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Medium Modification of Jet Fragmentation in Au plus Au Collisions at root S-NN=200 GeV Measured in Direct Photon-Hadron Correlations

Adare, A.; Afanasiev, S.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Akimoto, R.; Al-Bataineh, H.; Al-Ta'ani, H.; Alexander, J. and Angerami, A., et al. (2013) In Physical Review Letters 111(3).
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... (More)
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. (Less)
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Physical Review Letters
volume
111
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3
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American Physical Society
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  • scopus:84880552431
ISSN
1079-7114
DOI
10.1103/PhysRevLett.111.032301
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English
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c80370eb-ad58-4bc9-b99f-ec524e10d619 (old id 3973405)
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2013-08-21 15:46:56
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@article{c80370eb-ad58-4bc9-b99f-ec524e10d619,
  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.},
  articleno    = {032301},
  author       = {Adare, A. and Afanasiev, S. and Aidala, C. and Ajitanand, N. N. and Akiba, Y. and Akimoto, R. and Al-Bataineh, H. and Al-Ta'ani, H. and Alexander, J. and Angerami, A. and Aoki, K. and Apadula, N. and Aphecetche, L. and Aramaki, Y. and Armendariz, R. and Aronson, S. H. and Asai, J. and Asano, H. and Aschenauer, E. C. and Atomssa, E. T. and Averbeck, R. and Awes, T. C. and Azmoun, B. and Babintsev, V. and Bai, M. and Baksay, G. and Baksay, L. and Baldisseri, A. and Bannier, B. and Barish, K. N. and Barnes, P. D. and Bassalleck, B. and Basye, A. T. and Bathe, S. and Batsouli, S. and Baublis, V. and Baumann, C. and Baumgart, S. and Bazilevsky, A. and Belikov, S. and Belmont, R. and Bennett, R. and Berdnikov, A. and Berdnikov, Y. and Bickley, A. A. and Bing, X. and Blau, D. S. and Boissevain, J. G. and Bok, J. S. and Borel, H. and Boyle, K. and Brooks, M. L. and Buesching, H. and Bumazhnov, V. and Bunce, G. and Butsyk, S. and Camacho, C. M. and Campbell, S. and Castera, P. and Chang, B. S. and Chang, W. C. and Charvet, J. -L. and Chen, C. -H. and Chernichenko, S. and Chi, C. Y. and Chiba, J. and Chiu, M. and Choi, I. J. and Choi, J. B. and Choi, S. and Choudhury, R. K. and Christiansen, Peter and Chujo, T. and Chung, P. and Churyn, A. and Chvala, O. and Cianciolo, V. and Citron, Z. and Cleven, C. R. and Cole, B. A. and Comets, M. P. and Connors, M. and Constantin, P. and Csanad, M. and Csoergo, T. and Dahms, T. and Dairaku, S. and Danchev, I. and Das, K. and Datta, A. and Daugherity, M. S. and David, G. and Deaton, M. B. and Dehmelt, K. and Delagrange, H. and Denisov, A. and d'Enterria, D. and Deshpande, A. and Desmond, E. J. and Dharmawardane, K. V. and Dietzsch, O. and Ding, L. and Dion, A. and Donadelli, M. and Drapier, O. and Drees, A. and Drees, K. A. and Dubey, A. K. and Durham, J. M. and Durum, A. and Dutta, D. and Dzhordzhadze, V. and D'Orazio, L. and Edwards, S. and Efremenko, Y. 