYRE, J. POUTHAS, S. ROUSSEAU, C. SUIRE, N. WILLIS, T. WU, L. BRAVINA, G. LOVHOIDEN, B. SKAALI, T.S. TVETER, T. VIK, F. ANTINORI, A. DAINESE, R. DIMA, D. FABRIS, J. FAIVRE, M. LUNARDON, M. MORANDO, S. MORETTO, A. PEPATO, E. QUERCIGH, F. SCARLASSARA, G. SEGATO, R. TURRISI, G. VIESTI, J. CHOI, A. BEITLEROVA, J. MARES, K. POLAK, P. ZAVADA, V. PETRACEK, M. PACHR, L. SKODA, M.YU. BOGOLYUBSKY, G.V. KHAUSTOV, YU.V. KHARLOV, N.G. MINAEV, V.S. PETROV, B.V. POLICHTCHOUK, S.A. SADOVSKY, V.A. SENKO, A.S. SOLOVIEV, P.V. STOLPOVSKY, V.A. VICTOROV, A. FERNANDEZ TELLEZ, E. GAMEZ FLORES, R. LOPEZ-RAMIREZ, A. ORTIZ-VELAZQUEZ, C. PAGLIARONE, S. ROMAN-LOPEZ, G. TEJEDA-MUNOZ, A. VARGAS, L. VILLASENOR CENDEJAS, D. ADAMOVA, S. KOUCHPIL, V. KOUCHPIL, A. KUGLER, M. SUMBERA, V. WAGNER, S. DI LIBERTO, M.A. MAZZONI, F. MEDDI, G.M. URCIUOLI, J. CLEYMANS, G. DE VAUX, R.W. FEARICK, A. SZOSTAK, Z.Z. VILAKAZI, M. ANFREVILLE, A. BALDISSERI, B. BECKER, H. BOREL, J. CASTILLO, J.-L. CHARVET, M. COMBET, J. GOSSET, P. HARDY, S. HERLANT, F. ORSINI, Y. PENICHOT, H. PEREIRA, F.M. STALEY, M. USSEGLIO, A. DE CARO, D. DE GRUTTOLA, S. DE PASQUALE, A. DI BARTOLOMEO, M. FUSCO GIRARD, G. GRELLA, C. GUARNACCIA, M. GUIDA, G. ROMANO, S. SELLITTO, R. SILVESTRI, T. VIRGILI, V. BASMANOV, D. BUDNIKOV, V. DEMANOV, V. IANOWSKI, R. ILKAEV, L. ILKAEVA, A. IVANOV, A. KHLEBNIKOV, A. KOURYAKIN, E. MIKHAILOV, S. NAZARENKO, V. PAVLOV, S. PHILCHAGIN, A. PUNIN, V. PUNIN, S. POUTEVSKOI, A. RYBIN, I. SELIN, M. SMETANIN, A. TELNOV, S. TRESKOV, O. VIKHLYANTSEV, I. VINOGRADOV, A. VYUSHIN, N. ZAVYALOV, S. ZHELEZOV, A. ZHITNIK, S. GOTOVAC, E. MUDNIC, L. VIDAK, A.G. ASRYAN, M.A. BRAUN, D.A. DERKACH, G.A. FEOFILOV, S.N. IGOLKIN, A.S. IVANOV, R.S. KOLEVATOV, A.A. KOLOJVARI, V.P. KONDRATIEV, P.A. NAUMENKO, T.A. TOULINA, F.F. VALIEV, V.V. VECHERNIN, L.I. VINOGRADOV, J. BAUDOT, D. BONNET, J.P. COFFIN, M. ESTIENNE, B. HIPPOLYTE, C. KUHN, J.R. LUTZ, R. VERNET, H. HAMAGAKI, K. OZAWA, V. BONVICINI, O. BORYSOV, L. BOSISIO, M. BREGANT, P. CAMERINI, G. CONTIN, F. FALESCHINI, E. FRAGIACOMO, N. GRION, G. MARGAGLIOTTI, S. PIANO, I. RACHEVSKAYA, A. RACHEVSKI, R. RUI, A. VACCHI, B. ALESSANDRO, R. ARNALDI, S. BAGNASCO, G. BATIGNE, S. BEOLE, E. BRUNA, P. CERELLO, E. CHIAVASSA, O. COBANOGLU, S. COLI, E. CRESCIO, N. DE MARCO, P. DE REMIGIS, A. FERRETTI, M. GAGLIARDI, M. GALLIO, L. GAUDICHET, R. GEMME, G. GIRAUDO, P. GIUBELLINO, M. IDZIK, S. MARTOIU, A. MARZARI CHIESA, M. MASERA, G. MAZZA, P. MEREU, M. MONTENO, A. MUSSO, C. OPPEDISANO, A. PICCOTTI, F. POGGIO, F. PRINO, L. RICCATI, A. RIVETTI, E. SCOMPARIN, D. STOCCO, F. TOSELLO, L. TOSCANO, G. TRAVAGLIA, E. VERCELLIN, A. WERBROUCK, R. WHEADON, F. YERMIA, Y. MIAKE, S. ESUMI, J.J. F. BUSKOP, A.P. DE HAAS, C. IVAN, R. KAMERMANS, A. MISCHKE, G. NOOREN, C.J. OSKAMP, TH. PEITZMANN, E. SIMILI, O. SOKOLOV, A. VAN DEN BRINK, N. VAN EIJNDHOVEN, H. ENYO, K. FUJIWARA, H. KANO, H. ONISHI, A. DELOFF, T. DOBROWOLSKI, K. KARPIO, M. MALEK, H. MALINOWSKI, K. REDLICH, T. SIEMIARCZUK, G. STEFANEK, L. TYKARSKI, G. WILK, Z. CHAJECKI, H. GOS, M. JANIK, M. JEDYNAK, A. KISIEL, T.J. PAWLAK, W.S. PERYT, J. PLUTA, P. SKOWRONSKI, M. SLODKOWSKI, P. SZUBA, T. TRACZYK, E.S. CONNER, R. KEIDEL, X. CAI, H.T. DING, H. LIU, X.R. WANG, H.Y. YANG, Z.B. YIN, D.C. ZHOU, X. CAO, Q. LI, Y.Z. LIU, G. SU, L. TAN, G.X. ZHU, M. ATAYAN, A. GRIGORYAN, H. GULKANYAN, A. HARUTYUNYAN, A. HAYRAPETYAN, V. KAKOYAN, M. POGHOSYAN, G. SARGSYAN, T. ANTICIC, K. KADIJA, and T. SUSA

