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151. Measurement of single electron event anisotropy in Au+Au collisions atsNN=200GeV

Author: C. A. Ogilvie, S. Afanasiev, T. K. Hemmick, Yasuo Miake, Shih-Chang Lee, Sean A. Kelly, K. S. Sim, Minghui Liu, V.A. Onuchin, L. Kochenda, S. Belikov, K. S. Joo, Y. Kuroki, Kenneth Francis Read, W. Y. Jang, Viktor Veszpremi, F. Messer, S. Butsyk, Vladimir Samsonov, I. Otterlund, I. Ravinovich, K. Imai, H. J. Kim, B. D. Fox, M. Heffner, F. Plasil, S. Batsouli, T. Peitzmann, Saskia Mioduszewski, Yves Roland Schutz, D. Pal, Jen-Chieh Peng, E. M. Takagui, Y. Yang, C. P. Singh, B. M. Johnson, K. El Chenawi, A. Isupov, S. S. Ryu, A. Devismes, H. Tsuruoka, L. Aphecetche, G. Gogiberidze, Brian Cole, R. S. Towell, S. Bathe, P. Chand, O. Dietzsch, L. Villatte, J. L. Nagle, Y. I. Makdisi, Martin Purschke, N. Hayashi, S. P. Stoll, Kensuke Homma, C. Y. Chi, K. A. Drees, H. Delagrange, S. Zhou, David D'Enterria, E. Melnikov, A. P.T. Palounek, Dipanwita Dutta, G. R. Young, Dong Jo Kim, Osamu Jinnouchi, Y. J. Kwon, T. Kohama, C. L. Silva, S. Chernichenko, S. Garpman, Yanwen Liu, M. Kopytine, Julia Velkovska, B. Khachaturov, T. Ichihara, T. Matsumoto, T. C. Awes, R. P. Pisani, L. Sanfratello, Y. Tanaka, M. J. Tannenbaum, T. K. Shea, D. Kotchetkov, S. Bhagavatula, S. Borenstein, H. Lim, M. Issah, B. Bassalleck, F. Mühlbacher, Masayasu Ishihara, L. Ewell, Do-Won Kim, P. J. Kroon, F. K. Wohn, H. A. Gustafsson, D. Jouan, Senta Greene, T. K. Ghosh, Matthew G. Reuter, Susumu Sato, M. Nara, M. Muniruzzaman, Kyoichiro Ozawa, Jun Kikuchi, V. V. Ikonnikov, M. Rosati, M. Velkovsky, Nikolay Tyurin, E. Vznuzdaev, V. Bumazhnov, J. B. Choi, Dong-Hun Kim, F. Staley, R. Azmoun, Z. Fraenkel, R. E. Mischke, C. Zhang, S. F. Pate, I. D. Ojha, Alexander Malakhov, M. Chiu, Ajit Kumar Mohanty, Joakim Nystrand, Jan Rak, W. Guryn, D. Bucher, Alexander Milov, T. A. Shibata, R. Granier de Cassagnac, T. Shiina, A. A. Vinogradov, Henrik Tydesjö, V. S. Pantuev, J. Chiba, J. T. Mitchell, K. Kiyoyama, E. O'Brien, X. R. Wang, N. Kamihara, J. Gosset, L. S. Zolin, F. Matathias, B. K. Nandi, Y. Watanabe, R. A. Soltz, D. Mukhopadhyay, A. G. Litvinenko, M. Harvey, M. Sakai, J. S. Chai, O. Drapier, J. P. Sullivan, Jiangyong Jia, Y. Goto, R. K. Choudhury, Wei Xie, G. C. Mishra, P. D. Barnes, Vladislav Manko, Y. Cobigo, Viktor Riabov, Junji Tojo, H. W. Van Hecke, A. Drees, A. Yanovich, D. Isenhower, A. Soldatov, V. Papavassiliou, Charles Maguire, S. Leckey, P. L. McGaughey, D. P. Morrison, A. Deshpande, K. Tanida, Takao Sakaguchi, S. Y. Fung, S. C. Johnson, P. Tarján, M. D. Marx, E. P. Hartouni, Gerry Bunce, W. C. Chang, T. Chujo, German Martinez, K. Okada, S. Esumi, V. I. Kochetkov, Y. J. Mao, M. Grosse Perdekamp, J. E. Frantz, C. Klein-Boesing, J. M. Burward-Hoy, V. E. Semenov, R. du Rietz, Josh Moss, M. Tamai, H. Kobayashi, A. Kozlov, M. J. Kweon, R. Seto, H. En'yo, P. Constantin, A. D. Frawley, M. J. Leitch, E. Kistenev, John Hill, K. Oyama, Roy A. Lacey, X. Camard, A. Parmar, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, I. Tserruya, Agneta Oskarsson, Herve Borel, Toru Sugitate, T. E. Miller, Y. Berdnikov, S. Yokkaichi, Christine Angela Aidala, Sergey Fokin, R. Santo, A. Enokizono, Yu. Efremenko, V. Singh, Y. Akiba, A. Glenn, S. H. Aronson, S. Sawada, J. D. Tepe, J. M. Heuser, S. Nagamiya, Kazuhiro Tanaka, A. Franz, Alberto Baldisseri, X. He, Hideki Hamagaki, A. Hoover, G. David, G. B. Kim, D. Koehler, S. Kametani, François Fleuret, W. Holzmann, Klaus Johannes Reygers, V. Peresedov, C. H. Kuberg, Atsushi Taketani, S. S. Kapoor, J. H. Kang, J. S. Haggerty, A. Romana, S. N. White, David Olle Rickard Silvermyr, Hirohiko Sato, S. K. Tuli, H. Masui, K. N. Barish, M. Ono, N. Grau, W. E. Sondheim, M. L. Brooks, J. G. Boissevain, P. W. Stankus, K. Katou, A. Kiyomichi, C. Pinkenburg, M. Stepanov, G. Roche, E. J. Desmond, M. Hibino, J. Park, A. Ster, R. Amirikas, I. E. Yushmanov, Hiroaki Ohnishi, Alexei Khanzadeev, J. Milan, N. Bruner, E. Stenlund, H. Buesching, Xingguo Li, V. Ladygin, M. Gonin, K. Kurita, M. Sivertz, S. P. Sorensen, Peter M. Nilsson, J. G. Lajoie, T. Hachiya, I. J. Choi, Jason Newby, J. Murata, T. L. Thomas, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, A. S. Nyanin, A. G. Hansen, Shingo Sakai, C. L. Woody, N. N. Ajitanand, M. R. Shaw, Takahiro Nakamura, M. E. Sadler, A. Durum, I. V. Sourikova, H. Torii, D. S. Brown, D. E. Fields, B. V. Jacak, A. K. Purwar, Norio Saito, V. Babintsev, E. H. Kim, S. S. Adler, G. S. Kyle, James Alexander, Y. Jeong, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, and M. A. Volkov
Subjects: Physics, Nuclear and High Energy Physics, Photon, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Elliptic flow, Electron, 01 natural sciences, 7. Clean energy, Nuclear physics, Particle decay, Transverse plane, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, PHENIX detector, Nuclear Experiment, 010306 general physics, Anisotropy
Abstract: The transverse momentum dependence of the azimuthal anisotropy parameter v(2), the second harmonic of the azimuthal distribution, for electrons at midrapidity (vertical bar eta vertical bar < 0.35) has been measured with the PHENIX detector in Au+Au collisions at root s(NN) = 200 GeV. The measurement was made with respect to the reaction plane defined at high rapidities (vertical bar eta vertical bar = 3.1-3.9). From the result we have measured the v(2) of electrons from heavy flavor decay after subtraction of the v(2) of electrons from other sources such as photon conversions and Dalitz decay from light neutral mesons. We observe a nonzero single electron v(2) with a 90% confidence level in the intermediate-p(T) region. The precision of the present data set does not permit us to conclude definitively that heavy quarks exhibit thermalization with the transverse flow of the bulk matter.
Published: 2005

152. J/psi production and nuclear effects for d + Au and p + p collisions at square root of S(NN) = 200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, A, Al-Jamel, J, Alexander, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, E T, Atomssa, R, Averbeck, T C, Awes, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, F, Bauer, A, Bazilevsky, S, Belikov, M T, Bjorndal, J G, Boissevain, H, Borel, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, J P, Cussonneau, D, d'Enterria, K, Das, G, David, F, Deák, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, J L, Drachenberg, O, Drapier, A, Drees, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, H, En'yo, B, Espagnon, S, Esumi, D E, Fields, C, Finck, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, Y, Fukao, S-Y, Fung, S, Gadrat, M, Germain, A, Glenn, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, K, Hasuko, R, Hayano, X, He, M, Heffner, T K, Hemmick, J M, Heuser, P, Hidas, H, Hiejima, J C, Hill, R, Hobbs, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Horaguchi, T, Ichihara, V V, Ikonnikov, K, Imai, M, Inaba, M, Inuzuka, D, Isenhower, L, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, M, Kaneta, J H, Kang, K, Katou, T, Kawabata, A V, Kazantsev, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D J, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kinney, A, Kiss, E, Kistenev, A, Kiyomichi, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, R, Kohara, B, Komkov, M, Konno, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, G J, Kunde, K, Kurita, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, J G, Lajoie, Y, Le Bornec, A, Lebedev, S, Leckey, D M, Lee, M J, Leitch, M A L, Leite, X H, Li, H, Lim, A, Litvinenko, M X, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, H, Masui, F, Matathias, T, Matsumoto, M C, McCain, P L, McGaughey, Y, Miake, T E, Miller, A, Milov, S, Mioduszewski, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, D, Mukhopadhyay, M, Muniruzzaman, S, Nagamiya, J L, Nagle, T, Nakamura, J, Newby, A S, Nyanin, J, Nystrand, E, O'brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, H, Okada, K, Okada, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, V, Penev, J-C, Peng, H, Pereira, V, Peresedov, A, Pierson, C, Pinkenburg, R P, Pisani, M L, Purschke, A K, Purwar, J M, Qualls, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, S S E, Rosendahl, P, Rosnet, V L, Rykov, S S, Ryu, N, Saito, T, Sakaguchi, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, T K, Shea, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, A, Sickles, C L, Silva, D, Silvermyr, K S, Sim, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, S, Takagi, E M, Takagui, A, Taketani, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, T L, Thomas, M, Togawa, J, Tojo, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, H, Tydesjö, N, Tyurin, T J, Uam, H W, van Hecke, J, Velkovska, M, Velkovsky, V, Veszprémi, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, N, Willis, F K, Wohn, C L, Woody, W, Xie, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, J, Zimányi, L, Zolin, and X, Zong
Abstract: J/psi production in d + Au and p + p collisions at square root of S(NN) = 200 GeV has been measured by the PHENIX experiment at rapidities -2.2y+2.4. The cross sections and nuclear dependence of J/psi production versus rapidity, transverse momentum, and centrality are obtained and compared to lower energy p + A results and to theoretical models. The observed nuclear dependence in d + Au collisions is found to be modest, suggesting that the absorption in the final state is weak and the shadowing of the gluon distributions is small and consistent with Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-based parametrizations that fit deep-inelastic scattering and Drell-Yan data at lower energies.
Published: 2005

153. Measurement of transverse single-spin asymmetries for midrapidity production of neutral pions and charged hadrons in polarized p + p collisions at square root(s) = 200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, F, Bauer, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D, d'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, O, Drapier, A, Drees, K A, Drees, R, du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, N, Hayashi, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, van Hecke, J, Velkovska, M, Velkovsky, V, Veszprémi, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, S J, Zhou, and L, Zolin
Abstract: Transverse single-spin asymmetries to probe the transverse-spin structure of the proton have been measured for neutral pions and nonidentified charged hadrons from polarized proton-proton collisions at midrapidity and square root(s) = 200 GeV. The data cover a transverse momentum (pT) range 1.0-5.0 GeV/c for neutral pions and 0.5-5.0 GeV/c for charged hadrons, at a Feynman-x value of approximately zero. The asymmetries seen in this previously unexplored kinematic region are consistent with zero within errors of a few percent. In addition, the inclusive charged hadron cross section at midrapidity from 0.5pT7.0 GeV/c is presented and compared to next-to-leading order perturbative QCD (pQCD) calculations. Successful description of the unpolarized cross section above approximately 2 GeV/c suggests that pQCD is applicable in the interpretation of the asymmetry results in the relevant kinematic range.
Published: 2005

154. Production ofϕmesons at midrapidity insNN=200GeVAu+Aucollisions at relativistic energies

Author: S. N. White, T. E. Miller, R. S. Towell, S. Afanasiev, A. Ster, M. Rosati, Y. I. Makdisi, R. Santo, A. Enokizono, David D'Enterria, R. P. Pisani, Nikolay Tyurin, M. Velkovsky, H. J. Kim, B. D. Fox, H. W. Van Hecke, N. Hayashi, S. Kametani, Jen-Chieh Peng, R. Azmoun, W. E. Sondheim, Martin Purschke, E. H. Kim, X. He, L. Villatte, A. A. Vinogradov, Henrik Tydesjö, Sean A. Kelly, C. Y. Chi, V. Bumazhnov, S. F. Pate, K. Tanida, S. Bathe, Jiangyong Jia, Y. Goto, D. Kotchetkov, S. Bhagavatula, S. P. Sorensen, M. J. Tannenbaum, J. H. Kang, V. Peresedov, H. Tsuruoka, V. I. Kochetkov, D. Mukhopadhyay, Charles Maguire, S. Leckey, Kensuke Homma, A. Devismes, E. Melnikov, J. S. Haggerty, A. Romana, F. Messer, V. V. Ikonnikov, X. R. Wang, Y. Cobigo, J. S. Chai, Z. Fraenkel, S. Y. Fung, M. Heffner, D. Bucher, P. Chand, H. Masui, Y. J. Kwon, Viktor Veszpremi, S. P. Stoll, H. Delagrange, M. Issah, E. Vznuzdaev, Dong Jo Kim, S. S. Adler, G. S. Kyle, Osamu Jinnouchi, Peter M. Nilsson, R. K. Choudhury, R. du Rietz, Josh Moss, M. Tamai, S. Chernichenko, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, J. E. Frantz, John Hill, K. Oyama, V.A. Onuchin, S. Belikov, K. S. Joo, V. Papavassiliou, P. L. McGaughey, D. E. Fields, James Alexander, Y. Jeong, R. Averbeck, Byung-Sik Hong, T. Peitzmann, Saskia Mioduszewski, B. V. Jacak, J. Chiba, G. R. Young, M. Sakai, A. Bazilevsky, T. Shiina, L. Sanfratello, E. Kistenev, Herve Borel, J. T. Mitchell, S. Borenstein, A. G. Litvinenko, P. Tarján, G. Gogiberidze, Toru Sugitate, Yanwen Liu, M. Kopytine, Philippe Rosnet, J. M. Burward-Hoy, A. Glenn, Vladislav Manko, H. Kobayashi, A. Kozlov, S. Zhou, Alexandre Lebedev, R. Seto, W. C. Chang, G. C. Mishra, I. Tserruya, A. K. Purwar, D. M. Lee, G. Bunce, M. D. Marx, Agneta Oskarsson, J. G. Lajoie, Alberto Baldisseri, S. Sawada, J. B. Choi, Jan Rak, W. Guryn, Yu. Efremenko, Takao Sakaguchi, J. D. Tepe, O. Dietzsch, C. Klein-Boesing, Wei Xie, V. Singh, B. Khachaturov, K. N. Barish, Y. Berdnikov, T. Hachiya, R. Granier de Cassagnac, I. Ravinovich, A. Franz, Do-Won Kim, P. J. Kroon, Y. Akiba, Yves Roland Schutz, G. B. Kim, D. Koehler, A. D. Frawley, A. Deshpande, Dipanwita Dutta, François Fleuret, Y. Tanaka, K. El Chenawi, M. R. Shaw, J. Gosset, M. Ono, T. K. Shea, S. Nagamiya, Kazuhiro Tanaka, F. Plasil, T. Matsumoto, T. Chujo, X. Camard, S. S. Kapoor, J. P. Sullivan, V. S. Pantuev, D. Jouan, S. C. Johnson, Roy A. Lacey, D. Pal, T. Ichihara, Klaus Johannes Reygers, Dong-Hun Kim, A. G. Hansen, Shingo Sakai, E. M. Takagui, A. Parmar, Y. J. Mao, N. N. Ajitanand, M. J. Kweon, M. L. Brooks, Norio Saito, Y. Watanabe, Senta Greene, S. H. Aronson, F. K. Wohn, M. Harvey, T. K. Ghosh, Julia Velkovska, M. Nara, A. Isupov, S. S. Ryu, E. P. Hartouni, Matthew G. Reuter, N. Kamihara, Y. Yang, Minghui Liu, M. Chiu, Ajit Kumar Mohanty, Hirohiko Sato, C. P. Singh, B. M. Johnson, Junji Tojo, S. K. Tuli, Shih-Chang Lee, Christine Angela Aidala, A. Soldatov, K. S. Sim, W. Holzmann, I. J. Choi, Joakim Nystrand, F. Matathias, T. A. Shibata, I. D. Ojha, Alexander Malakhov, C. L. Woody, K. Kiyoyama, E. O'Brien, Takahiro Nakamura, Alexander Milov, V. Babintsev, Kenneth Francis Read, M. E. Sadler, S. Butsyk, R. A. Soltz, Hiroaki Ohnishi, L. Aphecetche, J. Milan, S. Yokkaichi, J. M. Heuser, C. L. Silva, O. Drapier, Brian Cole, Vladimir Samsonov, I. Otterlund, A. Drees, K. Imai, K. Okada, A. Durum, D. P. Morrison, Atsushi Taketani, M. Grosse Perdekamp, L. S. Zolin, B. K. Nandi, Masayasu Ishihara, J. G. Boissevain, V. E. Semenov, Susumu Sato, K. Katou, M. Muniruzzaman, D. S. Brown, A. Kiyomichi, C. Pinkenburg, F. Staley, D. Isenhower, M. A. Volkov, H. En'yo, P. Constantin, M. Stepanov, G. Roche, M. J. Leitch, Hideki Hamagaki, G. David, C. H. Kuberg, David Olle Rickard Silvermyr, I. V. Sourikova, H. Torii, P. D. Barnes, A. Yanovich, German Martinez, C. A. Ogilvie, T. L. Thomas, T. K. Hemmick, N. Grau, Yasuo Miake, Ryugo S. Hayano, H. Buesching, P. W. Stankus, Y. Riabov, Kenta Shigaki, L. Kochenda, A. S. Nyanin, J. L. Nagle, Y. Kuroki, T. C. Awes, Kyoichiro Ozawa, Xingguo Li, W. Y. Jang, Jun Kikuchi, V. Ladygin, M. Gonin, K. Kurita, M. Sivertz, T. Kohama, S. Batsouli, A. P.T. Palounek, S. Garpman, H. A. Gustafsson, R. E. Mischke, C. Zhang, Viktor Riabov, S. Esumi, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, Sergey Fokin, A. Hoover, E. J. Desmond, M. Hibino, J. Park, R. Amirikas, I. E. Yushmanov, Jason Newby, J. Murata, Alexei Khanzadeev, N. Bruner, and E. Stenlund
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Phi meson, 01 natural sciences, Nuclear physics, Particle decay, Pion, 0103 physical sciences, Quark–gluon plasma, Transverse mass, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We present the results of phi meson production in the K+K- decay channel from Au+Au collisions at root s(NN) =200 GeV as measured at midrapidity by the PHENIX detector at Brookhaven National Laboratory's Relativistic Heavy Ion Collider. Precision resonance centroid and width values are extracted as a function of collision centrality. No significant variation from the Particle Data Group accepted values is observed, contrary to some model predictions. The phi transverse mass spectra are fitted with a linear exponential function for which the derived inverse slope parameter is seen to be constant as a function of centrality. However, when these data are fitted by a hydrodynamic model the result is that the centrality-dependent freeze-out temperature and the expansion velocity values are consistent with the values previously derived from fitting identified charged hadron data. As a function of transverse momentum the collisions scaled peripheral-to-central yield ratio R-CP for the phi is comparable to that of pions rather than that of protons. This result lends support to theoretical models that distinguish between baryons and mesons instead of particle mass for explaining the anomalous (anti) proton yield.
Published: 2005

155. Dense-medium modifications to jet-induced hadron pair distributions in Au+Au collisions at sqrt s NN=200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D, d'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, O, Drapier, A, Drees, R, du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, N, Hayashi, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, van Hecke, J, Velkovska, M, Velkovsky, V, Veszprémi, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, S J, Zhou, and L, Zolin
Abstract: Azimuthal correlations of jet-induced high-p(T) charged hadron pairs are studied at midrapidity in Au+Au collisions at sqrt[s(NN)]=200 GeV. The distribution of jet-associated partner hadrons (1.0p(T)2.5 GeV/c) per trigger hadron (2.5p(T)4.0 GeV/c) is found to vary with collision centrality, in both shape and yield, indicating a significant effect of the nuclear collision medium on the jet fragmentation process.
Published: 2005

156. Centrality Dependence of Direct Photon Production inSNN=200 GeVAu+AuCollisions

Author: S. S. Adler, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, R. Amirikas, L. Aphecetche, S. H. Aronson, R. Averbeck, T. C. Awes, R. Azmoun, V. Babintsev, A. Baldisseri, K. N. Barish, P. D. Barnes, B. Bassalleck, S. Bathe, S. Batsouli, V. Baublis, A. Bazilevsky, S. Belikov, Y. Berdnikov, S. Bhagavatula, J. G. Boissevain, H. Borel, S. Borenstein, M. L. Brooks, D. S. Brown, N. Bruner, D. Bucher, H. Buesching, V. Bumazhnov, G. Bunce, J. M. Burward-Hoy, S. Butsyk, X. Camard, J.-S. Chai, P. Chand, W. C. Chang, S. Chernichenko, C. Y. Chi, J. Chiba, M. Chiu, I. J. Choi, J. Choi, R. K. Choudhury, T. Chujo, V. Cianciolo, Y. Cobigo, B. A. Cole, P. Constantin, D. d’Enterria, G. David, H. Delagrange, A. Denisov, A. Deshpande, E. J. Desmond, A. Devismes, O. Dietzsch, O. Drapier, A. Drees, R. du Rietz, A. Durum, D. Dutta, Y. V. Efremenko, K. El Chenawi, A. Enokizono, H. En’yo, S. Esumi, L. Ewell, D. E. Fields, F. Fleuret, S. L. Fokin, B. D. Fox, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, S.-Y. Fung, S. Garpman, T. K. Ghosh, A. Glenn, G. Gogiberidze, M. Gonin, J. Gosset, Y. Goto, R. Granier de Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, W. Guryn, H.-Å. Gustafsson, T. Hachiya, J. S. Haggerty, H. Hamagaki, A. G. Hansen, E. P. Hartouni, M. Harvey, R. Hayano, N. Hayashi, X. He, M. Heffner, T. K. Hemmick, J. M. Heuser, M. Hibino, J. C. Hill, W. Holzmann, K. Homma, B. Hong, A. Hoover, T. Ichihara, V. V. Ikonnikov, K. Imai, D. Isenhower, M. Ishihara, M. Issah, A. Isupov, B. V. Jacak, W. Y. Jang, Y. Jeong, J. Jia, O. Jinnouchi, B. M. Johnson, S. C. Johnson, K. S. Joo, D. Jouan, S. Kametani, N. Kamihara, J. H. Kang, S. S. Kapoor, K. Katou, S. Kelly, B. Khachaturov, A. Khanzadeev, J. Kikuchi, D. H. Kim, D. J. Kim, D. W. Kim, E. Kim, G.-B. Kim, H. J. Kim, E. Kistenev, A. Kiyomichi, K. Kiyoyama, C. Klein-Boesing, H. Kobayashi, L. Kochenda, V. Kochetkov, D. Koehler, T. Kohama, M. Kopytine, D. Kotchetkov, A. Kozlov, P. J. Kroon, C. H. Kuberg, K. Kurita, Y. Kuroki, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, V. Ladygin, J. G. Lajoie, A. Lebedev, S. Leckey, D. M. Lee, S. Lee, M. J. Leitch, X. H. Li, H. Lim, A. Litvinenko, M. X. Liu, Y. Liu, C. F. Maguire, Y. I. Makdisi, A. Malakhov, V. I. Manko, Y. Mao, G. Martinez, M. D. Marx, H. Masui, F. Matathias, T. Matsumoto, P. L. McGaughey, E. Melnikov, F. Messer, Y. Miake, J. Milan, T. E. Miller, A. Milov, S. Mioduszewski, R. E. Mischke, G. C. Mishra, J. T. Mitchell, A. K. Mohanty, D. P. Morrison, J. M. Moss, F. Mühlbacher, D. Mukhopadhyay, M. Muniruzzaman, J. Murata, S. Nagamiya, J. L. Nagle, T. Nakamura, B. K. Nandi, M. Nara, J. Newby, P. Nilsson, A. S. Nyanin, J. Nystrand, E. O’Brien, C. A. Ogilvie, H. Ohnishi, I. D. Ojha, K. Okada, M. Ono, V. Onuchin, A. Oskarsson, I. Otterlund, K. Oyama, K. Ozawa, D. Pal, A. P. T. Palounek, V. Pantuev, V. Papavassiliou, J. Park, A. Parmar, S. F. Pate, T. Peitzmann, J.-C. Peng, V. Peresedov, C. Pinkenburg, R. P. Pisani, F. Plasil, M. L. Purschke, A. K. Purwar, J. Rak, I. Ravinovich, K. F. Read, M. Reuter, K. Reygers, V. Riabov, Y. Riabov, G. Roche, A. Romana, M. Rosati, P. Rosnet, S. S. Ryu, M. E. Sadler, N. Saito, T. Sakaguchi, M. Sakai, S. Sakai, V. Samsonov, L. Sanfratello, R. Santo, H. D. Sato, S. Sato, S. Sawada, Y. Schutz, V. Semenov, R. Seto, M. R. Shaw, T. K. Shea, T.-A. Shibata, K. Shigaki, T. Shiina, C. L. Silva, D. Silvermyr, K. S. Sim, C. P. Singh, V. Singh, M. Sivertz, A. Soldatov, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, I. V. Sourikova, F. Staley, P. W. Stankus, E. Stenlund, M. Stepanov, A. Ster, S. P. Stoll, T. Sugitate, J. P. Sullivan, E. M. Takagui, A. Taketani, M. Tamai, K. H. Tanaka, Y. Tanaka, K. Tanida, M. J. Tannenbaum, P. Tarján, J. D. Tepe, T. L. Thomas, J. Tojo, H. Torii, R. S. Towell, I. Tserruya, H. Tsuruoka, S. K. Tuli, H. Tydesjö, N. Tyurin, H. W. van Hecke, J. Velkovska, M. Velkovsky, V. Veszprémi, L. Villatte, A. A. Vinogradov, M. A. Volkov, E. Vznuzdaev, X. R. Wang, Y. Watanabe, S. N. White, F. K. Wohn, C. L. Woody, W. Xie, Y. Yang, A. Yanovich, S. Yokkaichi, G. R. Young, I. E. Yushmanov, W. A. Zajc, C. Zhang, S. Zhou, S. J. Zhou, and L. Zolin
Subjects: Quantum chromodynamics, Physics, Particle physics, Photon, 010308 nuclear & particles physics, General Physics and Astronomy, Order (ring theory), 01 natural sciences, 7. Clean energy, Photon yield, Nuclear physics, 0103 physical sciences, Production (computer science), Nuclear Experiment, 010306 general physics, Centrality
Abstract: The first measurement of direct photons in Au+Au collisions at {radical}(s{sub NN})=200 GeV is presented. The direct photon signal is extracted as a function of the Au+Au collision centrality and compared to next-to-leading order perturbative quantum chromodynamics calculations. The direct photon yield is shown to scale with the number of nucleon-nucleon collisions for all centralities.
Published: 2005

