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1. Probing Gluon Spin-Momentum Correlations in Transversely Polarized Protons through Midrapidity Isolated Direct Photons in p↑+p Collisions at s=200 GeV

Author: S. F. Pate, Y. L. Yamaguchi, C. Xu, D. Ivanishchev, V. Papavassiliou, Hari Guragain, C. E. Perezlara, H. Asano, A. Sexton, T. Murakami, P. Montuenga, Y. Riabov, R. Seto, N. Grau, T. W. Danley, Takafumi Niida, J. Huang, A. Franz, J. Runchey, A. Sen, Prakhar Garg, K. A. Drees, N. Feege, Kenta Shigaki, R. Cervantes, Iu. Mitrankov, L. Zou, J. Bryslawskyj, J. E. Frantz, D. Reynolds, M. Rosati, B. Mulilo, Sándor Lökös, Tamás Csörgő, K. N. Barish, A. S. Nyanin, J. Klatsky, S. Zharko, N. Cronin, A. Deshpande, Dillon Scott Fitzgerald, Kei Nagashima, M. Snowball, D. McGlinchey, R. A. Soltz, N. Ramasubramanian, H. En'yo, Alexei Khanzadeev, M. J. Leitch, V. Canoa Roman, John Hill, M. Tomášek, D. E. Fields, X. Jiang, Rachid Nouicer, Xiong Wang, A. N. Zelenski, S. P. Sorensen, B. Kurgyis, B. V. Jacak, Minghui Liu, Brajesh K. Singh, G. J. Ottino, Toru Sugitate, W. Peng, P. W. Stankus, Kensuke Homma, I. J. Choi, M. L. Brooks, L. Bichon, C. L. Woody, M. Alfred, M. Grosse Perdekamp, Kenneth Francis Read, Y. J. Kwon, J. B. Choi, X. He, A. Berdnikov, Y. H. Leung, Raphael Noel Tieulent, A. V. Kazantsev, F. Giordano, Satoshi Sato, S. Kudo, R. Corliss, N. S. Bandara, Vladimir Samsonov, Christine Nattrass, T. Hachiya, S. K. Park, M. I. Nagy, Dipak Kumar Mishra, Kenichi Imai, Petr Gallus, T. O. S. Haseler, D. A. Loomis, D. Kapukchyan, Jong-Min Park, Taku Gunji, G. D. N. Perera, Qiao Xu, David Olle Rickard Silvermyr, Y. Goto, M. Phipps, Motoi Inaba, T. Nagashima, Y. Fukuda, I. V. Sourikova, Hideki Hamagaki, W. Fan, G. David, T. Todoroki, E. J. Mannel, K. I. Hahn, J. G. Lajoie, S. Lee, Jennifer E. Perry, Xiao-yan Li, Alexander Milov, J. Hanks, Hiroyuki Sako, M. Patel, N. Apadula, A. Durum, A. Iordanova, Keiji Nagai, A. Drees, S. H. Lim, S. Y. Han, Z. Ji, D. Yu Peressounko, A. Yanovich, I. Nakagawa, Z. Rowan, Dennis Perepelitsa, M. Mendoza, S. Karthas, J. L. Nagle, C. Pinkenburg, D. Kotov, D. S. Jumper, Kyoichiro Ozawa, D. P. Morrison, A. Sukhanov, K. Kurita, S. Campbell, M. Csanad, S. P. Stoll, G. Nukazuka, Min-Hye Kim, G. Tarnai, H. Ge, K. Nakano, Z. Sun, W. E. Sondheim, Arkadiy Taranenko, S. H. Lee, I. Tserruya, M. Jezghani, D. Larionova, T. Majoros, D. Sharma, V. Singh, A. Hodges, T. Shioya, R. Esha, S. D. Rolnick, M. Slunečka, P. L. McGaughey, S. Tarafdar, V. Babintsev, N. Novitzky, R. P. Pisani, T. Koblesky, T. Moon, Senta Greene, Viktor Riabov, Serpil Yalcin, M. Sarsour, D. Jouan, Y. Corrales Morales, V. Bumazhnov, S. Nelson, Byung-Sik Hong, B. Fadem, E. O'Brien, K. L. Smith, M. Harvey, U. Acharya, M. McCumber, Anne Marie Sickles, J. Murata, Chong Kim, A. Bazilevsky, S. Bathe, M. Chiu, Dmitry Blau, B. Schaefer, C. P. Wong, P. V. Radzevich, M. Connors, T. A. Shibata, W. A. Zajc, L. Xue, Alexandre Lebedev, C. A. Ogilvie, T. K. Hemmick, E. J. Desmond, Eunja Kim, A. Denisov, J. S. Bok, G. Mitsuka, A. Pun, J. H. Kang, J. S. Haggerty, Sergey Fokin, K. DeBlasio, D. Isenhower, Tamas Novak, Balazs Ujvari, M. Giles, M. Mitrankova, I. E. Yushmanov, C. Gal, Klaus Dehmelt, Julia Velkovska, A. Khatiwada, D. Dixit, S. Mizuno, M. Beaumier, H. W. Van Hecke, B. Blankenship, Agneta Oskarsson, D. Kincses, John Matthew Durham, Y. Berdnikov, Y. Akiba, C. McKinney, Vaclav Vrba, K. Hill, Maya Hachiya Shimomura, R. S. Hollis, Y. I. Makdisi, M. M. Mondal, M. J. Tannenbaum, B. K. Schmoll, S. Esumi, Martin Purschke, C. A. Aidala, Alice Mignerey, S. Miyasaka, Shoichi Hasegawa, Takao Sakaguchi, A. D. Frawley, V. Andrieux, S. Huang, V. Khachatryan, A. Kingan, H. F. Hamilton, D. Kawall, B. Azmoun, K. Tanida, E. Kistenev, J. H. Yoo, R. Belmont, Zvi Hirsh Citron, P. Kline, A. Dion, I. Shein, J. Sun, V. R. Loggins, J. T. Mitchell, K. Sedgwick, N. Hotvedt, R. Seidl, Vladislav Manko, Mihael Makek, H. Yamamoto, C. L. Silva, A. Enokizono, Y. Watanabe, V. Pantuev, R. S. Towell, A. Timilsina, K. Lovasz, D. Lynch, M. Potekhin, T. Hoshino, D. Richford, A. S. Safonov, Yoshifumi Ueda, J. H. Do, C. L. Towell, N. Vukman, Timothy Thomas Rinn, H. Yu, T. Sumita, C. Y. Chi, M. S. Daugherity, C. P. Singh, J. D. Osborn, Inseok Yoon, R. Petti, B. M. Johnson, N. A. Lewis, M. Finger, J. Sziklai, M. Virius, J. D. Orjuela Koop, and Prashant Shukla
Subjects: Physics, Photon, Proton, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Strong interaction, General Physics and Astronomy, 7. Clean energy, 01 natural sciences, Gluon, Nuclear physics, Momentum, 0103 physical sciences, High Energy Physics::Experiment, PHENIX detector, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: Studying spin-momentum correlations in hadronic collisions offers a glimpse into a three-dimensional picture of proton structure. The transverse single-spin asymmetry for midrapidity isolated direct photons in p ↑ + p collisions at s = 200 GeV is measured with the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). Because direct photons in particular are produced from the hard scattering and do not interact via the strong force, this measurement is a clean probe of initial-state spin-momentum correlations inside the proton and is in particular sensitive to gluon interference effects within the proton. This is the first time direct photons have been used as a probe of spin-momentum correlations at RHIC. The uncertainties on the results are a 50-fold improvement with respect to those of the one prior measurement for the same observable, from the Fermilab E704 experiment. These results constrain gluon spin-momentum correlations in transversely polarized protons.
Published: 2021
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2. Probing Gluon Spin-Momentum Correlations in Transversely Polarized Protons through Midrapidity Isolated Direct Photons in p^{↑}+p Collisions at sqrt[s]=200 GeV

Author: U A, Acharya, C, Aidala, Y, Akiba, M, Alfred, V, Andrieux, N, Apadula, H, Asano, B, Azmoun, V, Babintsev, N S, Bandara, K N, Barish, S, Bathe, A, Bazilevsky, M, Beaumier, R, Belmont, A, Berdnikov, Y, Berdnikov, L, Bichon, B, Blankenship, D S, Blau, J S, Bok, M L, Brooks, J, Bryslawskyj, V, Bumazhnov, S, Campbell, V, Canoa Roman, R, Cervantes, C Y, Chi, M, Chiu, I J, Choi, J B, Choi, Z, Citron, M, Connors, R, Corliss, Y, Corrales Morales, N, Cronin, M, Csanád, T, Csörgő, T W, Danley, M S, Daugherity, G, David, K, DeBlasio, K, Dehmelt, A, Denisov, A, Deshpande, E J, Desmond, A, Dion, D, Dixit, J H, Do, A, Drees, K A, Drees, J M, Durham, A, Durum, A, Enokizono, H, En'yo, R, Esha, S, Esumi, B, Fadem, W, Fan, N, Feege, D E, Fields, M, Finger, D, Fitzgerald, S L, Fokin, J E, Frantz, A, Franz, A D, Frawley, Y, Fukuda, C, Gal, P, Gallus, P, Garg, H, Ge, M, Giles, F, Giordano, Y, Goto, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H, Guragain, T, Hachiya, J S, Haggerty, K I, Hahn, H, Hamagaki, H F, Hamilton, S Y, Han, J, Hanks, M, Harvey, S, Hasegawa, T O S, Haseler, X, He, T K, Hemmick, J C, Hill, K, Hill, A, Hodges, R S, Hollis, K, Homma, B, Hong, T, Hoshino, N, Hotvedt, J, Huang, S, Huang, K, Imai, M, Inaba, A, Iordanova, D, Isenhower, D, Ivanishchev, B V, Jacak, M, Jezghani, Z, Ji, X, Jiang, B M, Johnson, D, Jouan, D S, Jumper, J H, Kang, D, Kapukchyan, S, Karthas, D, Kawall, A V, Kazantsev, V, Khachatryan, A, Khanzadeev, A, Khatiwada, C, Kim, E-J, Kim, M, Kim, D, Kincses, A, Kingan, E, Kistenev, J, Klatsky, P, Kline, T, Koblesky, D, Kotov, S, Kudo, B, Kurgyis, K, Kurita, Y, Kwon, J G, Lajoie, D, Larionova, A, Lebedev, S, Lee, S H, Lee, M J, Leitch, Y H, Leung, N A, Lewis, X, Li, S H, Lim, M X, Liu, V-R, Loggins, S, Lökös, D A, Loomis, K, Lovasz, D, Lynch, T, Majoros, Y I, Makdisi, M, Makek, V I, Manko, E, Mannel, M, McCumber, P L, McGaughey, D, McGlinchey, C, McKinney, M, Mendoza, A C, Mignerey, A, Milov, D K, Mishra, J T, Mitchell, Iu, Mitrankov, M, Mitrankova, G, Mitsuka, S, Miyasaka, S, Mizuno, M M, Mondal, P, Montuenga, T, Moon, D P, Morrison, B, Mulilo, T, Murakami, J, Murata, K, Nagai, K, Nagashima, T, Nagashima, J L, Nagle, M I, Nagy, I, Nakagawa, K, Nakano, C, Nattrass, S, Nelson, T, Niida, R, Nouicer, T, Novák, N, Novitzky, G, Nukazuka, A S, Nyanin, E, O'Brien, C A, Ogilvie, J D, Orjuela Koop, J D, Osborn, A, Oskarsson, G J, Ottino, K, Ozawa, V, Pantuev, V, Papavassiliou, J S, Park, S, Park, S F, Pate, M, Patel, W, Peng, D V, Perepelitsa, G D N, Perera, D Yu, Peressounko, C E, PerezLara, J, Perry, R, Petti, M, Phipps, C, Pinkenburg, R P, Pisani, M, Potekhin, A, Pun, M L, Purschke, P V, Radzevich, N, Ramasubramanian, K F, Read, D, Reynolds, V, Riabov, Y, Riabov, D, Richford, T, Rinn, S D, Rolnick, M, Rosati, Z, Rowan, J, Runchey, A S, Safonov, T, Sakaguchi, H, Sako, V, Samsonov, M, Sarsour, S, Sato, B, Schaefer, B K, Schmoll, K, Sedgwick, R, Seidl, A, Sen, R, Seto, A, Sexton, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, T, Shioya, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, B K, Singh, C P, Singh, V, Singh, M, Slunečka, K L, Smith, M, Snowball, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, P W, Stankus, S P, Stoll, T, Sugitate, A, Sukhanov, T, Sumita, J, Sun, Z, Sun, J, Sziklai, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, G, Tarnai, R, Tieulent, A, Timilsina, T, Todoroki, M, Tomášek, C L, Towell, R S, Towell, I, Tserruya, Y, Ueda, B, Ujvari, H W, van Hecke, J, Velkovska, M, Virius, V, Vrba, N, Vukman, X R, Wang, Y S, Watanabe, C P, Wong, C L, Woody, C, Xu, Q, Xu, L, Xue, S, Yalcin, Y L, Yamaguchi, H, Yamamoto, A, Yanovich, J H, Yoo, I, Yoon, H, Yu, I E, Yushmanov, W A, Zajc, A, Zelenski, S, Zharko, and L, Zou
Abstract: Studying spin-momentum correlations in hadronic collisions offers a glimpse into a three-dimensional picture of proton structure. The transverse single-spin asymmetry for midrapidity isolated direct photons in p^{↑}+p collisions at sqrt[s]=200 GeV is measured with the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). Because direct photons in particular are produced from the hard scattering and do not interact via the strong force, this measurement is a clean probe of initial-state spin-momentum correlations inside the proton and is in particular sensitive to gluon interference effects within the proton. This is the first time direct photons have been used as a probe of spin-momentum correlations at RHIC. The uncertainties on the results are a 50-fold improvement with respect to those of the one prior measurement for the same observable, from the Fermilab E704 experiment. These results constrain gluon spin-momentum correlations in transversely polarized protons.
Published: 2021

3. Extending the Southern Shore of the Island of Inversion to F28

Author: J. Mayer, Noritsugu Nakatsuka, Michael Thoennessen, A. Gillibert, Ákos Horváth, Q. Deshayes, Yosuke Kondo, J. Tscheuschner, Nasser Kalantar-Nayestanaki, J. M. Gheller, István Kuti, M. Shikata, Thomas Aumann, C. Caesar, J. Tsubota, A. Revel, N. L. Achouri, W. He, Z. Elekes, Calem Hoffman, Shoichiro Kawase, Heiko Scheit, J. Kahlbow, Masahiro Yasuda, H. Simon, H. Sato, K. Yoneda, A. Horvat, K. Nakano, Igor Gašparić, T. Ozaki, H. Chae, J. A. Tostevin, L. Stuhl, K. Miki, F. de Oliveira Santos, H. L. Crawford, D. Calvet, Stefanos Paschalis, S. Masuoka, T. Isobe, A. Obertelli, Tomoki Saito, Momoko Tanaka, N. A. Orr, Shoko Koyama, Nobuyuki Chiga, L. Atar, Y. Satou, P. Fallon, Atsumi Saito, Zsolt Dombrádi, H. Törnqvist, Jongwon Hwang, A. Corsi, Julien Gibelin, K. Boretzky, A. Delbart, D. M. Rossi, H. Baba, Masaki Sasano, D. Sohler, V. Lapoux, M. A. Najafi, S. K. Kim, A. Hirayama, H. Al Falou, K. Kisamori, T. Tomai, V. Panin, P. Schrock, Takashi Nakamura, Yasuhiro Togano, M.N. Harakeh, M. Holl, Zaihong Yang, F. Nowacki, T. Kobayashi, Cenxi Yuan, D. Körper, Tomohiro Uesaka, Thomas Nilsson, C. A. Douma, Simon Lindberg, Hideaki Otsu, O. Sorlin, T. Murakami, Yohei Shimizu, Fabia Schindler, Franck Delaunay, F. M. Marqués, and Satoshi Takeuchi
Subjects: Physics, Proton, Island of inversion, General Physics and Astronomy, 01 natural sciences, Spectral line, Momentum, 0103 physical sciences, Neutron, Atomic physics, 010306 general physics, Nucleon, Spectroscopy, Ground state
Abstract: Detailed spectroscopy of the neutron-unbound nucleus 28 F has been performed for the first time following proton/neutron removal from 29 Ne / 29 F beams at energies around 230 MeV / nucleon . The invariant-mass spectra were reconstructed for both the 27 F ( * ) + n and 26 F ( * ) + 2 n coincidences and revealed a series of well-defined resonances. A near-threshold state was observed in both reactions and is identified as the 28 F ground state, with S n ( 28 F ) = − 199 ( 6 ) keV , while analysis of the 2 n decay channel allowed a considerably improved S n ( 27 F ) = 1620 ( 60 ) keV to be deduced. Comparison with shell-model predictions and eikonal-model reaction calculations have allowed spin-parity assignments to be proposed for some of the lower-lying levels of 28 F . Importantly, in the case of the ground state, the reconstructed 27 F + n momentum distribution following neutron removal from 29 F indicates that it arises mainly from the 1 p 3 / 2 neutron intruder configuration. This demonstrates that the island of inversion around N = 20 includes 28 F , and most probably 29 F , and suggests that 28 O is not doubly magic.
Published: 2020
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4. Nuclear Dependence of the Transverse Single-Spin Asymmetry in the Production of Charged Hadrons at Forward Rapidity in Polarized p+p , p+Al , and p+Au Collisions at sNN=200 GeV

Author: T. Murakami, Y. H. Leung, S. I. Morrow, Y. J. Kwon, A. Franz, J. Runchey, Maya Hachiya Shimomura, R. S. Hollis, Y. I. Makdisi, Hari Guragain, Dmitry Blau, N. Cronin, Y. Zhai, G. Tarnai, S. P. Sorensen, M. Sarsour, A. Iordanova, E. J. Desmond, M. J. Tannenbaum, H. Asano, B. Azmoun, A. Sen, B. K. Schmoll, Jong-Min Park, Taku Gunji, Martin Purschke, M. Patel, C. A. Aidala, Z. Sun, S. Y. Han, M. J. Skoby, P. Kline, A. Dion, M. Tomášek, V. Andrieux, Viktor Riabov, V. Khachatryan, M. Snowball, Balazs Ujvari, K. A. Drees, Alexander Milov, J. G. Lajoie, I. J. Choi, M. Beaumier, Serpil Yalcin, I. E. Yushmanov, R. Belmont, V. Bumazhnov, Michael William Phipps, S. Lee, W. Peng, P. W. Stankus, I. Nakagawa, R. Seidl, Jennifer E. Perry, Alexei Khanzadeev, G. D. N. Perera, S. Tarafdar, Byung-Sik Hong, Chong Kim, A. Bazilevsky, S. Esumi, C. P. Wong, J. B. Choi, S. D. Rolnick, Alice Mignerey, N. Novitzky, V. R. Loggins, J. T. Mitchell, M. Connors, W. A. Zajc, S. Miyasaka, L. Zou, Alexandre Lebedev, L. Xue, N. Feege, Dipak Kumar Mishra, J. Klatsky, A. Denisov, R. P. Pisani, H. En'yo, M. J. Leitch, E. A. Gamez, A. Durum, D. P. Morrison, M. McCumber, S. Nelson, Sergey Fokin, B. M. Johnson, Takafumi Niida, J. Huang, Takao Sakaguchi, A. Enokizono, N. Hotvedt, N. S. Bandara, Vladimir Samsonov, Christine Nattrass, Minghui Liu, S. Ishimaru, A. D. Frawley, Kei Nagashima, V. Canoa Roman, A. Taranenko, Kenichi Imai, T. O. S. Haseler, Vladislav Manko, S. Huang, Raphael Noel Tieulent, Prakhar Garg, Kenneth Francis Read, I. Tserruya, M. Jezghani, E. Kistenev, A. Pun, Susumu Sato, Prashant Shukla, T. Hoshino, Wesley James Metzger, M. Slunečka, V. Singh, A. Hodges, S. F. Pate, E. J. Mannel, H. F. Hamilton, A. V. Kazantsev, Hideki Hamagaki, W. Fan, T. Todoroki, T. Rinn, V. Babintsev, S. Hasegawa, J. L. Nagle, Brajesh K. Singh, G. J. Ottino, D. Richford, A. S. Safonov, T. A. Shibata, D. V. Perepelitsa, J. Sun, K. I. Hahn, T. Koblesky, D. E. Fields, X. Jiang, Min-Hye Kim, X. He, Yoshifumi Ueda, J. H. Do, B. V. Jacak, Y. Fukuda, C. Pinkenburg, Motoi Inaba, D. Isenhower, T. Moon, G. David, C. L. Towell, N. Vukman, K. Dehmelt, D. Ivanishchev, P. Montuenga, A. Sukhanov, K. Kurita, V. Papavassiliou, Kyoichiro Ozawa, Z. Wang, Xiao-yan Li, J. Hanks, C. E. Perezlara, D. McGlinchey, S. H. Lee, Hiroyuki Sako, M. I. Nagy, C. Y. Scarlett, N. Grau, J. H. Kang, P. V. Radzevich, J. S. Haggerty, Iu. Mitrankov, D. Kawall, R. S. Towell, P. L. McGaughey, Eunja Kim, D. Kapukchyan, N. Apadula, K. L. Smith, A. Drees, A. Timilsina, J. E. Frantz, S. Suzuki, M. Virius, Qiao Xu, D. Reynolds, C. L. Silva, J. D. Orjuela Koop, Xiong Wang, S. Park, J. Murata, Zvi Hirsh Citron, Kensuke Homma, M. Alfred, G. Mitsuka, T. Novák, S. H. Lim, S. Bathe, I. Shein, M. Chiu, Sándor Lökös, A. Yanovich, K. N. Barish, C. A. Ogilvie, H. Yu, K. Tanida, T. K. Hemmick, D. Lynch, K. Sedgwick, K. Lovasz, T. Sumita, S. Zharko, C. Y. Chi, D. Dixit, Mihael Makek, A. Deshpande, H. Yamamoto, Yasutada Akiba, C. Gal, K. DeBlasio, Julia Velkovska, John Hill, T. Hachiya, J. D. Osborn, Inseok Yoon, M. Rosati, B. Kurgyis, S. Karthas, Toru Sugitate, D. Kotov, M. Finger, Tamás Csörgő, Y. Watanabe, D. S. Jumper, S. Kudo, M. S. Daugherity, C. P. Singh, V. Pantuev, S. Mizuno, M. Csanad, S. P. Stoll, R. Petti, Y. Goto, N. A. Lewis, Z. Rowan, M. Mendoza, H. W. Van Hecke, J. Sziklai, M. L. Brooks, D. Jouan, H. Ge, S. Campbell, K. Nakano, W. E. Sondheim, Agneta Oskarsson, D. Kincses, John Matthew Durham, Y. Berdnikov, C. McKinney, Y. L. Yamaguchi, Vaclav Vrba, K. Hill, C. Xu, A. Sexton, R. Seto, T. W. Danley, R. A. Soltz, M. Grosse Perdekamp, F. Giordano, David Olle Rickard Silvermyr, Z. Ji, D. Yu Peressounko, Senta Greene, B. Fadem, E. O'Brien, Y. Riabov, J. Bryslawskyj, Kenta Shigaki, R. Cervantes, A. S. Nyanin, Rachid Nouicer, A. N. Zelenski, C. L. Woody, A. Berdnikov, Petr Gallus, T. Nagashima, I. V. Sourikova, Keiji Nagai, J. H. Yoo, T. Shioya, T. Majoros, D. Sharma, Anne Marie Sickles, B. Schaefer, J. S. Bok, and R. Nishitani
Subjects: Physics, media_common.quotation_subject, Nuclear Theory, Hadron, General Physics and Astronomy, 01 natural sciences, Asymmetry, Nuclear physics, Momentum, Transverse plane, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Spin (physics), media_common
Abstract: We report on the nuclear dependence of transverse single-spin asymmetries (TSSAs) in the production of positively charged hadrons in polarized p↑+p, p↑+Al, and p↑+Au collisions at sNN=200 GeV. The measurements have been performed at forward rapidity (1.4<η<2.4) over the range of transverse momentum (1.8
Published: 2019
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5. Beam Energy and Centrality Dependence of Direct-Photon Emission from Ultrarelativistic Heavy-Ion Collisions

Author: A. Sen, V. S. Pantuev, M. Sano, M. Stepanov, Emily D. Richardson, X. He, J. Zimamyi, O. O. Omiwade, M. Harvey, S. Belikov, K. S. Joo, A. Rakotozafindrabe, J. Hamblen, K. Hasuko, Y. Aramaki, V. Peresedov, Y. Watanabe, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, R. A. Soltz, T. Sato, C. M. Camacho, R. S. Towell, Prashant Shukla, S. F. Pate, Dmitry Blau, Y. Fukao, A. Shevel, O. Jinnouchi, H. En'yo, J. Koster, M. Grosse Perdekamp, A. Hadj Henni, T. Hester, I. Younus, Ke. Nakamura, O. Drapier, H. Al-Bataineh, E. Vazquez-Zambrano, A. Nederlof, J. Park, H. Masui, A. K. Dubey, F. Matathias, H. Asano, Florian Bauer, M. Kasai, Y. Iwanaga, Joakim Nystrand, A. Vossen, T. L. Thomas, I. E. Yushmanov, Eun-Hee Kim, P. Constantin, Beomkyu Kim, Wei Xie, M. J. Leitch, A. A. Bickley, C. L. Woody, A. Veicht, A. Mwai, Eva Haslum, B. Lenzi, A. Soldatov, D. Isenhower, A. Toia, Tamas Novak, T. Moon, Kensuke Homma, H. Pei, L. Guo, Alexei Khanzadeev, Shinichi Masumoto, E. Stenlund, J. B. Choi, H. Sakata, Min-Hye Kim, R. Vértesi, S. H. Lee, Dipak Kumar Mishra, C. Baumann, M. S. Daugherity, C. P. Singh, T. Jones, Z. Rowan, Tomoya Tsuji, J. H. Bhom, T. V. Moukhanova, M. Mendoza, Peter Christiansen, R. Ichimiya, Atsushi Takahara, L. Mašek, D. Kawall, K. Tanida, Ryugo S. Hayano, I. J. Choi, B. Xia, S. Motschwiller, D. Ivanishchev, Dennis Perepelitsa, H. Themann, S. Chernichenko, V. Papavassiliou, Z. Ji, D. Winter, D. Yu Peressounko, Y. Riabov, Y. Onuki, C. E. Perezlara, Filip Krizek, N. A. Lewis, K. A. Drees, H. Lim, B. Bassalleck, S. Takagi, J. Bryslawskyj, Kenta Shigaki, M. Boer, M. Nguyen, V. I. Kochetkov, L. Aphecetche, S. Park, J. Murata, I. Nakagawa, Aaron Angerami, V-N. Tram, N. Grau, R. J. Petti, Sándor Lökös, K. N. Barish, J. M. Burward-Hoy, P. Tarján, S. N. White, J. G. Lajoie, Deepa Thomas, Jan Rak, R. Lacey, A. V. Kazantsev, Alexander Milov, Tae-Yeon Lee, Martin Purschke, C. A. Aidala, H. J. Kim, R. Granier de Cassagnac, A. Isupov, C. Suire, A. S. Nyanin, S. Zharko, S. Sano, S. Butsyk, Vladimir Samsonov, M. Konno, Gerd Joachim Kunde, A. Dion, Johannes Peter Wessels, I. Ravinovich, J. L. Charvet, S. Afanasiev, A. Ster, N. Feege, I. Otterlund, Christine Nattrass, A. Adare, J. Klatsky, C. P. Wong, M. Connors, W. A. Zajc, V. Baublis, A. Denisov, M. Leitgab, J. Sziklai, I. Shein, V. Cianciolo, Zvi Hirsh Citron, H. Ge, Rachid Nouicer, A. N. Zelenski, M. Proissl, Young-Ki Kim, T. Engelmore, Y. Tomita, Motoi Inaba, K. Nakano, M. J. Skoby, J. Newby, G. Roche, M. Mitrovski, Takafumi Niida, J. Huang, Hiroaki Ohnishi, K. B. Lee, Brian Cole, L. Tomášek, R. M. Wright, T. E. Miller, M. Kurosawa, Sergey Fokin, Z. Sun, A. Yu. Semenov, Bum-Hoon Lee, D. E. Mihalik, Senta Greene, K. Sedgwick, M. L. Brooks, S. Yokkaichi, W. C. Smith, B. M. Johnson, Alberto Baldisseri, Mihael Makek, K. Das, J. T. Mitchell, P. Mikeš, N. Hotvedt, R. Seidl, M. K. Dayananda, Prakhar Garg, B. Bannier, R. Belmont, M. Sarsour, A. T. Basye, M. K. Lee, B. Love, Marie Germain, C. Xu, E. P. Hartouni, Y. Miyachi, K. B. Kim, W. E. Sondheim, K. Boyle, P. A. Rukoyatkin, K. S. Sim, Kei Nagashima, V. Canoa Roman, P. Chung, M. I. Nagy, A. Morreale, Z. Fraenkel, Y. Nagata, M. Bai, D. Watanabe, M. D. Malik, Vladislav Manko, Saskia Mioduszewski, H. A. Gustafsson, M. Slunečka, E. Vznuzdaev, E. C. Aschenauer, S. S. Ryu, J. S. Kang, Junji Tojo, J. Gosset, Mate Csanad, A. Berdnikov, C. Zhang, J. P. Sullivan, A. Iordanova, A. Caringi, Frank Ellinghaus, E. R. Kinney, D. P. Morrison, B. H. Kang, M. Naglis, Tomofumi Nagae, J. L. Nagle, S. Y. Fung, M. B. Deaton, Y. Tanaka, T. K. Shea, P. Rosnet, B. Meredith, V. Khachatryan, D. Hornback, B. Komkov, P. Castera, J. Imrek, V. E. Semenov, B. E. Norman, M. Holmes, P. Ružička, Raphael Noel Tieulent, W. S. Emam, A. Datta, M. Javani, B. Fadem, E. O'Brien, Y. Kwon, A. G. Litvinenko, A. Kozlov, R. Seto, A. Bagoly, Maya Hachiya Shimomura, R. S. Hollis, G. David, L. Patel, T. C. Awes, Kyoichiro Ozawa, T. Liška, K. O. Eyser, K. Fujiwara, Y. L. Yamaguchi, N. Kamihara, R. K. Choudhury, T. Murakami, Robert F. Hobbs, B. Lewis, Viktor Riabov, Jun Kikuchi, Tadaaki Isobe, B. Azmoun, Y. J. Mao, K. Haruna, T. W. Danley, J. D. Osborn, A. Taranenko, R. Yang, H. Hiejima, S. Taneja, Kazushi Miki, H. Al-Ta'Ani, A. Král, M. J. Kweon, H. Kanou, J. S. Chai, Petr Gallus, T. Majoros, L. Ding, D. Roach, K. M. Kijima, Taku Gunji, H. Gong, M. Nihashi, Tatsuya Chujo, D. Richford, Zhiying You, K. Imai, Shoji Nagamiya, John Hill, K. Hashimoto, T. Horaguchi, Brajesh K. Singh, C. Silvestre, R. Bennett, M. Kawashima, J. Seele, Yoshifumi Ueda, H. J. Moon, Norio Saito, Tsutomu Mibe, P. Liebing, M. A. L. Leite, D. Sharma, C. Vale, P. L. McGaughey, K. Karatsu, M. Patel, F. Kajihara, F. Staley, L. Baksay, V. Dzhordzhadze, I. Danchev, A. Garishvili, David D'Enterria, Gary Grim, J. H. Do, T. Tabaru, S. Batsouli, B. Kurgyis, Toru Sugitate, L. D. Isenhower, K. V. Dharmawardane, Susumu Sato, Y. I. Makdisi, M. Kaneta, Xingguo Li, B. S. Chang, Y. Le Bornec, Ahmed Al-Jamel, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Charles Maguire, J. L. Drachenberg, S. Leckey, M. Finger, S. Tarafdar, G. Mitsuka, Y. Hori, Anne Marie Sickles, J. Jin, J. E. Frantz, Jen-Chieh Peng, K. Gainey, I. V. Sourikova, N. Novitzky, Jongmin Lee, S. Choi, J. Klay, S. I. Morrow, H. Delagrange, Y. S. Kim, Y. H. Leung, Josh Moss, E. M. Takagui, S. P. Sorensen, Dylan Walker, R. P. Pisani, Debashish Pal, Y. Nakamiya, D. Lynch, S. Sawada, J. S. Bok, D. Kotchetkov, D. Reynolds, François Fleuret, H. W. Van Hecke, Y. Tsuchimoto, T. Ichihara, M. Oka, O. Chvala, H. Iinuma, M. C. McCain, S. Hasegawa, R. Tanabe, D. Layton, I. Garishvili, Akio Kiyomichi, J. Ying, Seong H. Kim, F. Wei, Inkyu Park, M. McCumber, J. Runchey, E. Kistenev, Xiong Wang, Z. Conesa del Valle, S. Zhou, Matthew G. Reuter, Herve Borel, B. Ujvari, Nikolay Tyurin, M. N. Wagner, Susanta K. Mohapatra, J. S. Kapustinsky, Takahiro Fusayasu, G. R. Young, M. Alfred, T. Hachiya, G. Baksay, Dong Jo Kim, A. P.T. Palounek, K. Okada, P. Lichtenwalner, A. Kiss, P. Kline, K. S. Lee, S. D. Rolnick, A. Enokizono, B. Espagnon, L. Zou, H. Harada, I. D. Ojha, Alexander Malakhov, Qiao Xu, N. Kurihara, ShinIchi Esumi, A. Glenn, A. Kravitz, J. M. Heuser, W. C. Chang, Z. Yasin, Henner Buesching, J. Sun, B. Forestier, M. T. Bjorndal, D. Silvermyr, S. Baumgart, L. S. Zolin, M. Ouchida, V. Babintsev, W. J. Park, Steve Edwards, M. Tomášek, N. Means, J. Asai, Atsushi Taketani, M. Wysocki, I. Tserruya, Masamichi Ishihara, A. Sukhanov, K. Kurita, Rushan Han, M. N. Hagiwara, Christopher Rosen, S. H. Lim, H. Pereira, P. D. Barnes, H. Yu, X. Gong, Y. Morino, Yu. Efremenko, A. Yanovich, V. Singh, V. L. Rykov, T. Dahms, A. Hodges, Marcus Hohlmann, G. S. Kyle, C. O. Kim, R. Pak, N. Willis, C. Y. Chi, M. J. Tannenbaum, James Alexander, Y. Ikeda, Shingo Sakai, S. P. Stoll, L. A. Linden Levy, J. G. Boissevain, Yasutada Akiba, H. Torii, P. V. Radzevich, Hirohiko Sato, S. K. Tuli, Minghui Liu, S. Bathe, Eunja Kim, E. J. Mannel, Agneta Oskarsson, S. Dairaku, D. Kincses, T. Rinn, Y. Berdnikov, R. Averbeck, Byung-Sik Hong, C. McKinney, M. Mishra, Kazuhiro Tanaka, Vaclav Vrba, Klaus Johannes Reygers, K. Hill, O. Zaudtke, Rui Wei, R. Akimoto, B. Sahlmueller, E. J. Desmond, A. Bazilevsky, Y. J. Kim, B. K. Schmoll, M. Virius, E. T. Atomssa, M. Heffner, A. Kim, Jaehyeok Yoo, D. Mukhopadhyay, E. Tennant, S. Rembeczki, M. Gonin, C. Pinkenburg, K. Dehmelt, J. D. Orjuela Koop, S. Kametani, C. H. Chen, Kenneth Francis Read, A. Manion, Y. Cobigo, Alexandre Lebedev, J. H. Kang, D. M. Lee, D. Bucher, J. S. Haggerty, S. R. Lee, A. Romana, S. Gadrat, Y. S. Lai, K. Kiriluk, J. Chiba, Alice Mignerey, X. Jiang, L. D'Orazio, S. Miyasaka, A. Franz, G. C. Mishra, Xiao-yan Li, Hiroyuki Sako, Y. Komatsu, Takao Sakaguchi, S. W. Nam, C. Klein-Boesing, A. D. Frawley, S. Huang, S. H. Aronson, W. Holzmann, O. Dietzsch, H. Valle, M. Chiu, Dipanwita Dutta, C. A. Ogilvie, Sung Keun Park, C. Gal, Julia Velkovska, S. Kelly, M. Rosati, N. N. Ajitanand, T. K. Hemmick, J. M. Durham, Yasuo Miake, Tamás Csörgő, Takahiro Nakamura, D. McGlinchey, Susumu Oda, A. A. Vinogradov, Henrik Tydesjö, L. Kochenda, M. Issah, T. Shohjoh, A. Durum, T. Kawagishi, Jiangyong Jia, D. S. Brown, K. Yamaura, S. Wolin, D. Kleinjan, S. Campbell, Hongfang Liu, D. E. Fields, B. V. Jacak, A. K. Purwar, R. Armendariz, J. Hanks, Byoungchoo Park, N. Apadula, C. Oakley, A. Drees, J. Kubart, K. Sakashita, D. Kotov, J. Egdemir, D. S. Jumper, F. Gastineau, Jason Kamin, Y. Goto, S. S.E. Rosendahl, K. Watanabe, G. Bunce, K. Shoji, A. Churyn, D. Jouan, W. Peng, P. W. Stankus, C. R. Cleven, C. Haegemann, Y. Inoue, P. J. Kroon, T. Kempel, Dong-Hun Kim, S. Kaneti, M. G. Hur, Steven E. Skutnik, M. Togawa, T. O. S. Haseler, H. Qu, Hideki Hamagaki, W. Fan, K. Aoki, M. Vargyas, T. Todoroki, K. I. Hahn, A. Deshpande, Helsinki Institute of Physics, Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), 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), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), 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 de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-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), PHENIX, Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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)-Université Clermont Auvergne (UCA), 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), Laboratoire de physique subatomique et des technologies associées ( SUBATECH ), IMT Atlantique Bretagne-Pays de la Loire ( IMT Atlantique ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Nantes ( UN ), 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 ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), 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 de Physique de Clermont ( LPC ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Clermont Auvergne ( UCA ) -Centre National de la Recherche Scientifique ( CNRS ), Institut de Physique Nucléaire de Lyon ( IPNL ), Université Claude Bernard Lyon 1 ( UCBL ), 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 )
Subjects: Photon, heavy ion: scattering, 62.4 GeV-cms, Au+Au collisions, General Physics and Astronomy, transverse momentum dependence, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 39 GeV-cms/nucleon62.4 GeV-cms, [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment, 39 GeV-cms/nucleon, Physics, Range (particle radiation), RHIC, Large Hadron Collider, Multiplicative function, PHENIX, nucleus nucleus: colliding beams, PRIRODNE ZNANOSTI. Fizika, photon: direct production, CERN LHC Coll, photon: yield, COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS, quark-gluon plasma, beam energy scan, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 114 Physical sciences, energy dependence, Nuclear physics, direct photons, energy: scaling, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], DILEPTONS, Au+Au collisions, beam energy scan, quark-gluon plasma, direct photons, PHENIX, RHIC, 0103 physical sciences, 010306 general physics, impact parameter: dependence, Scaling, Nuclear Physics, gold, NATURAL SCIENCES. Physics, Yield (chemistry), High Energy Physics::Experiment, Relativistic Heavy Ion Collider, Beam (structure), experimental results
Abstract: The PHENIX collaboration presents first measurements of low-momentum ($0.4$1\,GeV/$c$) direct-photon yield $dN_{\gamma}^{\rm dir}/d\eta$ is a smooth function of $dN_{\rm ch}/d\eta$ and can be well described as proportional to $(dN_{\rm ch}/d\eta)^\alpha$ with $\alpha{\approx}1.25$. This scaling behavior holds for a wide range of beam energies at the Relativistic Heavy Ion Collider and the Large Hadron Collider, for centrality selected samples, as well as for different, $A$$+$$A$ collision systems. At a given beam energy the scaling also holds for high $p_T$ ($>5$\,GeV/$c$) but when results from different collision energies are compared, an additional $\sqrt{s_{_{NN}}}$-dependent multiplicative factor is needed to describe the integrated-direct-photon yield., Comment: 673 authors from 82 institutions, 10 pages, 4 figures. v2 is version accepted for publication in Physical Review Letters. 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: 2019
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6. Pseudorapidity Dependence of Particle Production and Elliptic Flow in Asymmetric Nuclear Collisions of p+Al , p+Au , d+Au , and He3+Au at sNN=200 GeV

Author: N. S. Bandara, C. H. Chen, G. Tarnai, Vladimir Samsonov, Y. Riabov, Kenichi Imai, Z. Sun, Christine Nattrass, R. Lacey, T. O. S. Haseler, S. Bathe, S. Hasegawa, Kenta Shigaki, R. Cervantes, M. Chiu, M. I. Nagy, I. Tserruya, P. B. Diss, M. Jezghani, V. Singh, A. Hodges, A. Adare, S. Tarafdar, R. Nishitani, P. L. McGaughey, M. Phipps, C. A. Ogilvie, A. S. Nyanin, X. He, R. A. Soltz, D. Kapukchyan, Rachid Nouicer, A. N. Zelenski, T. Koblesky, T. K. Hemmick, Maya Hachiya Shimomura, R. S. Hollis, F. Wei, D. E. Mihalik, S. Beckman, B. J. Ramson, Hideki Hamagaki, W. Fan, Serpil Yalcin, G. David, T. Todoroki, M. Grosse Perdekamp, E. O. Lallow, Shunji Nishimura, K. A. Drees, F. Giordano, J. Rak, K. I. Hahn, J. Klatsky, J. L. Nagle, A. Glenn, P. V. Radzevich, Y. I. Makdisi, Ajit Kumar Mohanty, T. A. Shibata, D. Sharma, K. DeBlasio, Eunja Kim, A. V. Kazantsev, T. Hachiya, S. K. Park, R. S. Towell, Y. J. Kwon, Prashant Shukla, C. L. Woody, S. F. Pate, A. Pun, B. Kimelman, R. Pinson, S. Vazquez-Carson, Z. Rowan, Anne Marie Sickles, M. Mendoza, A. Berdnikov, K. L. Smith, B. Schaefer, K. Hashimoto, C. P. Wong, L. D. Liu, A. Mwai, J. H. Kang, M. Boer, M. J. Tannenbaum, J. S. Haggerty, Xingguo Li, P. Montuenga, N. N. Ajitanand, C. L. Silva, David Olle Rickard Silvermyr, B. K. Schmoll, N. Grau, Z. Ji, Alexander Milov, I. Nakagawa, N. Novitzky, D. P. Morrison, J. A. Key, D. Isenhower, Tamas Novak, T. Moon, Jaehyeok Yoo, M. Connors, W. A. Zajc, L. Xue, S. Syed, J. S. Bok, D. Yu Peressounko, Sándor Lökös, K. N. Barish, S. Zharko, Petr Gallus, T. Nagashima, A. Denisov, Yuki Watanabe, G. D. N. Perera, N. Apadula, Y. Fukuda, V. Bumazhnov, D. Dixit, N. Feege, A. Drees, Sergey Fokin, Koji Sato, Iu. Mitrankov, Jong-Min Park, Taku Gunji, Moonhee Kim, Dennis Perepelitsa, M. Patel, Kyoichiro Ozawa, L. Zou, D. Ivanishchev, I. V. Sourikova, Keiji Nagai, V. Papavassiliou, M. L. Brooks, Alice Mignerey, H. Ge, C. E. Perezlara, Mikhail Malaev, T. Murakami, E. J. Mannel, T. Rinn, K. Nakano, Motoi Inaba, N. Saito, S. Miyasaka, A. Durum, Minghui Liu, B. Kurgyis, C. Gal, S. Zhou, S. Karthas, A. Takeda, Julia Velkovska, Takao Sakaguchi, A. Sen, C. Pinkenburg, S. D. Rolnick, K. Dehmelt, J. Bryslawskyj, Kenneth Francis Read, M. Sarsour, A. Iordanova, S. Y. Han, D. Kotov, M. Rosati, Agneta Oskarsson, W. E. Sondheim, D. Kincses, John Matthew Durham, A. D. Frawley, S. I. Morrow, M. Tomášek, T. Majoros, Senta Greene, S. Kanda, W. Peng, M. Virius, Tamás Csörgő, D. S. Jumper, Y. Berdnikov, A. S. White, S. Huang, C. Ayuso, A. Franz, J. Runchey, C. Butler, D. J. Kim, P. W. Stankus, A. Meles, M. Csanad, S. P. Stoll, C. McKinney, S. Kudo, Wesley James Metzger, A. Deshpande, C. Xu, E. Kistenev, T. Shioya, M. Snowball, A. Sukhanov, H. F. Hamilton, Kei Nagashima, K. Kurita, K. Aoki, P. Sett, B. Fadem, E. O'Brien, R. P. Pisani, V. Canoa Roman, M. McCumber, I. J. Choi, G. W. Kim, Vaclav Vrba, K. Hill, D. McGlinchey, H. En'yo, M. J. Leitch, Brajesh K. Singh, G. J. Ottino, D. E. Fields, B. Xia, B. V. Jacak, J. Imrek, A. Sexton, Raphael Noel Tieulent, R. Pak, Takafumi Niida, Susumu Sato, J. Huang, H. Asano, R. Kitamura, Y. Goto, J. Sun, S. P. Sorensen, R. Seto, T. W. Danley, D. Jouan, Y. L. Yamaguchi, J. Jia, M. Stepanov, Prakhar Garg, B. Bannier, Hari Guragain, D. Kleinjan, S. Campbell, J. G. Lajoie, J. D. Orjuela Koop, M. Alfred, S. Lee, Jennifer E. Perry, S. Mizuno, H. W. Van Hecke, Viktor Riabov, Martin Purschke, C. A. Aidala, John Hill, M. J. Skoby, Y. Ito, Pawan Kumar Netrakanti, V. Andrieux, Radek Novotny, V. Khachatryan, N. Cronin, A. Manion, Y. H. Leung, B. Azmoun, I. Ravinovich, Toru Sugitate, P. Kline, A. Dion, M. Beaumier, M. Bai, S. Esumi, Z. Wang, M. S. Daugherity, C. P. Singh, R. Petti, B. M. Johnson, N. A. Lewis, V. Jorjadze, T. Elder, Qiao Xu, J. Sziklai, D. Kawall, J. D. Osborn, S. H. Lim, K. Tanida, Inseok Yoon, A. Yanovich, Zvi Hirsh Citron, M. Finger, I. Shein, A. Taranenko, K. Sedgwick, Mihael Makek, H. Yamamoto, H. Yu, Animesh Datta, T. Sumita, C. Y. Chi, Yasutada Akiba, A. Enokizono, H. Masuda, Kensuke Homma, M. Kurosawa, D. Lynch, A. Taketani, Y. Watanabe, V. Pantuev, R. Belmont, B. Sahlmueller, K. Boyle, V. R. Loggins, J. T. Mitchell, N. Hotvedt, R. Seidl, Vladislav Manko, M. Slunečka, P. Yin, A. Timilsina, K. Lovasz, H. Nakagomi, T. Hoshino, D. Richford, A. S. Safonov, Yoshifumi Ueda, J. H. Do, C. L. Towell, N. Vukman, Dmitry Blau, Tatsuya Chujo, Jen-Chieh Peng, E. J. Desmond, J. G. Rubin, J. E. Frantz, D. Reynolds, Xiong Wang, Balazs Ujvari, M. Wysocki, I. E. Yushmanov, Alexei Khanzadeev, J. B. Choi, Dipak Kumar Mishra, T. V. Moukhanova, Min-Hye Kim, S. H. Lee, J. Murata, S. Suzuki, Mirta Dumancic, B. Komkov, V. Babintsev, Byung-Sik Hong, Chong Kim, A. Bazilevsky, Alexandre Lebedev, G. Mitsuka, X. Jiang, J. Hanks, and Hiroyuki Sako
Subjects: Physics, 010308 nuclear & particles physics, media_common.quotation_subject, Hadron, Quark model, Elliptic flow, General Physics and Astronomy, Collision, 01 natural sciences, Asymmetry, Nuclear physics, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Multiplicity (chemistry), Nuclear Experiment, 010306 general physics, media_common
Abstract: Asymmetric nuclear collisions of p+Al, p+Au, d+Au, and ^{3}He+Au at sqrt[s_{NN}]=200 GeV provide an excellent laboratory for understanding particle production, as well as exploring interactions among these particles after their initial creation in the collision. We present measurements of charged hadron production dN_{ch}/dη in all such collision systems over a broad pseudorapidity range and as a function of collision multiplicity. A simple wounded quark model is remarkably successful at describing the full data set. We also measure the elliptic flow v_{2} over a similarly broad pseudorapidity range. These measurements provide key constraints on models of particle emission and their translation into flow.
Published: 2018
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7. Measurements of Multiparticle Correlations in d+Au Collisions at 200, 62.4, 39, and 19.6 GeV and p+Au Collisions at 200 GeV and Implications for Collective Behavior

