Author: "J. Ide" / Topic: nuclear experiment - Searchworks@Jio Institute Digital Library Search Results

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1. Measurement of jet-medium interactions via direct photon-hadron correlations in Au+Au and d+Au collisions at sNN=200 GeV

Author: Atsushi Takahara, K. A. Drees, A. V. Kazantsev, C. M. Camacho, Gary Grim, R. S. Towell, Prashant Shukla, Dmitry Blau, K. V. Dharmawardane, L. Tomášek, S. F. Pate, Ke. Nakamura, P. Mikeš, Y. Nakamiya, D. Lynch, H. Al-Bataineh, J. A. Key, J. Klatsky, P. Tarján, G. Baksay, J. B. Choi, L. Patel, I. Tserruya, S. Tarafdar, J. Hanks, S. Motschwiller, D. Ivanishchev, B. Voas, V. Papavassiliou, R. S. Hollis, C. E. Perezlara, E. P. Hartouni, V. Singh, H. Asano, T. C. Awes, E. Vazquez-Zambrano, E. J. Desmond, A. Hodges, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, Z. Sun, A. Yu. Semenov, M. Rosati, D. Kawall, Yuhei Morino, A. Nederlof, T. Murakami, E. M. Takagui, Eva Haslum, K. O. Eyser, Y. Onuki, Y. Imazu, Shoichi Hasegawa, S. Choi, T. Niida, S. P. Stoll, A. Sen, V. S. Pantuev, M. Sano, A. Lebedev, A. Rakotozafindrabe, Jan Rak, R. Lacey, M. Sarsour, Mate Csanad, Tomoya Tsuji, M. Mendoza, S. N. White, L. Zou, J. G. Lajoie, Deepa Thomas, K. Tanida, J. Hamblen, M. Nihashi, M. Skolnik, S. I. Morrow, S. Baumgart, S. Bathe, R. Granier de Cassagnac, Charles Maguire, Kenjiro Miki, Bruno Lenzi, N. Crossette, R. P. Pisani, Tamás Csörgő, U. Acharya, M. McCumber, P. Garg, S. Sawada, Masamichi Ishihara, A. Glenn, P. V. Radzevich, A. Ster, Y. Fukao, B. Azmoun, Y. J. Mao, M. Kawashima, Hiromi Iinuma, T. Hester, E. Kistenev, B. Ujvari, M. Kasai, N. A. Sparks, J. Ying, J. Runchey, A. Isinhue, N. Grau, H. Qu, M. Leitgab, Shuo Han, Eunja Kim, Motoi Inaba, J. C. Hill, Minghui Liu, R. M. Wright, Sung Keun Park, C. Baumann, Zvi Hirsh Citron, S. Yokkaichi, P. Lichtenwalner, Kensuke Homma, E. Richardson, Senta Greene, P. Rosnet, K. Fujiwara, H. Obayashi, Y. Tsuchimoto, A. Berdnikov, J. Newby, Hideki Hamagaki, W. Fan, K. Aoki, M. Vargyas, G. David, T. Todoroki, Y. Iwanaga, K. Das, K. Nakano, M. Heffner, Kenneth Francis Read, N. N. Ajitanand, K. Okada, Gerd Joachim Kunde, D. Richford, S. Taneja, H. Van Hecke, K. B. Kim, J. Alexander, Y. L. Yamaguchi, Frank Ellinghaus, B. Bassalleck, K. Karatsu, K. I. Hahn, B. Sahlmueller, H. A. Gustafsson, A. Král, S. Kametani, H. En'yo, Alexander Milov, I. Nakagawa, R. Luechtenborg, A. A. Vinogradov, S. P. Whitaker, A. Caringi, M. J. Leitch, I. Shein, E. Leitner, M. Patel, N. Ramasubramanian, T. Ichihara, Y. Ikeda, Takahiro Nakamura, M. Konno, H. Pei, Y. Hori, Anne Marie Sickles, H. Themann, K. Gainey, Young-Ki Kim, T. Engelmore, N. Novitzky, O. Drapier, C. P. Singh, K. Sedgwick, J. Midori, I. Younus, V. Borisov, Peter Christiansen, J. S. Bok, B. M. Johnson, P. Kline, K. S. Lee, A. Dion, E. O'Brien, Paul Constantin, M. Grosse Perdekamp, J. Huang, Bum-Hoon Lee, E. J. Mannel, T. Rinn, J. T. Mitchell, R. Seidl, G. R. Young, I. E. Yushmanov, A. Taranenko, W. E. Sondheim, E. R. Kinney, D. P. Morrison, Vladislav Manko, S. Campbell, B. H. Kang, S. Wolin, B. Blankenship, Susumu Oda, R. Akimoto, Jiangyong Jia, Y. Goto, N. Kamihara, T. Horaguchi, Mihael Makek, X. Jiang, C. Pinkenburg, N. A. Lewis, M. K. Dayananda, Aram Kim, F. Matathias, T. W. Jones, Filip Krizek, H. J. Kim, Vladimir Samsonov, Tatsuya Chujo, K. Dehmelt, S. R. P. Mohapatra, C. Zhang, A. Durum, Dillon Scott Fitzgerald, Iu. Mitrankov, T. Kempel, V. Canoa Roman, P. Chung, S. K. Park, P. Liebing, M. Wysocki, Jen-Chieh Peng, P. Ružička, A. Kiss, Byoungchoo Park, A. Isupov, B. Bannier, K. S. Sim, Christine Nattrass, A. Garishvili, J. Imrek, Y. Gu, K. Boyle, P. A. Rukoyatkin, M. Stepanov, G. Roche, P. Steinberg, D. Kleinjan, M. S. Ryu, D. Reynolds, S. Belikov, K. S. Joo, Torsten Dahms, K. Yamaura, M. Potekhin, C. Oakley, A. Drees, Henner Buesching, R. Yang, I. V. Sourikova, C. Vale, J. Sziklai, Steve Edwards, Yu. Efremenko, D. K. Mishra, Inkyu Park, A. Meles, R. A. Soltz, Ajit Kumar Mohanty, T. A. Shibata, T. Sato, Xiong Wang, B. Love, Z. Conesa del Valle, M. Naglis, T. Majoros, K. L. Smith, Takahiro Fusayasu, J. H. Kang, Y. Miyachi, Dong Jo Kim, Alexander Malakhov, K. Imai, M. Proissl, J. S. Haggerty, S. R. Lee, C. L. Silva, D. H. Kim, Brian Cole, M. S. Daugherity, Alberica Toia, D. Isenhower, T. Moon, Viktor Riabov, Z. Ji, D. Winter, Hongfang Liu, D. E. Fields, N. Apadula, X. Gong, M. Chiu, D. Yu Peressounko, Dennis Perepelitsa, Taku Gunji, H. Gong, F. Kajihara, A. Veicht, A. Basye, A. Vossen, C. A. Ogilvie, Y. Tanaka, Jihyun Bhom, Qiao Xu, Y. J. Kwon, J. M. Durham, D. Silvermyr, Eun Joo Kim, I. Garishvili, O. Dietzsch, F. Wei, Ryugo S. Hayano, A. K. Purwar, Ferdinando Giordano, S. Butsyk, Y. Komatsu, Aaron Angerami, S. Zhou, E. T. Atomssa, Yoshifumi Ueda, J. H. Do, R. Esha, R. Petti, Kisung Lee, T. K. Hemmick, Bhawani Singh, Yasuo Miake, Y. Riabov, M. Javani, S. D. Rolnick, H. Valle, Susumu Sato, B. Mulilo, Tomofumi Nagae, J. L. Nagle, Yanjun Wu, K. Watanabe, Dipanwita Dutta, Nagahiro Saito, C. P. Wong, N. Riveli, S. Esumi, Y. S. Lai, L. A. Linden Levy, D. Sharma, C. Gal, J. S. Kang, R. Ichimiya, L. S. Zolin, S. W. Nam, W. J. Park, K. DeBlasio, Christopher Rosen, L. Kochenda, M. Issah, P. Castera, Kenta Shigaki, H. J. Moon, L. Baksay, M. Nguyen, M. Connors, W. A. Zajc, Julia Velkovska, A. Khatiwada, Y. Zhai, A. Iordanova, K. Shoji, J. Ide, J. Murata, V. Baublis, Yongsun Kim, Don McGlinchey, K. Sakashita, A. G. Litvinenko, D. Firak, Martin Purschke, C. A. Aidala, W. Peng, P. W. Stankus, B. Komkov, A. Denisov, Yuki Watanabe, V. Cianciolo, D. Kotov, L. Guo, Alexei Khanzadeev, Agneta Oskarsson, D. Kincses, Shinichi Masumoto, A. Yanovich, L. Bichon, E. Stenlund, D. Kotchetkov, S. Huang, A. S. Nyanin, M. Larionova, Animesh Datta, Sergey Fokin, C. Y. Chi, Y. Berdnikov, M. Moskowitz, S. S.E. Rosendahl, Rachid Nouicer, Tsutomu Mibe, M. A. L. Leite, G. Bunce, J.-G. Park, A. N. Zelenski, Y. Watanabe, S. H. Lee, Z. Fraenkel, N. Cronin, C. Silvestre, Yasutada Akiba, C. McKinney, M. Mishra, S. Nagamiya, R. K. Choudhury, D. Hornback, D. Jouan, Vaclav Vrba, Klaus Johannes Reygers, Astrid Morreale, Rui Wei, M. Kurosawa, S. H. Lim, S. Solano, T. V. Moukhanova, R. Belmont, B. Meredith, D. Larionova, Marisilvia Donadelli, J. S. Kapustinsky, A. Adare, V. Babintsev, B. Lewis, V. Bumazhnov, D. Black, M. Tomášek, John Wood, J. P. Wessels, J. Seele, G. S. Kyle, Alice Mignerey, L. D'Orazio, S. Miyasaka, A. Franz, M. Ouchida, S. Hayashi, N. Means, J. Jin, Byung-Sik Hong, A. Bazilevsky, H. A. Torii, B. Kurgyis, Toru Sugitate, Pawan Kumar Netrakanti, X. Sun, D. M. Lee, A. Kozlov, R. Seto, K. Kiriluk, François Fleuret, Takao Sakaguchi, R. Tanabe, Jason Kamin, B. Fadem, A. D. Frawley, X. He, J. Sun, Y. Aramaki, V. Peresedov, Robert Vertesi, Barbara Jacak, Rushan Han, Wesley James Metzger, W. Holzmann, J. Koster, Maya Hachiya Shimomura, Vardan Khachatryan, Y. I. Makdisi, H. Masui, A. A. Bickley, C. L. Woody, A. Mwai, Sándor Lökös, K. N. Barish, S. Zharko, S. Sano, M. L. Brooks, M. J. Tannenbaum, E. Tennant, S. Rembeczki, S. Dairaku, M. Virius, Manabu Togawa, C. H. Chen, A. Manion, I. Ravinovich, M. Bai, E. C. Aschenauer, J. D. Osborn, Inseok Yoon, Zhiying You, R. Bennett, T. L.T. Thomas, M. Finger, J. E. Frantz, Jongmin Lee, A. Enokizono, P. K. Khandai, A. Taketani, Priyanka Sett, D. S. Jumper, Makoto Oka, K. B. Lee, S. Nelson, L. Ding, D. Roach, K. M. Kijima, A. Pun, K. Hashimoto, Xingguo Li, M. Gonin, H. Al-Ta'Ani, A. Sukhanov, K. Kurita, H. Pereira, C. O. Kim, R. Pak, S. Kaneti, S. P. Sorensen, O. Chvala, Seong H. Kim, T. Hachiya, A. Kravitz, S. V. Afanasiev, H. Sako, M. I. Nagy, D. Watanabe, Marcus Hohlmann, M. D. Malik, E. Vznuzdaev, J. Bryslawskyj, I. Danchev, Beomkyu Kim, Wei Xie, A. Deshpande, I. J. Choi, B. Xia, Tadaaki Isobe, M. Slunečka, P. L. McGaughey, Ralf Peter Averbeck, and A. Nukariya
Subjects: Quark, Physics, Photon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, Nuclear matter, 01 natural sciences, Nuclear physics, Deuterium, Fragmentation (mass spectrometry), 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We present direct photon-hadron correlations in 200 GeV/A Au+Au, d+Au, and p+p collisions, for direct photon pT from 5–12 GeV/c, collected by the PHENIX Collaboration in the years from 2006 to 2011. We observe no significant modification of jet fragmentation in d+Au collisions, indicating that cold nuclear matter effects are small or absent. Hadrons carrying a large fraction of the quark's momentum are suppressed in Au+Au compared to p+p and d+Au. As the momentum fraction decreases, the yield of hadrons in Au+Au increases to an excess over the yield in p+p collisions. The excess is at large angles and at low hadron pT and is most pronounced for hadrons associated with lower momentum direct photons. Comparison to theoretical calculations suggests that the hadron excess arises from medium response to energy deposited by jets.
Published: 2020