157. 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

158. Publisher's Note: Systematic studies of the centrality andsNNdependence of thedET/dηanddNch/dηin heavy ion collisions at midrapidity [Phys. Rev. C71, 034908 (2005)]

Author: M. Gonin, M. Velkovsky, P. Rosnet, K. Kurita, M. Sivertz, A. A. Vinogradov, Henrik Tydesjö, J. E. Frantz, Jiangyong Jia, Y. Goto, Osamu Jinnouchi, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, H. J. Kim, Senta Greene, M. Nara, Y. I. Makdisi, D. E. Fields, Herve Borel, J. Gosset, J. P. Sullivan, A. Lebedev, I. D. Ojha, Alexander Malakhov, S. Yokkaichi, S. Bathe, S. Kametani, Y. Yang, S. P. Sorensen, Peter M. Nilsson, A. Enokizono, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, A. Taketani, D. Silvermyr, L. S. Zolin, L. Villatte, C. P. Singh, E. M. Takagui, Kensuke Homma, B. M. Johnson, E. Melnikov, A. K. Purwar, K. Kiyoyama, B. K. Nandi, P. D. Barnes, A. Yanovich, V. Bumazhnov, E. O'Brien, M. J. Tannenbaum, S. Chernichenko, J. G. Lajoie, T. Hachiya, H. Lim, S. Lee, A. Isupov, D. Isenhower, W. Guryn, Alexander Milov, R. Lacey, S. Y. Fung, Hideki Hamagaki, G. David, V. V. Ikonnikov, B. Khachaturov, H. Kobayashi, B. D. Fox, R. De Granier Cassagnac, B. Bassalleck, F. Mühlbacher, T. Matsumoto, L. Ewell, German Martinez, N. Kamihara, Y. Tanaka, Agneta Oskarsson, Charles Maguire, T. K. Shea, K. Oyama, Paul Constantin, O. Drapier, H. A. Torii, S. Sawada, Y. Berdnikov, D. Bucher, I. Ravinovich, D. P. Morrison, Brian Cole, G. C. Mishra, Hiroaki Ohnishi, Toru Sugitate, Y. Akiba, J. Milan, J. T. Mitchell, F. Plasil, S. Nagamiya, Kazuhiro Tanaka, Norio Saito, C. H. Kuberg, Youngil Kwon, A. Franz, S. S. Kapoor, W. C. Chang, F. Matathias, J. Chiba, M. Sakai, F. Staley, T. Peitzmann, N. N. Ajitanand, Joakim Nystrand, Klaus Johannes Reygers, S. Leckey, V. E. Semenov, O. Dietzsch, S. C. Johnson, S. S. Ryu, M. Grosse Perdekamp, S. Mioduszewski, E. J. Desmond, P. J. Kroon, J. Murata, K. S. Sim, François Fleuret, Barbara Jacak, J. Rak, Vladislav Manko, S. N. White, R. du Rietz, Josh Moss, Junji Tojo, Takahiro Nakamura, Tatsuya Chujo, H. Delagrange, J. M. Burward-Hoy, M. D. Marx, M. Tamai, Yves Roland Schutz, Jen-Chieh Peng, S. Butsyk, E. Kistenev, A. Drees, S. Zhou, J. D. Tepe, Dipanwita Dutta, Takao Sakaguchi, Henner Buesching, Y. J. Mao, Yanwen Liu, M. Kopytine, M. E. Sadler, A. Durum, D. Pal, A. Ster, K. Tanida, V. I. Kochetkov, X. Camard, T. L.T. Thomas, Xiong Wang, Xingguo Li, Christian Klein-Boesing, A. D. Frawley, J. Newby, Vladimir Samsonov, I. Otterlund, J. B. Choi, W. E. Sondheim, K. Imai, D. S. Brown, Ju Hwan Kang, Julia Velkovska, R. S. Towell, Akio Kiyomichi, V. Babintsev, Dong Jo Kim, P. Chand, A. Parmar, S. H. Aronson, M. Hibino, P. W. Stankus, F. Messer, T. E. Miller, R. Azmoun, S. S. Adler, G. S. Kyle, S. P. Stoll, W. Holzmann, G. Bunce, J.-G. Park, E. P. Hartouni, J. L. Nagle, R. Santo, C. Y. Chi, G. R. Young, I. Tserruya, D. Mukhopadhyay, Y. Cobigo, V. Singh, R. Amirikas, Y. Jeong, D. Jouan, I. E. Yushmanov, M. A. Volkov, Byung-Sik Hong, G. Gogiberidze, A. Bazilevsky, G. B. Kim, D. Koehler, S. F. Pate, C. A. Ogilvie, T. K. Hemmick, T. Kohama, Martin Purschke, C. A. Aidala, A. Glenn, Hirohiko Sato, S. K. Tuli, V. P. Ladygin, Eunja Kim, Yasuo Miake, L. Kochenda, M. Issah, Y. Kuroki, Alberto Baldisseri, D. M. Lee, M. Mendenhall, D. Kotchetkov, S. Bhagavatula, Alexei Khanzadeev, W. Y. Jang, Z. Fraenkel, R. A. Soltz, N. Bruner, E. Stenlund, R. K. Choudhury, V.A. Onuchin, S. Belikov, K. S. Joo, V. Papavassiliou, C. L. Silva, D. H. Kim, Susumu Sato, S. Esumi, M. Muniruzzaman, K. El Chenawi, D. W. Kim, Y. Watanabe, A. Soldatov, C. L. Woody, I. V. Sourikova, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, A. S. Nyanin, S. V. Afanasiev, Yu. Efremenko, L. Aphecetche, J. S. Haggerty, A. Romana, Masamichi Ishihara, H. Van Hecke, J. G. Boissevain, Minghui Liu, M. R. Shaw, Margaret Harvey, K. Katou, N. Grau, M. Heffner, Kenneth Francis Read, C. Pinkenburg, M. Stepanov, G. Roche, T. Ichihara, J. C. Hill, Wei Xie, A. Deshpande, A. G. Hansen, Shingo Sakai, David D'Enterria, I. J. Choi, R. P. Pisani, Nikolay Tyurin, T. C. Awes, Kyoichiro Ozawa, Jun Kikuchi, J. S. Chai, E. Vznuzdaev, P. L. McGaughey, T. Shiina, Ralf Peter Averbeck, X. He, V. Peresedov, H. Tsuruoka, H. Masui, L. Sanfratello, S. Borenstein, K. N. Barish, V. S. Pantuev, M. Ono, S. Batsouli, K. Okada, H. En'yo, M. J. Leitch, M. J. Kweon, M. L. Brooks, A. P.T. Palounek, A. G. Litvinenko, A. Kozlov, R. Seto, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, Sergey Fokin, A. Hoover, S. Garpman, J. Alexander, H. A. Gustafsson, R. E. Mischke, C. Zhang, Viktor Riabov, J. M. Heuser, M. Rosati, P. Tarján, and Sean A. Kelly
Subjects: Nuclear reaction, Nuclear physics, Physics, Nuclear and High Energy Physics, Particle properties, Heavy ion, Impact parameter, Centrality
Published: 2005

159. Midrapidity direct-photon production inp+pcollisions ats=200 GeV

Author: V. Singh, G. B. Kim, D. Koehler, Y. Tanaka, T. K. Shea, M. Rosati, M. Velkovsky, A. Glenn, Hirohiko Sato, S. K. Tuli, S. S. Adler, G. S. Kyle, E. M. Takagui, V. P. Ladygin, F. Staley, Eunja Kim, Y. Jeong, Byung-Sik Hong, Y. I. Makdisi, A. A. Vinogradov, A. Ster, S. Sawada, Henrik Tydesjö, A. Bazilevsky, G. C. Mishra, A. Franz, Wei Xie, A. Deshpande, S. S. Kapoor, S. Batsouli, N. Kamihara, J. Newby, Jiangyong Jia, Y. Goto, J. M. Heuser, V. S. Pantuev, M. Gonin, M. J. Tannenbaum, V. V. Ikonnikov, D. M. Lee, F. Matathias, S. P. Sorensen, David D'Enterria, I. J. Choi, K. Kurita, Peter M. Nilsson, F. Messer, M. Sivertz, J. G. Lajoie, T. Hachiya, S. Lee, R. A. Soltz, Hiroaki Ohnishi, J. Milan, A. Drees, D. Bucher, M. Chiu, Ajit Kumar Mohanty, H. J. Kim, C. L. Silva, D. H. Kim, S. Mioduszewski, E. J. Desmond, S. F. Pate, Jen-Chieh Peng, Yu. Efremenko, Xingguo Li, T. A. Shibata, R. P. Pisani, A. P.T. Palounek, T. Peitzmann, G. Gogiberidze, K. Kiyoyama, K. S. Sim, Alexei Khanzadeev, Xiong Wang, L. Villatte, Dong Jo Kim, K. Okada, B. D. Fox, J. H. Kang, J. S. Haggerty, H. En'yo, A. Romana, M. J. Leitch, M. J. Kweon, C. H. Kuberg, J. Chiba, B. K. Nandi, Nikolay Tyurin, M. Sakai, Susumu Sato, Junji Tojo, S. Leckey, J. M. Burward-Hoy, M. A. Volkov, M. Muniruzzaman, B. Khachaturov, H. Tsuruoka, T. Matsumoto, K. A. Drees, N. Bruner, E. Stenlund, Takao Sakaguchi, V. Papavassiliou, Yves Roland Schutz, D. Isenhower, R. du Rietz, Josh Moss, K. Tanida, German Martinez, W. A. Zajc, V. I. Kochetkov, V. Baublis, M. Tamai, A. Denisov, S. Y. Fung, C. A. Ogilvie, A. G. Hansen, Shingo Sakai, J. Rak, Y. J. Kwon, J. D. Tepe, E. Vznuzdaev, A. D. Frawley, T. K. Hemmick, E. Kistenev, D. Pal, S. H. Aronson, Joakim Nystrand, Ryugo S. Hayano, V. Cianciolo, A. Devismes, Sergey Fokin, A. Hoover, O. Dietzsch, R. S. Towell, Akio Kiyomichi, Yasuo Miake, J. B. Choi, D. W. Kim, T. Shiina, W. Holzmann, L. Sanfratello, S. Borenstein, L. Kochenda, M. Issah, Dipanwita Dutta, Alexander Milov, S. V. Afanasiev, S. Garpman, Y. Kuroki, H. Delagrange, L. Aphecetche, K. Imai, J. Alexander, O. Drapier, D. P. Morrison, T. C. Awes, Y. Riabov, Kenta Shigaki, E. P. Hartouni, A. S. Nyanin, W. Y. Jang, Kyoichiro Ozawa, Jun Kikuchi, S. Butsyk, H. A. Gustafsson, Alberto Baldisseri, Julia Velkovska, Yanwen Liu, M. Kopytine, R. E. Mischke, S. Zhou, V. E. Semenov, J. Gosset, J. P. Sullivan, C. Zhang, K. Oyama, Tatsuya Chujo, A. Lebedev, C. L. Woody, J. S. Chai, M. R. Shaw, Margaret Harvey, Norio Saito, N. Grau, J. T. Mitchell, S. P. Stoll, N. Hayashi, Viktor Riabov, P. L. McGaughey, X. He, H. A. Torii, G. Bunce, Toru Sugitate, J.-G. Park, I. V. Sourikova, Vladislav Manko, M. D. Marx, T. E. Miller, M. Hibino, Ralf Peter Averbeck, V. Babintsev, J. C. Hill, R. Santo, D. Jouan, R. Amirikas, Masamichi Ishihara, S. Yokkaichi, I. E. Yushmanov, Minghui Liu, H. Kobayashi, C. Y. Chi, M. Heffner, V. Peresedov, Kenneth Francis Read, T. Ichihara, G. R. Young, X. Camard, Hideki Hamagaki, H. Van Hecke, G. David, Agneta Oskarsson, J. Murata, A. Parmar, Y. Berdnikov, Y. Akiba, J. G. Boissevain, K. Katou, François Fleuret, S. Nagamiya, Kazuhiro Tanaka, C. Pinkenburg, Klaus Johannes Reygers, S. Kametani, Y. Yang, Osamu Jinnouchi, W. Guryn, M. Stepanov, G. Roche, R. Lacey, C. P. Singh, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, H. Masui, B. M. Johnson, R. Granier de Cassagnac, S. Bathe, Henner Buesching, Charles Maguire, I. D. Ojha, Alexander Malakhov, A. Isupov, P. J. Kroon, D. Silvermyr, D. S. Brown, P. Chand, L. S. Zolin, Christian Klein-Boesing, Brian Cole, P. D. Barnes, A. Yanovich, S. N. White, Kensuke Homma, P. W. Stankus, K. N. Barish, E. Melnikov, P. Rosnet, W. E. Sondheim, M. Ono, S. Chernichenko, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, M. L. Brooks, V.A. Onuchin, A. G. Litvinenko, S. Belikov, K. S. Joo, A. Kozlov, R. Seto, S. Esumi, D. E. Fields, K. El Chenawi, Vladimir Samsonov, I. Otterlund, S. C. Johnson, Y. J. Mao, A. K. Purwar, J. L. Nagle, T. Kohama, V. Bumazhnov, N. N. Ajitanand, Takahiro Nakamura, M. E. Sadler, A. Durum, P. Tarján, Sean A. Kelly, W. C. Chang, Viktor Veszpremi, Barbara Jacak, Martin Purschke, Senta Greene, M. Nara, C. A. Aidala, E. O'Brien, Paul Constantin, D. Kotchetkov, S. Bhagavatula, M. Grosse Perdekamp, Z. Fraenkel, R. K. Choudhury, I. Ravinovich, Y. Watanabe, F. Plasil, A. Soldatov, S. S. Ryu, T. L.T. Thomas, R. Azmoun, D. Mukhopadhyay, Y. Cobigo, J. E. Frantz, Herve Borel, A. Enokizono, A. Taketani, and I. Tserruya
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Perturbative QCD, 01 natural sciences, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics
Abstract: A measurement of direct photons in $p+p$ collisions at $\sqrt{s}=200\text{ }\text{ }\mathrm{GeV}$ is presented. A photon excess above background from ${\ensuremath{\pi}}^{0}\ensuremath{\rightarrow}\ensuremath{\gamma}+\ensuremath{\gamma}$, $\ensuremath{\eta}\ensuremath{\rightarrow}\ensuremath{\gamma}+\ensuremath{\gamma}$ and other decays is observed in the transverse momentum range $5.5l{p}_{\mathrm{T}}l7\text{ }\text{ }\mathrm{GeV}/c$. The result is compared to a next-to-leading-order perturbative QCD calculation. Within errors, good agreement is found between the QCD calculation and the measured result.
Published: 2005

160. Deuteron and Antideuteron Production inAu+AuCollisions atsNN=200 GeV

Author: S. S. Adler, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, R. Amirikas, L. Aphecetche, S. H. Aronson, R. Averbeck, T. C. Awes, R. Azmoun, V. Babintsev, A. Baldisseri, K. N. Barish, P. D. Barnes, B. Bassalleck, S. Bathe, S. Batsouli, V. Baublis, A. Bazilevsky, S. Belikov, Y. Berdnikov, S. Bhagavatula, J. G. Boissevain, H. Borel, S. Borenstein, M. L. Brooks, D. S. Brown, N. Bruner, D. Bucher, H. Buesching, V. Bumazhnov, G. Bunce, J. M. Burward-Hoy, S. Butsyk, X. Camard, J.-S. Chai, P. Chand, W. C. Chang, S. Chernichenko, C. Y. Chi, J. Chiba, M. Chiu, I. J. Choi, J. Choi, R. K. Choudhury, T. Chujo, V. Cianciolo, Y. Cobigo, B. A. Cole, P. Constantin, D. d’Enterria, G. David, H. Delagrange, A. Denisov, A. Deshpande, E. J. Desmond, A. Devismes, O. Dietzsch, O. Drapier, A. Drees, R. du Rietz, A. Durum, D. Dutta, Y. V. Efremenko, K. El Chenawi, A. Enokizono, H. En’yo, S. Esumi, L. Ewell, D. E. Fields, F. Fleuret, S. L. Fokin, B. D. Fox, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, S.-Y. Fung, S. Garpman, T. K. Ghosh, A. Glenn, G. Gogiberidze, M. Gonin, J. Gosset, Y. Goto, R. Granier de Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, W. Guryn, H.-Å. Gustafsson, T. Hachiya, J. S. Haggerty, H. Hamagaki, A. G. Hansen, E. P. Hartouni, M. Harvey, R. Hayano, N. Hayashi, X. He, M. Heffner, T. K. Hemmick, J. M. Heuser, M. Hibino, J. C. Hill, W. Holzmann, K. Homma, B. Hong, A. Hoover, T. Ichihara, V. V. Ikonnikov, K. Imai, D. Isenhower, M. Ishihara, M. Issah, A. Isupov, B. V. Jacak, W. Y. Jang, Y. Jeong, J. Jia, O. Jinnouchi, B. M. Johnson, S. C. Johnson, K. S. Joo, D. Jouan, S. Kametani, N. Kamihara, J. H. Kang, S. S. Kapoor, K. Katou, S. Kelly, B. Khachaturov, A. Khanzadeev, J. Kikuchi, D. H. Kim, D. J. Kim, D. W. Kim, E. Kim, G.-B. Kim, H. J. Kim, E. Kistenev, A. Kiyomichi, K. Kiyoyama, C. Klein-Boesing, H. Kobayashi, L. Kochenda, V. Kochetkov, D. Koehler, T. Kohama, M. Kopytine, D. Kotchetkov, A. Kozlov, P. J. Kroon, C. H. Kuberg, K. Kurita, Y. Kuroki, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, V. Ladygin, J. G. Lajoie, A. Lebedev, S. Leckey, D. M. Lee, S. Lee, M. J. Leitch, X. H. Li, H. Lim, A. Litvinenko, M. X. Liu, Y. Liu, C. F. Maguire, Y. I. Makdisi, A. Malakhov, V. I. Manko, Y. Mao, G. Martinez, M. D. Marx, H. Masui, F. Matathias, T. Matsumoto, P. L. McGaughey, E. Melnikov, F. Messer, Y. Miake, J. Milan, T. E. Miller, A. Milov, S. Mioduszewski, R. E. Mischke, G. C. Mishra, J. T. Mitchell, A. K. Mohanty, D. P. Morrison, J. M. Moss, F. Mühlbacher, D. Mukhopadhyay, M. Muniruzzaman, J. Murata, S. Nagamiya, J. L. Nagle, T. Nakamura, B. K. Nandi, M. Nara, J. Newby, P. Nilsson, A. S. Nyanin, J. Nystrand, E. O’Brien, C. A. Ogilvie, H. Ohnishi, I. D. Ojha, K. Okada, M. Ono, V. Onuchin, A. Oskarsson, I. Otterlund, K. Oyama, K. Ozawa, D. Pal, A. P. T. Palounek, V. Pantuev, V. Papavassiliou, J. Park, A. Parmar, S. F. Pate, T. Peitzmann, J.-C. Peng, V. Peresedov, C. Pinkenburg, R. P. Pisani, F. Plasil, M. L. Purschke, A. K. Purwar, J. Rak, I. Ravinovich, K. F. Read, M. Reuter, K. Reygers, V. Riabov, Y. Riabov, G. Roche, A. Romana, M. Rosati, P. Rosnet, S. S. Ryu, M. E. Sadler, N. Saito, T. Sakaguchi, M. Sakai, S. Sakai, V. Samsonov, L. Sanfratello, R. Santo, H. D. Sato, S. Sato, S. Sawada, Y. Schutz, V. Semenov, R. Seto, M. R. Shaw, T. K. Shea, T.-A. Shibata, K. Shigaki, T. Shiina, C. L. Silva, D. Silvermyr, K. S. Sim, C. P. Singh, V. Singh, M. Sivertz, A. Soldatov, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, I. V. Sourikova, F. Staley, P. W. Stankus, E. Stenlund, M. Stepanov, A. Ster, S. P. Stoll, T. Sugitate, J. P. Sullivan, E. M. Takagui, A. Taketani, M. Tamai, K. H. Tanaka, Y. Tanaka, K. Tanida, M. J. Tannenbaum, P. Tarján, J. D. Tepe, T. L. Thomas, J. Tojo, H. Torii, R. S. Towell, I. Tserruya, H. Tsuruoka, S. K. Tuli, H. Tydesjö, N. Tyurin, H. W. van Hecke, J. Velkovska, M. Velkovsky, V. Veszprémi, L. Villatte, A. A. Vinogradov, M. A. Volkov, E. Vznuzdaev, X. R. Wang, Y. Watanabe, S. N. White, F. K. Wohn, C. L. Woody, W. Xie, Y. Yang, A. Yanovich, S. Yokkaichi, G. R. Young, I. E. Yushmanov, W. A. Zajc, C. Zhang, S. Zhou, S. J. Zhou, and L. Zolin
Subjects: Physics, Coalescence (physics), Particle physics, 010308 nuclear & particles physics, Nuclear Theory, General Physics and Astronomy, 01 natural sciences, Spectral line, Nuclear physics, Deuterium, Antiproton, Phase space, 0103 physical sciences, Transverse momentum, Yield ratio, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: The production of deuterons and antideuterons in the transverse momentum range 1.1 < p(T)< 4.3 GeV/c at midrapidity in Au+Au collisions at root s(NN) = 200 GeV has been studied by the PHENIX experiment at RHIC. A coalescence analysis, comparing the deuteron and antideuteron spectra with that of proton and antiproton, has been performed. The coalescence probability is equal for both deuterons and antideuterons and it increases as a function of p(T), which is consistent with an expanding collision zone. Comparing (anti)proton yields, (p) over bar /p = 0.73 +/- 0.01, with (anti)deuteron yields, (d) over bar /d = 0.47 +/- 0.03, we estimate that (n) over bar /n = 0.64 +/- 0.04. The nucleon phase space density is estimated from the coalescence measurement.
Published: 2005