Author: Y. I. Makdisi, A. V. Kazantsev, N. Feege, B. M. Johnson, M. Boer, V. Bumazhnov, I. Tserruya, M. Jezghani, Sándor Lökös, M. J. Tannenbaum, K. N. Barish, V. Singh, A. Hodges, D. Lynch, S. Zharko, B. K. Schmoll, T. Murakami, A. Taranenko, Jaehyeok Yoo, T. Koblesky, S. P. Stoll, A. Sen, Mikhail Malaev, T. Hachiya, Y. Fukuda, A. Takeda, G. J. Ottino, G. David, A. Bagoly, S. Hasegawa, K. L. Smith, E. J. Desmond, C. Gal, Julia Velkovska, Senta Greene, Alice Mignerey, Kyoichiro Ozawa, P. V. Radzevich, S. Miyasaka, A. Franz, D. E. Fields, M. L. Brooks, S. I. Morrow, M. Sarsour, Eunja Kim, C. Ayuso, Mate Csanad, A. Iordanova, S. Y. Han, M. Finger, Takao Sakaguchi, J. Runchey, V. R. Loggins, J. T. Mitchell, S. P. Sorensen, Hari Guragain, B. V. Jacak, V. Babintsev, C. L. Silva, N. Hotvedt, J. E. Frantz, Shih-Chang Lee, Y. Riabov, J. Bryslawskyj, B. Fadem, E. O'Brien, B. Azmoun, Kenta Shigaki, R. Cervantes, H. En'yo, X. He, N. S. Bandara, D. Reynolds, A. D. Frawley, Vladislav Manko, Xiong Wang, D. J. Kim, M. J. Leitch, Byung-Sik Hong, R. A. Soltz, A. S. Nyanin, Vladimir Samsonov, Christine Nattrass, S. Huang, Wesley James Metzger, P. Yin, Chong Kim, A. Bazilevsky, T. Todoroki, Y. Watanabe, Viktor Riabov, T. Novák, Rachid Nouicer, A. N. Zelenski, N. Novitzky, P. L. McGaughey, E. O. Lallow, M. I. Nagy, F. Giordano, M. Alfred, Michael William Phipps, Kenichi Imai, H. F. Hamilton, Alexandre Lebedev, Kei Nagashima, R. P. Pisani, Z. Wang, Serpil Yalcin, Takafumi Niida, J. Huang, A. Timilsina, I. Nakagawa, A. Berdnikov, Jennifer E. Perry, T. O. S. Haseler, C. L. Woody, D. Dixit, V. Canoa Roman, Alexander Milov, M. McCumber, S. Esumi, J. Imrek, C. P. Wong, L. D. Liu, Y. J. Kwon, M. Connors, Raphael Noel Tieulent, D. Kapukchyan, T. Majoros, W. A. Zajc, David Olle Rickard Silvermyr, L. Xue, A. Enokizono, L. Zou, Y. L. Yamaguchi, H. Masuda, Kensuke Homma, Prakhar Garg, J. L. Nagle, Petr Gallus, Susumu Sato, H. Asano, A. Denisov, C. Xu, Z. Ji, D. P. Morrison, E. Kistenev, D. Yu Peressounko, T. Nagashima, R. S. Towell, B. Ujvari, Minghui Liu, Prashant Shukla, Hideki Hamagaki, W. Fan, N. Apadula, I. V. Sourikova, T. A. Shibata, S. F. Pate, K. I. Hahn, Sergey Fokin, X. Jiang, A. Sexton, P. Kline, G. D. N. Perera, A. Pun, Kenneth Francis Read, J. Sun, A. Dion, D. Isenhower, T. Elder, T. Moon, D. V. Perepelitsa, A. Drees, Keiji Nagai, R. Seto, T. W. Danley, S. Syed, D. McGlinchey, D. Ivanishchev, Radek Novotny, Jong-Min Park, Taku Gunji, M. Patel, P. Montuenga, Y. H. Leung, S. Mizuno, Qiao Xu, N. Grau, Xiao-yan Li, V. Papavassiliou, J. Hanks, Hiroyuki Sako, C. E. Perezlara, H. W. Van Hecke, Koji Sato, D. E. Mihalik, A. Sukhanov, K. Kurita, Motoi Inaba, C. Butler, D. Sharma, M. Virius, S. D. Rolnick, S. Bathe, A. Durum, N. Cronin, M. Snowball, Martin Purschke, C. A. Aidala, M. Chiu, M. Tomášek, T. Shioya, W. Peng, P. W. Stankus, Agneta Oskarsson, C. A. Ogilvie, I. J. Choi, D. Kincses, John Matthew Durham, M. J. Skoby, Y. Ito, Y. Berdnikov, T. K. Hemmick, C. McKinney, Anne Marie Sickles, B. Schaefer, Vaclav Vrba, K. Hill, V. Andrieux, J. S. Bok, V. Khachatryan, M. Beaumier, K. DeBlasio, S. Vazquez-Carson, S. Karthas, D. Kotov, S. H. Lim, D. S. Jumper, Y. Goto, K. Aoki, J. D. Osborn, A. Yanovich, D. Jouan, Inseok Yoon, J. D. Orjuela Koop, John Hill, Toru Sugitate, D. Kawall, M. Grosse Perdekamp, G. Mitsuka, H. Yu, T. Sumita, C. Y. Chi, Yasutada Akiba, S. Park, J. Murata, M. Slunecka, R. Belmont, R. Seidl, I. Shein, K. Tanida, K. Sedgwick, Z. Rowan, M. Mendoza, M. S. Daugherity, Mihael Makek, A. Deshpande, H. Yamamoto, J. G. Lajoie, C. P. Singh, R. Petti, N. A. Lewis, V. Jorjadze, Moonhee Kim, K. Lovasz, J. Sziklai, Zvi Hirsh Citron, H. Ge, V. Pantuev, K. Nakano, W. E. Sondheim, H. Nakagomi, T. Hoshino, D. Richford, A. S. Safonov, Yoshifumi Ueda, J. H. Do, C. L. Towell, N. Vukman, M. Rosati, Tamás Csörgő, S. Kudo, S. Campbell, K. A. Drees, E. J. Mannel, T. Rinn, C. Pinkenburg, J. Klatsky, K. Dehmelt, J. H. Kang, J. S. Haggerty, G. Tarnai, S. Tarafdar, Alexei Khanzadeev, J. B. Choi, Dipak Kumar Mishra, Bhartendu K. Singh, Dmitry Blau, I. E. Yushmanov, Min-Hye Kim, S. H. Lee, Mirta Dumancic, Maya Hachiya Shimomura, and R. S. Hollis
Subjects: Physics, Large Hadron Collider, 010308 nuclear & particles physics, General Physics and Astronomy, 01 natural sciences, Nuclear physics, Momentum, Deuterium, Quantum mechanics, 0103 physical sciences, Quark–gluon plasma, Rapidity, Nuclear Experiment, 010306 general physics, Anisotropy, Glauber, Sign (mathematics)
Abstract: Recently, multiparticle-correlation measurements of relativistic p/d/He3+Au, p+Pb, and even p+p collisions show surprising collective signatures. Here, we present beam-energy-scan measurements of two-, four-, and six-particle angular correlations in d+Au collisions at sNN=200, 62.4, 39, and 19.6 GeV. We also present measurements of two- and four-particle angular correlations in p+Au collisions at sNN=200 GeV. We find the four-particle cumulant to be real valued for d+Au collisions at all four energies. We also find that the four-particle cumulant in p+Au has the opposite sign as that in d+Au. Further, we find that the six-particle cumulant agrees with the four-particle cumulant in d+Au collisions at 200 GeV, indicating that nonflow effects are subdominant. These observations provide strong evidence that the correlations originate from the initial geometric configuration, which is then translated into the momentum distribution for all particles, commonly referred to as collectivity. © 2018 American Physical Society. (Less)
Published: 2018
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8. Nuclear Dependence of the Transverse-Single-Spin Asymmetry for Forward Neutron Production in Polarized p+A Collisions at sNN=200 GeV

Author: K. Lovasz, Y. J. Kwon, H. Nakagomi, T. Hoshino, D. Richford, A. S. Safonov, Z. Rowan, M. Mendoza, Alexander Milov, Senta Greene, Yoshifumi Ueda, J. H. Do, C. L. Towell, C. Ayuso, N. Vukman, A. Takeda, B. Fadem, E. O'Brien, R. A. Soltz, E. O. Lallow, F. Giordano, D. P. Morrison, David Olle Rickard Silvermyr, X. Jiang, Z. Ji, Y. Watanabe, D. Yu Peressounko, A. Sukhanov, K. Kurita, M. Rosati, Hari Guragain, Takafumi Niida, J. Huang, D. Kawall, A. Sen, Tamás Csörgő, M. Finger, Maya Hachiya Shimomura, R. S. Hollis, J. E. Frantz, Y. Riabov, C. L. Silva, Prakhar Garg, S. Park, J. Murata, S. Kudo, J. Bryslawskyj, D. Reynolds, A. V. Kazantsev, Kenta Shigaki, R. Cervantes, D. E. Fields, Y. I. Makdisi, J. D. Osborn, Inseok Yoon, B. V. Jacak, Viktor Riabov, Xiong Wang, I. Shein, A. S. Nyanin, K. A. Drees, K. Tanida, K. Sedgwick, V. Bumazhnov, Xiao-yan Li, Rachid Nouicer, A. N. Zelenski, J. H. Kang, Prashant Shukla, Dmitry Blau, M. Boer, I. Tserruya, J. S. Haggerty, Mihael Makek, A. Deshpande, J. Hanks, H. Yamamoto, Hiroyuki Sako, T. Novák, N. Feege, M. Jezghani, S. Campbell, S. F. Pate, Sándor Lökös, C. L. Woody, A. Berdnikov, Radek Novotny, A. Pun, M. S. Daugherity, V. Singh, H. En'yo, M. J. Leitch, B. Azmoun, K. N. Barish, M. J. Tannenbaum, Y. H. Leung, B. M. Johnson, T. Koblesky, J. Klatsky, C. P. Singh, K. L. Smith, E. J. Desmond, S. Syed, J. D. Orjuela Koop, Y. Fukuda, S. Zharko, R. Petti, N. A. Lewis, A. Bagoly, D. Ivanishchev, Kenichi Imai, D. V. Perepelitsa, V. Papavassiliou, V. Pantuev, Petr Gallus, T. O. S. Haseler, T. Hachiya, T. Nagashima, C. E. Perezlara, T. Murakami, P. V. Radzevich, G. David, A. Taranenko, Serpil Yalcin, E. J. Mannel, T. Rinn, I. Nakagawa, A. Enokizono, B. K. Schmoll, Jaehyeok Yoo, G. D. N. Perera, P. Kline, A. Dion, S. Esumi, I. V. Sourikova, V. Jorjadze, Mikhail Malaev, E. Kistenev, Brajesh K. Singh, G. J. Ottino, Kyoichiro Ozawa, Eunja Kim, C. P. Wong, L. D. Liu, Keiji Nagai, Alice Mignerey, J. Sziklai, S. I. Morrow, Hideki Hamagaki, W. Fan, M. Connors, C. Pinkenburg, S. P. Sorensen, S. Miyasaka, K. I. Hahn, A. Franz, M. Beaumier, J. Runchey, W. A. Zajc, L. Xue, C. Gal, K. Dehmelt, M. L. Brooks, V. Babintsev, A. Durum, Balazs Ujvari, P. L. McGaughey, Takao Sakaguchi, Julia Velkovska, A. Denisov, N. Cronin, G. Tarnai, Y. L. Yamaguchi, A. D. Frawley, Sergey Fokin, I. E. Yushmanov, C. Xu, M. Tomášek, W. Peng, S. Tarafdar, J. G. Lajoie, S. Huang, M. Alfred, Michael William Phipps, M. Slunecka, R. Belmont, D. E. Mihalik, P. W. Stankus, R. Seidl, L. Zou, N. S. Bandara, Wesley James Metzger, M. Snowball, C. Butler, Martin Purschke, Byung-Sik Hong, Chong Kim, A. Bazilevsky, Minghui Liu, C. A. Aidala, D. Sharma, J. Sun, Jennifer E. Perry, H. F. Hamilton, A. Sexton, Alexei Khanzadeev, I. J. Choi, M. J. Skoby, Y. Ito, Kenneth Francis Read, Alexandre Lebedev, R. Seto, Vladimir Samsonov, T. Shioya, Christine Nattrass, P. Montuenga, T. W. Danley, V. Andrieux, V. Khachatryan, Anne Marie Sickles, N. Grau, B. Schaefer, J. S. Bok, Koji Sato, J. B. Choi, X. He, R. S. Towell, M. I. Nagy, T. Todoroki, Dipak Kumar Mishra, Shih-Chang Lee, D. Kapukchyan, D. McGlinchey, H. Yu, T. Sumita, C. Y. Chi, Yasutada Akiba, T. Majoros, Min-Hye Kim, J. L. Nagle, Mirta Dumancic, T. A. Shibata, D. Isenhower, T. Moon, M. Sarsour, A. Iordanova, S. Y. Han, H. Masuda, Kensuke Homma, D. J. Kim, N. Novitzky, R. P. Pisani, M. McCumber, V. R. Loggins, J. T. Mitchell, Kei Nagashima, Motoi Inaba, V. Canoa Roman, N. Hotvedt, J. Imrek, Vladislav Manko, Raphael Noel Tieulent, Susumu Sato, H. Asano, P. Yin, Jong-Min Park, Taku Gunji, A. Timilsina, M. Patel, D. Lynch, S. Hasegawa, M. Virius, S. D. Rolnick, D. Dixit, Agneta Oskarsson, D. Kincses, John Matthew Durham, Y. Berdnikov, C. McKinney, Vaclav Vrba, K. Hill, S. Bathe, M. Chiu, C. A. Ogilvie, T. K. Hemmick, K. DeBlasio, S. Vazquez-Carson, S. Karthas, D. Kotov, D. S. Jumper, M. Csanad, S. Mizuno, S. P. Stoll, Y. Goto, K. Aoki, H. W. Van Hecke, D. Jouan, N. Apadula, A. Drees, Moonhee Kim, Zvi Hirsh Citron, H. Ge, K. Nakano, W. E. Sondheim, Z. Wang, T. Elder, Qiao Xu, S. H. Lim, A. Yanovich, John Hill, Toru Sugitate, M. Grosse Perdekamp, and G. Mitsuka
Subjects: Physics, Particle physics, Large Hadron Collider, 010308 nuclear & particles physics, Scattering, media_common.quotation_subject, General Physics and Astronomy, Absolute value, 01 natural sciences, Asymmetry, Spectral line, Nuclear physics, 0103 physical sciences, Neutron, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Spin-½, media_common
Abstract: During 2015, the Relativistic Heavy Ion Collider (RHIC) provided collisions of transversely polarized protons with Au and Al nuclei for the first time, enabling the exploration of transverse-single-spin asymmetries with heavy nuclei. Large single-spin asymmetries in very forward neutron production have been previously observed in transversely polarized p+p collisions at RHIC, and the existing theoretical framework that was successful in describing the single-spin asymmetry in p+p collisions predicts only a moderate atomic-mass-number (A) dependence. In contrast, the asymmetries observed at RHIC in p+A collisions showed a surprisingly strong A dependence in inclusive forward neutron production. The observed asymmetry in p+Al collisions is much smaller, while the asymmetry in p+Au collisions is a factor of 3 larger in absolute value and of opposite sign. The interplay of different neutron production mechanisms is discussed as a possible explanation of the observed A dependence.
Published: 2018
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9. Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions atsNN=200 GeV

Author: Alexander Milov, R. A. Soltz, T. Engelmore, P. Sett, Frank Ellinghaus, Z. Rowan, Y. Watanabe, M. Mendoza, S. N. White, M. Grosse Perdekamp, F. Giordano, Deepa Thomas, E. R. Kinney, D. P. Morrison, M. E. Connors, N. S. Bandara, S. K. Park, J. E. Frantz, S. Bathe, Agneta Oskarsson, Zvi Hirsh Citron, M. Beaumier, Tatsuya Chujo, Vladimir Samsonov, Christine Nattrass, H. Ge, K. Nakano, K. S. Joo, M. Tomášek, G. S. Kyle, Y. Berdnikov, S. H. Lee, C. McKinney, James Alexander, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, T. Todoroki, A. V. Kazantsev, W. E. Sondheim, Alexei Khanzadeev, Vaclav Vrba, Klaus Johannes Reygers, Takafumi Niida, J. Huang, H. A. Gustafsson, H. W. Yu, Alexandre Lebedev, K. Boyle, Y. Nakamiya, D. Lynch, L. Tomášek, E. Stenlund, C. Baumann, J. B. Choi, Sung Keun Park, T. L. Thomas, Rui Wei, D. M. Lee, X. Jiang, S. Esumi, R. Ichimiya, Hiroyuki Sako, B. Komkov, S. W. Nam, P. Ružička, Dipak Kumar Mishra, T. Jones, Peter Christiansen, M. K. Dayananda, G. Baksay, N. N. Ajitanand, S. Hasegawa, N. Feege, Bhartendu K. Singh, B. Azmoun, Y. J. Mao, A. Král, P. Liebing, Tsutomu Mibe, J. L. Nagle, D. Winter, Y. Fukao, Prakhar Garg, Jen-Chieh Peng, Viktor Riabov, J. G. Rubin, M. A. L. Leite, S. H. Lim, R. Belmont, J. S. Kapustinsky, A. Kiss, V. Babintsev, D. Yu Peressounko, Dennis Perepelitsa, J. Newby, J. H. Bhom, G. Roche, B. Bannier, K. S. Sim, Ryugo S. Hayano, Henner Buesching, B. Sahlmueller, Y. J. Kim, M. Oka, T. V. Moukhanova, Dmitry Blau, G. D. N. Perera, T. C. Awes, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, D. Reynolds, Serpil Yalcin, F. Matathias, P. Kline, K. S. Lee, Atsushi Taketani, E. J. Desmond, M. Chiu, Ajit Kumar Mohanty, Takahiro Nakamura, V. S. Pantuev, D. McGlinchey, Susumu Oda, I. Nakagawa, Aaron Angerami, Steve Edwards, Inkyu Park, B. Meredith, Shunji Nishimura, K. A. Drees, Marcus Hohlmann, D. Hornback, S. Dairaku, Xiong Wang, Z. Conesa del Valle, E. Vazquez-Zambrano, T. A. Shibata, C. L. Silva, T. Sato, R. Yang, S. Taneja, Y. Tanaka, J. Hamblen, A. Durum, P. Montuenga, W. A. Zajc, L. A. Linden Levy, L. Xue, Kensuke Homma, E. Richardson, E. Mannel, John Hill, A. Taranenko, Y. Riabov, K. Imai, T. Murakami, Kenta Shigaki, S. Sato, O. Dietzsch, H. Valle, C. A. Ogilvie, T. K. Hemmick, B. J. Ramson, J. M. Durham, Yasuo Miake, Martin Purschke, V. Baublis, C. A. Aidala, B. Bassalleck, J. Rak, T. Hester, Kazushi Miki, D. Sharma, M. Kasai, Y. Tsuchimoto, M. Wysocki, T. Novák, I. Tserruya, Dipanwita Dutta, A. Denisov, M. Jezghani, Yu. Efremenko, V. Cianciolo, K. Yamaura, A. Meles, Y. Iwanaga, M. Konno, Toru Sugitate, J. Klatsky, K. DeBlasio, P. L. McGaughey, K. Fujiwara, K. Karatsu, Pawan Kumar Netrakanti, M. Nguyen, A. S. Nyanin, V. Singh, H. J. Moon, C. Gal, L. Baksay, Julia Velkovska, L. Kochenda, M. Issah, M. Virius, T. Koblesky, R. Pinson, D. Isenhower, A. Toia, A. Morreale, Rachid Nouicer, I. E. Yushmanov, T. Moon, Z. Fraenkel, M. Stepanov, Anne Marie Sickles, Sergey Fokin, H. Pei, Hongfang Liu, D. E. Fields, A. N. Zelenski, M. Proissl, V. Khachatryan, J. T. Mitchell, K. N. Barish, R. K. Choudhury, K. Okada, B. Schaefer, S. Tarafdar, B. V. Jacak, Senta Greene, A. Glenn, J. D. Orjuela Koop, K. Das, M. Rosati, N. Hotvedt, S. Sawada, R. Seidl, Eunja Kim, J. S. Bok, Vladislav Manko, Tamás Csörgő, J. Ying, M. McCumber, T. Kempel, C. L. Woody, A. Berdnikov, M. Naglis, H. Nakagomi, François Fleuret, T. Hoshino, A. Franz, M. Slunečka, A. T. Basye, S. Beckman, C. H. Chen, Gary Grim, Eva Haslum, M. J. Leitch, S. Belikov, T. Ichihara, K. V. Dharmawardane, S. Mizuno, B. Fadem, N. Apadula, A. Caringi, C. Oakley, A. Drees, A. Manion, J. Hanks, J. H. Kang, I. Ravinovich, Jiangyong Jia, E. O'Brien, D. J. Kim, Petr Gallus, G. R. Young, C. Vale, J. S. Haggerty, K. Sakashita, A. Timilsina, Charles Maguire, Takahiro Fusayasu, N. Grau, R. S. Towell, Prashant Shukla, M. Kurosawa, E. T. Atomssa, H. W. Van Hecke, D. Kotov, M. Bai, S. F. Pate, D. S. Jumper, D. Kleinjan, S. Campbell, E. Kistenev, Y. J. Kwon, Jason Kamin, I. V. Sourikova, S. P. Stoll, Kei Nagashima, A. Enokizono, D. Silvermyr, Ke. Nakamura, O. Drapier, P. Lichtenwalner, Y. Onuki, Y. Goto, H. Al-Bataineh, Motoi Inaba, J. Sun, Alice Mignerey, S. S.E. Rosendahl, G. Bunce, L. Zou, J. A. Key, R. M. Wright, M. Sarsour, Mate Csanad, W. J. Park, A. Iordanova, Christopher Rosen, R. Kitamura, G. W. Kim, P. Chung, N. Saito, D. Jouan, L. D'Orazio, Masamichi Ishihara, S. Miyasaka, D. Ivanishchev, J. H. Do, A. Yanovich, V. Papavassiliou, Y. S. Lai, S. Y. Han, J. D. Osborn, Inseok Yoon, Raphael Noel Tieulent, Minghui Liu, S. Nagamiya, M. Ouchida, C. L. Towell, Y. Ikeda, R. Lacey, N. Means, Zhiying You, J. Jin, Takao Sakaguchi, S. Sano, T. Rinn, M. Nihashi, A. Sen, M. Togawa, R. Bennett, M. Kawashima, M. Heffner, Kenneth Francis Read, M. Finger, E. M. Takagui, R. Granier de Cassagnac, A. Adare, A. Datta, H. Asano, T. O. S. Haseler, Jong-Min Park, M. Gonin, C. Pinkenburg, N. Novitzky, Jongmin Lee, Taku Gunji, H. Gong, J. Seele, D. Kawall, M. S. Daugherity, A. D. Frawley, H. Qu, P. B. Diss, K. Dehmelt, R. P. Pisani, K. Tanida, H. Themann, C. P. Singh, M. Patel, F. Kajihara, B. M. Johnson, J. Murata, Hideki Hamagaki, K. Aoki, Gerd Joachim Kunde, G. David, I. Shein, A. S. White, K. Sedgwick, S. Butsyk, S. Huang, Mihael Makek, A. Deshpande, R. J. Petti, K. I. Hahn, I. Younus, S. Zhou, T. Dahms, W. Holzmann, S. D. Rolnick, H. F. Hamilton, Maya Hachiya Shimomura, R. S. Hollis, J. Sziklai, K. Watanabe, Y. I. Makdisi, K. Shoji, Brian Cole, I. Garishvili, M. L. Brooks, S. Yokkaichi, F. Wei, M. J. Tannenbaum, H. Torii, B. K. Schmoll, A. Kim, Jaehyeok Yoo, S. Rembeczki, T. Sumita, C. Y. Chi, B. Love, Yasutada Akiba, Y. L. Yamaguchi, A. Sexton, R. Seto, T. W. Danley, I. Danchev, X. He, Y. Aramaki, Robert Vertesi, H. En'yo, J. Koster, H. Masui, A. Veicht, A. Mwai, S. Kanda, T. Horaguchi, P. W. Stankus, A. Sukhanov, K. Kurita, H. Pereira, Y. Morino, C. O. Kim, R. Pak, S. P. Sorensen, O. Chvala, C. Silvestre, J. G. Lajoie, M. Alfred, T. Hachiya, Marisilvia Donadelli, V. Bumazhnov, Min Soo Kim, R. Tanabe, Rushan Han, S. Lee, Jennifer E. Perry, A. Kravitz, K. B. Lee, D. Roach, K. M. Kijima, B. Kimelman, K. Hashimoto, Xingguo Li, A. Dion, Johannes Peter Wessels, J. Bryslawskyj, Beomkyu Kim, M. Snowball, I. J. Choi, B. Xia, M. I. Nagy, D. Watanabe, M. D. Malik, and E. Vznuzdaev
Subjects: Physics, Jet (fluid), Particle physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, General Physics and Astronomy, 01 natural sciences, Spectral line, Nuclear physics, Deuterium, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), PHENIX detector, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Energy (signal processing)
Abstract: Jet production rates are measured in p+p and d+Au collisions at sqrt[s_{NN}]=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the R=0.3 anti-k_{t} algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multiwire proportional chambers, and the jet transverse momentum (p_{T}) spectra are corrected for the detector response. Spectra are reported for jets with 12
Published: 2016
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10. Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions at √[s(NN)]=200 GeV

Author: A, Adare, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, M, Alfred, A, Angerami, K, Aoki, N, Apadula, Y, Aramaki, H, Asano, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, N S, Bandara, B, Bannier, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, M, Beaumier, S, Beckman, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, J H, Bhom, D S, Blau, J S, Bok, K, Boyle, M L, Brooks, J, Bryslawskyj, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, A, Caringi, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, J B, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, Z, Conesa Del Valle, M, Connors, M, Csanád, T, Csörgő, T, Dahms, S, Dairaku, I, Danchev, T W, Danley, K, Das, A, Datta, M S, Daugherity, G, David, M K, Dayananda, K, DeBlasio, K, Dehmelt, A, Denisov, A, Deshpande, E J, Desmond, K V, Dharmawardane, O, Dietzsch, A, Dion, P B, Diss, J H, Do, M, Donadelli, L, D'Orazio, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, N, Feege, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, C, Gal, P, Gallus, P, Garg, I, Garishvili, H, Ge, F, Giordano, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, G, Grim, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, T, Hachiya, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, H F, Hamilton, R, Han, S Y, Han, J, Hanks, S, Hasegawa, T O S, Haseler, K, Hashimoto, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, R S, Hollis, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, T, Hoshino, N, Hotvedt, J, Huang, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, M, Inaba, A, Iordanova, D, Isenhower, M, Ishihara, M, Issah, D, Ivanishchev, Y, Iwanaga, B V, Jacak, M, Jezghani, J, Jia, X, Jiang, J, Jin, B M, Johnson, T, Jones, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, J, Kamin, S, Kanda, J H, Kang, J, Kapustinsky, K, Karatsu, M, Kasai, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, J A, Key, V, Khachatryan, A, Khanzadeev, K M, Kijima, J, Kikuchi, A, Kim, B I, Kim, C, Kim, D J, Kim, E-J, Kim, G W, Kim, M, Kim, Y-J, Kim, B, Kimelman, E, Kinney, Á, Kiss, E, Kistenev, R, Kitamura, J, Klatsky, D, Kleinjan, P, Kline, T, Koblesky, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K S, Lee, S, Lee, S H, Lee, M J, Leitch, M A L, Leite, X, Li, P, Lichtenwalner, P, Liebing, S H, Lim, L A, Linden Levy, T, Liška, H, Liu, M X, Liu, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, M, Makek, M D, Malik, A, Manion, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, D, McGlinchey, C, McKinney, N, Means, A, Meles, M, Mendoza, B, Meredith, Y, Miake, T, Mibe, A C, Mignerey, K, Miki, A, Milov, D K, Mishra, J T, Mitchell, S, Miyasaka, S, Mizuno, A K, Mohanty, P, Montuenga, H J, Moon, T, Moon, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, T, Murakami, J, Murata, A, Mwai, S, Nagamiya, K, Nagashima, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, H, Nakagomi, Y, Nakamiya, K R, Nakamura, T, Nakamura, K, Nakano, S, Nam, C, Nattrass, P K, Netrakanti, J, Newby, M, Nguyen, M, Nihashi, T, Niida, S, Nishimura, R, Nouicer, T, Novák, N, Novitzky, A S, Nyanin, C, Oakley, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, J D, Orjuela Koop, J D, Osborn, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J S, Park, S, Park, S K, Park, W J, Park, S F, Pate, M, Patel, H, Pei, J-C, Peng, H, Pereira, D V, Perepelitsa, G D N, Perera, D Yu, Peressounko, J, Perry, R, Petti, C, Pinkenburg, R, Pinson, R P, Pisani, M, Proissl, M L, Purschke, H, Qu, J, Rak, B J, Ramson, I, Ravinovich, K F, Read, S, Rembeczki, K, Reygers, D, Reynolds, V, Riabov, Y, Riabov, E, Richardson, T, Rinn, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, Z, Rowan, J G, Rubin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, H, Sako, V, Samsonov, S, Sano, M, Sarsour, S, Sato, T, Sato, S, Sawada, B, Schaefer, B K, Schmoll, K, Sedgwick, J, Seele, R, Seidl, A, Sen, R, Seto, P, Sett, A, Sexton, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, M, Snowball, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, P W, Stankus, E, Stenlund, M, Stepanov, S P, Stoll, T, Sugitate, A, Sukhanov, T, Sumita, J, Sun, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, H, Themann, D, Thomas, T L, Thomas, R, Tieulent, A, Timilsina, T, Todoroki, M, Togawa, A, Toia, L, Tomášek, M, Tomášek, H, Torii, C L, Towell, R, Towell, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, Y S, Watanabe, F, Wei, R, Wei, J, Wessels, A S, White, S N, White, D, Winter, C L, Woody, R M, Wright, M, Wysocki, B, Xia, L, Xue, S, Yalcin, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, J H, Yoo, I, Yoon, Z, You, G R, Young, I, Younus, H, Yu, I E, Yushmanov, W A, Zajc, A, Zelenski, S, Zhou, and L, Zou
Abstract: Jet production rates are measured in p+p and d+Au collisions at sqrt[s_{NN}]=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the R=0.3 anti-k_{t} algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multiwire proportional chambers, and the jet transverse momentum (p_{T}) spectra are corrected for the detector response. Spectra are reported for jets with 12p_{T}50 GeV/c, within a pseudorapidity acceptance of |η|0.3. The nuclear-modification factor (R_{dAu}) values for 0%-100% d+Au events are found to be consistent with unity, constraining the role of initial state effects on jet production. However, the centrality-selected R_{dAu} values and central-to-peripheral ratios (R_{CP}) show large, p_{T}-dependent deviations from unity, challenging the conventional models that relate hard-process rates and soft-particle production in collisions involving nuclei.
Published: 2015

11. Measurements of Elliptic and Triangular Flow in High-MultiplicityHe3+AuCollisions atsNN=200 GeV

Author: H. Themann, Y. Nagata, B. Azmoun, A. Král, M. J. Kweon, Dmitry Blau, V. I. Kochetkov, M. Bai, E. C. Aschenauer, E. J. Desmond, R. S. Towell, J. Murata, I. Garishvili, Akio Kiyomichi, F. Wei, M. Togawa, E. Vazquez-Zambrano, M. Tomášek, J. D. Osborn, Gerd Joachim Kunde, Maya Hachiya Shimomura, Inseok Yoon, Zhiying You, J. Park, R. S. Hollis, R. Bennett, P. Tarján, M. Kawashima, G. S. Kyle, A. Rakotozafindrabe, F. Matathias, Kensuke Homma, N. Kurihara, I. Shein, M. Oka, M. Finger, A. Sen, V. S. Pantuev, P. Kline, K. S. Lee, M. Ouchida, James Alexander, A. V. Kazantsev, E. Richardson, P. Constantin, M. Kasai, N. Means, Sung Keun Park, T. Sumita, C. Y. Chi, Charles Maguire, Y. I. Makdisi, J. Hamblen, J. Asai, T. Sodre, K. Sedgwick, Y. Tsuchimoto, Y. Iwanaga, N. N. Ajitanand, K. S. Sim, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, C. Harper, Mihael Makek, Jongmin Lee, S. Dairaku, S. Hasegawa, I. E. Yushmanov, O. Zaudtke, V. Dzhordzhadze, S. Chernichenko, B. Bassalleck, M. Virius, E. T. Atomssa, P. Liebing, J. D. Orjuela Koop, C. H. Chen, T. Tabaru, A. Manion, K. Okada, N. S. Bandara, S. Butsyk, G. D. N. Perera, S. P. Sorensen, A. Deshpande, Takahiro Nakamura, Shingo Sakai, A. Hadj Henni, D. McGlinchey, Eun-Hee Kim, Susumu Oda, H. En'yo, M. J. Leitch, Junji Tojo, Y. Kwon, M. Konno, L. Tomášek, P. Mikeš, Dylan Walker, M. S. Daugherity, C. P. Singh, M. Beaumier, Philippe Rosnet, Alexandre Lebedev, Kiyoshi Tanida, B. M. Johnson, A. Yu. Semenov, J. Gosset, M. Sarsour, Mate Csanad, A. Iordanova, O. Chvala, A. Durum, J. Bryslawskyj, R. J. Petti, A. Taketani, V. L. Rykov, T. Dahms, Z. Yasin, Henner Buesching, Steve Edwards, K. S. Joo, D. M. Lee, Vladimir Samsonov, Christine Nattrass, T. Todoroki, A. Isupov, C. Suire, Seong H. Kim, S. Y. Han, Senta Greene, Y. Watanabe, J. Sziklai, Catherine Micaela Silvestre, K. Yamaura, A. Meles, C. L. Woody, A. Berdnikov, L. Patel, Beomkyu Kim, Wei Xie, M. Stepanov, L. Guo, Alexei Khanzadeev, J. G. Lajoie, E. Stenlund, R. Yang, H. Hiejima, S. Taneja, Gary Grim, M. Alfred, T. Hachiya, A. Caringi, Y. Nakamiya, D. Lynch, Brian Cole, K. Kiriluk, E. Kistenev, M. K. Lee, X. Gong, I. Younus, M. Kurosawa, T. C. Awes, Kyoichiro Ozawa, T. Liška, C. Baumann, J. B. Choi, H. Sakata, M. Nihashi, A. T. Basye, K. V. Dharmawardane, Petr Gallus, Jennifer E. Perry, D. Danley, Hongfang Liu, J. S. Kang, Jun Kikuchi, Marcus Hohlmann, S. Tarafdar, A. Vossen, K. Imai, Saskia Mioduszewski, G. Baksay, Hai Yu, M. Snowball, A. Kravitz, Dipak Kumar Mishra, David D'Enterria, Tadaaki Isobe, Tamas Ferenc Csorgo, B. E. Norman, J. L. Nagle, B. Fadem, E. O'Brien, D. John, P. Castera, K. R. Andrews, D. E. Fields, Ajit Kumar Mohanty, A. Soldatov, N. Novitzky, T. A. Shibata, C. L. Silva, B. V. Jacak, R. P. Pisani, M. Savastio, L. A. Linden Levy, I. V. Sourikova, H. Iinuma, P. Lichtenwalner, M. J. Tannenbaum, T. Sato, S. Esumi, I. J. Choi, T. L. Thomas, X. Jiang, Hiroaki Ohnishi, K. B. Lee, R. A. Soltz, H. Borel, A. P.T. Palounek, J. H. Bhom, M. McCumber, R. Ichimiya, Tae-Yeon Lee, M. Naglis, H. Nakagomi, T. Hoshino, J. Jin, K. O. Eyser, A. K. Purwar, Eva Haslum, B. Lenzi, Martin Purschke, B. Sahlmueller, Y. J. Kim, K. Fujiwara, Y. Onuki, Ryugo S. Hayano, Y. Riabov, J. Hanks, P. L. McGaughey, B. Xia, S. Afanasiev, Jan Rak, D. Isenhower, A. Toia, O. Dietzsch, H. Valle, T. Moon, Y. L. Yamaguchi, Dipanwita Dutta, C. Gal, L. Aphecetche, M. N. Wagner, Y. Fukao, A. Shevel, Pawan Kumar Netrakanti, D. Broxmeyer, T. Hester, Masayasu Ishihara, J. H. Do, M. Chiu, S. Beckman, C. L. Towell, J. T. Mitchell, H. Torii, B. K. Schmoll, A. Ster, N. Feege, Y. Miyachi, D. Roach, K. M. Kijima, R. Lacey, R. Granier de Cassagnac, A. Morreale, Kenta Shigaki, L. Mašek, M. Nguyen, A. S. Nyanin, A. Adare, B. Kimelman, M. Grosse Perdekamp, S. Mizuno, S. Yokkaichi, Julia Velkovska, M. Rosati, N. Hotvedt, R. Seidl, H. A. Gustafsson, C. Zhang, T. V. Moukhanova, Y. Ikeda, Z. Fraenkel, V. Khachatryan, Hiroyuki Sako, F. Giordano, M. E. Connors, Atsushi Takahara, S. K. Park, K. Hashimoto, Vladislav Manko, F. Staley, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Rachid Nouicer, H. W. Van Hecke, A. Dion, L. Zou, M. Slunečka, A. N. Zelenski, M. Proissl, P. Ružička, J. G. Boissevain, V-N. Tram, A. Kim, Jaehyeok Yoo, D. Mukhopadhyay, R. K. Choudhury, N. Grau, Shunji Nishimura, T. Rinn, Masashi Kaneta, A. A. Vinogradov, Xingguo Li, S. W. Nam, R. Vértesi, D. Hornback, E. Tennant, S. Rembeczki, Motoi Inaba, K. A. Drees, S. Belikov, Min Soo Kim, J. L. Charvet, S. Bathe, R. Akimoto, Minghui Liu, M. Gonin, D. Sharma, R. M. Wright, Johannes Peter Wessels, R. Tanabe, D. Layton, B. Komkov, Viktor Riabov, Agneta Oskarsson, M. Heffner, Jiangyong Jia, Y. Goto, H. Harada, C. Pinkenburg, Serpil Yalcin, A. Taranenko, T. Jones, Peter Christiansen, Kazushi Miki, Kenneth Francis Read, Y. Berdnikov, K. Dehmelt, S. H. Lee, Y. Akiba, K. Karatsu, J. Ben-Benjamin, T. E. Miller, T. Horaguchi, Brajesh K. Singh, J. Sun, D. Winter, D. Yu Peressounko, C. Vale, C. McKinney, W. C. Chang, A. Sukhanov, K. Kurita, M. Mishra, S. Nagamiya, G. Roche, B. S. Chang, Y. J. Mao, S. Kametani, Y. Hori, Anne Marie Sickles, Aaron Angerami, H. Pereira, Dennis Perepelitsa, J. Klatsky, A. Timilsina, Christine Angela Aidala, Tsutomu Mibe, M. I. Nagy, Vaclav Vrba, Klaus Johannes Reygers, J. Klay, M. A. L. Leite, Kei Nagashima, Rui Wei, B. Schaefer, A. Enokizono, H. Pei, Y. Morino, J. H. Kang, J. S. Haggerty, S. R. Lee, A. Romana, G. W. Kim, J. S. Bok, P. Chung, K. Utsunomiya, D. Watanabe, H. H. Shim, D. Kleinjan, S. Campbell, Rushan Han, S. H. Lim, J. Imrek, D. Kotchetkov, Raphael Noel Tieulent, W. A. Zajc, Jason Newby, Eric Appelt, C. O. Kim, M. D. Malik, L. Xue, J. Chiba, E. Vznuzdaev, Alice Mignerey, Susumu Sato, W. S. Emam, A. Datta, K. Das, J. E. Frantz, H. Asano, R. Pak, H. Kanou, R. Belmont, J. S. Kapustinsky, Jong-Min Park, M. B. Deaton, E. P. Hartouni, G. R. Young, V. Baublis, A. Denisov, Yuki Watanabe, V. Babintsev, Su Houng Lee, Y. S. Lai, V. Cianciolo, Taku Gunji, H. Gong, J. Seele, M. Patel, Y. Tanaka, L. D'Orazio, S. Miyasaka, Y. Tomita, E. Mannel, F. Kajihara, Nagahiro Saito, T. Novák, H. Delagrange, Sergey Fokin, H. J. Moon, L. Baksay, S. Zhou, A. Baldisseri, S. D. Rolnick, Takao Sakaguchi, C. Klein-Boesing, A. D. Frawley, A. S. White, S. Huang, S. H. Aronson, W. Holzmann, H. F. Hamilton, P. Sett, M. Mitrovski, Takafumi Niida, J. Huang, J. S. Yoo, M. K. Dayananda, Prakhar Garg, B. Bannier, T. Murakami, Robert F. Hobbs, Yi Gu, E. M. Takagui, Debashish Pal, S. Sawada, J. Ying, A. Franz, C. M. Camacho, Prashant Shukla, S. F. Pate, Ke. Nakamura, H. Al-Bataineh, J. A. Key, Alexander Milov, I. Nakagawa, Young-Ki Kim, T. Engelmore, S. Motschwiller, O. Drapier, Frank Ellinghaus, D. Ivanishchev, E. R. Kinney, D. P. Morrison, V. Papavassiliou, Sébastien Gadrat, B. H. Kang, V. E. Semenov, H. Al-Ta'Ani, Tatsuya Chujo, Jen-Chieh Peng, J. G. Rubin, D. Reynolds, Inkyu Park, Xiong Wang, Z. Conesa del Valle, Dong Jo Kim, S. Takagi, M. Wysocki, I. Tserruya, M. Jezghani, Yu. Efremenko, V. Singh, T. Koblesky, K. N. Barish, A. Glenn, Eunja Kim, S. Sano, N. Kamihara, X. He, J. Zimamyi, O. O. Omiwade, R. Armendariz, Byoungchoo Park, Y. Aramaki, N. Apadula, V. Peresedov, Z. Rowan, M. Mendoza, M. L. Brooks, C. Oakley, A. Drees, Steven E. Skutnik, S. N. White, Deepa Thomas, J. Kubart, J. Koster, K. Sakashita, T. O. S. Haseler, H. Qu, P. B. Diss, Zvi Hirsh Citron, D. Kotov, S. Batsouli, H. Masui, A. K. Dubey, H. Ge, K. Nakano, Hideki Hamagaki, K. Aoki, G. David, K. I. Hahn, J. Egdemir, A. A. Bickley, D. S. Jumper, Jason Kamin, A. Veicht, A. Mwai, W. E. Sondheim, B. Love, P. Montuenga, S. P. Stoll, C. R. Cleven, C. Haegemann, Y. Inoue, K. Boyle, P. A. Rukoyatkin, T. Ichihara, T. Kempel, Dong-Hun Kim, S. Kaneti, Osamu Jinnouchi, S. S.E. Rosendahl, A. G. Litvinenko, G. Bunce, Matthew G. Reuter, Takahiro Fusayasu, K. Watanabe, Alexander Malakhov, K. Shoji, A. Churyn, R. Kitamura, D. Silvermyr, S. Kanda, P. W. Stankus, L. S. Zolin, D. Jouan, A. Sexton, W. J. Park, Christopher Rosen, A. Kozlov, P. D. Barnes, A. Yanovich, R. Seto, K. Haruna, B. Meredith, C. A. Ogilvie, T. K. Hemmick, B. J. Ramson, John Hill, J. M. Durham, Yasuo Miake, Toru Sugitate, L. D. Isenhower, I. Danchev, K. DeBlasio, L. Kochenda, M. Issah, R. Pinson, François Fleuret, I. Ravinovich, and D. Kawall
Subjects: Nuclear physics, Physics, Pseudorapidity, Elliptic flow, Hadron, General Physics and Astronomy, Rapidity, Multiplicity (mathematics), Nuclear Experiment, Nucleon, Glauber, Charged particle
Abstract: We present the first measurement of elliptic ($v_2$) and triangular ($v_3$) flow in high-multiplicity $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV. Two-particle correlations, where the particles have a large separation in pseudorapidity, are compared in $^{3}$He$+$Au and in $p$$+$$p$ collisions and indicate that collective effects dominate the second and third Fourier components for the correlations observed in the $^{3}$He$+$Au system. The collective behavior is quantified in terms of elliptic $v_2$ and triangular $v_3$ anisotropy coefficients measured with respect to their corresponding event planes. The $v_2$ values are comparable to those previously measured in $d$$+$Au collisions at the same nucleon-nucleon center-of-mass energy. Comparison with various theoretical predictions are made, including to models where the hot spots created by the impact of the three $^{3}$He nucleons on the Au nucleus expand hydrodynamically to generate the triangular flow. The agreement of these models with data may indicate the formation of low-viscosity quark-gluon plasma even in these small collision systems.
Published: 2015
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12. Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Centrald+AuCollisions atsNN=200GeV