2. Azimuthally anisotropic emission of low-momentum direct photons in Au + Au collisions at sNN=200 GeV

Author: Hongfang Liu, D. E. Fields, Jong-Min Park, Taku Gunji, H. Gong, F. Kajihara, A. Basye, S. Bathe, K. Watanabe, M. Nihashi, R. S. Towell, I. Garishvili, F. Wei, M. McCumber, A. K. Purwar, K. Shoji, C. Silvestre, S. Butsyk, H. Van Hecke, O. Dietzsch, E. T. Atomssa, Kensuke Homma, K. Dehmelt, E. Richardson, Y. Ikeda, S. Zhou, H. Valle, S. Kanda, Yongsun Kim, J. Ide, Dipanwita Dutta, S. Kaneti, P. W. Stankus, Marisilvia Donadelli, V. Bumazhnov, R. Akimoto, C. Gal, Jen-Chieh Peng, S. D. Rolnick, R. P. Pisani, S. Taneja, C. Pinkenburg, Julia Velkovska, Yu. Efremenko, Animesh Datta, T. Sumita, C. Y. Chi, Yasutada Akiba, J. H. Kang, Y. Miyachi, T. Murakami, E. M. Takagui, J. S. Haggerty, S. R. Lee, B. Bassalleck, B. Kimelman, D. Reynolds, M. Stepanov, G. Roche, Y. S. Lai, Inkyu Park, S. P. Sorensen, O. Chvala, K. N. Barish, M. Konno, Sung Keun Park, R. Tanabe, P. Tarján, A. Yu. Semenov, N. N. Ajitanand, M. Kawashima, P. Montuenga, Xiong Wang, T. Niida, Dong Jo Kim, Z. Rowan, Tomoya Tsuji, M. Mendoza, S. Dairaku, A. Lebedev, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, Seong H. Kim, M. Beaumier, T. Sato, J. G. Lajoie, I. Younus, S. Sano, K. Karatsu, G. D. N. Perera, Takahiro Nakamura, S. N. White, S. Belikov, K. S. Joo, R. Belmont, S. Yokkaichi, Peter Christiansen, Yuhei Morino, C. Baumann, S. Kametani, D. K. Mishra, H. Sako, Atsushi Takahara, M. Alfred, T. Hachiya, S. Sawada, A. Veicht, S. Lee, Jennifer E. Perry, J. Ying, A. Franz, M. Rosati, Y. Nakamiya, D. Lynch, Susumu Oda, D. Isenhower, Shunji Nishimura, Tamás Csörgő, C. P. Singh, K. A. Drees, T. Kempel, Tamas Novak, T. Moon, Y. Fukao, R. A. Soltz, B. M. Johnson, J. G. Rubin, M. Naglis, Filip Krizek, M. L. Brooks, H. Nakagomi, T. Hoshino, N. Apadula, C. L. Silva, D. H. Kim, A. Vossen, A. Kravitz, Min-Hye Kim, Alberica Toia, G. Baksay, A. A. Vinogradov, A. Durum, Y. Hori, Anne Marie Sickles, H. Themann, X. He, J. Rak, Alexander Milov, K. Gainey, Barbara Jacak, Jiangyong Jia, Y. Goto, M. Virius, Manabu Togawa, T. Hester, R. Petti, A. Isupov, Zvi Hirsh Citron, I. Nakagawa, R. Luechtenborg, Young-Ki Kim, T. Engelmore, N. Novitzky, J. Sziklai, Hiromi Iinuma, Rushan Han, S. Esumi, Y. Aramaki, J. Klatsky, D. Sharma, Senta Greene, Alice Mignerey, M. Gonin, J. M. Durham, H. Ge, K. Das, K. Yamaura, V. Peresedov, Robert Vertesi, Y. J. Kwon, K. Nakano, O. Drapier, A. Král, J. B. Choi, R. Ichimiya, D. Kleinjan, E. R. Kinney, J. D. Orjuela Koop, N. A. Sparks, L. D'Orazio, S. Miyasaka, J. H. Do, Brian Cole, K. B. Kim, D. P. Morrison, C. L. Towell, Susumu Sato, Martin Purschke, C. H. Chen, M. Kurosawa, J. H. Yoo, C. A. Aidala, W. E. Sondheim, J. Koster, N. S. Bandara, J. S. Bok, A. V. Kazantsev, Vladimir Samsonov, Shoichi Hasegawa, S. Choi, J. T. Mitchell, S. Campbell, R. S. Hollis, B. H. Kang, E. P. Hartouni, A. Manion, Kei Nagashima, A. Sukhanov, K. Kurita, J. Huang, Bum-Hoon Lee, Pawan Kumar Netrakanti, G. W. Kim, P. Chung, N. Grau, N. Hotvedt, D. Kawall, H. Al-Ta'Ani, Tatsuya Chujo, S. Tarafdar, D. Kotchetkov, R. Seidl, Vladislav Manko, K. Tanida, B. Lewis, E. O'Brien, Christine Nattrass, K. Boyle, H. Masui, P. A. Rukoyatkin, D. Hornback, Z. Fraenkel, M. Leitgab, Shuo Han, J. E. Frantz, Jongmin Lee, H. Pereira, Matthew Snowball, T. O. S. Haseler, J. Imrek, Aaron White, J. Bryslawskyj, I. Danchev, I. Tserruya, J. S. Kang, A. Iordanova, M. Jezghani, A. A. Bickley, A. Mwai, Prakhar Garg, M. Wysocki, Raphael Noel Tieulent, Paul Constantin, V. Singh, B. Bannier, H. Qu, P. B. Diss, H. Asano, J. Murata, Kenjiro Miki, Bruno Lenzi, John Wood, G. R. Young, E. Kistenev, R. K. Choudhury, B. Azmoun, Y. J. Mao, B. Meredith, Motoi Inaba, J. C. Hill, Takao Sakaguchi, A. Sen, C. O. Kim, A. Enokizono, Eva Haslum, R. Pak, L. Tomášek, T. Koblesky, Beomkyu Kim, Wei Xie, M. Sarsour, V. S. Pantuev, C. M. Camacho, Prashant Shukla, M. Grosse Perdekamp, K. B. Lee, P. Mikeš, B. Love, R. M. Wright, D. Blau, S. F. Pate, A. Taketani, Hideki Hamagaki, K. Aoki, Priyanka Sett, M. Vargyas, Gerd Joachim Kunde, C. Vale, I. Shein, J. Jin, Ke. Nakamura, D. S. Jumper, Makoto Oka, Tomofumi Nagae, J. L. Nagle, P. Castera, P. Kline, G. David, T. Todoroki, K. S. Lee, A. Dion, E. J. Desmond, K. I. Hahn, A. Timilsina, M. E. Connors, M. Sano, A. Glenn, J. Hamblen, J. Hanks, L. Patel, L. Ding, A. G. Litvinenko, E. Vazquez-Zambrano, H. Al-Bataineh, A. Deshpande, J. A. Key, S. Afanasiev, A. Ster, N. Feege, Eunja Kim, K. Sedgwick, A. D. Frawley, Mihael Makek, I. Ravinovich, P. Liebing, A. Sexton, A. Nederlof, H. A. Torii, S. K. Park, Toru Sugitate, J. Newby, D. Roach, K. M. Kijima, S. Motschwiller, T. C. Awes, A. Rakotozafindrabe, Kyoichiro Ozawa, T. Liška, J. Sun, D. Ivanishchev, A. Kozlov, R. Seto, V. Papavassiliou, M. Bai, T. W. Danley, E. C. Aschenauer, M. Kasai, K. Hashimoto, K. Okada, B. Sahlmueller, H. En'yo, Y. Tsuchimoto, Tadaaki Isobe, Xingguo Li, B. Fadem, Y. Watanabe, I. J. Choi, B. Xia, I. E. Yushmanov, J. D. Osborn, Inseok Yoon, Zhiying You, J. Alexander, M. J. Leitch, R. Bennett, M. Slunečka, L. Guo, P. L. McGaughey, W. Holzmann, A. Taranenko, Alexei Khanzadeev, K. S. Sim, Shinichi Masumoto, H. F. Hamilton, T. L.T. Thomas, M. Finger, E. Stenlund, T. Horaguchi, M. Proissl, D. Winter, François Fleuret, S. Huang, H. A. Gustafsson, S. Beckman, D. Yu Peressounko, Maya Hachiya Shimomura, Vardan Khachatryan, Ralf Peter Averbeck, L. Zou, Dennis Perepelitsa, Y. I. Makdisi, Y. Tanaka, E. Mannel, S. Baumgart, Masamichi Ishihara, M. Javani, S. R. P. Mohapatra, C. Zhang, Minghui Liu, R. Yang, M. Heffner, T. V. Moukhanova, Kenneth Francis Read, T. Ichihara, P. Ružička, Viktor Riabov, Takahiro Fusayasu, K. V. Dharmawardane, K. Imai, M. I. Nagy, K. O. Eyser, D. Watanabe, Y. Onuki, M. J. Tannenbaum, Marcus Hohlmann, M. D. Malik, H. J. Moon, L. Baksay, B. K. Schmoll, Alexander Malakhov, H. Pei, E. Tennant, R. Lacey, E. Vznuzdaev, R. Granier de Cassagnac, A. Adare, R. Kitamura, Timothy Thomas Rinn, H. J. Kim, Charles Maguire, D. Silvermyr, L. S. Zolin, W. J. Park, Serpil Yalcin, Christopher Rosen, Aaron Angerami, A. Yanovich, W. A. Zajc, L. Xue, V. Baublis, A. Denisov, Yuki Watanabe, V. Cianciolo, Sergey Fokin, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, M. Nguyen, A. S. Nyanin, Rachid Nouicer, A. N. Zelenski, C. L. Woody, A. Berdnikov, Petr Gallus, A. Garishvili, I. V. Sourikova, J. P. Wessels, J. Seele, M. Ouchida, N. Means, M. Patel, X. Jiang, Torsten Dahms, K. Sakashita, D. Kotov, M. S. Daugherity, Eun Joo Kim, Ferdinando Giordano, Y. Komatsu, A. Kiss, Henner Buesching, Jason Kamin, Steve Edwards, M. Tomášek, S. P. Stoll, G. S. Kyle, X. Gong, S. S.E. Rosendahl, G. Bunce, L. A. Linden Levy, J.-G. Park, Agneta Oskarsson, D. Jouan, Byung-Sik Hong, Y. Berdnikov, A. Bazilevsky, S. H. Lee, C. McKinney, M. Mishra, Brennan Schaefer, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, Astrid Morreale, Rui Wei, H. W. Yu, P. Rosnet, C. A. Ogilvie, K. Fujiwara, Kisung Lee, T. K. Hemmick, Bhawani Singh, B. J. Ramson, Y. L. Yamaguchi, Frank Ellinghaus, Yasuo Miake, D. M. Lee, K. DeBlasio, L. Kochenda, M. Issah, E. Leitner, R. Pinson, S. Mizuno, Don McGlinchey, S. Wolin, N. Kamihara, K. Kiriluk, F. Matathias, B. Komkov, Byoungchoo Park, A. Drees, Norio Saito, Tsutomu Mibe, M. A. L. Leite, S. H. Lim, J. S. Kapustinsky, V. Babintsev, Mate Csanad, and A. Meles
Subjects: Physics, Photon, 010308 nuclear & particles physics, media_common.quotation_subject, Hadron, Bremsstrahlung, 01 natural sciences, Asymmetry, Particle identification, Nuclear physics, 0103 physical sciences, Rapidity, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Anisotropy, media_common
Abstract: The PHENIX experiment at the BNL Relativistic Heavy Ion Collider has measured second- and third-order Fourier coefficients of the azimuthal distributions of direct photons emitted at midrapidity in Au+Au collisions at sNN=200 GeV for various collision centralities. Combining two different analysis techniques, results were obtained in the transverse momentum range of 0.4
Published: 2016

3. Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions atsNN=200GeV

Author: C. Silvestre, Y. I. Makdisi, S. Belikov, K. S. Joo, L. Tomášek, J. Wessels, Alberica Toia, Marisilvia Donadelli, V. Bumazhnov, S. Mizuno, Yuhei Morino, E. M. Takagui, M. Kurosawa, P. Mikeš, Y. J. Kwon, E. J. Desmond, M. J. Tannenbaum, T. Engelmore, B. Komkov, Kenjiro Miki, Bruno Lenzi, E. Kistenev, K. Watanabe, S. N. White, R. Tanabe, A. Morreale, N. Kamihara, H. Pei, J. Hanks, S. Esumi, John Wood, D. Sharma, T. C. Awes, Kyoichiro Ozawa, T. Liška, I. Tserruya, F. Matathias, K. Shoji, R. Ichimiya, Senta Greene, Norio Saito, E. Vazquez-Zambrano, A. Rakotozafindrabe, J. Jin, Yongsun Kim, S. Afanasiev, K. Das, M. A. L. Leite, P. W. Stankus, P. Chung, S. Sawada, Barbara Jacak, C. L. Woody, Alice Mignerey, A. Berdnikov, J. Ying, A. Franz, Masamichi Ishihara, K. Nakano, A. Drees, Rushan Han, Martin Purschke, C. A. Aidala, W. E. Sondheim, J. Newby, Y. Tanaka, D. Ivanischev, Y. Tsuchimoto, E. Mannel, C. Baumann, Paul Constantin, Minghui Liu, B. Love, Takao Sakaguchi, M. I. Nagy, D. Watanabe, D. Kotchetkov, K. Boyle, P. A. Rukoyatkin, S. Kametani, V. S. Pantuev, K. Sakashita, J. Alexander, L. Baksay, S. Bathe, V. Singh, Marcus Hohlmann, I. E. Yushmanov, E. O 'Brien, C. P. Singh, K. A. Drees, M. Heffner, B. M. Johnson, Kenneth Francis Read, H. Qu, M. Grosse Perdekamp, A. Yu. Semenov, D. Hornback, J. S. Kapustinsky, Agneta Oskarsson, A. D. Frawley, Z. Fraenkel, Vladimir Samsonov, T. Ichihara, E. Vznuzdaev, H. A. Gustafsson, B. Meredith, J. Hamblen, M. Virius, A. Isupov, Hideki Hamagaki, K. Aoki, Y. Watanabe, R. K. Choudhury, J. E. Frantz, G. David, T. Todoroki, M. E. Connors, K. I. Hahn, V. Babintsev, Jason Kamin, B. Azmoun, Y. J. Mao, A. Král, S. K. Park, A. Lebedev, Y. Berdnikov, J. Sziklai, S. P. Stoll, A. Taranenko, C. Zhang, W. Holzmann, Alexei Khanzadeev, Kensuke Homma, E. Richardson, Brian Cole, M. Mishra, S. Nagamiya, K. Okada, Tadaaki Isobe, T. Horaguchi, B. Sahlmueller, Jongmin Lee, R. S. Towell, S. S.E. Rosendahl, G. Bunce, J.-G. Park, M. Chiu, Ajit Kumar Mohanty, E. Stenlund, I. V. Sourikova, S. Huang, M. J. Leitch, Vaclav Vrba, Klaus Johannes Reygers, H. A. Torii, Toru Sugitate, Torsten Dahms, J. L. Nagle, I. Garishvili, F. Wei, Kyeongpil Lee, M. Slunečka, O. Dietzsch, D. Jouan, K. S. Lee, A. Dion, A. G. Litvinenko, P. Liebing, Rui Wei, R. A. Soltz, E. T. Atomssa, A. Kiss, A. Glenn, H. Valle, J. Seele, S. Tarafdar, I. Younus, Peter Christiansen, T. Kempel, Viktor Riabov, R. Belmont, S. Yokkaichi, François Fleuret, Eunja Kim, David Olle Rickard Silvermyr, M. Proissl, D. Winter, D. Yu Peressounko, M. Naglis, J. Ide, Animesh Datta, M. Ouchida, Dipanwita Dutta, Henner Buesching, Jen-Chieh Peng, Ralf Peter Averbeck, D.H. Kim, T. A. Shibata, T. Sato, B. Bassalleck, P.L. McGaughey, Eun Joo Kim, C. L. Silva, N. Means, M. Wysocki, C. M. Camacho, C. Y. Chi, Prashant Shukla, W. A. Zajc, Yasutada Akiba, A. Kozlov, Julia Velkovska, Yu. Efremenko, C. A. Ogilvie, Steve Edwards, V. Baublis, D. Reynolds, M. Rosati, I. Danchev, Eva Haslum, G. S. Kyle, A. Denisov, V. Cianciolo, M. Konno, T. K. Hemmick, Bhawani Singh, Yasuo Miake, R. Seto, P. Ruzicka, D. Isenhower, T. V. Moukhanova, J. H. Kang, S. F. Pate, J. S. Haggerty, Beomkyu Kim, Inkyu Park, Wei Xie, Xiong Wang, Sergey Fokin, L. Kochenda, M. Issah, Malik, A. Deshpande, Byung-Sik Hong, A. Bazilevsky, J. M. Durham, Dong Jo Kim, Takahiro Fusayasu, Alexander Malakhov, A. A. Vinogradov, B. Fadem, H. Al-Bataineh, L. A. Linden Levy, Y. Nakamiya, D. Lynch, I. J. Choi, Ryugo S. Hayano, L. S. Zolin, A. Enokizono, Jiangyong Jia, Y. Goto, Y. Riabov, P. Rosnet, X. He, Y. S. Lai, A. Veicht, K. Fujiwara, D. Kawall, W. J. Park, Christopher Rosen, Taku Gunji, H. Gong, A. Yanovich, H. Van Hecke, Kenta Shigaki, D. M. Lee, A. Taketani, M. Nguyen, J. Murata, Y. L. Yamaguchi, K. Tanida, Y. Ikeda, G. Baksay, Alexander Milov, Y. Aramaki, F. Kajihara, A. S. Nyanin, V. Peresedov, Robert Vertesi, K. Kiriluk, A. Basye, I. Nakagawa, R. Luechtenborg, D. S. Jumper, Makoto Oka, E. Leitner, Tamas Ferenc Csorgo, Rachid Nouicer, V. Papavassiliou, O. Drapier, Frank Ellinghaus, Zvi Hirsh Citron, E. R. Kinney, J. Koster, C. Pinkenburg, D. P. Morrison, S. Campbell, S. Butsyk, Gerd Joachim Kunde, G. Roche, Tatsuya Chujo, S. Zhou, I. Shein, J. T. Mitchell, S. D. Rolnick, I. Ravinovich, H. Masui, R. Seidl, Vladislav Manko, K. Sedgwick, A. A. Bickley, M. Bai, K. N. Barish, C. Vale, S. Sano, Zhiying You, R. Bennett, M. L. Brooks, T. L.T. Thomas, M. Finger, S. Dairaku, Manabu Togawa, N. N. Ajitanand, C. H. Chen, Takahiro Nakamura, M. Gonin, Y. Onuki, Susumu Oda, A. Sukhanov, K. Kurita, Jan Rak, E. P. Hartouni, R. Lacey, H. Pereira, A. Durum, R. Granier de Cassagnac, A. Adare, Charles Maguire, K. Yamaura, R. Pak, K. B. Lee, Hongfang Liu, D. E. Fields, M. McCumber, A. K. Purwar, K. Karatsu, D. Roach, K. M. Kijima, Anne Marie Sickles, H. Themann, Xingguo Li, J. S. Bok, S. P. Sorensen, O. Chvala, Seong H. Kim, J. G. Lajoie, A. Kravitz, G. R. Young, K. S. Sim, H. En 'yo, Mate Csanad, R. Yang, R. P. Pisani, K. Imai, M. Kawashima, Y. Fukao, T. Hester, N. A. Sparks, N. Grau, Motoi Inaba, J. C. Hill, R. M. Wright, A. V. Kazantsev, Maya Hachiya Shimomura, and P. Tarján
Subjects: Physics, Valence (chemistry), 010308 nuclear & particles physics, Hadron, Kinetic energy, 01 natural sciences, Spectral line, Transverse plane, 0103 physical sciences, Quark–gluon plasma, Atomic physics, Impact parameter, Nuclear Experiment, 010306 general physics, Anisotropy
Abstract: Measurements of the anisotropic flow coefficients v2{Ψ2},v3{Ψ3},v4{Ψ4}, and v4{Ψ2} for identified particles (π±,K±, and p+p) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at sNN=200GeV, are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vn{Ψm}/(Nq)n/2 versus transverse kinetic energies (KET)/Nq] is observed to yield a single curve for all the measured particle species for a broad range of KET. A simultaneous blast-wave model fit to the observed vn{Ψm}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρn{Ψm} and spatial eccentricities sn{Ψm} at freeze-out. These are generally smaller than the initial-state participant-plane geometric eccentricities n{ΨmPP} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane. © 2016 American Physical Society. (Less)
Published: 2016

4. Scaling properties of fractional momentum loss of high-pThadrons in nucleus-nucleus collisions atsNNfrom 62.4 GeV to 2.76 TeV