161. Systematic studies of the centrality andsNNdependence of thedET/dηanddNch/dηin heavy ion collisions at midrapidity

Author: M. Rosati, R. S. Towell, P. Chand, Sean A. Kelly, V.A. Onuchin, M. Velkovsky, S. Belikov, K. S. Joo, F. Plasil, Y. I. Makdisi, S. F. Pate, B. D. Fox, Alexander Milov, A. A. Vinogradov, Henrik Tydesjö, V. Bumazhnov, S. Afanasiev, N. Grau, O. Drapier, S. Garpman, Jiangyong Jia, S. P. Sorensen, H. Tsuruoka, Y. Goto, D. P. Morrison, A. Isupov, A. Ster, S. S. Ryu, H. J. Kim, X. R. Wang, M. J. Tannenbaum, C. Y. Chi, E. H. Kim, V. E. Semenov, Y. J. Kwon, H. A. Gustafsson, L. Sanfratello, Peter M. Nilsson, C. L. Silva, V. V. Ikonnikov, I. Tserruya, P. W. Stankus, F. Messer, T. C. Awes, Kyoichiro Ozawa, L. Villatte, K. El Chenawi, M. R. Shaw, Jun Kikuchi, G. R. Young, P. Tarján, S. Borenstein, Yu. Efremenko, V. Singh, Martin Purschke, S. Zhou, R. E. Mischke, C. Zhang, W. C. Chang, S. P. Stoll, K. N. Barish, M. Heffner, M. Issah, G. B. Kim, Charles Maguire, S. Leckey, Masayasu Ishihara, J. G. Lajoie, T. Hachiya, J. B. Choi, O. Dietzsch, D. Koehler, M. Mendenhall, Roy A. Lacey, R. du Rietz, Josh Moss, Senta Greene, G. Bunce, D. Bucher, Susumu Sato, D. Durum, V. Papavassiliou, G. Gogiberidze, Jan Rak, E. Vznuzdaev, W. Guryn, M. Tamai, J. Chiba, M. Sakai, M. Muniruzzaman, Minghui Liu, D. Kotchetkov, S. Bhagavatula, M. Ono, E. P. Hartouni, M. Nara, J. E. Frantz, V. S. Pantuev, Julia Velkovska, M. Harvey, T. Peitzmann, Saskia Mioduszewski, Viktor Riabov, S. Butsyk, Vladimir Samsonov, E. Kistenev, Kenneth Francis Read, R. Granier de Cassagnac, B. Khachaturov, I. J. Choi, G. C. Mishra, F. Staley, K. Tanida, T. Shiina, Z. Fraenkel, I. Otterlund, Junji Tojo, D. Jouan, Hirohiko Sato, S. K. Tuli, K. Okada, M. A. Volkov, S. Esumi, T. Matsumoto, A. Glenn, R. K. Choudhury, H. En'yo, P. Constantin, M. J. Leitch, Yves Roland Schutz, J. S. Chai, E. O'Brien, D. Pal, W. A. Zajc, M. L. Brooks, Do-Won Kim, P. J. Kroon, Takao Sakaguchi, V. Ladygin, M. Gonin, C. Klein-Boesing, R. A. Soltz, H. Borel, V. Baublis, P. L. McGaughey, V. I. Kochetkov, S. Sawada, Shih-Chang Lee, J. D. Tepe, S. C. Johnson, A. Franz, Y. J. Mao, M. J. Kweon, Dong-Hun Kim, C. A. Ogilvie, T. K. Hemmick, Jen-Chieh Peng, E. M. Takagui, J. L. Nagle, A. Denisov, Yasuo Miake, V. Cianciolo, Y. Tanaka, J. M. Burward-Hoy, Y. Yang, Joakim Nystrand, A. D. Frawley, K. S. Sim, M. Grosse Perdekamp, Sergey Fokin, J. Gosset, T. K. Shea, S. S. Kapoor, A. G. Litvinenko, C. P. Singh, T. Kohama, J. P. Sullivan, Dong Jo Kim, B. M. Johnson, Wei Xie, L. Kochenda, K. Kurita, S. H. Aronson, A. Hoover, S. S. Adler, G. S. Kyle, Y. Kuroki, W. Y. Jang, Osamu Jinnouchi, A. G. Hansen, A. Kozlov, S. Y. Fung, W. Holzmann, James Alexander, S. Batsouli, K. Imai, R. Seto, Atsushi Taketani, M. Sivertz, Shingo Sakai, David Olle Rickard Silvermyr, A. Deshpande, Brian Cole, David D'Enterria, R. Azmoun, Y. Jeong, R. Averbeck, Byung-Sik Hong, R. P. Pisani, X. He, C. L. Woody, Nikolay Tyurin, D. Mukhopadhyay, V. Peresedov, A. Bazilevsky, Hiroaki Ohnishi, J. Milan, Y. Cobigo, A. P.T. Palounek, Y. Watanabe, Philippe Rosnet, Hideki Hamagaki, G. David, H. Buesching, H. Masui, C. H. Kuberg, Xingguo Li, Alexandre Lebedev, I. V. Sourikova, H. Torii, T. L. Thomas, D. M. Lee, Ryugo S. Hayano, Y. Riabov, A. Soldatov, Kenta Shigaki, A. S. Nyanin, John Hill, K. Oyama, Yi Liu, S. Yokkaichi, A. Dutta, Toru Sugitate, Norio Saito, L. Aphecetche, J. M. Heuser, V. Babintsev, François Fleuret, S. N. White, J. G. Boissevain, W. E. Sondheim, T. Ichihara, F. K. Wohn, K. Katou, T. K. Ghosh, Matthew G. Reuter, I. D. Ojha, Alexander Malakhov, L. S. Zolin, P. D. Barnes, A. Yanovich, A. Kiyomichi, C. Pinkenburg, M. Stepanov, G. Roche, S. Kametani, J. H. Kang, J. S. Haggerty, A. Romana, E. J. Desmond, M. Hibino, J. Park, R. Amirikas, I. E. Yushmanov, Jason Newby, J. Murata, Alexei Khanzadeev, N. Bruner, E. Stenlund, H. Kobayashi, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, S. Nagamiya, Kazuhiro Tanaka, Klaus Johannes Reygers, H. W. Van Hecke, D. E. Fields, B. V. Jacak, A. K. Purwar, N. N. Ajitanand, Takahiro Nakamura, M. E. Sadler, N. Kamihara, F. Matathias, D. S. Brown, A. Drees, T. E. Miller, R. Santo, A. Enokizono, S. Bathe, Kensuke Homma, H. Delagrange, E. Melnikov, S. Chernichenko, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, M. Kopytine, A. Baldisseri, J. T. Mitchell, Vladislav Manko, M. D. Marx, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, K. Kiyoyama, B. K. Nandi, D. Isenhower, German Martinez, T. Chujo, X. Camard, A. Parmar, Christine Angela Aidala, and I. Ravinovich
Subjects: Excitation function, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Theoretical models, 01 natural sciences, Charged particle, Nuclear physics, 0103 physical sciences, Heavy ion, Multiplicity (chemistry), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Centrality
Abstract: The PHENIX experiment at the relativistic heavy ion collider (RHIC) has measured transverse energy and charged particle multiplicity at midrapidity in $\mathrm{Au}+\mathrm{Au}$ collisions at center-of-mass energies $\sqrt{{s}_{\mathrm{NN}}}=19.6,130$, and $200\phantom{\rule{0.3em}{0ex}}\text{GeV}$ as a function of centrality. The presented results are compared to measurements from other RHIC experiments and experiments at lower energies. The $\sqrt{{s}_{\mathrm{NN}}}$ dependence of $dE{}_{T}/d\ensuremath{\eta}$ and $dN{}_{\mathrm{ch}}/d\ensuremath{\eta}$ per pair of participants is consistent with logarithmic scaling for the most central events. The centrality dependence of $dE{}_{T}/d\ensuremath{\eta}$ and $dN{}_{\mathrm{ch}}/d\ensuremath{\eta}$ is similar at all measured incident energies. At RHIC energies, the ratio of transverse energy per charged particle was found to be independent of centrality and growing slowly with $\sqrt{{s}_{\mathrm{NN}}}$. A survey of comparisons between the data and available theoretical models is also presented.
Published: 2005

162. Centrality dependence of direct photon production in (square root)S(NN) = 200 GeV Au + Au collisions

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D, d'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, O, Drapier, A, Drees, R, du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M Grosse, Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, N, Hayashi, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, van Hecke, J, Velkovska, M, Velkovsky, V, Veszprémi, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, S J, Zhou, and L, Zolin
Abstract: The first measurement of direct photons in Au + Au collisions at (square root)S(NN) = 200 GeV is presented. The direct photon signal is extracted as a function of the Au + Au collision centrality and compared to next-to-leading order perturbative quantum chromodynamics calculations. The direct photon yield is shown to scale with the number of nucleon-nucleon collisions for all centralities.
Published: 2005

163. Nuclear Modification Factors for Hadrons at Forward and Backward Rapidities in Deuteron-Gold Collisions atsNN=200 GeV

Author: S. S. Adler, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, A. Al-Jamel, J. Alexander, K. Aoki, L. Aphecetche, R. Armendariz, S. H. Aronson, R. Averbeck, T. C. Awes, V. Babintsev, A. Baldisseri, K. N. Barish, P. D. Barnes, B. Bassalleck, S. Bathe, S. Batsouli, V. Baublis, F. Bauer, A. Bazilevsky, S. Belikov, M. T. Bjorndal, J. G. Boissevain, H. Borel, M. L. Brooks, D. S. Brown, N. Bruner, D. Bucher, H. Buesching, V. Bumazhnov, G. Bunce, J. M. Burward-Hoy, S. Butsyk, X. Camard, P. Chand, W. C. Chang, S. Chernichenko, C. Y. Chi, J. Chiba, M. Chiu, I. J. Choi, R. K. Choudhury, T. Chujo, V. Cianciolo, Y. Cobigo, B. A. Cole, M. P. Comets, P. Constantin, M. Csanád, T. Csörgő, J. P. Cussonneau, D. d'Enterria, K. Das, G. David, F. Deák, H. Delagrange, A. Denisov, A. Deshpande, E. J. Desmond, A. Devismes, O. Dietzsch, J. L. Drachenberg, O. Drapier, A. Drees, A. Durum, D. Dutta, V. Dzhordzhadze, Y. V. Efremenko, H. En'yo, B. Espagnon, S. Esumi, D. E. Fields, C. Finck, F. Fleuret, S. L. Fokin, B. D. Fox, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, Y. Fukao, S.-Y. Fung, S. Gadrat, M. Germain, A. Glenn, M. Gonin, J. Gosset, Y. Goto, R. Granier de Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, H.-Å. Gustafsson, T. Hachiya, J. S. Haggerty, H. Hamagaki, A. G. Hansen, E. P. Hartouni, M. Harvey, K. Hasuko, R. Hayano, X. He, M. Heffner, T. K. Hemmick, J. M. Heuser, P. Hidas, H. Hiejima, J. C. Hill, R. Hobbs, W. Holzmann, K. Homma, B. Hong, A. Hoover, T. Horaguchi, T. Ichihara, V. V. Ikonnikov, K. Imai, M. Inaba, M. Inuzuka, D. Isenhower, L. Isenhower, M. Ishihara, M. Issah, A. Isupov, B. V. Jacak, J. Jia, O. Jinnouchi, B. M. Johnson, S. C. Johnson, K. S. Joo, D. Jouan, F. Kajihara, S. Kametani, N. Kamihara, M. Kaneta, J. H. Kang, K. Katou, T. Kawabata, A. Kazantsev, S. Kelly, B. Khachaturov, A. Khanzadeev, J. Kikuchi, D. J. Kim, E. Kim, G.-B. Kim, H. J. Kim, E. Kinney, A. Kiss, E. Kistenev, A. Kiyomichi, C. Klein-Boesing, H. Kobayashi, L. Kochenda, V. Kochetkov, R. Kohara, B. Komkov, M. Konno, D. Kotchetkov, A. Kozlov, P. J. Kroon, C. H. Kuberg, G. J. Kunde, K. Kurita, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, J. G. Lajoie, Y. Le Bornec, A. Lebedev, S. Leckey, D. M. Lee, M. J. Leitch, M. A. L. Leite, X. H. Li, H. Lim, A. Litvinenko, M. X. Liu, C. F. Maguire, Y. I. Makdisi, A. Malakhov, V. I. Manko, Y. Mao, G. Martinez, H. Masui, F. Matathias, T. Matsumoto, M. C. McCain, P. L. McGaughey, Y. Miake, T. E. Miller, A. Milov, S. Mioduszewski, G. C. Mishra, J. T. Mitchell, A. K. Mohanty, D. P. Morrison, J. M. Moss, D. Mukhopadhyay, M. Muniruzzaman, S. Nagamiya, J. L. Nagle, T. Nakamura, J. Newby, A. S. Nyanin, J. Nystrand, E. O'Brien, C. A. Ogilvie, H. Ohnishi, I. D. Ojha, H. Okada, K. Okada, A. Oskarsson, I. Otterlund, K. Oyama, K. Ozawa, D. Pal, A. P. T. Palounek, V. Pantuev, V. Papavassiliou, J. Park, W. J. Park, S. F. Pate, H. Pei, V. Penev, J.-C. Peng, H. Pereira, V. Peresedov, A. Pierson, C. Pinkenburg, R. P. Pisani, M. L. Purschke, A. K. Purwar, J. M. Qualls, J. Rak, I. Ravinovich, K. F. Read, M. Reuter, K. Reygers, V. Riabov, Y. Riabov, G. Roche, A. Romana, M. Rosati, S. S. E. Rosendahl, P. Rosnet, V. L. Rykov, S. S. Ryu, N. Saito, T. Sakaguchi, S. Sakai, V. Samsonov, L. Sanfratello, R. Santo, H. D. Sato, S. Sato, S. Sawada, Y. Schutz, V. Semenov, R. Seto, T. K. Shea, I. Shein, T.-A. Shibata, K. Shigaki, M. Shimomura, A. Sickles, C. L. Silva, D. Silvermyr, K. S. Sim, A. Soldatov, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, I. V. Sourikova, F. Staley, P. W. Stankus, E. Stenlund, M. Stepanov, A. Ster, S. P. Stoll, T. Sugitate, J. P. Sullivan, S. Takagi, E. M. Takagui, A. Taketani, K. H. Tanaka, Y. Tanaka, K. Tanida, M. J. Tannenbaum, A. Taranenko, P. Tarján, T. L. Thomas, M. Togawa, J. Tojo, H. Torii, R. S. Towell, V-N. Tram, I. Tserruya, Y. Tsuchimoto, H. Tydesjö, N. Tyurin, T. J. Uam, H. W. van Hecke, J. Velkovska, M. Velkovsky, V. Veszprémi, A. A. Vinogradov, M. A. Volkov, E. Vznuzdaev, X. R. Wang, Y. Watanabe, S. N. White, N. Willis, F. K. Wohn, C. L. Woody, W. Xie, A. Yanovich, S. Yokkaichi, G. R. Young, I. E. Yushmanov, W. A. Zajc, C. Zhang, S. Zhou, J. Zimányi, L. Zolin, and X. Zong
Subjects: Physics, Particle physics, Range (particle radiation), 010308 nuclear & particles physics, Nuclear Theory, Hadron, General Physics and Astronomy, Parton, 01 natural sciences, Nuclear physics, Momentum, medicine.anatomical_structure, Deuterium, 0103 physical sciences, medicine, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Nucleus, Scaling
Abstract: We report on charged hadron production in deuteron-gold reactions at roots(NN) = 200 GeV. Our measurements in the deuteron direction cover 1.4
Published: 2005

164. Centrality Dependence of Charm Production from a Measurement of Single Electrons inAu+AuCollisions atsNN=200 GeV

Author: S. S. Adler, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, J. Alexander, R. Amirikas, L. Aphecetche, S. H. Aronson, R. Averbeck, T. C. Awes, R. Azmoun, V. Babintsev, A. Baldisseri, K. N. Barish, P. D. Barnes, B. Bassalleck, S. Bathe, S. Batsouli, V. Baublis, A. Bazilevsky, S. Belikov, Y. Berdnikov, S. Bhagavatula, J. G. Boissevain, H. Borel, S. Borenstein, M. L. Brooks, D. S. Brown, N. Bruner, D. Bucher, H. Buesching, V. Bumazhnov, G. Bunce, J. M. Burward-Hoy, S. Butsyk, X. Camard, J.-S. Chai, P. Chand, W. C. Chang, S. Chernichenko, C. Y. Chi, J. Chiba, M. Chiu, I. J. Choi, J. Choi, R. K. Choudhury, T. Chujo, V. Cianciolo, Y. Cobigo, B. A. Cole, P. Constantin, D. G. d'Enterria, G. David, H. Delagrange, A. Denisov, A. Deshpande, E. J. Desmond, A. Devismes, O. Dietzsch, O. Drapier, A. Drees, R. du Rietz, A. Durum, D. Dutta, Y. V. Efremenko, K. El Chenawi, A. Enokizono, H. En'yo, S. Esumi, L. Ewell, D. E. Fields, F. Fleuret, S. L. Fokin, B. D. Fox, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, S.-Y. Fung, S. Garpman, T. K. Ghosh, A. Glenn, G. Gogiberidze, M. Gonin, J. Gosset, Y. Goto, R. Granier de Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, W. Guryn, H.-Å. Gustafsson, T. Hachiya, J. S. Haggerty, H. Hamagaki, A. G. Hansen, E. P. Hartouni, M. Harvey, R. Hayano, N. Hayashi, X. He, M. Heffner, T. K. Hemmick, J. M. Heuser, M. Hibino, J. C. Hill, W. Holzmann, K. Homma, B. Hong, A. Hoover, T. Ichihara, V. V. Ikonnikov, K. Imai, D. Isenhower, M. Ishihara, M. Issah, A. Isupov, B. V. Jacak, W. Y. Jang, Y. Jeong, J. Jia, O. Jinnouchi, B. M. Johnson, S. C. Johnson, K. S. Joo, D. Jouan, S. Kametani, N. Kamihara, J. H. Kang, S. S. Kapoor, K. Katou, S. Kelly, B. Khachaturov, A. Khanzadeev, J. Kikuchi, D. H. Kim, D. J. Kim, D. W. Kim, E. Kim, G.-B. Kim, H. J. Kim, E. Kistenev, A. Kiyomichi, K. Kiyoyama, C. Klein-Boesing, H. Kobayashi, L. Kochenda, V. Kochetkov, D. Koehler, T. Kohama, M. Kopytine, D. Kotchetkov, A. Kozlov, P. J. Kroon, C. H. Kuberg, K. Kurita, Y. Kuroki, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, V. Ladygin, J. G. Lajoie, A. Lebedev, S. Leckey, D. M. Lee, S. Lee, M. J. Leitch, X. H. Li, H. Lim, A. Litvinenko, M. X. Liu, Y. Liu, C. F. Maguire, Y. I. Makdisi, A. Malakhov, V. I. Manko, Y. Mao, G. Martinez, M. D. Marx, H. Masui, F. Matathias, T. Matsumoto, P. L. McGaughey, E. Melnikov, F. Messer, Y. Miake, J. Milan, T. E. Miller, A. Milov, S. Mioduszewski, R. E. Mischke, G. C. Mishra, J. T. Mitchell, A. K. Mohanty, D. P. Morrison, J. M. Moss, F. Mühlbacher, D. Mukhopadhyay, M. Muniruzzaman, J. Murata, S. Nagamiya, J. L. Nagle, T. Nakamura, B. K. Nandi, M. Nara, J. Newby, P. Nilsson, A. S. Nyanin, J. Nystrand, E. O'Brien, C. A. Ogilvie, H. Ohnishi, I. D. Ojha, K. Okada, M. Ono, V. Onuchin, A. Oskarsson, I. Otterlund, K. Oyama, K. Ozawa, D. Pal, A. P. T. Palounek, V. S. Pantuev, V. Papavassiliou, J. Park, A. Parmar, S. F. Pate, T. Peitzmann, J.-C. Peng, V. Peresedov, C. Pinkenburg, R. P. Pisani, F. Plasil, M. L. Purschke, A. K. Purwar, J. Rak, I. Ravinovich, K. F. Read, M. Reuter, K. Reygers, V. Riabov, Y. Riabov, G. Roche, A. Romana, M. Rosati, P. Rosnet, S. S. Ryu, M. E. Sadler, N. Saito, T. Sakaguchi, M. Sakai, S. Sakai, V. Samsonov, L. Sanfratello, R. Santo, H. D. Sato, S. Sato, S. Sawada, Y. Schutz, V. Semenov, R. Seto, M. R. Shaw, T. K. Shea, T.-A. Shibata, K. Shigaki, T. Shiina, C. L. Silva, D. Silvermyr, K. S. Sim, C. P. Singh, V. Singh, M. Sivertz, A. Soldatov, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, I. V. Sourikova, F. Staley, P. W. Stankus, E. Stenlund, M. Stepanov, A. Ster, S. P. Stoll, T. Sugitate, J. P. Sullivan, E. M. Takagui, A. Taketani, M. Tamai, K. H. Tanaka, Y. Tanaka, K. Tanida, M. J. Tannenbaum, P. Tarján, J. D. Tepe, T. L. Thomas, J. Tojo, H. Torii, R. S. Towell, I. Tserruya, H. Tsuruoka, S. K. Tuli, H. Tydesjö, N. Tyurin, H. W. van Hecke, J. Velkovska, M. Velkovsky, V. Veszprémi, L. Villatte, A. A. Vinogradov, M. A. Volkov, E. Vznuzdaev, X. R. Wang, Y. Watanabe, S. N. White, F. K. Wohn, C. L. Woody, W. Xie, Y. Yang, A. Yanovich, S. Yokkaichi, G. R. Young, I. E. Yushmanov, W. A. Zajc, C. Zhang, S. Zhou, S. J. Zhou, and L. Zolin
Subjects: Quark, Physics, Particle physics, Photon, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hadron, General Physics and Astronomy, Electron, 7. Clean energy, 01 natural sciences, Spectral line, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Charm (quantum number), Nuclear Experiment, 010306 general physics, Bar (unit)
Abstract: The PHENIX experiment has measured midrapidity transverse momentum spectra (0.4
Published: 2005

165. Benchmarks and implementation of the ALICE high level trigger

Author: R. W. Fearick, T.M. Steinbeck, A. Vestbo, Z. Vilakazi, Matthias Richter, Constantin Loizides, Cvetan Valeriev Cheshkov, Kjetil Ullaland, Arne Wiebalck, Volker Lindenstruth, T. Vik, Jean Willy Andre Cleymans, T. Alt, F. Staley, G. de Vaux, Dieter Røhrich, Bruce Becker, Haavard Helstrup, Bernhard Skaali, H. Appelshäuser, C. Cicalo, Artur Krzysztof Szostak, Sukalyan Chattopadhyay, and H. Tilsner
Subjects: Event (computing), business.industry, Computer science, Real-time computing, Data flow diagram, Data acquisition, Software, Scalability, Pattern recognition (psychology), VHDL, business, Field-programmable gate array, computer, Computer hardware, computer.programming_language
Abstract: The ALICE high level trigger combines and processes the full information from all major detectors in a large computer cluster. Data rate reduction is achieved by reducing the event rate by selecting interesting events (software trigger) and by reducing the event size by selecting sub-events and by advanced data compression. Reconstruction chains for the barrel detectors and the forward muon spectrometer have been benchmarked. The HLT receives a replica of the raw data via the standard ALICE DDL link into a custom PCI receiver card (HLT-RORC). These boards also provide a FPGA co-processor for data-intensive tasks of pattern recognition. Some of the pattern recognition algorithms (cluster finder, Hough transformation) have been re-designed in VHDL to be executed in the Virtex-4 FPGA on the HLT-RORC. HLT prototypes were operated during the beam tests of the TPC and TRD detectors. The input and output interfaces to DAQ and the data flow inside of HLT were successfully tested. A full-scale prototype of the dimuon-HLT achieved the expected data flow performance. This system was finally embedded in a GRID-like system of several distributed clusters demonstrating the scalability and fault-tolerance of the HLT
Published: 2005