Author: K. Sakashita, Atsushi Takahara, D. Kotov, K. A. Drees, Dmitry Blau, Taku Gunji, H. Gong, J. Seele, J. Hamblen, Jason Kamin, F. Kajihara, S. P. Stoll, E. J. Desmond, S. S.E. Rosendahl, Hongfang Liu, D. E. Fields, S. Butsyk, G. Bunce, K. Das, S. Tarafdar, P. L. McGaughey, Y. Fukao, S. Zhou, B. V. Jacak, S. D. Rolnick, E. Vazquez-Zambrano, Eva Haslum, T. Hester, M. Chiu, C. A. Ogilvie, M. Tomášek, T. K. Hemmick, J. M. Durham, Yasuo Miake, L. Kochenda, M. Issah, M. McCumber, D. Jouan, G. S. Kyle, A. V. Kazantsev, Ajit Kumar Mohanty, C. L. Silva, James Alexander, R. Averbeck, Byung-Sik Hong, T. Sato, L. Tomášek, J. Hanks, Peter Christiansen, Vladimir Samsonov, A. Bazilevsky, Byoungchoo Park, Takahiro Fusayasu, A. Datta, C. Oakley, A. Drees, Soren Pontoppidan Sorensen, D. Isenhower, G. Roche, M. Kasai, T. Kempel, N. Grau, F. Matathias, Alexandre Lebedev, V. S. Pantuev, A. Toia, S. Kaneti, K. N. Barish, T. L. Thomas, ShinIchi Esumi, D. Silvermyr, Sung Keun Park, Y. Tsuchimoto, D. M. Lee, L. Patel, Y. Iwanaga, N. N. Ajitanand, Y. J. Mao, W. J. Park, Kensuke Homma, E. Richardson, K. Fujiwara, M. Rosati, Ryugo S. Hayano, Tamás Csörgő, Christopher Rosen, T. C. Awes, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, Motoi Inaba, R. M. Wright, Aaron Angerami, J. L. Nagle, Takahiro Nakamura, J. H. Kang, E. T. Atomssa, A. Taranenko, Kazushi Miki, T. Horaguchi, A. Enokizono, A. Yanovich, S. Sano, K. Watanabe, K. Shoji, J. S. Yoo, M. K. Dayananda, Y. Riabov, Kenta Shigaki, Brajesh K. Singh, I. E. Yushmanov, P. Chung, Maya Hachiya Shimomura, R. S. Hollis, D. John, P. Castera, Y. L. Yamaguchi, X. Jiang, A. Dion, M. I. Nagy, Johannes Peter Wessels, D. McGlinchey, J. S. Haggerty, S. R. Lee, W. A. Zajc, M. Wysocki, B. Bannier, E. J. Kim, Susumu Oda, K. Utsunomiya, A. Durum, A. Sukhanov, K. Kurita, H. Pereira, D. Hornback, B. Meredith, M. Nguyen, Masamichi Ishihara, Y. Morino, Inkyu Park, M. L. Brooks, A. S. Nyanin, Rachid Nouicer, K. Okada, A. N. Zelenski, K. S. Sim, T-A Shibata, C. Silvestre, V. Baublis, John Hill, P. W. Stankus, Xiong Wang, H. W. Van Hecke, A. Denisov, Yuki Watanabe, V. Cianciolo, T. Sodre, B. Bassalleck, K. Yamaura, M. Proissl, Jongmin Lee, T. Murakami, Minghui Liu, Z. Conesa del Valle, Y. I. Makdisi, B. Love, Dong Jo Kim, Marisilvia Donadelli, V. Bumazhnov, Beomkyu Kim, Sergey Fokin, Anders Nils Erik Oskarsson, Hiromi Iinuma, H. En'yo, M. Konno, M. Heffner, Jiangyong Jia, Y. Goto, M. J. Leitch, Toru Sugitate, A. Kiss, Kenneth Francis Read, T. Ichihara, S. W. Nam, R. Tanabe, R. Pak, Henner Buesching, Y. S. Lai, Senta Greene, R. Yang, Steve Edwards, B. Komkov, I. J. Choi, M. Ouchida, A. T. Basye, Hans-Åke Gustafsson, Martin Purschke, N. Means, X. Gong, Marcus Hohlmann, Tsutomu Mibe, D. Kawall, S. Sawada, B. Fadem, E. O'Brien, D. Kleinjan, S. Taneja, J. Ying, Evert Anders Stenlund, Alexander Milov, Y. Nakamiya, D. Lynch, M. A. L. Leite, A. Franz, I. Nakagawa, C. Harper, L. A. Linden Levy, H. H. Shim, K. R. Andrews, R. A. Soltz, Eric Appelt, Young-Ki Kim, C. A. Aidala, Y. J. Kwon, T. Engelmore, K. Imai, H. Qu, Rushan Han, R. Seto, Jason Newby, S. H. Lim, G. Baksay, S. Bathe, C. L. Woody, François Fleuret, Frank Ellinghaus, Hideki Hamagaki, K. Aoki, G. David, R. Belmont, J. S. Kapustinsky, M. Grosse Perdekamp, M. J. Tannenbaum, D. Watanabe, V. Babintsev, K. Karatsu, K. I. Hahn, M. D. Malik, M. E. Connors, S. H. Lee, Y. Akiba, C. McKinney, S. Yokkaichi, A. Caringi, J. E. Frantz, I. Danchev, J. Ben-Benjamin, A. Taketani, S. Nagamiya, Prashant Shukla, E. Vznuzdaev, X. He, E. R. Kinney, O. Chvala, Vaclav Vrba, Klaus Johannes Reygers, D. P. Morrison, H. Torii, Y. Hori, Anne Marie Sickles, M. Mendoza, S. N. White, D. S. Jumper, Rui Wei, S. Campbell, S. F. Pate, O. Dietzsch, J. S. Kang, Y. Aramaki, B. Sahlmueller, Y. Ikeda, Deepa Thomas, Ke. Nakamura, O. Drapier, Robert Vertesi, B. H. Kang, T. Dahms, I. V. Sourikova, H. Valle, J. S. Bok, T. Jones, J. Koster, Dipanwita Dutta, R. Akimoto, A. Kim, Zvi Hirsh Citron, D. Winter, H. Al-Bataineh, R. Armendariz, D. Yu Peressounko, S. Dairaku, L. Guo, Alexei Khanzadeev, C. Gal, Julia Velkovska, E. Tennant, S. Rembeczki, G. R. Young, K. Nakano, M. Gonin, C. Pinkenburg, J. T. Mitchell, H. Masui, J. G. Lajoie, W. E. Sondheim, D. Ivanischev, H. Al-Ta'Ani, Tatsuya Chujo, A. Veicht, R. Seidl, Y. Onuki, K. Boyle, J. B. Choi, Vladislav Manko, I. Tserruya, P. Ružička, S. Motschwiller, M. Slunečka, Yu. Efremenko, Jan Rak, R. Lacey, D. Broxmeyer, S. Belikov, R. Granier de Cassagnac, A. Adare, M. Virius, V. Papavassiliou, Manabu Togawa, V. Singh, A. Kravitz, Alice Mignerey, K. B. Lee, J. C. Peng, C. Vale, L. D'Orazio, A. Morreale, Viktor Riabov, C. H. Chen, Z. Fraenkel, Takao Sakaguchi, A. Manion, Y. Miyachi, Gary Grim, I. Ravinovich, J. H. Bhom, A. D. Frawley, M. Bai, Y-J Kim, S. Huang, E. C. Aschenauer, W. Holzmann, K. V. Dharmawardane, D. Roach, K. M. Kijima, T. V. Moukhanova, Zhiying You, R. Bennett, R. K. Choudhury, M. Kawashima, A. Glenn, M. Finger, K. Hashimoto, Xingguo Li, B. Azmoun, A. Král, M. Oka, P. Kline, K. S. Lee, P. Liebing, K. S. Joo, N. Apadula, H. Pei, A. Vossen, D. Sharma, M. Sarsour, Mate Csanad, A. Iordanova, R. Ichimiya, M. Nihashi, R. P. Pisani, M. Kurosawa, M. Savastio, J. Jin, E. M. Takagui, C. Baumann, C. P. Singh, B. M. Johnson, R. J. Petti, J. Sziklai, Brian Cole, Charles Maguire, R. S. Towell, Kiyoshi Tanida, I. Garishvili, F. Wei, E. Kistenev, P. Lichtenwalner, J. Sun, C. Y. Chi, Y. Tanaka, E. Mannel, M. Naglis, Nagahiro Saito, H. J. Moon, L. Baksay, A. Deshpande, Y. Watanabe, I. Younus, H. Themann, J. Murata, Gerd Joachim Kunde, I. Shein, and K. Sedgwick
Subjects: Physics, Range (particle radiation), Hadron, Elliptic flow, General Physics and Astronomy, Nuclear physics, Pion, Deuterium, Antiproton, Quadrupole, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, Anisotropy
Abstract: We present azimuthal angular correlations between charged hadrons and energy deposited in calorimeter towers in central d+Au and minimum bias p+p collisions at sqrt[s_{NN}]=200 GeV. The charged hadron is measured at midrapidity |η| 2.75 is observed in d+Au collisions. Using the event plane method applied to the Au-going energy distribution, we extract the anisotropy strength v_{2} for inclusive charged hadrons at midrapidity up to p_{T}=4.5 GeV/c. We also present the measurement of v_{2} for identified π^{±} and (anti)protons in central d+Au collisions, and observe a mass-ordering pattern similar to that seen in heavy-ion collisions. These results are compared with viscous hydrodynamic calculations and measurements from p+Pb at sqrt[s_{NN}]=5.02 TeV. The magnitude of the mass ordering in d+Au is found to be smaller than that in p+Pb collisions, which may indicate smaller radial flow in lower energy d+Au collisions.
Published: 2015
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13. Cold-Nuclear-Matter Effects on Heavy-Quark Production at Forward and Backward Rapidity ind+AuCollisions atsNN=200 GeV

Author: S. Bathe, Agneta Oskarsson, K. R. Andrews, R. A. Soltz, S. H. Lee, M. Grosse Perdekamp, Y. Akiba, X. He, T. Sodre, Jongmin Lee, M. E. Connors, C. McKinney, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, K. S. Sim, Rui Wei, Vladimir Samsonov, D. Lynch, I. Tserruya, Yu. Efremenko, D. Hornback, R. Yang, Y. Aramaki, Robert Vertesi, V. Singh, S. Taneja, T. Jones, Peter Christiansen, A. Taranenko, K. Imai, D. Winter, D. Yu Peressounko, S. Tarafdar, Kazushi Miki, T. Horaguchi, J. Koster, Eva Haslum, Brajesh K. Singh, A. Taketani, M. Ouchida, D. S. Jumper, H. Masui, N. Means, Tamas Ferenc Csorgo, Y. J. Mao, T. Dahms, Hiromi Iinuma, M. Gonin, A. Kiss, C. Harper, J. L. Nagle, K. Sakashita, M. Sarsour, Mate Csanad, D. John, P. Castera, Senta Greene, A. Glenn, K. Karatsu, A. T. Basye, Eunja Kim, A. Veicht, Henner Buesching, T. L. Thomas, A. Iordanova, J. Ben-Benjamin, B. Fadem, E. O'Brien, Y. Hori, Anne Marie Sickles, Taku Gunji, H. Gong, Steve Edwards, Gary Grim, S. Dairaku, J. H. Kang, J. S. Haggerty, D. Kotov, S. R. Lee, R. S. Towell, K. V. Dharmawardane, J. Seele, A. Sukhanov, A. Deshpande, K. Kurita, K. S. Joo, H. Pereira, Ryugo S. Hayano, Hongfang Liu, X. Gong, D. E. Fields, J. S. Yoo, M. K. Dayananda, F. Kajihara, Y. Riabov, K. Watanabe, Y. Morino, Kenta Shigaki, Marcus Hohlmann, B. V. Jacak, K. Utsunomiya, Inkyu Park, M. Nihashi, K. Shoji, M. Nguyen, K. N. Barish, L. A. Linden Levy, Xiong Wang, Z. Conesa del Valle, M. McCumber, C. Silvestre, A. S. Nyanin, N. Apadula, Dong Jo Kim, Rachid Nouicer, A. N. Zelenski, M. Proissl, G. R. Young, Jason Kamin, I. Garishvili, F. Wei, S. Butsyk, M. Wysocki, P. W. Stankus, M. Virius, Manabu Togawa, K. Fujiwara, Y. Onuki, B. Bannier, S. Zhou, A. Vossen, Y. L. Yamaguchi, J. Hanks, Jan Rak, S. Sano, R. Lacey, Marisilvia Donadelli, V. Bumazhnov, Sung Keun Park, O. Dietzsch, S. P. Stoll, R. Granier de Cassagnac, A. Adare, S. D. Rolnick, K. B. Lee, E. T. Atomssa, Y. Miyachi, S. S.E. Rosendahl, C. L. Woody, N. N. Ajitanand, H. A. Gustafsson, Y. S. Lai, R. P. Pisani, H. Valle, S. Esumi, Y. Watanabe, T. Murakami, J. C. Peng, C. H. Chen, D. Sharma, A. Manion, Dipanwita Dutta, H. W. Van Hecke, M. L. Brooks, R. Ichimiya, Ajit Kumar Mohanty, G. Bunce, Y. Ikeda, I. Younus, C. Gal, T. A. Shibata, C. L. Silva, T. Sato, R. Tanabe, P. Ružička, B. Azmoun, A. Král, Takahiro Nakamura, D. McGlinchey, Susumu Oda, A. Caringi, D. Roach, Julia Velkovska, Alexander Milov, K. M. Kijima, V. S. Pantuev, Y. Fukao, Viktor Riabov, A. Durum, M. Rosati, B. Love, I. Ravinovich, C. Y. Chi, T. Kempel, S. Kaneti, M. Bai, R. Akimoto, I. V. Sourikova, Aaron Angerami, K. Hashimoto, D. Isenhower, D. Jouan, J. Hamblen, W. A. Zajc, T. Hester, A. Toia, I. Nakagawa, Young-Ki Kim, T. Engelmore, K. Yamaura, O. Drapier, Frank Ellinghaus, M. Kurosawa, Xingguo Li, E. R. Kinney, M. Oka, C. Pinkenburg, E. C. Aschenauer, V. Baublis, Jiangyong Jia, A. Denisov, Yuki Watanabe, Y. Goto, V. Cianciolo, P. Kline, S. P. Sorensen, G. Roche, R. Seto, Sergey Fokin, K. Okada, K. S. Lee, H. Qu, D. Kleinjan, M. Naglis, M. Chiu, S. Sawada, C. A. Ogilvie, O. Chvala, Eric Appelt, I. Danchev, D. P. Morrison, H. En'yo, S. Campbell, B. H. Kang, M. J. Leitch, Zhiying You, R. Bennett, J. Ying, J. G. Lajoie, P. Liebing, M. Kawashima, Hideki Hamagaki, K. Aoki, M. Finger, A. Franz, M. Savastio, Masayasu Ishihara, N. Grau, Martin Purschke, T. K. Hemmick, Rushan Han, A. Enokizono, C. A. Aidala, G. David, K. I. Hahn, J. M. Durham, Yasuo Miake, A. Dion, M. I. Nagy, A. Kravitz, P. Chung, Y. J. Kwon, H. Al-Ta'Ani, Tatsuya Chujo, D. Broxmeyer, J. Jin, D. Kawall, A. Datta, E. M. Takagui, H. Themann, Prashant Shukla, A. Morreale, C. Baumann, Motoi Inaba, Z. Fraenkel, S. Yokkaichi, L. Kochenda, M. Issah, J. S. Kang, R. M. Wright, J. Murata, S. F. Pate, Ke. Nakamura, Gerd Joachim Kunde, R. K. Choudhury, C. P. Singh, I. Shein, B. M. Johnson, H. Al-Bataineh, R. Armendariz, R. J. Petti, K. Sedgwick, Johannes Peter Wessels, J. Sziklai, S. Motschwiller, Brian Cole, V. Papavassiliou, R. Pak, Beomkyu Kim, Byoungchoo Park, C. Oakley, A. Drees, I. J. Choi, D. Watanabe, M. D. Malik, E. Vznuzdaev, Alice Mignerey, L. D'Orazio, Takao Sakaguchi, A. D. Frawley, S. Huang, W. Holzmann, Maya Hachiya Shimomura, R. S. Hollis, Y. I. Makdisi, M. J. Tannenbaum, H. Torii, A. Kim, E. Tennant, S. Rembeczki, P. L. McGaughey, Minghui Liu, M. Heffner, Kenneth Francis Read, A. V. Kazantsev, Dmitry Blau, L. Tomášek, E. J. Desmond, E. Vazquez-Zambrano, M. Kasai, Y. Tsuchimoto, Y. Iwanaga, L. Patel, I. E. Yushmanov, L. Guo, Alexei Khanzadeev, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, Jun Kikuchi, E. Stenlund, J. B. Choi, J. H. Bhom, Charles Maguire, T. V. Moukhanova, M. Mendoza, S. N. White, Deepa Thomas, Jason Newby, J. E. Frantz, Kiyoshi Tanida, E. Kistenev, Zvi Hirsh Citron, K. Nakano, P. Lichtenwalner, W. E. Sondheim, D. Ivanischev, J. Sun, H. Pei, K. Boyle, B. Meredith, John Hill, F. Matathias, Kensuke Homma, Toru Sugitate, E. Richardson, Atsushi Takahara, K. A. Drees, Y. Tanaka, B. Bassalleck, K. Das, E. Mannel, H. J. Moon, L. Baksay, M. Konno, Y. Nakamiya, B. Komkov, Norio Saito, Tsutomu Mibe, M. A. L. Leite, G. Baksay, H. H. Shim, S. H. Lim, François Fleuret, R. Belmont, J. S. Kapustinsky, V. Babintsev, X. Jiang, B. Sahlmueller, Y. J. Kim, T. Ichihara, J. T. Mitchell, R. Seidl, S. W. Nam, M. Tomášek, Vladislav Manko, G. S. Kyle, James Alexander, M. Slunečka, Takahiro Fusayasu, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, S. Belikov, Alexandre Lebedev, D. M. Lee, C. Vale, D. Silvermyr, W. J. Park, Christopher Rosen, and A. Yanovich
Subjects: Quark, Semileptonic decay, Physics, Particle physics, General Physics and Astronomy, Binary number, Nuclear matter, Nuclear physics, Deuterium, Transverse momentum, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, Relativistic Heavy Ion Collider
Abstract: The PHENIX experiment has measured open heavy-flavor production via semileptonic decay over the transverse momentum range 1 < p(T) < 6 GeV/c at forward and backward rapidity (1.4 < vertical bar y vertical bar < 2.0) in d + Au and p + p collisions at root s(NN) = 200 GeV. In central d + Au collisions, relative to the yield in p + p collisions scaled by the number of binary nucleon-nucleon collisions, a suppression is observed at forward rapidity (in the d-going direction) and an enhancement at backward rapidity (in the Au-going direction). Predictions using nuclear-modified-parton-distribution functions, even with additional nuclear-p(T) broadening, cannot simultaneously reproduce the data at both rapidity ranges, which implies that these models are incomplete and suggests the possible importance of final-state interactions in the asymmetric d + Au collision system. These results can be used to probe cold-nuclear-matter effects, which may significantly affect heavy-quark production, in addition to helping constrain the magnitude of charmonia-breakup effects in nuclear matter.
Published: 2014
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14. Azimuthal-Angle Dependence of Charged-Pion-Interferometry Measurements with Respect to Second- and Third-Order Event Planes inAu+AuCollisions atsNN=200 GeV

Author: M. I. Nagy, D. Watanabe, E. Vznuzdaev, Beomkyu Kim, A. Deshpande, Johannes Peter Wessels, P. Tarján, K. A. Drees, Senta Greene, A. T. Basye, A. V. Kazantsev, Taku Gunji, H. Gong, J. Seele, B. Fadem, E. O'Brien, R. A. Soltz, L. Tomášek, F. Kajihara, M. Grosse Perdekamp, M. E. Connors, K. Das, S. Butsyk, Alice Mignerey, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, E. P. Hartouni, H. Pei, Tadaaki Isobe, S. Zhou, B. Komkov, Takao Sakaguchi, M. Rosati, P. L. McGaughey, Peter Christiansen, M. A. L. Leite, S. D. Rolnick, A. D. Frawley, S. Afanasiev, T. Nakamura, D. Winter, S. Huang, J. Newby, G. Roche, D. Yu Peressounko, A. Sukhanov, K. Kurita, Ajit Kumar Mohanty, T. A. Shibata, H. Pereira, A. A. Vinogradov, W. Holzmann, Maya Hachiya Shimomura, Y. I. Makdisi, D. Hornback, A. Kiss, Y. Morino, T. Sato, R. Belmont, Henner Buesching, J. S. Kapustinsky, Steve Edwards, R. S. Towell, Y. Ikeda, M. Naglis, V. Babintsev, Minghui Liu, C. L. Silva, I. Garishvili, F. Wei, M. J. Tannenbaum, G. S. Kyle, A. Taranenko, D. Isenhower, I. Ravinovich, Y. J. Kwon, H. Torii, Kyeongpil Lee, James Alexander, A. Toia, Masayasu Ishihara, M. Gonin, C. Pinkenburg, Kazushi Miki, J. Ide, Marcus Hohlmann, S. P. Sorensen, H. A. Gustafsson, R. Averbeck, Byung-Sik Hong, Brajesh K. Singh, N. Saito, L. A. Linden Levy, A. Bazilevsky, K. Karatsu, Y. J. Mao, Y. Tanaka, M. Heffner, Kenneth Francis Read, P. Mikeš, O. Chvala, C. Y. Chi, Yasutada Akiba, D. Kawall, C. Zhang, I. Younus, Seong H. Kim, T. L. Thomas, E. Mannel, Anne Marie Sickles, Alexandre Lebedev, H. Themann, D. J. Kim, J. H. Kang, C. Baumann, J. G. Lajoie, D. M. Lee, S. Kametani, S. Tarafdar, E. T. Atomssa, Agneta Oskarsson, D. Kotchetkov, J. S. Haggerty, C. P. Singh, J. Murata, Viktor Riabov, B. M. Johnson, John Matthew Durham, Y. Berdnikov, Gerd Joachim Kunde, G. R. Young, P. Chung, M. Bai, I. J. Choi, A. Kravitz, K. B. Lee, A. Isupov, K. Kiriluk, I. Shein, M. Mishra, Y. Onuki, Ryugo S. Hayano, J. Sziklai, A. Datta, E. H. Kim, L. Baksay, Brian Cole, K. Tanida, Eva Haslum, B. Lenzi, Vaclav Vrba, O. Dietzsch, K. Sedgwick, H. Valle, J. Hamblen, Klaus Johannes Reygers, Y. S. Lai, T. Ichihara, M. Kurosawa, R. Lacey, Rui Wei, Y. Riabov, A. Yu. Semenov, R. Granier de Cassagnac, Charles Maguire, A. Adare, W. Xie, D. Roach, K. M. Kijima, Takahiro Fusayasu, P. Rosnet, Dipanwita Dutta, A. K. Purwar, K. Fujiwara, Y. Watanabe, Alexander Malakhov, I. Nakagawa, Y. L. Yamaguchi, Kenta Shigaki, M. Nguyen, D. Silvermyr, P. Ruzicka, W. A. Zajc, Xingguo Li, M. J. Leitch, V. Pantuev, E. Kistenev, Julia Velkovska, L. S. Zolin, E. Leitner, W. J. Park, V. Baublis, J. Jia, A. Denisov, V. Cianciolo, J. Jin, Takafumi Niida, E. M. Takagui, Mate Csanad, Christopher Rosen, Sergey Fokin, Zhiying You, A. Yanovich, H. W. Van Hecke, R. Bennett, S. N. White, M. Kawashima, K. S. Sim, Zvi Hirsh Citron, A. S. Nyanin, Rachid Nouicer, M. Proissl, K. Nakano, K. Okada, W. E. Sondheim, M. Wysocki, D. Ivanischev, K. Boyle, P. A. Rukoyatkin, B. Meredith, Martin Purschke, C. A. Aidala, John Hill, Toru Sugitate, E. J. Desmond, F. Matathias, M. Finger, Kensuke Homma, E. Richardson, François Fleuret, M. Togawa, E. Vazquez-Zambrano, R. Yang, P. Constantin, J. Park, Jongmin Lee, B. Bassalleck, R. P. Pisani, E.J. Kim, M. Konno, Y. Tsuchimoto, C. L. Woody, Y. Nakamiya, G. Baksay, A. Morreale, S. Sawada, I. E. Yushmanov, D. Lynch, J. Ying, A. Franz, Z. Fraenkel, B. Sahlmueller, A. Berdnikov, Y. J. Kim, J. T. Mitchell, Y. Fukao, R. Seidl, C. M. Camacho, R. K. Choudhury, Prashant Shukla, Vladislav Manko, X. He, M. Slunečka, T. Hester, S. F. Pate, D. S. Jumper, Vladimir Samsonov, B. Azmoun, A. Král, T. Todoroki, S. Belikov, O. Drapier, P. Liebing, T. Dahms, N. A. Sparks, H. Al-Bataineh, C. Vale, S. Dairaku, Alexei Khanzadeev, E. Stenlund, I. V. Sourikova, Y. Aramaki, J. L. Nagle, Motoi Inaba, R. M. Wright, V. Papavassiliou, M. Oka, V. Peresedov, N. Kamihara, M. Virius, Robert Vertesi, K. S. Lee, A. Dion, C. Silvestre, C. H. Chen, Marisilvia Donadelli, V. Bumazhnov, T. V. Moukhanova, S. Nagamiya, M. Ouchida, Atsushi Taketani, A. Enokizono, A. Glenn, N. Means, K. S. Joo, H. En'yo, J. Koster, A. Rakotozafindrabe, R. Tanabe, Malik, Rushan Han, S. Esumi, D. Sharma, R. Ichimiya, H. Masui, A. A. Bickley, K. N. Barish, S. Sano, D. E. Fields, B. V. Jacak, M. McCumber, M. L. Brooks, S. Yokkaichi, J. P. Wood, J. Hanks, Sung Keun Park, Alexander Milov, N. N. Ajitanand, R. Luechtenborg, T. Engelmore, B. Love, Frank Ellinghaus, Susumu Oda, E. R. Kinney, A. Durum, D. P. Morrison, S. Campbell, K. Yamaura, A. G. Litvinenko, Tatsuya Chujo, I. Tserruya, Yu. Efremenko, V. Singh, Jen-Chieh Peng, J. E. Frantz, Inkyu Park, Xiong Wang, A. Kozlov, A. Veicht, R. Seto, I. Danchev, R. Pak, A. Drees, K. Sakashita, T. Csorgo, Jason Kamin, N. Grau, S. P. Stoll, Y. Goto, T. Kempel, Dong-Hun Kim, S. S.E. Rosendahl, G. Bunce, D. Jouan, Kenichi Imai, H. Qu, S. Bathe, M. Chiu, Hideki Hamagaki, K. Aoki, J. Rak, G. David, K. I. Hahn, C. A. Ogilvie, T. K. Hemmick, Yasuo Miake, K. Watanabe, H. Liu, K. Shoji, L. Kochenda, M. Issah, T. Horaguchi, and P. W. Stankus
Subjects: Physics, Azimuth, Pion, Correlation function, Plane (geometry), Oscillation, media_common.quotation_subject, General Physics and Astronomy, Eccentricity (behavior), Atomic physics, Relativistic Heavy Ion Collider, Event (particle physics), media_common
Abstract: Charged-pion-interferometry measurements were made with respect to the second- and third-order event plane for Au+Au collisions at sqrt[s_{NN}]=200 GeV. A strong azimuthal-angle dependence of the extracted Gaussian-source radii was observed with respect to both the second- and third-order event planes. The results for the second-order dependence indicate that the initial eccentricity is reduced during the medium evolution, which is consistent with previous results. In contrast, the results for the third-order dependence indicate that the initial triangular shape is significantly reduced and potentially reversed by the end of the medium evolution, and that the third-order oscillations are largely dominated by the dynamical effects from triangular flow.
Published: 2014
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15. Azimuthal-angle dependence of charged-pion-interferometry measurements with respect to second- and third-order event planes in Au+Au collisions at √[S(NN)]=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, M, Connors, P, Constantin, M, Csanád, T, Csörgő, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, R, Han, J, Hanks, E P, Hartouni, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, J, Ide, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D H, Kim, D J, Kim, E, Kim, E-J, Kim, S H, Kim, Y-J, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K, Lee, K B, Lee, K S, Lee, M J, Leitch, M A L, Leite, E, Leitner, B, Lenzi, X, Li, P, Liebing, L A, Linden Levy, T, Liška, A, Litvinenko, H, Liu, M X, Liu, B, Love, R, Luechtenborg, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, A C, Mignerey, P, Mikeš, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, T, Niida, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, N A, Sparks, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, T, Todoroki, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, J P, Wood, C L, Woody, R M, Wright, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: Charged-pion-interferometry measurements were made with respect to the second- and third-order event plane for Au+Au collisions at sqrt[s_{NN}]=200 GeV. A strong azimuthal-angle dependence of the extracted Gaussian-source radii was observed with respect to both the second- and third-order event planes. The results for the second-order dependence indicate that the initial eccentricity is reduced during the medium evolution, which is consistent with previous results. In contrast, the results for the third-order dependence indicate that the initial triangular shape is significantly reduced and potentially reversed by the end of the medium evolution, and that the third-order oscillations are largely dominated by the dynamical effects from triangular flow.
Published: 2014

16. Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Centrald+AuCollisions atsNN=200 GeV

Author: H. Qu, Hideki Hamagaki, K. Aoki, G. David, K. I. Hahn, Takahiro Fusayasu, Masamichi Ishihara, D. Silvermyr, W. J. Park, T. L. Thomas, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, Maya Hachiya Shimomura, Y. I. Makdisi, Christopher Rosen, A. Yanovich, Minghui Liu, M. Heffner, Kenneth Francis Read, M. Nguyen, K. Watanabe, K. Shoji, Beomkyu Kim, A. S. Nyanin, T. Ichihara, T. Horaguchi, P. W. Stankus, M. J. Tannenbaum, Jen-Chieh Peng, Charles Maguire, Hongfang Liu, D. E. Fields, H. Torii, Rachid Nouicer, M. Proissl, Inkyu Park, D. Kawall, H. Themann, B. V. Jacak, Xiong Wang, Z. Conesa del Valle, C. Baumann, T. Kempel, E. Kistenev, Y. J. Kwon, C. P. Singh, S. Rembeczki, M. McCumber, Gary Grim, Dong Jo Kim, K. V. Dharmawardane, J. Hanks, B. M. Johnson, Dennis Perepelitsa, P. Lichtenwalner, R. J. Petti, K. S. Joo, Gerd Joachim Kunde, Sung Keun Park, S. P. Sorensen, A. Veicht, Alice Mignerey, N. Apadula, K. S. Sim, N. N. Ajitanand, I. Shein, L. D'Orazio, J. Sziklai, O. Chvala, H. A. Gustafsson, S. Esumi, D. Sharma, I. Ravinovich, Takahiro Nakamura, R. Yang, R. Ichimiya, Brian Cole, M. Ouchida, D. McGlinchey, S. Taneja, J. Newby, K. A. Drees, Takao Sakaguchi, K. Sedgwick, M. Bai, Susumu Oda, K. Imai, P. Ružička, J. G. Lajoie, N. Means, Ajit Kumar Mohanty, A. Durum, A. D. Frawley, D. Hornback, T. A. Shibata, C. L. Silva, T. Sato, Viktor Riabov, K. Das, S. Huang, K. Yamaura, A. Taranenko, D. Isenhower, A. Toia, W. Holzmann, I. J. Choi, A. Kravitz, Kazushi Miki, Zhiying You, M. Gonin, R. Bennett, Brajesh K. Singh, M. Kawashima, Y. Onuki, Alexander Milov, I. Nakagawa, T. Engelmore, Vladimir Samsonov, O. Drapier, Frank Ellinghaus, M. Finger, Jan Rak, E. R. Kinney, R. Lacey, Aaron Angerami, D. P. Morrison, S. Campbell, W. A. Zajc, R. Granier de Cassagnac, A. Adare, Tatsuya Chujo, A. Sukhanov, K. Kurita, I. Tserruya, B. Azmoun, Y. J. Mao, A. Král, Yu. Efremenko, V. Baublis, V. Singh, B. Meredith, A. Denisov, V. Cianciolo, H. Pereira, Sergey Fokin, D. Watanabe, Tamas Ferenc Csorgo, A. Glenn, John Hill, M. Oka, Eunja Kim, M. D. Malik, M. Kurosawa, J. L. Nagle, Y. Nakamiya, D. Lynch, E. Vznuzdaev, K. S. Lee, Y. Morino, K. Karatsu, Toru Sugitate, G. Baksay, P. Liebing, Anne Marie Sickles, C. Silvestre, Martin Purschke, C. A. Aidala, Marisilvia Donadelli, V. Bumazhnov, R. Tanabe, A. Enokizono, J. Jin, A. Morreale, P. Chung, E. M. Takagui, R. S. Towell, R. Pak, Z. Fraenkel, I. Garishvili, B. Sahlmueller, F. Wei, R. K. Choudhury, Rushan Han, Y. J. Kim, François Fleuret, G. R. Young, S. Tarafdar, M. Naglis, J. T. Mitchell, C. Y. Chi, Jongmin Lee, R. Seidl, Vladislav Manko, S. N. White, A. Datta, Eva Haslum, Deepa Thomas, Taku Gunji, H. Gong, J. Seele, S. Belikov, F. Kajihara, Zvi Hirsh Citron, A. Taketani, C. Vale, D. S. Jumper, T. Dahms, K. Nakano, A. Kiss, X. He, Y. Tanaka, A. Deshpande, F. Matathias, Kensuke Homma, W. E. Sondheim, E. Richardson, E. Mannel, S. Dairaku, S. Butsyk, Y. Aramaki, Robert Vertesi, B. Bassalleck, Henner Buesching, D. Ivanischev, M. Konno, S. Zhou, K. B. Lee, A. Dion, J. Koster, M. I. Nagy, K. Boyle, Johannes Peter Wessels, M. Virius, Manabu Togawa, Steve Edwards, Y. Watanabe, S. D. Rolnick, D. Roach, K. M. Kijima, H. Masui, H. J. Moon, C. H. Chen, L. Baksay, I. Younus, Xingguo Li, H. Pei, Marcus Hohlmann, M. Slunečka, P. L. McGaughey, K. N. Barish, L. A. Linden Levy, S. Sano, M. L. Brooks, B. Love, Senta Greene, R. Seto, I. Danchev, A. T. Basye, B. Fadem, E. O'Brien, C. L. Woody, R. A. Soltz, M. Grosse Perdekamp, A. Caringi, O. Dietzsch, M. E. Connors, S. Bathe, Agneta Oskarsson, E. T. Atomssa, H. Valle, Y. Akiba, A. V. Kazantsev, S. Nagamiya, Dipanwita Dutta, Vaclav Vrba, Klaus Johannes Reygers, K. Tanida, L. Tomášek, T. Jones, Rui Wei, Peter Christiansen, Julia Velkovska, K. Fujiwara, I. V. Sourikova, D. Winter, Y. L. Yamaguchi, M. Rosati, D. Yu Peressounko, H. W. Van Hecke, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, Jiangyong Jia, Y. Goto, Jun Kikuchi, T. Murakami, D. Kleinjan, S. Sawada, J. Ying, A. Franz, G. S. Kyle, Y. Fukao, James Alexander, T. Hester, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, S. Yokkaichi, Dmitry Blau, N. Grau, Alexandre Lebedev, E. J. Desmond, Y. Ikeda, D. M. Lee, E. Vazquez-Zambrano, C. Pinkenburg, Aram Kim, Motoi Inaba, G. Roche, R. M. Wright, J. H. Kang, J. S. Haggerty, M. Kasai, Y. Tsuchimoto, V. S. Pantuev, Y. Iwanaga, C. Oakley, A. Drees, Y. S. Lai, I. E. Yushmanov, Alexei Khanzadeev, K. Sakashita, J. Hamblen, E. Stenlund, Jason Kamin, J. B. Choi, M. Csanad, S. P. Stoll, M. Nihashi, S. S.E. Rosendahl, G. Bunce, K. Okada, D. Jouan, H. En'yo, M. Chiu, M. J. Leitch, C. A. Ogilvie, T. K. Hemmick, J. M. Durham, Yasuo Miake, L. Kochenda, M. Issah, J. H. Bhom, R. P. Pisani, T. V. Moukhanova, Prashant Shukla, S. F. Pate, J. E. Frantz, J. Murata, Ke. Nakamura, H. Al-Bataineh, V. Papavassiliou, M. K. Dayananda, M. Wysocki, B. Komkov, Norio Saito, Tsutomu Mibe, M. A. L. Leite, R. Belmont, J. S. Kapustinsky, V. Babintsev, X. Jiang, and S. W. Nam
Subjects: Physics, Particle physics, Large Hadron Collider, 010308 nuclear & particles physics, Hadron, Elliptic flow, General Physics and Astronomy, Parton, 01 natural sciences, Nuclear physics, 0103 physical sciences, Quadrupole, Multiplicity (chemistry), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Anisotropy
Abstract: The PHENIX collaboration at the Relativistic Heavy Ion Collider (RHIC) reports measurements of azimuthal dihadron correlations near midrapidity in d + Au collisions at root s(NN) = 200 GeV. These measurements complement recent analyses by experiments at the Large Hadron Collider (LHC) involving central p + Pb collisions at root s(NN) = 5.02 TeV, which have indicated strong anisotropic long-range correlations in angular distributions of hadron pairs. The origin of these anisotropies is currently unknown. Various competing explanations include parton saturation and hydrodynamic flow. We observe qualitatively similar, but larger, anisotropies in d + Au collisions at RHIC compared to those seen in p + Pb collisions at the LHC. The larger extracted upsilon(2) values in d + Au are consistent with expectations from hydrodynamic calculations owing to the larger expected initial-state eccentricity compared with that from p + Pb collisions. When both are divided by an estimate of the initial-state eccentricity the scaled anisotropies follow a common trend with multiplicity that may extend to heavy ion data at RHIC and the LHC, where the anisotropies are widely thought to arise from hydrodynamic flow.
Published: 2013
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17. Nuclear Modification ofψ′,χc, andJ/ψProduction ind+AuCollisions atsNN=200 GeV