Author: V. I. Kochetkov, Gerd Joachim Kunde, I. Shein, K. Sedgwick, Mihael Makek, Sung Keun Park, L. Guo, Y. Watanabe, N. N. Ajitanand, Alexei Khanzadeev, M. Tomášek, M. Rosati, Tamás Csörgő, Paul Constantin, G. D. N. Perera, A. Soldatov, Takahiro Nakamura, M. Grosse Perdekamp, G. S. Kyle, Shinichi Masumoto, E. Stenlund, M. E. Connors, S. Huang, Mate Csanad, A. A. Vinogradov, Susumu Oda, S. K. Park, A. Durum, Jiangyong Jia, M. Naglis, Y. Goto, H. Nakagomi, T. Hoshino, C. L. Silva, D. H. Kim, K. Yamaura, H. Sakata, J. M. Durham, J. H. Do, C. L. Towell, Susumu Sato, A. Yu. Semenov, A. Hadj Henni, M. Proissl, D. Kleinjan, D. Winter, D. Yu Peressounko, J. Bryslawskyj, I. Danchev, Dennis Perepelitsa, Byung-Sik Hong, Atsushi Takahara, P. Tarján, T. Niida, A. Lebedev, Beomkyu Kim, Wei Xie, Maya Hachiya Shimomura, A. Bazilevsky, Vardan Khachatryan, M. Nihashi, A. Meles, Yuhei Morino, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, S. Wolin, Y. I. Makdisi, Shunji Nishimura, K. A. Drees, N. Kamihara, T. E. Miller, T. Tabaru, T. Murakami, E. M. Takagui, David D'Enterria, F. Staley, Hongfang Liu, D. E. Fields, A. Deshpande, S. F. Pate, T. V. Moukhanova, Hiromi Iinuma, F. Matathias, R. Armendariz, Senta Greene, H. W. Yu, K. S. Sim, O. Dietzsch, K. Watanabe, Kei Nagashima, A. Baldisseri, Christian Klein-Boesing, M. McCumber, A. K. Purwar, Byoungchoo Park, R. P. Pisani, J. Rak, R. Belmont, R. Tanabe, S. Bathe, A. Drees, S. Yokkaichi, G. W. Kim, P. Chung, B. E. Norman, D. M. Lee, E. T. Atomssa, H. Valle, H. Van Hecke, J. Imrek, Agneta Oskarsson, I. J. Choi, B. Xia, M. J. Tannenbaum, Alberica Toia, Tae-Yeon Lee, Dipanwita Dutta, Robert F. Hobbs, E. O'Brien, B. K. Schmoll, S. Takagi, Raphael Noel Tieulent, Min-Hye Kim, Junji Tojo, J. Klatsky, J. B. Choi, C. Gal, J. Kubart, J. L. Klay, M. N. Wagner, W. S. Emam, Y. Berdnikov, M. Kawashima, Y. Fukao, A. Shevel, K. Kiriluk, Y. Ikeda, J. G. Boissevain, Masashi Kaneta, S. H. Lee, Y. Akiba, Anand Kumar Dubey, Barbara Jacak, S. Dairaku, Julia Velkovska, S. Kanda, Yongsun Kim, E. Tennant, S. Rembeczki, C. Silvestre, C. McKinney, S. V. Afanasiev, Martin Purschke, H. Sako, Rushan Han, M. Mishra, Brennan Schaefer, S. Nagamiya, T. Hester, R. S. Hollis, P. W. Stankus, E. P. Hartouni, Y. J. Kwon, M. Chiu, Ajit Kumar Mohanty, Z. Rowan, Tomoya Tsuji, T. A. Shibata, M. B. Deaton, M. K. Mitrovski, L. Aphecetche, C. A. Aidala, M. Mendoza, T. Sato, C. Baumann, S. Kametani, N. S. Bandara, Kensuke Homma, B. Kimelman, Vladimir Samsonov, Christine Nattrass, S. N. White, R. Akimoto, M. Patel, Y. Tanaka, E. Mannel, R. Yang, H. Hiejima, X. Jiang, C. Pinkenburg, C. P. Singh, N. A. Sparks, Christophe Pierre Suire, Alexander Milov, I. Nakagawa, R. Luechtenborg, Young-Ki Kim, T. Engelmore, N. Novitzky, K. N. Barish, C. A. Ogilvie, Kisung Lee, T. K. Hemmick, Bhawani Singh, M. K. Lee, K. Imai, Vaclav Vrba, Klaus Johannes Reygers, Astrid Morreale, Rui Wei, O. Zaudtke, J. S. Kang, K. O. Eyser, D. Isenhower, Tamas Novak, T. Moon, L. Mašek, D. Kotchetkov, A. Kiss, B. J. Ramson, Yasuo Miake, O. Drapier, V-N. Tram, N. Grau, Y. Onuki, M. Leitgab, Shuo Han, Johannes Peter Wessels, M. Stepanov, G. Roche, A. Iordanova, J. Murata, Zvi Hirsh Citron, M. Javani, Nagahiro Saito, P. Montuenga, C. R. Cleven, I. Younus, C. Haegemann, Y. Inoue, Tomofumi Nagae, J. L. Nagle, Yu. Efremenko, C. L. Woody, A. Berdnikov, B. M. Johnson, E. R. Kinney, Filip Krizek, V. S. Pantuev, S. Sawada, P. Castera, H. Ge, K. Das, Z. Yasin, Henner Buesching, Peter Christiansen, M. Sano, Steve Edwards, K. Nakano, E. Richardson, S. Chernichenko, J. H. Kang, Y. Miyachi, Motoi Inaba, J. C. Hill, J. S. Haggerty, Z. Fraenkel, S. R. Lee, J. Hamblen, H. Kanou, Torsten Dahms, H. J. Moon, A. Romana, R. Lacey, D. P. Morrison, K. DeBlasio, T. Kempel, L. Baksay, R. M. Wright, Jong-Min Park, Taku Gunji, H. Gong, S. Campbell, K. B. Kim, J. Ying, A. Franz, F. Kajihara, B. H. Kang, A. Isupov, A. Basye, M. Virius, L. Kochenda, M. Issah, Manabu Togawa, R. Granier de Cassagnac, M. S. Daugherity, W. E. Sondheim, A. Adare, X. Gong, Shoichi Hasegawa, H. Delagrange, R. K. Choudhury, B. Bassalleck, K. Okada, Steven E. Skutnik, Eun Joo Kim, Ferdinando Giordano, Charles Maguire, B. Sahlmueller, H. En'yo, R. Pinson, Don McGlinchey, B. Azmoun, Y. J. Mao, V. E. Semenov, Y. Komatsu, S. Choi, S. Butsyk, A. Král, J. Sziklai, L. A. Linden Levy, M. J. Leitch, M. J. Kweon, T. O. S. Haseler, S. Sano, K. Boyle, P. A. Rukoyatkin, H. Al-Ta'Ani, Tatsuya Chujo, J. D. Orjuela Koop, H. Qu, P. B. Diss, S. Zhou, P. Rosnet, S. D. Rolnick, S. Taneja, Petr Gallus, Osamu Jinnouchi, Brian Cole, R. S. Towell, K. Fujiwara, K. Sakashita, D. Kotov, C. H. Chen, M. Konno, B. Komkov, Kenjiro Miki, Y. S. Lai, K. Karatsu, K. Dehmelt, Hideki Hamagaki, K. Aoki, M. Vargyas, G. David, T. Todoroki, K. I. Hahn, Bruno Lenzi, E. Kistenev, Y. L. Yamaguchi, D. Mukhopadhyay, Frank Ellinghaus, Matthew G. Reuter, Takahiro Fusayasu, I. Garishvili, Akio Kiyomichi, Jen-Chieh Peng, F. Wei, Dmitry Blau, Y. Hori, Anne Marie Sickles, A. Manion, E. Leitner, H. Themann, K. Gainey, J. Egdemir, Jason Kamin, J. Huang, S. Mizuno, Tsutomu Mibe, M. A. L. Leite, E. J. Desmond, J. Hanks, Bum-Hoon Lee, Alexander Malakhov, J. S. Bok, I. Ravinovich, D. Reynolds, P. Kline, K. S. Lee, A. Dion, E. Vazquez-Zambrano, N. Kurihara, A. Nederlof, Y. Nakamiya, D. Lynch, H. Harada, A. Garishvili, Y. Nagata, S. P. Stoll, J. Ide, Prakhar Garg, M. Wysocki, D. Silvermyr, Inkyu Park, A. Rakotozafindrabe, S. H. Lim, M. Kasai, M. Bai, Y. Tsuchimoto, B. Bannier, G. R. Young, M. Gonin, Xiong Wang, E. C. Aschenauer, J. Chiba, L. S. Zolin, I. E. Yushmanov, Animesh Datta, T. Sumita, J. S. Kapustinsky, S. S.E. Rosendahl, G. Bunce, Alice Mignerey, J.-G. Park, L. D'Orazio, S. Miyasaka, C. Y. Chi, G. Baksay, W. J. Park, Christopher Rosen, C. M. Camacho, Prashant Shukla, Pawan Kumar Netrakanti, I. V. Sourikova, V. Babintsev, Dong Jo Kim, P. Liebing, P. D. Barnes, A. Yanovich, Aaron White, M. Beaumier, S. Belikov, K. S. Joo, K. Shoji, A. Churyn, Ke. Nakamura, A. Sukhanov, K. Kurita, Takao Sakaguchi, A. Sen, M. L. Brooks, M. Kurosawa, D. Hornback, Matthew Snowball, J. H. Yoo, J. D. Osborn, H. Al-Bataineh, Inseok Yoon, Zhiying You, D. K. Mishra, D. Jouan, A. D. Frawley, J. G. Rubin, B. Meredith, J. A. Key, R. Bennett, J. Sun, B. Lewis, S. H. Aronson, T. L.T. Thomas, C. O. Kim, N. Apadula, S. Motschwiller, R. Pak, A. Veicht, X. He, J. Zimamyi, S. Tarafdar, M. Finger, John Wood, H. A. Torii, D. Ivanishchev, V. Papavassiliou, W. Holzmann, H. F. Hamilton, J. E. Frantz, Jongmin Lee, I. Tserruya, Toru Sugitate, L. D. Isenhower, S. Kaneti, S. P. Sorensen, Sébastien Gadrat, D. Pal, Dylan Walker, J. Jin, A. Vossen, R. Petti, M. Jezghani, O. O. Omiwade, O. Chvala, Seong H. Kim, J. T. Mitchell, V. Singh, J. G. Lajoie, M. Alfred, T. Hachiya, S. Esumi, S. Lee, Jennifer E. Perry, A. Enokizono, Y. Aramaki, D. Sharma, R. Ichimiya, François Fleuret, A. Kravitz, N. Hotvedt, R. Seidl, Hiroaki Ohnishi, K. B. Lee, T. Koblesky, Vladislav Manko, A. Taketani, Priyanka Sett, H. Asano, V. Peresedov, Robert Vertesi, D. S. Jumper, Makoto Oka, M. Sarsour, V. L. Rykov, L. Ding, S. Mioduszewski, D. Roach, K. M. Kijima, J. Gosset, H. Pei, Eva Haslum, K. Hashimoto, A. Glenn, Xingguo Li, C. Vale, J. Koster, Eunja Kim, B. S. Chang, A. Timilsina, Timothy Thomas Rinn, H. J. Kim, H. Masui, A. Ster, N. Feege, A. A. Bickley, J. Newby, A. Mwai, B. Love, Tadaaki Isobe, A. G. Litvinenko, M. Slunečka, A. Taranenko, J. L. Charvet, A. Sexton, T. Horaguchi, P. L. McGaughey, A. Kozlov, R. Seto, K. Haruna, T. W. Danley, S. Beckman, Ralf Peter Averbeck, J. Seele, B. Fadem, V. Dzhordzhadze, L. Zou, M. Ouchida, S. Baumgart, Masamichi Ishihara, N. Means, Minghui Liu, J. Asai, M. Heffner, Kenneth Francis Read, H. Pereira, Shingo Sakai, T. Ichihara, A. V. Kazantsev, L. Tomášek, Ryugo S. Hayano, P. Mikeš, Y. Riabov, Kenta Shigaki, M. Nguyen, A. S. Nyanin, Rachid Nouicer, A. N. Zelenski, L. Patel, T. C. Awes, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, Serpil Yalcin, Aaron Angerami, W. A. Zajc, L. Xue, V. Baublis, A. Denisov, Yuki Watanabe, V. Cianciolo, Sergey Fokin, S. Batsouli, K. V. Dharmawardane, R. A. Soltz, R. Kitamura, A. P.T. Palounek, J. Alexander, H. A. Gustafsson, S. R. P. Mohapatra, C. Zhang, P. Ružička, H. Borel, Viktor Riabov, M. I. Nagy, D. Watanabe, Marcus Hohlmann, M. D. Malik, E. Vznuzdaev, D. Kawall, and K. Tanida
Subjects: Quark, Physics, Particle physics, 010308 nuclear & particles physics, Hadron, Parton, 16. Peace & justice, 7. Clean energy, 01 natural sciences, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Centrality, Relativistic Heavy Ion Collider, Glauber, Energy (signal processing)
Abstract: Measurements of the fractional momentum loss $({S}_{\mathrm{loss}}\ensuremath{\equiv}\ensuremath{\delta}{p}_{T}/{p}_{T})$ of high-transverse-momentum-identified hadrons in heavy-ion collisions are presented. Using ${\ensuremath{\pi}}^{0}$ in $\mathrm{Au}+\mathrm{Au}$ and $\mathrm{Cu}+\mathrm{Cu}$ collisions at $\sqrt{{s}_{{}_{NN}}}=62.4$ and 200 GeV measured by the PHENIX experiment at the Relativistic Heavy Ion Collider and and charged hadrons in $\mathrm{Pb}+\mathrm{Pb}$ collisions measured by the ALICE experiment at the Large Hadron Collider, we studied the scaling properties of ${S}_{\mathrm{loss}}$ as a function of a number of variables: the number of participants, ${N}_{\mathrm{part}}$, the number of quark participants, ${N}_{\mathrm{qp}}$, the charged-particle density, $d{N}_{\mathrm{ch}}/d\ensuremath{\eta}$, and the Bjorken energy density times the equilibration time, ${\ensuremath{\varepsilon}}_{\mathrm{Bj}}{\ensuremath{\tau}}_{0}$. We find that the ${p}_{T}$, where ${S}_{\mathrm{loss}}$ has its maximum, varies both with centrality and collision energy. Above the maximum, ${S}_{\mathrm{loss}}$ tends to follow a power-law function with all four scaling variables. The data at $\sqrt{{s}_{{}_{NN}}}=200$ GeV and 2.76 TeV, for sufficiently high particle densities, have a common scaling of ${S}_{\mathrm{loss}}$ with $d{N}_{\mathrm{ch}}/d\ensuremath{\eta}$ and ${\ensuremath{\varepsilon}}_{\mathrm{Bj}}{\ensuremath{\tau}}_{0}$, lending insight into the physics of parton energy loss.
Published: 2016