166. A Beginning: Signification, Story, and Discourse in Joyce’s ‘The Sisters’

Author: Thomas F. Staley
Subjects: media_common.quotation_subject, Art, media_common
Published: 2005

167. Nuclear modification factors for hadrons at forward and backward rapidities in deuteron-gold collisions at sqrt[s(NN)]=200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, A, Al-Jamel, J, Alexander, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, R, Averbeck, T C, Awes, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, F, Bauer, A, Bazilevsky, S, Belikov, M T, Bjorndal, J G, Boissevain, H, Borel, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, J P, Cussonneau, D, d'Enterria, K, Das, G, David, F, Deák, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, J L, Drachenberg, O, Drapier, A, Drees, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, H, En'yo, B, Espagnon, S, Esumi, D E, Fields, C, Finck, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, Y, Fukao, S-Y, Fung, S, Gadrat, M, Germain, A, Glenn, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, K, Hasuko, R, Hayano, X, He, M, Heffner, T K, Hemmick, J M, Heuser, P, Hidas, H, Hiejima, J C, Hill, R, Hobbs, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Horaguchi, T, Ichihara, V V, Ikonnikov, K, Imai, M, Inaba, M, Inuzuka, D, Isenhower, L, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, M, Kaneta, J H, Kang, K, Katou, T, Kawabata, A, Kazantsev, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D J, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kinney, A, Kiss, E, Kistenev, A, Kiyomichi, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, R, Kohara, B, Komkov, M, Konno, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, G J, Kunde, K, Kurita, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, J G, Lajoie, Y, Le Bornec, A, Lebedev, S, Leckey, D M, Lee, M J, Leitch, M A L, Leite, X H, Li, H, Lim, A, Litvinenko, M X, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, H, Masui, F, Matathias, T, Matsumoto, M C, McCain, P L, McGaughey, Y, Miake, T E, Miller, A, Milov, S, Mioduszewski, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, D, Mukhopadhyay, M, Muniruzzaman, S, Nagamiya, J L, Nagle, T, Nakamura, J, Newby, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, H, Okada, K, Okada, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, V, Penev, J-C, Peng, H, Pereira, V, Peresedov, A, Pierson, C, Pinkenburg, R P, Pisani, M L, Purschke, A K, Purwar, J M, Qualls, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, S S E, Rosendahl, P, Rosnet, V L, Rykov, S S, Ryu, N, Saito, T, Sakaguchi, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, T K, Shea, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, A, Sickles, C L, Silva, D, Silvermyr, K S, Sim, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, S, Takagi, E M, Takagui, A, Taketani, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, T L, Thomas, M, Togawa, J, Tojo, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, H, Tydesjö, N, Tyurin, T J, Uam, H W, van Hecke, J, Velkovska, M, Velkovsky, V, Veszprémi, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, N, Willis, F K, Wohn, C L, Woody, W, Xie, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, J, Zimányi, L, Zolin, and X, Zong
Abstract: We report on charged hadron production in deuteron-gold reactions at sqrt[s(NN)]=200 GeV. Our measurements in the deuteron direction cover 1.4eta2.2, referred to as forward rapidity, and in the gold direction -2.0eta-1.4, referred to as backward rapidity, and a transverse momentum range p(T)=0.5-4.0 GeV/c. We compare the relative yields for different deuteron-gold collision centrality classes. We observe a suppression relative to binary collision scaling at forward rapidity, sensitive to low momentum fraction (x) partons in the gold nucleus, and an enhancement at backward rapidity, sensitive to high momentum fraction partons in the gold nucleus.
Published: 2004

168. Saturation of azimuthal anisotropy in Au + Au collisions at (square root)s(NN) = 62-200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, A, Al-Jamel, J, Alexander, R, Amirikas, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, R, Averbeck, T C, Awes, B, Azmoun, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, F, Bauer, A, Bazilevsky, S, Belikov, R, Bennett, Y, Berdnikov, S, Bhagavatula, M T, Bjorndal, J G, Boissevain, H, Borel, S, Borenstein, K, Boyle, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, S, Campbell, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, C R, Cleven, Y, Cobigo, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, D, d'Enterria, T, Dahms, K, Das, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, A, Dion, J L, Drachenberg, O, Drapier, A, Drees, K A, Drees, A K, Dubey, R, du Rietz, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, K, El Chenawi, A, Enokizono, H, En'yo, B, Espagnon, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B, Forestier, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, Y, Fukao, S-Y, Fung, S, Gadrat, S, Garpman, F, Gastineau, M, Germain, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M Grosse, Perdekamp, T, Gunji, W, Guryn, H-A, Gustafsson, T, Hachiya, A Hadj, Henni, J S, Haggerty, M N, Hagiwara, H, Hamagaki, A G, Hansen, H, Harada, E P, Hartouni, K, Haruna, M, Harvey, E, Haslum, K, Hasuko, R, Hayano, N, Hayashi, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, H, Hiejima, J C, Hill, R, Hobbs, M, Holmes, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Horaguchi, H M, Hur, T, Ichihara, V V, Ikonnikov, K, Imai, M, Inaba, D, Isenhower, L, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, J, Jin, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, M, Kaneta, J H, Kang, S S, Kapoor, K, Katou, T, Kawagishi, A V, Kazantsev, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, Y-S, Kim, E, Kinney, W W, Kinnison, A, Kiss, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, B, Komkov, M, Konno, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, G J, Kunde, N, Kurihara, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, Y, Le Bornec, A, Lebedev, S, Leckey, D M, Lee, M K, Lee, S, Lee, M J, Leitch, M A L, Leite, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, M C, McCain, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, T V, Moukhanova, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, Y, Nagata, J L, Nagle, M, Naglis, T, Nakamura, B K, Nandi, M, Nara, J, Newby, M, Nguyen, P, Nilsson, B, Norman, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, H, Okada, K, Okada, O O, Omiwade, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, A, Parmar, S F, Pate, H, Pei, T, Peitzmann, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, H, Qu, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, V L, Rykov, S S, Ryu, M E, Sadler, B, Sahlmueller, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, D, Sharma, M R, Shaw, T K, Shea, I, Shein, T-A, Shibata, K, Shigaki, T, Shiina, M, Shimomura, T, Shohjoh, K, Shoji, A, Sickles, C L, Silva, D, Silvermyr, K S, Sim, J, Simon-Gillo, C P, Singh, V, Singh, M, Sivertz, S, Skutnik, W C, Smith, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, C, Suire, J P, Sullivan, J, Sziklai, T, Tabaru, S, Takagi, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, J D, Tepe, T L, Thomas, M, Togawa, J, Tojo, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H, Valle, H W, van Hecke, J, Velkovska, M, Velkovsky, R, Vertesi, V, Veszprémi, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, M, Wagner, X R, Wang, Y, Watanabe, J, Wessels, S N, White, N, Willis, D, Winter, F K, Wohn, C L, Woody, M, Wysocki, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudkte, C, Zhang, S, Zhou, S J, Zhou, J, Zimányi, and L, Zolin
Abstract: New measurements are presented for charged hadron azimuthal correlations at midrapidity in Au+Au collisions at (square root)s(NN) = 62.4 and 200 GeV. They are compared to earlier measurements obtained at (square root)s(NN) = 130 GeV and in Pb + Pb collisions at (square root)s(NN) = 17.2 GeV. Sizeable anisotropies are observed with centrality and transverse momentum (pT) dependence characteristic of elliptic flow (upsilon2). For a broad range of centralities, the observed magnitudes and trends of the differential anisotropy, upsilon2(pT), change very little over the collision energy range (square root)s(NN) = 62-200 GeV, indicating saturation of the excitation function for upsilon2 at these energies. Such a saturation may be indicative of the dominance of a very soft equation of state for (square root)s(NN) approximately 60-200 GeV.
Published: 2004

169. 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

170. Bose-Einstein Correlations of Charged Pion Pairs inAu+AuCollisions atsNN=200 GeV

Author: M. Velkovsky, G. S. Kyle, James Alexander, A. A. Vinogradov, J. S. Chai, Henrik Tydesjö, Y. Jeong, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, S. Batsouli, P. L. McGaughey, Jiangyong Jia, Y. Goto, T. Peitzmann, J. M. Burward-Hoy, Sean A. Kelly, Philippe Rosnet, S. Kametani, Saskia Mioduszewski, Alexandre Lebedev, J. H. Kang, J. S. Haggerty, A. Romana, A. P.T. Palounek, D. M. Lee, Senta Greene, M. Nara, C. P. Singh, Yves Roland Schutz, E. O'Brien, V. S. Pantuev, J. M. Heuser, D. Pal, S. Bathe, Jan Rak, M. Harvey, S. F. Pate, W. Guryn, E. M. Takagui, B. A. Cole, Y. I. Makdisi, Kensuke Homma, E. Melnikov, R. Granier de Cassagnac, Junji Tojo, S. Chernichenko, R. A. Soltz, Y. Watanabe, M. Grosse Perdekamp, H. Lim, David Olle Rickard Silvermyr, K. Ozawa, R. S. Towell, X. R. Wang, K. Okada, B. Bassalleck, F. Mühlbacher, L. Ewell, Y. Tanaka, T. K. Shea, Minghui Liu, M. J. Tannenbaum, David D'Enterria, T. L. Thomas, H. En'yo, P. Constantin, L. Aphecetche, Shih-Chang Lee, Jen-Chieh Peng, A. Soldatov, V. V. Ikonnikov, V.A. Onuchin, R. P. Pisani, S. Belikov, K. S. Joo, Kenneth Francis Read, M. J. Leitch, Nikolay Tyurin, Do-Won Kim, K. S. Sim, B. D. Fox, P. J. Kroon, V. Papavassiliou, Dong-Hun Kim, T. Ichihara, C. L. Silva, F. K. Wohn, D. Bucher, J. G. Boissevain, Ryugo S. Hayano, J. Chiba, T. Kohama, D. E. Fields, T. K. Ghosh, Matthew G. Reuter, B. V. Jacak, Dong Jo Kim, H. W. Van Hecke, S. Esumi, L. Kochenda, H. Tsuruoka, Y. Riabov, S. P. Stoll, I. Ravinovich, K. Katou, M. Sakai, Masayasu Ishihara, Osamu Jinnouchi, Susumu Sato, Kenta Shigaki, A. Kiyomichi, G. C. Mishra, C. Pinkenburg, M. Muniruzzaman, F. Staley, T. E. Miller, A. K. Purwar, Y. J. Kwon, A. S. Nyanin, W. A. Zajc, O. Dietzsch, K. Imai, G. Bunce, Takao Sakaguchi, M. Issah, E. Vznuzdaev, V. Baublis, C. Klein-Boesing, Alexander Milov, N. Grau, M. Stepanov, G. Roche, B. Khachaturov, I. D. Ojha, Alexander Malakhov, H. J. Kim, A. Denisov, K. Tanida, F. Plasil, L. Sanfratello, S. Borenstein, V. I. Kochetkov, V. Cianciolo, O. Drapier, Dipanwita Dutta, A. D. Frawley, J. T. Mitchell, T. Shiina, S. Sawada, J. D. Tepe, A. Franz, T. Matsumoto, P. Chand, S. H. Aronson, C. Y. Chi, J. Gosset, D. P. Morrison, J. P. Sullivan, L. Zolin, R. Santo, A. Enokizono, Vladislav Manko, D. Jouan, N. N. Ajitanand, L. Villatte, J. B. Choi, Julia Velkovska, K. El Chenawi, M. R. Shaw, Jason Newby, P. W. Stankus, M. D. Marx, V. E. Semenov, Wei Xie, S. S. Kapoor, W. Holzmann, A. Deshpande, Sergey Fokin, G. R. Young, S. C. Johnson, I. Tserruya, Yu. Efremenko, Charles Maguire, S. Leckey, S. S. Ryu, T. Chujo, A. Hoover, Y. J. Mao, V. Singh, X. Camard, R. du Rietz, Josh Moss, Takahiro Nakamura, N. Kamihara, J. Murata, M. J. Kweon, E. P. Hartouni, H. Kobayashi, G. B. Kim, D. Koehler, Agneta Oskarsson, F. Matathias, A. Parmar, M. Tamai, E. Kistenev, S. Yokkaichi, P. D. Barnes, A. Yanovich, Alberto Baldisseri, M. E. Sadler, S. Garpman, A. G. Hansen, Shingo Sakai, Y. Berdnikov, Christine Angela Aidala, Y. Akiba, S. Zhou, A. Durum, Hirohiko Sato, S. K. Tuli, Joakim Nystrand, E. J. Desmond, Kazuhiro Tanaka, A. Drees, T. C. Awes, Jun Kikuchi, C. L. Woody, Klaus Johannes Reygers, H. A. Gustafsson, M. Hibino, S. N. White, E. Kim, J. Park, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, Y. Yang, R. E. Mischke, C. Zhang, S. Afanasiev, Atsushi Taketani, A. Ster, D. S. Brown, A. Litvinenko, Norio Saito, M. A. Volkov, I. V. Sourikova, H. Torii, A. Isupov, Martin Purschke, R. Amirikas, R. Azmoun, W. E. Sondheim, B. M. Johnson, C. A. Ogilvie, I. E. Yushmanov, S. Y. Fung, Viktor Riabov, K. Kiyoyama, D. Kotchetkov, B. K. Nandi, T. K. Hemmick, Alexei Khanzadeev, S. Bhagavatula, F. Messer, Yasuo Miake, D. Mukhopadhyay, N. Bruner, E. Stenlund, Y. Cobigo, Z. Fraenkel, M. Heffner, J. E. Frantz, Y. Kuroki, W. Y. Jang, John Hill, K. Oyama, R. K. Choudhury, S. Nagamiya, Hideki Hamagaki, G. David, Herve Borel, C. H. Kuberg, Toru Sugitate, A. Glenn, G. Gogiberidze, German Martinez, François Fleuret, V. Babintsev, H. Delagrange, Yanwen Liu, M. Kopytine, V. Ladygin, M. Gonin, K. Kurita, M. Sivertz, Hiroaki Ohnishi, J. Milan, V. Bumazhnov, D. Isenhower, P. Tarján, H. Buesching, A. Kozlov, W. C. Chang, R. Seto, Xingguo Li, Roy A. Lacey, S. P. Sorensen, Peter M. Nilsson, S. Butsyk, J. G. Lajoie, T. Hachiya, Vladimir Samsonov, I. Otterlund, I. J. Choi, K. N. Barish, J. L. Nagle, M. Ono, M. L. Brooks, X. He, V. Peresedov, H. Masui, M. Rosati, and S. S. Adler
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, General Physics and Astronomy, Radius, Function (mathematics), Bose–Einstein correlations, 16. Peace & justice, 01 natural sciences, Nuclear physics, symbols.namesake, Pion, Bose–Einstein statistics, 0103 physical sciences, Coulomb, symbols, Nuclear Experiment, 010306 general physics, Constant (mathematics), Parametrization
Abstract: Bose-Einstein correlations of identically charged pion pairs were measured by the PHENIX experiment at midrapidity in Au+Au collisions at roots(NN)=200 GeV. The Bertsch-Pratt radius parameters were determined as a function of the transverse momentum of the pair and as a function of the centrality of the collision. Using the standard core-halo partial Coulomb fits, and a new parametrization which constrains the Coulomb fraction as determined from the unlike-sign pion correlation, the ratio R-out/R-side is within 0.8-1.1 for 0.25 similar to0.45 GeV/c is approximately constant at unity as a function of centrality.
Published: 2004

171. Centrality dependence of charm production from a measurement of single electrons in Au+Au collisions at sqrt[s(NN)]=200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D G, d'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, O, Drapier, A, Drees, R, du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, N, Hayashi, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V S, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, van Hecke, J, Velkovska, M, Velkovsky, V, Veszprémi, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, S J, Zhou, and L, Zolin
Abstract: The PHENIX experiment has measured midrapidity transverse momentum spectra (0.4p(T)4.0 GeV/c) of single electrons as a function of centrality in Au+Au collisions at sqrt[s(NN)]=200 GeV. Contributions from photon conversions and Dalitz decays of light neutral mesons are measured by introducing a thin (1.7% X0) converter into the PHENIX acceptance and are statistically removed. The subtracted nonphotonic electron spectra are primarily due to the semileptonic decays of hadrons containing heavy quarks, mainly charm at lower p(T). For all centralities, the charm production cross section is found to scale with the nuclear overlap function, T(AA). For minimum-bias collisions the charm cross section per binary collision is N(cc )/T(AA)=622+/-57(stat)+/-160(syst) microb.
Published: 2004

172. Measurement of Nonrandom Event-by-Event Fluctuations of Average Transverse Momentum insNN=200 GeVAu+Auandp+pCollisions

Author: Steven Kelly, Y. I. Makdisi, I. Ravinovich, B. D. Fox, T. Peitzmann, Saskia Mioduszewski, S. Bathe, F. Plasil, Jason Newby, J. Murata, M. J. Tannenbaum, H. Tsuruoka, H. W. Van Hecke, S. S. Ryu, J. E. Frantz, Norio Saito, Herve Borel, Kensuke Homma, R. A. Soltz, Yehan Liu, S. Afanasiev, A. Glenn, M. Issah, A. Taketani, E. Melnikov, A. Ster, N. Kamihara, V. V. Ikonnikov, Yves Roland Schutz, Martin Purschke, S. Zhou, Shih-Chang Lee, F. Matathias, S. Chernichenko, H. Lim, Masamichi Ishihara, T. E. Miller, E. Vznuzdaev, K. S. Sim, Y. J. Kwon, D. Bucher, B. Bassalleck, F. Mühlbacher, M. Grosse Perdekamp, R. Santo, A. Enokizono, L. Ewell, Alexander Milov, Minghui Liu, D. Pal, J. Chiba, V. Bumazhnov, T. Shiina, A. Drees, J. B. Choi, M. Sakai, E. J. Desmond, D. Kotchetkov, S. Bhagavatula, L. Sanfratello, S. Kametani, S. Borenstein, M. Heffner, R. Azmoun, E. M. Takagui, F. Messer, R. S. Towell, V. Babintsev, M. Hibino, Kenneth Francis Read, G. C. Mishra, D. Mukhopadhyay, J. Park, Takao Sakaguchi, Y. Cobigo, Wei Xie, M. A. Volkov, T. Ichihara, Z. Fraenkel, O. Drapier, J. T. Mitchell, David Olle Rickard Silvermyr, C. Klein-Boesing, J. H. Kang, A. Deshpande, A. D. Frawley, C. A. Ogilvie, K. Imai, E. P. Hartouni, Vladislav Manko, J. S. Haggerty, T. K. Hemmick, R. K. Choudhury, V.A. Onuchin, A. Romana, S. Sawada, J. D. Tepe, G. Gogiberidze, D. P. Morrison, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, S. Belikov, K. S. Joo, Yasuo Miake, M. D. Marx, R. Amirikas, W. C. Chang, P. Chand, A. Franz, K. Kiyoyama, N. Grau, S. H. Aronson, S. S. Kapoor, V. S. Pantuev, I. E. Yushmanov, L. Kochenda, T. Chujo, C. Y. Chi, V. E. Semenov, Eun-Hee Kim, X. Camard, P. Tarján, Y. Kuroki, B. K. Nandi, C. L. Woody, W. Holzmann, Margaret Harvey, Alexei Khanzadeev, H. J. Kim, W. Y. Jang, B. Khachaturov, A. Parmar, N. Bruner, E. Stenlund, S. Butsyk, Christine Angela Aidala, H. Kobayashi, T. Matsumoto, D. Isenhower, Junji Tojo, A. G. Litvinenko, L. Aphecetche, Vladimir Samsonov, I. Otterlund, German Martinez, Y. Yang, Agneta Oskarsson, S. P. Sorensen, S. F. Pate, P. W. Stankus, Jen-Chieh Peng, C. P. Singh, D. W. Kim, G. R. Young, B. M. Johnson, Y. Berdnikov, Y. Akiba, K. Okada, S. S. Adler, Joakim Nystrand, X. R. Wang, G. S. Kyle, James Alexander, A. Isupov, S. P. Stoll, S. Nagamiya, Kazuhiro Tanaka, H. En'yo, T. C. Awes, P. Constantin, M. J. Leitch, Klaus Johannes Reygers, Y. Watanabe, O. Dietzsch, Y. Jeong, R. Averbeck, Byung-Sik Hong, Kyoichiro Ozawa, L. Villatte, Jun Kikuchi, J. L. Nagle, G. Bunce, Dong Jo Kim, A. Bazilevsky, Peter M. Nilsson, Philippe Rosnet, Brian Cole, H. Delagrange, T. Kohama, D. Jouan, J. S. Chai, David D'Enterria, Jan Rak, W. Guryn, Alexandre Lebedev, A. Kozlov, D. M. Lee, V. Papavassiliou, Dipanwita Dutta, R. Lacey, P. L. McGaughey, Senta Greene, R. P. Pisani, R. Granier de Cassagnac, M. Nara, I. Tserruya, R. Seto, A. Soldatov, Yu. Efremenko, M. Kopytine, J. M. Burward-Hoy, Nikolay Tyurin, V. Singh, G. B. Kim, D. Koehler, C. L. Silva, J. G. Lajoie, Hideki Hamagaki, G. David, C. H. Kuberg, T. Hachiya, Julia Velkovska, Hirohiko Sato, S. K. Tuli, V. P. Ladygin, S. Garpman, Susumu Sato, M. Muniruzzaman, H. A. Gustafsson, E. O'Brien, P. J. Kroon, K. Tanida, V. I. Kochetkov, R. E. Mischke, C. Zhang, M. Rosati, Dong-Hun Kim, M. Velkovsky, Y. Tanaka, T. K. Shea, I. J. Choi, Alberto Baldisseri, K. N. Barish, Viktor Riabov, I. V. Sourikova, H. Torii, M. Ono, F. Staley, Charles Maguire, S. Leckey, A. A. Vinogradov, Henrik Tydesjö, M. L. Brooks, R. du Rietz, Josh Moss, M. Tamai, X. He, E. Kistenev, V. Peresedov, Jiangyong Jia, Y. Goto, J. G. Boissevain, H. Masui, W. A. Zajc, K. Katou, V. Baublis, A. Denisov, V. Cianciolo, A. Kiyomichi, C. Pinkenburg, A. G. Hansen, Shingo Sakai, T. L. Thomas, Sergey Fokin, M. Stepanov, G. Roche, Ryugo S. Hayano, J. Gosset, Y. Riabov, J. P. Sullivan, Kenta Shigaki, A. S. Nyanin, A. Hoover, S. Yokkaichi, J. M. Heuser, S. Batsouli, A. P.T. Palounek, M. Gonin, K. Kurita, M. Sivertz, Hiroaki Ohnishi, J. Milan, H. Buesching, Xingguo Li, D. E. Fields, B. V. Jacak, A. K. Purwar, N. N. Ajitanand, Takahiro Nakamura, M. E. Sadler, A. Durum, D. S. Brown, S. Y. Fung, John Hill, K. Oyama, Toru Sugitate, François Fleuret, S. N. White, W. E. Sondheim, Osamu Jinnouchi, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, I. D. Ojha, Alexander Malakhov, L. S. Zolin, S. Esumi, P. D. Barnes, A. Yanovich, K. El Chenawi, M. R. Shaw, S. C. Johnson, Y. J. Mao, and M. J. Kweon
Subjects: Physics, Momentum (technical analysis), Range (particle radiation), 010308 nuclear & particles physics, General Physics and Astronomy, Collision, 01 natural sciences, Nuclear physics, Particle emission, 0103 physical sciences, Transverse momentum, Particle, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Event (particle physics)
Abstract: Event-by-event fluctuations of the average transverse momentum of produced particles near midrapidity have been measured by the PHENIX Collaboration in square root of (sNN)=200 GeV Au+Au, and p+p collisions at the Relativistic Heavy Ion Collider. The fluctuations are observed to be in excess of the expectation for statistically independent particle emission for all centralities. The excess fluctuations exhibit a dependence on both the centrality of the collision and on the pT range over which the average is calculated. Both the centrality and pT dependence can be well reproduced by a simulation of random particle production with the addition of contributions from hard-scattering processes.
Published: 2004