Author: K. Watanabe, A. V. Kazantsev, M. Gonin, Maya Hachiya Shimomura, Y. I. Makdisi, M. Chiu, C. A. Ogilvie, Charles Maguire, T. K. Hemmick, J. M. Durham, Yasuo Miake, K. Shoji, L. Kochenda, M. Issah, J. Newby, M. J. Tannenbaum, E. Kistenev, H. Torii, L. Tomášek, A. Sukhanov, K. Kurita, B. Azmoun, Y. J. Mao, A. Král, P. Lichtenwalner, T. Murakami, D. Kawall, X. He, H. A. Gustafsson, H. Pereira, D. Hornback, T. Horaguchi, S. Rembeczki, P. W. Stankus, Y. Nakamiya, D. Lynch, H. Themann, Y. Morino, K. S. Sim, V. S. Pantuev, A. Taranenko, Y. Aramaki, I. Ravinovich, T. C. Awes, Kazushi Miki, P. Ružička, K. A. Drees, B. Meredith, M. Oka, Robert Vertesi, Kyoichiro Ozawa, T. Liška, J. S. Bok, A. Dion, M. I. Nagy, G. Baksay, S. Sawada, K. S. Lee, Jun Kikuchi, Y. Tanaka, Brajesh K. Singh, R. Pak, E. Mannel, Alice Mignerey, J. Ying, A. Franz, Viktor Riabov, John Hill, R. Yang, Johannes Peter Wessels, M. Nihashi, Marisilvia Donadelli, V. Bumazhnov, L. D'Orazio, Toru Sugitate, Gerd Joachim Kunde, Aaron Angerami, M. Bai, S. Taneja, C. Baumann, P. Liebing, J. Koster, M. Slunečka, K. S. Joo, S. P. Sorensen, I. Shein, H. J. Moon, P. L. McGaughey, D. Watanabe, W. A. Zajc, S. Tarafdar, M. Ouchida, L. Baksay, François Fleuret, K. Imai, J. Hamblen, O. Chvala, M. D. Malik, E. Vznuzdaev, V. Baublis, B. Sahlmueller, M. K. Dayananda, N. Apadula, A. Denisov, Takao Sakaguchi, C. P. Singh, K. Karatsu, K. Sedgwick, K. Das, H. Pei, V. Cianciolo, Takahiro Fusayasu, M. Wysocki, Eva Haslum, Y. J. Kim, N. Means, R. P. Pisani, D. Silvermyr, R. Tanabe, A. D. Frawley, J. G. Lajoie, J. E. Frantz, Anne Marie Sickles, A. Deshpande, Senta Greene, Prashant Shukla, Beomkyu Kim, W. J. Park, Christopher Rosen, S. Esumi, Sergey Fokin, Zhiying You, A. Yanovich, R. Bennett, D. Sharma, B. M. Johnson, S. F. Pate, I. J. Choi, M. Kawashima, Ke. Nakamura, A. T. Basye, R. Ichimiya, H. Masui, S. N. White, Deepa Thomas, J. Murata, S. Huang, F. Matathias, A. Kravitz, Masamichi Ishihara, K. B. Lee, H. Al-Bataineh, M. Finger, T. Kempel, Zvi Hirsh Citron, Dennis Perepelitsa, Martin Purschke, K. Nakano, Gary Grim, Jongmin Lee, C. A. Aidala, Kensuke Homma, W. Holzmann, E. Richardson, Minghui Liu, B. Fadem, E. O'Brien, R. J. Petti, W. E. Sondheim, Y. Fukao, K. V. Dharmawardane, R. A. Soltz, Dmitry Blau, V. Papavassiliou, D. Ivanischev, Y. Watanabe, Rushan Han, K. Boyle, M. Heffner, Kenneth Francis Read, T. Ichihara, O. Dietzsch, M. Grosse Perdekamp, E. T. Atomssa, G. R. Young, H. Valle, E. J. Desmond, T. L. Thomas, D. Roach, K. M. Kijima, T. Hester, Vladimir Samsonov, A. Morreale, I. Younus, M. E. Connors, A. Taketani, Z. Fraenkel, Dipanwita Dutta, K. Okada, D. S. Jumper, Y. Onuki, B. Bassalleck, E. Vazquez-Zambrano, T. Dahms, R. K. Choudhury, J. Sziklai, Jan Rak, S. Dairaku, H. Qu, M. Kasai, Ryugo S. Hayano, Xingguo Li, B. Love, Julia Velkovska, M. Konno, Y. Tsuchimoto, R. Lacey, Y. Iwanaga, Tamas Ferenc Csorgo, H. En'yo, R. Granier de Cassagnac, Hideki Hamagaki, K. Aoki, G. David, M. Rosati, K. I. Hahn, J. T. Mitchell, I. E. Yushmanov, J. L. Nagle, Y. Riabov, Kenta Shigaki, M. Nguyen, Alexei Khanzadeev, Brian Cole, A. Adare, N. Grau, R. Seidl, Vladislav Manko, M. J. Leitch, E. Stenlund, J. B. Choi, M. Kurosawa, S. Belikov, A. S. Nyanin, K. Tanida, T. Jones, Peter Christiansen, Motoi Inaba, R. M. Wright, Rachid Nouicer, J. H. Bhom, C. Vale, Jiangyong Jia, M. Proissl, T. V. Moukhanova, D. Winter, M. Naglis, Y. Goto, D. Yu Peressounko, C. L. Woody, D. Kleinjan, A. Caringi, Y. J. Kwon, R. Seto, I. V. Sourikova, I. Danchev, J. Jin, E. M. Takagui, K. N. Barish, R. S. Towell, I. Garishvili, F. Wei, S. Sano, C. Y. Chi, M. L. Brooks, X. Jiang, S. W. Nam, K. Fujiwara, Y. L. Yamaguchi, G. S. Kyle, K. Sakashita, Jason Kamin, M. Csanad, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, D. Jouan, Aram Kim, C. Oakley, A. Drees, James Alexander, H. W. Van Hecke, S. Bathe, Agneta Oskarsson, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, Y. Akiba, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, Alexandre Lebedev, Rui Wei, D. M. Lee, A. Kiss, Sung Keun Park, Henner Buesching, N. N. Ajitanand, Steve Edwards, B. Komkov, Takahiro Nakamura, D. McGlinchey, Susumu Oda, J. H. Kang, A. Durum, Marcus Hohlmann, J. S. Haggerty, Norio Saito, Tsutomu Mibe, L. A. Linden Levy, M. A. L. Leite, Catherine Micaela Silvestre, K. Yamaura, R. Belmont, Hongfang Liu, D. E. Fields, J. S. Kapustinsky, V. Babintsev, Y. S. Lai, B. V. Jacak, Jen-Chieh Peng, Y. Ikeda, M. McCumber, C. Pinkenburg, Inkyu Park, G. Roche, Xiong Wang, Z. Conesa del Valle, J. Hanks, Dong Jo Kim, S. Yokkaichi, A. Veicht, Alexander Milov, I. Nakagawa, T. Engelmore, O. Drapier, Frank Ellinghaus, E. R. Kinney, D. P. Morrison, S. Campbell, Tatsuya Chujo, I. Tserruya, Yu. Efremenko, V. Singh, A. Glenn, Eunja Kim, M. Virius, Manabu Togawa, C. H. Chen, A. Enokizono, P. Chung, A. Datta, Taku Gunji, H. Gong, J. Seele, F. Kajihara, S. Butsyk, S. Zhou, S. D. Rolnick, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, T. Sato, D. Isenhower, and A. Toia
Subjects: Physics, Meson, 010308 nuclear & particles physics, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Super Proton Synchrotron, Charged particle, Nuclear physics, Deuterium, 0103 physical sciences, Yield ratio, High Energy Physics::Experiment, Multiplicity (chemistry), Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We present results for three charmonia states (psi' chi(c), and J/ psi) in d + Au collisions at vertical bar y vertical bar < 0.35 and root s(NN) = 200 GeV. We find that the modification of the psi' yield relative to that of the J/ psi scales approximately with charged particle multiplicity at midrapidity across p + A, d + Au, and A + A results from the Super Proton Synchrotron and the Relativistic Heavy Ion Collider. In large-impact-parameter collisions we observe a similar suppression for the psi' and J/ psi, while in small-impact-parameter collisions the more weakly bound psi' is more strongly suppressed. Owing to the short time spent traversing the Au nucleus, the larger psi' suppression in central events is not explained by an increase of the nuclear absorption owing to meson formation time effects.
Published: 2013
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18. Medium Modification of Jet Fragmentation inAu+AuCollisions atsNN=200 GeVMeasured in Direct Photon-Hadron Correlations

Author: K. Dehmelt, M. Kurosawa, Jen-Chieh Peng, F. Matathias, L. D'Orazio, Y. J. Mao, S. Kametani, Kensuke Homma, E. Richardson, Saskia Mioduszewski, P. Constantin, S. Miyasaka, Takao Sakaguchi, J. H. Kang, J. S. Haggerty, S. R. Lee, S. Chernichenko, B. Meredith, B. Bassalleck, C. Klein-Boesing, John Hill, Inkyu Park, P. D. Barnes, Jongmin Lee, A. D. Frawley, T. Tabaru, M. Konno, Hongfang Liu, Toru Sugitate, D. E. Fields, S. Huang, C. Silvestre, L. D. Isenhower, B. V. Jacak, B. Lewis, B. Komkov, Xiong Wang, O. Dietzsch, S. H. Aronson, J. Jin, E. M. Takagui, H. Valle, M. McCumber, Dong Jo Kim, W. Holzmann, Y. S. Lai, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, K. Sakashita, Herve Borel, D. Lynch, J. Hanks, Hiroaki Ohnishi, K. B. Lee, François Fleuret, R. A. Soltz, Dipanwita Dutta, Y. Nakamiya, D. Kotov, Norio Saito, Tsutomu Mibe, M. A. L. Leite, Y. Tsuchimoto, C. Gal, Y. Miyachi, Sung Keun Park, Tomoya Tsuji, M. Mendoza, S. N. White, N. N. Ajitanand, A. Taketani, D. S. Jumper, Takahiro Nakamura, Julia Velkovska, R. Tanabe, D. Layton, D. McGlinchey, Y. Ikeda, Maya Hachiya Shimomura, R. S. Hollis, Susumu Oda, A. Durum, J. Egdemir, Zvi Hirsh Citron, Y. I. Makdisi, M. Grosse Perdekamp, S. H. Lim, K. Yamaura, K. O. Eyser, A. K. Purwar, K. Fujiwara, K. Nakano, J. G. Boissevain, R. Belmont, M. Stepanov, G. Baksay, Jason Kamin, M. B. Deaton, A. Sen, Masashi Kaneta, V. L. Rykov, T. Dahms, K. B. Kim, L. Ding, W. E. Sondheim, J. S. Kapustinsky, M. E. Connors, D. Ivanischev, V. Babintsev, S. P. Stoll, V. S. Pantuev, M. Sano, I. Tserruya, Y. L. Yamaguchi, D. Roach, K. M. Kijima, Yu. Efremenko, Tae-Yeon Lee, Martin Purschke, C. A. Aidala, S. Tarafdar, R. Akimoto, C. Pinkenburg, M. Rosati, W. C. Chang, R. Vértesi, K. Boyle, P. A. Rukoyatkin, C. R. Cleven, V. Singh, Y. Tanaka, J. Hamblen, C. Haegemann, Y. Inoue, C. Baumann, B. Sahlmueller, K. Hashimoto, E. Leitner, I. Ravinovich, M. Tomášek, G. S. Kyle, S. S.E. Rosendahl, G. Bunce, Y. J. Kim, M. J. Tannenbaum, H. Torii, Junji Tojo, James Alexander, J. Zimanyi, G. Roche, B. Love, A. Yu. Semenov, Rushan Han, S. Butsyk, Vladimir Samsonov, A. A. Vinogradov, E. Mannel, M. S. Daugherity, C. P. Singh, T. Ichihara, B. M. Johnson, Osamu Jinnouchi, M. Javani, Xingguo Li, Peter Christiansen, D. Winter, D. Yu Peressounko, Matthew G. Reuter, Atsushi Takahara, K. A. Drees, K. Karatsu, Filip Krizek, J. Gosset, Y. Hori, Anne Marie Sickles, Y. Nagata, Takahiro Fusayasu, R. Averbeck, E. C. Aschenauer, A. Churyn, Byung-Sik Hong, A. Bazilevsky, D. Mukhopadhyay, E. Tennant, S. Rembeczki, R. J. Petti, K. Okada, H. W. Van Hecke, J. T. Mitchell, D. Jouan, Philippe Rosnet, M. Bai, T. Kempel, Dong-Hun Kim, Eva Haslum, B. Lenzi, A. Morreale, S. Kaneti, R. Seidl, Vladislav Manko, S. Belikov, S. Baumgart, H. En'yo, M. J. Leitch, Christine Nattrass, T. Todoroki, Jiangyong Jia, C. L. Woody, A. Berdnikov, Y. Goto, A. Isupov, C. Suire, M. Naglis, Alexander Malakhov, Z. Fraenkel, H. J. Moon, F. Staley, L. Baksay, A. Glenn, J. Sziklai, D. Silvermyr, L. S. Zolin, Alexandre Lebedev, A. G. Litvinenko, D. M. Lee, K. Gainey, J. E. Frantz, M. Slunečka, Zhiying You, D. Kotchetkov, R. Bennett, C. A. Ogilvie, Brian Cole, Minghui Liu, Tamas Ferenc Csorgo, S. Afanasiev, A. Ster, W. J. Park, Eunja Kim, K. Watanabe, Christopher Rosen, R. S. Towell, R. K. Choudhury, S. P. Sorensen, D. Kleinjan, A. Yanovich, Dylan Walker, J. P. Wood, P. Tarján, I. Garishvili, Akio Kiyomichi, F. Wei, J. Klatsky, X. Bing, O. Chvala, M. Kawashima, S. Yokkaichi, K. Kiriluk, M. Finger, S. Dairaku, T. K. Hemmick, Seong H. Kim, J. M. Durham, E. H. Kim, Dmitry Blau, B. Azmoun, A. Král, M. J. Kweon, X. Jiang, Yasuo Miake, Masayasu Ishihara, O. Zaudtke, K. Shoji, G. R. Young, C. Vale, B. S. Chang, J. Newby, A. Kozlov, Alexander Milov, M. Heffner, Kyeongpil Lee, R. Seto, I. Nakagawa, R. Luechtenborg, Tomofumi Nagae, J. L. Nagle, P. Castera, Kenneth Francis Read, A. Kiss, M. Soumya, P. W. Stankus, Young-Ki Kim, N. Kurihara, K. Haruna, H. Pei, E. J. Desmond, T. Engelmore, N. Novitzky, J. G. Lajoie, J. Ide, Z. Yasin, T. Hachiya, Henner Buesching, O. Drapier, Frank Ellinghaus, M. Virius, E. T. Atomssa, L. Kochenda, M. Issah, M. Togawa, E. Vazquez-Zambrano, J. Klay, M. K. Lee, J. S. Kang, Steve Edwards, I. Danchev, S. Takagi, M. Oka, E. R. Kinney, Tadaaki Isobe, C. Y. Chi, A. Nederlof, J. Park, D. Hornback, D. P. Morrison, P. Kline, K. S. Lee, K. Das, H. J. Kim, A. Rakotozafindrabe, A. Kravitz, E. P. Hartouni, S. Campbell, M. Gonin, D. Kawall, B. H. Kang, Senta Greene, V. E. Semenov, K. N. Barish, Y. Komatsu, H. Themann, S. Wolin, R. Pak, C. H. Chen, M. Kasai, N. Kamihara, Steven E. Skutnik, K. S. Sim, V. Dzhordzhadze, M. I. Nagy, Y. Kwon, A. Garishvili, X. Gong, Marcus Hohlmann, V. I. Kochetkov, P. L. McGaughey, A. Taranenko, S. Sano, P. Liebing, H. Al-Ta'Ani, A. Sukhanov, K. Kurita, D. Watanabe, L. A. Linden Levy, Tatsuya Chujo, H. Pereira, A. T. Basye, I. V. Sourikova, I. E. Yushmanov, A. Manion, B. E. Norman, R. Armendariz, Y. Morino, M. Chiu, J. Murata, Byoungchoo Park, A. Drees, R. Yang, H. Qu, H. Hiejima, K. S. Joo, S. Taneja, Kazushi Miki, T. Horaguchi, Brajesh K. Singh, S. Bathe, Gerd Joachim Kunde, Charles Maguire, L. Guo, Alexei Khanzadeev, Agneta Oskarsson, Shinichi Masumoto, S. Choi, B. Fadem, E. O'Brien, C. O. Kim, I. Shein, E. Stenlund, J. B. Choi, H. Sakata, J. Kubart, A. V. Kazantsev, M. Vargyas, M. L. Brooks, Hideki Hamagaki, K. Aoki, G. David, K. Imai, K. I. Hahn, Y. Onuki, M. D. Malik, X. He, Y. Berdnikov, S. H. Lee, Y. Akiba, C. McKinney, E. Vznuzdaev, K. Sedgwick, M. Mishra, S. Nagamiya, Dipak Kumar Mishra, Kiyoshi Tanida, O. O. Omiwade, E. Kistenev, L. Tomášek, N. Apadula, P. Mikeš, Alberto Baldisseri, Mihael Makek, Jan Rak, M. Ouchida, N. Means, R. Lacey, Y. Aramaki, V. Peresedov, R. Granier de Cassagnac, A. Adare, Vaclav Vrba, Klaus Johannes Reygers, Rui Wei, J. Asai, H. Harada, J. Sun, J. Koster, L. Patel, A. Deshpande, T. V. Moukhanova, S. Batsouli, Shingo Sakai, T. L. Thomas, A. Vossen, H. Masui, A. K. Dubey, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, A. A. Bickley, Jun Kikuchi, A. Veicht, Y. Watanabe, Ryugo S. Hayano, A. Romana, I. Younus, Y. Riabov, Kenta Shigaki, M. Nguyen, A. S. Nyanin, S. Esumi, D. Sharma, Rachid Nouicer, A. N. Zelenski, M. Proissl, R. Ichimiya, A. Soldatov, C. Zhang, A. Hadj Henni, Beomkyu Kim, H. Å Gustafsson, Wei Xie, P. Ružička, I. J. Choi, L. Aphecetche, A. Dion, Johannes Peter Wessels, Viktor Riabov, K. V. Dharmawardane, H. Iinuma, A. P.T. Palounek, Aaron Angerami, W. A. Zajc, V. Baublis, A. Denisov, Yuki Watanabe, V. Cianciolo, Y. Tomita, Sergey Fokin, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, T. Sato, D. Isenhower, A. Toia, L. Mašek, H. Kanou, Taku Gunji, H. Gong, J. Seele, F. Kajihara, H. Delagrange, S. Zhou, C. M. Camacho, S. D. Rolnick, Prashant Shukla, S. F. Pate, J. L. Charvet, Ke. Nakamura, T. E. Miller, H. Al-Bataineh, A. Enokizono, P. Chung, J. Imrek, S. Motschwiller, Susumu Sato, W. S. Emam, V. Papavassiliou, Sébastien Gadrat, A. Datta, H. Asano, M. Mitrovski, Takafumi Niida, Bum-Hoon Lee, M. Wysocki, B. Bannier, T. Murakami, Robert F. Hobbs, Debashish Pal, S. Sawada, J. Ying, A. Franz, R. Reynolds, M. Sarsour, Mate Csanad, A. Iordanova, M. Nihashi, David D'Enterria, R. P. Pisani, M. N. Wagner, Y. Fukao, A. Shevel, T. Hester, N. A. Sparks, V-N. Tram, N. Grau, M. Leitgab, Motoi Inaba, R. M. Wright, J. Chiba, and Alice Mignerey
Subjects: Physics, Energy loss, Photon, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, 7. Clean energy, 01 natural sciences, Nuclear physics, Fragmentation (mass spectrometry), 0103 physical sciences, Fragmentation function, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract: The jet fragmentation function is measured with direct photon-hadron correlations in p + p and Au + Au collisions at root S-NN = 200 GeV. The P-T of the photon is an excellent approximation to the initial P-T of the jet and the ratio Z(T) = P-T(h)/P-T(gamma) is used as a proxy for the jet fragmentation function. A statistical subtraction is used to extract the direct photon-hadron yields in Au + Au collisions while a photon isolation cut is applied in p + p. I-AA, the ratio of hadron yield opposite the photon in Au + Au to that in p + p, indicates modification of the jet fragmentation function. Suppression, most likely due to energy loss in the medium, is seen at high Z(T). The associated hadron yield at low Z(T) is enhanced at large angles. Such a trend is expected from redistribution of the lost energy into increased production of low-momentum particles.
Published: 2013
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19. Nuclear modification of ψ', χc, and J/ψ production in d+Au collisions at sqrt[s(NN)]=200 GeV

Author: A, Adare, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, A, Angerami, K, Aoki, N, Apadula, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, J H, Bhom, D S, Blau, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, A, Caringi, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, J B, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, Z, Conesa del Valle, M, Connors, M, Csanád, T, Csörgő, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, M K, Dayananda, A, Denisov, A, Deshpande, E J, Desmond, K V, Dharmawardane, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, L, D'Orazio, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, G, Grim, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, R, Han, J, Hanks, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, M, Issah, D, Ivanischev, Y, Iwanaga, B V, Jacak, J, Jia, X, Jiang, J, Jin, B M, Johnson, T, Jones, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, M, Kasai, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, J, Kikuchi, A, Kim, B I, Kim, D J, Kim, E-J, Kim, Y-J, Kim, E, Kinney, Á, Kiss, E, Kistenev, D, Kleinjan, L, Kochenda, B, Komkov, M, Konno, J, Koster, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K S, Lee, M J, Leitch, M A L, Leite, X, Li, P, Lichtenwalner, P, Liebing, L A, Linden Levy, T, Liška, H, Liu, M X, Liu, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, D, McGlinchey, N, Means, B, Meredith, Y, Miake, T, Mibe, A C, Mignerey, K, Miki, A, Milov, J T, Mitchell, A K, Mohanty, H J, Moon, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, T, Murakami, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, K R, Nakamura, T, Nakamura, K, Nakano, S, Nam, J, Newby, M, Nguyen, M, Nihashi, R, Nouicer, A S, Nyanin, C, Oakley, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, D, Perepelitsa, D Yu, Peressounko, R, Petti, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, H, Qu, J, Rak, I, Ravinovich, K F, Read, S, Rembeczki, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, H, Themann, D, Thomas, T L, Thomas, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, C L, Woody, R M, Wright, M, Wysocki, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, and S, Zhou
Abstract: We present results for three charmonia states (ψ', χc, and J/ψ) in d+Au collisions at |y|0.35 and sqrt[s(NN)]=200 GeV. We find that the modification of the ψ' yield relative to that of the J/ψ scales approximately with charged particle multiplicity at midrapidity across p+A, d+Au, and A+A results from the Super Proton Synchrotron and the Relativistic Heavy Ion Collider. In large-impact-parameter collisions we observe a similar suppression for the ψ' and J/ψ, while in small-impact-parameter collisions the more weakly bound ψ' is more strongly suppressed. Owing to the short time spent traversing the Au nucleus, the larger ψ' suppression in central events is not explained by an increase of the nuclear absorption owing to meson formation time effects.
Published: 2013

20. Evolution ofπ0Suppression inAu+AuCollisions fromsNN=39to 200 GeV

Author: Atsushi Takahara, D. Kotov, Jason Kamin, S. P. Stoll, M. Stepanov, D. Jouan, L. Tomášek, Charles Maguire, K. A. Drees, S. Choi, X. He, Alexander Milov, S. Tarafdar, M. Rosati, T. Murakami, Kiyoshi Tanida, I. Ravinovich, L. Patel, I. Nakagawa, Young-Ki Kim, T. Engelmore, N. Novitzky, E. Kistenev, T. Ichihara, K. B. Lee, Alice Mignerey, J. Klatsky, Eva Haslum, L. D'Orazio, S. Miyasaka, Ryugo S. Hayano, Y. Riabov, T. C. Awes, Kyoichiro Ozawa, M. S. Daugherity, H. A. Gustafsson, T. Csörgő, O. Drapier, Takahiro Fusayasu, E. R. Kinney, C. P. Singh, Alexander Malakhov, Y. Miyachi, D. P. Morrison, Y. Aramaki, V. Peresedov, M. Bai, S. Campbell, Marisilvia Donadelli, V. Bumazhnov, Martin Purschke, B. H. Kang, J. Sun, Takao Sakaguchi, A. Sen, Kenta Shigaki, D. E. Fields, B. M. Johnson, Filip Krizek, E. C. Aschenauer, R. J. Petti, Robert Vertesi, B. V. Jacak, Y. Ikeda, Jiangyong Jia, Y. Goto, D. Silvermyr, A. Isupov, E. J. Mannel, H. Al-Ta'Ani, Tatsuya Chujo, L. S. Zolin, A. D. Frawley, A. S. Nyanin, S. Afanasiev, L. Ding, Rachid Nouicer, A. N. Zelenski, M. Proissl, A. Ster, S. Sawada, J. Ying, A. Franz, Y. Fukao, Y. Tanaka, G. Roche, J. Sziklai, V. S. Pantuev, M. Sano, Zhiying You, M. Gonin, M. Javani, S. Huang, D. Kleinjan, R. Reynolds, Brian Cole, M. McCumber, A. Dion, R. Akimoto, Senta Greene, M. I. Nagy, S. Masumoto, J. Koster, P. L. McGaughey, Jen-Chieh Peng, J. E. Frantz, A. Yanovich, M. Finger, S. Dairaku, Viktor Riabov, D. Roach, K. M. Kijima, Inkyu Park, D. Kawall, R. K. Choudhury, K. S. Joo, B. Fadem, C. Pinkenburg, E. O'Brien, M. Virius, E. T. Atomssa, C. L. Woody, A. Berdnikov, K. V. Dharmawardane, Xiong Wang, Dong Jo Kim, A. Taranenko, H. J. Moon, H. Pei, Maya Hachiya Shimomura, R. S. Hollis, Y. I. Makdisi, H. Themann, S. Baumgart, J. Murata, Gerd Joachim Kunde, Y. Nakamiya, Y. Tsuchimoto, M. Soumya, T. Horaguchi, Brajesh K. Singh, I. Shein, Tomoya Tsuji, M. Mendoza, O. Dietzsch, S. H. Lee, S. N. White, N. Apadula, H. J. Kim, C. H. Chen, H. Iinuma, T. Hester, E. M. Takagui, R. S. Towell, I. Tserruya, Yu. Efremenko, A. Vossen, A. Veicht, V. Singh, M. J. Tannenbaum, H. Torii, K. Hashimoto, C. Gal, J. Hanks, Sung Keun Park, N. N. Ajitanand, Takahiro Nakamura, I. Garishvili, F. Wei, A. Manion, Bum-Hoon Lee, M. Wysocki, B. Bannier, M. J. Leitch, Julia Velkovska, Zvi Hirsh Citron, K. Nakano, Minghui Liu, K. Sedgwick, A. Garishvili, D. McGlinchey, S. Esumi, Vladimir Samsonov, Christine Nattrass, S. Bathe, M. Chiu, Beomkyu Kim, T. Todoroki, D. Sharma, C. A. Ogilvie, Kisung Lee, T. K. Hemmick, J. M. Durham, E. Tennant, Yasuo Miake, Aaron Angerami, K. N. Barish, A. Durum, Y. Komatsu, Jongmin Lee, Kenneth Francis Read, Mihael Makek, A. Deshpande, K. B. Kim, F. Fleuret, Prashant Shukla, W. E. Sondheim, M. Issah, D. Ivanischev, S. F. Pate, I. V. Sourikova, A. Glenn, Eunja Kim, A. Sukhanov, S. Wolin, R. Pak, B. Azmoun, A. Král, H. Pereira, N. Grau, S. Yokkaichi, K. Okada, Ke. Nakamura, C. Y. Chi, W. A. Zajc, Byoungchoo Park, Kazuyoshi Kurita, M. Kasai, Y. J. Kwon, A. Drees, V. Baublis, Y. Watanabe, P. A. Rukoyatkin, A. Denisov, B. Meredith, Tomofumi Nagae, J. L. Nagle, V. Cianciolo, P. Kline, P. Castera, M. Leitgab, C. O. Kim, Atsushi Taketani, M. Ouchida, I. Younus, Sergey Fokin, Motoi Inaba, I. J. Choi, H. Qu, J. S. Kang, S. Motschwiller, M. Vargyas, M. L. Brooks, John Hill, J. H. Kang, J. S. Haggerty, S. R. Lee, M. Sarsour, Mate Csanad, S. P. Sorensen, V. Papavassiliou, A. Iordanova, Toru Sugitate, B. Lewis, B. Love, X. Bing, O. Chvala, B. Sahlmueller, Y. J. Kim, M. Nihashi, J. G. Lajoie, A. G. Litvinenko, T. Hachiya, Y. S. Lai, D. Watanabe, E. Vznuzdaev, R. P. Pisani, R. Seto, Kensuke Homma, Dmitry Blau, E. Richardson, E. J. Desmond, K. I. Hahn, E. Vazquez-Zambrano, A. Nederlof, B. Bassalleck, I. E. Yushmanov, L. Guo, K. Boyle, J. T. Mitchell, Alexei Khanzadeev, E. Stenlund, J. B. Choi, R. Seidl, Vladislav Manko, M. Slunečka, Dipak Kumar Mishra, C. Vale, Christine Angela Aidala, T. V. Moukhanova, R. A. Soltz, M. Grosse Perdekamp, Taku Gunji, M. E. Connors, Peter Christiansen, D. Winter, D. Yu Peressounko, S. D. Rolnick, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, C. McKinney, S. Nagamiya, Vaclav Vrba, Rui Wei, D. Isenhower, K. O. Eyser, Y. L. Yamaguchi, M. Kurosawa, A. Enokizono, J. Imrek, H. W. Van Hecke, A. Datta, H. Asano, A. Kiss, Jan Rak, Henner Buesching, R. Lacey, S. Butsyk, X. Gong, R. Granier de Cassagnac, A. Adare, L. A. Linden Levy, M. Tomášek, G. S. Kyle, James Alexander, K. Karatsu, Byung-Sik Hong, A. Bazilevsky, Alexandre Lebedev, Y. Hori, Anne Marie Sickles, D. M. Lee, K. Gainey, X. Jiang, D. Kotchetkov, B. Komkov, Norio Saito, Tsutomu Mibe, M. A. L. Leite, S. H. Lim, R. Belmont, J. S. Kapustinsky, V. Babintsev, S. Edwards, K. S. Sim, R. Yang, S. Taneja, Hideki Hamagaki, K. Aoki, G. David, K. Watanabe, Yosuke Watanabe, K. Shoji, P. W. Stankus, T. Kempel, S. Kaneti, and A. V. Kazantsev
Subjects: Physics, Nuclear physics, Range (particle radiation), Pi, Exponent, General Physics and Astronomy, Parton, Impact parameter, Atomic physics, Nuclear Experiment, Relativistic Heavy Ion Collider, Power law, Spectral line
Abstract: Neutral-pion pi(0) spectra were measured at midrapidity (vertical bar y vertical bar < 0.35) in Au + Au collisions at root s(NN) = 39 and 62.4 GeV and compared with earlier measurements at 200 GeV in a transverse-momentum range of 1 < p(T) < 10 GeV/c. The high-p(T) tail is well described by a power law in all cases, and the powers decrease significantly with decreasing center-of-mass energy. The change of powers is very similar to that observed in the corresponding spectra for p + p collisions. The nuclear modification factors (RAA) show significant suppression, with a distinct energy, centrality, and p(T) dependence. Above p(T) = 7 GeV/c, R-AA is similar for root sNN = 62.4 and 200 GeV at all centralities. Perturbative-quantum-chromodynamics calculations that describe R-AA well at 200 GeV fail to describe the 39 GeV data, raising the possibility that, for the same p(T) region, the relative importance of initial-state effects and soft processes increases at lower energies. The p(T) range where pi(0) spectra in central Au + Au collisions have the same power as in p + p collisions is approximate to 5 and 7 GeV/c for root sNN = 200 and 62.4 GeV, respectively. For the root sNN = 39 GeV data, it is not clear whether such a region is reached, and the x(T) dependence of the x(T)-scaling power-law exponent is very different from that observed in the root sNN = 62 and 200 GeV data, providing further evidence that initial-state effects and soft processes mask the in-medium suppression of hardscattered partons to higher p(T) as the collision energy decreases.
Published: 2012
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21. Evolution of π(0) suppression in Au+Au collisions from √(s(NN))=39 to 200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, R, Akimoto, H, Al-Ta'ani, J, Alexander, A, Angerami, K, Aoki, N, Apadula, Y, Aramaki, H, Asano, E C, Aschenauer, E T, Atomssa, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, B, Bannier, K N, Barish, B, Bassalleck, S, Bathe, V, Baublis, S, Baumgart, A, Bazilevsky, R, Belmont, A, Berdnikov, Y, Berdnikov, X, Bing, D S, Blau, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, S, Butsyk, S, Campbell, P, Castera, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, J B, Choi, S, Choi, R K, Choudhury, P, Christiansen, T, Chujo, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, M, Connors, M, Csanád, T, Csörgő, S, Dairaku, A, Datta, M S, Daugherity, G, David, A, Denisov, A, Deshpande, E J, Desmond, K V, Dharmawardane, O, Dietzsch, L, Ding, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, L, D'Orazio, S, Edwards, Y V, Efremenko, T, Engelmore, A, Enokizono, S, Esumi, K O, Eyser, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, J E, Frantz, A, Franz, A D, Frawley, Y, Fukao, T, Fusayasu, K, Gainey, C, Gal, A, Garishvili, I, Garishvili, A, Glenn, X, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, L, Guo, H-Å, Gustafsson, T, Hachiya, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hanks, K, Hashimoto, E, Haslum, R, Hayano, X, He, T K, Hemmick, T, Hester, J C, Hill, R S, Hollis, K, Homma, B, Hong, T, Horaguchi, Y, Hori, S, Huang, T, Ichihara, H, Iinuma, Y, Ikeda, J, Imrek, M, Inaba, A, Iordanova, D, Isenhower, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, M, Javani, J, Jia, X, Jiang, B M, Johnson, K S, Joo, D, Jouan, J, Kamin, S, Kaneti, B H, Kang, J H, Kang, J S, Kang, J, Kapustinsky, K, Karatsu, M, Kasai, D, Kawall, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, C, Kim, D J, Kim, E-J, Kim, H J, Kim, K-B, Kim, Y-J, Kim, Y K, Kim, E, Kinney, A, Kiss, E, Kistenev, J, Klatsky, D, Kleinjan, P, Kline, Y, Komatsu, B, Komkov, J, Koster, D, Kotchetkov, D, Kotov, A, Král, F, Krizek, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, B, Lee, D M, Lee, J, Lee, K B, Lee, K S, Lee, S H, Lee, S R, Lee, M J, Leitch, M A L, Leite, M, Leitgab, B, Lewis, S H, Lim, L A, Linden Levy, A, Litvinenko, M X, Liu, B, Love, C F, Maguire, Y I, Makdisi, M, Makek, A, Malakhov, A, Manion, V I, Manko, E, Mannel, S, Masumoto, M, McCumber, P L, McGaughey, D, McGlinchey, C, McKinney, M, Mendoza, B, Meredith, Y, Miake, T, Mibe, A C, Mignerey, A, Milov, D K, Mishra, J T, Mitchell, Y, Miyachi, S, Miyasaka, A K, Mohanty, H J, Moon, D P, Morrison, S, Motschwiller, T V, Moukhanova, T, Murakami, J, Murata, T, Nagae, S, Nagamiya, J L, Nagle, M I, Nagy, I, Nakagawa, Y, Nakamiya, K R, Nakamura, T, Nakamura, K, Nakano, C, Nattrass, A, Nederlof, M, Nihashi, R, Nouicer, N, Novitzky, A S, Nyanin, E, O'Brien, C A, Ogilvie, K, Okada, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, B H, Park, I H, Park, S K, Park, S F, Pate, L, Patel, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, R, Petti, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, H, Qu, J, Rak, I, Ravinovich, K F, Read, R, Reynolds, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, P, Rukoyatkin, B, Sahlmueller, N, Saito, T, Sakaguchi, V, Samsonov, M, Sano, M, Sarsour, S, Sawada, K, Sedgwick, R, Seidl, A, Sen, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, M, Soumya, I V, Sourikova, P W, Stankus, E, Stenlund, M, Stepanov, A, Ster, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sun, J, Sziklai, E M, Takagui, A, Takahara, A, Taketani, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, E, Tennant, H, Themann, T, Todoroki, L, Tomášek, M, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, T, Tsuji, C, Vale, H W, van Hecke, M, Vargyas, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, M, Virius, A, Vossen, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, Y S, Watanabe, F, Wei, R, Wei, S N, White, D, Winter, S, Wolin, C L, Woody, M, Wysocki, Y L, Yamaguchi, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, I, Younus, I E, Yushmanov, W A, Zajc, A, Zelenski, and L, Zolin
Abstract: Neutral-pion π(0) spectra were measured at midrapidity (|y|0.35) in Au+Au collisions at √(s(NN))=39 and 62.4 GeV and compared with earlier measurements at 200 GeV in a transverse-momentum range of 1p(T)10 GeV/c. The high-p(T) tail is well described by a power law in all cases, and the powers decrease significantly with decreasing center-of-mass energy. The change of powers is very similar to that observed in the corresponding spectra for p+p collisions. The nuclear modification factors (R(AA)) show significant suppression, with a distinct energy, centrality, and p(T) dependence. Above p(T)=7 GeV/c, R(AA) is similar for √(s(NN))=62.4 and 200 GeV at all centralities. Perturbative-quantum-chromodynamics calculations that describe R(AA) well at 200 GeV fail to describe the 39 GeV data, raising the possibility that, for the same p(T) region, the relative importance of initial-state effects and soft processes increases at lower energies. The p(T) range where π(0) spectra in central Au+Au collisions have the same power as in p+p collisions is ≈5 and 7 GeV/c for √(s(NN))=200 and 62.4 GeV, respectively. For the √(s(NN))=39 GeV data, it is not clear whether such a region is reached, and the x(T) dependence of the x(T)-scaling power-law exponent is very different from that observed in the √(s(NN))=62 and 200 GeV data, providing further evidence that initial-state effects and soft processes mask the in-medium suppression of hard-scattered partons to higher p(T) as the collision energy decreases.
Published: 2012

22. Measurements of Higher Order Flow Harmonics inAu+AuCollisions atsNN=200 GeV

Author: R. Pak, Vladimir Samsonov, Beomkyu Kim, K. Boyle, N. Kamihara, Wei Xie, Ajit Kumar Mohanty, T. A. Shibata, T. Sato, Kazuyoshi Kurita, F. Matathias, M. Ouchida, A. Drees, Tamas Ferenc Csorgo, Kensuke Homma, E. Richardson, K. N. Barish, D. Isenhower, A. Toia, Maya Hachiya Shimomura, Y. I. Makdisi, V. S. Pantuev, A. Yu. Semenov, J. L. Nagle, M. I. Nagy, D. Watanabe, P. Constantin, M. D. Malik, E. Vznuzdaev, J. Hamblen, S. Tarafdar, N. Means, S. P. Sorensen, K. I. Hahn, B. Bassalleck, T. Kempel, Dong-Hun Kim, M. J. Tannenbaum, H. Torii, Eva Haslum, B. Lenzi, Tadaaki Isobe, K. Karatsu, C. Silvestre, Marisilvia Donadelli, V. Bumazhnov, S. Afanasiev, S. Sano, Taku Gunji, H. Gong, J. Seele, F. Kajihara, S. Yokkaichi, B. Meredith, O. Chvala, P. L. McGaughey, Johannes Peter Wessels, Andry Malala Rakotozafindrabe, J. Newby, John Hill, Toru Sugitate, M. Konno, Anne Marie Sickles, R. Tanabe, K. Watanabe, Alice Mignerey, D. Hornback, M. L. Brooks, S. Butsyk, Y. J. Mao, François Fleuret, K. Okada, B. Sahlmueller, J. H. Kang, J. P. Wood, J. S. Haggerty, Seong H. Kim, A. V. Kazantsev, W. A. Zajc, A. Taranenko, V. Baublis, A. Denisov, H. En'yo, R. A. Soltz, K. Shoji, Y. Tanaka, Kazushi Miki, Brajesh K. Singh, X. He, J. T. Mitchell, M. Chiu, T. Ichihara, S. Zhou, M. J. Leitch, J. G. Lajoie, Takahiro Fusayasu, K. A. Drees, L. Tomášek, V. Cianciolo, Sergey Fokin, T. Horaguchi, M. Grosse Perdekamp, P. W. Stankus, M. E. Connors, Y. Aramaki, C. A. Ogilvie, V. Peresedov, Alexander Malakhov, D. Silvermyr, S. D. Rolnick, P. Mikeš, Kisung Lee, Alexander Milov, I. Nakagawa, R. Luechtenborg, T. Engelmore, R. Seidl, Vladislav Manko, Takao Sakaguchi, T. K. Hemmick, L. S. Zolin, G. R. Young, W. J. Park, Christopher Rosen, A. Yanovich, I. J. Choi, A. Kravitz, K. B. Lee, M. Slunečka, K. Tanida, Rushan Han, O. Drapier, J. Koster, Frank Ellinghaus, E. J. Desmond, E. R. Kinney, D. P. Morrison, Y. J. Kwon, M. Kurosawa, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, J. M. Durham, Y. Onuki, Peter Christiansen, A. K. Purwar, K. Fujiwara, A. D. Frawley, D. Winter, S. Belikov, D. Yu Peressounko, S. N. White, Y. L. Yamaguchi, H. Masui, Zvi Hirsh Citron, Y. S. Lai, K. Nakano, Y. Ikeda, S. Campbell, Yasuo Miake, C. L. Woody, A. Berdnikov, A. A. Bickley, E. J. Mannel, W. E. Sondheim, D. Ivanischev, Jan Rak, R. Lacey, P. A. Rukoyatkin, K. Das, E. P. Hartouni, P. Chung, D. Roach, K. M. Kijima, M. Togawa, E. Vazquez-Zambrano, R. Granier de Cassagnac, A. Adare, L. Kochenda, M. Issah, P. Tarján, J. Park, B. Love, L. Baksay, C. Vale, Minghui Liu, H. Qu, M. Heffner, A. Datta, S. Huang, C. Pinkenburg, Kenneth Francis Read, Tatsuya Chujo, I. Tserruya, Yu. Efremenko, Christine Angela Aidala, H. A. Gustafsson, Senta Greene, H. Pei, Xingguo Li, A. G. Litvinenko, E. Leitner, D. Kotchetkov, V. Singh, Y. Nakamiya, C. Zhang, Hideki Hamagaki, K. Aoki, A. T. Basye, G. David, M. Gonin, W. Holzmann, G. Roche, P. Ružička, Y. Tsuchimoto, B. Fadem, E. O'Brien, K. Sakashita, A. Kozlov, R. Seto, K. S. Sim, G. Baksay, O. Dietzsch, Viktor Riabov, E. T. Atomssa, A. Sukhanov, H. Pereira, I. V. Sourikova, T. L. Thomas, Y. Morino, I. Danchev, R. Yang, I. E. Yushmanov, Y. J. Kim, Ryugo S. Hayano, H. Valle, Dipanwita Dutta, K. Imai, Y. Riabov, Alexei Khanzadeev, Kenta Shigaki, M. Nguyen, E. Stenlund, A. S. Nyanin, Rachid Nouicer, H. W. Van Hecke, M. Proissl, Julia Velkovska, Jason Kamin, Eunja Kim, Jen-Chieh Peng, T. V. Moukhanova, Charles Maguire, S. P. Stoll, M. Rosati, R. Vértesi, A. Kiss, Inkyu Park, Henner Buesching, E. Kistenev, Xiong Wang, A. A. Vinogradov, S. S.E. Rosendahl, Steve Edwards, Dong Jo Kim, G. Bunce, J. E. Frantz, Jiangyong Jia, Y. Goto, A. Veicht, Marcus Hohlmann, L. A. Linden Levy, D. Jouan, S. Bathe, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, Rui Wei, S. Dairaku, J. Jin, E. M. Takagui, R. S. Towell, I. Garishvili, F. Wei, Kyeongpil Lee, S. Sawada, J. Ying, A. Franz, M. Virius, J. Ide, C. Y. Chi, C. Baumann, C. H. Chen, S. Kametani, C. P. Singh, B. M. Johnson, A. Glenn, A. Isupov, J. Sziklai, Jongmin Lee, Brian Cole, D. Lynch, D. S. Jumper, T. Dahms, I. Ravinovich, M. Wysocki, M. Bai, C. M. Camacho, M. Naglis, Zhiying You, R. Bennett, M. Kawashima, M. Finger, Prashant Shukla, C. L. Silva, S. F. Pate, H. Al-Bataineh, Masayasu Ishihara, V. Papavassiliou, D. Kawall, H. Themann, J. Murata, Gerd Joachim Kunde, I. Shein, E. H. Kim, K. Sedgwick, A. Deshpande, Y. Watanabe, I. Younus, B. Komkov, Norio Saito, Hongfang Liu, D. E. Fields, M. A. L. Leite, B. V. Jacak, M. McCumber, Y. Fukao, R. Belmont, J. S. Kapustinsky, V. Babintsev, G. S. Kyle, J. Hanks, James Alexander, R. Averbeck, Byung-Sik Hong, T. Hester, Sung Keun Park, N. N. Ajitanand, A. Bazilevsky, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, Takahiro Nakamura, K. Kiriluk, Susumu Oda, N. A. Sparks, A. Durum, K. Yamaura, Martin Purschke, N. Grau, Motoi Inaba, R. M. Wright, Mate Csanad, R. P. Pisani, A. Morreale, Z. Fraenkel, R. K. Choudhury, B. Azmoun, A. Král, M. Oka, A. Dion, Atsushi Taketani, A. Enokizono, P. Liebing, K. S. Joo, S. Esumi, D. Sharma, and R. Ichimiya
Subjects: Nuclear physics, Physics, Harmonics, Monte Carlo method, General Physics and Astronomy, Entropy (information theory), Rapidity, Boundary value problem, Nuclear Experiment, Anisotropy, Collision, Glauber
Abstract: Flow coefficients nu(n) for n = 2, 3, 4, characterizing the anisotropic collective flow in Au + Au collisions at root s(NN) = 200 GeV, are measured relative to event planes Psi(n), determined at large rapidity. We report nu(n) as a function of transverse momentum and collision centrality, and study the correlations among the event planes of different order n. The nu(n) are well described by hydrodynamic models which employ a Glauber Monte Carlo initial state geometry with fluctuations, providing additional constraining power on the interplay between initial conditions and the effects of viscosity as the system evolves. This new constraint can serve to improve the precision of the extracted shear viscosity to entropy density ratio eta/s.
Published: 2011
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23. Cold Nuclear Matter Effects onJ/ψYields as a Function of Rapidity and Nuclear Geometry ind+ACollisions atsNN=200 GeV