5. Systematic study of charged-pion and kaon femtoscopy in Au + Au collisions atsNN=200GeV

Author: N. N. Ajitanand, G. D. N. Perera, Takahiro Nakamura, Susumu Oda, A. Durum, K. Yamaura, Taku Gunji, H. Gong, J. Seele, M. Patel, F. Kajihara, Y. Onuki, I. Tserruya, M. Jezghani, Yu. Efremenko, S. Butsyk, V. Singh, S. Zhou, Jan Rak, R. Lacey, S. D. Rolnick, D. Danley, Hongfang Liu, D. E. Fields, B. V. Jacak, T. Koblesky, M. McCumber, J. Hanks, Ajit Kumar Mohanty, T. A. Shibata, R. Granier de Cassagnac, A. Adare, T. Sato, A. Glenn, D. Isenhower, A. Toia, T. Moon, Eunja Kim, Jongmin Lee, Z. Rowan, M. Mendoza, S. N. White, S. Hasegawa, F. Matathias, H. Pei, M. Gonin, S. Kametani, D. Lynch, A. Sukhanov, K. Kurita, H. Pereira, Kensuke Homma, E. Richardson, N. S. Bandara, Y. Morino, Henner Buesching, M. Naglis, H. Nakagomi, Steve Edwards, T. Hoshino, C. O. Kim, R. Pak, A. Taketani, Zvi Hirsh Citron, M. S. Daugherity, C. P. Singh, Marcus Hohlmann, Vladimir Samsonov, P. Constantin, T. Dahms, L. A. Linden Levy, B. M. Johnson, Christine Nattrass, Johannes Peter Wessels, Masayasu Ishihara, A. K. Purwar, K. Fujiwara, H. A. Gustafsson, T. Todoroki, C. Zhang, R. J. Petti, H. Ge, K. B. Lee, B. Bassalleck, K. Nakano, I. Ravinovich, J. H. Do, C. L. Towell, P. Ružička, E. Leitner, D. Roach, K. M. Kijima, A. Isupov, B. Kimelman, K. Hashimoto, M. Konno, Xingguo Li, S. Mizuno, S. P. Sorensen, A. Yu. Semenov, Viktor Riabov, Kei Nagashima, O. Chvala, Seong H. Kim, G. W. Kim, P. Chung, M. Beaumier, K. S. Joo, J. G. Lajoie, M. Alfred, T. Hachiya, Jennifer E. Perry, H. W. Van Hecke, A. Kravitz, Raphael Noel Tieulent, S. Afanasiev, J. P. Wood, N. Feege, Susumu Sato, W. E. Sondheim, M. Bai, Alexander Milov, I. Nakagawa, R. Luechtenborg, J. Sziklai, A. Datta, H. Asano, T. Engelmore, Tamas Ferenc Csorgo, O. Drapier, Frank Ellinghaus, S. Bathe, Alice Mignerey, S. Miyasaka, S. Esumi, Agneta Oskarsson, E. R. Kinney, D. P. Morrison, Takao Sakaguchi, A. Sen, Y. Berdnikov, S. H. Lee, A. D. Frawley, J. L. Nagle, K. S. Sim, A. S. White, S. Huang, D. Hornback, Tatsuya Chujo, Y. Akiba, C. McKinney, M. Mishra, Jen-Chieh Peng, J. G. Rubin, W. Holzmann, Serpil Yalcin, S. Nagamiya, H. F. Hamilton, Maya Hachiya Shimomura, R. S. Hollis, Y. I. Makdisi, R. Yang, X. He, K. Boyle, Brian Cole, D. Reynolds, A. Taranenko, Vaclav Vrba, Klaus Johannes Reygers, Inkyu Park, M. J. Tannenbaum, H. Torii, B. K. Schmoll, Xiong Wang, Jaehyeok Yoo, W. A. Zajc, L. Xue, Rui Wei, K. Imai, V. Baublis, D. Sharma, A. Denisov, Yuki Watanabe, Kazushi Miki, V. Cianciolo, Dong Jo Kim, Brajesh K. Singh, Sergey Fokin, K. Karatsu, P. A. Rukoyatkin, J. D. Osborn, Inseok Yoon, Zhiying You, Anne Marie Sickles, B. Schaefer, L. Zou, J. S. Bok, D. Kotchetkov, Y. Aramaki, M. Wysocki, R. Bennett, M. Kawashima, V. Peresedov, G. R. Young, M. Finger, S. Dairaku, M. Stepanov, C. L. Woody, A. Berdnikov, S. Tarafdar, Minghui Liu, Eva Haslum, B. Lenzi, J. Koster, M. Heffner, C. Silvestre, Kenneth Francis Read, Marisilvia Donadelli, V. Bumazhnov, M. Virius, Min Soo Kim, R. Tanabe, H. Masui, A. A. Bickley, Rushan Han, J. D. Orjuela Koop, C. H. Chen, A. Veicht, A. Mwai, A. Manion, Petr Gallus, J. Bryslawskyj, C. L. Silva, Beomkyu Kim, Wei Xie, M. Snowball, Y. Tanaka, I. J. Choi, B. Xia, E. Mannel, I. V. Sourikova, R. A. Soltz, M. Grosse Perdekamp, F. Giordano, M. E. Connors, S. K. Park, M. I. Nagy, D. Watanabe, Nagahiro Saito, T. Novák, M. D. Malik, E. Vznuzdaev, Peter Christiansen, M. Kurosawa, L. Baksay, A. Deshpande, D. Winter, D. Yu Peressounko, J. T. Mitchell, Y. Watanabe, N. Hotvedt, I. Younus, R. Seidl, Vladislav Manko, Hai Yu, K. N. Barish, D. Kawall, H. Themann, M. Slunečka, Dennis Perepelitsa, S. Belikov, J. Murata, Gerd Joachim Kunde, I. Shein, C. Vale, K. Sedgwick, Tadaaki Isobe, S. Sano, Mihael Makek, A. Timilsina, Y. Nakamiya, G. Baksay, Charles Maguire, B. Sahlmueller, M. L. Brooks, P. L. McGaughey, Y. J. Kim, Kiyoshi Tanida, E. Kistenev, J. Sun, T. Murakami, J. Jin, S. Beckman, E. M. Takagui, Shunji Nishimura, K. A. Drees, J. Klatsky, B. Love, Y. L. Yamaguchi, K. Das, E. P. Hartouni, A. G. Litvinenko, A. V. Kazantsev, A. Sexton, A. Kozlov, R. Seto, I. Danchev, L. Tomášek, P. Mikeš, R. S. Towell, I. Garishvili, F. Wei, Kyeongpil Lee, J. Ide, T. Sumita, T. C. Awes, Kyoichiro Ozawa, T. Liška, M. Ouchida, N. Means, C. Y. Chi, S. Sawada, J. Ying, B. Meredith, T. L. Thomas, John Hill, A. Franz, Toru Sugitate, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, M. Rosati, François Fleuret, T. Ichihara, M. Tomášek, Takahiro Fusayasu, M. Nguyen, Alexander Malakhov, D. Silvermyr, L. S. Zolin, W. J. Park, Christopher Rosen, A. S. Nyanin, G. S. Kyle, A. Yanovich, A. A. Vinogradov, Rachid Nouicer, A. N. Zelenski, M. Proissl, P. Sett, James Alexander, Jiangyong Jia, Y. Goto, R. Averbeck, D. Kleinjan, S. Campbell, Byung-Sik Hong, A. Bazilevsky, Philippe Rosnet, Alexei Khanzadeev, O. Dietzsch, E. T. Atomssa, H. Valle, Alexandre Lebedev, E. Stenlund, C. Baumann, Takafumi Niida, J. Huang, Dipanwita Dutta, C. Gal, P. Tarján, D. M. Lee, Julia Velkovska, J. B. Choi, Prakhar Garg, Senta Greene, A. T. Basye, B. Fadem, E. O'Brien, B. Bannier, Dipak Kumar Mishra, K. Kiriluk, B. Komkov, K. Watanabe, Y. Fukao, K. Shoji, M. A. L. Leite, T. Hester, S. Kanda, T. Horaguchi, T. V. Moukhanova, P. W. Stankus, N. A. Sparks, S. Yokkaichi, S. H. Lim, R. Belmont, J. S. Kapustinsky, N. Grau, V. Babintsev, Y. Ikeda, T. Rinn, Motoi Inaba, C. Pinkenburg, K. Dehmelt, R. M. Wright, G. Roche, Y. J. Mao, J. H. Kang, J. S. Haggerty, Su Houng Lee, Y. S. Lai, K. Sakashita, D. Kotov, D. S. Jumper, Jason Kamin, V. S. Pantuev, S. P. Stoll, S. S.E. Rosendahl, J. Hamblen, G. Bunce, R. Kitamura, D. Jouan, X. Jiang, K. Okada, N. Kamihara, D. McGlinchey, N. Apadula, A. Meles, A. Drees, H. En'yo, M. J. Leitch, M. Chiu, C. A. Ogilvie, T. K. Hemmick, B. J. Ramson, J. M. Durham, Yasuo Miake, K. DeBlasio, L. Kochenda, M. Issah, R. Pinson, Hiroyuki Sako, M. Sarsour, Mate Csanad, A. Iordanova, R. Ichimiya, S. Y. Han, Y. J. Kwon, P. Montuenga, Martin Purschke, C. A. Aidala, Pawan Kumar Netrakanti, T. Kempel, Dong-Hun Kim, A. Morreale, Z. Fraenkel, V. Khachatryan, T. O. S. Haseler, H. Qu, P. B. Diss, R. K. Choudhury, Hideki Hamagaki, K. Aoki, G. David, K. I. Hahn, B. Azmoun, A. Král, N. Novitzky, R. P. Pisani, M. Oka, P. Kline, K. S. Lee, A. Dion, A. Enokizono, P. Liebing, C. M. Camacho, Prashant Shukla, S. F. Pate, H. Al-Bataineh, J. A. Key, Dmitry Blau, D. Ivanishchev, V. Papavassiliou, E. J. Desmond, M. Togawa, E. Vazquez-Zambrano, J. S. Park, J. Park, A. Rakotozafindrabe, Y. Tsuchimoto, I. E. Yushmanov, Eun-Hee Kim, R. Vértesi, Jason Newby, J. E. Frantz, and Sung Keun Park
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Nuclear Theory, Charged particle, Momentum, Nuclear physics, Pion, Charge radius, Transverse mass, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Impact parameter, Nuclear Experiment, Relativistic Heavy Ion Collider, Event (particle physics)
Abstract: We present a systematic study of charged-pion and kaon interferometry in Au + Au collisions at root s(NN) = 200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
Published: 2015

6. Centrality dependence of low-momentum direct-photon production inAu+Aucollisions atsNN=200 GeV

Author: A. G. Litvinenko, D. Kawall, K. N. Barish, S. Sano, A. Kozlov, R. Seto, M. L. Brooks, A. Deshpande, I. Danchev, X. He, Y. Aramaki, V. Peresedov, Robert Vertesi, J. Koster, Y. Fukao, H. Masui, A. A. Bickley, A. Veicht, M. Tomášek, T. Murakami, Maya Hachiya Shimomura, S. Dairaku, J. T. Mitchell, G. S. Kyle, M. Kurosawa, L. Guo, Alexei Khanzadeev, R. S. Hollis, Shinichi Masumoto, Jen-Chieh Peng, A. Sen, V. S. Pantuev, M. Sano, Y. I. Makdisi, R. A. Soltz, H. A. Gustafsson, T. Hester, M. Gonin, M. Grosse Perdekamp, S. Afanasiev, N. A. Sparks, K. S. Sim, Vladimir Samsonov, M. E. Connors, James Alexander, S. Baumgart, T. Todoroki, B. Lewis, C. Zhang, Tomoya Tsuji, M. Mendoza, S. N. White, A. Sukhanov, Y. Ikeda, S. Sawada, Masamichi Ishihara, R. Seidl, Vladislav Manko, M. Slunečka, A. Enokizono, D. Reynolds, K. Kurita, H. Pereira, Beomkyu Kim, O. Dietzsch, E. Stenlund, R. Averbeck, Byung-Sik Hong, Y. Tanaka, Hongfang Liu, P. Chung, Wei Xie, Minghui Liu, Y. Morino, R. Yang, P. Ružička, J. B. Choi, S. Belikov, E. Mannel, M. Virius, E. T. Atomssa, H. Valle, Dipak Kumar Mishra, A. Bazilevsky, D. E. Fields, K. Watanabe, J. Imrek, R. Akimoto, Dipanwita Dutta, Zvi Hirsh Citron, Inkyu Park, S. Taneja, M. J. Tannenbaum, M. Javani, B. V. Jacak, Peter Christiansen, A. Datta, C. O. Kim, K. Shoji, M. Heffner, C. Gal, H. Torii, K. Nakano, Xiong Wang, Tomofumi Nagae, Kenneth Francis Read, Julia Velkovska, K. B. Kim, R. Pak, H. Asano, J. L. Nagle, I. J. Choi, D. Winter, T. Ichihara, W. E. Sondheim, D. Ivanischev, J. Jin, K. Imai, P. Castera, P. W. Stankus, M. McCumber, C. H. Chen, M. Stepanov, E. Tennant, M. Rosati, Alexandre Lebedev, C. Pinkenburg, Viktor Riabov, C. Vale, D. Yu Peressounko, N. Grau, E. M. Takagui, Dong Jo Kim, Tamás Csörgő, N. Riveli, T. V. Moukhanova, P. Tarján, M. Leitgab, R. S. Towell, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, A. Manion, K. Boyle, P. A. Rukoyatkin, K. Okada, K. Karatsu, A. Garishvili, T. Sato, H. J. Moon, L. Baksay, Alice Mignerey, L. D'Orazio, S. Miyasaka, G. Roche, C. Silvestre, I. Ravinovich, I. Garishvili, F. Wei, Y. Hori, Anne Marie Sickles, Tadaaki Isobe, J. Hanks, A. Yu. Semenov, Y. Nakamiya, D. Lynch, Y. Tsuchimoto, K. Gainey, D. M. Lee, A. A. Vinogradov, Kyeongpil Lee, Marisilvia Donadelli, V. Bumazhnov, B. Meredith, Charles Maguire, Sung Keun Park, Takao Sakaguchi, G. Baksay, Motoi Inaba, X. Bing, O. Chvala, J. S. Bok, P. L. McGaughey, D. Kotchetkov, N. N. Ajitanand, H. En'yo, M. Bai, A. Dion, M. I. Nagy, A. D. Frawley, Jiangyong Jia, Y. Goto, S. Choi, J. Ide, R. M. Wright, Seong H. Kim, John Hill, M. J. Leitch, S. Huang, E. C. Aschenauer, J. P. Wood, M. Sarsour, Mate Csanad, A. Iordanova, R. Tanabe, Johannes Peter Wessels, B. Sahlmueller, J. G. Lajoie, Takahiro Nakamura, G. R. Young, W. Holzmann, Alexander Milov, Hiromi Iinuma, C. Y. Chi, Y. J. Kim, Toru Sugitate, T. Hachiya, J. E. Frantz, D. McGlinchey, D. Kleinjan, K. V. Dharmawardane, S. Whitaker, K. Kiriluk, I. Nakagawa, H. Qu, Senta Greene, R. Luechtenborg, Young-Ki Kim, T. Engelmore, N. Novitzky, S. Yokkaichi, Kiyoshi Tanida, M. Nihashi, F. Matathias, A. Kravitz, Y. Onuki, Susumu Oda, O. Drapier, C. Baumann, S. Kametani, A. T. Basye, Kensuke Homma, E. Richardson, K. B. Lee, Y. J. Mao, A. Durum, M. S. Daugherity, B. Komkov, Rushan Han, C. P. Singh, D. Watanabe, Frank Ellinghaus, Dmitry Blau, Y. Miyachi, Jan Rak, Zhiying You, Hideki Hamagaki, K. Aoki, C. Nattrass, M. Vargyas, Martin Purschke, C. A. Aidala, P. Constantin, B. M. Johnson, M. D. Malik, R. Lacey, B. Fadem, E. Vznuzdaev, E. R. Kinney, Y. Watanabe, François Fleuret, R. P. Pisani, D. P. Morrison, E. Kistenev, Filip Krizek, R. Bennett, M. Kawashima, J. H. Kang, Atsushi Takahara, J. S. Haggerty, S. R. Lee, R. Granier de Cassagnac, A. Adare, E. O'Brien, D. Hornback, G. David, K. I. Hahn, L. Ding, K. A. Drees, A. Ster, R. J. Petti, A. Isupov, B. Bassalleck, M. Konno, S. Campbell, B. H. Kang, Y. J. Kwon, D. Isenhower, E. J. Desmond, D. Roach, K. M. Kijima, Norio Saito, Tsutomu Mibe, S. Bathe, H. Al-Ta'Ani, M. Finger, Tatsuya Chujo, I. Tserruya, J. Klatsky, S. Wolin, J. Sziklai, A. Toia, Agneta Oskarsson, Yu. Efremenko, J. Ying, A. Franz, M. Togawa, Takahiro Fusayasu, I. Younus, Jongmin Lee, J. Newby, Brian Cole, V. Singh, N. Kamihara, M. A. L. Leite, E. Vazquez-Zambrano, A. Nederlof, Y. Berdnikov, S. H. Lee, Y. Akiba, Y. S. Lai, M. Ouchida, Alexander Malakhov, N. Means, C. McKinney, M. Mishra, J. Park, S. Nagamiya, K. Das, E. P. Hartouni, Byoungchoo Park, J. S. Kang, S. H. Lim, Vaclav Vrba, Klaus Johannes Reygers, J. Sun, Rui Wei, D. Silvermyr, M. Naglis, M. Kasai, H. Pei, A. Drees, A. Taketani, A. Glenn, L. S. Zolin, T. L. Thomas, R. Belmont, C. M. Camacho, W. J. Park, J. S. Kapustinsky, A. Kiss, Eunja Kim, Christopher Rosen, Prashant Shukla, T. Kempel, Dong-Hun Kim, V. Babintsev, Aaron Angerami, S. Kaneti, I. E. Yushmanov, Eun-Hee Kim, Ryugo S. Hayano, Henner Buesching, Steve Edwards, A. Yanovich, Y. Riabov, Kenta Shigaki, M. Chiu, S. F. Pate, X. Jiang, M. Nguyen, Taku Gunji, H. Gong, J. Seele, C. A. Ogilvie, M. Soumya, X. Gong, Ke. Nakamura, A. S. Nyanin, T. K. Hemmick, Marcus Hohlmann, J. M. Durham, Yasuo Miake, Rachid Nouicer, A. N. Zelenski, M. Proissl, F. Kajihara, W. A. Zajc, Torsten Dahms, H. Themann, L. Kochenda, M. Issah, L. A. Linden Levy, H. J. Kim, C. L. Woody, A. Berdnikov, J. Murata, H. Al-Bataineh, P. Rosnet, V. Baublis, A. Taranenko, K. O. Eyser, A. K. Purwar, K. Fujiwara, Gerd Joachim Kunde, I. Shein, A. Denisov, Yuki Watanabe, K. Sakashita, D. Kotov, Y. L. Yamaguchi, A. V. Kazantsev, K. Sedgwick, V. Cianciolo, Y. Komatsu, Kazushi Miki, Mihael Makek, D. S. Jumper, E. Leitner, S. Butsyk, J. Hamblen, T. Horaguchi, Jason Kamin, I. V. Sourikova, Brajesh K. Singh, Sergey Fokin, S. P. Stoll, L. Tomášek, P. Mikeš, Soren Pontoppidan Sorensen, S. Motschwiller, H. W. Van Hecke, A. Morreale, S. S.E. Rosendahl, Z. Fraenkel, R. K. Choudhury, K. S. Joo, A. Rakotozafindrabe, N. Apadula, A. Vossen, S. Esumi, D. Sharma, R. Ichimiya, G. Bunce, S. Zhou, S. Tarafdar, D. Ivanishchev, B. Azmoun, L. Patel, A. Král, D. Jouan, V. Papavassiliou, T. C. Awes, Kyoichiro Ozawa, T. Liška, Eva Haslum, B. Lenzi, M. Oka, P. Kline, K. S. Lee, P. Liebing, S. D. Rolnick, Bum-Hoon Lee, M. Wysocki, B. Bannier, K. Yamaura, K. Hashimoto, Xingguo Li, and B. Love
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Exponential distribution, Photon, 010308 nuclear & particles physics, Inverse, 01 natural sciences, Momentum, Nuclear physics, Yield (chemistry), 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Centrality, Scaling
Abstract: The PHENIX experiment at RHIC has measured the centrality dependence of the direct photon yield from Au+Au collisions at sNN−−−√=200 GeV down to pT=0.4 GeV/c. Photons are detected via photon conversions to e+e− pairs and an improved technique is applied that minimizes the systematic uncertainties that usually limit direct photon measurements, in particular at low pT. We find an excess of direct photons above the Ncoll-scaled yield measured in p+p collisions. This excess yield is well described by an exponential distribution with an inverse slope of about 240MeV/c in the pT range 0.6–2.0 GeV/c. While the shape of the pT distribution is independent of centrality within the experimental uncertainties, the yield increases rapidly with increasing centrality, scaling approximately with Nαpart, where α=1.38±0.03(stat)±0.07(syst).
Published: 2015