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C. and Hobbs, R. and Hohlmann, M. and Hollis, R. S. and Holzmann, W. and Homma, K. and Hong, B. and Horaguchi, T. and Hori, Y. and Hornback, D. and Huang, S. and Ichihara, T. and Ichimiya, R. and Ide, J. and Iinuma, H. and Ikeda, Y. and Imai, K. and Imrek, J. and Inaba, M. and Inoue, Y. and Iordanova, A. and Isenhower, D. and Isenhower, L. and Ishihara, M. and Isobe, T. and Issah, M. and Isupov, A. and Ivanischev, D. and Jacak, B. V. and Javani, M. and Jia, J. and Jiang, X. and Jin, J. and Jinnouchi, O. and Johnson, B. M. and Joo, K. S. and Jouan, D. and Jumper, D. S. and Kajihara, F. and Kametani, S. and Kamihara, N. and Kamin, J. and Kaneta, M. and Kaneti, S. and Kang, B. H. and Kang, J. H. and Kang, J. S. and Kanou, H. and Kapustinsky, J. and Karatsu, K. and Kasai, M. and Kawall, D. and Kawashima, M. and Kazantsev, A. V. and Kempel, T. and Khanzadeev, A. and Kijima, K. M. and Kikuchi, J. and Kim, B. I. and Kim, C. and Kim, D. H. and Kim, D. J. and Kim, E. and Kim, E. -J. and Kim, H. J. and Kim, K. -B. and Kim, S. H. and Kim, Y. -J. and Kim, Y. K. and Kinney, E. and Kiriluk, K. and Kiss, A. and Kistenev, E. and Kiyomichi, A. and Klatsky, J. and Klay, J. and Klein-Boesing, C. and Kleinjan, D. and Kline, P. and Kochenda, L. and Kochetkov, V. and Komatsu, Y. and Komkov, B. and Konno, M. and Koster, J. and Kotchetkov, D. and Kotov, D. and Kozlov, A. and Kral, A. and Kravitz, A. and Krizek, F. and Kubart, J. and Kunde, G. J. and Kurihara, N. and Kurita, K. and Kurosawa, M. and Kweon, M. J. and Kwon, Y. and Kyle, G. S. and Lacey, R. and Lai, Y. S. and Lajoie, J. G. and Layton, D. and Lebedev, A. and Lee, B. and Lee, D. M. and Lee, J. and Lee, K. and Lee, K. B. and Lee, K. S. and Lee, M. K. and Lee, S. H. and Lee, S. R. and Lee, T. and Leitch, M. J. and Leite, M. A. L. and Leitgab, M. and Leitner, E. and Lenzi, B. and Lewis, B. and Li, X. and Liebing, P. and Lim, S. H. and Levy, L. A. Linden and Liska, T. and Litvinenko, A. and Liu, H. and Liu, M. X. and Love, B. and Luechtenborg, R. and Lynch, D. and Maguire, C. F. and Makdisi, Y. I. and Makek, M. and Malakhov, A. and Malik, M. D. and Manion, A. and Manko, V. I. and Mannel, E. and Mao, Y. and Masek, L. and Masui, H. and Masumoto, S. and Matathias, F. and McCumber, M. and McGaughey, P. L. and McGlinchey, D. and McKinney, C. and Means, N. and Mendoza, M. and Meredith, B. and Miake, Y. and Mibe, T. and Mignerey, A. C. and Mikes, P. and Miki, K. and Miller, T. E. and Milov, A. and Mioduszewski, S. and Mishra, D. K. and Mishra, M. and Mitchell, J. T. and Mitrovski, M. and Miyachi, Y. and Miyasaka, S. and Mohanty, A. K. and Moon, H. J. and Morino, Y. and Morreale, A. and Morrison, D. P. and Motschwiller, S. and Moukhanova, T. V. and Mukhopadhyay, D. and Murakami, T. and Murata, J. and Nagae, T. and Nagamiya, S. and Nagata, Y. and Nagle, J. L. and Naglis, M. and Nagy, M. I. and Nakagawa, I. and Nakamiya, Y. and Nakamura, K. R. and Nakamura, T. and Nakano, K. and Nattrass, C. and Nederlof, A. and Newby, J. and Nguyen, M. and Nihashi, M. and Niida, T. and Norman, B. E. and Nouicer, R. and Novitzky, N. and Nyanin, A. S. and O'Brien, E. and Oda, S. X. and Ogilvie, C. A. and Ohnishi, H. and Oka, M. and Okada, K. and Omiwade, O. O. and Onuki, Y. and Oskarsson, Anders and Ouchida, M. and