Author: T. L. Thomas, V. S. Pantuev, K. S. Joo, Ryugo S. Hayano, S. Afanasiev, M. K. Dayananda, E. H. Kim, X. Jiang, J. Hamblen, A. Ster, Y. Riabov, M. Wysocki, Kenta Shigaki, N. Apadula, I. Tserruya, Yu. Efremenko, J. Newby, M. Nguyen, Tadaaki Isobe, K. Okada, B. Sahlmueller, A. Vossen, Y. Nakamiya, V. Singh, A. S. Nyanin, Dmitry Blau, Jongmin Lee, Y. Fukao, H. En'yo, P. Tarján, M. J. Leitch, Rachid Nouicer, M. Proissl, S. Esumi, O. Dietzsch, D. Sharma, P. L. McGaughey, Charles Maguire, T. Hester, K. A. Drees, C. M. Camacho, E. J. Desmond, R. Ichimiya, K. Das, E. P. Hartouni, E. T. Atomssa, H. Valle, H. A. Gustafsson, D. Hornback, G. Baksay, D. Lynch, Prashant Shukla, T. Kempel, Dong-Hun Kim, M. Chiu, S. F. Pate, M. Togawa, E. Vazquez-Zambrano, A. Glenn, Ke. Nakamura, S. N. White, Dipanwita Dutta, C. Zhang, G. S. Kyle, Deepa Thomas, P. Ružička, R. Pak, Kiyoshi Tanida, Marisilvia Donadelli, V. Bumazhnov, J. Park, Andry Malala Rakotozafindrabe, D. S. Jumper, A. Yu. Semenov, V. L. Rykov, T. Dahms, H. Al-Bataineh, B. Azmoun, A. Král, M. J. Kweon, A. Taranenko, James Alexander, Eunja Kim, Julia Velkovska, E. Kistenev, C. L. Woody, A. Berdnikov, J. Gosset, N. Kamihara, M. Gonin, Zvi Hirsh Citron, K. Nakano, Viktor Riabov, K. Watanabe, Y. Tsuchimoto, R. Tanabe, Y. Iwanaga, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, I. Ravinovich, K. Shoji, I. E. Yushmanov, Kazushi Miki, T. Horaguchi, W. E. Sondheim, D. Ivanischev, Minghui Liu, P. Lichtenwalner, M. Rosati, A. Caringi, Y. J. Kim, Jen-Chieh Peng, Kazuyoshi Kurita, V-N. Tram, N. Grau, Senta Greene, Taku Gunji, H. Gong, C. Oakley, A. Drees, J. Seele, M. Oka, D. Layton, P. A. Rukoyatkin, L. Aphecetche, V. Papavassiliou, Hongfang Liu, D. E. Fields, K. O. Eyser, A. K. Purwar, A. T. Basye, M. Heffner, Kenneth Francis Read, A. Sukhanov, H. Pereira, K. V. Dharmawardane, B. V. Jacak, M. Bai, Philippe Rosnet, P. W. Stankus, Brajesh K. Singh, T. Murakami, K. Fujiwara, T. Ichihara, Alexandre Lebedev, Y. Morino, Inkyu Park, B. Fadem, E. O'Brien, Takahiro Fusayasu, W. C. Chang, Xiong Wang, A. A. Vinogradov, Atsushi Taketani, Y. L. Yamaguchi, R. A. Soltz, H. Borel, J. T. Mitchell, Motoi Inaba, R. M. Wright, Alexei Khanzadeev, I. V. Sourikova, M. McCumber, F. Kajihara, S. Yokkaichi, P. Liebing, Tae-Yeon Lee, Martin Purschke, Z. Conesa del Valle, Jiangyong Jia, Y. Goto, Y. Tanaka, Alexander Malakhov, Dong Jo Kim, E. Stenlund, G. Grim, M. Grosse Perdekamp, D. M. Lee, D. Silvermyr, A. Dion, C. A. Ogilvie, H. Iinuma, Rushan Han, K. Karatsu, M. Kasai, A. P.T. Palounek, M. E. Connors, R. Seidl, Vladislav Manko, M. Slunečka, Zhiying You, K. B. Lee, A. V. Kazantsev, S. Sawada, R. Bennett, J. B. Choi, J. Ying, A. Franz, Johannes Peter Wessels, L. S. Zolin, M. Kawashima, Kisung Lee, Mate Csanad, A. Veicht, W. J. Park, Anne Marie Sickles, Y. Ikeda, T. K. Hemmick, J. G. Boissevain, E. J. Mannel, Christopher Rosen, K. Kiriluk, J. M. Durham, Yasuo Miake, P. D. Barnes, A. Yanovich, Aaron Angerami, J. Hanks, M. Ouchida, S. Belikov, M. Finger, S. Dairaku, W. A. Zajc, L. Tomášek, Sung Keun Park, Vladimir Samsonov, J. H. Bhom, S. Butsyk, N. Means, J. Asai, S. Tarafdar, A. Morreale, Z. Fraenkel, H. J. Moon, L. Baksay, T. Jones, N. N. Ajitanand, L. Kochenda, M. Issah, O. Zaudtke, M. Nihashi, B. Meredith, B. Komkov, V. Baublis, H. W. Van Hecke, A. Denisov, Peter Christiansen, V. Cianciolo, Alexander Milov, I. Nakagawa, T. Engelmore, Y. Tomita, T. V. Moukhanova, Sergey Fokin, D. Roach, K. M. Kijima, C. Vale, H. Qu, Shingo Sakai, M. I. Nagy, T. C. Awes, Kyoichiro Ozawa, T. Liška, H. Pei, R. Vértesi, R. K. Choudhury, David D'Enterria, C. Pinkenburg, D. Winter, Eva Haslum, D. Yu Peressounko, K. Sakashita, Norio Saito, John Hill, B. Lenzi, M. Virius, S. Zhou, Takahiro Nakamura, D. Watanabe, G. R. Young, B. S. Chang, Christine Angela Aidala, J. Klay, J. S. Bok, Jun Kikuchi, D. McGlinchey, Hideki Hamagaki, K. Aoki, A. Baldisseri, O. Drapier, Frank Ellinghaus, Tamas Ferenc Csorgo, G. David, J. L. Nagle, Toru Sugitate, M. D. Malik, Xingguo Li, M. Stepanov, G. Roche, E. R. Kinney, Y. J. Mao, R. P. Pisani, Jason Kamin, A. Kiss, Tsutomu Mibe, M. A. L. Leite, C. H. Chen, Y. Onuki, E. Vznuzdaev, Susumu Oda, Henner Buesching, Steve Edwards, S. P. Stoll, S. D. Rolnick, F. Matathias, A. Durum, J. E. Frantz, S. P. Sorensen, J. H. Kang, J. S. Haggerty, Jan Rak, O. Chvala, S. S.E. Rosendahl, R. Lacey, Kensuke Homma, E. Richardson, François Fleuret, G. Bunce, D. P. Morrison, R. Granier de Cassagnac, S. Campbell, J. L. Charvet, P. Constantin, Catherine Micaela Silvestre, Seong H. Kim, A. Hadj Henni, A. Adare, Marcus Hohlmann, K. Yamaura, J. G. Lajoie, A. Churyn, S. Chernichenko, V. E. Semenov, K. I. Hahn, B. Bassalleck, L. A. Linden Levy, P. Mikeš, D. Jouan, Beomkyu Kim, K. Boyle, Wei Xie, I. J. Choi, A. Kravitz, R. Belmont, M. Kurosawa, J. S. Kapustinsky, M. Konno, V. Babintsev, Y. S. Lai, S. Bathe, A. Enokizono, K. S. Sim, V. Dzhordzhadze, Agneta Oskarsson, Y. Kwon, Y. Berdnikov, Y. Akiba, R. Yang, M. Mishra, S. Nagamiya, P. Chung, S. Taneja, J. Imrek, Vaclav Vrba, Klaus Johannes Reygers, Tatsuya Chujo, Rui Wei, K. Imai, A. Datta, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, T. Sato, D. Isenhower, A. Toia, L. Mašek, T. Niita, R. S. Towell, I. Garishvili, F. Wei, C. Y. Chi, J. Jin, E. M. Takagui, C. Baumann, S. Kametani, C. P. Singh, B. M. Johnson, R. J. Petti, A. Isupov, C. Suire, J. Sziklai, Brian Cole, K. N. Barish, S. Nam, S. Sano, M. L. Brooks, B. Love, A. G. Litvinenko, A. Kozlov, R. Seto, K. Haruna, I. Danchev, X. He, Y. Aramaki, V. Peresedov, J. Koster, S. Batsouli, H. Masui, A. K. Dubey, A. A. Bickley, A. Deshpande, Y. Watanabe, I. Younus, A. Soldatov, M. Naglis, Masayasu Ishihara, F. Staley, D. Kawall, H. Themann, J. Murata, Gerd Joachim Kunde, I. Shein, K. Sedgwick, Maya Hachiya Shimomura, Y. I. Makdisi, M. J. Tannenbaum, H. Torii, A. Kim, D. Mukhopadhyay, S. Rembeczki, Alice Mignerey, L. D'Orazio, Takao Sakaguchi, C. Klein-Boesing, A. D. Frawley, S. Huang, and W. Holzmann
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Nuclear Theory, Hadron, General Physics and Astronomy, Elementary particle, Quarkonium, Nuclear matter, 7. Clean energy, 01 natural sciences, Gluon, Nuclear physics, 0103 physical sciences, Bound state, Rapidity, Nuclear Experiment, 010306 general physics
Abstract: We present measurements of J/psi yields in d + Au collisions at root S-NN = 200 GeV recorded by the PHENIX experiment and compare them with yields in p + p collisions at the same energy per nucleon-nucleon collision. The measurements cover a large kinematic range in J/psi rapidity (-2.2 < y < 2.4) with high statistical precision and are compared with two theoretical models: one with nuclear shadowing combined with final state breakup and one with coherent gluon saturation effects. In order to remove model dependent systematic uncertainties we also compare the data to a simple geometric model. The forward rapidity data are inconsistent with nuclear modifications that are linear or exponential in the density weighted longitudinal thickness, such as those from the final state breakup of the bound state.
Published: 2011
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24. Observation of direct-photon collective flow in Au + Au collisions at √s(NN)] = 200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, M, Connors, P, Constantin, M, Csanád, T, Csörgő, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, R, Han, J, Hanks, E P, Hartouni, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, J, Ide, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D H, Kim, D J, Kim, E, Kim, E J, Kim, S H, Kim, Y J, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, C, Klein-Boesing, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K, Lee, K B, Lee, K S, Lee, M J, Leitch, M A L, Leite, E, Leitner, B, Lenzi, X, Li, P, Liebing, L A, Linden Levy, T, Liška, A, Litvinenko, H, Liu, M X, Liu, B, Love, R, Luechtenborg, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, A C, Mignerey, P, Mikeš, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, N A, Sparks, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, J P, Wood, C L, Woody, R M, Wright, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: The second Fourier component v(2) of the azimuthal anisotropy with respect to the reaction plane is measured for direct photons at midrapidity and transverse momentum (p(T)) of 1-12 GeV/c in Au + Au collisions at √s(NN)] = 200 GeV. Previous measurements of this quantity for hadrons with p(T)6 GeV/c indicate that the medium behaves like a nearly perfect fluid, while for p(T)6 GeV/c a reduced anisotropy is interpreted in terms of a path-length dependence for parton energy loss. In this measurement with the PHENIX detector at the Relativistic Heavy Ion Collider we find that for p(T)4 GeV/c the anisotropy for direct photons is consistent with zero, which is as expected if the dominant source of direct photons is initial hard scattering. However, in the p(T)4 GeV/c region dominated by thermal photons, we find a substantial direct-photon v(2) comparable to that of hadrons, whereas model calculations for thermal photons in this kinematic region underpredict the observed v(2).
Published: 2011

25. Suppression of back-to-back hadron pairs at forward rapidity in d+Au collisions at √s(NN)=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, A, Angerami, K, Aoki, N, Apadula, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, J H, Bhom, D S, Blau, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, A, Caringi, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, J B, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, Z, Conesa del Valle, M, Connors, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, M K, Dayananda, A, Denisov, A, Deshpande, E J, Desmond, K V, Dharmawardane, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, L, D'Orazio, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, G, Grim, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, R, Han, J, Hanks, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, D, Ivanischev, Y, Iwanaga, B V, Jacak, J, Jia, X, Jiang, J, Jin, B M, Johnson, T, Jones, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, M, Kasai, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, J, Kikuchi, A, Kim, B I, Kim, D J, Kim, E J, Kim, Y-J, Kim, E, Kinney, Á, Kiss, E, Kistenev, L, Kochenda, B, Komkov, M, Konno, J, Koster, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K S, Lee, M J, Leitch, M A L, Leite, X, Li, P, Lichtenwalner, P, Liebing, L A, Linden Levy, T, Liška, A, Litvinenko, H, Liu, M X, Liu, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, T, Mibe, A C, Mignerey, K, Miki, A, Milov, J T, Mitchell, A K, Mohanty, H J, Moon, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, T, Murakami, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, K R, Nakamura, T, Nakamura, K, Nakano, S, Nam, J, Newby, M, Nguyen, M, Nihashi, R, Nouicer, A S, Nyanin, C, Oakley, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, R, Petti, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, H, Qu, J, Rak, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rukoyatkin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, H, Themann, D, Thomas, T L, Thomas, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, C L, Woody, R M, Wright, M, Wysocki, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, S, Zhou, and L, Zolin
Abstract: Back-to-back hadron pair yields in d+Au and p+p collisions at √s(NN)=200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidity |η|0.35 and the associated hadron at forward rapidity (deuteron direction, 3.0η3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case, the yield of back-to-back hadron pairs in d+Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to p+p collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with a low fraction x of the nucleon momenta, where the gluon densities rise sharply. The observed suppression as a function of nuclear thickness, p(T), and η points to cold nuclear matter effects arising at high parton densities.
Published: 2011

26. Measurements of higher order flow harmonics in Au+Au collisions at √s(NN)=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, M, Connors, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, R, Han, J, Hanks, E P, Hartouni, E, Haslum, R, Hayano, X, He, M, Heffner, T K, Hemmick, T, Hester, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, J, Ide, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D H, Kim, D J, Kim, E, Kim, E J, Kim, S H, Kim, Y J, Kim, E, Kinney, K, Kiriluk, Á, Kiss, E, Kistenev, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K, Lee, K B, Lee, K S, Lee, M J, Leitch, M A L, Leite, E, Leitner, B, Lenzi, X, Li, P, Liebing, L A, Linden Levy, T, Liška, A, Litvinenko, H, Liu, M X, Liu, B, Love, R, Luechtenborg, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, A C, Mignerey, P, Mikeš, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, M, Oka, K, Okada, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, N A, Sparks, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, J P, Wood, C L, Woody, R M, Wright, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, Z, You, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: Flow coefficients ν(n) for n=2, 3, 4, characterizing the anisotropic collective flow in Au+Au collisions at √s(NN)=200 GeV, are measured relative to event planes Ψ(n), determined at large rapidity. We report ν(n) as a function of transverse momentum and collision centrality, and study the correlations among the event planes of different order n. The ν(n) are well described by hydrodynamic models which employ a Glauber Monte Carlo initial state geometry with fluctuations, providing additional constraining power on the interplay between initial conditions and the effects of viscosity as the system evolves. This new constraint can serve to improve the precision of the extracted shear viscosity to entropy density ratio η/s.
Published: 2011

27. Cross Section and Parity-Violating Spin Asymmetries ofW±Boson Production in Polarizedp+pCollisions ats=500 GeV

Author: M. Kasai, A. Deshpande, B. Meredith, Alice Mignerey, John Hill, Toru Sugitate, L. D'Orazio, M. Sarsour, Mate Csanad, François Fleuret, D. Watanabe, A. Iordanova, T. Ichihara, Takahiro Fusayasu, Alexander Malakhov, D. Silvermyr, L. S. Zolin, A. Yanovich, Takao Sakaguchi, M. Mendoza, S. N. White, E. Vznuzdaev, Y. J. Kwon, Deepa Thomas, Marisilvia Donadelli, V. Bumazhnov, Zvi Hirsh Citron, K. Nakano, W. E. Sondheim, D. Ivanischev, K. Boyle, P. A. Rukoyatkin, D. Kotov, Dmitry Blau, E. J. Desmond, M. Ouchida, N. Means, A. D. Frawley, M. Nihashi, Alexander Milov, I. Nakagawa, Atsushi Takahara, Aaron Angerami, Hongfang Liu, R. Tanabe, Young-Ki Kim, T. Engelmore, T. Murakami, D. E. Fields, B. Love, J. S. Kang, K. A. Drees, S. Huang, Y. L. Yamaguchi, Y. Watanabe, Jason Kamin, M. Togawa, E. Vazquez-Zambrano, W. A. Zajc, M. Rosati, K. B. Lee, B. V. Jacak, R. S. Towell, I. Ravinovich, Y. Ikeda, V. Baublis, I. Younus, S. P. Stoll, A. Denisov, C. Harper, E. J. Mannel, E. R. Kinney, V. Cianciolo, T. Kempel, D. P. Morrison, A. G. Litvinenko, W. Holzmann, S. Kaneti, H. Pei, S. Campbell, S. Sawada, Y. Miyachi, Y. Tsuchimoto, Sergey Fokin, Y. Iwanaga, B. H. Kang, I. Garishvili, T. Csörgő, F. Wei, R. P. Pisani, M. Bai, V. S. Pantuev, J. Ying, A. Franz, S. S.E. Rosendahl, G. Bunce, Rushan Han, A. Dion, M. I. Nagy, Maya Hachiya Shimomura, R. S. Hollis, I. E. Yushmanov, M. Kurosawa, H. W. Van Hecke, A. Enokizono, H. Al-Ta'Ani, Tatsuya Chujo, B. Azmoun, A. Král, Jiangyong Jia, Y. Goto, Y. I. Makdisi, R. Akimoto, Johannes Peter Wessels, E. C. Aschenauer, M. McCumber, I. Tserruya, J. Hamblen, Vladimir Samsonov, M. Naglis, R. Seto, Senta Greene, D. Roach, D. Jouan, C. L. Woody, A. Berdnikov, Yu. Efremenko, Prashant Shukla, K. V. Dharmawardane, P. L. McGaughey, K. M. Kijima, H. Qu, V. Singh, M. Gonin, C. Pinkenburg, A. T. Basye, A. Kiss, S. F. Pate, A. Caringi, C. Y. Chi, Hideki Hamagaki, K. Aoki, G. David, Ke. Nakamura, K. S. Sim, B. Fadem, E. O'Brien, M. Chiu, K. Hashimoto, A. Datta, D. Kleinjan, Eric Appelt, M. J. Tannenbaum, K. R. Andrews, R. A. Soltz, K. Okada, Beomkyu Kim, O. Drapier, B. Sahlmueller, Y. Fukao, Henner Buesching, H. Iinuma, C. A. Ogilvie, Xingguo Li, Zhiying You, R. Yang, R. Bennett, R. Armendariz, Kisung Lee, T. K. Hemmick, Ajit Kumar Mohanty, Y. J. Mao, H. Torii, M. Grosse Perdekamp, H. En'yo, Masayasu Ishihara, J. Hanks, K. N. Barish, Sung Keun Park, M. J. Leitch, T. Hester, J. M. Durham, M. E. Connors, Yasuo Miake, K. Watanabe, Yosuke Watanabe, T. A. Shibata, C. L. Silva, S. P. Sorensen, S. Taneja, K. Shoji, T. Sato, A. V. Kazantsev, E. Tennant, L. Guo, J. L. Nagle, P. Castera, Alexei Khanzadeev, M. Finger, S. Dairaku, N. N. Ajitanand, X. Gong, L. Kochenda, M. Issah, A. Glenn, I. V. Sourikova, K. Imai, E. Stenlund, S. Sano, J. H. Kang, J. S. Haggerty, S. R. Lee, J. B. Choi, O. Chvala, I. J. Choi, P. W. Stankus, L. A. Linden Levy, D. Kawall, Eunja Kim, M. Savastio, L. Tomášek, S. Motschwiller, H. A. Gustafsson, D. Isenhower, Jan Rak, R. Lacey, Takahiro Nakamura, V. Papavassiliou, K. Utsunomiya, Jen-Chieh Peng, R. Pak, J. G. Lajoie, T. Jones, Ryugo S. Hayano, R. Granier de Cassagnac, Peter Christiansen, H. Themann, M. L. Brooks, Y. Riabov, A. Adare, D. McGlinchey, Agneta Oskarsson, D. Winter, J. E. Frantz, X. He, Kenta Shigaki, M. Virius, Charles Maguire, D. Yu Peressounko, Y. Berdnikov, Y. Akiba, C. McKinney, M. Nguyen, Inkyu Park, Y. Aramaki, V. Peresedov, N. Grau, Xiong Wang, Robert Vertesi, E. M. Takagui, Byoungchoo Park, Kazuyoshi Kurita, Taku Gunji, Z. Conesa del Valle, T. V. Moukhanova, O. Dietzsch, J. Murata, C. Baumann, K. Karatsu, A. Durum, J. Ben-Benjamin, D. Hornback, S. Nagamiya, Viktor Riabov, Gerd Joachim Kunde, Dong Jo Kim, J. Koster, C. Oakley, T. C. Awes, Kyoichiro Ozawa, A. Drees, J. S. Bok, Y. Hori, Anne Marie Sickles, C. P. Singh, A. S. Nyanin, Catherine Micaela Silvestre, Vaclav Vrba, Klaus Johannes Reygers, Y. S. Lai, Rui Wei, B. M. Johnson, Motoi Inaba, H. Masui, S. H. Lee, S. Butsyk, I. Shein, R. J. Petti, A. Veicht, R. M. Wright, K. Sedgwick, A. Isupov, Rachid Nouicer, Kiyoshi Tanida, S. Zhou, M. Oka, A. N. Zelenski, M. Proissl, C. H. Chen, G. R. Young, A. Sukhanov, J. Sziklai, H. Pereira, Minghui Liu, S. D. Rolnick, A. Manion, E. Kistenev, J. S. Yoo, Brian Cole, M. K. Dayananda, Julia Velkovska, Y. Morino, Kenneth Francis Read, M. Wysocki, P. Kline, B. Bannier, P. Lichtenwalner, T. Sodre, Jongmin Lee, J. Sun, S. Yokkaichi, Atsushi Taketani, Y. Tanaka, D. Lynch, Martin Purschke, H. J. Moon, D. Broxmeyer, A. Morreale, R. K. Choudhury, K. S. Joo, N. Apadula, A. Vossen, S. Esumi, D. Sharma, J. T. Mitchell, R. Ichimiya, R. Seidl, Vladislav Manko, M. Slunečka, C. Vale, S. Afanasiev, Christine Angela Aidala, S. Bathe, Kensuke Homma, E. Richardson, J. Newby, G. Roche, K. I. Hahn, B. Bassalleck, M. Konno, Y. Nakamiya, Y. J. Kim, A. Taranenko, Kazushi Miki, T. Horaguchi, Brajesh K. Singh, S. Tarafdar, Eva Haslum, B. Komkov, Norio Saito, Tsutomu Mibe, M. A. L. Leite, H. H. Shim, S. H. Lim, R. Belmont, J. S. Kapustinsky, V. Babintsev, X. Jiang, M. Tomášek, G. S. Kyle, James Alexander, Byung-Sik Hong, A. Bazilevsky, Alexandre Lebedev, and D. M. Lee
Subjects: Quark, Physics, Particle physics, Antiparticle, 010308 nuclear & particles physics, General Physics and Astronomy, Elementary particle, Astrophysics::Cosmology and Extragalactic Astrophysics, Fermion, 01 natural sciences, 7. Clean energy, Nuclear physics, Positron, Antimatter, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Boson, Lepton
Abstract: Large parity-violating longitudinal single-spin asymmetries A(L)(e+) = 0.86(-0.14)(+0.30) and Ae(L)(e-) = 0.88(-0.71)(+0.12) are observed for inclusive high transverse momentum electrons and positrons in polarized p + p collisions at a center-of-mass energy of root s = 500 GeV with the PHENIX detector at RHIC. These e(+/-) come mainly from the decay of W-+/- and Z(0) bosons, and their asymmetries directly demonstrate parity violation in the couplings of the W-+/- to the light quarks. The observed electron and positron yields were used to estimate W-+/- boson production cross sections for the e(+/-) channels of sigma(pp -> W+X) X BR(W+ -> e(+) nu(e)) = 144.1 +/- 21.2(stat)(-10.3)(+3.4)(syst) +/- 21.6(norm) pb, and sigma(pp -> W-X) X BR(W- -> e(-) (nu) over bar (e)) = 3.17 +/- 12.1(stat)(-8.2)(+10.1)(syst) +/- 4.8(norm) pb.
Published: 2011
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28. Azimuthal Anisotropy ofπ0Production inAu+AuCollisions atsNN=200 GeV: Path-Length Dependence of Jet Quenching and the Role of Initial Geometry

Author: L. Tomášek, V. S. Pantuev, T. Horaguchi, Charles Maguire, Kiyoshi Tanida, E. Kistenev, K. Okada, B. Sahlmueller, H. En'yo, M. J. Leitch, Y. Tanaka, K. A. Drees, S. Hegyi, L. Baksay, B. Love, J. P. Wood, K. Das, E. P. Hartouni, A. G. Litvinenko, Alexander Milov, I. Nakagawa, R. Luechtenborg, T. Engelmore, O. Drapier, Frank Ellinghaus, M. Issah, T. Kempel, Dong-Hun Kim, E. R. Kinney, B. Azmoun, A. Král, F. Matathias, Kensuke Homma, E. Richardson, Maya Hachiya Shimomura, K. Watanabe, D. P. Morrison, S. Campbell, Y. I. Makdisi, S. Bathe, Y. J. Kwon, Agneta Oskarsson, R. A. Soltz, S. Afanasiev, K. Shoji, A. Kozlov, Tatsuya Chujo, P. Constantin, R. Seto, M. Grosse Perdekamp, Y. Berdnikov, M. E. Connors, Y. Akiba, M. Ouchida, M. Mishra, S. Nagamiya, P. W. Stankus, M. J. Tannenbaum, N. Means, D. Kotchetkov, J. Newby, H. Torii, K. I. Hahn, B. Bassalleck, M. Oka, S. Dairaku, A. Deshpande, Vaclav Vrba, Klaus Johannes Reygers, D. Hornback, Rui Wei, Peter Christiansen, T. L. Thomas, M. Rosati, M. Heffner, Alice Mignerey, A. Dion, Taku Gunji, H. Gong, I. Danchev, J. Seele, J. Jin, D. Winter, D. Yu Peressounko, M. Konno, Ryugo S. Hayano, P. Tarján, E. M. Takagui, A. Taranenko, F. Kajihara, Y. Riabov, M. Virius, Kenta Shigaki, Kazushi Miki, Takao Sakaguchi, Brajesh K. Singh, M. Nguyen, Atsushi Taketani, A. S. Nyanin, K. N. Barish, A. D. Frawley, Rachid Nouicer, A. A. Vinogradov, C. H. Chen, Y. Watanabe, Y. Ikeda, A. Enokizono, P. Liebing, S. Huang, H. Qu, Senta Greene, C. L. Woody, A. Berdnikov, S. Tarafdar, S. Butsyk, E. J. Mannel, R. Pak, W. Holzmann, Jiangyong Jia, Y. Goto, A. Glenn, A. T. Basye, I. Younus, R. S. Towell, S. Zhou, I. Garishvili, Hideki Hamagaki, K. Aoki, F. Wei, B. Fadem, E. O'Brien, Eva Haslum, B. Lenzi, G. David, N. Kamihara, S. Sano, Kyeongpil Lee, I. V. Sourikova, S. D. Rolnick, J. Ide, C. Pinkenburg, D. Kawall, C. Y. Chi, Ajit Kumar Mohanty, T. A. Shibata, Kazuyoshi Kurita, G. Roche, T. Sato, C. Baumann, S. Kametani, H. Themann, T. Ichihara, C. P. Singh, B. M. Johnson, M. L. Brooks, A. Drees, Jongmin Lee, O. Dietzsch, M. Proissl, A. Isupov, J. Sziklai, E. T. Atomssa, H. Valle, Marisilvia Donadelli, V. Bumazhnov, D. Lynch, X. He, Andry Malala Rakotozafindrabe, Brian Cole, J. Murata, Takahiro Fusayasu, Dipanwita Dutta, M. Gonin, D. S. Jumper, Y. Aramaki, V. Peresedov, T. Dahms, R. Tanabe, Alexander Malakhov, Gerd Joachim Kunde, J. Koster, Julia Velkovska, D. Silvermyr, I. Shein, A. Yu. Semenov, A. Sukhanov, Rushan Han, H. Masui, L. S. Zolin, H. Pereira, Vladimir Samsonov, Y. Morino, W. J. Park, Christopher Rosen, A. A. Bickley, K. Sedgwick, I. Ravinovich, Tamas Ferenc Csorgo, A. Yanovich, M. Bai, J. L. Nagle, S. Yokkaichi, K. B. Lee, S. N. White, A. K. Purwar, K. Fujiwara, Zhiying You, Y. J. Mao, R. Bennett, M. Kawashima, Y. L. Yamaguchi, M. Finger, J. H. Kang, Zvi Hirsh Citron, J. S. Haggerty, Mate Csanad, Hongfang Liu, D. E. Fields, K. Nakano, B. V. Jacak, W. E. Sondheim, E. Leitner, M. Naglis, D. Ivanischev, D. Roach, K. M. Kijima, C. L. Silva, P. A. Rukoyatkin, Y. Onuki, Y. S. Lai, M. McCumber, H. W. Van Hecke, B. Meredith, Xingguo Li, S. P. Sorensen, M. Chiu, A. Kiss, Masayasu Ishihara, John Hill, Henner Buesching, Steve Edwards, Toru Sugitate, Jan Rak, R. Lacey, O. Chvala, Seong H. Kim, J. Hanks, Sung Keun Park, N. N. Ajitanand, J. T. Mitchell, C. A. Ogilvie, Kisung Lee, T. K. Hemmick, Yasuo Miake, R. Seidl, J. G. Lajoie, Marcus Hohlmann, I. J. Choi, A. Kravitz, François Fleuret, R. P. Pisani, Takahiro Nakamura, L. Kochenda, Vladislav Manko, L. A. Linden Levy, M. Slunečka, R. Granier de Cassagnac, Susumu Oda, K. Sakashita, A. Durum, Y. Fukao, A. Adare, S. Belikov, Catherine Micaela Silvestre, K. Yamaura, Jason Kamin, T. Hester, S. P. Stoll, Martin Purschke, S. Sawada, C. Vale, J. Ying, S. S.E. Rosendahl, G. Bunce, A. Franz, N. A. Sparks, Christine Angela Aidala, Y. Nakamiya, D. Jouan, A. Morreale, Z. Fraenkel, R. K. Choudhury, G. Baksay, K. S. Joo, N. Grau, M. Wysocki, D. Sharma, R. Ichimiya, K. S. Sim, Motoi Inaba, R. M. Wright, C. M. Camacho, Prashant Shukla, S. F. Pate, Y. J. Kim, H. Al-Bataineh, V. Papavassiliou, R. Yang, K. Imai, K. Karatsu, Anne Marie Sickles, G. R. Young, B. Komkov, Norio Saito, Minghui Liu, M. A. L. Leite, Kenneth Francis Read, R. Belmont, J. S. Kapustinsky, A. V. Kazantsev, V. Babintsev, G. S. Kyle, James Alexander, R. Averbeck, Byung-Sik Hong, P. Mikeš, A. Bazilevsky, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, K. Kiriluk, E. H. Kim, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, Tadaaki Isobe, P. L. McGaughey, Jen-Chieh Peng, R. Vértesi, Inkyu Park, J. E. Frantz, Xiong Wang, Alexei Khanzadeev, E. Stenlund, Dong Jo Kim, J. Hamblen, J. M. Durham, T. V. Moukhanova, E. J. Desmond, M. Togawa, E. Vazquez-Zambrano, J. Park, A. Veicht, Y. Tsuchimoto, I. Tserruya, Yu. Efremenko, I. E. Yushmanov, V. Singh, H. A. Gustafsson, Johannes Peter Wessels, C. Zhang, Eunja Kim, Beomkyu Kim, K. Boyle, Wei Xie, M. I. Nagy, D. Watanabe, M. D. Malik, E. Vznuzdaev, P. Ružička, Viktor Riabov, S. Esumi, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, D. Isenhower, A. Toia, Sergey Fokin, M. Kurosawa, P. Chung, A. Datta, and H. Pei
Subjects: Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Elliptic flow, Hadron, General Physics and Astronomy, Perturbative QCD, Elementary particle, 01 natural sciences, Gluon, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Anisotropy, Jet quenching
Abstract: We have measured the azimuthal anisotropy of pi(0) production for 1 < p(T) < 18 GeV/c for Au + Au collisions at root s(NN) = 200 GeV. The observed anisotropy shows a gradual decrease for 3 less than or similar to p(T) less than or similar to 7-10 GeV/c, but remains positive beyond 10 GeV/c. The magnitude of this anisotropy is underpredicted, up to at least similar to 10 GeV/c, by current perturbative QCD (PQCD) energy-loss model calculations. An estimate of the increase in anisotropy expected from initial-geometry modification due to gluon saturation effects and fluctuations is insufficient to account for this discrepancy. Calculations that implement a path-length dependence steeper than what is implied by current PQCD energy-loss models show reasonable agreement with the data.
Published: 2010
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29. Cross section and parity-violating spin asymmetries of W± boson production in polarized p + p collisions at sqrt[s] = 500 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, R, Akimoto, J, Alexander, H, Al-Ta'ani, K R, Andrews, A, Angerami, K, Aoki, N, Apadula, E, Appelt, Y, Aramaki, R, Armendariz, E C, Aschenauer, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, B, Bannier, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, R, Belmont, J, Ben-Benjamin, R, Bennett, A, Berdnikov, Y, Berdnikov, D S, Blau, J S, Bok, K, Boyle, M L, Brooks, D, Broxmeyer, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, A, Caringi, P, Castera, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, J B, Choi, R K, Choudhury, P, Christiansen, T, Chujo, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, Z, Conesa del Valle, M, Connors, M, Csanád, T, Csörgo, S, Dairaku, A, Datta, G, David, M K, Dayananda, A, Denisov, A, Deshpande, E J, Desmond, K V, Dharmawardane, O, Dietzsch, A, Dion, M, Donadelli, L, D'Orazio, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, Y V, Efremenko, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, J E, Frantz, A, Franz, A D, Frawley, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, X, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, L, Guo, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, J, Hanks, R, Han, C, Harper, K, Hashimoto, E, Haslum, R, Hayano, T K, Hemmick, T, Hester, X, He, J C, Hill, R S, Hollis, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, Y, Hori, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, H, Iinuma, Y, Ikeda, K, Imai, M, Inaba, A, Iordanova, D, Isenhower, M, Ishihara, M, Issah, A, Isupov, D, Ivanischev, Y, Iwanaga, B V, Jacak, J, Jia, X, Jiang, B M, Johnson, T, Jones, K S, Joo, D, Jouan, J, Kamin, S, Kaneti, B H, Kang, J H, Kang, J S, Kang, J, Kapustinsky, K, Karatsu, M, Kasai, D, Kawall, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D J, Kim, E J, Kim, Y-J, Kim, Y K, Kim, E, Kinney, Á, Kiss, E, Kistenev, D, Kleinjan, P, Kline, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotov, A, Král, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K S, Lee, S H, Lee, S R, Lee, M J, Leitch, M A L, Leite, P, Lichtenwalner, S H, Lim, L A, Linden Levy, A, Litvinenko, H, Liu, M X, Liu, X, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, A, Manion, V I, Manko, E, Mannel, Y, Mao, H, Masui, M, McCumber, P L, McGaughey, D, McGlinchey, C, McKinney, N, Means, M, Mendoza, B, Meredith, Y, Miake, T, Mibe, A C, Mignerey, K, Miki, A, Milov, J T, Mitchell, Y, Miyachi, A K, Mohanty, H J, Moon, Y, Morino, A, Morreale, D P, Morrison, S, Motschwiller, T V, Moukhanova, T, Murakami, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, K R, Nakamura, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, M, Nihashi, R, Nouicer, A S, Nyanin, C, Oakley, E, O'Brien, C A, Ogilvie, K, Okada, M, Oka, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, B H, Park, I H, Park, S K, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, R, Petti, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, H, Qu, J, Rak, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, S S E, Rosendahl, P, Rukoyatkin, B, Sahlmueller, N, Saito, T, Sakaguchi, V, Samsonov, S, Sano, M, Sarsour, T, Sato, M, Savastio, S, Sawada, K, Sedgwick, R, Seidl, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, H H, Shim, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, T, Sodre, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sun, J, Sziklai, E M, Takagui, A, Takahara, A, Taketani, R, Tanabe, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, E, Tennant, H, Themann, D, Thomas, M, Togawa, L, Tomášek, M, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, K, Utsunomiya, C, Vale, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, M, Virius, A, Vossen, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, Y S, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, C L, Woody, R M, Wright, M, Wysocki, Y L, Yamaguchi, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, J S, Yoo, G R, Young, I, Younus, Z, You, I E, Yushmanov, W A, Zajc, A, Zelenski, S, Zhou, and L, Zolin
Abstract: Large parity-violating longitudinal single-spin asymmetries A(L)(e+) = -0.86(-0.14) (+0.30) and A(L)(e-) = 0.88(-0.71) (+0.12) are observed for inclusive high transverse momentum electrons and positrons in polarized p+p collisions at a center-of-mass energy of sqrt[s] = 500 GeV with the PHENIX detector at RHIC. These e± come mainly from the decay of W± and Z0 bosons, and their asymmetries directly demonstrate parity violation in the couplings of the W± to the light quarks. The observed electron and positron yields were used to estimate W± boson production cross sections for the e± channels of σ(pp → W+ X) × BR(W+ → e+ ν(e)) = 144.1 ± 21.2(stat)(-10.3) (+3.4) (syst) ± 21.6(norm) pb, and σ(pp → W- X) × BR(W- → e- ν[over ¯](e)) = 31.7 ± 12.1(stat)(-8.2) (+10.1) (syst) ± 4.8(norm) pb.
Published: 2010

30. Elliptic and Hexadecapole Flow of Charged Hadrons inAu+AuCollisions atsNN=200 GeV

Author: D. Sharma, R. Ichimiya, B. Azmoun, A. Král, M. Oka, A. Dion, Atsushi Taketani, A. Enokizono, P. Liebing, Martin Purschke, Mate Csanad, A. Morreale, Z. Fraenkel, C. M. Camacho, M. Rosati, R. K. Choudhury, K. Karatsu, S. Dairaku, E. H. Kim, Alice Mignerey, Y. Nakamiya, Sung Keun Park, Prashant Shukla, L. Tomášek, V. S. Pantuev, R. A. Soltz, S. F. Pate, Marisilvia Donadelli, M. Gonin, Anne Marie Sickles, V. Bumazhnov, Y. J. Mao, B. Meredith, N. N. Ajitanand, S. Esumi, H. Al-Bataineh, R. Pak, M. Grosse Perdekamp, M. E. Connors, E. J. Desmond, A. A. Vinogradov, Minghui Liu, A. Sukhanov, H. Pereira, S. Tarafdar, Y. Tanaka, W. A. Zajc, Andry Malala Rakotozafindrabe, G. Baksay, M. Togawa, E. Vazquez-Zambrano, N. Kamihara, G. R. Young, S. Bathe, H. Qu, K. A. Drees, V. Baublis, A. Denisov, Takao Sakaguchi, R. P. Pisani, V. Cianciolo, K. Okada, Y. Morino, Jiangyong Jia, Y. Goto, Kenneth Francis Read, S. Hegyi, Eva Haslum, B. Lenzi, B. Sahlmueller, H. En'yo, J. H. Kang, John Hill, V. Papavassiliou, K. N. Barish, M. Virius, Y. J. Kim, Agneta Oskarsson, M. J. Leitch, J. Park, Y. Onuki, J. S. Haggerty, Sergey Fokin, Hideki Hamagaki, K. Aoki, R. Tanabe, Kazuyoshi Kurita, K. Tanida, S. Afanasiev, G. David, J. T. Mitchell, A. D. Frawley, Jan Rak, Takahiro Nakamura, Peter Christiansen, A. Drees, M. Kurosawa, Y. Fukao, R. Seidl, Tadaaki Isobe, B. Komkov, R. Lacey, J. Newby, D. Winter, L. Baksay, D. Yu Peressounko, Y. J. Kwon, T. Hester, Y. Berdnikov, Y. Akiba, Toru Sugitate, R. Granier de Cassagnac, A. Adare, Vladislav Manko, M. Slunečka, Y. Tsuchimoto, P. Tarján, Johannes Peter Wessels, M. Ouchida, S. P. Sorensen, Charles Maguire, S. Huang, C. H. Chen, M. Mishra, Norio Saito, S. Nagamiya, N. A. Sparks, K. Sakashita, H. A. Gustafsson, S. Belikov, P. L. McGaughey, N. Means, M. A. L. Leite, P. Chung, K. Das, M. Wysocki, E. P. Hartouni, Susumu Oda, D. Hornback, D. Kotchetkov, O. Chvala, C. Zhang, M. Heffner, I. E. Yushmanov, S. Sano, W. Holzmann, Vaclav Vrba, Klaus Johannes Reygers, A. Durum, Maya Hachiya Shimomura, Seong H. Kim, M. Issah, N. Grau, Jason Kamin, A. Glenn, E. Kistenev, P. Ružička, K. S. Sim, C. Vale, A. Taranenko, T. Kempel, Dong-Hun Kim, Rui Wei, Senta Greene, Alexei Khanzadeev, Y. I. Makdisi, J. G. Lajoie, Beomkyu Kim, K. Boyle, Christine Angela Aidala, S. P. Stoll, I. Ravinovich, Kazushi Miki, A. V. Kazantsev, Catherine Micaela Silvestre, A. Datta, E. Stenlund, Rushan Han, A. T. Basye, Wei Xie, Motoi Inaba, Brajesh K. Singh, K. Yamaura, R. M. Wright, Viktor Riabov, R. Belmont, J. S. Kapustinsky, S. Sawada, V. Babintsev, H. Pei, A. K. Purwar, B. Fadem, K. Fujiwara, E. O'Brien, Vladimir Samsonov, I. J. Choi, A. Kravitz, S. S.E. Rosendahl, G. Bunce, M. Bai, O. Dietzsch, J. Ying, A. Franz, P. Mikeš, G. S. Kyle, T. Horaguchi, C. L. Woody, A. Berdnikov, K. B. Lee, F. Matathias, François Fleuret, Y. S. Lai, K. Watanabe, M. Proissl, E. T. Atomssa, H. Valle, A. Yu. Semenov, Kensuke Homma, E. Richardson, Y. L. Yamaguchi, Ajit Kumar Mohanty, James Alexander, T. A. Shibata, M. J. Tannenbaum, Dipanwita Dutta, P. Constantin, H. Torii, K. Shoji, T. Sato, R. Averbeck, Byung-Sik Hong, K. I. Hahn, A. Bazilevsky, E. Leitner, Hongfang Liu, D. Jouan, D. E. Fields, T. C. Awes, Kyoichiro Ozawa, T. Liška, B. Bassalleck, Julia Velkovska, B. V. Jacak, D. Roach, Philippe Rosnet, J. S. Bok, M. Chiu, M. Konno, J. Hamblen, P. W. Stankus, J. M. Durham, Tamas Ferenc Csorgo, K. M. Kijima, S. N. White, Alexandre Lebedev, C. A. Ogilvie, M. McCumber, D. M. Lee, Zhiying You, M. I. Nagy, R. Bennett, T. K. Hemmick, H. W. Van Hecke, I. V. Sourikova, J. L. Nagle, M. Kawashima, T. L. Thomas, D. Isenhower, A. Toia, D. Watanabe, K. Kiriluk, Yasuo Miake, M. D. Malik, S. Yokkaichi, Xingguo Li, T. V. Moukhanova, E. Vznuzdaev, M. Finger, L. Kochenda, M. L. Brooks, Y. Ikeda, Ryugo S. Hayano, Jongmin Lee, E. J. Mannel, Y. Riabov, A. Kiss, R. Vértesi, J. Hanks, Kenta Shigaki, M. Nguyen, D. Lynch, C. Pinkenburg, Zvi Hirsh Citron, Henner Buesching, Taku Gunji, H. Gong, J. Seele, Steve Edwards, A. S. Nyanin, G. Roche, F. Kajihara, Rachid Nouicer, D. S. Jumper, K. S. Lee, T. Dahms, K. Nakano, X. He, Marcus Hohlmann, L. A. Linden Levy, S. Butsyk, Y. Aramaki, V. Peresedov, W. E. Sondheim, S. Zhou, D. Ivanischev, S. D. Rolnick, J. Koster, J. E. Frantz, H. Masui, A. A. Bickley, B. Love, P. A. Rukoyatkin, T. Ichihara, A. G. Litvinenko, Takahiro Fusayasu, Alexander Malakhov, A. Kozlov, R. Seto, D. Silvermyr, L. S. Zolin, W. J. Park, Christopher Rosen, I. Danchev, A. Yanovich, R. S. Towell, I. Garishvili, F. Wei, Kyeongpil Lee, J. Ide, C. Y. Chi, C. Baumann, S. Kametani, C. P. Singh, B. M. Johnson, A. Isupov, J. Sziklai, Brian Cole, J. Jin, E. M. Takagui, D. Kawall, H. Themann, J. Murata, Gerd Joachim Kunde, I. Shein, K. Sedgwick, A. Deshpande, Y. Watanabe, I. Younus, Jen-Chieh Peng, M. Naglis, C. L. Silva, Masayasu Ishihara, Inkyu Park, Xiong Wang, Dong Jo Kim, A. Veicht, I. Tserruya, Yu. Efremenko, V. Singh, R. Yang, K. Imai, Eunja Kim, J. P. Wood, Alexander Milov, I. Nakagawa, R. Luechtenborg, T. Engelmore, O. Drapier, Frank Ellinghaus, E. R. Kinney, D. P. Morrison, S. Campbell, Tatsuya Chujo, and K. S. Joo
Subjects: Physics, Nuclear reaction, 010308 nuclear & particles physics, Elliptic flow, Hadron, General Physics and Astronomy, Elementary particle, Fermion, 01 natural sciences, Charged particle, Nuclear physics, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: Differential measurements of the elliptic (upsilon(2)) and hexadecapole (upsilon(4)) Fourier flow coefficients are reported for charged hadrons as a function of transverse momentum (p(T)) and collision centrality or number of participant nucleons (N-part) for Au + Au collisions at root s(NN) = 200 GeV/ The upsilon(2,4) measurements at pseudorapidity vertical bar eta vertical bar
Published: 2010
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31. Azimuthal anisotropy of π⁰ production in Au+Au collisions at sqrt((s)NN)=200 GeV: path-length dependence of jet quenching and the role of initial geometry