7. Azimuthal anisotropy ofπ0andηmesons in Au + Au collisions atsNN=200GeV

Author: B. Komkov, Norio Saito, M. A. L. Leite, R. Belmont, J. S. Kapustinsky, V. Babintsev, I. Tserruya, Yu. Efremenko, G. S. Kyle, James Alexander, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, C. M. Camacho, Philippe Rosnet, Alexandre Lebedev, D. M. Lee, S. Dairaku, K. Kiriluk, A. Yu. Semenov, E. H. Kim, Maya Hachiya Shimomura, R. A. Soltz, C. Silvestre, V. Singh, Prashant Shukla, K. B. Lee, S. F. Pate, B. Azmoun, A. Král, Y. I. Makdisi, S. Afanasiev, R. S. Towell, K. A. Drees, S. N. White, D. Kawall, M. Grosse Perdekamp, M. E. Connors, M. Virius, Marisilvia Donadelli, V. Bumazhnov, H. Al-Bataineh, J. Newby, M. J. Tannenbaum, H. Themann, I. Garishvili, F. Wei, M. Chiu, Sung Keun Park, M. Oka, N. N. Ajitanand, H. Torii, R. Tanabe, A. K. Purwar, K. Fujiwara, K. N. Barish, Eunja Kim, C. A. Ogilvie, Kisung Lee, T. K. Hemmick, Zvi Hirsh Citron, A. Dion, J. M. Durham, Yasuo Miake, V. S. Pantuev, Kyeongpil Lee, J. Ide, Alexei Khanzadeev, C. H. Chen, Takahiro Nakamura, K. Nakano, M. Ouchida, L. Kochenda, M. Issah, K. Tanida, J. P. Wood, K. Das, D. Roach, K. M. Kijima, S. Yokkaichi, W. E. Sondheim, D. Ivanischev, A. Enokizono, P. Liebing, N. Means, Alice Mignerey, D. Hornback, Susumu Oda, Alexander Milov, I. Nakagawa, R. Luechtenborg, Y. L. Yamaguchi, E. P. Hartouni, E. Stenlund, C. Y. Chi, A. Glenn, T. Engelmore, V. Papavassiliou, K. Boyle, I. Ravinovich, P. A. Rukoyatkin, Martin Purschke, C. A. Aidala, J. Hamblen, A. Durum, J. Murata, O. Drapier, Frank Ellinghaus, Peter Christiansen, K. Watanabe, T. Ichihara, D. Winter, D. Yu Peressounko, E. R. Kinney, Takao Sakaguchi, S. Sano, D. P. Morrison, K. Shoji, C. Baumann, S. Kametani, S. Campbell, A. Taranenko, P. Tarján, A. D. Frawley, K. Yamaura, R. Pak, Y. J. Mao, C. P. Singh, E. Leitner, Kazushi Miki, Takahiro Fusayasu, B. M. Johnson, M. Bai, S. Huang, Rushan Han, Tatsuya Chujo, N. Kamihara, A. Morreale, Xingguo Li, Brajesh K. Singh, Alexander Malakhov, T. Horaguchi, Jen-Chieh Peng, A. Isupov, J. H. Kang, J. S. Haggerty, C. L. Woody, A. Berdnikov, D. Silvermyr, P. W. Stankus, K. Okada, Hongfang Liu, D. E. Fields, W. Holzmann, Z. Fraenkel, B. V. Jacak, Vladimir Samsonov, J. Sziklai, Gerd Joachim Kunde, L. S. Zolin, T. V. Moukhanova, H. W. Van Hecke, A. Drees, Brian Cole, Inkyu Park, Xiong Wang, R. K. Choudhury, M. L. Brooks, W. J. Park, Christopher Rosen, H. En'yo, Senta Greene, P. Chung, K. S. Joo, M. Kurosawa, Dong Jo Kim, S. P. Sorensen, I. Shein, S. Tarafdar, M. J. Leitch, A. T. Basye, S. Sawada, M. McCumber, K. Sakashita, E. J. Desmond, A. Yanovich, J. Ying, A. Veicht, B. Love, M. Togawa, E. Vazquez-Zambrano, Tamas Ferenc Csorgo, A. Franz, Zhiying You, B. Fadem, E. O'Brien, O. Chvala, A. Kiss, J. Park, Eva Haslum, B. Lenzi, R. Bennett, M. Kawashima, A. Rakotozafindrabe, I. V. Sourikova, B. Meredith, Henner Buesching, J. L. Nagle, Steve Edwards, K. Sedgwick, Jason Kamin, Seong H. Kim, S. Esumi, D. Sharma, A. V. Kazantsev, M. Finger, Y. Tsuchimoto, S. P. Stoll, T. L. Thomas, Y. S. Lai, John Hill, Y. Ikeda, J. Jin, R. Ichimiya, A. Deshpande, A. Datta, Jongmin Lee, E. M. Takagui, J. G. Lajoie, J. Hanks, Y. J. Kwon, Ryugo S. Hayano, H. Qu, A. G. Litvinenko, I. E. Yushmanov, S. S.E. Rosendahl, G. Bunce, Toru Sugitate, L. Tomášek, R. Vértesi, P. Mikeš, Marcus Hohlmann, Y. Riabov, D. Lynch, Ajit Kumar Mohanty, Kenta Shigaki, Hideki Hamagaki, K. Aoki, D. Jouan, T. A. Shibata, T. Sato, C. Pinkenburg, M. Nguyen, François Fleuret, I. J. Choi, A. Kravitz, G. David, K. I. Hahn, A. Taketani, A. S. Nyanin, D. S. Jumper, A. Kozlov, J. E. Frantz, Y. Watanabe, M. Gonin, D. Kotchetkov, Rachid Nouicer, M. Proissl, T. Dahms, L. A. Linden Levy, R. Seto, T. C. Awes, Kyoichiro Ozawa, T. Liška, G. Roche, I. Younus, J. S. Bok, D. Isenhower, A. Toia, T. Kempel, I. Danchev, Taku Gunji, H. Gong, J. Seele, X. He, Dong-Hun Kim, M. Naglis, F. Kajihara, C. L. Silva, Y. Aramaki, V. Peresedov, A. Sukhanov, K. Kurita, H. Pereira, Masayasu Ishihara, S. Butsyk, S. Bathe, Agneta Oskarsson, S. Zhou, J. Koster, M. Wysocki, S. D. Rolnick, Y. Morino, H. Masui, A. A. Bickley, Minghui Liu, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, Rui Wei, M. Heffner, Kenneth Francis Read, Tadaaki Isobe, P. L. McGaughey, Y. Fukao, Y. Nakamiya, T. Hester, G. Baksay, B. Sahlmueller, Y. J. Kim, F. Matathias, Kensuke Homma, E. Richardson, P. Constantin, N. A. Sparks, B. Bassalleck, M. Konno, J. T. Mitchell, R. Seidl, Vladislav Manko, M. Slunečka, S. Belikov, N. Grau, C. Vale, M. I. Nagy, Motoi Inaba, R. M. Wright, Mate Csanad, D. Watanabe, R. P. Pisani, M. D. Malik, E. Vznuzdaev, Charles Maguire, Y. Onuki, E. Kistenev, H. Pei, Jan Rak, R. Lacey, Johannes Peter Wessels, R. Granier de Cassagnac, W. A. Zajc, A. Adare, V. Baublis, A. Denisov, V. Cianciolo, Sergey Fokin, Beomkyu Kim, H. A. Gustafsson, Wei Xie, Y. Tanaka, E. Mannel, K. Karatsu, C. Zhang, L. Baksay, P. Ružička, Anne Marie Sickles, Viktor Riabov, G. R. Young, K. S. Sim, R. Yang, K. Imai, M. Rosati, A. A. Vinogradov, Jiangyong Jia, Y. Goto, O. Dietzsch, E. T. Atomssa, H. Valle, Dipanwita Dutta, and Julia Velkovska
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Meson, 010308 nuclear & particles physics, Elliptic flow, 01 natural sciences, Nuclear physics, Azimuth, Viscosity, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Anisotropy
Abstract: The azimuthal anisotropy coefficients v2 and v4 of p 0 and. mesons are measured in Au + Au collisions at root s(NN) = 200 GeV as a function of transverse momentum p(T) (1-14 GeV/c) and centrality. The extracted v(2) coefficients are found to be consistent between the two meson species over the measured p(T) range. The ratio of v(4)/v(2)(2) for pi(0) mesons is found to be independent of p(T) for 1- 9 GeV/c, implying a lack of sensitivity of the ratio to the change of underlying physics with p(T). Furthermore, the ratio of v(4)/v(2)(2) is systematically larger in central collisions, which may reflect the combined effects of fluctuations in the initial collision geometry and finite viscosity in the evolving medium.
Published: 2013

8. Spectra and ratios of identified particles in Au+Au andd+Au collisions atsNN=200GeV

Author: N. Apadula, B. Azmoun, A. Král, M. Oka, P. Liebing, S. Esumi, D. Sharma, R. Ichimiya, P. Tarján, Y. J. Mao, Martin Purschke, C. A. Aidala, Y. Fukao, I. Tserruya, A. K. Purwar, K. Fujiwara, Charles Maguire, Maya Hachiya Shimomura, A. Morreale, D. Kawall, C. Silvestre, K. Karatsu, Z. Fraenkel, Gary Grim, Yu. Efremenko, R. K. Choudhury, Jongmin Lee, Y. L. Yamaguchi, K. V. Dharmawardane, Anne Marie Sickles, J. H. Kang, Y. I. Makdisi, V. Singh, H. Themann, J. S. Haggerty, T. Hester, V. S. Pantuev, D. Lynch, E. Leitner, A. Taketani, G. S. Kyle, James Alexander, Marisilvia Donadelli, V. Bumazhnov, O. Dietzsch, M. I. Nagy, D. Watanabe, M. D. Malik, E. Vznuzdaev, N. A. Sparks, R. S. Towell, I. Garishvili, F. Wei, K. N. Barish, S. Nam, D. S. Jumper, R. Tanabe, E. T. Atomssa, H. Valle, M. K. Dayananda, M. Wysocki, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, M. J. Tannenbaum, S. Sano, T. Sato, Dipanwita Dutta, A. Glenn, G. R. Young, H. W. Van Hecke, H. Torii, T. Dahms, E. Kistenev, P. Lichtenwalner, H. Qu, A. Kim, Hideki Hamagaki, K. Aoki, Y. S. Lai, R. Pak, N. Kamihara, N. Grau, J. Murata, Eunja Kim, Julia Velkovska, A. Yu. Semenov, S. Dairaku, S. Rembeczki, K. A. Drees, S. N. White, Deepa Thomas, Zvi Hirsh Citron, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, G. David, A. Kiss, Kyeongpil Lee, S. P. Sorensen, M. Rosati, R. Vértesi, Hongfang Liu, D. E. Fields, B. V. Jacak, Senta Greene, A. T. Basye, K. Nakano, J. Hamblen, Aaron Angerami, Tadaaki Isobe, J. P. Wood, Alexander Milov, I. Nakagawa, R. Luechtenborg, T. Engelmore, Beomkyu Kim, K. Boyle, J. Ide, Henner Buesching, Gerd Joachim Kunde, Wei Xie, M. Ouchida, N. Means, Steve Edwards, M. Virius, K. Okada, Rushan Han, Motoi Inaba, M. McCumber, W. A. Zajc, O. Drapier, Frank Ellinghaus, B. Fadem, E. O'Brien, I. Shein, R. M. Wright, Y. Tanaka, W. E. Sondheim, D. Ivanischev, Mate Csanad, C. M. Camacho, Prashant Shukla, S. F. Pate, Philippe Rosnet, Alice Mignerey, K. S. Sim, E. R. Kinney, D. P. Morrison, M. L. Brooks, K. Watanabe, V. Baublis, A. Denisov, L. D'Orazio, H. En'yo, E. Mannel, S. Yokkaichi, A. A. Vinogradov, Ke. Nakamura, S. Campbell, Vladimir Samsonov, V. Cianciolo, M. J. Leitch, P. A. Rukoyatkin, T. Ichihara, R. A. Soltz, C. H. Chen, C. Oakley, A. Drees, K. Shoji, H. Al-Bataineh, O. Chvala, J. Hanks, Alexandre Lebedev, Sergey Fokin, M. Nihashi, Marcus Hohlmann, B. Love, Takahiro Fusayasu, Tatsuya Chujo, Jiangyong Jia, Y. Goto, H. J. Moon, L. Baksay, T. Horaguchi, P. L. McGaughey, P. W. Stankus, T. L. Thomas, Y. Ikeda, D. Isenhower, Jen-Chieh Peng, Sung Keun Park, D. M. Lee, I. Ravinovich, K. Das, M. Grosse Perdekamp, Seong H. Kim, Alexander Malakhov, C. Y. Chi, A. Toia, N. N. Ajitanand, L. A. Linden Levy, K. Sakashita, Takao Sakaguchi, E. P. Hartouni, H. Pei, J. E. Frantz, Tamas Ferenc Csorgo, M. E. Connors, Y. J. Kwon, Ryugo S. Hayano, K. Sedgwick, M. Bai, R. P. Pisani, J. G. Lajoie, Inkyu Park, D. Kleinjan, J. L. Nagle, Xiong Wang, V. Papavassiliou, K. Kiriluk, Z. Conesa del Valle, H. A. Gustafsson, Takahiro Nakamura, A. D. Frawley, Y. Riabov, D. Silvermyr, Kenta Shigaki, Alexei Khanzadeev, Dong Jo Kim, C. Pinkenburg, S. Bathe, T. Murakami, D. McGlinchey, C. Baumann, A. G. Litvinenko, M. Nguyen, R. Yang, I. J. Choi, A. Kravitz, E. H. Kim, Agneta Oskarsson, C. Zhang, Susumu Oda, A. Deshpande, Jason Kamin, E. Stenlund, A. Dion, K. B. Lee, S. Kametani, L. S. Zolin, Taku Gunji, H. Gong, J. Seele, X. Jiang, A. Veicht, G. Roche, S. Huang, J. B. Choi, S. P. Stoll, A. S. Nyanin, W. J. Park, T. Kempel, F. Kajihara, P. Ružička, Y. Berdnikov, Y. Akiba, A. Durum, C. P. Singh, Zhiying You, K. Tanida, Rachid Nouicer, D. Kotchetkov, M. Proissl, Johannes Peter Wessels, R. Bennett, Christopher Rosen, A. V. Kazantsev, Dong-Hun Kim, S. Taneja, M. Mishra, W. Holzmann, M. Kawashima, S. Nagamiya, S. S.E. Rosendahl, T. Jones, Peter Christiansen, B. M. Johnson, G. Bunce, Viktor Riabov, K. Yamaura, M. Finger, A. Kozlov, D. Winter, R. Seto, A. Yanovich, C. L. Woody, A. Berdnikov, Vaclav Vrba, Klaus Johannes Reygers, D. Yu Peressounko, J. H. Bhom, R. J. Petti, K. Imai, S. Butsyk, Rui Wei, L. Tomášek, D. Jouan, A. Isupov, T. V. Moukhanova, D. Roach, P. Mikeš, S. Zhou, I. Danchev, S. Sawada, Dmitry Blau, Y. Onuki, X. He, K. M. Kijima, J. Sziklai, S. D. Rolnick, J. Ying, Jan Rak, A. Franz, M. Chiu, E. J. Desmond, B. Meredith, Y. Aramaki, V. Peresedov, R. Lacey, C. A. Ogilvie, M. Togawa, Kisung Lee, T. K. Hemmick, E. Vazquez-Zambrano, J. Park, T. C. Awes, R. Granier de Cassagnac, Kyoichiro Ozawa, T. Liška, J. M. Durham, Yasuo Miake, J. S. Bok, A. Rakotozafindrabe, Brian Cole, J. Koster, A. Adare, A. Caringi, Jun Kikuchi, M. Kurosawa, Y. Watanabe, M. Kasai, Y. Tsuchimoto, Y. Iwanaga, B. Komkov, John Hill, Xingguo Li, L. Kochenda, M. Issah, I. E. Yushmanov, H. Masui, Toru Sugitate, A. Enokizono, P. Chung, Norio Saito, I. Younus, Tsutomu Mibe, M. Gonin, Minghui Liu, A. A. Bickley, M. Heffner, Kenneth Francis Read, M. A. L. Leite, A. Datta, I. V. Sourikova, François Fleuret, A. Sukhanov, K. Kurita, H. Pereira, R. Belmont, J. S. Kapustinsky, V. Babintsev, Y. Morino, J. Jin, E. M. Takagui, M. Naglis, Masayasu Ishihara, F. Matathias, Kensuke Homma, E. Richardson, P. Constantin, K. I. Hahn, B. Bassalleck, M. Konno, Y. Nakamiya, G. Baksay, B. Sahlmueller, Y. J. Kim, J. T. Mitchell, R. Seidl, S. Tarafdar, Vladislav Manko, M. Slunečka, S. Belikov, Eva Haslum, B. Lenzi, C. Vale, S. Afanasiev, J. Newby, D. Hornback, A. Taranenko, Kazushi Miki, Brajesh K. Singh, and K. S. Joo
Subjects: Physics, Nuclear and High Energy Physics, Nuclear Theory, Hadron, Spectral line, Nuclear physics, Pion, Deuterium, Transverse momentum, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, Relativistic Heavy Ion Collider, Nucleon, Bar (unit)
Abstract: The transverse momentum (p(T)) spectra and ratios of identified charged hadrons (pi(+/-), K-+/-, p, (p) over bar) produced in root s(NN) = 200 GeV Au + Au and d + Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to p(T) = 6 GeV/c (5 GeV/c), and the measurements of kaons are reported up to p(T) = 4 GeV/c (3.5 GeV/c) in Au + Au (d + Au) collisions. In the intermediate p(T) region, between 2 and 5 GeV/c, a significant enhancement of baryon-to-meson ratios compared to those measured in p + p collisions is observed. This enhancement is present in both Au + Au and d + Au collisions and increases as the collisions become more central. We compare a class of peripheral Au + Au collisions with a class of central d + Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The p(T)-dependent particle ratios for these classes display a remarkable similarity, which is then discussed.
Published: 2013

9. 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

10. Deviation from quark number scaling of the anisotropy parameterv2of pions, kaons, and protons inAu+Aucollisions atsNN=200GeV