173. Deuteron and antideuteron production in Au+Au collisions at square root of s(NN)=200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D, d'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, O, Drapier, A, Drees, R, du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, N, Hayashi, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, van Hecke, J, Velkovska, M, Velkovsky, V, Veszprémi, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, S J, Zhou, and L, Zolin
Abstract: The production of deuterons and antideuterons in the transverse momentum range 1.1p(T)4.3 GeV/c at midrapidity in Au+Au collisions at square root of s(NN)=200 GeV has been studied by the PHENIX experiment at RHIC. A coalescence analysis, comparing the deuteron and antideuteron spectra with that of proton and antiproton, has been performed. The coalescence probability is equal for both deuterons and antideuterons and it increases as a function of p(T), which is consistent with an expanding collision zone. Comparing (anti)proton yields, p /p=0.73+/-0.01, with (anti)deuteron yields, d /d=0.47+/-0.03, we estimate that n /n=0.64+/-0.04. The nucleon phase space density is estimated from the coalescence measurement.
Published: 2004

174. Double helicity asymmetry in inclusive midrapidity pi0 production for polarized p+p collisions at square root s = 200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, A, Al-Jamel, J, Alexander, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, R, Averbeck, T C, Awes, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, F, Bauer, A, Bazilevsky, S, Belikov, M T, Bjorndal, J G, Boissevain, H, Borel, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, J P, Cussonneau, D, d'Enterria, K, Das, G, David, F, Deák, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, J L, Drachenberg, O, Drapier, A, Drees, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, H, En'yo, B, Espagnon, S, Esumi, D E, Fields, C, Finck, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, Y, Fukao, S-Y, Fung, S, Gadrat, M, Germain, A, Glenn, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, K, Hasuko, R, Hayano, X, He, M, Heffner, T K, Hemmick, J M, Heuser, P, Hidas, H, Hiejima, J C, Hill, R, Hobbs, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Horaguchi, T, Ichihara, V V, Ikonnikov, K, Imai, M, Inaba, M, Inuzuka, D, Isenhower, L, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, M, Kaneta, J H, Kang, K, Katou, T, Kawabata, A, Kazantsev, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D J, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kinney, A, Kiss, E, Kistenev, A, Kiyomichi, C, Klein-Boesing, H, Kobayashi, V, Kochetkov, R, Kohara, B, Komkov, M, Konno, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, G J, Kunde, K, Kurita, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, J G, Lajoie, Y, Le Bornec, A, Lebedev, S, Leckey, D M, Lee, M J, Leitch, M A L, Leite, X, Li, X H, Li, H, Lim, A, Litvinenko, M X, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, H, Masui, F, Matathias, T, Matsumoto, M C, McCain, P L, McGaughey, Y, Miake, T E, Miller, A, Milov, S, Mioduszewski, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, D, Mukhopadhyay, M, Muniruzzaman, S, Nagamiya, J L, Nagle, T, Nakamura, J, Newby, A S, Nyanin, J, Nystrand, E, O'brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, H, Okada, K, Okada, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, V, Penev, J-C, Peng, H, Pereira, V, Peresedov, A, Pierson, C, Pinkenburg, R P, Pisani, M L, Purschke, A K, Purwar, J, Qualls, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, S, Rosendahl, P, Rosnet, V L, Rykov, S S, Ryu, N, Saito, T, Sakaguchi, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, T K, Shea, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, A, Sickles, C L, Silva, D, Silvermyr, K S, Sim, A, Soldatov, R A, Soltz, W E, Sondheim, S, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, S, Takagi, E M, Takagui, A, Taketani, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, T L, Thomas, M, Togawa, J, Tojo, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, H, Tydesjö, N, Tyurin, T J, Uam, H W, van Hecke, J, Velkovska, M, Velkovsky, V, Veszprémi, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, N, Willis, F K, Wohn, C L, Woody, W, Xie, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, J, Zimányi, L, Zolin, and X, Zong
Abstract: We present a measurement of the double longitudinal spin asymmetry in inclusive pi(0) production in polarized proton-proton collisions at sqrt[s]=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

175. Identified charged particle spectra and yields inAu+Aucollisions atsNN=200GeV

Author: S. C. Johnson, Y. J. Mao, M. J. Kweon, R. Azmoun, E. Kim, D. Mukhopadhyay, S. N. White, N. N. Ajitanand, Y. Yang, Y. Cobigo, S. Butsyk, Vladimir Samsonov, Takahiro Nakamura, Atsushi Taketani, B. M. Johnson, T. C. Awes, M. Rosati, I. Otterlund, M. Velkovsky, A. A. Vinogradov, Henrik Tydesjö, W. E. Sondheim, Jiangyong Jia, Y. Goto, M. E. Sadler, S. F. Pate, J. E. Frantz, R. A. Soltz, H. Tsuruoka, Jun Kikuchi, A. Durum, S. Y. Fung, S. Garpman, A. G. Hansen, Shingo Sakai, R. S. Towell, B. Khachaturov, T. Matsumoto, Herve Borel, A. Glenn, T. L. Thomas, Hideki Hamagaki, K. Tanida, G. David, C. H. Kuberg, M. Grosse Perdekamp, D. Isenhower, D. S. Brown, J. L. Nagle, O. Dietzsch, X. R. Wang, A. Kozlov, Charles Maguire, V. Ladygin, M. Gonin, H. A. Gustafsson, Dipanwita Dutta, R. Seto, V.A. Onuchin, John Hill, K. Oyama, Y. J. Kwon, L. Sanfratello, Julia Velkovska, S. Belikov, K. S. Joo, S. Leckey, Ryugo S. Hayano, J. S. Chai, Y. Liu, B. D. Fox, Y. Riabov, Toru Sugitate, R. E. Mischke, Kenta Shigaki, C. Zhang, S. Borenstein, C. Y. Chi, D. E. Fields, P. L. McGaughey, V. Papavassiliou, N. Grau, B. V. Jacak, K. N. Barish, Joakim Nystrand, R. du Rietz, Josh Moss, J. M. Burward-Hoy, David Olle Rickard Silvermyr, M. Tamai, M. Ono, A. S. Nyanin, L. Zolin, I. Ravinovich, V. S. Pantuev, F. Plasil, K. Kurita, Shih-Chang Lee, K. El Chenawi, M. R. Shaw, A. K. Purwar, P. W. Stankus, Viktor Riabov, Alberto Baldisseri, François Fleuret, Sean A. Kelly, E. Kistenev, M. Harvey, M. L. Brooks, Junji Tojo, K. S. Sim, Martin Purschke, T. Peitzmann, S. Afanasiev, A. Ster, M. Sivertz, S. S. Ryu, X. He, C. L. Woody, S. Batsouli, S. Sawada, J. D. Tepe, V. Peresedov, K. Okada, H. En'yo, P. Constantin, M. J. Leitch, Saskia Mioduszewski, D. Kotchetkov, S. Bhagavatula, A. Franz, T. Ichihara, L. Kochenda, S. S. Kapoor, Minghui Liu, Y. Watanabe, F. K. Wohn, T. K. Ghosh, S. Zhou, Z. Fraenkel, H. Masui, Matthew G. Reuter, R. K. Choudhury, J. B. Choi, F. Messer, H. J. Kim, Yves Roland Schutz, M. Issah, Senta Greene, M. Nara, C. P. Singh, Do-Won Kim, P. J. Kroon, Dong-Hun Kim, I. D. Ojha, Alexander Malakhov, A. Soldatov, I. V. Sourikova, Kenneth Francis Read, A. P.T. Palounek, M. Heffner, H. Torii, L. Villatte, E. O'Brien, C. L. Silva, E. Vznuzdaev, J. M. Heuser, D. Pal, G. Gogiberidze, E. P. Hartouni, E. M. Takagui, B. A. Cole, V. Baublis, Y. Tanaka, P. D. Barnes, A. Yanovich, T. K. Shea, T. Kohama, Masayasu Ishihara, S. P. Sorensen, Susumu Sato, S. Esumi, M. Muniruzzaman, Peter M. Nilsson, F. Staley, W. A. Zajc, K. Imai, T. Shiina, A. Denisov, V. Cianciolo, Sergey Fokin, J. G. Lajoie, T. Hachiya, A. Hoover, I. J. Choi, Hiroaki Ohnishi, J. Milan, Wei Xie, A. Deshpande, H. Buesching, Xingguo Li, L. Aphecetche, Jan Rak, W. Guryn, R. Granier de Cassagnac, K. Ozawa, Y. I. Makdisi, M. J. Tannenbaum, V. V. Ikonnikov, D. Bucher, J. Chiba, M. Sakai, G. C. Mishra, Takao Sakaguchi, C. Klein-Boesing, A. D. Frawley, S. H. Aronson, W. Holzmann, I. Tserruya, Yu. Efremenko, V. Singh, G. B. Kim, D. Koehler, Hirohiko Sato, S. K. Tuli, Jason Newby, J. Murata, Alexander Milov, O. Drapier, Alexei Khanzadeev, D. P. Morrison, N. Bruner, E. Stenlund, V. E. Semenov, Jen-Chieh Peng, G. R. Young, S. Nagamiya, Dong Jo Kim, Osamu Jinnouchi, E. J. Desmond, M. Hibino, J. Park, S. Bathe, R. Amirikas, I. E. Yushmanov, Kensuke Homma, E. Melnikov, S. Chernichenko, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, J. T. Mitchell, Vladislav Manko, M. D. Marx, T. Chujo, X. Camard, A. Parmar, H. W. Vanhecke, Christine Angela Aidala, H. Delagrange, N. Kamihara, F. Matathias, M. Kopytine, A. Drees, S. Kametani, S. P. Stoll, G. Bunce, J. H. Kang, D. Jouan, S. S. Adler, J. S. Haggerty, G. S. Kyle, A. Litvinenko, M. A. Volkov, M. Chiu, Ajit Kumar Mohanty, A. Isupov, James Alexander, T. A. Shibata, K. Kiyoyama, C. A. Ogilvie, Y. Jeong, R. Averbeck, Byung-Sik Hong, A. Romana, A. Bazilevsky, T. K. Hemmick, Philippe Rosnet, Yasuo Miake, Alexandre Lebedev, D. M. Lee, Y. Kuroki, W. Y. Jang, B. K. Nandi, J. Gosset, J. P. Sullivan, S. Yokkaichi, J. G. Boissevain, K. Katou, A. Kiyomichi, C. Pinkenburg, M. Stepanov, G. Roche, German Martinez, Norio Saito, H. Kobayashi, Agneta Oskarsson, V. Babintsev, Y. Berdnikov, Y. Akiba, T. E. Miller, Kazuhiro Tanaka, Klaus Johannes Reygers, R. Santo, A. Enokizono, V. Kochetkov, P. Chand, David D'Enterria, R. P. Pisani, Nikolay Tyurin, V. Bumazhnov, P. Tarján, W. C. Chang, and Roy A. Lacey
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Proton, 010308 nuclear & particles physics, Hadron, 01 natural sciences, Charged particle, Pion, Antiproton, 0103 physical sciences, Production (computer science), Rapidity, Atomic physics, Nuclear Experiment, 010306 general physics, Centrality
Abstract: The centrality dependence of transverse momentum distributions and yields for ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}},{K}^{\ifmmode\pm\else\textpm\fi{}},p$, and $\overline{p}$ in $\text{Au}+\text{Au}$ collisions at $\sqrt{{s}_{NN}}=200\phantom{\rule{0.3em}{0ex}}\text{GeV}$ at midrapidity are measured by the PHENIX experiment at the Relativistic Heavy Ion Collider. We observe a clear particle mass dependence of the shapes of transverse momentum spectra in central collisions below $\ensuremath{\sim}2\phantom{\rule{0.3em}{0ex}}\text{GeV}∕c$ in ${p}_{T}$. Both mean transverse momenta and particle yields per participant pair increase from peripheral to midcentral and saturate at the most central collisions for all particle species. We also measure particle ratios of ${\ensuremath{\pi}}^{\ensuremath{-}}∕{\ensuremath{\pi}}^{+}$, ${K}^{\ensuremath{-}}∕{K}^{+}$, $\overline{p}∕p$, $K∕\ensuremath{\pi}$, $p∕\ensuremath{\pi}$, and $\overline{p}∕\ensuremath{\pi}$ as a function of ${p}_{T}$ and collision centrality. The ratios of equal mass particle yields are independent of ${p}_{T}$ and centrality within the experimental uncertainties. In central collisions at intermediate transverse momenta $\ensuremath{\sim}1.5--4.5\phantom{\rule{0.3em}{0ex}}\text{GeV}∕c$, proton and antiproton yields constitute a significant fraction of the charged hadron production and show a scaling behavior different from that of pions.
Published: 2004

176. J/ψProduction from Proton-Proton Collisions ats=200 GeV

Author: S. Afanasiev, A. Ster, Charles Maguire, S. Leckey, R. du Rietz, Josh Moss, O. Dietzsch, S. Y. Fung, N. N. Ajitanand, Y. Yang, Jen-Chieh Peng, M. Tamai, F. Messer, B. M. Johnson, E. Kistenev, M. Heffner, Dipanwita Dutta, V. Ladygin, M. Gonin, Takahiro Nakamura, V.A. Onuchin, John Hill, K. Oyama, V. S. Pantuev, G. Gogiberidze, K. Kurita, S. Butsyk, Vladimir Samsonov, I. Otterlund, M. E. Sadler, S. Belikov, K. S. Joo, Yi Liu, J. L. Nagle, Toru Sugitate, Dong Jo Kim, Osamu Jinnouchi, Julia Velkovska, M. Harvey, S. F. Pate, D. Isenhower, M. Sivertz, A. Durum, A. Kozlov, Y. Tanaka, T. L. Thomas, Junji Tojo, Brian Cole, T. K. Shea, R. Seto, Y. I. Makdisi, L. Aphecetche, D. S. Brown, S. Esumi, B. Khachaturov, K. Okada, François Fleuret, T. Matsumoto, X. R. Wang, M. Rosati, B. D. Fox, T. Peitzmann, H. Kobayashi, S. P. Sorensen, Alexander Milov, H. En'yo, M. Velkovsky, P. Constantin, Joakim Nystrand, T. C. Awes, Ryugo S. Hayano, Saskia Mioduszewski, M. J. Leitch, X. He, Agneta Oskarsson, Jun Kikuchi, K. A. Drees, O. Drapier, K. El Chenawi, M. R. Shaw, Peter M. Nilsson, D. E. Fields, Y. Riabov, L. Kochenda, T. Ichihara, Kenta Shigaki, A. A. Vinogradov, Henrik Tydesjö, F. K. Wohn, W. A. Zajc, M. J. Tannenbaum, Y. Berdnikov, Yves Roland Schutz, Y. Akiba, J. S. Chai, T. K. Ghosh, Matthew G. Reuter, S. Kametani, D. P. Morrison, H. Tsuruoka, S. Nagamiya, V. Papavassiliou, V. V. Ikonnikov, B. V. Jacak, V. E. Semenov, Shih-Chang Lee, Kazuhiro Tanaka, J. T. Mitchell, K. S. Sim, V. Peresedov, Y. Watanabe, I. D. Ojha, A. S. Nyanin, J. M. Heuser, D. Pal, Alexander Malakhov, Klaus Johannes Reygers, P. L. McGaughey, I. Tserruya, A. Denisov, V. Cianciolo, Wei Xie, Jiangyong Jia, A. K. Purwar, Y. Goto, Yu. Efremenko, V. Singh, J. B. Choi, Martin Purschke, E. M. Takagui, J. G. Lajoie, T. Hachiya, R. S. Towell, D. Bucher, H. J. Kim, J. M. Burward-Hoy, G. B. Kim, D. Koehler, A. Deshpande, Y. J. Kwon, L. Villatte, H. Masui, P. D. Barnes, E. P. Hartouni, Gerry Bunce, Sergey Fokin, J. Chiba, L. Sanfratello, M. Sakai, A. Litvinenko, M. A. Volkov, A. Soldatov, I. J. Choi, S. S. Adler, Vladislav Manko, A. Yanovich, G. S. Kyle, James Alexander, A. Isupov, K. Tanida, Hirohiko Sato, S. K. Tuli, D. Kotchetkov, S. Borenstein, G. C. Mishra, Minghui Liu, S. N. White, C. Y. Chi, Y. Jeong, R. Averbeck, Byung-Sik Hong, K. Imai, A. Bazilevsky, M. D. Marx, A. Hoover, S. Bhagavatula, J. H. Kang, Kenneth Francis Read, M. Issah, J. S. Haggerty, Takao Sakaguchi, Hiroaki Ohnishi, J. Milan, Philippe Rosnet, K. N. Barish, C. Klein-Boesing, H. W. Van Hecke, Jason Newby, Alexandre Lebedev, E. Vznuzdaev, M. Ono, J. Murata, V. Baublis, W. E. Sondheim, C. A. Ogilvie, Jan Rak, D. M. Lee, A. G. Hansen, A. Romana, A. D. Frawley, Shingo Sakai, Z. Fraenkel, T. K. Hemmick, T. Chujo, T. Shiina, V. Kochetkov, W. Guryn, Yasuo Miake, H. Delagrange, R. Granier de Cassagnac, C. L. Woody, S. H. Aronson, Alexei Khanzadeev, M. L. Brooks, X. Camard, N. Bruner, E. Stenlund, Alberto Baldisseri, R. K. Choudhury, S. C. Johnson, Y. J. Mao, M. J. Kweon, S. Sawada, J. D. Tepe, Norio Saito, A. Parmar, W. Holzmann, K. Ozawa, S. Batsouli, A. Franz, Y. Kuroki, S. S. Kapoor, W. Y. Jang, I. V. Sourikova, H. Torii, C. L. Silva, P. Chand, T. Kohama, Christine Angela Aidala, Masayasu Ishihara, Susumu Sato, H. Buesching, N. Kamihara, M. Muniruzzaman, E. J. Desmond, F. Matathias, F. Staley, M. Hibino, V. Babintsev, J. Park, E. Kim, Xingguo Li, A. Drees, Atsushi Taketani, R. Amirikas, I. E. Yushmanov, A. P.T. Palounek, S. Garpman, G. R. Young, M. Kopytine, H. A. Gustafsson, S. P. Stoll, R. E. Mischke, C. Zhang, Viktor Riabov, S. Zhou, S. Bathe, D. Jouan, Kensuke Homma, E. Melnikov, S. Chernichenko, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, J. Gosset, J. P. Sullivan, S. Yokkaichi, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, K. Kiyoyama, J. G. Boissevain, B. K. Nandi, K. Katou, A. Kiyomichi, C. Pinkenburg, M. Stepanov, G. Roche, German Martinez, T. E. Miller, R. Santo, A. Enokizono, Hideki Hamagaki, G. David, V. Bumazhnov, C. H. Kuberg, P. Tarján, W. C. Chang, Roy A. Lacey, David D'Enterria, R. P. Pisani, Nikolay Tyurin, Do-Won Kim, P. J. Kroon, Dong-Hun Kim, Sean A. Kelly, N. Grau, L. Zolin, P. W. Stankus, Senta Greene, M. Nara, C. P. Singh, E. O'Brien, R. A. Soltz, R. Azmoun, M. Grosse Perdekamp, D. Mukhopadhyay, Y. Cobigo, David Olle Rickard Silvermyr, I. Ravinovich, F. Plasil, S. S. Ryu, J. E. Frantz, Herve Borel, and A. Glenn
Subjects: Quantum chromodynamics, Physics, Particle physics, Range (particle radiation), Meson production, Proton, 010308 nuclear & particles physics, General Physics and Astronomy, 7. Clean energy, 01 natural sciences, Nuclear physics, Cross section (physics), 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: J/psi production has been measured in proton-proton collisions at roots=200 GeV over a wide rapidity and transverse momentum range by the PHENIX experiment at the Relativistic Heavy Ion Collider. Distributions of the rapidity and transverse momentum, along with measurements of the mean transverse momentum and total production cross section are presented and compared to available theoretical calculations. The total J/psi cross section is 4.0+/-0.6(stat)+/-0.6(syst)+/-0.4(abs) mub. The mean transverse momentum is 1.80+/-0.23(stat)+/-0.16(syst) GeV/c.
Published: 2004

177. J∕ψproduction inAu-Aucollisions atsNN=200GeV

Author: F. Plasil, V. Peresedov, Jan Rak, W. Guryn, S. S. Ryu, R. Granier de Cassagnac, I. Tserruya, Yu. Efremenko, H. Masui, K. Ozawa, S. C. Johnson, S. Zhou, V. Singh, A. Litvinenko, M. A. Volkov, A. Isupov, Y. J. Mao, M. J. Kweon, S. N. White, V. Ladygin, M. Gonin, K. Tanida, D. Koehler, Sean A. Kelly, S. P. Sorensen, Peter M. Nilsson, C. A. Ogilvie, J. G. Lajoie, T. Hachiya, I. J. Choi, V. I. Kochetkov, S. Afanasiev, K. Kurita, T. K. Hemmick, M. Sivertz, V. Bumazhnov, R. Rietz, Yasuo Miake, David D'Enterria, Hiroaki Ohnishi, H. Tsuruoka, J. Milan, S. F. Pate, T. L. Thomas, J. Gosset, H. Buesching, Hirohiko Sato, S. K. Tuli, Xingguo Li, B. D. Fox, W. E. Sondheim, K. N. Barish, N. Grau, L. Zolin, Y. Kuroki, W. Y. Jang, N. Kamihara, J. P. Sullivan, Y. Yang, P. Chand, F. Matathias, R. P. Pisani, O. Dietzsch, X. R. Wang, A. Ster, S. Y. Fung, Dipanwita Dutta, M. Ono, B. M. Johnson, P. W. Stankus, Alberto Baldisseri, Charles Maguire, S. Leckey, Ryugo S. Hayano, A. Drees, Nikolay Tyurin, Y. J. Kwon, R. Azmoun, H. Kobayashi, S. Yokkaichi, John Hill, K. Oyama, Julia Velkovska, Agneta Oskarsson, D. E. Fields, Senta Greene, M. Nara, C. L. Silva, Toru Sugitate, M. Rosati, L. D. Isenhower, M. Velkovsky, Josh Moss, L. Sanfratello, Y. Berdnikov, S. P. Stoll, Y. Akiba, M. Tamai, D. Mukhopadhyay, Y. Riabov, G. R. Young, S. Nagamiya, J. G. Boissevain, B. V. Jacak, C. P. Singh, T. Kohama, Kazuhiro Tanaka, S. Borenstein, F. Messer, Masayasu Ishihara, François Fleuret, M. L. Brooks, A. A. Vinogradov, E. Kistenev, Henrik Tydesjö, K. Katou, E. O'Brien, Susumu Sato, J. B. Choi, Brian Cole, M. Heffner, Y. Cobigo, V. Papavassiliou, Kenta Shigaki, D. Jouan, T. Ichihara, Jiangyong Jia, A. Kiyomichi, C. Pinkenburg, F. K. Wohn, M. Muniruzzaman, R. A. Soltz, Do-Won Kim, P. J. Kroon, J. E. Frantz, F. Staley, T. K. Ghosh, Matthew G. Reuter, Y. Goto, M. Grosse Perdekamp, Dong-Hun Kim, I. D. Ojha, M. Stepanov, G. Roche, T. Peitzmann, Shih-Chang Lee, Alexander Malakhov, E. P. Hartouni, Gerry Bunce, Saskia Mioduszewski, G. Gogiberidze, S. Kametani, V. S. Pantuev, K. S. Sim, A. K. Purwar, A. S. Nyanin, Herve Borel, J. H. Kang, J. S. Haggerty, A. Romana, M. Harvey, Y. Watanabe, A. Glenn, Junji Tojo, P. D. Barnes, A. Yanovich, David Olle Rickard Silvermyr, B. Khachaturov, A. Kozlov, H. W. Van Hecke, Yves Roland Schutz, K. Okada, R. Seto, T. Matsumoto, S. Sawada, J. D. Tepe, H. En'yo, A. Soldatov, P. Constantin, M. J. Leitch, Y. Tanaka, A. Franz, J. M. Heuser, Hideki Hamagaki, G. David, T. K. Shea, D. Pal, K. Imai, S. S. Kapoor, C. H. Kuberg, E. M. Takagui, R. S. Towell, N. N. Ajitanand, Joakim Nystrand, S. Bathe, Kensuke Homma, E. Melnikov, Takahiro Nakamura, L. Kochenda, S. Chernichenko, H. Lim, M. E. Sadler, C. Y. Chi, B. Bassalleck, F. Mühlbacher, C. L. Woody, L. Ewell, A. Durum, D. S. Brown, J. T. Mitchell, Vladislav Manko, M. D. Marx, T. Chujo, X. Camard, A. Parmar, Christine Angela Aidala, L. Villatte, J. Chiba, M. Sakai, G. C. Mishra, Takao Sakaguchi, C. Klein-Boesing, A. D. Frawley, S. H. Aronson, W. Holzmann, Y. I. Makdisi, I. V. Sourikova, H. Torii, M. J. Tannenbaum, V. V. Ikonnikov, D. Bucher, S. Batsouli, A. G. Hansen, Shingo Sakai, Hyoun-Woo Kim, A. P.T. Palounek, J. S. Chai, P. L. McGaughey, S. Esumi, J. M. Burward-Hoy, W. A. Zajc, Minghui Liu, Kenneth Francis Read, A. Denisov, V. Cianciolo, Wei Xie, A. Deshpande, P. Tarján, W. C. Chang, Sergey Fokin, E. Kim, Atsushi Taketani, Roy A. Lacey, Martin Purschke, A. Hoover, T. C. Awes, S. Butsyk, D. Kotchetkov, S. Bhagavatula, Vladimir Samsonov, I. Otterlund, S. Garpman, Jun Kikuchi, Z. Fraenkel, H. A. Gustafsson, K. Reygers, R. K. Choudhury, V.A. Onuchin, S. Belikov, K. S. Joo, Alexander Milov, R. E. Mischke, J. L. Nagle, C. Zhang, O. Drapier, Jason Newby, D. P. Morrison, V. E. Semenov, M. R. Shaw, J. Murata, Viktor Riabov, Jen-Chieh Peng, Dong Jo Kim, Osamu Jinnouchi, Alexei Khanzadeev, N. Bruner, E. Stenlund, M. Issah, E. Vznuzdaev, V. Baublis, T. Shiina, L. Aphecetche, E. J. Desmond, M. Hibino, S. S. Adler, G. S. Kyle, J. Park, James Alexander, Y. Jeong, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, R. Amirikas, Norio Saito, I. E. Yushmanov, V. Babintsev, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, K. Kiyoyama, B. K. Nandi, K. Chenawi, German Martinez, T. E. Miller, R. Santo, A. Enokizono, G. W. Kim, H. Delagrange, Yanwen Liu, M. Kopytine, X. He, and I. Ravinovich
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 0103 physical sciences, Production (economics), 010306 general physics, 01 natural sciences, Mathematical physics
Published: 2004