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, Y, Aramaki, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, K N, Barish, B, Bassalleck, A T, Basye, S, Bathe, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Belmont, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J S, Bok, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, C-H, Chen, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, P, Christiansen, T, Chujo, P, Chung, O, Chvala, V, Cianciolo, Z, Citron, B A, Cole, M, Connors, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, I, Danchev, K, Das, A, Datta, G, David, A, Denisov, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, J M, Durham, A, Durum, D, Dutta, S, Edwards, Y V, Efremenko, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-Å, Gustafsson, J S, Haggerty, K I, Hahn, H, Hamagaki, J, Hamblen, J, Hanks, R, Han, E P, Hartouni, E, Haslum, R, Hayano, M, Heffner, S, Hegyi, T K, Hemmick, T, Hester, X, He, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, J, Ide, Y, Ikeda, K, Imai, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, D S, Jumper, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, K, Karatsu, D, Kawall, M, Kawashima, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, B I, Kim, D H, Kim, D J, Kim, E J, Kim, E, Kim, S H, Kim, Y J, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, L, Kochenda, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, J, Lee, K B, Lee, K, Lee, K S, Lee, M J, Leitch, M A L, Leite, E, Leitner, B, Lenzi, P, Liebing, L A, Linden Levy, T, Liška, A, Litvinenko, H, Liu, M X, Liu, X, Li, B, Love, R, Luechtenborg, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, A C, Mignerey, P, Mikeš, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, K, Okada, M, Oka, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, V, Pantuev, V, Papavassiliou, I H, Park, J, Park, S K, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, M, Proissl, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, K, Reygers, V, Riabov, Y, Riabov, E, Richardson, D, Roach, G, Roche, S D, Rolnick, M, Rosati, C A, Rosen, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ružička, B, Sahlmueller, N, Saito, T, Sakaguchi, K, Sakashita, V, Samsonov, S, Sano, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunečka, R A, Soltz, W E, Sondheim, S P, Sorensen, I V, Sourikova, N A, Sparks, P W, Stankus, E, Stenlund, S P, Stoll, T, Sugitate, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, S, Tarafdar, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, L, Tomášek, H, Torii, R S, Towell, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, E, Vazquez-Zambrano, A, Veicht, J, Velkovska, R, Vértesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, X R, Wang, D, Watanabe, K, Watanabe, Y, Watanabe, F, Wei, R, Wei, J, Wessels, S N, White, D, Winter, J P, Wood, C L, Woody, R M, Wright, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, G R, Young, I, Younus, Z, You, I E, Yushmanov, W A, Zajc, C, Zhang, S, Zhou, and L, Zolin
Abstract: We have measured the azimuthal anisotropy of π⁰ production for 1p(T)18 GeV/c for Au+Au collisions at sqrt((s)NN)=200 GeV. The observed anisotropy shows a gradual decrease for 3≲p(T)≲7-10 GeV/c, but remains positive beyond 10 GeV/c. The magnitude of this anisotropy is underpredicted, up to at least ∼10 GeV/c, by current perturbative QCD (PQCD) energy-loss model calculations. An estimate of the increase in anisotropy expected from initial-geometry modification due to gluon saturation effects and fluctuations is insufficient to account for this discrepancy. Calculations that implement a path-length dependence steeper than what is implied by current PQCD energy-loss models show reasonable agreement with the data.
Published: 2010

32. Enhanced Production of Direct Photons inAu+AuCollisions atsNN=200 GeVand Implications for the Initial Temperature

Author: V. Peresedov, Marisilvia Donadelli, S. Y. Fung, H. Kanou, H. Gong, J. Seele, V. Bumazhnov, M. P. Comets, F. Kajihara, K. Hasuko, J. Rak, Hiroyuki Okada, Joakim Nystrand, D. J. Kim, F. Matathias, H. Masui, A. K. Dubey, E. J. Desmond, Eva Haslum, B. Lenzi, Kensuke Homma, S. Afanasiev, A. Ster, J. Newby, Charles Maguire, S. Leckey, A. A. Bickley, D. Hornback, M. Heffner, A. Taranenko, Kazushi Miki, John Hill, S. Zhou, M. Togawa, S. Chernichenko, Anne Marie Sickles, C. P. Singh, A. Deshpande, H. Lim, B. M. Johnson, Josh Moss, B. Bassalleck, A. Baldisseri, J. Park, Florian Bauer, I. Ravinovich, J. Egdemir, A. Isupov, C. Suire, P. Tarján, L. D. Isenhower, Y. S. Kim, B. Love, Y. Nagata, M. Konno, M. Gonin, J. Sziklai, G. R. Young, K. Shigaki, E. Kistenev, Y. Tsuchimoto, J. L. Charvet, François Fleuret, I. Tserruya, Yu. Efremenko, V. Singh, S. S. Ryu, Rushan Han, M. N. Hagiwara, Jason Kamin, S. P. Stoll, W. A. Zajc, V. Baublis, Brian Cole, Y. Watanabe, B. Forestier, D. E. Fields, J. T. Mitchell, Mate Csanad, I. Younus, V. S. Pantuev, T. E. Miller, R. Vértesi, H. Pereira, B. V. Jacak, H. Harada, M. Mitrovski, Y. L. Yamaguchi, A. G. Litvinenko, R. Bennett, A. Denisov, V. Cianciolo, M. Harvey, J. H. Kang, M. Wysocki, Hirohiko Sato, T. Ichihara, S. Butsyk, P. Chung, R. Seidl, Vladislav Manko, S. S.E. Rosendahl, M. Slunečka, M. McCumber, A. K. Purwar, G. Bunce, Vladimir Samsonov, I. Otterlund, Ahmed Al-Jamel, A. Soldatov, Robert F. Hobbs, S. K. Tuli, M. Finger, Junji Tojo, Matthew G. Reuter, M. Holmes, A. Kozlov, Saskia Mioduszewski, Takahiro Fusayasu, J. Chiba, Senta Greene, K. S. Sim, O. Zaudtke, Y. Kwon, M. Naglis, C. L. Silva, R. Seto, K. Haruna, I. D. Ojha, Alexander Malakhov, ShinIchi Esumi, K. Dehmelt, H. Hiejima, B. Komkov, Tamas Ferenc Csorgo, A. Churyn, D. Jouan, K. Okada, B. Sahlmueller, G. C. Mishra, H. Pei, H. En'yo, Jen-Chieh Peng, B. E. Norman, E. O'Brien, P. Constantin, O. Dietzsch, V. Dzhordzhadze, D. Silvermyr, A. Kiss, L. S. Zolin, W. J. Park, Z. Yasin, C. Vale, S. Takagi, J. L. Drachenberg, J. Jin, E. M. Takagui, T. Horaguchi, M. J. Leitch, K. Imai, Xiong Wang, J. L. Nagle, Osamu Jinnouchi, David D'Enterria, S. P. Sorensen, M. Virius, Dylan Walker, Norio Saito, E. T. Atomssa, Christine Angela Aidala, Masayasu Ishihara, Susumu Sato, J. Klay, H. Borel, Tae-Yeon Lee, Martin Purschke, T. Chujo, N. Grau, K. N. Barish, K. Shoji, P. D. Barnes, A. Yanovich, H. Valle, F. Gastineau, S. Kelly, R. S. Towell, M. A. L. Leite, I. Garishvili, Akio Kiyomichi, S. Batsouli, N. N. Ajitanand, W. S. Emam, Takao Sakaguchi, Y. Mao, J. M. Burward-Hoy, B. Chang, M. Chiu, T. A. Shibata, Debashish Pal, S. Sawada, J. Ying, A. Franz, B. Espagnon, Y. Nakamiya, F. Staley, D. Kawall, K. Das, S. Gadrat, Marcus Hohlmann, M. Grosse Perdekamp, N. Kurihara, Alexander Milov, I. Nakagawa, E. P. Hartouni, E. Stenlund, H. Sakata, C. Klein-Boesing, C. A. Ogilvie, T. K. Hemmick, K. Tanida, S. F. Pate, Julia Velkovska, Takahiro Nakamura, O. Drapier, Frank Ellinghaus, A. D. Frawley, R. Lacey, T. Tabaru, P. W. Stankus, E. R. Kinney, S. N. White, D. P. Morrison, V. I. Kochetkov, Y. Cobigo, W. C. Smith, R. Granier de Cassagnac, M. Rosati, J. G. Lajoie, Susumu Oda, M. G. Hur, C. Y. Chi, G. Baksay, T. Hachiya, A. Adare, S. Campbell, D. Kotchetkov, R. P. Pisani, V. E. Semenov, Nikolay Tyurin, P. Rosnet, J. Zimányi, H. Al-Bataineh, J. Murata, L. Kochenda, T. Shohjoh, K. Ozawa, A. Durum, Steven E. Skutnik, S. H. Aronson, S. Bathe, M. K. Lee, I. J. Choi, A. Morreale, V. Babintsev, J. E. Frantz, M. C. McCain, M. T. Bjorndal, Catherine Micaela Silvestre, A. Kravitz, D. Winter, Hiroaki Ohnishi, D. Isenhower, Y. Akiba, K. Nakano, Gerd Joachim Kunde, W. Holzmann, M. N. Wagner, I. Shein, M. Mishra, A. Toia, E. H. Kim, A. A. Vinogradov, Henrik Tydesjö, T. Kawagishi, D. S. Brown, M. L. Brooks, D. Yu Peressounko, S. Nagamiya, Kazuhiro Tanaka, Maya Hachiya Shimomura, Y. Fukao, A. Shevel, Z. Fraenkel, V. Papavassiliou, Vaclav Vrba, A. Rakotozafindrabe, W. E. Sondheim, A. P.T. Palounek, D. Lynch, H. Qu, R. Pak, L. Mašek, Y. Berdnikov, T. V. Moukhanova, Klaus Johannes Reygers, Y. I. Makdisi, A. Oskarsson, Jiangyong Jia, Y. Goto, I. Yushmanov, T. Gunji, Y. Miake, H. Buesching, P. A. Rukoyatkin, N. Kamihara, S. Fokin, J. P. Wessels, K. O. Eyser, K. Fujiwara, T. C. Awes, S. Belikov, K. S. Joo, K. Aoki, A. Glenn, G. David, R. Armendariz, Xiao-yan Li, T. Hester, Xingguo Li, V. L. Rykov, T. Dahms, Kazuyoshi Kurita, H. A. Gustafsson, M. B. Deaton, G. S. Kyle, A. Drees, M. J. Tannenbaum, N. Willis, James Alexander, H. Torii, H. W. Van Hecke, C. R. Cleven, C. Haegemann, Y. Inoue, J. Kubart, R. Soltz, Y. Tanaka, R. Averbeck, M. Inaba, C. Zhang, Byung-Sik Hong, A. Bazilevsky, T. K. Shea, P. J. Kroon, D. Mukhopadhyay, S. Rembeczki, Dong-Hun Kim, D. Bucher, A. Khanzadeev, Alexandre Lebedev, D. Sharma, D. M. Lee, L. Baksay, V-N. Tram, M. Germain, Viktor Riabov, B. Azmoun, A. Král, M. J. Kweon, Y. Le Bornec, M. Oka, A. Dion, Atsushi Taketani, A. Enokizono, T. L. Thomas, Ryugo S. Hayano, J. Gosset, J. P. Sullivan, Y. Riabov, S. Yokkaichi, J. M. Heuser, M. Nguyen, H. Delagrange, J. G. Boissevain, Masashi Kaneta, A. S. Nyanin, C. Pinkenburg, M. Stepanov, G. Roche, S. Kametani, J. S. Haggerty, A. Romana, Y. S. Lai, M. Ouchida, J. Asai, Shingo Sakai, C. L. Woody, Minghui Liu, T. Sugitate, Kenneth Francis Read, I. V. Sourikova, Tadaaki Isobe, J. S. Chai, H. Hamagaki, P. L. McGaughey, A. V. Kazantsev, L. Tomášek, P. Mikeš, T. Liška, Jun Kikuchi, L. Aphecetche, M. Issah, M. D. Malik, E. Vznuzdaev, A. Hadj Henni, K. Boyle, Wei Xie, X. He, and O. O. Omiwade
Subjects: Physics, Quantum chromodynamics, Antiparticle, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, Elementary particle, 01 natural sciences, 7. Clean energy, Nuclear physics, Internal conversion, Pair production, Antimatter, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Lepton
Abstract: The production of e(+)e(-) pairs for m(e+e-) < 0.3 GeV/c(2) and 1< p(T) < 5 GeV/c is measured in p + p and Au + Au collisions at root s(NN) = 200 GeV. An enhanced yield above hadronic sources is observed. Treating the excess as photon internal conversions, the invariant yield of direct photons is deduced. In central Au + Au collisions, the excess of the direct photon yield over p + p is exponential in transverse momentum, with an inverse slope T = 221 +/- 19(stat) +/- 19(syst) MeV. Hydrodynamical models with initial temperatures ranging from T-init similar to 300-600 MeV at times of similar to 0.6-0.15 fm/c after the collision are in qualitative agreement with the data. Lattice QCD predicts a phase transition to quark gluon plasma at similar to 170 MeV.
Published: 2010
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33. Measurement of Bottom Versus Charm as a Function of Transverse Momentum with Electron-Hadron Correlations inp+pCollisions ats=200 GeV

Author: A. Deshpande, C. L. Woody, P. Tarján, A. Berdnikov, D. E. Fields, E. Kistenev, H. Harada, S. Dairaku, A. Yu. Semenov, B. V. Jacak, J. Gosset, Y. Watanabe, M. B. Deaton, H. Pei, Y. Tanaka, O. Zaudtke, M. McCumber, Mate Csanad, F. Staley, L. Baksay, Ajit Kumar Mohanty, C. Silvestre, I. Younus, Tae-Yeon Lee, A. Soldatov, T. A. Shibata, T. Sato, L. Tomáek, I. V. Sourikova, Senta Greene, S. Yokkaichi, Martin Purschke, M. K. Lee, M. Virius, Y. Nakamiya, G. Baksay, K. S. Sim, V. Dzhordzhadze, Y. Kwon, Saskia Mioduszewski, C. A. Ogilvie, D. Isenhower, A. Toia, D. Kotchetkov, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Andry Malala Rakotozafindrabe, E. H. Kim, R. Yang, A. T. Basye, David D'Enterria, H. Hiejima, T. K. Hemmick, M. Naglis, A. Morreale, Yasuo Miake, B. E. Norman, C. L. Silva, C. R. Cleven, C. Haegemann, Y. Inoue, B. Fadem, E. O'Brien, R. A. Soltz, M. N. Wagner, M. Rosati, Y. Fukao, N. N. Ajitanand, Y. Ikeda, A. Shevel, Z. Fraenkel, J. G. Boissevain, E. J. Mannel, T. Niita, Masashi Kaneta, T. Hester, K. A. Drees, A. Glenn, R. Tanabe, D. Layton, K. Imai, Masayasu Ishihara, M. Grosse Perdekamp, M. Ouchida, T. Kempel, Dong-Hun Kim, Susumu Sato, R. K. Choudhury, L. Kochenda, C. Pinkenburg, Y. Onuki, N. Means, J. Jin, B. Azmoun, E. M. Takagui, Takahiro Nakamura, J. L. Charvet, D. Kawall, A. Král, M. J. Kweon, J. Asai, K. Tanida, H. Themann, W. C. Chang, M. Stepanov, G. Roche, Steven E. Skutnik, C. Baumann, Y. J. Mao, A. A. Vinogradov, Jan Rak, S. Kametani, T. Horaguchi, V-N. Tram, C. P. Singh, V. I. Kochetkov, N. Grau, G. S. Kyle, B. M. Johnson, Susumu Oda, J. Murata, Herve Borel, D. Lynch, F. Matathias, James Alexander, J. H. Kang, J. S. Haggerty, A. Romana, Kensuke Homma, R. Lacey, R. Granier de Cassagnac, A. Adare, T. E. Miller, M. Kurosawa, A. Isupov, C. Suire, A. Durum, Motoi Inaba, Jiangyong Jia, Y. Goto, R. Averbeck, Byung-Sik Hong, R. Pak, L. Maek, H. Qu, J. Sziklai, Gerd Joachim Kunde, A. Bazilevsky, I. Shein, Shingo Sakai, Rushan Han, T. L. Thomas, Robert F. Hobbs, D. Winter, N. Kamihara, P. Chung, K. Yamaura, Philippe Rosnet, K. O. Eyser, A. K. Purwar, K. Fujiwara, K. Sedgwick, D. Yu Peressounko, P. Constantin, P. Mike, V. L. Rykov, T. Dahms, J. Imrek, K. Das, S. Butsyk, S. Chernichenko, Brian Cole, R. S. Towell, Hideki Hamagaki, K. Aoki, Alberto Baldisseri, Alexandre Lebedev, Vladimir Samsonov, G. David, M. Oka, D. M. Lee, Y. S. Lai, R. Armendariz, E. P. Hartouni, I. Ravinovich, Kazuyoshi Kurita, B. Bassalleck, A. Dion, W. S. Emam, Y. Nagata, I. Garishvili, Akio Kiyomichi, F. Wei, Debashish Pal, K. Kiriluk, A. Drees, M. Bai, Y. L. Yamaguchi, S. Sawada, J. Ying, A. Franz, B. Komkov, M. Konno, J. Kubart, N. Kurihara, H. Kanou, Taku Gunji, H. Gong, Ryugo S. Hayano, J. Seele, Atsushi Taketani, K. Sakashita, H. Liu, F. Kajihara, C. Y. Chi, Anne Marie Sickles, Y. Riabov, Kenta Shigaki, K. Shoji, H. W. Van Hecke, Norio Saito, Tamas Ferenc Csorgo, M. A. L. Leite, J. T. Mitchell, A. Enokizono, H. Delagrange, R. Seidl, M. Nguyen, Vladislav Manko, K. S. Joo, R. Bennett, J. L. Nagle, C. M. Camacho, Prashant Shukla, A. S. Nyanin, P. W. Stankus, M. Slunečka, M. Finger, J. S. Kapustinsky, S. F. Pate, Rachid Nouicer, V. Babintsev, J. Egdemir, S. Belikov, Jason Kamin, S. Zhou, S. Bathe, S. P. Stoll, S. D. Rolnick, Agneta Oskarsson, H. Al-Bataineh, T. Ichihara, G. R. Young, Matthew G. Reuter, Y. Berdnikov, Takahiro Fusayasu, Y. Akiba, O. Dietzsch, C. Vale, B. S. Chang, M. Mishra, Alexander Malakhov, S. S.E. Rosendahl, G. Bunce, B. Love, E. T. Atomssa, H. Valle, S. Nagamiya, V. Papavassiliou, Sébastien Gadrat, D. Sharma, Christine Angela Aidala, J. Klay, R. Ichimiya, K. Dehmelt, Vaclav Vrba, Klaus Johannes Reygers, D. Silvermyr, L. S. Zolin, A. G. Litvinenko, Dipanwita Dutta, Jen-Chieh Peng, W. J. Park, A. Churyn, A. Kiss, M. Mitrovski, P. D. Barnes, A. Yanovich, D. Jouan, Julia Velkovska, Z. Yasin, Henner Buesching, S. N. White, A. Kozlov, R. Seto, K. Haruna, M. Wysocki, Xiong Wang, Zvi Hirsh Citron, Marcus Hohlmann, Dong Jo Kim, Osamu Jinnouchi, K. Nakano, W. E. Sondheim, S. Takagi, D. Ivanischev, Hiroaki Ohnishi, K. B. Lee, K. N. Barish, S. Afanasiev, A. Ster, P. A. Rukoyatkin, A. Veicht, John Hill, I. Tserruya, Yu. Efremenko, V. Singh, P. Ruička, P. Liebing, D. Hornback, Toru Sugitate, L. D. Isenhower, M. Heffner, M. L. Brooks, A. Taranenko, X. He, O. O. Omiwade, Kazushi Miki, François Fleuret, Brajesh K. Singh, V. Peresedov, Beau Meredith, V. S. Pantuev, J. Koster, Alexander Milov, I. Nakagawa, T. Engelmore, D. Roach, K. M. Kijima, O. Drapier, Frank Ellinghaus, T. Lika, S. Batsouli, H. Masui, A. K. Dubey, Junji Tojo, E. R. Kinney, A. A. Bickley, Hiroyuki Okada, D. P. Morrison, S. Campbell, Eva Haslum, B. Lenzi, K. Okada, B. Sahlmueller, H. En'yo, M. J. Leitch, V. E. Semenov, J. Zimányi, Tatsuya Chujo, Xingguo Li, M. Gonin, A. Sukhanov, H. Pereira, Y. Morino, S. P. Sorensen, Dylan Walker, Seong H. Kim, J. G. Lajoie, T. Hachiya, I. J. Choi, A. Kravitz, Minghui Liu, Kenneth Francis Read, Tadaaki Isobe, P. L. McGaughey, M. Chiu, A. V. Kazantsev, A. Hadj Henni, Maya Hachiya Shimomura, Y. I. Makdisi, M. J. Tannenbaum, H. Torii, D. Mukhopadhyay, S. Rembeczki, J. Chiba, Beomkyu Kim, K. Boyle, T. C. Awes, Kyoichiro Ozawa, Takao Sakaguchi, C. Klein-Boesing, Jun Kikuchi, A. D. Frawley, T. Tabaru, S. Huang, S. H. Aronson, W. Holzmann, Wei Xie, M. I. Nagy, M. Issah, M. D. Malik, E. Vznuzdaev, L. Aphecetche, Johannes Peter Wessels, H. A. Gustafsson, C. Zhang, R. Vértesi, Viktor Riabov, A. P.T. Palounek, S. Esumi, W. A. Zajc, Jason Newby, V. Baublis, A. Denisov, V. Cianciolo, Y. Tomita, J. E. Frantz, Sergey Fokin, E. J. Desmond, M. Togawa, J. Park, Y. Tsuchimoto, I. E. Yushmanov, Alexei Khanzadeev, E. Stenlund, H. Sakata, T. V. Moukhanova, and Charles Maguire
Subjects: Quark, Semileptonic decay, Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, Electron, 01 natural sciences, Nuclear physics, Momentum, 0103 physical sciences, High Energy Physics::Experiment, Charm (quantum number), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: The momentum distribution of electrons from semileptonic decays of charm and bottom quarks for midrapidity |y| e(+/-)K(-/+)X (K unidentified) reconstruction. It is found that the yield of electrons from bottom becomes significant above 4 GeV/c in p(T). A fixed-order-plus-next-to-leading-log perturbative quantum chromodynamics calculation agrees with the data within the theoretical and experimental uncertainties. The extracted total bottom production cross section at this energy is sigma(bb)=3.2(-1.1)(+1.2)(stat)(-1.3)(+1.4)(syst)mu b.
Published: 2009
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34. Gluon-Spin Contribution to the Proton Spin from the Double-Helicity Asymmetry in Inclusiveπ0Production in Polarizedp+pCollisions ats=200 GeV

Author: Yu. Efremenko, Tadaaki Isobe, H. Pei, V. Singh, K. S. Sim, V. Dzhordzhadze, P. Tarján, P. L. McGaughey, Y. Watanabe, M. Chiu, A. Yu. Semenov, J. Gosset, R. Yang, S. Afanasiev, A. Ster, M. Gonin, S. Taneja, B. Azmoun, A. Král, M. J. Kweon, F. Matathias, J. Newby, G. Roche, L. Aphecetche, T. L. Thomas, Kensuke Homma, K. Imai, Tae-Yeon Lee, Martin Purschke, A. Morreale, Z. Fraenkel, A. Sukhanov, H. Pereira, Y. Morino, Senta Greene, R. K. Choudhury, L. Tomášek, V. S. Pantuev, S. Yokkaichi, R. S. Towell, I. Garishvili, F. Wei, K. A. Drees, A. V. Kazantsev, Y. L. Yamaguchi, A. T. Basye, B. Fadem, E. O'Brien, P. Constantin, B. Komkov, S. Chernichenko, K. Sakashita, Ryugo S. Hayano, M. Oka, A. Dion, Jen-Chieh Peng, S. Bathe, D. Hornback, Y. Ikeda, J. G. Boissevain, E. J. Mannel, Johannes Peter Wessels, C. M. Camacho, Prashant Shukla, B. Bassalleck, N. N. Ajitanand, Agneta Oskarsson, Atsushi Taketani, A. Enokizono, P. Liebing, C. Silvestre, Anne Marie Sickles, K. Okada, Youngil Kwon, K. S. Joo, S. F. Pate, Norio Saito, M. A. L. Leite, A. Deshpande, M. Rosati, Y. Riabov, M. Heffner, M. Konno, Taku Gunji, H. Gong, B. Sahlmueller, R. A. Soltz, H. En'yo, M. J. Leitch, Dong Jo Kim, M. I. Nagy, M. Issah, C. Pinkenburg, Marisilvia Donadelli, V. Bumazhnov, J. Seele, Y. Berdnikov, D. Sharma, T. C. Awes, M. D. Malik, C. Y. Chi, R. Ichimiya, Y. Akiba, Kyoichiro Ozawa, T. Liška, A. Taranenko, Kenta Shigaki, Jun Kikuchi, M. Nguyen, Takahiro Nakamura, M. Grosse Perdekamp, J. Egdemir, E. Vznuzdaev, S. P. Sorensen, Dylan Walker, M. Stepanov, Y. Tanaka, Andry Malala Rakotozafindrabe, Takao Sakaguchi, M. Mishra, S. Nagamiya, S. Dairaku, H. Al-Bataineh, X. R. Wang, A. Veicht, F. Kajihara, G. R. Young, Kazushi Miki, J. S. Kapustinsky, Brajesh K. Singh, Susumu Oda, A. Durum, Y. J. Mao, A. S. Nyanin, Seong H. Kim, T. Horaguchi, C. Klein-Boesing, K. Das, Christophe Pierre Suire, Alexander Milov, Rachid Nouicer, C. Baumann, I. Nakagawa, V. Babintsev, S. Kametani, Y. Nakamiya, Vaclav Vrba, Klaus Johannes Reygers, Minghui Liu, R. Tanabe, D. Layton, A. A. Vinogradov, T. Engelmore, Kenneth Francis Read, Y. Onuki, E. J. Desmond, J. G. Lajoie, Jason Kamin, A. D. Frawley, A. Hadj Henni, J. H. Kang, O. Zaudtke, Jan Rak, J. S. Haggerty, E. P. Hartouni, C. P. Singh, G. S. Kyle, O. Drapier, Frank Ellinghaus, K. Yamaura, F. Staley, L. Baksay, E. R. Kinney, Jiangyong Jia, R. Lacey, B. M. Johnson, Y. Goto, Beomkyu Kim, K. Boyle, S. Huang, R. Granier de Cassagnac, A. Adare, I. J. Choi, Wei Xie, A. Kravitz, S. P. Stoll, D. P. Morrison, S. Campbell, Charles Maguire, James Alexander, C. L. Woody, A. Berdnikov, S. Butsyk, K. B. Lee, V. Papavassiliou, D. E. Fields, D. Winter, D. Yu Peressounko, I. Younus, Y. S. Lai, M. Togawa, A. Kiss, S. Zhou, W. Holzmann, Maya Hachiya Shimomura, H. Liu, R. Averbeck, B. V. Jacak, Byung-Sik Hong, A. Bazilevsky, M. Virius, V. E. Semenov, K. Shoji, S. S.E. Rosendahl, Tatsuya Chujo, E. Kistenev, M. McCumber, A. Isupov, J. Sziklai, Y. I. Makdisi, D. Roach, G. Baksay, K. M. Kijima, Alexandre Lebedev, Hiroyuki Okada, D. M. Lee, I. V. Sourikova, G. Bunce, A. Soldatov, Henner Buesching, S. D. Rolnick, J. L. Charvet, Brian Cole, W. C. Chang, Rushan Han, Eva Haslum, B. Lenzi, A. Churyn, S. Sawada, J. Ying, A. Franz, A. Glenn, M. Kurosawa, Xingguo Li, Vladimir Samsonov, M. J. Tannenbaum, P. W. Stankus, D. Jouan, H. Torii, I. Ravinovich, K. Kiriluk, A. P.T. Palounek, M. Ouchida, M. Naglis, P. Chand, N. Means, J. Asai, R. Pak, D. Mukhopadhyay, S. Rembeczki, C. L. Silva, Marcus Hohlmann, P. Chung, J. T. Mitchell, R. Seidl, E. H. Kim, H. A. Gustafsson, N. Kamihara, J. Imrek, S. E. Williamson, Tamas Ferenc Csorgo, M. Bai, X. He, Shingo Sakai, C. Zhang, Vladislav Manko, M. Slunečka, J. L. Nagle, Kazuyoshi Kurita, P. Ružička, P. Mikeš, V. Peresedov, Masayasu Ishihara, A. Drees, Viktor Riabov, S. Belikov, Ajit Kumar Mohanty, Y. Fukao, T. A. Shibata, S. Esumi, T. Sato, P. Rosnet, K. O. Eyser, A. K. Purwar, O. Dietzsch, W. A. Zajc, V. Baublis, J. Koster, K. Fujiwara, E. T. Atomssa, H. Valle, T. Hester, A. Denisov, V. Cianciolo, Y. Tomita, D. Kawall, K. Tanida, H. Themann, Sergey Fokin, D. Isenhower, C. Vale, B. S. Chang, V. I. Kochetkov, A. Toia, Dipanwita Dutta, J. Jin, R. Bennett, E. M. Takagui, S. Batsouli, L. Mašek, H. Masui, A. K. Dubey, T. Kempel, Dong-Hun Kim, J. Murata, Christine Angela Aidala, J. Klay, T. Niita, Julia Velkovska, Gerd Joachim Kunde, I. Shein, A. A. Bickley, V-N. Tram, H. W. Van Hecke, N. Grau, M. Finger, K. Sedgwick, Motoi Inaba, Alberto Baldisseri, B. Love, Mate Csanad, David D'Enterria, Herve Borel, D. Lynch, A. G. Litvinenko, V. L. Rykov, T. Dahms, A. Kozlov, R. Seto, K. Haruna, K. N. Barish, J. Park, Y. Tsuchimoto, I. E. Yushmanov, Alexei Khanzadeev, E. Stenlund, T. V. Moukhanova, R. Vértesi, J. E. Frantz, M. L. Brooks, C. A. Ogilvie, T. K. Hemmick, M. Wysocki, Yasuo Miake, L. Kochenda, H. Qu, Hideki Hamagaki, K. Aoki, G. David, S. N. White, Zvi Hirsh Citron, K. Nakano, W. E. Sondheim, D. Ivanischev, P. A. Rukoyatkin, B. Meredith, John Hill, Toru Sugitate, François Fleuret, T. Ichihara, Matthew G. Reuter, Takahiro Fusayasu, Alexander Malakhov, D. Silvermyr, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, and I. Tserruya
Subjects: Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, General Physics and Astronomy, Inelastic scattering, Deep inelastic scattering, 01 natural sciences, Helicity, Nuclear physics, Baryon, Pion, 0103 physical sciences, Proton spin crisis, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: The double helicity asymmetry in neutral pion production for p(T) = 1 to 12 GeV/c was measured with the PHENIX experiment to access the gluon-spin contribution, Delta G, to the proton spin. Measured asymmetries are consistent with zero, and at a theory scale of mu 2 = 4 GeV2 a next to leading order QCD analysis gives Delta G([0.02,0.3]) = 0.2, with a constraint of -0.7 < Delta G([0.02,0.3]) < 0.5 at Delta chi(2) = 9 (similar to 3 sigma) for the sampled gluon momentum fraction (x) range, 0.02 to 0.3. The results are obtained using predictions for the measured asymmetries generated from four representative fits to polarized deep inelastic scattering data. We also consider the dependence of the Delta G constraint on the choice of the theoretical scale, a dominant uncertainty in these predictions.
Published: 2009
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35. Measurement of bottom versus charm as a function of transverse momentum with electron-hadron correlations in p + p collisions at square root of s = 200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, J, Asai, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, A T, Basye, S, Bathe, S, Batsouli, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J G, Boissevain, H, Borel, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, B S, Chang, W C, Chang, J-L, Charvet, S, Chernichenko, J, Chiba, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, T, Chujo, P, Chung, A, Churyn, V, Cianciolo, Z, Citron, C R, Cleven, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, K, Das, G, David, M B, Deaton, K, Dehmelt, H, Delagrange, A, Denisov, D, d'Enterria, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, A K, Dubey, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, F, Ellinghaus, W S, Emam, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, K O, Eyser, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, S, Gadrat, I, Garishvili, A, Glenn, H, Gong, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M Grosse, Perdekamp, T, Gunji, H-A, Gustafsson, T, Hachiya, A Hadj, Henni, C, Haegemann, J S, Haggerty, H, Hamagaki, R, Han, H, Harada, E P, Hartouni, K, Haruna, E, Haslum, R, Hayano, M, Heffner, T K, Hemmick, T, Hester, X, He, H, Hiejima, J C, Hill, R, Hobbs, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, J, Imrek, M, Inaba, Y, Inoue, D, Isenhower, L, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, O, Jinnouchi, B M, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, M, Kaneta, J H, Kang, H, Kanou, J, Kapustinsky, D, Kawall, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, J, Kikuchi, B I, Kim, D H, Kim, D J, Kim, E, Kim, S H, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, A, Kiyomichi, J, Klay, C, Klein-Boesing, L, Kochenda, V, Kochetkov, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, J, Kubart, G J, Kunde, N, Kurihara, K, Kurita, M, Kurosawa, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, Y-S, Lai, Y S, Lai, J G, Lajoie, D, Layton, A, Lebedev, D M, Lee, K B, Lee, M K, Lee, T, Lee, M J, Leitch, M A L, Leite, B, Lenzi, P, Liebing, T, Liska, A, Litvinenko, H, Liu, M X, Liu, X, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, L, Masek, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, P, Mikes, K, Miki, T E, Miller, A, Milov, S, Mioduszewski, M, Mishra, J T, Mitchell, M, Mitrovski, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, D, Mukhopadhyay, J, Murata, S, Nagamiya, Y, Nagata, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, T, Niita, B E, Norman, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, H, Ohnishi, H, Okada, K, Okada, M, Oka, O O, Omiwade, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, S, Rembeczki, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, D, Roach, G, Roche, S D, Rolnick, A, Romana, M, Rosati, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ruzicka, V L, Rykov, B, Sahlmueller, N, Saito, T, Sakaguchi, S, Sakai, K, Sakashita, H, Sakata, V, Samsonov, S, Sato, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, V, Semenov, R, Seto, D, Sharma, I, Shein, A, Shevel, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, S, Skutnik, M, Slunecka, 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, A, Sukhanov, J, Sziklai, T, Tabaru, S, Takagi, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, J, Tojo, L, Tomásek, Y, Tomita, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, A, Veicht, J, Velkovska, R, Vertesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, M, Wagner, D, Walker, X R, Wang, Y, Watanabe, F, Wei, J, Wessels, S N, White, D, Winter, C L, Woody, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, Z, Yasin, J, Ying, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, J, Zimányi, and L, Zolin
Abstract: The momentum distribution of electrons from semileptonic decays of charm and bottom quarks for midrapidity |y|0.35 in p+p collisions at square root of s=200 GeV is measured by the PHENIX experiment at the Relativistic Heavy Ion Collider over the transverse momentum range 2pT7 GeV/c. The ratio of the yield of electrons from bottom to that from charm is presented. The ratio is determined using partial D/D--e(+/-)K(-/+)X (K unidentified) reconstruction. It is found that the yield of electrons from bottom becomes significant above 4 GeV/c in pT. A fixed-order-plus-next-to-leading-log perturbative quantum chromodynamics calculation agrees with the data within the theoretical and experimental uncertainties. The extracted total bottom production cross section at this energy is sigma(bb)=3.2(-1.1)(+1.2)(stat)(-1.3)(+1.4)(syst)mub.
Published: 2009

36. Suppression Pattern of Neutral Pions at High Transverse Momentum inAu+AuCollisions atsNN=200 GeVand Constraints on Medium Transport Coefficients

Author: S. Esumi, Y. J. Mao, S. Kametani, B. Love, R. A. Soltz, Marie Germain, Minghui Liu, E. H. Kim, J. H. Kang, W. A. Zajc, David D'Enterria, J. S. Haggerty, M. Grosse Perdekamp, A. G. Litvinenko, Kenneth Francis Read, C. Silvestre, M. Chiu, Marisilvia Donadelli, V. Bumazhnov, Andry Malala Rakotozafindrabe, K. Hasuko, A. Romana, Roy A. Lacey, Rushan Han, M. N. Hagiwara, T. A. Shibata, V. Baublis, A. Denisov, V. Cianciolo, M. Issah, R. P. Pisani, F. Matathias, J. L. Drachenberg, K. Dehmelt, Evert Stenlund, Kensuke Homma, M. D. Malik, E. Vznuzdaev, Nikolay Tyurin, E. J. Desmond, A. Kozlov, K. S. Sim, J. Chiba, Hiroyuki Okada, Joakim Nystrand, Jen-Chieh Peng, D. Winter, M. P. Comets, Sergey Fokin, S. Chernichenko, H. Lim, M. N. Wagner, A. V. Kazantsev, S. P. Sorensen, D. Isenhower, A. Hadj Henni, Dylan Walker, R. Seto, K. Haruna, B. Bassalleck, D. Yu Peressounko, M. Togawa, J. Park, Florian Bauer, D. E. Fields, A. Toia, Eva Haslum, B. Lenzi, Y. Kwon, K. Boyle, Wei Xie, T. Horaguchi, G. C. Mishra, L. Mašek, A. Shevel, B. V. Jacak, Xiong Wang, Takao Sakaguchi, Y. S. Lai, M. Konno, P. Tarján, H. Hiejima, V. Dzhordzhadze, S. Takagi, Y. Tsuchimoto, T. Hester, C. Klein-Boesing, Dong Jo Kim, P. Mikeš, M. McCumber, A. K. Purwar, Osamu Jinnouchi, M. Ouchida, J. G. Lajoie, J. Asai, R. Pak, K. N. Barish, A. D. Frawley, Xiao-yan Li, Y. Nakamiya, T. Tabaru, Yoichiro Fukao, T. Hachiya, S. Batsouli, H. Kanou, Taku Gunji, H. Gong, J. Seele, I. E. Yushmanov, J. G. Boissevain, Senta Greene, Ingvar Otterlund, K. O. Eyser, K. Fujiwara, N. Kamihara, N. Grau, S. H. Aronson, K. Imai, O. Zaudtke, S. Afanasiev, A. Ster, Alexei Khanzadeev, G. Baksay, S. Kelly, N. N. Ajitanand, V-N. Tram, B. E. Norman, Masashi Kaneta, W. Holzmann, Christophe Pierre Suire, Alexander Milov, I. Nakagawa, Johannes Peter Wessels, M. T. Bjorndal, T. C. Awes, Kyoichiro Ozawa, T. Liška, R. Armendariz, I. J. Choi, A. Kravitz, E. O'Brien, Hiroaki Ohnishi, Shingo Sakai, F. Kajihara, K. Shoji, H. Sakata, J. Newby, O. Drapier, Frank Ellinghaus, Maya Hachiya Shimomura, Takahiro Nakamura, Kazuyoshi Kurita, Jun Kikuchi, Y. I. Makdisi, Motoi Inaba, Tadaaki Isobe, E. R. Kinney, D. P. Morrison, M. C. McCain, G. S. Kyle, C. L. Woody, C. Pinkenburg, S. Campbell, Susumu Oda, James Alexander, Charles Maguire, S. Leckey, J. S. Chai, H. Delagrange, A. Drees, T. Shohjoh, J. T. Mitchell, A. Durum, V. E. Semenov, A. P.T. Palounek, Anne Marie Sickles, M. Virius, N. Willis, J. Zimányi, M. L. Brooks, J. Kubart, P. W. Stankus, R. Seidl, Vladislav Manko, Tatsuya Chujo, R. Averbeck, I. Tserruya, P. L. McGaughey, D. S. Brown, Byung-Sik Hong, M. Slunečka, A. Bazilevsky, M. J. Tannenbaum, Yu. Efremenko, M. Stepanov, G. Roche, Philippe Rosnet, V. Singh, D. Hornback, Anders Oskarsson, O. O. Omiwade, Alexandre Lebedev, H. W. Van Hecke, S. Zhou, K. Das, T. V. Moukhanova, D. M. Lee, J. Gosset, M. Heffner, I. V. Sourikova, E. P. Hartouni, Steven E. Skutnik, J. P. Sullivan, C. Vale, D. Mukhopadhyay, S. Rembeczki, V. Peresedov, Y. Le Bornec, D. Bucher, T. L. Thomas, C. Zhang, B. S. Chang, C. A. Ogilvie, T. K. Hemmick, X. He, Xingguo Li, Yasuo Miake, Robert F. Hobbs, A. Taranenko, Hirohiko Sato, Kazushi Miki, Y. L. Yamaguchi, Christine Angela Aidala, J. Klay, G. R. Young, S. K. Tuli, Y. S. Kim, B. Komkov, Ryugo S. Hayano, Hans-Åke Gustafsson, M. Gonin, S. Bathe, Y. Riabov, L. Kochenda, J. L. Charvet, Norio Saito, Kenta Shigaki, H. Masui, Viktor Riabov, M. A. L. Leite, H. Pereira, A. K. Dubey, M. Nguyen, Jan Rak, A. S. Nyanin, S. Yokkaichi, J. M. Heuser, A. A. Bickley, T. Kawagishi, H. Qu, Josh Moss, R. Granier de Cassagnac, A. Adare, Debashish Pal, T. E. Miller, Hideki Hamagaki, K. Aoki, J. Egdemir, S. Sawada, Y. Berdnikov, G. David, J. Ying, V. Babintsev, A. Franz, Y. Cobigo, E. T. Atomssa, Jason Kamin, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, R. Vértesi, C. R. Cleven, C. Haegemann, Y. Inoue, Y. Akiba, A. Churyn, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, P. Chung, D. Jouan, J. Imrek, M. Holmes, J. E. Frantz, Vaclav Vrba, Klaus Johannes Reygers, E. Kistenev, P. J. Kroon, Dong-Hun Kim, W. S. Emam, Laurent Bernard Aphecetche, M. Mitrovski, Herve Borel, D. Lynch, A. Glenn, A. Kiss, M. Wysocki, V. L. Rykov, T. Dahms, Z. Yasin, H. Harada, I. Ravinovich, Henner Buesching, Y. Nagata, M. B. Deaton, S. F. Pate, S. S. Ryu, Marcus Hohlmann, Y. Tanaka, R. Bennett, T. K. Shea, Ahmed Al-Jamel, M. Finger, H. Al-Bataineh, V. Papavassiliou, Sébastien Gadrat, F. Staley, L. Baksay, H. Pei, M. Rosati, Bruno Espagnon, A. A. Vinogradov, Henrik Tydesjö, Jiangyong Jia, Y. Goto, O. Dietzsch, H. Valle, L. Tomášek, Julia Velkovska, V. S. Pantuev, D. Kawall, K. Tanida, M. Harvey, V. I. Kochetkov, D. Silvermyr, J. Murata, Gerd Joachim Kunde, I. Shein, Junji Tojo, Alberto Baldisseri, K. Okada, B. Sahlmueller, H. En'yo, P. Constantin, M. J. Leitch, R. S. Towell, I. Garishvili, Akio Kiyomichi, M. Naglis, J. M. Burward-Hoy, C. L. Silva, N. Kurihara, W. C. Smith, Tae-Yeon Lee, Martin Purschke, F. Gastineau, D. Kotchetkov, A. Morreale, Z. Fraenkel, Masayasu Ishihara, S. Belikov, K. S. Joo, M. K. Lee, Susumu Sato, D. Sharma, M. G. Hur, C. Y. Chi, B. Azmoun, A. Král, M. J. Kweon, A. Deshpande, M. Oka, A. Dion, Atsushi Taketani, A. Enokizono, Y. Watanabe, I. Younus, A. Soldatov, C. P. Singh, B. M. Johnson, A. Isupov, S. Butsyk, Vladimir Samsonov, Tamas Ferenc Csorgo, J. L. Nagle, J. Sziklai, Brian Cole, Saskia Mioduszewski, J. Jin, E. M. Takagui, S. N. White, K. Nakano, W. E. Sondheim, P. A. Rukoyatkin, T. Ichihara, Matthew G. Reuter, Takahiro Fusayasu, I. D. Ojha, Alexander Malakhov, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, S. Y. Fung, John Hill, H. A. Torii, Toru Sugitate, L. D. Isenhower, François Fleuret, B. Forestier, and Mate Csanad
Subjects: Quenching, Physics, Spectral shape analysis, 010308 nuclear & particles physics, Root (chord), General Physics and Astronomy, Parton, Transport theory, 01 natural sciences, Measure (mathematics), Nuclear physics, Pion, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract: For Au + Au collisions at 200 GeV, we measure neutral pion production with good statistics for transverse momentum, p(T), up to 20 GeV/c. A fivefold suppression is found, which is essentially constant for 5 in the parton quenching model. The spectral shape is similar for all collision classes, and the suppression does not saturate in Au + Au collisions.
Published: 2008
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37. Gluon-spin contribution to the proton spin from the double-helicity asymmetry in inclusive pi0 production in polarized p+p collisions at [sqrt]s=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, L, Aphecetche, J, Asai, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, A T, Basye, S, Bathe, S, Batsouli, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J G, Boissevain, H, Borel, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, P, Chand, B S, Chang, W C, Chang, J-L, Charvet, S, Chernichenko, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, T, Chujo, P, Chung, A, Churyn, V, Cianciolo, Z, Citron, B A, Cole, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, K, Das, G, David, A, Denisov, D, d'Enterria, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, A K, Dubey, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, F, Ellinghaus, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, K O, Eyser, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, I, Garishvili, A, Glenn, H, Gong, M, Gonin, J, Gosset, Y, Goto, R Granier, de Cassagnac, N, Grau, S V, Greene, M Grosse, Perdekamp, T, Gunji, H-A, Gustafsson, A Hadj, Henni, J S, Haggerty, H, Hamagaki, R, Han, E P, Hartouni, K, Haruna, E, Haslum, R, Hayano, M, Heffner, T K, Hemmick, T, Hester, X, He, J C, Hill, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, J, Imrek, M, Inaba, D, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, B M, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, J H, Kang, J, Kapustinsky, D, Kawall, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, J, Kikuchi, B I, Kim, D H, Kim, D J, Kim, E, Kim, S H, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, J, Klay, C, Klein-Boesing, L, Kochenda, V, Kochetkov, B, Komkov, M, Konno, J, Koster, A, Kozlov, A, Král, A, Kravitz, G J, Kunde, K, Kurita, M, Kurosawa, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, Y S, Lai, J G, Lajoie, D, Layton, A, Lebedev, D M, Lee, K B, Lee, T, Lee, M J, Leitch, M A L, Leite, B, Lenzi, P, Liebing, T, Liska, A, Litvinenko, H, Liu, M X, Liu, X, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, L, Masek, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, P, Mikes, K, Miki, A, Milov, M, Mishra, J T, Mitchell, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, D, Mukhopadhyay, J, Murata, S, Nagamiya, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, T, Niita, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, H, Okada, K, Okada, M, Oka, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, S, Rembeczki, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, D, Roach, G, Roche, S D, Rolnick, M, Rosati, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ruzicka, V L, Rykov, B, Sahlmueller, N, Saito, T, Sakaguchi, S, Sakai, K, Sakashita, V, Samsonov, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, V, Semenov, R, Seto, D, Sharma, I, Shein, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, M, Slunecka, 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, A, Sukhanov, J, Sziklai, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, S, Taneja, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, L, Tomásek, Y, Tomita, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, A, Veicht, J, Velkovska, R, Vertesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, D, Walker, X R, Wang, Y, Watanabe, F, Wei, J, Wessels, S N, White, S, Williamson, D, Winter, C L, Woody, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, J, Ying, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, and L, Zolin
Abstract: The double helicity asymmetry in neutral pion production for pT=1 to 12 GeV/c was measured with the PHENIX experiment to access the gluon-spin contribution, DeltaG, to the proton spin. Measured asymmetries are consistent with zero, and at a theory scale of micro2=4 GeV2 a next to leading order QCD analysis gives DeltaG[0.02,0.3]=0.2, with a constraint of -0.7DeltaG[0.02,0.3]0.5 at Deltachi2=9 (approximately 3sigma) for the sampled gluon momentum fraction (x) range, 0.02 to 0.3. The results are obtained using predictions for the measured asymmetries generated from four representative fits to polarized deep inelastic scattering data. We also consider the dependence of the DeltaG constraint on the choice of the theoretical scale, a dominant uncertainty in these predictions.
Published: 2008