Author: J. P. Wood, Alexander Milov, I. Nakagawa, R. Luechtenborg, T. Engelmore, Beomkyu Kim, Wei Xie, O. Drapier, Frank Ellinghaus, E. R. Kinney, Jongmin Lee, D. P. Morrison, S. Campbell, Tatsuya Chujo, K. N. Barish, A. Taketani, D. S. Jumper, H. Pei, T. Dahms, H. A. Gustafsson, M. I. Nagy, P. Tarján, D. Watanabe, M. D. Malik, E. Vznuzdaev, S. Dairaku, S. N. White, C. Zhang, Jen-Chieh Peng, P. Ružička, A. Deshpande, S. Sano, Inkyu Park, Xiong Wang, Dong Jo Kim, M. Ouchida, Sung Keun Park, M. Virius, Viktor Riabov, N. Means, K. B. Lee, N. N. Ajitanand, S. V. Afanasiev, Charles Maguire, C. Silvestre, M. L. Brooks, X. He, C. H. Chen, A. Veicht, Maya Hachiya Shimomura, Johannes Peter Wessels, O. Dietzsch, Y. Aramaki, E. T. Atomssa, B. Azmoun, Y. J. Mao, A. Král, Takahiro Nakamura, Senta Greene, A. Glenn, I. Ravinovich, V. Peresedov, H. Valle, A. T. Basye, E. Kistenev, J. Koster, I. Tserruya, J. H. Kang, M. Wysocki, J. S. Haggerty, Masamichi Ishihara, Y. Watanabe, Susumu Oda, M. Bai, Dipanwita Dutta, D. Roach, W. A. Zajc, Alexei Khanzadeev, Yu. Efremenko, V. Singh, K. A. Drees, I. Younus, Y. J. Kwon, K. M. Kijima, C. L. Woody, H. Masui, A. A. Bickley, V. Baublis, A. Denisov, V. Cianciolo, A. Berdnikov, S. Tarafdar, Julia Velkovska, M. Rosati, Sergey Fokin, E. Stenlund, A. Durum, Y. I. Makdisi, Zhiying You, R. Bennett, Xingguo Li, B. Komkov, Eva Haslum, B. Lenzi, M. Kawashima, B. Fadem, E. O'Brien, M. Kurosawa, C. M. Camacho, Prashant Shukla, S. F. Pate, D. Kawall, B. Love, K. Yamaura, H. Themann, Minghui Liu, R. A. Soltz, M. Grosse Perdekamp, M. E. Connors, A. A. Vinogradov, Y. Tanaka, Norio Saito, E. Mannel, M. Finger, S. P. Sorensen, M. A. L. Leite, H. Al-Bataineh, Y. S. Lai, I. V. Sourikova, M. Heffner, Kenneth Francis Read, T. Ichihara, Jiangyong Jia, Y. Goto, O. Chvala, M. Oka, Hongfang Liu, M. J. Tannenbaum, T. L. Thomas, Seong H. Kim, Y. Ikeda, A. G. Litvinenko, D. E. Fields, J. Newby, B. V. Jacak, Eunja Kim, D. Kotchetkov, K. S. Lee, A. Dion, A. V. Kazantsev, J. G. Lajoie, K. Das, T. Kempel, Dong-Hun Kim, K. Tanida, V. Papavassiliou, Gerd Joachim Kunde, E. P. Hartouni, A. Kozlov, I. Shein, H. Torii, Ryugo S. Hayano, R. Belmont, R. Seto, J. S. Kapustinsky, L. Baksay, I. J. Choi, A. Kravitz, M. McCumber, Peter Christiansen, V. Babintsev, T. V. Moukhanova, A. Enokizono, M. Gonin, C. Pinkenburg, Y. Riabov, L. Tomášek, D. Hornback, V. S. Pantuev, P. Liebing, I. Danchev, D. Winter, G. S. Kyle, D. Yu Peressounko, P. Mikeš, Kenta Shigaki, K. S. Joo, Marisilvia Donadelli, V. Bumazhnov, James Alexander, K. Sedgwick, R. Tanabe, Rushan Han, G. Roche, J. Jin, A. Sukhanov, K. Kurita, H. Pereira, M. Nguyen, A. Taranenko, E. M. Takagui, E. J. Desmond, J. Hanks, R. Averbeck, Byung-Sik Hong, M. Togawa, J. Hamblen, E. Vazquez-Zambrano, A. Yu. Semenov, S. Sawada, A. Bazilevsky, A. S. Nyanin, Kazushi Miki, Y. Morino, Alice Mignerey, Rachid Nouicer, J. Ying, A. Franz, M. Proissl, Brajesh K. Singh, H. Qu, J. Park, Philippe Rosnet, A. Rakotozafindrabe, Alexandre Lebedev, T. C. Awes, C. Baumann, Kyoichiro Ozawa, T. Liška, J. S. Bok, Hideki Hamagaki, K. Aoki, G. David, Y. Tsuchimoto, S. Kametani, M. Naglis, C. L. Silva, K. Okada, R. Pak, S. Esumi, B. Sahlmueller, Takao Sakaguchi, Tadaaki Isobe, K. I. Hahn, D. M. Lee, D. Sharma, H. En'yo, R. Ichimiya, M. J. Leitch, I. E. Yushmanov, A. D. Frawley, M. Slunečka, P. L. McGaughey, K. Kiriluk, Eun-Hee Kim, C. P. Singh, R. Vértesi, Vladimir Samsonov, Martin Purschke, K. Watanabe, B. M. Johnson, S. Huang, S. Yokkaichi, K. Shoji, W. Holzmann, A. Isupov, T. Horaguchi, P. W. Stankus, J. Sziklai, A. Morreale, K. Karatsu, Z. Fraenkel, R. K. Choudhury, Brian Cole, R. S. Towell, J. E. Frantz, J. Murata, I. Garishvili, F. Wei, Kyeongpil Lee, J. Ide, Tamas Ferenc Csorgo, C. Y. Chi, J. L. Nagle, Anne Marie Sickles, G. R. Young, K. S. Sim, P. Chung, R. Yang, A. Datta, K. Imai, Taku Gunji, H. Gong, J. Seele, F. Kajihara, Y. Onuki, Jan Rak, R. Lacey, R. Granier de Cassagnac, A. Adare, S. Butsyk, S. Zhou, S. D. Rolnick, Ajit Kumar Mohanty, T. A. Shibata, T. Sato, D. Isenhower, A. Toia, F. Matathias, Kensuke Homma, E. Richardson, P. Constantin, B. Bassalleck, M. Konno, R. P. Pisani, J. T. Mitchell, Y. Fukao, R. Seidl, Vladislav Manko, T. Hester, S. Belikov, N. A. Sparks, N. Grau, C. Vale, Christine Angela Aidala, Y. Nakamiya, D. Lynch, Motoi Inaba, R. M. Wright, G. Baksay, Y. J. Kim, A. Kiss, Henner Buesching, Steve Edwards, Marcus Hohlmann, L. A. Linden Levy, K. Sakashita, A. K. Purwar, K. Fujiwara, Y. L. Yamaguchi, E. Leitner, H. W. Van Hecke, S. Bathe, Agneta Oskarsson, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, Rui Wei, Jason Kamin, M. Csanad, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, D. Jouan, N. Kamihara, A. Drees, M. Chiu, C. A. Ogilvie, T. K. Hemmick, J. M. Durham, Yasuo Miake, L. Kochenda, M. Issah, Zvi Hirsh Citron, K. Nakano, W. E. Sondheim, D. Ivanischev, K. Boyle, P. A. Rukoyatkin, Takahiro Fusayasu, Alexander Malakhov, D. Silvermyr, L. S. Zolin, W. J. Park, Christopher Rosen, A. Yanovich, B. Meredith, John Hill, Toru Sugitate, and François Fleuret
Subjects: Quark, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Kinetic energy, 01 natural sciences, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, Impact parameter, Nuclear Experiment, 010306 general physics, Anisotropy, Relativistic Heavy Ion Collider, Scaling
Abstract: Measurements of the anisotropy parameter v(2) of identified hadrons (pions, kaons, and protons) as a function of centrality, transverse momentum p(T), and transverse kinetic energy KET at midrapidity (vertical bar eta vertical bar < 0.35) in Au + Au collisions at root s(N N) = 200 GeV are presented. Pions and protons are identified up to p(T) = 6 GeV/c, and kaons up to p(T) = 4 GeV/c, by combining information from time-of-flight and aerogel Cerenkov detectors in the PHENIX Experiment. The scaling of v(2) with the number of valence quarks (n(q)) has been studied in different centrality bins as a function of transverse momentum and transverse kinetic energy. A deviation from previously observed quark-number scaling is observed at large values of KET/n(q) in noncentral Au + Au collisions (20-60%), but this scaling remains valid in central collisions (0-10%).
Published: 2012

11. 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

12. J/ψsuppression at forward rapidity in Au+Au collisions atsNN=200GeV

Author: K. Sakashita, Sung Keun Park, K. S. Joo, N. N. Ajitanand, K. A. Drees, Takahiro Nakamura, Y. J. Kwon, Jason Kamin, Susumu Oda, R. A. Soltz, M. Grosse Perdekamp, M. E. Connors, S. Belikov, S. Esumi, K. Tanida, Peter Christiansen, P. Tarján, D. Winter, S. P. Stoll, D. Roach, K. M. Kijima, A. Durum, Vladimir Samsonov, D. Kotchetkov, Y. Fukao, D. Sharma, Minghui Liu, R. Ichimiya, S. S.E. Rosendahl, G. Bunce, T. Hester, B. Azmoun, A. Král, Y. J. Mao, M. Heffner, E. H. Kim, K. Das, E. P. Hartouni, K. Yamaura, Kenneth Francis Read, D. Jouan, Tamas Ferenc Csorgo, V. S. Pantuev, Senta Greene, A. T. Basye, B. Fadem, E. O'Brien, M. Oka, J. H. Kang, J. S. Haggerty, Xingguo Li, N. A. Sparks, J. L. Nagle, J. Hamblen, Johannes Peter Wessels, M. Gonin, R. Pak, A. Dion, Hongfang Liu, D. E. Fields, N. Kamihara, K. Okada, B. Sahlmueller, H. En'yo, C. Silvestre, Marisilvia Donadelli, V. Bumazhnov, M. J. Leitch, B. V. Jacak, W. A. Zajc, H. Hamagaki, A. Sukhanov, H. Pereira, A. V. Kazantsev, M. Kurosawa, Andry Malala Rakotozafindrabe, M. I. Nagy, Kazuyoshi Kurita, N. Grau, M. McCumber, Y. Morino, V. Baublis, Atsushi Taketani, G. S. Kyle, D. Watanabe, A. Denisov, M. D. Malik, R. Tanabe, E. Vznuzdaev, A. Drees, A. Enokizono, P. Liebing, James Alexander, J. Hanks, R. Averbeck, Byung-Sik Hong, M. Wysocki, A. Bazilevsky, Motoi Inaba, R. M. Wright, Martin Purschke, Sergey Fokin, P. Chung, Rushan Han, L. Tomášek, S. P. Sorensen, Philippe Rosnet, Beomkyu Kim, K. Boyle, Y. Tanaka, H. Å Gustafsson, Wei Xie, M. Chiu, Alexandre Lebedev, C. A. Ogilvie, Shinhong Kim, O. Chvala, Mate Csanad, Kisung Lee, T. K. Hemmick, D. M. Lee, A. Morreale, J. M. Durham, Yasuo Miake, Y. S. Lai, K. Kiriluk, A. Datta, E. J. Desmond, J. G. Lajoie, B. Komkov, P. Mikeš, L. Kochenda, M. Issah, R. K. Choudhury, A. K. Purwar, K. Fujiwara, Taku Gunji, H. Gong, J. Seele, I. J. Choi, Norio Saito, A. Kravitz, L. Baksay, M. A. L. Leite, F. Kajihara, S. Sawada, H. Pei, J. Ying, A. Franz, M. Togawa, E. Vazquez-Zambrano, Y. L. Yamaguchi, R. Belmont, J. S. Kapustinsky, V. Babintsev, O. Dietzsch, R. P. Pisani, S. Butsyk, Maya Hachiya Shimomura, J. Park, C. M. Camacho, Prashant Shukla, C. Zhang, E. T. Atomssa, S. Zhou, H. Valle, S. F. Pate, T. C. Awes, Kyoichiro Ozawa, T. Liška, S. D. Rolnick, J. S. Bok, P. Ružička, Dipanwita Dutta, E. Leitner, H. Al-Bataineh, Tadaaki Isobe, Julia Velkovska, A. Y. Semenov, M. Rosati, Ajit Kumar Mohanty, T. A. Shibata, Y. Tsuchimoto, Y. I. Makdisi, Viktor Riabov, T. Sato, S. Yokkaichi, V. Papavassiliou, A. A. Vinogradov, I. E. Yushmanov, Jiangyong Jia, Alexei Khanzadeev, P. L. McGaughey, Y. Goto, E. Stenlund, D. Isenhower, H. Qu, Y. Ikeda, E. J. Mannel, H. W. Van Hecke, A. Toia, C. Pinkenburg, T. V. Moukhanova, S. Bathe, K. Aoki, R. Vértesi, Agneta Oskarsson, G. Roche, G. David, Y. Berdnikov, Y. Akiba, M. Mishra, J. E. Frantz, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, Rui Wei, M. Naglis, Charles Maguire, A. Kiss, C. L. Silva, Henner Buesching, Steve Edwards, Masayasu Ishihara, Marcus Hohlmann, C. Baumann, S. Kametani, L. A. Linden Levy, A. Deshpande, C. P. Singh, B. M. Johnson, A. Isupov, J. Sziklai, M. J. Tannenbaum, Brian Cole, E. Kistenev, H. Torii, T. Kempel, Dong-Hun Kim, J. Jin, E. M. Takagui, R. S. Towell, I. Garishvili, F. Wei, Kyeongpil Lee, J. T. Mitchell, J. Ide, R. Seidl, Vladislav Manko, M. Slunečka, C. Y. Chi, Y. Watanabe, K. Watanabe, Alice Mignerey, K. Shoji, S. Dairaku, V. Cianciolo, M. Virius, C. H. Chen, T. Horaguchi, I. Younus, P. W. Stankus, A. Glenn, I. Ravinovich, M. Bai, Takao Sakaguchi, D. Kawall, C. Vale, A. D. Frawley, Zhiying You, H. Themann, S. Huang, R. Bennett, M. Kawashima, M. Finger, Christine Angela Aidala, W. Holzmann, M. Ouchida, N. Means, Jongmin Lee, J. Murata, Y. Nakamiya, X. He, Y. Aramaki, V. Peresedov, D. Lynch, T. L. Thomas, J. Koster, Gerd Joachim Kunde, I. Shein, D. S. Jumper, G. Baksay, H. Masui, Ryugo S. Hayano, A. A. Bickley, Y. Riabov, T. Dahms, Kenta Shigaki, K. Sedgwick, M. Nguyen, K. N. Barish, A. S. Nyanin, Rachid Nouicer, M. Proissl, Y. J. Kim, T. Ichihara, J. P. Wood, C. L. Woody, A. Berdnikov, Alexander Milov, Takahiro Fusayasu, S. Sano, I. Nakagawa, Alexander Malakhov, R. Luechtenborg, T. Engelmore, K. Karatsu, D. Silvermyr, O. Drapier, L. S. Zolin, W. J. Park, Christopher Rosen, Frank Ellinghaus, A. Yanovich, E. R. Kinney, S. N. White, D. P. Morrison, S. Campbell, Anne Marie Sickles, Zvi Hirsh Citron, Tatsuya Chujo, I. Tserruya, Yu. Efremenko, K. Nakano, F. Matathias, V. Singh, I. V. Sourikova, M. L. Brooks, W. E. Sondheim, D. Ivanischev, Kensuke Homma, B. Love, P. A. Rukoyatkin, G. R. Young, B. Meredith, Z. Fraenkel, E. Richardson, John Hill, Toru Sugitate, Eunja Kim, Jen-Chieh Peng, K. S. Sim, P. Constantin, A. G. Litvinenko, Inkyu Park, Xiong Wang, K. I. Hahn, Dong Jo Kim, B. Bassalleck, R. Yang, A. Veicht, François Fleuret, A. Kozlov, M. Konno, K. Imai, R. Seto, Y. Onuki, D. Y.-U. Peressounko, Jan Rak, R. Lacey, R. Granier de Cassagnac, A. Adare, I. Danchev, S. Tarafdar, Eva Haslum, B. Lenzi, S. Afanasiev, J. Newby, D. Hornback, A. Taranenko, Kazushi Miki, Brajesh K. Singh, and K. B. Lee
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Quark–gluon plasma, Binary number, Parton, Rapidity, Charm (quantum number), Nuclear Experiment, Breakup, Nuclear matter, Gluon
Abstract: Heavy quarkonia are observed to be suppressed in relativistic heavy-ion collisions relative to their production in p + p collisions scaled by the number of binary collisions. In order to determine if this suppression is related to color screening of these states in the produced medium, one needs to account for other nuclear modifications including those in cold nuclear matter. In this paper, we present new measurements from the PHENIX 2007 data set of J/psi yields at forward rapidity (1.2 < vertical bar y vertical bar < 2.2) in Au + Au collisions at root s(NN) = 200 GeV. The data confirm the earlier finding that the suppression of J/. at forward rapidity is stronger than at midrapidity, while also extending the measurement to finer bins in collision centrality and higher transverse momentum (p(T)). We compare the experimental data to the most recent theoretical calculations that incorporate a variety of physics mechanisms including gluon saturation, gluon shadowing, initial-state parton energy loss, cold nuclear matter breakup, color screening, and charm recombination. We find J/psi suppression beyond cold-nuclear-matter effects. However, the current level of disagreement between models and d + Au data precludes using these models to quantify the hot-nuclear-matter suppression.
Published: 2011