Subjects
Physics, Particle physics, Nuclear and High Energy Physics, Large Hadron Collider, 010308 nuclear & particles physics, Detector, Monte Carlo method, Observable, 7. Clean energy, 01 natural sciences, Particle identification, Nuclear physics, 0103 physical sciences, ALICE (propellant), 010306 general physics, Nuclear Experiment, ALICE, physics, performance, detector, CERN, QGP, LHC, Event (particle physics), Event reconstruction
Abstract

ALICE is a general-purpose heavy-ion experiment designed to study the physics of strongly interacting matter and the quark-gluon plasma in nucleus-nucleus collisions at the LHC. It currently involves more than 900 physicists and senior engineers, from both the nuclear and high-energy physics sectors, from over 90 institutions in about 30 countries. The ALICE detector is designed to cope with the highest particle multiplicities above those anticipated for Pb-Pb collisions (dN(ch)/dy up to 8000) and it will be operational at the start-up of the LHC. In addition to heavy systems, the ALICE Collaboration will study collisions of lower-mass ions, which are a means of varying the energy density, and protons (both pp and pA), which primarily provide reference data for the nucleus-nucleus collisions. In addition, the pp data will allow for a number of genuine pp physics studies. The detailed design of the different detector systems has been laid down in a number of Technical Design Reports issued between mid-1998 and the end of 2004. The experiment is currently under construction and will be ready for data taking with both proton and heavy-ion beams at the start-up of the LHC. Since the comprehensive information on detector and physics performance was last published in the ALICE Technical Proposal in 1996, the detector, as well as simulation, reconstruction and analysis software have undergone significant development. The Physics Performance Report (PPR) provides an updated and comprehensive summary of the performance of the various ALICE subsystems, including updates to the Technical Design Reports, as appropriate. The PPR is divided into two volumes. Volume I, published in 2004 (CERN/LHCC 2003-049, ALICE Collaboration 2004 J. Phys. G: Nucl. Part. Phys. 30 1517-1763), contains in four chapters a short theoretical overview and an extensive reference list concerning the physics topics of interest to ALICE, the experimental conditions at the LHC, a short summary and update of the subsystem designs, and a description of the offline framework and Monte Carlo event generators. The present volume, Volume II, contains the majority of the information relevant to the physics performance in proton-proton, proton-nucleus, and nucleus-nucleus collisions. Following an introductory overview, Chapter 5 describes the combined detector performance and the event reconstruction procedures, based on detailed simulations of the individual subsystems. Chapter 6 describes the analysis and physics reach for a representative sample of physics observables, from global event characteristics to hard processes.

Published
2006

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