38. J/ψProduction insNN=200 GeVCu+CuCollisions

Author: Martin Purschke, A. Shevel, Robert F. Hobbs, D. Kotchetkov, A. Morreale, G. S. Kyle, A. Kiss, Z. Yasin, Z. Fraenkel, James Alexander, R. Averbeck, Byung-Sik Hong, T. Hester, H. Pei, Henner Buesching, C. L. Woody, A. Bazilevsky, Philippe Rosnet, M. Issah, M. D. Malik, E. Vznuzdaev, Youngil Kwon, Alexandre Lebedev, A. Hadj Henni, D. M. Lee, C. R. Cleven, C. Haegemann, Y. Inoue, V-N. Tram, K. Boyle, Debashish Pal, S. Sawada, Marcus Hohlmann, Saskia Mioduszewski, Wei Xie, E. J. Desmond, J. Chiba, A. Deshpande, Motoi Inaba, M. Togawa, J. Park, Dong-Hun Kim, E. H. Kim, Takao Sakaguchi, K. O. Eyser, A. K. Purwar, K. Fujiwara, J. Ying, A. Franz, J. Jin, E. M. Takagui, L. Tomášek, Y. J. Mao, S. P. Sorensen, K. Das, Dylan Walker, J. Egdemir, O. Dietzsch, Y. Tsuchimoto, S. Kametani, V. S. Pantuev, Jason Kamin, C. Klein-Boesing, Tadaaki Isobe, D. E. Fields, J. G. Lajoie, T. Hachiya, L. Aphecetche, C. P. Singh, B. M. Johnson, E. P. Hartouni, S. P. Stoll, H. Valle, Johannes Peter Wessels, I. E. Yushmanov, B. V. Jacak, A. D. Frawley, T. Tabaru, Junji Tojo, J. H. Kang, J. S. Haggerty, A. Romana, S. S.E. Rosendahl, G. Bunce, N. Grau, Mate Csanad, K. Shoji, I. J. Choi, A. Kravitz, M. Gonin, A. Isupov, C. Suire, Hiroyuki Okada, A. Churyn, D. Lynch, Julia Velkovska, Eva Haslum, B. Lenzi, R. Vértesi, S. H. Aronson, K. Okada, B. Sahlmueller, D. Jouan, I. Younus, J. Sziklai, P. L. McGaughey, M. McCumber, H. En'yo, M. J. Leitch, Charles Maguire, H. W. Van Hecke, P. W. Stankus, H. Pereira, X. He, O. O. Omiwade, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, M. Mitrovski, Andry Malala Rakotozafindrabe, K. S. Joo, V. L. Rykov, T. Dahms, M. Rosati, Y. Nakamiya, W. Holzmann, M. Chiu, Brian Cole, David D'Enterria, V. Peresedov, Y. L. Yamaguchi, A. Soldatov, S. Bathe, B. Komkov, Hiroaki Ohnishi, Agneta Oskarsson, M. Wysocki, S. Afanasiev, Maya Hachiya Shimomura, A. Ster, A. A. Vinogradov, S. Esumi, Y. S. Lai, J. E. Frantz, Alexander Milov, I. Nakagawa, R. S. Towell, E. Kistenev, Jiangyong Jia, I. Garishvili, Akio Kiyomichi, P. Tarján, M. N. Wagner, Norio Saito, Y. Berdnikov, Y. Akiba, M. A. L. Leite, J. Newby, M. Mishra, S. Nagamiya, Alexei Khanzadeev, O. Drapier, Frank Ellinghaus, G. Baksay, I. Ravinovich, Y. Goto, Y. I. Makdisi, Steven E. Skutnik, E. Stenlund, Y. Nagata, E. R. Kinney, N. Kurihara, D. P. Morrison, W. A. Zajc, N. N. Ajitanand, H. Sakata, Vaclav Vrba, Klaus Johannes Reygers, D. Hornback, C. A. Ogilvie, H. Harada, T. K. Hemmick, S. Campbell, Yasuo Miake, Roy A. Lacey, Rushan Han, V. E. Semenov, M. Naglis, M. Heffner, J. G. Boissevain, A. Taranenko, J. Zimányi, Masashi Kaneta, C. Y. Chi, M. K. Lee, Tatsuya Chujo, K. Ozawa, K. Dehmelt, S. Batsouli, V. Baublis, A. Denisov, Takahiro Nakamura, Xingguo Li, H. Masui, A. K. Dubey, V. Babintsev, Jen-Chieh Peng, T. Ichihara, V. Cianciolo, L. Kochenda, C. L. Silva, H. Qu, J. T. Mitchell, S. F. Pate, R. Bennett, M. Finger, M. J. Tannenbaum, Kazushi Miki, H. Al-Bataineh, S. Butsyk, A. A. Bickley, M. B. Deaton, Vladimir Samsonov, C. Pinkenburg, Sergey Fokin, T. V. Moukhanova, O. Zaudtke, Y. Tanaka, Minghui Liu, Dong Jo Kim, Susumu Oda, Hideki Hamagaki, K. Aoki, R. Pak, Osamu Jinnouchi, G. David, N. Kamihara, X. R. Wang, Masayasu Ishihara, R. Armendariz, B. Love, M. Virius, D. Mukhopadhyay, S. Rembeczki, M. Stepanov, G. Roche, T. Horaguchi, Susumu Sato, A. Durum, R. Seidl, Kazuyoshi Kurita, Vladislav Manko, M. Slunečka, I. Tserruya, Yu. Efremenko, S. Belikov, A. Drees, V. Singh, V. Papavassiliou, J. Kubart, Sébastien Gadrat, J. Gosset, Catherine Micaela Silvestre, A. Glenn, Tamas Ferenc Csorgo, Kenneth Francis Read, F. Staley, I. V. Sourikova, A. G. Litvinenko, D. Kawall, J. L. Nagle, K. Tanida, Senta Greene, C. Vale, B. S. Chang, Christine Angela Aidala, J. Klay, V. I. Kochetkov, S. Yokkaichi, H. A. Gustafsson, B. E. Norman, J. Murata, M. Ouchida, E. O'Brien, A. Kozlov, R. A. Soltz, H. Borel, J. Asai, Matthew G. Reuter, F. Matathias, Kensuke Homma, Gerd Joachim Kunde, A. V. Kazantsev, R. Seto, M. Grosse Perdekamp, Shingo Sakai, I. Shein, L. Baksay, T. L. Thomas, Takahiro Fusayasu, C. Zhang, Ryugo S. Hayano, P. Constantin, S. Chernichenko, K. Haruna, B. Bassalleck, Y. Riabov, M. Konno, Kenta Shigaki, P. Mikeš, M. Nguyen, A. S. Nyanin, Yoichiro Fukao, Viktor Riabov, T. C. Awes, T. Liška, S. Takagi, D. Winter, D. Yu Peressounko, Jun Kikuchi, K. N. Barish, A. P.T. Palounek, M. L. Brooks, Alexander Malakhov, D. Silvermyr, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, John Hill, H. A. Torii, Toru Sugitate, L. D. Isenhower, François Fleuret, S. N. White, D. Sharma, B. Azmoun, A. Král, M. J. Kweon, M. Oka, A. Dion, Atsushi Taketani, A. Enokizono, Anne Marie Sickles, G. R. Young, Jan Rak, R. Granier de Cassagnac, A. Adare, K. S. Sim, V. Dzhordzhadze, Y. Watanabe, H. Hiejima, K. Imai, T. A. Shibata, D. Isenhower, A. Toia, L. Mašek, J. L. Charvet, T. E. Miller, E. T. Atomssa, P. Chung, W. S. Emam, H. Kanou, Taku Gunji, H. Gong, J. Seele, F. Kajihara, H. Delagrange, S. Zhou, A. Baldisseri, K. Nakano, W. E. Sondheim, P. A. Rukoyatkin, and Tae-Yeon Lee
Subjects: Physics, Range (particle radiation), Quantitative Biology::Neurons and Cognition, 010308 nuclear & particles physics, Analytical chemistry, General Physics and Astronomy, chemistry.chemical_element, Plasma, Nuclear matter, 7. Clean energy, 01 natural sciences, Copper, Strange matter, chemistry, 0103 physical sciences, Energy density, High Energy Physics::Experiment, Rapidity, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract: Yields for J/psi production in Cu+Cu collisions at root s(NN) = 200 GeV have been measured over the rapidity range |y|< 2.2 and compared with results in p+p and Au+Au collisions at the same energy. The Cu+Cu data offer greatly improved precision over existing Au+Au data for J/psi production in collisions with small to intermediate numbers of participants, in the range where the quark-gluon plasma transition threshold is predicted to lie. Cold nuclear matter estimates based on ad hoc fits to d+Au data describe the Cu+Cu data up to N-part similar to 50, corresponding to a Bjorken energy density of at least 1.5 GeV/fm(3).
Published: 2008
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39. Onset of pi(0) suppression studied in Cu+Cu collisions at sqrt S NN=22.4, 62.4, and 200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, J, Asai, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, M, Bai, G, Baksay, L, Baksay, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, A T, Basye, S, Bathe, S, Batsouli, V, Baublis, C, Baumann, A, Bazilevsky, S, Belikov, R, Bennett, A, Berdnikov, Y, Berdnikov, A A, Bickley, J G, Boissevain, H, Borel, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, C M, Camacho, S, Campbell, B S, Chang, W C, Chang, J-L, Charvet, S, Chernichenko, J, Chiba, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, T, Chujo, P, Chung, A, Churyn, V, Cianciolo, Z, Citron, C R, Cleven, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, S, Dairaku, K, Das, G, David, M B, Deaton, K, Dehmelt, H, Delagrange, A, Denisov, D, d'Enterria, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, K A, Drees, A K, Dubey, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, F, Ellinghaus, W S, Emam, T, Engelmore, A, Enokizono, H, En'yo, S, Esumi, K O, Eyser, B, Fadem, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, S, Gadrat, I, Garishvili, A, Glenn, H, Gong, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-A, Gustafsson, T, Hachiya, A, Hadj Henni, C, Haegemann, J S, Haggerty, H, Hamagaki, R, Han, H, Harada, E P, Hartouni, K, Haruna, E, Haslum, R, Hayano, M, Heffner, T K, Hemmick, T, Hester, X, He, H, Hiejima, J C, Hill, R, Hobbs, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, S, Huang, T, Ichihara, R, Ichimiya, Y, Ikeda, K, Imai, J, Imrek, M, Inaba, Y, Inoue, D, Isenhower, L, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, D, Ivanischev, B V, Jacak, J, Jia, J, Jin, O, Jinnouchi, B M, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, M, Kaneta, J H, Kang, H, Kanou, J, Kapustinsky, D, Kawall, A V, Kazantsev, T, Kempel, A, Khanzadeev, K M, Kijima, J, Kikuchi, B I, Kim, D H, Kim, D J, Kim, E, Kim, S H, Kim, E, Kinney, K, Kiriluk, A, Kiss, E, Kistenev, A, Kiyomichi, J, Klay, C, Klein-Boesing, L, Kochenda, V, Kochetkov, B, Komkov, M, Konno, J, Koster, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, J, Kubart, G J, Kunde, N, Kurihara, K, Kurita, M, Kurosawa, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, Y-S, Lai, Y S, Lai, J G, Lajoie, D, Layton, A, Lebedev, D M, Lee, K B, Lee, M K, Lee, T, Lee, M J, Leitch, M A L, Leite, B, Lenzi, P, Liebing, T, Liska, A, Litvinenko, H, Liu, M X, Liu, X, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, E, Mannel, Y, Mao, L, Masek, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, N, Means, B, Meredith, Y, Miake, P, Mikes, K, Miki, T E, Miller, A, Milov, S, Mioduszewski, M, Mishra, J T, Mitchell, M, Mitrovski, A K, Mohanty, Y, Morino, A, Morreale, D P, Morrison, T V, Moukhanova, D, Mukhopadhyay, J, Murata, S, Nagamiya, Y, Nagata, J L, Nagle, M, Naglis, M I, Nagy, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, T, Niita, B E, Norman, R, Nouicer, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, H, Ohnishi, H, Okada, K, Okada, M, Oka, O O, Omiwade, Y, Onuki, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, S, Rembeczki, M, Reuter, K, Reygers, V, Riabov, Y, Riabov, D, Roach, G, Roche, S D, Rolnick, A, Romana, M, Rosati, S S E, Rosendahl, P, Rosnet, P, Rukoyatkin, P, Ruzicka, V L, Rykov, B, Sahlmueller, N, Saito, T, Sakaguchi, S, Sakai, K, Sakashita, H, Sakata, V, Samsonov, S, Sato, T, Sato, S, Sawada, K, Sedgwick, J, Seele, R, Seidl, A Yu, Semenov, V, Semenov, R, Seto, D, Sharma, I, Shein, A, Shevel, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, P, Shukla, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, B K, Singh, C P, Singh, V, Singh, S, Skutnik, M, Slunecka, 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, A, Sukhanov, J, Sziklai, T, Tabaru, S, Takagi, E M, Takagui, A, Taketani, R, Tanabe, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, H, Themann, T L, Thomas, M, Togawa, A, Toia, J, Tojo, L, Tomásek, Y, Tomita, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, vanHecke, A, Veicht, J, Velkovska, R, Vertesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, M, Wagner, D, Walker, X R, Wang, Y, Watanabe, F, Wei, J, Wessels, S N, White, D, Winter, C L, Woody, M, Wysocki, W, Xie, Y L, Yamaguchi, K, Yamaura, R, Yang, A, Yanovich, Z, Yasin, J, Ying, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, J, Zimányi, and L, Zolin
Abstract: Neutral pion transverse momentum (p(T)) spectra at midrapidity (|y| less than or approximately 0.35) were measured in Cu+Cu collisions at sqrt[s(NN)]=22.4, 62.4, and 200 GeV. Relative to pi_(0) yields in p+p collisions scaled by the number of inelastic nucleon-nucleon collisions (N(coll) the pi_(0) yields for p(T) more than or approximately 2 GeV/c in central Cu+Cu collisions are suppressed at 62.4 and 200 GeV whereas an enhancement is observed at 22.4 GeV. A comparison with a jet-quenching model suggests that final state parton energy loss dominates in central Cu+Cu collisions at 62.4 and 200 GeV, while the enhancement at 22.4 GeV is consistent with nuclear modifications in the initial state alone.
Published: 2008

40. J/psi production in sqrt s_NN=200 GeV Cu+Cu collisions

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, J, Asai, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, G, Baksay, L, Baksay, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, R, Bennett, Y, Berdnikov, A A, Bickley, J G, Boissevain, H, Borel, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, B S, Chang, J-L, Charvet, S, Chernichenko, J, Chiba, C Y, Chi, M, Chiu, I J, Choi, T, Chujo, P, Chung, A, Churyn, V, Cianciolo, C R, Cleven, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, K, Das, G, David, M B, Deaton, K, Dehmelt, H, Delagrange, A, Denisov, D, d'Enterria, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, A K, Dubey, A, Durum, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, F, Ellinghaus, W S, Emam, A, Enokizono, H, En'yo, S, Esumi, K O, Eyser, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, S, Gadrat, I, Garishvili, A, Glenn, H, Gong, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-A, Gustafsson, T, Hachiya, A, Hadj Henni, C, Haegemann, J S, Haggerty, H, Hamagaki, R, Han, H, Harada, E P, Hartouni, K, Haruna, E, Haslum, R, Hayano, M, Heffner, T K, Hemmick, T, Hester, X, He, H, Hiejima, J C, Hill, R, Hobbs, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, T, Ichihara, K, Imai, M, Inaba, Y, Inoue, D, Isenhower, L, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, B V, Jacak, J, Jia, J, Jin, O, Jinnouchi, B M, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, M, Kaneta, J H, Kang, H, Kanou, D, Kawall, A V, Kazantsev, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, E, Kim, E, Kinney, A, Kiss, E, Kistenev, A, Kiyomichi, J, Klay, C, Klein-Boesing, L, Kochenda, V, Kochetkov, B, Komkov, M, Konno, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, J, Kubart, G J, Kunde, N, Kurihara, K, Kurita, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, Y-S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, M K, Lee, T, Lee, M J, Leitch, M A L, Leite, B, Lenzi, T, Liska, A, Litvinenko, M X, Liu, X, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, Y, Mao, L, Masek, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, Y, Miake, P, Mikes, K, Miki, T E, Miller, A, Milov, S, Mioduszewski, M, Mishra, J T, Mitchell, M, Mitrovski, A, Morreale, D P, Morrison, T V, Moukhanova, D, Mukhopadhyay, J, Murata, S, Nagamiya, Y, Nagata, J L, Nagle, M, Naglis, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, B E, Norman, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, H, Ohnishi, H, Okada, K, Okada, M, Oka, O O, Omiwade, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, S, Rembeczki, 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, B, Sahlmueller, N, Saito, T, Sakaguchi, S, Sakai, H, Sakata, V, Samsonov, S, Sato, S, Sawada, J, Seele, R, Seidl, V, Semenov, R, Seto, D, Sharma, I, Shein, A, Shevel, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, C P, Singh, V, Singh, S, Skutnik, M, Slunecka, 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, Sziklai, T, Tabaru, S, Takagi, E M, Takagui, A, Taketani, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, T L, Thomas, M, Togawa, A, Toia, J, Tojo, L, Tomásek, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, J, Velkovska, R, Vertesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, M, Wagner, D, Walker, X R, Wang, Y, Watanabe, J, Wessels, S N, White, D, Winter, C L, Woody, M, Wysocki, W, Xie, Y L, Yamaguchi, A, Yanovich, Z, Yasin, J, Ying, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, J, Zimányi, and L, Zolin
Abstract: Yields for J/psi production in Cu+Cu collisions at sqrt s_NN=200 GeV have been measured over the rapidity range |y|2.2 and compared with results in p+p and Au+Au collisions at the same energy. The Cu+Cu data offer greatly improved precision over existing Au+Au data for J/psi production in collisions with small to intermediate numbers of participants, in the range where the quark-gluon plasma transition threshold is predicted to lie. Cold nuclear matter estimates based on ad hoc fits to d+Au data describe the Cu+Cu data up to N_part approximately 50, corresponding to a Bjorken energy density of at least 1.5 GeV/fm(3).
Published: 2007

41. Publisher’s Note:J/ψProduction versus Centrality, Transverse Momentum, and Rapidity inAu+AuCollisions atsNN=200 GeV[Phys. Rev. Lett.98, 232301 (2007)]

Author: J. Gosset, J. P. Sullivan, S. Yokkaichi, J. M. Heuser, H. Van Hecke, J. G. Boissevain, Masashi Kaneta, C. Pinkenburg, M. Stepanov, G. S. Kyle, G. Roche, N. Willis, James Alexander, K. Dehmelt, T. L. Thomas, Tae-Yeon Lee, Martin Purschke, C. A. Aidala, F. Gastineau, K. Tanida, J. H. Kang, J. S. Haggerty, A. Romana, J. L. Drachenberg, Y. S. Lai, R. A. Soltz, Jen-Chieh Peng, R. Averbeck, Byung-Sik Hong, M. Chiu, P. Rukovatkin, T. A. Shibata, D. E. Fields, A. Bazilevsky, Y. Fukao, A. Shevel, A. Ster, V. I. Kochetkov, J. Egdemir, Jason Kamin, D. Kotchetkov, B. V. Jacak, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, M. McCumber, A. K. Purwar, J. Newby, W. A. Zajc, O. Zaudtke, M. Grosse Perdekamp, Ryugo S. Hayano, Y. Nakamiya, D. Lynch, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, Alexandre Lebedev, Andry Malala Rakotozafindrabe, D. M. Lee, J. Chiba, D. Isenhower, J.-G. Park, O. Dietzsch, A. Morreale, A. Toia, A. Kiss, Z. Yasin, Henner Buesching, Z. Fraenkel, T. Hester, S. Kametani, C. P. Singh, M. Virius, Gerd Joachim Kunde, I. Shein, Dong Jo Kim, Osamu Jinnouchi, G. Baksay, K. Shoji, M. T. Bjorndal, X. He, Y. Riabov, Kenta Shigaki, O. O. Omiwade, M. Nguyen, L. Mašek, H. Valle, A. Churyn, Minghui Liu, B. M. Johnson, A. Isupov, V. Baublis, A. Denisov, V. Cianciolo, A. S. Nyanin, Youngil Kwon, D. Jouan, G. C. Mishra, V. Peresedov, Marcus Hohlmann, Robert Vertesi, S. Belikov, K. S. Joo, Margaret Harvey, V-N. Tram, N. Grau, D. Mukhopadhyay, Christophe Pierre Suire, Alexander Milov, I. Nakagawa, P. W. Stankus, Y. Cobigo, J. Rak, M. Heffner, S. Bathe, B. Komkov, J. Murata, J. L. Charvet, R. Lacey, Kenneth Francis Read, R. Granier de Cassagnac, J. Sziklai, A. Adare, I. Ravinovich, Julia Velkovska, M. Rosati, N. Kamihara, Takao Sakaguchi, C. Klein-Boesing, Norio Saito, D. Winter, E. J. Desmond, P. Rosnet, M. A. L. Leite, K. O. Eyser, K. Fujiwara, Sergey Fokin, C. L. Woody, Kensuke Homma, O. Drapier, Frank Ellinghaus, F. Matathias, R. Armendariz, D. Yu Peressounko, M. Togawa, A. D. Frawley, T. Tabaru, Y. L. Yamaguchi, Brian Cole, Motoi Inaba, R. S. Towell, Alberto Baldisseri, Mate Csanad, E. R. Kinney, Y. Nagata, S. Chernichenko, D. P. Morrison, H. Lim, T. E. Miller, E. T. Atomssa, Rushan Han, M. N. Hagiwara, S. H. Aronson, P. Tarján, Florian Bauer, Sean A. Kelly, S. Esumi, Tadaaki Isobe, D. Sharma, S. Campbell, S. S. Ryu, B. Bassalleck, A. Enokizono, A. Taranenko, Vladimir Samsonov, A. Drees, V. Babintsev, Y. Tsuchimoto, J. S. Chai, I. Garishvili, Akio Kiyomichi, B. Azmoun, Y. J. Mao, N. N. Ajitanand, V. E. Semenov, J. Zimányi, Bruno Espagnon, I. Otterlund, M. Konno, Kazushi Miki, W. Holzmann, Maya Hachiya Shimomura, P. Chung, J. Kubart, A. Král, M. J. Kweon, A. A. Vinogradov, Henrik Tydesjö, Y. Le Bornec, K. Das, T. Horaguchi, Tatsuya Chujo, C. R. Cleven, R. Bennett, J. T. Mitchell, I. Tserruya, Y. I. Makdisi, M. Naglis, C. Haegemann, Y. Inoue, I. E. Yushmanov, M. Holmes, M. Slunečka, N. Kurihara, Takahiro Nakamura, David D'Enterria, H. Masui, A. K. Dubey, E. P. Hartouni, Yu. Efremenko, V. Singh, R. Seidl, Vladislav Manko, Alexei Khanzadeev, Jiangyong Jia, Y. Goto, W. S. Emam, C. L. Silva, H. A. Gustafsson, D. H. Kim, Ahmed Al-Jamel, M. Finger, Tamas Ferenc Csorgo, I. V. Sourikova, J. M. Burward-Hoy, E. Stenlund, H. Sakata, Susumu Oda, C. A. Ogilvie, A. Dion, H. Kanou, Agneta Oskarsson, K. Hasuko, R. P. Pisani, A. A. Bickley, P. J. Kroon, J. E. Frantz, J. L. Nagle, C. Vale, M. J. Tannenbaum, Senta Greene, T. K. Hemmick, Taku Gunji, H. Gong, J. Seele, Atsushi Taketani, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, T. Shohjoh, C. Zhang, A. Durum, Nikolay Tyurin, Masayasu Ishihara, Hiroyuki Okada, Herve Borel, A. V. Kazantsev, Yasuo Miake, B. S. Chang, J. Klay, X. H. Li, F. Kajihara, M. G. Hur, C. Y. Chi, Vaclav Vrba, Klaus Johannes Reygers, Joakim Nystrand, M. N. Wagner, Catherine Micaela Silvestre, D. S. Brown, Susumu Sato, K. S. Sim, Eva Haslum, S. Takagi, B. E. Norman, E. O'Brien, H. Delagrange, A. Glenn, Hirohiko Sato, F. Staley, M. Ouchida, S. Rembeczki, L. Tomášek, L. Kochenda, M. Issah, P. Mikeš, S. K. Tuli, D. Bucher, Y. Watanabe, T. V. Moukhanova, S. Butsyk, Eunja Kim, Steven E. Skutnik, Makoto Oka, V. L. Rykov, T. Dahms, J. Asai, T. Kawagishi, Viktor Riabov, Saskia Mioduszewski, S. Zhou, K. N. Barish, S. Batsouli, T. C. Awes, Kyoichiro Ozawa, T. Liška, Y. S. Kim, H. Hiejima, H. Qu, I. Younus, Jun Kikuchi, Shingo Sakai, Hideki Hamagaki, K. Aoki, K. Imai, G. David, A. Soldatov, D. Pal, J. Jin, E. M. Takagui, Anne Marie Sickles, A. P.T. Palounek, G. R. Young, W. C. Smith, M. K. Lee, V. S. Pantuev, Junji Tojo, K. Okada, B. Sahlmueller, H. En'yo, P. Constantin, M. J. Leitch, M. L. Brooks, S. F. Pate, B. Love, Marie Germain, H. Al-Bataineh, X. R. Wang, A. G. Litvinenko, A. Kozlov, R. Seto, K. Haruna, V. Papavassiliou, Sébastien Gadrat, J. Franz, V. Dzhordzhadze, M. Mitrovski, M. Wysocki, Robert F. Hobbs, S. Sawada, J. Ying, A. Franz, S. N. White, A. Hadj Henni, Wei Xie, K. Nakano, W. E. Sondheim, A. Deshpande, H. Pei, K. Boyle, M. B. Deaton, D. Hornback, S. Y. Fung, Y. Tanaka, T. K. Shea, L. Baksay, Charles Maguire, S. Leckey, Josh Moss, John Hill, Bruno Lenzi, E. Kistenev, I. J. Choi, H. Harada, H. A. Torii, Toru Sugitate, L. D. Isenhower, P. L. McGaughey, François Fleuret, B. Forestier, T. Ichihara, Matthew G. Reuter, Takahiro Fusayasu, S. V. Afanasiev, D. Kawall, L. Aphecetche, M. C. McCain, I. D. Ojha, Alexander Malakhov, D. Silvermyr, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, Johannes Peter Wessels, M. D. Malik, E. Vznuzdaev, S. P. Sorensen, Dylan Walker, J. G. Lajoie, T. Hachiya, A. Kravitz, Hiroaki Ohnishi, Xingguo Li, M. Gonin, K. Kurita, H. Pereira, and R. Pak
Subjects: Nuclear physics, Physics, Quantum electrodynamics, Transverse momentum, General Physics and Astronomy, Rapidity, Centrality
Published: 2007
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42. J/ψProduction versus Transverse Momentum and Rapidity inp+pCollisions ats=200 GeV

Author: J. Newby, G. Roche, D. Hornback, M. Heffner, A. Taranenko, Kazushi Miki, J. T. Mitchell, Alexei Khanzadeev, S. N. White, Hiroyuki Okada, Eva Haslum, B. Lenzi, X. He, D. Kawall, K. Tanida, R. Seidl, E. Stenlund, Vladislav Manko, M. Slunečka, V. S. Pantuev, O. Zaudtke, O. O. Omiwade, V. Peresedov, H. Sakata, V. I. Kochetkov, R. A. Soltz, C. Silvestre, Christophe Pierre Suire, Alexander Milov, I. Nakagawa, Tae-Yeon Lee, Martin Purschke, Robert F. Hobbs, S. Belikov, A. Kiss, Hiroaki Ohnishi, N. N. Ajitanand, Frank Ellinghaus, M. Rosati, H. Kanou, Taku Gunji, H. Gong, J. Seele, Marisilvia Donadelli, T. Hester, V. Bumazhnov, Junji Tojo, Saskia Mioduszewski, E. R. Kinney, J. Chiba, D. P. Morrison, R. Pak, J. Murata, C. Vale, B. S. Chang, M. B. Deaton, Takahiro Nakamura, Debashish Pal, F. Kajihara, G. S. Kyle, M. Virius, N. Kamihara, Z. Yasin, Henner Buesching, S. Sawada, Susumu Oda, Christine Angela Aidala, T. Lika, J. Ying, S. Campbell, A. Franz, Anne Marie Sickles, J. Klay, A. Durum, K. Okada, S. Batsouli, D. Kotchetkov, V. E. Semenov, Marcus Hohlmann, P. Mike, R. Armendariz, H. Delagrange, Youngil Kwon, Kazuyoshi Kurita, J. Zimányi, Gerd Joachim Kunde, James Alexander, H. Masui, A. K. Dubey, B. Sahlmueller, J. Jin, A. Drees, Tatsuya Chujo, J. Kubart, Y. Nakamiya, H. En'yo, E. M. Takagui, Takao Sakaguchi, I. Shein, R. C. De Granier, Y. Tanaka, T. V. Moukhanova, A. A. Vinogradov, A. Morreale, M. J. Leitch, M. Mitrovski, H. A. Torii, I. Tserruya, C. Klein-Boesing, Toru Sugitate, Yu. Efremenko, A. A. Bickley, R. Vértesi, Z. Fraenkel, R. Averbeck, W. A. Zajc, D. E. Fields, C. P. Singh, S. Bathe, L. D. Isenhower, Agneta Oskarsson, C. A. Ogilvie, V. Singh, M. Wysocki, J. Jia, J. Kang, T. K. Hemmick, B. V. Jacak, S. Takagi, B. M. Johnson, A. P.T. Palounek, S. F. Pate, Yasuo Miake, Y. Berdnikov, A. D. Frawley, T. Tabaru, Byung-Sik Hong, Y. Goto, M. McCumber, A. Isupov, Y. Akiba, J. Sziklai, M. Mishra, S. Nagamiya, O. Drapier, Alberto Baldisseri, A. Deshpande, G. Baksay, H. Al-Bataineh, C. R. Cleven, S. Zhou, L. Kochenda, S. H. Aronson, A. Bazilevsky, K. S. Joo, K. Das, Vaclav Vrba, Klaus Johannes Reygers, Brian Cole, A. Glenn, R. S. Towell, S. Esumi, C. Haegemann, Y. Inoue, K. N. Barish, A. Rakotozafindrabe, Xingguo Li, I. Garishvili, Akio Kiyomichi, J. Egdemir, Y. J. Mao, E. P. Hartouni, S. Kametani, François Fleuret, P. Rosnet, I. Ravinovich, W. Holzmann, V. Papavassiliou, G. R. Young, Jason Kamin, S. P. Stoll, K. O. Eyser, A. K. Purwar, K. Fujiwara, N. Kurihara, Maya Hachiya Shimomura, J. E. Frantz, L. Baksay, Y. I. Makdisi, S. S.E. Rosendahl, G. Bunce, Roy A. Lacey, S. P. Sorensen, K. Dehmelt, V. Baublis, Y. Watanabe, A. Denisov, V. Cianciolo, Dong-Hun Kim, H. Pei, V-N. Tram, A. Churyn, Rushan Han, Y. Nagata, Dylan Walker, D. Jouan, J. S. Haggerty, D. Winter, M. P. Comets, D. Yu Peressounko, C. Y. Chi, Jen-Chieh Peng, A. Romana, I. Younus, Sergey Fokin, T. A. Shibata, M. K. Lee, H. W. Van Hecke, D. Sharma, S. Butsyk, Vladimir Samsonov, A. Soldatov, Steven E. Skutnik, P. Tarján, Alexandre Lebedev, E. J. Desmond, J. G. Lajoie, T. Hachiya, Motoi Inaba, T. Horaguchi, K. S. Sim, M. L. Brooks, M. J. Tannenbaum, B. Azmoun, A. Král, M. J. Kweon, M. Togawa, D. Isenhower, J. Park, V. Dzhordzhadze, I. J. Choi, A. Kravitz, M. Naglis, O. Dietzsch, C. L. Silva, S. Gadrat, A. Toia, H. Valle, Mate Csanad, F. Matathias, D. Mukhopadhyay, S. Rembeczki, Xiong Wang, B. Love, D. M. Lee, Y. Tsuchimoto, L. Maek, H. Qu, H. A. Gustafsson, Charles Maguire, M. Oka, Masayasu Ishihara, Kensuke Homma, K. Nakano, Tamas Ferenc Csorgo, I. E. Yushmanov, H. Pereira, H. Hiejima, A. Dion, Susumu Sato, A. G. Litvinenko, C. Zhang, J. L. Charvet, Dong Jo Kim, Osamu Jinnouchi, F. Staley, Julia Velkovska, Atsushi Taketani, Hideki Hamagaki, K. Aoki, G. David, Senta Greene, R. Bennett, J. L. Nagle, E. Kistenev, P. Constantin, T. E. Miller, A. Enokizono, W. E. Sondheim, Y. L. Yamaguchi, E. T. Atomssa, S. Chernichenko, A. Kozlov, Viktor Riabov, David D'Enterria, K. Imai, B. Komkov, B. E. Norman, R. Seto, E. O'Brien, M. Finger, K. Haruna, P. Chung, H. Harada, N. Grau, B. Bassalleck, K. Shoji, P. A. Rukoyatkin, P. W. Stankus, W. S. Emam, Norio Saito, Jan Rak, M. N. Wagner, M. A. L. Leite, A. Adare, M. Konno, T. Ichihara, Herve Borel, D. Lynch, Matthew G. Reuter, Takahiro Fusayasu, V. L. Rykov, T. Dahms, Y. S. Lai, Alexander Malakhov, D. Silvermyr, V. Babintsev, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, E. H. Kim, J. G. Boissevain, Masashi Kaneta, M. Gonin, C. Pinkenburg, M. Ouchida, J. Asai, Shingo Sakai, T. L. Thomas, M. Stepanov, Ryugo S. Hayano, J. Gosset, Y. Riabov, Kenta Shigaki, M. Nguyen, A. S. Nyanin, S. Yokkaichi, C. L. Woody, A. Shevel, Tadaaki Isobe, P. L. McGaughey, J. C. Hill, M. Chiu, L. Tomáek, I. V. Sourikova, A. V. Kazantsev, M. G. Perdekamp, Yoichiro Fukao, T. C. Awes, Kyoichiro Ozawa, Jun Kikuchi, Minghui Liu, Kenneth Francis Read, A. Hadj Henni, K. Boyle, Wei Xie, M. Issah, M. D. Malik, E. Vznuzdaev, L. Aphecetche, Johannes Peter Wessels, S. Afanasiev, and A. Ster
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, General Physics and Astronomy, 01 natural sciences, Nuclear physics, 0103 physical sciences, Transverse momentum, Production model, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: J/psi production in p+p collisions at root s=200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over a rapidity range of -2.2 < y < 2.2 and a transverse momentum range of 0 < p(T)< 9 GeV/c. The size of the present data set allows a detailed measurement of both the p(T) and the rapidity distributions and is sufficient to constrain production models. The total cross section times the branching ratio is B-ll sigma(J/psi)(pp)=178 +/- 3(stat)+/- 53(sys)+/- 18(norm) nb.
Published: 2007
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43. System Size and Energy Dependence of Jet-Induced Hadron Pair Correlation Shapes inCu+CuandAu+AuCollisions atsNN=200and 62.4 GeV

Author: A. Shevel, H. Pei, Robert F. Hobbs, S. Belikov, K. S. Joo, I. V. Sourikova, H. Torii, Debashish Pal, P. Tarján, Sean A. Kelly, M. A. Volkov, S. Takagi, H. J. Kim, S. Sawada, J. Ying, A. Franz, M. Ouchida, L. Tomášek, J. Asai, K. O. Eyser, V. S. Pantuev, Viktor Veszpremi, I. Ravinovich, A. G. Hansen, Shingo Sakai, B. Espagnon, S. Y. Fung, M. Harvey, K. Fujiwara, K. N. Barish, R. S. Towell, I. Tserruya, T. L. Thomas, C. A. Ogilvie, Y. Nagata, Ryugo S. Hayano, Y. Riabov, T. K. Hemmick, D. Sharma, Kenta Shigaki, M. Nguyen, A. S. Nyanin, Yu. Efremenko, Maya Hachiya Shimomura, V. Singh, Yasuo Miake, I. Garishvili, Akio Kiyomichi, Junji Tojo, S. F. Pate, Tae-Yeon Lee, Martin Purschke, F. Gastineau, N. N. Ajitanand, Hiroaki Ohnishi, B. D. Fox, Mate Csanad, J. L. Charvet, S. S. Ryu, Y. I. Makdisi, Anne Marie Sickles, G. B. Kim, T. J. Uam, Senta Greene, K. Okada, H. Al-Bataineh, X. R. Wang, J. G. Boissevain, S. Esumi, M. B. Deaton, N. Kurihara, E. J. Desmond, L. Kochenda, Jean-Pierre Cussonneau, Masashi Kaneta, John Hill, K. Oyama, Steven E. Skutnik, D. Kotchetkov, M. L. Brooks, F. Matathias, M. Togawa, B. Sahlmueller, H. En'yo, J. M. Qualls, P. Constantin, M. J. Leitch, B. E. Norman, Takahiro Nakamura, E. H. Kim, K. Katou, Toru Sugitate, A. Morreale, M. J. Tannenbaum, B. Love, Kensuke Homma, T. Kawagishi, Marie Germain, E. O'Brien, Z. Fraenkel, M. Naglis, V. V. Ikonnikov, G. R. Young, V. Papavassiliou, C. L. Silva, T. E. Miller, D. Mukhopadhyay, Sébastien Gadrat, S. Rembeczki, David D'Enterria, R. K. Choudhury, A. G. Litvinenko, C. Silvestre, Hirohiko Sato, D. Bucher, J. Park, Florian Bauer, R. A. Soltz, Susumu Oda, O. Dietzsch, H. Valle, M. G. Hur, C. Y. Chi, Y. Tanaka, T. K. Shea, E. T. Atomssa, C. Pinkenburg, D. Y.-U. Peressounko, R. Pak, S. K. Tuli, T. Shohjoh, R. Santo, A. Durum, S. C. Johnson, S. Chernichenko, Masayasu Ishihara, B. Azmoun, A. Král, Dipanwita Dutta, M. J. Kweon, H. Lim, B. Bassalleck, Ferenc Deák, M. Grosse Perdekamp, N. Kamihara, Jan Rak, J. M. Burward-Hoy, M. Stepanov, G. Roche, R. Armendariz, A. Kozlov, R. Seto, K. Haruna, C. H. Kuberg, J. Chiba, G. C. Mishra, W. A. Zajc, Takao Sakaguchi, V. Baublis, A. Denisov, V. Cianciolo, Xiao-yan Li, R. Bennett, Xingguo Li, Ahmed Al-Jamel, M. Finger, Susumu Sato, C. Klein-Boesing, H. Qu, J. E. Frantz, M. Gonin, P. Chung, R. P. Pisani, Y. Tsuchimoto, L. Baksay, K. Das, M. Mitrovski, R. Granier de Cassagnac, A. Adare, V.N. Penev, M. Muniruzzaman, A. D. Frawley, F. Staley, T. Tabaru, Sergey Fokin, Y. L. Yamaguchi, B. Komkov, Herve Borel, D. Lynch, Y. Le Bornec, A. Deshpande, D. S. Brown, Julia Velkovska, M. Rosati, M. Konno, M. Oka, A. Pierson, Kazuyoshi Kurita, A. Drees, V. Dzhordzhadze, X. He, O. O. Omiwade, M. Velkovsky, E. P. Hartouni, J. Kubart, J. Gosset, J. P. Sullivan, W. C. Smith, L. Sanfratello, I. E. Yushmanov, Nikolay Tyurin, Alexander Milov, S. H. Aronson, I. Nakagawa, M. Wysocki, Norio Saito, M. A. L. Leite, H. Pereira, M. Inuzuka, Hideki Hamagaki, K. Aoki, A. Glenn, M. Holmes, W. S. Emam, G. David, C. P. Singh, T. Horaguchi, A. Hoover, M. K. Lee, K. Ozawa, J. T. Mitchell, B. M. Johnson, A. Dion, V. Peresedov, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Andry Malala Rakotozafindrabe, David Olle Rickard Silvermyr, Charles Maguire, S. Leckey, R. Kohara, W. Holzmann, O. Drapier, Frank Ellinghaus, M. N. Wagner, Atsushi Taketani, R. Seidl, A. Enokizono, D. E. Fields, Vladislav Manko, A. Kiss, V. Babintsev, J. Egdemir, A. A. Vinogradov, Henrik Tydesjö, D. Winter, Josh Moss, R. Vértesi, Jason Kamin, K. S. Sim, S. S. Adler, E. R. Kinney, D. P. Morrison, B. V. Jacak, V. L. Rykov, T. Dahms, J. L. Drachenberg, S. Campbell, G. S. Kyle, M. Chiu, Ajit Kumar Mohanty, N. Willis, A. Isupov, C. Suire, M. Slunečka, Z. Yasin, Henner Buesching, James Alexander, Y. Watanabe, R. Averbeck, S. P. Sorensen, Jiangyong Jia, Y. Goto, S. P. Stoll, S. Batsouli, T. A. Shibata, Y. Kwon, Byung-Sik Hong, A. Bazilevsky, I. Younus, H. Masui, A. K. Dubey, C. L. Woody, W. C. Chang, T. Hester, J. Sziklai, V. E. Semenov, H. Hiejima, J. Zimányi, Dylan Walker, Philippe Rosnet, Alexandre Lebedev, M. McCumber, A. K. Purwar, E. Kistenev, Tatsuya Chujo, C. R. Cleven, C. Haegemann, Y. Inoue, D. M. Lee, Xiaopeng Zong, K. Dehmelt, A. A. Bickley, A. Soldatov, D. Kawall, S. S.E. Rosendahl, G. Bunce, K. Tanida, Roy A. Lacey, Brian Cole, S. Yokkaichi, Rushan Han, M. N. Hagiwara, Jen-Chieh Peng, J. G. Lajoie, J. M. Heuser, T. Hachiya, K. Imai, V. I. Kochetkov, O. Zaudtke, X. Camard, P. Chand, Marcus Hohlmann, S. Butsyk, A. Churyn, P. J. Kroon, Dong-Hun Kim, I. J. Choi, A. Kravitz, M. Virius, J. Murata, Vladimir Samsonov, C. Vale, D. Jouan, Y. J. Mao, I. Otterlund, S. Kametani, Gerd Joachim Kunde, B. S. Chang, L. Aphecetche, H. Harada, Takeo Kawabata, I. Shein, H. W. Vanhecke, Christine Angela Aidala, Ch. Finck, Jason Newby, J. Klay, Pàl Hidas, Saskia Mioduszewski, V-N. Tram, D. Isenhower, J. H. Kang, A. Toia, Dong Jo Kim, L. Mašek, Osamu Jinnouchi, H. Kobayashi, J. S. Haggerty, Y. Nakamiya, M. C. McCain, N. Grau, Alberto Baldisseri, A. Romana, K. Shoji, S. Bathe, Agneta Oskarsson, Tamas Ferenc Csorgo, P. W. Stankus, Motoi Inaba, German Martinez, Johannes Peter Wessels, Y. Berdnikov, J. L. Nagle, Y. Akiba, G. Baksay, A. P.T. Palounek, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, Vaclav Vrba, Klaus Johannes Reygers, Y. Cobigo, Alexei Khanzadeev, Yves Roland Schutz, M. T. Bjorndal, Y. S. Lai, M. Issah, H. Kanou, A. Devismes, Taku Gunji, H. Gong, J. Seele, M. D. Malik, N. Bruner, E. Stenlund, E. Vznuzdaev, F. Kajihara, J. Jin, E. M. Takagui, H. Sakata, H. A. Gustafsson, H. Delagrange, A. Hadj Henni, C. Zhang, K. Boyle, Wei Xie, S. Zhou, Y. S. Kim, Viktor Riabov, T. V. Moukhanova, S. Afanasiev, A. Ster, D. Hornback, M. Heffner, A. Taranenko, Kazushi Miki, B. Khachaturov, T. Matsumoto, K. Hasuko, Hiroyuki Okada, Joakim Nystrand, Eva Haslum, B. Lenzi, Minghui Liu, Kenneth Francis Read, A. V. Kazantsev, P. Mikeš, Yoichiro Fukao, T. C. Awes, T. Liška, Jun Kikuchi, Tadaaki Isobe, J. S. Chai, P. L. McGaughey, L. D. Isenhower, François Fleuret, B. Forestier, T. Ichihara, F. K. Wohn, Matthew G. Reuter, Takahiro Fusayasu, I. D. Ojha, Alexander Malakhov, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, S. N. White, K. Nakano, W. E. Sondheim, and P. A. Rukoyatkin
Subjects: Shock wave, Physics, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, Jet (particle physics), Radiation, 01 natural sciences, Gluon, Azimuth, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Cherenkov radiation, Beam (structure)
Abstract: We present azimuthal angle correlations of intermediate transverse momentum (1-4 GeV/c) hadrons from dijets in Cu+Cu and Au+Au collisions at root s(NN)=62.4 and 200 GeV. The away-side dijet induced azimuthal correlation is broadened, non-Gaussian, and peaked away from Delta phi=pi in central and semicentral collisions in all the systems. The broadening and peak location are found to depend upon the number of participants in the collision, but not on the collision energy or beam nuclei. These results are consistent with sound or shock wave models, but pose challenges to Cherenkov gluon radiation models.
Published: 2007
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44. Energy Loss and Flow of Heavy Quarks inAu+AuCollisions atsNN=200 GeV