13. Suppression of away-side jet fragments with respect to the reaction plane in Au + Au collisions atsNN=200GeV

Author: K. Karatsu, P. Tarján, Anne Marie Sickles, Y. Fukao, T. Kempel, Dong-Hun Kim, G. R. Young, S. Sawada, Senta Greene, J. Ying, A. Franz, T. Hester, A. T. Basye, B. Azmoun, A. Král, M. J. Kweon, B. Fadem, E. O'Brien, N. A. Sparks, R. S. Towell, S. P. Sorensen, Jen-Chieh Peng, I. Garishvili, V-N. Tram, N. Grau, F. Wei, O. Chvala, Marisilvia Donadelli, V. Bumazhnov, M. Oka, M. I. Nagy, D. Watanabe, Charles Maguire, A. Dion, Andry Malala Rakotozafindrabe, Seong H. Kim, J. G. Lajoie, S. Dairaku, Atsushi Taketani, A. Enokizono, P. Liebing, Kyeongpil Lee, J. Ide, Motoi Inaba, R. M. Wright, M. D. Malik, E. Vznuzdaev, B. Meredith, R. Tanabe, D. Layton, R. A. Soltz, H. Borel, Kiyoshi Tanida, I. J. Choi, A. Kravitz, Hongfang Liu, Inkyu Park, D. E. Fields, M. Grosse Perdekamp, B. V. Jacak, Xiong Wang, M. Gonin, E. Kistenev, M. E. Connors, Dong Jo Kim, C. Y. Chi, C. M. Camacho, Prashant Shukla, John Hill, S. F. Pate, H. Al-Bataineh, M. McCumber, V. Papavassiliou, E. H. Kim, M. Rosati, X. He, K. S. Joo, Toru Sugitate, K. S. Sim, V. Dzhordzhadze, A. Sukhanov, W. C. Chang, K. A. Drees, M. Wysocki, O. Zaudtke, Y. Kwon, H. Pei, Maya Hachiya Shimomura, A. Veicht, K. Sakashita, H. Pereira, Y. Morino, A. Hadj Henni, J. Hanks, R. Yang, H. Qu, Peter Christiansen, Y. Ikeda, Y. Aramaki, D. Winter, D. Yu Peressounko, Mate Csanad, Y. I. Makdisi, I. Tserruya, Beomkyu Kim, K. Boyle, Yu. Efremenko, Wei Xie, Sung Keun Park, Rushan Han, K. Imai, V. Peresedov, V. Singh, Hideki Hamagaki, K. Aoki, J. G. Boissevain, E. J. Mannel, G. David, S. Esumi, D. Sharma, Minghui Liu, N. N. Ajitanand, R. Ichimiya, François Fleuret, J. Koster, Tae-Yeon Lee, Martin Purschke, M. Virius, Takahiro Nakamura, M. Naglis, Y. Onuki, David D'Enterria, K. Watanabe, L. Aphecetche, M. J. Tannenbaum, M. Heffner, K. B. Lee, Vladimir Samsonov, S. Batsouli, K. Shoji, Jan Rak, Jason Kamin, R. Lacey, T. Ichihara, H. Torii, R. P. Pisani, R. Granier de Cassagnac, A. Adare, Susumu Oda, H. Masui, A. K. Dubey, J. Jin, C. L. Silva, Kenneth Francis Read, A. A. Bickley, P. W. Stankus, E. M. Takagui, A. Durum, A. A. Vinogradov, D. Mukhopadhyay, S. Rembeczki, A. Morreale, Johannes Peter Wessels, S. P. Stoll, Takahiro Fusayasu, Z. Fraenkel, J. L. Charvet, C. Pinkenburg, B. Love, Catherine Micaela Silvestre, C. H. Chen, Eunja Kim, C. Baumann, S. Kametani, K. Yamaura, D. Roach, J. P. Wood, K. M. Kijima, R. K. Choudhury, Y. Tanaka, Jiangyong Jia, Y. Goto, Alexander Malakhov, K. Das, C. P. Singh, Alice Mignerey, B. M. Johnson, A. Glenn, A. G. Litvinenko, E. P. Hartouni, D. Silvermyr, S. S.E. Rosendahl, G. Bunce, Tamas Ferenc Csorgo, Masayasu Ishihara, I. Ravinovich, Alexander Milov, I. Nakagawa, R. Luechtenborg, Xingguo Li, L. Baksay, A. Isupov, C. Suire, M. Kurosawa, Takao Sakaguchi, M. Stepanov, G. Roche, L. S. Zolin, C. Klein-Boesing, Y. J. Mao, J. L. Nagle, W. J. Park, Christopher Rosen, A. Kozlov, J. Sziklai, A. D. Frawley, R. Seto, Tadaaki Isobe, K. Haruna, M. Bai, A. Churyn, T. Engelmore, S. Huang, P. D. Barnes, Brian Cole, A. Yanovich, O. Drapier, Frank Ellinghaus, I. Danchev, W. Holzmann, J. H. Kang, S. Tarafdar, S. N. White, O. Dietzsch, J. S. Haggerty, D. Jouan, Zhiying You, R. Bennett, E. T. Atomssa, H. Valle, M. Kawashima, Dipanwita Dutta, E. R. Kinney, K. N. Barish, Julia Velkovska, M. Finger, D. P. Morrison, S. Campbell, P. Chung, Zvi Hirsh Citron, K. Nakano, W. E. Sondheim, D. Ivanischev, Jongmin Lee, P. A. Rukoyatkin, D. Lynch, F. Staley, J. Imrek, D. S. Jumper, V. L. Rykov, T. Dahms, V. E. Semenov, Y. S. Lai, S. Sano, B. Komkov, C. A. Ogilvie, Tatsuya Chujo, D. Kawall, Kisung Lee, T. K. Hemmick, A. Datta, H. Themann, J. M. Durham, M. L. Brooks, Yasuo Miake, Taku Gunji, H. Gong, J. Seele, P. L. McGaughey, Norio Saito, Eva Haslum, B. Lenzi, F. Kajihara, L. Kochenda, M. Issah, J. Murata, M. A. L. Leite, S. Afanasiev, A. Ster, S. Butsyk, M. Chiu, Gerd Joachim Kunde, I. Shein, J. Newby, R. Pak, S. Zhou, A. Baldisseri, S. D. Rolnick, N. Kamihara, K. Sedgwick, D. Hornback, A. Deshpande, Kazuyoshi Kurita, A. V. Kazantsev, A. Drees, Ajit Kumar Mohanty, A. Taranenko, T. A. Shibata, Kazushi Miki, T. Horaguchi, T. Sato, Brajesh K. Singh, Y. Watanabe, I. Younus, L. Tomášek, A. Soldatov, P. Mikeš, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, Jun Kikuchi, D. Isenhower, A. Toia, L. Mašek, H. Iinuma, T. Niita, A. P.T. Palounek, W. A. Zajc, V. Baublis, A. Denisov, V. Cianciolo, Y. Tomita, Sergey Fokin, H. A. Gustafsson, C. Zhang, P. Ružička, Viktor Riabov, C. L. Woody, A. Berdnikov, I. V. Sourikova, E. J. Desmond, M. Togawa, E. Vazquez-Zambrano, J. Park, Y. Tsuchimoto, M. Ouchida, N. Means, J. Asai, I. E. Yushmanov, Alexei Khanzadeev, Shingo Sakai, E. Stenlund, T. L. Thomas, Y. Nakamiya, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, M. Nguyen, A. S. Nyanin, Rachid Nouicer, M. Proissl, G. Baksay, T. V. Moukhanova, R. Vértesi, J. E. Frantz, Y. J. Kim, F. Matathias, Kensuke Homma, E. Richardson, P. Constantin, S. Chernichenko, K. I. Hahn, K. O. Eyser, A. K. Purwar, K. Fujiwara, B. Bassalleck, M. Konno, Y. L. Yamaguchi, J. T. Mitchell, E. Leitner, R. Seidl, Vladislav Manko, M. Slunečka, A. Yu. Semenov, J. Gosset, S. Belikov, C. Vale, B. S. Chang, Christine Angela Aidala, J. Klay, S. Yokkaichi, H. W. Van Hecke, R. Belmont, J. S. Kapustinsky, V. Babintsev, G. S. Kyle, James Alexander, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, D. Kotchetkov, Philippe Rosnet, V. S. Pantuev, Alexandre Lebedev, J. Hamblen, D. M. Lee, S. Bathe, K. Okada, B. Sahlmueller, H. En'yo, Agneta Oskarsson, M. J. Leitch, K. Kiriluk, Y. Berdnikov, Y. Akiba, M. Mishra, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, Rui Wei, A. Kiss, Henner Buesching, Steve Edwards, Marcus Hohlmann, and L. A. Linden Levy
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, Jet (fluid), Meson, 010308 nuclear & particles physics, Hadron, Parton, Elementary particle, 01 natural sciences, Nuclear physics, Momentum, Pion, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract: Pair correlations between large transverse momentum neutral pion triggers (p(T) = 4-7 GeV/c) and charged hadron partners (p(T) = 3-7 GeV/c) in central (0%-20%) and midcentral (20%-60%) Au + Au collisions at root s(NN) = 200 GeV are presented as a function of trigger orientation with respect to the reaction plane. The particles are at larger momentum than where jet shape modifications have been observed, and the correlations are sensitive to the energy loss of partons traveling through hot densematter. An out-of-plane trigger particle produces only 26 +/- 20% of the away-side pairs that are observed opposite of an in-plane trigger particle for midcentral (20%-60%) collisions. In contrast, near-side jet fragments are consistent with no suppression or dependence on trigger orientation with respect to the reaction plane. These observations are qualitatively consistent with a picture of little near-side parton energy loss either due to surface bias or fluctuations and increased away-side parton energy loss due to a long path through the medium. The away-side suppression as a function of reaction-plane angle is shown to be sensitive to both the energy loss mechanism and the space-time evolution of heavy-ion collisions.
Published: 2011

14. 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

15. 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

16. Transverse momentum dependence ofηmeson suppression in Au+Au collisions atsNN=200GeV

Author: J. H. Kang, Vladimir Samsonov, J. S. Haggerty, S. Afanasiev, A. Ster, S. Sano, J. Newby, Tamas Ferenc Csorgo, M. Gonin, T. L. Thomas, J. L. Nagle, Marisilvia Donadelli, V. Bumazhnov, Andry Malala Rakotozafindrabe, R. Tanabe, D. Layton, W. C. Chang, Rushan Han, R. A. Soltz, H. Borel, D. Hornback, S. Dairaku, Ryugo S. Hayano, A. Deshpande, O. Dietzsch, M. Proissl, Y. Riabov, A. Sukhanov, K. Shoji, Y. S. Lai, M. Heffner, A. Taranenko, E. T. Atomssa, H. Valle, Kenta Shigaki, B. Komkov, K. N. Barish, H. Pereira, Y. Morino, O. Zaudtke, B. Meredith, K. S. Joo, Y. Nakamiya, M. Nguyen, Dipanwita Dutta, P. W. Stankus, M. Grosse Perdekamp, Y. Watanabe, S. Belikov, Kazushi Miki, T. Horaguchi, Z. Fraenkel, Norio Saito, M. A. L. Leite, A. Yu. Semenov, Hongfang Liu, R. Vértesi, Julia Velkovska, M. I. Nagy, J. Gosset, D. Watanabe, G. Baksay, A. S. Nyanin, Maya Hachiya Shimomura, M. Virius, M. E. Connors, B. V. Jacak, M. L. Brooks, Minghui Liu, Brajesh K. Singh, Y. Fukao, K. Karatsu, John Hill, I. Younus, Y. I. Makdisi, B. Love, Rachid Nouicer, M. D. Malik, E. Vznuzdaev, R. S. Towell, D. E. Fields, Y. J. Kim, J. T. Mitchell, M. Rosati, A. G. Litvinenko, Anne Marie Sickles, D. Kotchetkov, S. P. Sorensen, C. A. Ogilvie, M. McCumber, D. Sharma, R. Ichimiya, K. O. Eyser, A. K. Purwar, K. Fujiwara, Tae-Yeon Lee, R. Seidl, T. K. Hemmick, A. Kozlov, R. Seto, K. Haruna, Kenneth Francis Read, A. Soldatov, T. Hester, L. Tomášek, R. Belmont, J. S. Kapustinsky, V. Babintsev, C. Zhang, A. A. Vinogradov, A. V. Kazantsev, Yasuo Miake, Y. Tanaka, C. A. Rosen, I. Garishvili, F. Wei, N. A. Sparks, E. H. Kim, Martin Purschke, Kyeongpil Lee, Vladislav Manko, H. Qu, Jen-Chieh Peng, C. H. Chen, M. Slunečka, Toru Sugitate, G. R. Young, S. Tarafdar, I. Danchev, Hideki Hamagaki, K. Aoki, V. S. Pantuev, L. Aphecetche, A. Glenn, M. J. Tannenbaum, S. Yokkaichi, X. He, K. A. Drees, O. Chvala, Seong H. Kim, J. Ide, C. Y. Chi, Inkyu Park, J. Hanks, Xiong Wang, Peter Christiansen, Jiangyong Jia, Y. Goto, D. Winter, L. Kochenda, Y. Onuki, S. Hegyi, G. David, J. E. Frantz, M. Ouchida, N. Means, D. Yu Peressounko, E. Leitner, Y. Ikeda, J. G. Boissevain, E. J. Mannel, Jan Rak, K. Watanabe, J. Asai, Dong Jo Kim, P. Ružička, H. Torii, M. Naglis, C. L. Silva, R. Lacey, Sung Keun Park, J. G. Lajoie, Yorito Yamaguchi, C. Vale, B. S. Chang, Christine Angela Aidala, J. Klay, P. Mikeš, Y. Aramaki, V. Peresedov, Eva Haslum, B. Lenzi, R. Pak, P. Tarján, R. Granier de Cassagnac, A. Adare, D. Mukhopadhyay, A. Morreale, Johannes Peter Wessels, S. Rembeczki, Jongmin Lee, C. Pinkenburg, L. Baksay, N. N. Ajitanand, Viktor Riabov, V-N. Tram, N. Grau, N. Kamihara, S. Sawada, J. Ying, A. Franz, M. Issah, J. Koster, S. Batsouli, H. Masui, A. K. Dubey, F. Matathias, Shingo Sakai, I. J. Choi, A. Kravitz, A. Veicht, E. J. Desmond, K. Tanida, Eun Joo Kim, M. Stepanov, G. Roche, Masayasu Ishihara, H. Pei, D. Lynch, Kensuke Homma, Kazuyoshi Kurita, E. Richardson, H. W. Van Hecke, A. A. Bickley, K. Okada, R. K. Choudhury, A. Hadj Henni, B. Sahlmueller, I. Tserruya, B. Azmoun, Yu. Efremenko, A. Král, M. J. Kweon, Takahiro Nakamura, A. Drees, K. B. Lee, P. Constantin, S. Chernichenko, J. Jin, E. M. Takagui, G. S. Kyle, C. L. Woody, A. Berdnikov, T. Kempel, Dong-Hun Kim, V. Singh, H. En'yo, S. Esumi, M. Togawa, M. J. Leitch, K. I. Hahn, K. S. Sim, C. Baumann, S. Kametani, E. Vazquez-Zambrano, F. Staley, D. Kawall, Motoi Inaba, Beomkyu Kim, K. Boyle, James Alexander, J. Park, B. Bassalleck, D. S. Jumper, Alice Mignerey, C. P. Singh, K. Sakashita, K. S. Lee, C. M. Camacho, V. Dzhordzhadze, H. Å Gustafsson, Wei Xie, Prashant Shukla, R. M. Wright, Y. Kwon, B. M. Johnson, K. Das, H. Themann, Susumu Oda, Mate Csanad, M. Konno, A. Kiss, V. L. Rykov, T. Dahms, R. Yang, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, E. P. Hartouni, S. F. Pate, A. Durum, A. Isupov, C. Suire, Henner Buesching, Senta Greene, Jason Kamin, K. Imai, J. Sziklai, W. A. Zajc, François Fleuret, Philippe Rosnet, J. Murata, M. Oka, A. T. Basye, Brian Cole, Steve Edwards, I. Ravinovich, Takao Sakaguchi, Catherine Micaela Silvestre, S. P. Stoll, I. V. Sourikova, T. C. Awes, H. Al-Bataineh, Gerd Joachim Kunde, Alexandre Lebedev, V. Baublis, A. Denisov, Y. Tsuchimoto, Kyoichiro Ozawa, T. Liška, K. Yamaura, Charles Maguire, J. S. Bok, V. Cianciolo, C. Klein-Boesing, B. Fadem, A. Dion, David D'Enterria, S. S.E. Rosendahl, G. Bunce, I. Shein, Y. Tomita, E. O'Brien, J. P. Wood, M. Bai, Sergey Fokin, Marcus Hohlmann, A. D. Frawley, Jun Kikuchi, D. M. Lee, A. Churyn, K. Sedgwick, Alexander Milov, Atsushi Taketani, D. Jouan, A. Enokizono, P. Liebing, I. Nakagawa, R. Luechtenborg, T. Engelmore, R. P. Pisani, E. Kistenev, V. Papavassiliou, S. N. White, O. Drapier, Tadaaki Isobe, L. A. Linden Levy, Frank Ellinghaus, S. Huang, K. Kiriluk, E. R. Kinney, D. P. Morrison, S. Bathe, S. Campbell, I. E. Yushmanov, W. Holzmann, Agneta Oskarsson, V. E. Semenov, D. Roach, Zvi Hirsh Citron, K. M. Kijima, Tatsuya Chujo, Y. Berdnikov, Zhiying You, Y. Akiba, R. Bennett, K. Nakano, M. Mishra, S. Nagamiya, M. Kawashima, W. E. Sondheim, Vaclav Vrba, Klaus Johannes Reygers, Alexei Khanzadeev, P. L. McGaughey, Rui Wei, D. Ivanischev, M. Finger, H. Iinuma, M. Wysocki, A. P.T. Palounek, Xingguo Li, P. A. Rukoyatkin, T. Ichihara, M. Chiu, Takahiro Fusayasu, E. Stenlund, Alexander Malakhov, D. Silvermyr, L. S. Zolin, W. J. Park, P. D. Barnes, A. Yanovich, J. Hamblen, J. M. Durham, T. V. Moukhanova, Taku Gunji, H. Gong, J. Seele, F. Kajihara, S. Butsyk, S. Zhou, A. Baldisseri, S. D. Rolnick, Ajit Kumar Mohanty, T. A. Shibata, T. Sato, D. Isenhower, A. Toia, L. Mašek, T. Niita, J. L. Charvet, M. Kurosawa, P. Chung, J. Imrek, A. Datta, and Y. J. Mao
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Meson, 010308 nuclear & particles physics, Hadron, Elementary particle, 01 natural sciences, 7. Clean energy, Standard deviation, Nuclear physics, Pion, 0103 physical sciences, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Boson
Abstract: New measurements by the PHENIX experiment at the Relativistic Heavy Ion Collider for. production at midrapidity as a function of transverse momentum ((PT)) and collision centrality in root s(NN) = 200 GeV Au + Au and p + p collisions are presented. They indicate nuclear modification factors (R-AA) which are similar in both magnitude and trend to those found in earlier pi(0) measurements. Linear fits to R-AA as a function of (PT) in 5-20 GeV/c show that the slope is consistent with zero within two standard deviations at all centralities, although a slow rise cannot be excluded. Having different statistical and systematic uncertainties, the pi(0) and eta measurements are complementary at high (PT); thus, along with the extended (PT) range of these data they can provide additional constraints for theoretical modeling and the extraction of transport properties.
Published: 2010