178. Bose-Einstein correlations of charged pion pairs in Au + Au collisions at square root sNN = 200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D G, d'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, O, Drapier, A, Drees, R, du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V S, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, van Hecke, J, Velkovska, M, Velkovsky, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, S J, Zhou, and L, Zolin
Abstract: Bose-Einstein correlations of identically charged pion pairs were measured by the PHENIX experiment at midrapidity in Au + Au collisions at square root s(NN)=200 GeV. The Bertsch-Pratt radius parameters were determined as a function of the transverse momentum of the pair and as a function of the centrality of the collision. Using the standard core-halo partial Coulomb fits, and a new parametrization which constrains the Coulomb fraction as determined from the unlike-sign pion correlation, the ratio R(out)/R(side) is within 0.8-1.1 for 0.25k(T)1.2 GeV/c. The centrality dependence of all radii is well described by a linear scaling in N(1/3)(part), and R(out)/R(side) fork(T)approximately 0.45 GeV/c is approximately constant at unity as a function of centrality.
Published: 2004

179. 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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180. Midrapidity Neutral-Pion Production in Proton-Proton Collisions at √s = 200 GeV

Author: N. Kamihara, V. Ladygin, M. Gonin, F. Matathias, A. Drees, H. Tsuruoka, J. Chiba, K. Kurita, M. Sivertz, Y. J. Kwon, C. L. Woody, M. Sakai, L. Sanfratello, G. R. Young, G. C. Mishra, M. Issah, S. Borenstein, T. Ichihara, Martin Purschke, Takao Sakaguchi, V. Kochetkov, C. Klein-Boesing, Charles Maguire, S. Leckey, R. A. Soltz, D. E. Fields, B. V. Jacak, E. Vznuzdaev, V. Baublis, K. N. Barish, F. K. Wohn, J. E. Frantz, R. du Rietz, Josh Moss, D. Isenhower, M. Grosse Perdekamp, D. Kotchetkov, S. Bhagavatula, Herve Borel, M. Tamai, A. Glenn, M. Ono, A. D. Frawley, T. K. Ghosh, Matthew G. Reuter, B. D. Fox, E. Kistenev, I. V. Sourikova, H. Torii, I. D. Ojha, Alexander Malakhov, S. P. Sorensen, A. K. Purwar, T. Shiina, S. H. Aronson, M. L. Brooks, B. Khachaturov, V. S. Pantuev, R. Azmoun, Z. Fraenkel, S. Butsyk, R. K. Choudhury, Peter M. Nilsson, Vladimir Samsonov, David Olle Rickard Silvermyr, K. A. Drees, Y. Yang, J. Gosset, P. Chand, J. S. Chai, C. L. Silva, J. P. Sullivan, W. Holzmann, Y. Tanaka, I. Otterlund, X. He, T. Matsumoto, S. Bathe, Kensuke Homma, V. Peresedov, T. K. Shea, Sean A. Kelly, J. G. Lajoie, M. Harvey, Junji Tojo, Y. Cobigo, I. Ravinovich, T. Hachiya, F. Plasil, S. S. Ryu, P. L. McGaughey, T. Kohama, Do-Won Kim, P. J. Kroon, Joakim Nystrand, Shih-Chang Lee, K. S. Sim, E. J. Desmond, Masayasu Ishihara, E. Melnikov, J. B. Choi, P. D. Barnes, A. Yanovich, S. P. Stoll, S. C. Johnson, N. N. Ajitanand, K. Okada, B. M. Johnson, J. Milan, Y. J. Mao, M. J. Kweon, Susumu Sato, S. Afanasiev, J. L. Nagle, Wei Xie, A. Deshpande, L. Kochenda, I. J. Choi, S. Y. Fung, Dong-Hun Kim, S. S. Adler, G. S. Kyle, Y. I. Makdisi, M. Rosati, J. M. Burward-Hoy, M. Velkovsky, D. Jouan, H. En'yo, P. Constantin, M. J. Leitch, E. P. Hartouni, Gerry Bunce, D. Pal, K. Imai, James Alexander, Y. Jeong, R. Averbeck, Byung-Sik Hong, M. Muniruzzaman, F. Staley, Hiroaki Ohnishi, Senta Greene, M. Nara, M. Hibino, J. Park, Takahiro Nakamura, C. P. Singh, M. E. Sadler, A. Litvinenko, M. A. Volkov, David D'Enterria, A. Isupov, E. O'Brien, A. Ster, R. Amirikas, E. Kim, Atsushi Taketani, H. J. Kim, A. Bazilevsky, Jan Rak, W. Guryn, L. Villatte, A. Durum, S. Chernichenko, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, A. A. Vinogradov, Henrik Tydesjö, I. E. Yushmanov, F. Messer, S. Batsouli, Alexei Khanzadeev, Y. Watanabe, M. J. Tannenbaum, S. Yokkaichi, J. T. Mitchell, S. Kametani, V. Bumazhnov, Minghui Liu, D. S. Brown, T. L. Thomas, R. P. Pisani, R. S. Towell, Philippe Rosnet, C. A. Ogilvie, T. K. Hemmick, Yasuo Miake, Ryugo S. Hayano, M. Heffner, N. Bruner, E. Stenlund, Vladislav Manko, V.A. Onuchin, S. Belikov, K. S. Joo, Jiangyong Jia, Y. Goto, John Hill, K. Oyama, Toru Sugitate, R. Granier de Cassagnac, L. Aphecetche, Alexandre Lebedev, K. Ozawa, Kenneth Francis Read, M. D. Marx, François Fleuret, H. W. Van Hecke, V. V. Ikonnikov, S. Nagamiya, Y. Riabov, Kenta Shigaki, D. M. Lee, Y. Kuroki, Nikolay Tyurin, W. Y. Jang, G. Gogiberidze, A. Soldatov, J. H. Kang, J. S. Haggerty, A. Romana, H. Buesching, K. Tanida, D. Bucher, S. N. White, A. S. Nyanin, H. Kobayashi, P. Tarján, C. Y. Chi, T. Chujo, Hideki Hamagaki, X. Camard, A. Kozlov, Agneta Oskarsson, O. Dietzsch, W. C. Chang, Xingguo Li, Y. Berdnikov, W. E. Sondheim, Y. Akiba, Dipanwita Dutta, T. C. Awes, G. David, Jason Newby, Roy A. Lacey, J. Murata, Kazuhiro Tanaka, A. Parmar, R. Seto, Julia Velkovska, A. G. Hansen, Shingo Sakai, C. H. Kuberg, Jun Kikuchi, Klaus Johannes Reygers, T. Peitzmann, Saskia Mioduszewski, Christine Angela Aidala, A. P.T. Palounek, J. G. Boissevain, K. El Chenawi, M. R. Shaw, Alberto Baldisseri, Yves Roland Schutz, K. Katou, Norio Saito, A. Kiyomichi, J. M. Heuser, C. Pinkenburg, V. Babintsev, E. M. Takagui, B. A. Cole, M. Stepanov, G. Roche, N. Grau, S. Esumi, W. A. Zajc, L. Zolin, A. Denisov, V. Cianciolo, P. W. Stankus, Sergey Fokin, A. Hoover, S. Garpman, H. A. Gustafsson, H. Masui, R. E. Mischke, C. Zhang, Viktor Riabov, I. Tserruya, Yu. Efremenko, V. Singh, G. B. Kim, D. Koehler, Hirohiko Sato, S. K. Tuli, S. Sawada, J. D. Tepe, A. Franz, S. S. Kapoor, Alexander Milov, O. Drapier, S. F. Pate, D. P. Morrison, X. R. Wang, V. E. Semenov, D. Mukhopadhyay, Jen-Chieh Peng, V. Papavassiliou, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, K. Kiyoyama, B. K. Nandi, Dong Jo Kim, Osamu Jinnouchi, German Martinez, T. E. Miller, R. Santo, A. Enokizono, H. Delagrange, Yanwen Liu, M. Kopytine, and S. Zhou
Subjects: Physics, Scattering cross-section, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Lattice, Nuclear Theory, General Physics and Astronomy, Perturbative QCD, 01 natural sciences, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Nuclear Experiment
Abstract: The invariant differential cross section for inclusive neutral-pion production in p+p collisions at roots=200 GeV has been measured at midrapidity (eta
Published: 2003

181. Elliptic Flow of Identified Hadrons inAu+AuCollisions atsNN=200 GeV

Author: V. Singh, G. B. Kim, D. Koehler, M. Sakai, G. C. Mishra, Hirohiko Sato, S. K. Tuli, Takao Sakaguchi, C. Klein-Boesing, S. Butsyk, Vladimir Samsonov, Shih-Chang Lee, K. S. Sim, T. Peitzmann, I. Otterlund, Y. Tanaka, A. D. Frawley, Saskia Mioduszewski, T. K. Shea, S. H. Aronson, Jen-Chieh Peng, R. A. Soltz, H. Borel, S. N. White, M. Grosse Perdekamp, H. Kobayashi, J. Milan, J. L. Nagle, S. Afanasiev, A. Ster, Agneta Oskarsson, H. W. Van Hecke, V. Ladygin, M. Gonin, Y. Berdnikov, Y. Akiba, S. Nagamiya, Kazuhiro Tanaka, Klaus Johannes Reygers, V. Kochetkov, K. Imai, M. Issah, Yves Roland Schutz, A. G. Hansen, Dong Jo Kim, Shingo Sakai, P. Chand, T. L. Thomas, R. Azmoun, B. D. Fox, H. Tsuruoka, E. Vznuzdaev, V. Baublis, David Olle Rickard Silvermyr, D. E. Fields, B. V. Jacak, T. Shiina, Minghui Liu, W. Holzmann, Kenneth Francis Read, K. Kurita, S. Bathe, S. Borenstein, Kensuke Homma, J. Gosset, F. Messer, W. E. Sondheim, E. Melnikov, J. P. Sullivan, Osamu Jinnouchi, V. Bumazhnov, A. K. Purwar, T. E. Miller, Y. Cobigo, Sean A. Kelly, J. M. Heuser, S. Chernichenko, Ryugo S. Hayano, Norio Saito, Wei Xie, M. Heffner, E. M. Takagui, P. Tarján, A. Deshpande, S. Yokkaichi, R. Santo, J. S. Chai, S. Kametani, W. C. Chang, E. J. Desmond, A. Enokizono, David D'Enterria, T. Ichihara, S. Batsouli, A. P.T. Palounek, Y. I. Makdisi, D. Pal, Roy A. Lacey, Y. Riabov, Kenta Shigaki, J. H. Kang, H. Lim, K. N. Barish, P. L. McGaughey, J. S. Haggerty, B. Bassalleck, F. Mühlbacher, F. K. Wohn, T. K. Ghosh, Matthew G. Reuter, A. Romana, N. N. Ajitanand, R. S. Towell, J. M. Burward-Hoy, M. Sivertz, M. Hibino, J. Park, S. Garpman, Y. J. Kwon, J. E. Frantz, L. Ewell, M. J. Tannenbaum, Takahiro Nakamura, J. B. Choi, Senta Greene, M. Nara, C. P. Singh, I. D. Ojha, Alexander Malakhov, G. R. Young, Alexander Milov, G. Gogiberidze, H. A. Gustafsson, V. V. Ikonnikov, M. Ono, R. P. Pisani, M. E. Sadler, L. Sanfratello, D. Bucher, A. Durum, V. Babintsev, Y. Watanabe, O. Drapier, J. T. Mitchell, A. S. Nyanin, H. Masui, R. E. Mischke, O. Dietzsch, E. P. Hartouni, Gerry Bunce, E. O'Brien, C. Zhang, Vladislav Manko, D. S. Brown, S. F. Pate, D. P. Morrison, M. D. Marx, Dipanwita Dutta, H. Delagrange, T. Chujo, P. D. Barnes, A. Yanovich, R. Amirikas, Viktor Riabov, A. Glenn, T. C. Awes, Julia Velkovska, V. E. Semenov, Nikolay Tyurin, X. Camard, B. Khachaturov, S. Y. Fung, S. Esumi, Jun Kikuchi, X. R. Wang, I. E. Yushmanov, M. Rosati, A. Parmar, M. Velkovsky, Jan Rak, W. Guryn, C. L. Woody, T. Matsumoto, A. Soldatov, Yanwen Liu, M. Kopytine, S. Zhou, Christine Angela Aidala, W. A. Zajc, C. Y. Chi, S. P. Sorensen, A. Baldisseri, L. Aphecetche, John Hill, K. Oyama, A. A. Vinogradov, Henrik Tydesjö, D. Mukhopadhyay, A. Denisov, V. Cianciolo, M. L. Brooks, R. Granier de Cassagnac, Toru Sugitate, L. D. Isenhower, V. Papavassiliou, S. S. Adler, G. S. Kyle, Jiangyong Jia, I. Ravinovich, Y. Goto, Peter M. Nilsson, James Alexander, F. Plasil, Sergey Fokin, Y. Yang, K. Ozawa, Y. Jeong, R. Averbeck, Byung-Sik Hong, B. M. Johnson, François Fleuret, A. Bazilevsky, S. Sawada, Joakim Nystrand, Philippe Rosnet, J. D. Tepe, A. Franz, C. L. Silva, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, V. S. Pantuev, Alexandre Lebedev, I. V. Sourikova, H. Torii, J. G. Lajoie, S. S. Ryu, S. S. Kapoor, D. M. Lee, A. Hoover, Brian Cole, Jason Newby, K. Kiyoyama, B. K. Nandi, J. Murata, T. Hachiya, T. Kohama, Alexei Khanzadeev, M. Harvey, N. Bruner, E. Stenlund, Masayasu Ishihara, Susumu Sato, Junji Tojo, I. J. Choi, German Martinez, K. Okada, M. Muniruzzaman, F. Staley, H. En'yo, P. Constantin, M. J. Leitch, Hiroaki Ohnishi, K. Tanida, A. Kozlov, R. Seto, H. Buesching, X. He, Xingguo Li, V. Peresedov, L. Kochenda, H. J. Kim, L. Villatte, Charles Maguire, S. Leckey, R. du Rietz, Josh Moss, M. Tamai, E. Kistenev, A. Litvinenko, M. A. Volkov, A. Isupov, C. A. Ogilvie, T. K. Hemmick, Yasuo Miake, Hideki Hamagaki, G. David, C. H. Kuberg, Y. Kuroki, W. Y. Jang, Do-Won Kim, P. J. Kroon, Dong-Hun Kim, N. Grau, L. Zolin, P. W. Stankus, S. P. Stoll, D. Jouan, N. Kamihara, S. C. Johnson, F. Matathias, Y. J. Mao, M. J. Kweon, A. Drees, E. Kim, Atsushi Taketani, V.A. Onuchin, S. Belikov, K. S. Joo, K. El Chenawi, M. R. Shaw, Martin Purschke, D. Kotchetkov, S. Bhagavatula, Z. Fraenkel, J. G. Boissevain, R. K. Choudhury, K. Katou, A. Kiyomichi, C. Pinkenburg, M. Stepanov, G. Roche, I. Tserruya, J. Chiba, and Yu. Efremenko
Subjects: Physics, 010308 nuclear & particles physics, Hadron, Elliptic flow, General Physics and Astronomy, 01 natural sciences, Charged particle, Nuclear physics, Distribution (mathematics), 0103 physical sciences, Harmonic, Particle, High Energy Physics::Experiment, PHENIX detector, Nuclear Experiment, 010306 general physics, Anisotropy
Abstract: The anisotropy parameter (v(2)), the second harmonic of the azimuthal particle distribution, has been measured with the PHENIX detector in Au+Au collisions at roots(NN)=200 GeV for identified and inclusive charged particle production at central rapidities (eta 2 GeV/c, in marked contrast to the predictions of a hydrodynamical model. A quark-coalescence model is also investigated.
Published: 2003

182. Scaling Properties of Proton and Antiproton Production insNN=200 GeVAu+AuCollisions

Author: I. Ravinovich, Y. Watanabe, S. Y. Fung, K. Tanida, A. Soldatov, V. I. Kochetkov, Alberto Baldisseri, F. Plasil, Hiroaki Ohnishi, Jen-Chieh Peng, C. L. Silva, J. Milan, M. Rosati, Susumu Sato, M. Muniruzzaman, Shih-Chang Lee, T. Peitzmann, N. Kamihara, Saskia Mioduszewski, H. Kobayashi, B. Khachaturov, Y. I. Makdisi, M. Velkovsky, K. S. Sim, S. S. Ryu, P. Tarján, John Hill, K. Oyama, V. Bumazhnov, Sean A. Kelly, F. Matathias, Charles Maguire, S. Leckey, C. L. Woody, T. E. Miller, Dong Jo Kim, H. Tsuruoka, T. Matsumoto, R. du Rietz, R. Santo, A. Enokizono, X. He, D. E. Fields, B. V. Jacak, J. Gosset, Yves Roland Schutz, D. Pal, Toru Sugitate, L. D. Isenhower, Josh Moss, B. D. Fox, J. P. Sullivan, Joakim Nystrand, W. A. Zajc, H. Buesching, A. Drees, V. Peresedov, François Fleuret, V. Baublis, A. Denisov, M. Tamai, V. Cianciolo, Senta Greene, E. M. Takagui, M. Nara, Alexander Milov, A. K. Purwar, O. Drapier, E. Kistenev, W. C. Chang, R. S. Towell, J. S. Chai, Margaret Harvey, K. Imai, Martin Purschke, Hideki Hamagaki, G. David, C. H. Kuberg, Y. J. Kwon, Xingguo Li, D. P. Morrison, S. Afanasiev, A. Ster, Sergey Fokin, I. V. Sourikova, H. Torii, M. A. Volkov, V. E. Semenov, E. O'Brien, A. A. Vinogradov, Henrik Tydesjö, Jiangyong Jia, Y. Goto, H. Masui, G. R. Young, R. A. Soltz, L. Sanfratello, Wei Xie, S. Sawada, A. Hoover, S. P. Sorensen, S. Borenstein, S. Butsyk, J. D. Tepe, Vladimir Samsonov, A. Deshpande, S. Garpman, I. Tserruya, F. Messer, Jan Rak, W. Guryn, A. Franz, I. Otterlund, D. Kotchetkov, S. Bhagavatula, Peter M. Nilsson, P. L. McGaughey, C. A. Ogilvie, S. N. White, Yu. Efremenko, R. Lacey, S. S. Kapoor, V. Singh, S. Yokkaichi, P. J. Kroon, C. Y. Chi, J. M. Heuser, N. N. Ajitanand, R. Granier de Cassagnac, T. K. Hemmick, J. B. Choi, H. A. Gustafsson, K. N. Barish, Dong-Hun Kim, Yasuo Miake, G. B. Kim, D. Koehler, David Olle Rickard Silvermyr, R. Azmoun, J. G. Lajoie, S. F. Pate, J. M. Burward-Hoy, T. Hachiya, M. Ono, Y. Yang, C. P. Singh, Y. Tanaka, V. S. Pantuev, G. Gogiberidze, T. K. Shea, Yi Liu, A. G. Hansen, Shingo Sakai, O. Dietzsch, B. M. Johnson, E. P. Hartouni, Takahiro Nakamura, David D'Enterria, R. E. Mischke, C. Zhang, Z. Fraenkel, J. L. Nagle, T. L. Thomas, L. Kochenda, N. Grau, L. Aphecetche, A. Isupov, J. G. Boissevain, D. Mukhopadhyay, Dipanwita Dutta, I. J. Choi, Y. Cobigo, M. E. Sadler, R. P. Pisani, Y. Kuroki, W. Y. Jang, K. Katou, M. Gonin, Junji Tojo, X. R. Wang, T. Kohama, Ryugo S. Hayano, Brian Cole, P. W. Stankus, J. E. Frantz, Viktor Riabov, Hirohiko Sato, Y. Riabov, S. K. Tuli, M. L. Brooks, G. Grosse Perdekamp, Julia Velkovska, A. Kiyomichi, C. Pinkenburg, A. Durum, W. E. Sondheim, Nikolay Tyurin, V. P. Ladygin, Kenta Shigaki, F. Staley, Herve Borel, K. Okada, M. Stepanov, K. Kurita, S. Batsouli, D. S. Brown, G. Roche, S. Kametani, A. S. Nyanin, A. Glenn, A. Taketani, V. Papavassiliou, A. G. Litvinenko, S. P. Stoll, M. Sivertz, H. En'yo, P. Constantin, J. H. Kang, J. S. Haggerty, A. Romana, M. J. Leitch, R. K. Choudhury, H. J. Kim, Osamu Jinnouchi, G. Bunce, L. Villatte, F. K. Wohn, S. C. Johnson, Y. J. Mao, T. K. Ghosh, A. Kozlov, Matthew G. Reuter, R. Seto, D. Jouan, A. P.T. Palounek, M. Issah, M. J. Kweon, E. Vznuzdaev, I. D. Ojha, N. Bruner, E. Stenlund, Alexander Malakhov, T. Shiina, Agneta Oskarsson, D. W. Kim, T. C. Awes, Kyoichiro Ozawa, Jun Kikuchi, L. S. Zolin, Masamichi Ishihara, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, K. Kiyoyama, B. K. Nandi, S. Bathe, German Martinez, H. Delagrange, M. Kopytine, S. Zhou, Minghui Liu, M. J. Tannenbaum, V. V. Ikonnikov, D. Bucher, J. Chiba, M. Sakai, G. C. Mishra, Takao Sakaguchi, C. Klein-Boesing, A. D. Frawley, S. H. Aronson, W. Holzmann, M. Heffner, P. D. Barnes, A. Yanovich, Kensuke Homma, Kenneth Francis Read, T. Ichihara, E. Melnikov, S. Chernichenko, H. Lim, B. Bassalleck, F. Mühlbacher, L. Ewell, J. T. Mitchell, Vladislav Manko, M. D. Marx, E. J. Desmond, T. Chujo, X. Camard, A. Parmar, V.A. Onuchin, Christine Angela Aidala, S. Belikov, K. S. Joo, M. Hibino, J. Park, S. Esumi, K. El Chenawi, M. R. Shaw, R. Amirikas, I. E. Yushmanov, Eun-Hee Kim, S. S. Adler, G. S. Kyle, James Alexander, Y. Berdnikov, Y. Akiba, Y. Jeong, R. Averbeck, Byung-Sik Hong, S. Nagamiya, Kazuhiro Tanaka, A. Bazilevsky, Philippe Rosnet, Alexandre Lebedev, Jason Newby, Klaus Johannes Reygers, D. M. Lee, A. Khanzadeev, J. Murata, Norio Saito, V. Babintsev, H. W. Van Hecke, and P. Chand
Subjects: Physics, Range (particle radiation), Particle physics, Proton, 010308 nuclear & particles physics, Nuclear Theory, Hadron, General Physics and Astronomy, 01 natural sciences, Nuclear physics, Pion, Antiproton, Yield (chemistry), 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Bar (unit)
Abstract: We report on the yield of protons and antiprotons, as a function of centrality and transverse momentum, in Au+Au collisions at rootS(NN)=200 GeV measured at midrapidity by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider. In central collisions at intermediate transverse momenta (1.5
Published: 2003