Author: J. G. Boissevain, Masashi Kaneta, M. Mitrovski, S. Esumi, B. Azmoun, A. Král, M. J. Kweon, Christophe Pierre Suire, Alexander Milov, I. Nakagawa, M. Oka, A. Dion, Atsushi Taketani, A. Enokizono, M. Rosati, R. A. Soltz, J. L. Drachenberg, S. P. Sorensen, Dylan Walker, R. Vértesi, Jason Newby, O. Drapier, Frank Ellinghaus, E. R. Kinney, M. Grosse Perdekamp, J. E. Frantz, B. Love, D. P. Morrison, S. Campbell, Bruno Espagnon, A. A. Vinogradov, Henrik Tydesjö, J. G. Lajoie, Herve Borel, D. Lynch, V. E. Semenov, J. Zimányi, C. Pinkenburg, Steven E. Skutnik, Tae-Yeon Lee, Martin Purschke, Marie Germain, F. Gastineau, D. Kotchetkov, A. Morreale, Z. Fraenkel, S. Belikov, K. S. Joo, Tatsuya Chujo, Y. Goto, D. Sharma, T. Hachiya, A. Glenn, Mate Csanad, K. Hasuko, L. Tomášek, V. S. Pantuev, A. Deshpande, A. G. Litvinenko, I. J. Choi, A. Kravitz, V. L. Rykov, T. Dahms, H. Qu, M. Stepanov, G. Roche, Hiroyuki Okada, A. Kozlov, Hideki Hamagaki, K. Aoki, G. David, R. Seto, M. Wysocki, E. H. Kim, Joakim Nystrand, W. A. Zajc, I. Ravinovich, V. Baublis, S. Kelly, K. Haruna, N. N. Ajitanand, M. Issah, M. Harvey, D. Winter, M. P. Comets, D. Yu Peressounko, Eva Haslum, B. Lenzi, Y. Nagata, S. Bathe, Agneta Oskarsson, H. Pei, V. Dzhordzhadze, S. Takagi, A. V. Kazantsev, Takahiro Nakamura, S. S. Ryu, Y. Berdnikov, Y. Akiba, J. Gosset, K. N. Barish, S. F. Pate, A. Denisov, V. Cianciolo, David D'Enterria, M. D. Malik, E. Vznuzdaev, Junji Tojo, P. Tarján, M. Chiu, T. A. Shibata, Susumu Oda, M. Mishra, S. Nagamiya, Kazuhiro Tanaka, Xiao-yan Li, J. P. Sullivan, R. P. Pisani, T. Shohjoh, Sergey Fokin, Vaclav Vrba, Klaus Johannes Reygers, A. Durum, H. Al-Bataineh, X. R. Wang, Nikolay Tyurin, M. N. Wagner, J. T. Mitchell, P. Mikeš, K. Nakano, T. Horaguchi, I. Younus, D. Isenhower, A. Toia, L. Mašek, W. E. Sondheim, Charles Maguire, S. Leckey, D. S. Brown, R. Bennett, Ahmed Al-Jamel, M. Finger, Jan Rak, K. Okada, Yoichiro Fukao, A. Soldatov, R. Seidl, Vladislav Manko, M. Slunečka, R. Pak, N. Kamihara, S. Yokkaichi, M. L. Brooks, Josh Moss, J. Chiba, B. Sahlmueller, V. Papavassiliou, Sébastien Gadrat, R. Granier de Cassagnac, T. Hester, T. C. Awes, A. Adare, J. M. Heuser, P. A. Rukoyatkin, H. En'yo, R. Armendariz, D. E. Fields, E. Kistenev, P. Constantin, M. J. Leitch, T. Liška, Jun Kikuchi, C. P. Singh, C. R. Cleven, Kazuyoshi Kurita, Y. L. Yamaguchi, B. Komkov, Senta Greene, B. V. Jacak, G. C. Mishra, C. Haegemann, Y. Inoue, A. Drees, I. Tserruya, M. McCumber, A. K. Purwar, Norio Saito, B. E. Norman, E. O'Brien, Takao Sakaguchi, C. Klein-Boesing, M. A. L. Leite, B. M. Johnson, Yu. Efremenko, A. Hadj Henni, P. J. Kroon, Dong-Hun Kim, M. Gonin, A. D. Frawley, K. Boyle, V-N. Tram, T. Tabaru, C. Vale, B. S. Chang, V. Singh, Christine Angela Aidala, J. Klay, H. Harada, J. L. Charvet, V. Babintsev, G. S. Kyle, M. B. Deaton, A. Isupov, J. Kubart, J. M. Burward-Hoy, Wei Xie, J. Sziklai, H. Pereira, W. C. Smith, T. E. Miller, James Alexander, O. Zaudtke, Y. Tanaka, E. T. Atomssa, T. K. Shea, J. Jia, S. H. Aronson, R. Averbeck, Byung-Sik Hong, M. K. Lee, K. Ozawa, Motoi Inaba, Brian Cole, A. Bazilevsky, Hirohiko Sato, S. K. Tuli, Youngil Kwon, W. Holzmann, P. Chung, Philippe Rosnet, Y. J. Mao, S. Kametani, Maya Hachiya Shimomura, M. Virius, M. Holmes, K. Dehmelt, Alexandre Lebedev, L. Baksay, Jen-Chieh Peng, Y. I. Makdisi, D. M. Lee, J. S. Haggerty, A. Romana, S. Y. Fung, W. S. Emam, M. Ouchida, J. Asai, S. Afanasiev, A. Ster, H. Kanou, K. Das, Taku Gunji, H. Gong, J. Seele, Y. Cobigo, E. P. Hartouni, Shingo Sakai, Hiroaki Ohnishi, F. Kajihara, M. Naglis, Anne Marie Sickles, Y. S. Lai, C. L. Silva, Dong Jo Kim, H. Delagrange, K. O. Eyser, K. Fujiwara, D. Hornback, H. A. Torii, Osamu Jinnouchi, M. Heffner, R. S. Towell, Toru Sugitate, Masayasu Ishihara, L. D. Isenhower, I. Garishvili, Akio Kiyomichi, M. J. Tannenbaum, Susumu Sato, N. Grau, S. Zhou, A. Taranenko, F. Staley, N. Kurihara, K. Shoji, Kazushi Miki, Minghui Liu, Y. S. Kim, François Fleuret, M. G. Hur, C. Y. Chi, B. Forestier, Kenneth Francis Read, G. R. Young, P. W. Stankus, T. Ichihara, N. Willis, D. Mukhopadhyay, H. A. Gustafsson, L. Aphecetche, S. Rembeczki, J. Egdemir, F. Matathias, H. W. Van Hecke, D. Bucher, Matthew G. Reuter, Saskia Mioduszewski, D. Kawall, Kensuke Homma, Takahiro Fusayasu, K. Tanida, C. Zhang, V. I. Kochetkov, C. Silvestre, I. D. Ojha, Alexander Malakhov, Jason Kamin, J. Murata, J. Jin, E. M. Takagui, S. Chernichenko, S. P. Stoll, Marisilvia Donadelli, V. Bumazhnov, Johannes Peter Wessels, Gerd Joachim Kunde, D. Silvermyr, H. Lim, I. Shein, Andry Malala Rakotozafindrabe, A. Kiss, Viktor Riabov, B. Bassalleck, L. S. Zolin, W. J. Park, S. S.E. Rosendahl, Alberto Baldisseri, Z. Yasin, Henner Buesching, G. Bunce, M. Konno, C. L. Woody, S. Batsouli, P. D. Barnes, A. Yanovich, Xingguo Li, H. Kano, Tadaaki Isobe, J. S. Chai, A. Churyn, O. Dietzsch, H. Valle, Y. Nakamiya, Marcus Hohlmann, D. Jouan, A. Shevel, Roy A. Lacey, K. S. Sim, Julia Velkovska, Rushan Han, M. N. Hagiwara, P. L. McGaughey, Y. Watanabe, S. N. White, M. C. McCain, S. Butsyk, Vladimir Samsonov, C. A. Ogilvie, J. C. Hill, I. Otterlund, X. He, J. Kang, T. K. Hemmick, Yasuo Miake, G. Baksay, L. Kochenda, O. O. Omiwade, H. Hiejima, A. P.T. Palounek, Tamas Ferenc Csorgo, I. V. Sourikova, J. L. Nagle, M. T. Bjorndal, K. Imai, V. Peresedov, Y. Le Bornec, T. L. Thomas, Ryugo S. Hayano, Robert F. Hobbs, Debashish Pal, Y. Riabov, S. Sawada, J. Ying, A. Franz, Kenta Shigaki, M. Nguyen, A. S. Nyanin, E. J. Desmond, H. Masui, A. K. Dubey, M. Togawa, J. Park, Florian Bauer, Y. Tsuchimoto, I. E. Yushmanov, Alexei Khanzadeev, A. A. Bickley, E. Stenlund, H. Sakata, T. V. Moukhanova, and T. Kawagishi
Subjects: Quark, Physics, 010308 nuclear & particles physics, Elliptic flow, General Physics and Astronomy, Electron, 01 natural sciences, 7. Clean energy, Nuclear physics, Particle decay, Pion, 0103 physical sciences, High Energy Physics::Experiment, Charm (quantum number), Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Anisotropy
Abstract: The PHENIX experiment at the BNL Relativistic Heavy Ion Collider (RHIC) has measured electrons with 0.3 < p(T) < 9 GeV/c at midrapidity (y < 0.35) from heavy-flavor (charm and bottom) decays in Au + Au collisions at root s(NN) = 200 GeV. The nuclear modification factor R-AA relative to p + p collisions shows a strong suppression in central Au + Au collisions, indicating substantial energy loss of heavy quarks in the medium produced at RHIC energies. A large azimuthal anisotropy v(2) with respect to the reaction plane is observed for 0.5 < p(T) < 5 GeV/c indicating substantial heavy-flavor elliptic flow. Both R-AA and v(2) show a p(T) dependence different from those of neutral pions. A comparison to transport models which simultaneously describe R-AA(p(T)) and v(2)(p(T)) suggests that the viscosity to entropy density ratio is close to the conjectured quantum lower bound, i.e., near a perfect fluid.
Published: 2007
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45. System size and energy dependence of jet-induced hadron pair correlation shapes in Cu+Cu and Au+Au collisions at square root sNN=200 and 62.4 GeV

Author: A, Adare, S S, Adler, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, A, Al-Jamel, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, J, Asai, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, G, Baksay, L, Baksay, 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, A A, Bickley, M T, Bjorndal, J G, Boissevain, H, Borel, 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, B S, Chang, W C, Chang, J-L, Charvet, S, Chernichenko, J, Chiba, C Y, Chi, M, Chiu, I J, Choi, R K, Choudhury, T, Chujo, P, Chung, A, Churyn, V, Cianciolo, C R, Cleven, Y, Cobigo, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, J P, Cussonneau, T, Dahms, K, Das, G, David, F, Deák, M B, Deaton, K, Dehmelt, H, Delagrange, A, Denisov, D, d'Enterria, A, Deshpande, E J, Desmond, A, Devismes, O, Dietzsch, A, Dion, M, Donadelli, J L, Drachenberg, O, Drapier, A, Drees, A K, Dubey, A, Durum, D, Dutta, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, F, Ellinghaus, W S, Emam, A, Enokizono, H, En'yo, B, Espagnon, S, Esumi, K O, Eyser, D E, Fields, C, Finck, M, Finger, F, Fleuret, S L, Fokin, B, Forestier, B D, Fox, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, S-Y, Fung, T, Fusayasu, S, Gadrat, I, Garishvili, F, Gastineau, M, Germain, A, Glenn, H, Gong, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-A, Gustafsson, T, Hachiya, A, Hadj Henni, C, Haegemann, J S, Haggerty, M N, Hagiwara, H, Hamagaki, R, Han, A G, Hansen, H, Harada, E P, Hartouni, K, Haruna, M, Harvey, E, Haslum, K, Hasuko, R, Hayano, M, Heffner, T K, Hemmick, T, Hester, J M, Heuser, X, He, P, Hidas, H, Hiejima, J C, Hill, R, Hobbs, M, Hohlmann, M, Holmes, W, Holzmann, K, Homma, B, Hong, A, Hoover, T, Horaguchi, D, Hornback, M G, Hur, T, Ichihara, V V, Ikonnikov, K, Imai, M, Inaba, Y, Inoue, M, Inuzuka, D, Isenhower, L, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, B V, Jacak, J, Jia, J, Jin, O, Jinnouchi, B M, Johnson, S C, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, M, Kaneta, J H, Kang, H, Kanou, K, Katou, T, Kawabata, T, Kawagishi, D, Kawall, A V, Kazantsev, S, Kelly, B, Khachaturov, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, E, Kim, G-B, Kim, H J, Kim, Y-S, Kim, E, Kinney, A, Kiss, E, Kistenev, A, Kiyomichi, J, Klay, C, Klein-Boesing, H, Kobayashi, L, Kochenda, V, Kochetkov, R, Kohara, B, Komkov, M, Konno, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, P J, Kroon, J, Kubart, C H, Kuberg, G J, Kunde, N, Kurihara, K, Kurita, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, Y-S, Lai, J G, Lajoie, A, Lebedev, Y, Le Bornec, S, Leckey, D M, Lee, M K, Lee, T, Lee, M J, Leitch, M A L, Leite, B, Lenzi, H, Lim, T, Liska, A, Litvinenko, M X, Liu, X, Li, X H, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, Y, Mao, G, Martinez, L, Masek, H, Masui, F, Matathias, T, Matsumoto, M C, McCain, M, McCumber, P L, McGaughey, Y, Miake, P, Mikes, K, Miki, T E, Miller, A, Milov, S, Mioduszewski, G C, Mishra, M, Mishra, J T, Mitchell, M, Mitrovski, A K, Mohanty, A, Morreale, D P, Morrison, J M, Moss, T V, Moukhanova, D, Mukhopadhyay, M, Muniruzzaman, J, Murata, S, Nagamiya, Y, Nagata, J L, Nagle, M, Naglis, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, B E, Norman, A S, Nyanin, J, Nystrand, E, O'Brien, S X, Oda, C A, Ogilvie, H, Ohnishi, I D, Ojha, H, Okada, K, Okada, M, Oka, O O, Omiwade, A, Oskarsson, I, Otterlund, M, Ouchida, K, Oyama, K, Ozawa, R, Pak, 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, D Yu, Peressounko, A, Pierson, C, Pinkenburg, R P, Pisani, M L, Purschke, A K, Purwar, J M, Qualls, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, S, Rembeczki, 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, B, Sahlmueller, N, Saito, T, Sakaguchi, S, Sakai, H, Sakata, V, Samsonov, L, Sanfratello, R, Santo, H D, Sato, S, Sato, S, Sawada, Y, Schutz, J, Seele, R, Seidl, V, Semenov, R, Seto, D, Sharma, T K, Shea, I, Shein, A, Shevel, T-A, Shibata, K, Shigaki, M, Shimomura, T, Shohjoh, K, Shoji, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, C P, Singh, V, Singh, S, Skutnik, M, Slunecka, 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, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, T L, Thomas, M, Togawa, A, Toia, J, Tojo, L, Tomásek, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, S K, Tuli, H, Tydesjö, N, Tyurin, T J, Uam, C, Vale, H, Valle, H W, vanHecke, J, Velkovska, M, Velkovsky, R, Vertesi, V, Veszprémi, A A, Vinogradov, M, Virius, M A, Volkov, V, Vrba, E, Vznuzdaev, M, Wagner, D, Walker, 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 L, Yamaguchi, A, Yanovich, Z, Yasin, J, Ying, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, J, Zimányi, L, Zolin, and X, Zong
Abstract: We present azimuthal angle correlations of intermediate transverse momentum (1-4 GeV/c) hadrons from dijets in Cu+Cu and Au+Au collisions at square root sNN=62.4 and 200 GeV. The away-side dijet induced azimuthal correlation is broadened, non-Gaussian, and peaked away from Delta phi=pi in central and semicentral collisions in all the systems. The broadening and peak location are found to depend upon the number of participants in the collision, but not on the collision energy or beam nuclei. These results are consistent with sound or shock wave models, but pose challenges to Cherenkov gluon radiation models.
Published: 2006

46. J/psi production versus transverse momentum and rapidity in p+p collisions at square root s=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, J, Asai, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, G, Baksay, L, Baksay, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, R, Bennett, Y, Berdnikov, A A, Bickley, J G, Boissevain, H, Borel, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, B S, Chang, J-L, Charvet, S, Chernichenko, J, Chiba, C Y, Chi, M, Chiu, I J, Choi, T, Chujo, P, Chung, A, Churyn, V, Cianciolo, C R, Cleven, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, K, Das, G, David, M B, Deaton, K, Dehmelt, H, Delagrange, A, Denisov, D, d'Enterria, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, A K, Dubey, A, Durum, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, F, Ellinghaus, W S, Emam, A, Enokizono, H, En'yo, S, Esumi, K O, Eyser, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, S, Gadrat, I, Garishvili, A, Glenn, H, Gong, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-A, Gustafsson, T, Hachiya, A, Hadj Henni, C, Haegemann, J S, Haggerty, H, Hamagaki, R, Han, H, Harada, E P, Hartouni, K, Haruna, E, Haslum, R, Hayano, M, Heffner, T K, Hemmick, T, Hester, X, He, H, Hiejima, J C, Hill, R, Hobbs, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, T, Ichihara, K, Imai, M, Inaba, Y, Inoue, D, Isenhower, L, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, B V, Jacak, J, Jia, J, Jin, O, Jinnouchi, B M, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, M, Kaneta, J H, Kang, H, Kanou, D, Kawall, A V, Kazantsev, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, E, Kim, E, Kinney, A, Kiss, E, Kistenev, A, Kiyomichi, J, Klay, C, Klein-Boesing, L, Kochenda, V, Kochetkov, B, Komkov, M, Konno, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, J, Kubart, G J, Kunde, N, Kurihara, K, Kurita, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, Y-S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, M K, Lee, T, Lee, M J, Leitch, M A L, Leite, B, Lenzi, T, Liska, A, Litvinenko, M X, Liu, X, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, Y, Mao, L, Masek, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, Y, Miake, P, Mikes, K, Miki, T E, Miller, A, Milov, S, Mioduszewski, M, Mishra, J T, Mitchell, M, Mitrovski, A, Morreale, D P, Morrison, T V, Moukhanova, D, Mukhopadhyay, J, Murata, S, Nagamiya, Y, Nagata, J L, Nagle, M, Naglis, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, B E, Norman, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, H, Ohnishi, H, Okada, K, Okada, M, Oka, O O, Omiwade, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, S, Rembeczki, 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, B, Sahlmueller, N, Saito, T, Sakaguchi, S, Sakai, H, Sakata, V, Samsonov, S, Sato, S, Sawada, J, Seele, R, Seidl, V, Semenov, R, Seto, D, Sharma, I, Shein, A, Shevel, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, C P, Singh, V, Singh, S, Skutnik, M, Slunecka, 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, Sziklai, T, Tabaru, S, Takagi, E M, Takagui, A, Taketani, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, T L, Thomas, M, Togawa, A, Toia, J, Tojo, L, Tomásek, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, J, Velkovska, R, Vertesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, M, Wagner, D, Walker, X R, Wang, Y, Watanabe, J, Wessels, S N, White, D, Winter, C L, Woody, M, Wysocki, W, Xie, Y, Yamaguchi, A, Yanovich, Z, Yasin, J, Ying, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, J, Zimányi, and L, Zolin
Abstract: J/psi production in p+p collisions at square root s=200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over a rapidity range of -2.2y2.2 and a transverse momentum range of 0pT9 GeV/c. The size of the present data set allows a detailed measurement of both the pT and the rapidity distributions and is sufficient to constrain production models. The total cross section times the branching ratio is Bll sigma pp J/psi=178+/-3stat+/-53sys+/-18norm nb.
Published: 2006

47. J/psi production versus centrality, transverse momentum, and rapidity in Au+Au collisions at square root sNN=200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, A, Al-Jamel, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, J, Asai, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, G, Baksay, L, Baksay, 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, A A, Bickley, M T, Bjorndal, J G, Boissevain, H, Borel, K, Boyle, M L, Brooks, D S, Brown, D, Bucher, H, Buesching, V, Bumazhnov, G, Bunce, J M, Burward-Hoy, S, Butsyk, S, Campbell, J-S, Chai, B S, Chang, J-L, Charvet, S, Chernichenko, J, Chiba, C Y, Chi, M, Chiu, I J, Choi, T, Chujo, P, Chung, A, Churyn, V, Cianciolo, C R, Cleven, Y, Cobigo, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, K, Das, G, David, M B, Deaton, K, Dehmelt, H, Delagrange, A, Denisov, D, d'Enterria, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, J L, Drachenberg, O, Drapier, A, Drees, A K, Dubey, A, Durum, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, F, Ellinghaus, W S, Emam, A, Enokizono, H, En'yo, B, Espagnon, S, Esumi, K O, Eyser, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, B, Forestier, Z, Fraenkel, J E, Frantz, A, Franz, A D, Frawley, K, Fujiwara, Y, Fukao, S-Y, Fung, T, Fusayasu, S, Gadrat, I, Garishvili, F, Gastineau, M, Germain, A, Glenn, H, Gong, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-A, Gustafsson, T, Hachiya, A, Hadj Henni, C, Haegemann, J S, Haggerty, M N, Hagiwara, H, Hamagaki, R, Han, H, Harada, E P, Hartouni, K, Haruna, M, Harvey, E, Haslum, K, Hasuko, R, Hayano, M, Heffner, T K, Hemmick, T, Hester, J M, Heuser, X, He, H, Hiejima, J C, Hill, R, Hobbs, M, Hohlmann, M, Holmes, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, M G, Hur, T, Ichihara, K, Imai, M, Inaba, Y, Inoue, D, Isenhower, L, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, B V, Jacak, J, Jia, J, Jin, O, Jinnouchi, B M, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, M, Kaneta, J H, Kang, H, Kanou, T, Kawagishi, D, Kawall, A V, Kazantsev, S, Kelly, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, E, Kim, Y-S, Kim, E, Kinney, A, Kiss, E, Kistenev, A, Kiyomichi, J, Klay, C, Klein-Boesing, L, Kochenda, V, Kochetkov, B, Komkov, M, Konno, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, P J, Kroon, J, Kubart, G J, Kunde, N, Kurihara, K, Kurita, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, Y-S, Lai, J G, Lajoie, A, Lebedev, Y, Le Bornec, S, Leckey, D M, Lee, M K, Lee, T, Lee, M J, Leitch, M A L, Leite, B, Lenzi, H, Lim, T, Liska, A, Litvinenko, M X, Liu, X, Li, X H, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, Y, Mao, L, Masek, H, Masui, F, Matathias, M C, McCain, M, McCumber, P L, McGaughey, Y, Miake, P, Mikes, K, Miki, T E, Miller, A, Milov, S, Mioduszewski, G C, Mishra, M, Mishra, J T, Mitchell, M, Mitrovski, A, Morreale, D P, Morrison, J M, Moss, T V, Moukhanova, D, Mukhopadhyay, J, Murata, S, Nagamiya, Y, Nagata, J L, Nagle, M, Naglis, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, B E, Norman, A S, Nyanin, J, Nystrand, E, O'Brien, S X, Oda, C A, Ogilvie, H, Ohnishi, I D, Ojha, H, Okada, K, Okada, M, Oka, O O, Omiwade, A, Oskarsson, I, Otterlund, M, Ouchida, K, Ozawa, R, Pak, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, R P, Pisani, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, S, Rembeczki, 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, B, Sahlmueller, N, Saito, T, Sakaguchi, S, Sakai, H, Sakata, V, Samsonov, H D, Sato, S, Sato, S, Sawada, J, Seele, R, Seidl, V, Semenov, R, Seto, D, Sharma, T K, Shea, I, Shein, A, Shevel, T-A, Shibata, K, Shigaki, M, Shimomura, T, Shohjoh, K, Shoji, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, C P, Singh, V, Singh, S, Skutnik, M, Slunecka, 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, K H, Tanaka, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, T L, Thomas, M, Togawa, A, Toia, J, Tojo, L, Tomásek, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, S K, Tuli, H, Tydesjö, N, Tyurin, C, Vale, H, Valle, H W, van Hecke, J, Velkovska, R, Vertesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, M, Wagner, D, Walker, X R, Wang, Y, Watanabe, J, Wessels, S N, White, N, Willis, D, Winter, C L, Woody, M, Wysocki, W, Xie, Y, Yamaguchi, A, Yanovich, Z, Yasin, J, Ying, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, J, Zimányi, and L, Zolin
Abstract: The PHENIX experiment at the BNL Relativistic Heavy Ion Collider (RHIC) has measured J/psi production for rapidities -2.2y2.2 in Au+Au collisions at square root sNN=200 GeV. The J/psi invariant yield and nuclear modification factor RAA as a function of centrality, transverse momentum, and rapidity are reported. A suppression of J/psi relative to binary collision scaling of proton-proton reaction yields is observed. Models which describe the lower energy J/psi data at the CERN Super Proton Synchrotron invoking only J/psi destruction based on the local medium density predict a significantly larger suppression at RHIC and more suppression at midrapidity than at forward rapidity. Both trends are contradicted by our data.
Published: 2006

48. Measurement of high-pT single electrons from heavy-flavor decays in p + p collisions at square root of s = 200 GeV

Author: A, Adare, S, Afanasiev, C, Aidala, N N, Ajitanand, Y, Akiba, H, Al-Bataineh, J, Alexander, K, Aoki, L, Aphecetche, R, Armendariz, S H, Aronson, J, Asai, E T, Atomssa, R, Averbeck, T C, Awes, B, Azmoun, V, Babintsev, G, Baksay, L, Baksay, A, Baldisseri, K N, Barish, P D, Barnes, B, Bassalleck, S, Bathe, S, Batsouli, V, Baublis, A, Bazilevsky, S, Belikov, R, Bennett, Y, Berdnikov, A A, Bickley, J G, Boissevain, H, Borel, K, Boyle, M L, Brooks, H, Buesching, V, Bumazhnov, G, Bunce, S, Butsyk, S, Campbell, B S, Chang, J-L, Charvet, S, Chernichenko, J, Chiba, C Y, Chi, M, Chiu, I J, Choi, T, Chujo, P, Chung, A, Churyn, V, Cianciolo, C R, Cleven, B A, Cole, M P, Comets, P, Constantin, M, Csanád, T, Csörgo, T, Dahms, K, Das, G, David, M B, Deaton, K, Dehmelt, H, Delagrange, A, Denisov, D, d'Enterria, A, Deshpande, E J, Desmond, O, Dietzsch, A, Dion, M, Donadelli, O, Drapier, A, Drees, A K, Dubey, A, Durum, V, Dzhordzhadze, Y V, Efremenko, J, Egdemir, F, Ellinghaus, W S, Emam, A, Enokizono, H, En'yo, S, Esumi, K O, Eyser, D E, Fields, M, Finger, F, Fleuret, S L, Fokin, Z, Fraenkel, A, Franz, J, Frantz, A D, Frawley, K, Fujiwara, Y, Fukao, T, Fusayasu, S, Gadrat, I, Garishvili, A, Glenn, H, Gong, M, Gonin, J, Gosset, Y, Goto, R, Granier de Cassagnac, N, Grau, S V, Greene, M, Grosse Perdekamp, T, Gunji, H-A, Gustafsson, T, Hachiya, A Hadj, Henni, C, Haegemann, J S, Haggerty, H, Hamagaki, R, Han, H, Harada, E P, Hartouni, K, Haruna, E, Haslum, R, Hayano, M, Heffner, T K, Hemmick, T, Hester, X, He, H, Hiejima, J C, Hill, R, Hobbs, M, Hohlmann, W, Holzmann, K, Homma, B, Hong, T, Horaguchi, D, Hornback, T, Ichihara, K, Imai, M, Inaba, Y, Inoue, D, Isenhower, L, Isenhower, M, Ishihara, T, Isobe, M, Issah, A, Isupov, B V, Jacak, J, Jia, J, Jin, O, Jinnouchi, B M, Johnson, K S, Joo, D, Jouan, F, Kajihara, S, Kametani, N, Kamihara, J, Kamin, M, Kaneta, J H, Kang, H, Kanou, H, Kano, D, Kawall, A V, Kazantsev, A, Khanzadeev, J, Kikuchi, D H, Kim, D J, Kim, E, Kim, E, Kinney, A, Kiss, E, Kistenev, A, Kiyomichi, J, Klay, C, Klein-Boesing, L, Kochenda, V, Kochetkov, B, Komkov, M, Konno, D, Kotchetkov, A, Kozlov, A, Král, A, Kravitz, J, Kubart, G J, Kunde, N, Kurihara, K, Kurita, M J, Kweon, Y, Kwon, G S, Kyle, R, Lacey, Y-S, Lai, J G, Lajoie, A, Lebedev, D M, Lee, M K, Lee, T, Lee, M J, Leitch, M A L, Leite, B, Lenzi, T, Liska, A, Litvinenko, M X, Liu, X, Li, B, Love, D, Lynch, C F, Maguire, Y I, Makdisi, A, Malakhov, M D, Malik, V I, Manko, Y, Mao, L, Masek, H, Masui, F, Matathias, M, McCumber, P L, McGaughey, Y, Miake, P, Mikes, K, Miki, T E, Miller, A, Milov, S, Mioduszewski, M, Mishra, J T, Mitchell, M, Mitrovski, A, Morreale, D P, Morrison, T V, Moukhanova, D, Mukhopadhyay, J, Murata, S, Nagamiya, Y, Nagata, J L, Nagle, M, Naglis, I, Nakagawa, Y, Nakamiya, T, Nakamura, K, Nakano, J, Newby, M, Nguyen, B E, Norman, A S, Nyanin, E, O'Brien, S X, Oda, C A, Ogilvie, H, Ohnishi, H, Okada, K, Okada, M, Oka, O O, Omiwade, A, Oskarsson, M, Ouchida, K, Ozawa, R, Pak, D, Pal, A P T, Palounek, V, Pantuev, V, Papavassiliou, J, Park, W J, Park, S F, Pate, H, Pei, J-C, Peng, H, Pereira, V, Peresedov, D Yu, Peressounko, C, Pinkenburg, M L, Purschke, A K, Purwar, H, Qu, J, Rak, A, Rakotozafindrabe, I, Ravinovich, K F, Read, S, Rembeczki, 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, B, Sahlmueller, N, Saito, T, Sakaguchi, S, Sakai, H, Sakata, V, Samsonov, S, Sato, S, Sawada, J, Seele, R, Seidl, V, Semenov, R, Seto, D, Sharma, I, Shein, A, Shevel, T-A, Shibata, K, Shigaki, M, Shimomura, K, Shoji, A, Sickles, C L, Silva, D, Silvermyr, C, Silvestre, K S, Sim, C P, Singh, V, Singh, S, Skutnik, M, Slunecka, 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, Sziklai, T, Tabaru, S, Takagi, E M, Takagui, A, Taketani, Y, Tanaka, K, Tanida, M J, Tannenbaum, A, Taranenko, P, Tarján, T L, Thomas, M, Togawa, A, Toia, J, Tojo, L, Tomásek, H, Torii, R S, Towell, V-N, Tram, I, Tserruya, Y, Tsuchimoto, C, Vale, H, Valle, H W, van Hecke, J, Velkovska, R, Vertesi, A A, Vinogradov, M, Virius, V, Vrba, E, Vznuzdaev, M, Wagner, D, Walker, X R, Wang, Y, Watanabe, J, Wessels, S N, White, D, Winter, C L, Woody, M, Wysocki, W, Xie, Y, Yamaguchi, A, Yanovich, Z, Yasin, J, Ying, S, Yokkaichi, G R, Young, I, Younus, I E, Yushmanov, W A, Zajc, O, Zaudtke, C, Zhang, S, Zhou, J, Zimányi, and L, Zolin
Abstract: The momentum distribution of electrons from decays of heavy flavor (charm and bottom) for midrapidity absolute value of y0.35 in p + p collisions at square root of s = 200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over the transverse momentum range 0.3pT9 GeV/c. Two independent methods have been used to determine the heavy-flavor yields, and the results are in good agreement with each other. A fixed-order-plus-next-to-leading-log perturbative QCD calculation agrees with the data within the theoretical and experimental uncertainties, with the data/theory ratio of 1.71+/-0.02stat+/-0.18sys for 0.3pT9 GeV/c. The total charm production cross section at this energy has also been deduced to be sigma cc = 567+/-57stat+/-193sys microb.
Published: 2006

49. Magicity versus Superfluidity around ^{28}O viewed from the Study of ^{30}F.

Author: Kahlbow J, Aumann T, Sorlin O, Kondo Y, Nakamura T, Nowacki F, Revel A, Achouri NL, Al Falou H, Atar L, Baba H, Boretzky K, Caesar C, Calvet D, Chae H, Chiga N, Corsi A, Delaunay F, Delbart A, Deshayes Q, Dombrádi Z, Douma CA, Elekes Z, Gašparić I, Gheller JM, Gibelin J, Gillibert A, Harakeh MN, Hirayama A, Holl M, Horvat A, Horváth Á, Hwang JW, Isobe T, Kalantar-Nayestanaki N, Kawase S, Kim S, Kisamori K, Kobayashi T, Körper D, Koyama S, Kuti I, Lapoux V, Lindberg S, Marqués FM, Masuoka S, Mayer J, Miki K, Murakami T, Najafi M, Nakano K, Nakatsuka N, Nilsson T, Obertelli A, Orr NA, Otsu H, Ozaki T, Panin V, Paschalis S, Rossi DM, Saito AT, Saito T, Sasano M, Sato H, Satou Y, Scheit H, Schindler F, Schrock P, Shikata M, Shimada K, Shimizu Y, Simon H, Sohler D, Stuhl L, Takeuchi S, Tanaka M, Thoennessen M, Törnqvist H, Togano Y, Tomai T, Tscheuschner J, Tsubota J, Uesaka T, Wang H, Yang Z, Yasuda M, and Yoneda K
Abstract: The neutron-rich unbound fluorine isotope ^{30}F_{21} has been observed for the first time by measuring its neutron decay at the SAMURAI spectrometer (RIBF, RIKEN) in the quasifree proton knockout reaction of ^{31}Ne nuclei at 235 MeV/nucleon. The mass and thus one-neutron-separation energy of ^{30}F has been determined to be S_{n}=-472±58(stat)±33(sys) keV from the measurement of its invariant-mass spectrum. The absence of a sharp drop in S_{n}(^{30}F) shows that the "magic" N=20 shell gap is not restored close to ^{28}O, which is in agreement with our shell-model calculations that predict a near degeneracy between the neutron d and fp orbitals, with the 1p_{3/2} and 1p_{1/2} orbitals becoming more bound than the 0f_{7/2} one. This degeneracy and reordering of orbitals has two potential consequences: ^{28}O behaves like a strongly superfluid nucleus with neutron pairs scattering across shells, and both ^{29,31}F appear to be good two-neutron halo-nucleus candidates.
Published: 2024
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50. Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at sqrt[s]=510 GeV in p[over →]+p[over →] Collisions.

Author: Abdulameer NJ, Acharya U, Adare A, Aidala C, Ajitanand NN, Akiba Y, Akimoto R, Alfred M, Apadula N, Aramaki Y, Asano H, Atomssa ET, Awes TC, Azmoun B, Babintsev V, Bai M, Bandara NS, Bannier B, Barish KN, Bathe S, Bazilevsky A, Beaumier M, Beckman S, Belmont R, Berdnikov A, Berdnikov Y, Bichon L, Black D, Blankenship B, Bok JS, Borisov V, Boyle K, Brooks ML, Bryslawskyj J, Buesching H, Bumazhnov V, Campbell S, Canoa Roman V, Chen CH, Chiu M, Chi CY, Choi IJ, Choi JB, Chujo T, Citron Z, Connors M, Corliss R, Corrales Morales Y, Csanád M, Csörgő T, Datta A, Daugherity MS, David G, Dean CT, DeBlasio K, Dehmelt K, Denisov A, Deshpande A, Desmond EJ, Ding L, Dion A, Doomra V, Do JH, Drees A, Drees KA, Durham JM, Durum A, En'yo H, Enokizono A, Esha R, Fadem B, Fan W, Feege N, Fields DE, Finger M, Finger M, Firak D, Fitzgerald D, Fokin SL, Frantz JE, Franz A, Frawley AD, Gallus P, Gal C, Garg P, Ge H, Giles M, Giordano F, Glenn A, Goto Y, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Guragain H, Gu Y, Hachiya T, Haggerty JS, Hahn KI, Hamagaki H, Hanks J, Han SY, Harvey M, Hasegawa S, Hemmick TK, He X, Hill JC, Hodges A, Hollis RS, Homma K, Hong B, Hoshino T, Huang J, Ikeda Y, Imai K, Imazu Y, Inaba M, Iordanova A, Isenhower D, Ivanishchev D, Jacak BV, Jeon SJ, Jezghani M, Jiang X, Ji Z, Johnson BM, Joo E, Joo KS, Jouan D, Jumper DS, Kang JH, Kang JS, Kawall D, Kazantsev AV, Key JA, Khachatryan V, Khanzadeev A, Khatiwada A, Kihara K, Kim C, Kim DH, Kim DJ, Kim EJ, Kim HJ, Kim M, Kim T, Kim YK, Kincses D, Kingan A, Kistenev E, Klatsky J, Kleinjan D, Kline P, Koblesky T, Kofarago M, Koster J, Kotov D, Kovacs L, Kurgyis B, Kurita K, Kurosawa M, Kwon Y, Lajoie JG, Larionova D, Lebedev A, Lee KB, Lee SH, Leitch MJ, Leitgab M, Lewis NA, Lim SH, Liu MX, Li X, Loomis DA, Lynch D, Lökös S, Majoros T, Makdisi YI, Makek M, Manion A, Manko VI, Mannel E, McCumber M, McGaughey PL, McGlinchey D, McKinney C, Meles A, Mendoza M, Meredith B, Miake Y, Mignerey AC, Miller AJ, Milov A, Mishra DK, Mitchell JT, Mitrankova M, Mitrankov I, Miyasaka S, Mizuno S, Mondal MM, Montuenga P, Moon T, Morrison DP, Moukhanova TV, Muhammad A, Mulilo B, Murakami T, Murata J, Mwai A, Nagamiya S, Nagle JL, Nagy MI, Nakagawa I, Nakagomi H, Nakano K, Nattrass C, Nelson S, Netrakanti PK, Nihashi M, Niida T, Nouicer R, Novitzky N, Nukazuka G, Nyanin AS, O'Brien E, Ogilvie CA, Oh J, Orjuela Koop JD, Orosz M, Osborn JD, Oskarsson A, Ozawa K, Pak R, Pantuev V, Papavassiliou V, Park JS, Park S, Patel L, Patel M, Pate SF, Peng JC, Peng W, Perepelitsa DV, Perera GDN, Peressounko DY, PerezLara CE, Perry J, Petti R, Pinkenburg C, Pinson R, Pisani RP, Potekhin M, Pun A, Purschke ML, Radzevich PV, Rak J, Ramasubramanian N, Ravinovich I, Read KF, Reynolds D, Riabov V, Riabov Y, Richford D, Riveli N, Roach D, Rolnick SD, Rosati M, Rowan Z, Rubin JG, Runchey J, Saito N, Sakaguchi T, Sako H, Samsonov V, Sarsour M, Sato S, Sawada S, Schaefer B, Schmoll BK, Sedgwick K, Seele J, Seidl R, Sen A, Seto R, Sett P, Sexton A, Sharma D, Shein I, Shibata M, Shibata TA, Shigaki K, Shimomura M, Shi Z, Shukla P, Sickles A, Silva CL, Silvermyr D, Singh BK, Singh CP, Singh V, Slunečka M, Smith KL, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Stankus PW, Stepanov M, Stoll SP, Sugitate T, Sukhanov A, Sumita T, Sun J, Sun Z, Sziklai J, Takahama R, Takahara A, Taketani A, Tanida K, Tannenbaum MJ, Tarafdar S, Taranenko A, Timilsina A, Todoroki T, Tomášek M, Torii H, Towell M, Towell R, Towell RS, Tserruya I, Ueda Y, Ujvari B, van Hecke HW, Vargyas M, Velkovska J, Virius M, Vrba V, Vznuzdaev E, Wang XR, Wang Z, Watanabe D, Watanabe Y, Watanabe YS, Wei F, Whitaker S, Wolin S, Wong CP, Woody CL, Wysocki M, Xia B, Xue L, Yalcin S, Yamaguchi YL, Yanovich A, Yoon I, Younus I, Yushmanov IE, Zajc WA, Zelenski A, and Zou L
Subjects: Motion, Photons, Food
Abstract: We present measurements of the cross section and double-helicity asymmetry A_{LL} of direct-photon production in p[over →]+p[over →] collisions at sqrt[s]=510 GeV. The measurements have been performed at midrapidity (|η|<0.25) with the PHENIX detector at the Relativistic Heavy Ion Collider. At relativistic energies, direct photons are dominantly produced from the initial quark-gluon hard scattering and do not interact via the strong force at leading order. Therefore, at sqrt[s]=510 GeV, where leading-order-effects dominate, these measurements provide clean and direct access to the gluon helicity in the polarized proton in the gluon-momentum-fraction range 0.02
Published: 2023
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