17. Trends in Yield and Azimuthal Shape Modification in Dihadron Correlations in Relativistic Heavy Ion Collisions

Author: Alice Mignerey, C. Baumann, J. L. Charvet, Takao Sakaguchi, S. P. Sorensen, C. L. Woody, A. Berdnikov, S. Dairaku, S. Kametani, C. P. Singh, O. Zaudtke, S. N. White, Senta Greene, M. Kurosawa, C. Klein-Boesing, O. Chvala, M. Virius, Y. Onuki, Johannes Peter Wessels, B. M. Johnson, Zvi Hirsh Citron, Y. Tanaka, Seong H. Kim, A. Isupov, C. Suire, A. T. Basye, S. Hegyi, B. Fadem, E. O'Brien, K. Watanabe, K. Shoji, X. He, L. Baksay, A. D. Frawley, C. H. Chen, S. Bathe, Jan Rak, R. Lacey, K. Nakano, J. G. Lajoie, M. Rosati, S. Huang, W. E. Sondheim, Agneta Oskarsson, A. Glenn, I. Ravinovich, D. Ivanischev, J. Sziklai, P. Chung, J. Imrek, B. Komkov, P. W. Stankus, J. T. Mitchell, Y. Berdnikov, Y. Aramaki, V. Peresedov, I. V. Sourikova, I. J. Choi, A. Kravitz, Alexei Khanzadeev, P. A. Rukoyatkin, R. Granier de Cassagnac, A. Adare, H. Pei, Vladimir Samsonov, M. Bai, R. A. Soltz, H. Borel, E. Stenlund, Sung Keun Park, W. A. Zajc, W. Holzmann, Charles Maguire, Brian Cole, T. Ichihara, A. A. Vinogradov, M. Mishra, S. Nagamiya, J. Koster, A. Datta, M. Naglis, Takahiro Fusayasu, V. Baublis, Jiangyong Jia, Y. Goto, C. L. Silva, M. Grosse Perdekamp, M. E. Connors, Tamas Ferenc Csorgo, Kiyoshi Tanida, E. Kistenev, A. Denisov, V. Cianciolo, N. N. Ajitanand, Norio Saito, Y. Tomita, M. A. L. Leite, Maya Hachiya Shimomura, V. S. Pantuev, Zhiying You, R. Seidl, Vladislav Manko, C. A. Ogilvie, M. Slunečka, R. Bennett, S. Batsouli, M. Kawashima, Alexander Malakhov, R. S. Towell, Vaclav Vrba, Klaus Johannes Reygers, Mate Csanad, D. Silvermyr, H. Masui, A. K. Dubey, A. A. Bickley, Kisung Lee, Sergey Fokin, Taku Gunji, H. Gong, J. Seele, M. Finger, T. K. Hemmick, Takahiro Nakamura, M. I. Nagy, M. Gonin, D. Watanabe, J. M. Durham, Yasuo Miake, I. Tserruya, Yu. Efremenko, V. Singh, B. Love, J. L. Nagle, J. Hamblen, M. D. Malik, Y. I. Makdisi, Jongmin Lee, Masayasu Ishihara, E. Vznuzdaev, I. Garishvili, F. Wei, L. Kochenda, M. Issah, Laurent Bernard Aphecetche, Kyeongpil Lee, J. Ide, A. Sukhanov, F. Kajihara, Rui Wei, Peter Christiansen, D. Winter, D. Yu Peressounko, S. Belikov, Emily D. Richardson, H. Pereira, Susumu Oda, A. Durum, R. Belmont, J. S. Kapustinsky, Anne Marie Sickles, A. G. Litvinenko, F. Staley, L. S. Zolin, W. J. Park, Christopher Rosen, P. D. Barnes, A. Yanovich, A. Kozlov, S. Butsyk, M. Ouchida, N. Means, J. Asai, G. R. Young, Marisilvia Donadelli, V. Bumazhnov, V. Babintsev, T. V. Moukhanova, Y. Morino, T. Kempel, Dong-Hun Kim, D. Kawall, H. Themann, K. Okada, M. J. Tannenbaum, D. Lynch, D. S. Jumper, K. A. Drees, C. Vale, H. A. Gustafsson, A. Hadj Henni, G. S. Kyle, K. Sakashita, R. Vértesi, V. L. Rykov, T. Dahms, Catherine Micaela Silvestre, K. Yamaura, O. Dietzsch, E. T. Atomssa, H. Valle, H. Torii, R. Seto, K. Haruna, B. Meredith, John Hill, C. Zhang, Shingo Sakai, S. Zhou, Andry Malala Rakotozafindrabe, B. S. Chang, Christine Angela Aidala, J. Klay, K. S. Joo, B. Sahlmueller, Beomkyu Kim, K. Boyle, H. En'yo, J. Murata, Y. Nakamiya, Y. J. Mao, Minghui Liu, Wei Xie, James Alexander, C. Y. Chi, Yasutada Akiba, Dipanwita Dutta, D. Mukhopadhyay, P. Ružička, A. Baldisseri, I. Danchev, R. Tanabe, Toru Sugitate, S. D. Rolnick, D. Layton, M. J. Leitch, K. B. Lee, S. Rembeczki, Jason Kamin, A. Kiss, Henner Buesching, R. Averbeck, Gerd Joachim Kunde, Byung-Sik Hong, K. N. Barish, Julia Velkovska, David D'Enterria, T. L. Thomas, A. Bazilevsky, G. Baksay, I. Shein, Hongfang Liu, D. E. Fields, S. P. Stoll, Viktor Riabov, J. H. Kang, Jason Newby, W. C. Chang, M. Heffner, Ajit Kumar Mohanty, Kenneth Francis Read, J. E. Frantz, T. A. Shibata, Steve Edwards, R. P. Pisani, S. S.E. Rosendahl, K. Sedgwick, S. Sano, T. Sato, Ryugo S. Hayano, François Fleuret, Alexandre Lebedev, B. V. Jacak, D. M. Lee, K. Das, Rushan Han, K. S. Sim, V. Dzhordzhadze, G. Bunce, Marcus Hohlmann, D. Roach, K. M. Kijima, Y. Kwon, J. S. Haggerty, A. V. Kazantsev, A. Deshpande, Y. Riabov, S. Esumi, E. P. Hartouni, L. A. Linden Levy, Eunja Kim, M. L. Brooks, A. Churyn, J. P. Wood, E. J. Desmond, J. Jin, Y. Fukao, Kenta Shigaki, D. Isenhower, M. McCumber, A. Toia, L. Mašek, M. Nguyen, Y. J. Kim, K. Kiriluk, P. Rosnet, K. O. Eyser, D. Jouan, A. K. Purwar, K. Fujiwara, D. Sharma, R. Yang, H. Iinuma, E. M. Takagui, T. Hester, M. Togawa, A. S. Nyanin, E. Vazquez-Zambrano, J. Park, Xingguo Li, F. Matathias, D. Kotchetkov, Y. L. Yamaguchi, R. Ichimiya, E. H. Kim, R. Pak, L. Tomášek, E. Leitner, Alexander Milov, I. Nakagawa, R. Luechtenborg, Y. Watanabe, A. P.T. Palounek, T. Engelmore, T. Niita, Rachid Nouicer, M. Proissl, Kensuke Homma, N. Kamihara, N. A. Sparks, I. Younus, P. Mikeš, H. Qu, K. Imai, Y. Tsuchimoto, P. Constantin, S. Chernichenko, H. W. Van Hecke, B. Azmoun, Kazuyoshi Kurita, A. Soldatov, J. Hanks, A. Král, M. J. Kweon, K. I. Hahn, O. Drapier, Frank Ellinghaus, B. Bassalleck, V-N. Tram, N. Grau, A. Drees, I. E. Yushmanov, E. R. Kinney, M. Konno, T. C. Awes, Kyoichiro Ozawa, T. Liška, J. S. Bok, Jun Kikuchi, Motoi Inaba, R. M. Wright, Tadaaki Isobe, P. L. McGaughey, M. Chiu, D. P. Morrison, S. Campbell, Y. S. Lai, A. Yu. Semenov, J. Gosset, Hideki Hamagaki, K. Aoki, V. E. Semenov, G. David, Tatsuya Chujo, S. Yokkaichi, Y. Ikeda, J. G. Boissevain, E. J. Mannel, Jen-Chieh Peng, C. Pinkenburg, M. Stepanov, M. Oka, A. Dion, Inkyu Park, Xiong Wang, Dong Jo Kim, Atsushi Taketani, A. Veicht, A. Enokizono, P. Liebing, Tae-Yeon Lee, Martin Purschke, S. Afanasiev, A. Ster, G. Roche, A. Morreale, D. Hornback, Z. Fraenkel, A. Taranenko, Kazushi Miki, T. Horaguchi, Brajesh K. Singh, R. K. Choudhury, S. Tarafdar, Eva Haslum, B. Lenzi, C. M. Camacho, Prashant Shukla, S. F. Pate, H. Al-Bataineh, V. Papavassiliou, S. Sawada, J. Ying, A. Franz, M. Wysocki, P. Tarján, Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), PHENIX, Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Energy loss, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, FOS: Physical sciences, Parton, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Azimuth, Yield (chemistry), 0103 physical sciences, Heavy ion, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment
Abstract: Fast parton probes produced by hard scattering and embedded within collisions of large nuclei have shown that partons suffer large energy loss and that the produced medium may respond collectively to the lost energy. We present measurements of neutral pion trigger particles at transverse momenta p^t_T = 4-12 GeV/c and associated charged hadrons (p^a_T = 0.5-7 GeV/c) as a function of relative azimuthal angle Delta Phi at midrapidity in Au+Au and p+p collisions at sqrt(s_NN) = 200 GeV. These data lead to two major observations. First, the relative angular distribution of low momentum hadrons, whose shape modification has been interpreted as a medium response to parton energy loss, is found to be modified only for p^t_T < 7 GeV/c. At higher p^t_T, the data are consistent with unmodified or very weakly modified shapes, even for the lowest measured p^a_T. This observation presents a quantitative challenge to medium response scenarios. Second, the associated yield of hadrons opposite to the trigger particle in Au+Au relative to that in p+p (I_AA) is found to be suppressed at large momentum (IAA ~ 0.35-0.5), but less than the single particle nuclear modification factor (R_AA ~0.2)., 427 authors, 6 pages text, 3 figures, 1 table. Submitted to Phys. Rev. Lett. v2 has minor changes in response to PRL referee comments. Plain text data tables for the points plotted in figures are publicly available at http://www.phenix.bnl.gov/papers.html
Published: 2010

18. CONCEPTUAL DESIGN REPORT FOR A FAST MUON TRIGGER

Author: B. Meredith, S. Wadhams, K. O. Eyser, Beomkyu Kim, Wei Xie, A. Caringi, T. Kempel, M. Chiu, A. Taketani, D. S. Jumper, M. J. Leitch, D. Isenhower, J. G. Lajoie, Norio Saito, S. Dairaku, R. Seidl, X. He, C. Watts, A. Sato, K. Shoji, K. Karatsu, A. Glenn, E. O'Brien, Yongsun Kim, C. Vale, G. Bunce, J. Murata, D. E. Fields, J. S. Haggerty, Y. Fukao, D. Lynch, J. Koster, K. Kurita, N. A. Sparks, E. Thorsland, D. Northacker, W. A. Zajc, W. Sippach, K. S. Sim, E. R. Kinney, Byung-Sik Hong, S. K. Park, S. Hu, R. Yang, J. C. Hill, R. M. Wright, C. Oakley, K. Aoki, S. Zhou, Jen-Chieh Peng, K. N. Barish, M. G. Perdekamp, K. Imai, K. Kiriluk, Kisung Lee, J. L. Nagle, G. Sleege, Xingguo Li, Austin Thomas Basye, M. L. Brooks, D. Layton, Rushan Han, R. Seto, B. Fadem, P. Lichtenwalner, J. Adams, K. Senzaka, T. Murakami, J. Ying, K. Tanida, Carly W. Butler, John Wood, Y. J. Mao, K. S. Lee, S. E. Williamson, R. S. Towell, F. Wei, N. Makins, J. Ide, C. Y. Chi, and J. Blackburn
Subjects: Physics, Quark, Particle physics, Muon, High Energy Physics::Phenomenology, Detector, Nuclear physics, Conceptual design, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, Relativistic Heavy Ion Collider, Spin (physics), Lepton
Abstract: This document is a Conceptual Design Report for a fast muon trigger for the PHENIX experiment that will enable the study of flavor separated quark and anti-quark spin polarizations in the proton. A powerful way of measuring these polarizations is via single spin asymmetries for W boson production in polarized proton-proton reactions. The measurement is done by tagging W{sup +} and W{sup -} via their decay into high transverse momentum leptons in the forward directions. The PHENIX experiment is capable of measuring high momentum muons at forward rapidity, but the current online trigger does not have sufficient rejection to sample the rare leptons fromW decay at the highest luminosities at the Relativistic Heavy Ion Collider (RHIC). This Report details the goals, design, R&D, and schedule for building new detectors and trigger electronics to use the full RHIC luminosity to make this critical measurement. The idea for W boson measurements in polarized proton-proton collisions at RHIC was first suggested by Jacques Soffer and Claude Bourrely in 1995. This prompted the RIKEN institute in Japan to supply funds to build a second muon arm for PHENIX (south muon arm). The existence of both a north and south muon arm makes it possiblemore » to utilize a Z{sup 0} sample to study and control systematic uncertainties which arise in the reconstruction of high momentum muons. This document has its origins in recommendations made by a NSAC Subcommittee that reviewed the U.S. Heavy Ion Physics Program in June 2004. Part of their Recommendation 1 was to 'Invest in near-term detector upgrades of the two large experiments, PHENIX and STAR'. In Recommendation 2 the subcommittee stated '- detector improvements proceed at a rate that allows a timely determination of the flavor dependence of the quark-antiquark sea polarization through W-asymmetry measurements' as we are proposing here. On September 13, 2004 DOE requested from BNL a report articulating a research plan for the RHIC spin physics program. The document was submitted to DOE on January 31, 2005. It pointed out that one of three top priorities for the program lies in the clean and elegant measurement of the quark and anti-quark polarizations sorted by quark flavor through the parity-violating production of W bosons.« less
Published: 2007

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1. Measurement of jet-medium interactions via direct photon-hadron correlations in Au+Au and d+Au collisions at sNN=200 GeV

2. Azimuthally anisotropic emission of low-momentum direct photons in Au + Au collisions at sNN=200 GeV

3. Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions atsNN=200GeV

4. Scaling properties of fractional momentum loss of high-pThadrons in nucleus-nucleus collisions atsNNfrom 62.4 GeV to 2.76 TeV

5. Systematic study of charged-pion and kaon femtoscopy in Au + Au collisions atsNN=200GeV

6. Centrality dependence of low-momentum direct-photon production inAu+Aucollisions atsNN=200 GeV

7. Azimuthal anisotropy ofπ0andηmesons in Au + Au collisions atsNN=200GeV

8. Spectra and ratios of identified particles in Au+Au andd+Au collisions atsNN=200GeV

9. Medium Modification of Jet Fragmentation inAu+AuCollisions atsNN=200 GeVMeasured in Direct Photon-Hadron Correlations

10. Deviation from quark number scaling of the anisotropy parameterv2of pions, kaons, and protons inAu+Aucollisions atsNN=200GeV

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

12. J/ψsuppression at forward rapidity in Au+Au collisions atsNN=200GeV

13. Suppression of away-side jet fragments with respect to the reaction plane in Au + Au collisions atsNN=200GeV

14. Azimuthal Anisotropy ofπ0Production inAu+AuCollisions atsNN=200 GeV: Path-Length Dependence of Jet Quenching and the Role of Initial Geometry

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

16. Transverse momentum dependence ofηmeson suppression in Au+Au collisions atsNN=200GeV

17. Trends in Yield and Azimuthal Shape Modification in Dihadron Correlations in Relativistic Heavy Ion Collisions

18. CONCEPTUAL DESIGN REPORT FOR A FAST MUON TRIGGER

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