183. Measurement of nonrandom event-by-event fluctuations of average transverse momentum in square root of (sNN)=200 GeV Au+Au and p+p collisions

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D G, d'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, O, Drapier, A, Drees, R, du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V S, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, van Hecke, J, Velkovska, M, Velkovsky, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, S J, Zhou, and L, Zolin
Abstract: Event-by-event fluctuations of the average transverse momentum of produced particles near midrapidity have been measured by the PHENIX Collaboration in square root of (sNN)=200 GeV Au+Au, and p+p collisions at the Relativistic Heavy Ion Collider. The fluctuations are observed to be in excess of the expectation for statistically independent particle emission for all centralities. The excess fluctuations exhibit a dependence on both the centrality of the collision and on the pT range over which the average is calculated. Both the centrality and pT dependence can be well reproduced by a simulation of random particle production with the addition of contributions from hard-scattering processes.
Published: 2003

184. 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

185. Suppressedπ0Production at Large Transverse Momentum in CentralAu+AuCollisions atsNN=200 GeV

Author: V.A. Onuchin, S. Belikov, K. S. Joo, J. G. Boissevain, K. Katou, B. Khachaturov, V. Ladygin, M. Gonin, A. Kiyomichi, J. S. Chai, K. N. Barish, C. Pinkenburg, A. Litvinenko, M. A. Volkov, T. Matsumoto, A. Isupov, S. Butsyk, Vladimir Samsonov, I. Otterlund, P. L. McGaughey, M. Stepanov, K. El Chenawi, M. R. Shaw, Sean A. Kelly, Y. Yang, G. Roche, M. Ono, J. M. Burward-Hoy, C. A. Ogilvie, B. D. Fox, K. Kurita, Wei Xie, N. N. Ajitanand, B. M. Johnson, H. W. Van Hecke, T. K. Hemmick, Joakim Nystrand, Yasuo Miake, V. Kochetkov, A. Deshpande, K. A. Drees, D. Pal, M. Sivertz, L. Kochenda, M. L. Brooks, Jen-Chieh Peng, H. Kobayashi, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, S. Nagamiya, Kazuhiro Tanaka, Klaus Johannes Reygers, Y. Kuroki, S. Kametani, J. Milan, J. L. Nagle, Brian Cole, Takahiro Nakamura, S. C. Johnson, Y. J. Mao, M. J. Kweon, Y. I. Makdisi, P. Chand, X. He, W. Y. Jang, V. Peresedov, Y. Watanabe, S. Esumi, M. E. Sadler, S. Afanasiev, A. Ster, J. H. Kang, J. S. Haggerty, A. Romana, J. B. Choi, T. Peitzmann, Saskia Mioduszewski, H. J. Kim, Senta Greene, T. Ichihara, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, A. Soldatov, M. Nara, M. J. Tannenbaum, Dong Jo Kim, E. J. Desmond, Osamu Jinnouchi, E. Kim, E. P. Hartouni, A. Durum, Yves Roland Schutz, M. Hibino, Atsushi Taketani, W. A. Zajc, V. V. Ikonnikov, C. L. Woody, C. P. Singh, H. Tsuruoka, Hiroaki Ohnishi, V. Bumazhnov, S. P. Stoll, S. Bathe, S. Borenstein, F. Messer, T. C. Awes, K. Kiyoyama, L. Villatte, Jun Kikuchi, B. K. Nandi, J. Park, L. Aphecetche, Charles Maguire, S. Leckey, E. O'Brien, D. S. Brown, A. Denisov, V. Cianciolo, J. M. Heuser, E. M. Takagui, J. Gosset, Martin Purschke, J. P. Sullivan, D. Bucher, R. du Rietz, Josh Moss, F. K. Wohn, R. A. Soltz, Y. J. Kwon, J. Chiba, M. Sakai, G. Bunce, K. Tanida, P. Tarján, M. Heffner, Minghui Liu, R. Amirikas, German Martinez, W. C. Chang, D. Jouan, S. Sawada, J. D. Tepe, Kensuke Homma, E. Melnikov, D. Kotchetkov, S. Bhagavatula, L. Sanfratello, G. C. Mishra, M. Grosse Perdekamp, Sergey Fokin, G. Gogiberidze, Roy A. Lacey, T. K. Ghosh, Matthew G. Reuter, I. E. Yushmanov, R. S. Towell, Z. Fraenkel, Takao Sakaguchi, R. K. Choudhury, S. Yokkaichi, I. V. Sourikova, H. Torii, M. Tamai, T. L. Thomas, Kenneth Francis Read, E. Kistenev, A. Franz, Alexander Milov, N. Kamihara, C. Klein-Boesing, D. E. Fields, F. Matathias, S. S. Kapoor, A. Hoover, A. D. Frawley, I. D. Ojha, Alexander Malakhov, S. Batsouli, O. Drapier, Ryugo S. Hayano, David Olle Rickard Silvermyr, V. S. Pantuev, S. Chernichenko, H. Lim, M. Harvey, B. V. Jacak, A. Drees, Y. Riabov, A. K. Purwar, D. P. Morrison, S. H. Aronson, A. Kozlov, B. Bassalleck, F. Mühlbacher, Junji Tojo, H. Buesching, V. E. Semenov, Kenta Shigaki, L. Ewell, S. F. Pate, Jason Newby, Y. Tanaka, R. Seto, W. Holzmann, S. S. Adler, J. Murata, G. S. Kyle, K. Okada, T. K. Shea, David D'Enterria, I. Tserruya, H. Delagrange, C. Y. Chi, Alexei Khanzadeev, H. En'yo, P. Constantin, A. S. Nyanin, M. J. Leitch, Yu. Efremenko, James Alexander, N. Bruner, Xingguo Li, E. Stenlund, Yanwen Liu, M. Kopytine, S. Zhou, V. Singh, R. P. Pisani, Y. Jeong, R. Averbeck, O. Dietzsch, Alberto Baldisseri, Byung-Sik Hong, X. R. Wang, G. B. Kim, A. Bazilevsky, D. Koehler, Nikolay Tyurin, Philippe Rosnet, P. D. Barnes, A. Yanovich, M. Issah, D. Mukhopadhyay, Alexandre Lebedev, V. Papavassiliou, C. L. Silva, A. P.T. Palounek, D. M. Lee, T. E. Miller, Hirohiko Sato, S. K. Tuli, T. Kohama, Masayasu Ishihara, S. P. Sorensen, Dipanwita Dutta, Peter M. Nilsson, R. Santo, A. Enokizono, Susumu Sato, M. Muniruzzaman, F. Staley, E. Vznuzdaev, V. Baublis, A. G. Hansen, Shingo Sakai, S. N. White, S. Garpman, T. Shiina, J. G. Lajoie, T. Hachiya, Julia Velkovska, I. J. Choi, H. A. Gustafsson, H. Masui, M. Rosati, M. Velkovsky, W. E. Sondheim, J. T. Mitchell, R. E. Mischke, C. Zhang, S. Y. Fung, Vladislav Manko, M. D. Marx, T. Chujo, John Hill, K. Oyama, X. Camard, A. A. Vinogradov, Henrik Tydesjö, Viktor Riabov, A. Parmar, Toru Sugitate, L. D. Isenhower, Christine Angela Aidala, François Fleuret, Jiangyong Jia, Y. Goto, Norio Saito, V. Babintsev, Shih-Chang Lee, K. S. Sim, K. Imai, Jan Rak, W. Guryn, R. Granier de Cassagnac, K. Ozawa, G. R. Young, N. Grau, R. Azmoun, L. Zolin, P. W. Stankus, Y. Cobigo, I. Ravinovich, F. Plasil, Hideki Hamagaki, G. David, C. H. Kuberg, S. S. Ryu, Do-Won Kim, P. J. Kroon, Dong-Hun Kim, J. E. Frantz, Herve Borel, and A. Glenn
Subjects: Physics, Nuclear physics, Pion, 010308 nuclear & particles physics, 0103 physical sciences, Transverse momentum, General Physics and Astronomy, High Energy Physics::Experiment, Multiplicity (chemistry), Nuclear Experiment, 010306 general physics, 01 natural sciences, Spectral line
Abstract: Transverse momentum spectra of neutral pions in the range 1 < p_T < 10 GeV/c have been measured at mid-rapidity by the PHENIX experiment at RHIC in Au+Au collisions at sqrt(s_NN) = 200 GeV. The pi^0 multiplicity in central reactions is significantly below the yields measured at the same sqrt(s_NN) in peripheral Au+Au and p+p reactions scaled by the number of nucleon-nucleon collisions. For the most central bin, the suppression factor is ~2.5 at p_T = 2 GeV/c and increases to ~4-5 at p_T ~= 4 GeV/c. At larger p_T, the suppression remains constant within errors. The deficit is already apparent in semi-peripheral reactions and increases smoothly with centrality.
Published: 2003

186. J/psi production from proton-proton collisions at square root of s=200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D G, d'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, O, Drapier, A, Drees, K A, Drees, R, du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El-Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V S, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, van Hecke, J, Velkovska, M, Velkovsky, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, S J, Zhou, and L, Zolin
Abstract: J/psi production has been measured in proton-proton collisions at square root of s=200 GeV over a wide rapidity and transverse momentum range by the PHENIX experiment at the Relativistic Heavy Ion Collider. Distributions of the rapidity and transverse momentum, along with measurements of the mean transverse momentum and total production cross section are presented and compared to available theoretical calculations. The total J/psi cross section is 4.0+/-0.6(stat)+/-0.6(syst)+/-0.4(abs) mu b. The mean transverse momentum is 1.80+/-0.23(stat)+/-0.16(syst) GeV/c.
Published: 2003

187. Absence of suppression in particle production at large transverse momentum in sqrt[s(NN)]=200 GeV d+Au collisions

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, A, Al-Jamel, J, Alexander, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, R, Averbeck, T C, Awes, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, F, Bauer, A, Bazilevsky, S, Belikov, M T, Bjorndal, J G, Boissevain, H, Borel, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, J P, Cussonneau, D, d'Enterria, K, Das, G, David, F, Deák, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, J L, Drachenberg, O, Drapier, A, Drees, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, H, En'yo, B, Espagnon, S, Esumi, D E, Fields, C, Finck, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, Y, Fukao, S-Y, Fung, S, Gadrat, M, Germain, A, Glenn, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, K, Hasuko, R, Hayano, X, He, M, Heffner, T K, Hemmick, J M, Heuser, P, Hidas, H, Hiejima, J C, Hill, R, Hobbs, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Horaguchi, T, Ichihara, V V, Ikonnikov, K, Imai, M, Inuzuka, D, Isenhower, L, Isenhower, M, Issah, A, Isupov, B V, Jacak, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, M, Kaneta, J H, Kang, K, Katou, T, Kawabata, A, Kazantsev, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D J, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kinney, A, Kiss, E, Kistenev, A, Kiyomichi, C, Klein-Boesing, H, Kobayashi, V, Kochetkov, R, Kohara, B, Komkov, M, Konno, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, G J, Kunde, K, Kurita, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, J G, Lajoie, Y, Le Bornec, A, Lebedev, S, Leckey, D M, Lee, M J, Leitch, M A L, Leite, X, Li, X H, Li, H, Lim, A, Litvinenko, M X, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, H, Masui, F, Matathias, T, Matsumoto, M C, McCain, P L, McGaughey, Y, Miake, T E, Miller, A, Milov, S, Mioduszewski, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, D, Mukhopadhyay, M, Muniruzzaman, S, Nagamiya, J L, Nagle, T, Nakamura, J, Newby, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, H, Okada, K, Okada, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, V, Penev, J-C, Peng, H, Pereira, V, Peresedov, A, Pierson, C, Pinkenburg, R P, Pisani, M L, Purschke, A K, Purwar, J, Qualls, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, S, Rosendahl, P, Rosnet, V L, Rykov, S S, Ryu, N, Saito, T, Sakaguchi, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, T K, Shea, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, A, Sickles, C L, Silva, D, Silvermyr, K S, Sim, A, Soldatov, R A, Soltz, W E, Sondheim, S, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, S, Takagi, E M, Takagui, A, Taketani, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, T L, Thomas, M, Togawa, J, Tojo, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, H, Tydesjö, N, Tyurin, T J, Uam, H W, van Hecke, J, Velkovska, M, Velkovsky, V, Veszprémi, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, N, Willis, F K, Wohn, C L, Woody, W, Xie, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, J, Zimányi, L, Zolin, and X, Zong
Abstract: Transverse momentum spectra of charged hadrons with p(T)8 GeV/c and neutral pions with p(T)10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in d+Au collisions at sqrt[s(NN)]=200 GeV. The measured yields are compared to those in p+p collisions at the same sqrt[s(NN)] scaled up by the number of underlying nucleon-nucleon collisions in d+Au. The yield ratio does not show the suppression observed in central Au+Au collisions at RHIC. Instead, there is a small enhancement in the yield of high momentum particles.
Published: 2003

188. Elliptic flow of identified hadrons in Au+Au collisions at sqrt sNN =200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D G, D'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, O, Drapier, A, Drees, R, du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, L D, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V S, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, van Hecke, J, Velkovska, M, Velkovsky, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: The anisotropy parameter (v(2)), the second harmonic of the azimuthal particle distribution, has been measured with the PHENIX detector in Au+Au collisions at sqrt[s(NN)]=200 GeV for identified and inclusive charged particle production at central rapidities (|eta|0.35) with respect to the reaction plane defined at high rapidities (|eta|=3-4 ). We observe that the v(2) of mesons falls below that of (anti)baryons for p(T)2 GeV/c, in marked contrast to the predictions of a hydrodynamical model. A quark-coalescence model is also investigated.
Published: 2003

189. Suppressed pi(0) production at large transverse momentum in central Au+Au collisions at sqrt[s(NN)]=200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D G, d'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, O, Drapier, A, Drees, K A, Drees, R, du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, L, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V S, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, van Hecke, J, Velkovska, M, Velkovsky, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: Transverse momentum spectra of neutral pions in the range 1p(T)10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in Au+Au collisions at sqrt[s(NN)]=200 GeV. The pi(0) multiplicity in central reactions is significantly below the yields measured at the same sqrt[s(NN)] in peripheral Au+Au and p+p reactions scaled by the number of nucleon-nucleon collisions. For the most central bin, the suppression factor is approximately 2.5 at p(T)=2 GeV/c and increases to approximately 4-5 at p(T) approximately 4 GeV/c. At larger p(T), the suppression remains constant within errors. The deficit is already apparent in semiperipheral reactions and increases smoothly with centrality.
Published: 2003

190. Midrapidity neutral-pion production in proton-proton collisions at square root s = 200 GeV

Author: S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, J, Alexander, R, Amirikas, L, Aphecetche, S H, Aronson, R, Averbeck, T C, Awes, R, Azmoun, V, Babintsev, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, Y, Berdnikov, S, Bhagavatula, J G, Boissevain, H, Borel, S, Borenstein, M L, Brooks, D S, Brown, N, Bruner, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, X, Camard, J-S, Chai, P, Chand, W C, Chang, S, Chernichenko, C Y, Chi, J, Chiba, M, Chiu, I J, Choi, J, Choi, R K, Choudhury, T, Chujo, V, Cianciolo, Y, Cobigo, B A, Cole, P, Constantin, D G, D'Enterria, G, David, H, Delagrange, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, O, Drapier, A, Drees, K A, Drees, R, Du Rietz, A, Durum, D, Dutta, Y V, Efremenko, K, El Chenawi, A, Enokizono, H, En'yo, S, Esumi, L, Ewell, D E, Fields, F, Fleuret, S L, Fokin, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, S-Y, Fung, S, Garpman, T K, Ghosh, A, Glenn, G, Gogiberidze, M, Gonin, J, Gosset, Y, Goto, R, Granier De Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, W, Guryn, H-A, Gustafsson, T, Hachiya, J S, Haggerty, H, Hamagaki, A G, Hansen, E P, Hartouni, M, Harvey, R, Hayano, X, He, M, Heffner, T K, Hemmick, J M, Heuser, M, Hibino, J C, Hill, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Ichihara, V V, Ikonnikov, K, Imai, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, B V, Jacak, W Y, Jang, Y, Jeong, J, Jia, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, S, Kametani, N, Kamihara, J H, Kang, S S, Kapoor, K, Katou, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, D W, Kim, E, Kim, G-B, Kim, H J, Kim, E, Kistenev, A, Kiyomichi, K, Kiyoyama, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, D, Koehler, T, Kohama, M, Kopytine, D, Kotchetkov, A, Kozlov, P J, Kroon, C H, Kuberg, K, Kurita, Y, Kuroki, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, V, Ladygin, J G, Lajoie, A, Lebedev, S, Leckey, D M, Lee, S, Lee, M J, Leitch, X H, Li, H, Lim, A, Litvinenko, M X, Liu, Y, Liu, C F, Maguire, Y I, Makdisi, A, Malakhov, V I, Manko, Y, Mao, G, Martinez, M D, Marx, H, Masui, F, Matathias, T, Matsumoto, P L, McGaughey, E, Melnikov, F, Messer, Y, Miake, J, Milan, T E, Miller, A, Milov, S, Mioduszewski, R E, Mischke, G C, Mishra, J T, Mitchell, A K, Mohanty, D P, Morrison, J M, Moss, F, Mühlbacher, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, J L, Nagle, T, Nakamura, B K, Nandi, M, Nara, J, Newby, P, Nilsson, A S, Nyanin, J, Nystrand, E, O'Brien, C A, Ogilvie, H, Ohnishi, I D, Ojha, K, Okada, M, Ono, V, Onuchin, A, Oskarsson, I, Otterlund, K, Oyama, K, Ozawa, D, Pal, A P T, Palounek, V S, Pantuev, V, Papavassiliou, J, Park, A, Parmar, S F, Pate, T, Peitzmann, J-C, Peng, V, Peresedov, C, Pinkenburg, R P, Pisani, F, Plasil, M L, Purschke, A K, Purwar, J, Rak, I, Ravinovich, K F, Read, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, G, Roche, A, Romana, M, Rosati, P, Rosnet, S S, Ryu, M E, Sadler, N, Saito, T, Sakaguchi, M, Sakai, S, Sakai, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, V, Semenov, R, Seto, M R, Shaw, T K, Shea, T-A, Shibata, K, Shigaki, T, Shiina, C L, Silva, D, Silvermyr, K S, Sim, C P, Singh, V, Singh, M, Sivertz, A, Soldatov, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, F, Staley, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, J P, Sullivan, E M, Takagui, A, Taketani, M, Tamai, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, P, Tarján, J D, Tepe, T L, Thomas, J, Tojo, H, Torii, R S, Towell, I, Tserruya, H, Tsuruoka, S K, Tuli, H, Tydesjö, N, Tyurin, H W, Van Hecke, J, Velkovska, M, Velkovsky, L, Villatte, A A, Vinogradov, M A, Volkov, E, Vznuzdaev, X R, Wang, Y, Watanabe, S N, White, F K, Wohn, C L, Woody, W, Xie, Y, Yang, A, Yanovich, S, Yokkaichi, G R, Young, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: The invariant differential cross section for inclusive neutral-pion production in p+p collisions at sqrt[s]=200 GeV has been measured at midrapidity (|eta|0.35) over the range 1p(T) less, similar 14 GeV/c by the PHENIX experiment at the Relativistic Heavy Ion Collider. Predictions of next-to-leading order perturbative QCD calculations are consistent with these measurements. The precision of our result is sufficient to differentiate between prevailing gluon-to-pion fragmentation functions.
Published: 2003

191. Nonlinear balance and exchange of stability in dynamics of solitons, peakons, ramps/cliffs and leftons in a 1+1 nonlinear evolutionary PDE

Author: Martin F. Staley and Darryl D. Holm
Subjects: Physics, Balance (metaphysics), Partial differential equation, Turbulence, Dynamics (mechanics), FOS: Physical sciences, General Physics and Astronomy, Pattern Formation and Solitons (nlin.PS), Nonlinear Sciences - Chaotic Dynamics, Stability (probability), Nonlinear Sciences - Pattern Formation and Solitons, Waves and shallow water, Nonlinear system, Flow velocity, Chaotic Dynamics (nlin.CD), Mathematical physics
Abstract: We study exchange of stability in the dynamics of solitary wave solutions under changes in the nonlinear balance in a 1+1 evolutionary partial differential equation related both to shallow water waves and to turbulence. We find that solutions of the equation $ m_t + um_x +b u_xm = \nu m_{xx} $ with $m = u - \alpha^2 u_{xx}$ for fluid velocity $u(x,t)$ change their behavior at the special values $b=0,\pm1,\pm2,\pm3$., Comment: 15 pages, 8 figures. For this replacement of the original submission, we: (1) Introduced key explanations that clarify the differences between Figs 1 and 2, versus 3 and 4. (2) Expanded the introduction to provide added motivation and precise definitions. (3) Added section and subsection headings to make the plan of the paper more evident. (4) Added a brief summary
Published: 2003