Ozawa, K. and Pak, R. and Pal, D. and Palounek, A. P. T. and Pantuev, V. and Papavassiliou, V. and Park, B. H. and Park, I. H. and Park, J. and Park, S. K. and Park, W. J. and Pate, S. F. and Patel, L. and Pei, H. and Peng, J. -C. and Pereira, H. and Peresedov, V. and Peressounko, D. Yu. and Petti, R. and Pinkenburg, C. and Pisani, R. P. and Proissl, M. and Purschke, M. L. and Purwar, A. K. and Qu, H. and Rak, J. and Rakotozafindrabe, A. and Ravinovich, I. and Read, K. F. and Rembeczki, S. and Reuter, M. and Reygers, K. and Reynolds, R. and Riabov, V. and Riabov, Y. and Richardson, E. and Roach, D. and Roche, G. and Rolnick, S. D. and Romana, A. and Rosati, M. and Rosen, C. A. and Rosendahl, Sarah and Rosnet, P. and Rukoyatkin, P. and Ruzicka, P. and Rykov, V. L. and Sahlmueller, B. and Saito, N. and Sakaguchi, T. and Sakai, S. and Sakashita, K. and Sakata, H. and Samsonov, V. and Sano, M. and Sano, S. and Sarsour, M. and Sato, S. and Sato, T. and Sawada, S. and Sedgwick, K. and Seele, J. and Seidl, R. and Semenov, A. Yu. and Semenov, V. and Sen, A. and Seto, R. and Sharma, D. and Shein, I. and Shevel, A. and Shibata, T. -A. and Shigaki, K. and Shimomura, M. and Shoji, K. and Shukla, P. and Sickles, A. and Silva, C. L. and Silvermyr, D. and Silvestre, C. and Sim, K. S. and Singh, B. K. and Singh, C. P. and Singh, V. and Skutnik, S. and Slunecka, M. and Soldatov, A. and Soltz, R. A. and Sondheim, W. E. and Sorensen, S. P. and Soumya, M. and Sourikova, I. V. and Sparks, N. A. and Staley, F. and Stankus, P. W. and Stenlund, Evert and Stepanov, M. and Ster, A. and Stoll, S. P. and Sugitate, T. and Suire, C. and Sukhanov, A. and Sun, J. and Sziklai, J. and Tabaru, T. and Takagi, S. and Takagui, E. M. and Takahara, A. and Taketani, A. and Tanabe, R. and Tanaka, Y. and Taneja, S. and Tanida, K. and Tannenbaum, M. J. and Tarafdar, S. and Taranenko, A. and Tarjan, P. and Tennant, E. and Themann, H. and Thomas, T. L. and Todoroki, T. and Togawa, M. and Toia, A. and Tojo, J. and Tomasek, L. and Tomasek, M. and Tomita, Y. and Torii, H. and Towell, R. S. and Tram, V-N. and Tserruya, I. and Tsuchimoto, Y. and Tsuji, T. and Vale, C. and Valle, H. and van Hecke, H. W. and Vargyas, M. and Vazquez-Zambrano, E. and Veicht, A. and Velkovska, J. and Vertesi, R. and Vinogradov, A. A. and Virius, M. and Vossen, A. and Vrba, V. and Vznuzdaev, E. and Wagner, M. and Walker, D. and Wang, X. R. and Watanabe, D. and Watanabe, K. and Watanabe, Y. and Watanabe, Y. S. and Wei, F. and Wei, R. and Wessels, J. and White, S. N. and Winter, D. and Wolin, S. and Wood, J. P. and Woody, C. L. and Wright, R. M. and Wysocki, M. and Xie, W. and Yamaguchi, Y. L. and Yamaura, K. and Yang, R. and Yanovich, A. and Yasin, Z. and Ying, J. and Yokkaichi, S. and You, Z. and Young, G. R. and Younus, I. and Yushmanov, I. E. and Zajc, W. A. and Zaudtke, O. and Zelenski, A. and Zhang, C. and Zhou, S. and Zimanyi, J. and Zolin, L.},
  issn         = {1079-7114},
  language     = {eng},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Medium Modification of Jet Fragmentation in Au plus Au Collisions at root S-NN=200 GeV Measured in Direct Photon-Hadron Correlations},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.111.032301},
  volume       = {111},
  year         = {2013},
}