192. PHENIX detector overview

Author: C. H. Kuberg, N. N. Ajitanand, J.D. Lopez, J. Chiba, L. Kotchenda, B. D. Fox, S. Bhaganatula, P. Pitukhin, Shunji Nishimura, J. Behrendt, R. A. Soltz, D.E. Hurst, F. Heistermann, G.W. Thornton, Takahiro Nakamura, G. C. Mishra, Ryo Yamamoto, Takao Sakaguchi, J.B. Archuleta, M. Grosse Perdekamp, A. L. Godoi, C. Blume, G.W. Hart, C. Klein-Boesing, A. Durum, Stephen Daniels, X. Liu, J. D. Tepe, V. Bumazhnov, A. D. Frawley, G. Riabov, A. Usachev, Wuzheng Meng, C. L. Woody, J. LaBounty, M. Issah, H. Funahashi, D. S. Brown, J. Mead, A. Lebedev, L. Hawkins, G.A. Sleege, A. Shajii, P.S. Willis, A. Khomutnikov, J.S. Hicks, D. Engo, A. Ster, R. Cunningham, S. Chollet, A. G. Hansen, S. H. Aronson, E. Taniguchi, W.D. Thomas, E. Vznuzdaev, S. F. Pate, H. Tsuruoka, R.B. Chappell, K. N. Barish, Felix E. Obenshain, V. Baublis, T. Honaguchi, I. V. Sourikova, H. Torii, V.D. Lebedev, T. Shiina, David Olle Rickard Silvermyr, S. Batsouli, E. P. Hartouni, Gerry Bunce, W. Lenz, T. L. Thomas, W. Holzmann, R. Ruggiero, H.D. Skank, Charles Maguire, Y. Sumi, M. Ono, Y. J. Kwon, W. Liccardi, Ryugo S. Hayano, B. V. Dinesh, J. Chang, Y. Riabov, J. Bowers, S. S. Adler, G. S. Kyle, K. Enosawa, S. Hahn, H.-J. Kehayias, Kenta Shigaki, V. Papavassiliou, B. Libby, Sébastien Gadrat, A. S. Nyanin, E. Stenlund, E. Bosze, Y. Miyamoto, Y. I. Makdisi, W. C. Chang, F. Messer, Yasushi Nagasaka, J. Banning, D.J. Clark, N. Miftakhov, D. E. Fields, T. Ushiroda, B. V. Jacak, G. T. Danby, M.S. Musrock, T. K. Hemmick, Sean A. Kelly, M. Sugioka, Wei Xie, A. Deshpande, Hiroaki Ohnishi, Y. Yokota, James Alexander, O. Tarasenkova, Jason Newby, J.P. Jones, Wei Tian, R. du Rietz, L. Sanfratello, T.F. Gee, Y. Wan, S. Sakai, S.H. Robinson, V. Vasiliev, J. G. Boissevain, N. Kamihara, V.I. Vishnevskii, An.A. Vorobyov, F. G. Bellaiche, M. Velkovsky, Josh Moss, V. Lebedev, M. Tamai, S. Butsyk, Vladimir Samsonov, K. Katou, C.M. Dabrowski, S. T. Belyaev, P. J. Kroon, Y. Liu, M. J. Tannenbaum, V.S. Kozlov, A. K. Purwar, T. A. Carey, J.R. Archuleta, M. Sekimoto, L. Zhang, V. S. Pantuev, G. Gogiberidze, J.P. Freidberg, E. Kistenev, Nu Xu, A. P.T. Palounek, Vladislav Manko, M. Messer, Athanasios Petridis, A. Kiyomichi, D.W. Crook, M. Murray, Senta Greene, Alexei Khanzadeev, V. V. Ikonnikov, M. Chiu, Ajit Kumar Mohanty, A. Kozlov, C. Velissaris, G. R. Young, R. Averbeck, A. A. Vinogradov, V.V. Kuriatkov, R. Raynis, K. Adcox, J. Tradeski, E.M. Stein, S. Sawada, F. Matathias, Junji Tojo, P. Steinberg, R. Armendariz, B. Azmoun, M.S. Emery, J.L. Thomas, S. S. Kapoor, Junwei Wu, Byung-Sik Hong, A. Bazilevsky, L.W. Wright, R. Seto, Zhedong Zhang, Keith W. Jones, Henrik Tydesjö, C. P. Singh, Mark Allen, Mikhail Ippolitov, M. Pollack, N. Bruner, T. A. Shibata, V.A. Onuchin, W.L. Bryan, S. Garpman, Graham H. Turner, Steven E. Skutnik, Tetsufumi Hirano, Franck Gastaldi, B. Khachaturov, O. Fackler, J.W. Walker, Alexander Milov, M. D. Marx, M. Stepanov, G. Roche, G. Jackson, V. Ivanov, A. Kandasamy, E. O'Brien, C. Pancake, D. Bucher, J. Barrette, Hyun-Chul Kim, J. M. Qualls, J. Milan, M. Rosati, G.P. Solodov, M. Bobrek, T. Matsumoto, X. He, L.Donald Isenhower, H. En'yo, W. W. Kinnison, Michael L. Simpson, P. Constantin, S. Boose, M. C. McCain, Jiangyong Jia, Y. Goto, M. J. Leitch, J. L. Nagle, M. S. Chung, P. Giannotti, R. Rao, C. Witzig, S. Klinksiek, H. Cunitz, Y. Kamyshkov, R. Hoade, R. Lacey, S. Yoneyama, O. Drapier, M. Vznuzdaev, J. H. Kang, T. C. Awes, R. Belkin, X.B. Martinez, S. Belikov, K. S. Joo, R. Machnowski, S. Migluolio, J. S. Haggerty, A. Romana, J. S. Kapustinsky, Hideki Hamagaki, L. Nikkinen, Akira Masaike, D. P. Morrison, Jun Kikuchi, Philippe Rosnet, Joakim Nystrand, N. Starinsky, H. Hara, Y. Tanaka, A. Drees, D.-W. Kim, T. K. Shea, J. Negrin, W. Von Achen, M. Suzuki-Nara, G. David, V. E. Semenov, A. Moore, R. E. Mischke, J. Johnson, C. Zhang, L. L. Chavez, C.T. Hunter, Tai Sakuma, G.T. Alley, M.L. Brooks, T. Chujo, L. Wood, V.S. Griffin, Anders Nils Erik Oskarsson, Riko Higuchi, M. Kann, T. Christ, J. Harder, A. A. Rose, J. Ferrierra, J. DeMoss, D.G. Markushin, B. K. Nandi, Christopher B. Williams, K. Minuzzo, Y. Nakada, John D. Jackson, W. Guryn, M. A. Volkov, R. Conway, R. Thern, E. J. Desmond, Viktor Riabov, R.A. Todd, V. Tarakanov, Z. Sun, F. Toldo, P. L. McGaughey, Yongsun Kim, P. W. Stankus, J. Gosset, S. Esumi, J. P. Sullivan, R. Granier de Cassagnac, N. Ericson, B. R. Schlei, W. A. Zajc, Yuri Efremenko, M. Hibino, M. Kennedy, L.G. Kudin, R. Gentry, J. M. Burward-Hoy, W. Verhoeven, M. Libkind, S. Lin, Z. Li, Dong Jo Kim, T. Shimada, R.H. Hance, A. Denisov, S. Y. Kim, O. Dietzsch, D. M. Lee, V. Cianciolo, Andy W. Brown, K. Karadjev, S.A. Kahn, M. Cutshaw, C. A. Ogilvie, Sergey Fokin, G.G. Moscone, H. Buesching, Dipanwita Dutta, V. Armijo, Iou.A. Koutcheryaev, V. Shangin, A. Hoover, I. Tserruya, V.V. Kashikhin, F. Barta, A.B. Barker, R. Amirikas, Julia Velkovska, L. Villatte, I. E. Yushmanov, V. Shelikhov, T. C. Sangster, L. Paffrath, R. Savino, V. Singh, E. Fujisawa, M.A. Echave, G. B. Kim, J. Gannon, D. Koehler, H. Hayashi, K. Ebisu, Yasuo Miake, M. Lenz, Melissa C. Smith, Xingguo Li, Hirohiko Sato, K. El Chenawi, S. K. Tuli, E. Roschin, D. J. Lim, W. Stokes, Zhongfan Liu, R. Jayakumar, J. Lauret, Aya Sakaguchi, German Martinez, M. Gonin, George Davey Smith, Y. H. Shin, Shih-Chang Lee, Martin Purschke, Y. Kuroki, W. Y. Jang, Minghui Liu, K. S. Sim, R. Begay, Alexander Vasiliev, Sebastian N. White, K. Kurita, M. Sivertz, T. Weimer, Kenneth Francis Read, D. Kotchetkov, T. Plagge, Z. Fraenkel, H.-Å. Gustafsson, A.W. Bland, J. Stewering, S. Bathe, D. Borland, Hiroyuki Sako, K. Imai, F. Kajihara, S. P. Stoll, H. Delagrange, V.A. Evseev, M. Kopytine, K. Yagi, S. Zhou, D.C. Smith, B. Komkov, B.R. Whitus, J. L. Drachenberg, Markus Merschmeyer, C. Britton, Y. Severgin, Norio Saito, S. Wang, T. E. Miller, R. Santo, R. Hutter, A. Enokizono, Kensuke Homma, P. Chung, E. Melnikov, K. Pope, T. Ferdousi, W.F. Sandhoff, R. K. Choudhury, A. Debraine, M.A. Kelley, Yoshio Arai, S.S. Frank, T. Ichihara, S. P. Sorensen, S. C. Johnson, Y. J. Mao, W. Sippach, D. Jouan, S. Chernichenko, M. J. Kweon, K. Koseki, Peter M. Nilsson, A. Franz, J. T. Mitchell, F. K. Wohn, B. Bassalleck, F. Mühlbacher, T. K. Ghosh, L. Ewell, T. Moore, J. G. Lajoie, T. Hachiya, S. A. Nikolaev, M. R. Shaw, K.C. Cook, U. Jagadish, M. Rau, Atsushi Taketani, H. W. Van Hecke, I. D. Ojha, Motoi Inaba, L. Britton, H. Kobayashi, S. Salomone, M. Vassent, S. K. Mark, S. Rankowitz, David D'Enterria, Y. Berdnikov, J. E. Frantz, R. Petersen, J. Simon-Gillo, R. P. Pisani, D. Jaffe, Y. Akiba, P. D. Barnes, Laurent Bernard Aphecetche, Herve Borel, Lennart Osterman, Nikolay Tyurin, S. Nagamiya, Kazuhiro Tanaka, A. Glenn, S. Urasawa, Klaus Johannes Reygers, R. Schleuter, B.C. Montoya, G. Rao, S. Steffens, S. Y. Fung, V. Kochetkov, J.R. Mahon, P. Kravtsov, Nathan Longbotham, Y. Cobigo, Jack Fried, M. Kurata-Nishimura, I. Sibiriak, I. Ravinovich, P. Chand, F. Plasil, L.C. Watkins, Ryan M. Roth, J. Halliwell, S. S. Ryu, D. Autrey, M. Van Lith, Y. Melnikov, Ahmed Al-Jamel, T. Kohama, Masayasu Ishihara, John Hill, K. Oyama, L. Kluberg, B.G. Wong-Swanson, Susumu Sato, A.L. Wintenberg, M. Muniruzzaman, P. O'Conner, F. Staley, S. Markacs, Toru Sugitate, V. Trofimov, S. Kametani, Y. Yang, B. M. Johnson, H. Akikawa, Y. Watanabe, R. Prigl, M.M. Cafferty, François Fleuret, M. Aizama, Brian Cole, R. S. Towell, J. H. Thomas, L. Davis Isenhower, S. Marino, J.C. Biggs, M. J. Bennett, K. Wolniewicz, N. Hayashi, A. Soldatov, D. S. Ho, J. Fellenstein, N. Heine, C. Y. Chi, W.E. Sondheim, E. Lockner, A. A. Tsvetkov, T. Peitzmann, Saskia Mioduszewski, H. Wang, Yves Roland Schutz, C. Pinkenburg, J. Murata, S. Botelho, Shiv K. Gupta, J.-S. Chai, J. M. Heuser, Sumio Kato, E. M. Takagui, I. Shein, I. Otterlund, A.R. Harvey, Alberto Baldisseri, A. Danmura, S. Yokkaichi, S. Held, 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), 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), 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), Harrison M. Ludlam T. Ozaki S., 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, Photon, Muon, Spectrometer, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Detector, Electron, Nuclear matter, 7. Clean energy, 01 natural sciences, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, PHENIX detector, Nuclear Experiment, 010306 general physics, Nucleon, Instrumentation
Abstract: The PHENIX detector is designed to perform a broad study of A-A, p-A, and p-p collisions to investigate nuclear matter under extreme conditions. A wide variety of probes, sensitive to all timescales, are used to study systematic variations with species and energy as well as to measure the spin structure of the nucleon. Designing for the needs of the heavy-ion and polarized-proton programs has produced a detector with unparalleled capabilities. PHENIX measures electron and muon pairs, photons, and hadrons with excellent energy and momentum resolution. The detector consists of a large number of subsystems that are discussed in other papers in this volume. The overall design parameters of the detector are presented. (C) 2002 Elsevier Science B.V. All rights reserved.
Published: 2003

193. Foreword

Author: Thomas F. Staley
Published: 2002

194. Measurement of the Proton and Deuteron Spin Structure Functions g2 and Asymmetry A2

Author: P.L. Anthony, R.G. Arnold, T. Averett, H.R. Band, M.C. Berisso, H. Borel, P.E. Bosted, S.L. Bültmann, M. Buenerd, T.E. Chupp, S. Churchwell, G. Court, D. Crabb, D. Day, P. Decowski, P. DePietro, R. Erbacher, R. Erickson, A. Feltham, H. Fonvieille, E. Frlez, R. Gearhart, V. Ghazikhanian, J. Gomez, K.A. Griffioen, C. Harris, M.A. Houlden, E.W. Hughes, C. Hyde-Wright, G. Igo, S. Incerti, J. Jensen, J.R. Johnson, P.M. King, Yu.G. Kolomensky, S.E. Kuhn, R. Lindgren, R.M. Lombard-Nelsen, J. Marroncle, J. McCarthy, P. McKee, W. Meyer, G.S. Mitchell, J. Mitchell, M. Olson, S. Penttila, G.A. Peterson, G.G. Petratos, R. Pitthan, D. Pocanic, R. Prepost, C. Prescott, L.M. Qin, B. Raue, D. Reyna, L.S. Rochester, S.E. Rock, O. Rondon-Aramayo, F. Sabatie, I. Sick, T. Smith, L. Sorrell, F. Staley, S.St. Lorant, L.M. Stuart, Z. Szalata, Y. Terrien, A. Tobias, L. Todor, T. Toole, S. Trentalange, D. Walz, R.C. Welsh, F. Wesselmann, T.R. Wright, C.C. Young, M. Zeier, H. Zhu, and B. Zihlmann
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Proton, Scattering, media_common.quotation_subject, FOS: Physical sciences, Virtual particle, Absolute value, Electron, Spin structure, Asymmetry, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Sum rule in quantum mechanics, Atomic physics, media_common
Abstract: We have measured the spin structure functions g2p and g2d and the virtual photon asymmetries A2p and A2d over the kinematic range 0.02 < x < 0.8 and 1.0 < Q^2 < 30(GeV/c)^2 by scattering 38.8 GeV longitudinally polarized electrons from transversely polarized NH3 and 6LiD targets.The absolute value of A2 is significantly smaller than the sqrt{R} positivity limit over the measured range, while g2 is consistent with the twist-2 Wandzura-Wilczek calculation. We obtain results for the twist-3 reduced matrix elements d2p, d2d and d2n. The Burkhardt-Cottingham sum rule integral - int(g2(x)dx) is reported for the range 0.02 < x < 0.8., 12 pages, 4 figures, 1 table
Published: 1999

195. Measurements of the proton and deuteron spin structure functionsg1andg2

Author: Timothy Chupp, R. Gearhart, S.St. Lorant, Koji Abe, D. Kawall, P. Raines, C. Y. Prescott, H. Fonvieille, F. S. Dietrich, L. S. Rochester, J. P. Chen, D. Crabb, M. Kuriki, Ch. Hyde-Wright, T. Averett, A. Rijllart, J. Clendenin, J. Morgenstern, Donal Day, L. C. Smith, R. C. Minehart, R. Erbacher, Z. E. Meziani, F. Staley, G. Court, B. Zihlmann, R. Prepost, Emil Frlez, J. R. Johnson, P. Grenier, Timothy B. Smith, Y. Roblin, R. Antonov, R. M. Lombard-Nelsen, C. C. Young, Avraham Klein, R. Pitthan, T. J. Liu, Dinko Pocanic, J. S. McCarthy, R. A. Lindgren, F. Suekane, G. G. Petratos, Ingo Sick, J. Fellbaum, J. Button-Shafer, H. Borel, K. A. Griffioen, S. E. Kuhn, K. Witte, John C. Mitchell, A. Feltham, E. W. Hughes, D. Walz, F.R. Wesselmann, P. E. Bosted, Z. M. Szalata, D. Garvey, J. M. Bauer, Y. Terrien, T. L. Usher, B. Raue, S. Hoibraten, Pascal Steiner, D. Zimmermann, Vincent Breton, H. R. Band, O. Rondon, H. Tang, K. P. Coulter, S. E. Rock, J. Gomez, R. G. Arnold, L. M. Stuart, T. Maruyama, D. Reyna, J. A. Dunne, X.K. Maruyama, C. Comptour, M. Daoudi, T. Akagi, M. Spengos, H. Yuta, P.L. Anthony, W. Meyer, G. H. Zapalac, H. Dutz, J. Marroncle, B. Youngman, and James L. White
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Proton, Deuterium, Full data, Zero (complex analysis), Resonance, Spin structure, Beam energy
Abstract: Measurements are reported of the proton and deuteron spin structure functions ${g}_{1}^{p}$ and ${g}_{1}^{d}$ at beam energies of 29.1, 16.2, and 9.7 GeV, and ${g}_{2}^{p}$ and ${g}_{2}^{d}$ at a beam energy of 29.1 GeV. The integrals ${\ensuremath{\Gamma}}_{p}={\ensuremath{\int}}_{0}^{1}{g}_{1}^{p}{(x,Q}^{2})dx$ and ${\ensuremath{\Gamma}}_{d}={\ensuremath{\int}}_{0}^{1}{g}_{1}^{d}{(x,Q}^{2})dx$ were evaluated at fixed ${Q}^{2}=3(\mathrm{GeV}{/c)}^{2}$ using the full data set to yield ${\ensuremath{\Gamma}}_{p}=0.132\ifmmode\pm\else\textpm\fi{}0.003(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.009(\mathrm{syst})$ and ${\ensuremath{\Gamma}}_{d}=0.047\ifmmode\pm\else\textpm\fi{}0.003\ifmmode\pm\else\textpm\fi{}0.006.$ The ${Q}^{2}$ dependence of the ratio ${g}_{1}{/F}_{1}$ was studied and found to be small for ${Q}^{2}g1(\mathrm{GeV}{/c)}^{2}.$ Within experimental precision the ${g}_{2}$ data are well described by the twist-2 contribution, ${g}_{2}^{\mathrm{WW}}.$ Twist-3 matrix elements were extracted and compared to theoretical predictions. The asymmetry ${A}_{2}$ was measured and found to be significantly smaller than the positivity limit $\sqrt{R}$ for both proton and deuteron targets. ${A}_{2}^{p}$ is found to be positive and inconsistent with zero. Measurements of ${g}_{1}$ in the resonance region show strong variations with $x$ and ${Q}^{2},$ consistent with resonant amplitudes extracted from unpolarized data. These data allow us to study the ${Q}^{2}$ dependence of the integrals ${\ensuremath{\Gamma}}_{p}$ and ${\ensuremath{\Gamma}}_{n}$ below the scaling region.
Published: 1998

196. A test pixel vertex spectrometer to complement the NA50 dimuon spectrometer

Author: S. Mourgues, B. Espagnon, Eugenio Cantatore, P. Bordalo, C. Quintans, M. Atayan, I. Ropotar, R. Hakobyan, H.R. Gulkanyan, A. Guichard, A.M Mayevskaya, M. Campbell, M.C. Abreu, T.L. Karavitcheva, Erik H.M. Heijne, A. Baldisseri, Y.K. Gavrilov, João Cruz, A. Devaux, S. Ramos, F.F. Guber, Alexey Kurepin, A.A. Grigorian, V Danielyan, S. Mehrabyan, R. Haroutunian, S.N. Filippov, J.-Y. Grossiord, Carlos Lourenco, N.S. Topilskaya, H. Vardanyan, J.-R. Pizzi, O. Drapier, F. Staley, Laurent Ducroux, A. Baldit, J Gosset, P. Force, E. Chesi, J. Castor, P. Sonderegger, Walter Snoeys, P. Saturnini, Y Terrien, I. Chevrot, L. Casagrande, H Borel, M. Bedjidian, J. Fargeix, C. Baglin, S. Silva, Brigitte Cheynis, T. Chambon, Ruben Shahoyan, A. Bussiere, M.B. Golubeva, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), 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), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), ALICE, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), NA50, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL)
Subjects: Physics, Nuclear and High Energy Physics, Vertex (computer graphics), Muon, Pixel, Spectrometer, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Nuclear Theory, Tracking (particle physics), 01 natural sciences, Particle detector, Charged particle, Nuclear physics, 0103 physical sciences, Measuring instrument, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment, 010306 general physics, Instrumentation
Abstract: We have simulated the performance of a magnetic pixel vertex spectrometer, to be installed in the target area of the NA50 dimuon spectrometer. It performs well in tracking hundreds of charged particles emitted in head-on Pb–Pb collisions. The two muons among them are identified by matching their parameters to those of the muons identified in the NA50 spectrometer. A test setup of 66 000 pixels has been built. Results from a p–Be test run are presented.
Published: 1998

197. Writing the Lives of Writers

Author: Paul Baines, Thomas F. Staley, and Warwick Gould
Subjects: Literature, History, White (horse), biology, business.industry, Witch, Subject (philosophy), Biography, Pilgrimage, biology.organism_classification, Politics, Wright, The Right to Privacy, business
Abstract: Notes on the Contributors Preface and Acknowledgements A Matter of Life and Death M.Stannard Life over Literature or, Whatever Happened to Critical Biography? J.Haffenden The Birth of the Author L.Lipking Recreating Chaucer R.Kennedy William Tyndale: Bricks without Straw D.Daniell Writing Contexts in William Roper's Life of Thomas More M.Robson Life-Writing without Letters: Fielding and the Problem of Evidence M.C.Battestin 'Acquainted with all the Modes of Life': The Difficulty of Biography I.Grundy The White Doe of Rylstone : An Exercise in Autobiographical Displacement J.Williams The Right to Privacy/The Will to Knowledge: Henry James and the Ethics of Biographical Enquiry R.Salmon Ford, Eliot, Joyce and the Problems of Literary Biography M.Saunders 'Witch' or 'Bitch'-Which?: Yeats, Archives, and the Profession of Authorship Archive W.Gould The Biographer and Perspective J.Worthen Explaining the Abnormal: D.H. Lawrence and Tuberculosis D.Ellis 'The Past is with me, seen anew': Biography's End in Dorothy Richardson's Pilgrimage J.Winning Am I Afraid of Virginia Woolf? H.Lee Devilish Repressions: Bertrand Russell's Use of Fiction as Autobiography R.Monk Constructing the Biographical Subject: The Case of Malcolm Lowry G.Bowker Textual Biography: Writing the Lives of Books A.Atkins Vignettes: Leavis, Biography and the Body I.MacKillop Richard Wright: Intellectual Exile H.Rowley Private Scandals and Public Actions: the Politics of Reputation in the Career of Brian Penton P.Buckridge Index
Published: 1998

198. Introduction

Author: Thomas F. Staley
Subjects: History, Conservation, Library and Information Sciences
Published: 2002

199. J/ψ, φ and ρ−ψ production in p+U, O+U and S+U collisions at 200 GeV per nucleon

Author: R. Ferreira, J. Fargeix, R. Cases, G. Landaud, R. Salmeron, S. Silva, A. Guichard, Claude Charlot, T. Chambon, A. Devaux, J.M. Gago, B. Grosdidier, B. Chaurand, C. Gerschel, X. Tarrago, P. Force, Presented by D. Jouan, F. Staley, P. Gorodetzky, C. Baglin, P. Sonderegger, R. Mazi, O. Drapier, J. Y. Grossiord, A. Baldisseri, D. Jouan, A. Bussiere, L. Fredj, R. Haroutunian, M.C. Abreu, M. Bedjidian, J. P. Guillaud, A. Romana, J. Castor, R. Kossakowski, Carlos Lourenco, L. Kluberg, E. Descroix, P. Bordalo, S. Ramos, F. Vazeille, A. Baldit, Philippe Busson, D. Contardo, Joao Varela, X. Felgeyrolles, and P. Liaud
Subjects: Physics, Particle physics, Muon, Meson, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, Nuclear physics, Strange matter, Pair production, Quark–gluon plasma, High Energy Physics::Experiment, Atomic number, Nuclear Experiment, Nucleon
Abstract: The production of muon pairs has been studied in p+U, O+U, and S+U collisions at 200 GeV per nucleon, as a function or the atomic number of the projectile or of the energy density reached. Features of J/ψ, φ, and ρ−ω vector mesons production, which are respectively suppressed, enhanced, and approximately constant as compared to mass continuum events, are in agreement with predictions based on quark‐gluon plasma formation, and put severe constraints on a purely hadronic description of ultrarelativistic nucleus‐nucleus collisions.
Published: 1992

200. Study of J/$\psi$ production in p-U, O-U and S-U interactions at 200 GeV per nucleon

Author: Joao Varela, J.P. Guillaud, O. Drapier, L. Fredj, S. Papillon, B. Chaurand, S. Silva, D. Jouan, S. Ramos, A. Baldit, E. Descroix, R. Ferreira, Francois Vazeille, P. Bordalo, A. Devaux, P. Force, G. Landaud, C. Baglin, Philippe Busson, C. Gerschel, Carlos Lourenco, L. Kluberg, J.-R. Pizzi, B. Grosdidier, Ph. Gorodetzky, R. Cases, Luis Peralta, Didier Contardo, Claude Charlot, M. Pimenta, X. Felgeyrolles, T. Chambon, X. Tarrago, P. Sonderegger, F. Staley, P. Liaud, M. Alimi, J.M. Gago, J.-Y. Grossiord, A. Romana, M. Bedjidian, J. Fargeix, A. Baldisseri, A. Bussiere, C. Racca, R. Kossakowski, R.A. Salmeron, A. Guichard, J. Castor, M.C. Abreu, R. Haroutunian, Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ALICE, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), NA38, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), 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), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Plasma formation, 010308 nuclear & particles physics, Continuum (design consultancy), 7. Clean energy, 01 natural sciences, Nuclear physics, Yield (chemistry), [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], 0103 physical sciences, Energy density, Production (computer science), Nuclear Experiment, 010306 general physics, Nucleon
Abstract: In a search for quark-gluon plasma formation, the production of J/ψ and muon pairs in the mass continuum region is studied in oxygen-uranium and sulphur-uranium interactions. The yield of J/ψ relative to the continuum is measured to be a decreasing function of the neutral transverse energy produced in the collision, i.e. of the energy density. A comparison is made with proton-uranium reactions.
Published: 1991

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