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Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Central d plus Au Collisions at root s(NN)=200 GeV

Adare, A.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Al-Bataineh, H.; Alexander, J.; Angerami, A.; Aoki, K.; Apadula, N. and Aramaki, Y., et al. (2013) In Physical Review Letters 111(21).
Abstract
The PHENIX collaboration at the Relativistic Heavy Ion Collider (RHIC) reports measurements of azimuthal dihadron correlations near midrapidity in d + Au collisions at root s(NN) = 200 GeV. These measurements complement recent analyses by experiments at the Large Hadron Collider (LHC) involving central p + Pb collisions at root s(NN) = 5.02 TeV, which have indicated strong anisotropic long-range correlations in angular distributions of hadron pairs. The origin of these anisotropies is currently unknown. Various competing explanations include parton saturation and hydrodynamic flow. We observe qualitatively similar, but larger, anisotropies in d + Au collisions at RHIC compared to those seen in p + Pb collisions at the LHC. The larger... (More)
The PHENIX collaboration at the Relativistic Heavy Ion Collider (RHIC) reports measurements of azimuthal dihadron correlations near midrapidity in d + Au collisions at root s(NN) = 200 GeV. These measurements complement recent analyses by experiments at the Large Hadron Collider (LHC) involving central p + Pb collisions at root s(NN) = 5.02 TeV, which have indicated strong anisotropic long-range correlations in angular distributions of hadron pairs. The origin of these anisotropies is currently unknown. Various competing explanations include parton saturation and hydrodynamic flow. We observe qualitatively similar, but larger, anisotropies in d + Au collisions at RHIC compared to those seen in p + Pb collisions at the LHC. The larger extracted upsilon(2) values in d + Au are consistent with expectations from hydrodynamic calculations owing to the larger expected initial-state eccentricity compared with that from p + Pb collisions. When both are divided by an estimate of the initial-state eccentricity the scaled anisotropies follow a common trend with multiplicity that may extend to heavy ion data at RHIC and the LHC, where the anisotropies are widely thought to arise from hydrodynamic flow. (Less)
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Physical Review Letters
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111
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21
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American Physical Society
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1079-7114
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10.1103/PhysRevLett.111.212301
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English
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@article{18bdad2c-6873-469e-81a8-303b1e121d3c,
  abstract     = {The PHENIX collaboration at the Relativistic Heavy Ion Collider (RHIC) reports measurements of azimuthal dihadron correlations near midrapidity in d + Au collisions at root s(NN) = 200 GeV. These measurements complement recent analyses by experiments at the Large Hadron Collider (LHC) involving central p + Pb collisions at root s(NN) = 5.02 TeV, which have indicated strong anisotropic long-range correlations in angular distributions of hadron pairs. The origin of these anisotropies is currently unknown. Various competing explanations include parton saturation and hydrodynamic flow. We observe qualitatively similar, but larger, anisotropies in d + Au collisions at RHIC compared to those seen in p + Pb collisions at the LHC. The larger extracted upsilon(2) values in d + Au are consistent with expectations from hydrodynamic calculations owing to the larger expected initial-state eccentricity compared with that from p + Pb collisions. When both are divided by an estimate of the initial-state eccentricity the scaled anisotropies follow a common trend with multiplicity that may extend to heavy ion data at RHIC and the LHC, where the anisotropies are widely thought to arise from hydrodynamic flow.},
  articleno    = {212301},
  author       = {Adare, A. and Aidala, C. and Ajitanand, N. N. and Akiba, Y. and Al-Bataineh, H. and Alexander, J. and Angerami, A. and Aoki, K. and Apadula, N. and Aramaki, Y. 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 Barish, K. N. and Bassalleck, B. and Basye, A. T. and Bathe, S. and Baublis, V. and Baumann, C. and Bazilevsky, A. and Belikov, S. and Belmont, R. and Bennett, R. and Bhom, J. H. and Blau, D. S. and Bok, J. S. and Boyle, K. and Brooks, M. L. and Buesching, H. and Bumazhnov, V. and Bunce, G. and Butsyk, S. and Campbell, S. and Caringi, A. and Chen, C-H and Chi, C. Y. and Chiu, M. and Choi, I. J. and Choi, J. B. and Choudhury, R. K. and Christiansen, Peter and Chujo, T. and Chung, P. and Chvala, O. and Cianciolo, V. and Citron, Z. and Cole, B. A. and del Valle, Z. Conesa and Connors, M. and Csanad, M. and Csoergo, T. and Dahms, T. and Dairaku, S. and Danchev, I. and Das, K. and Datta, A. and David, G. and Dayananda, M. K. and Denisov, A. and Deshpande, A. and Desmond, E. J. and Dharmawardane, K. V. and Dietzsch, O. and Dion, A. and Donadelli, M. and Drapier, O. and Drees, A. and Drees, K. A. and Durham, J. M. and Durum, A. and Dutta, D. and D'Orazio, L. and Edwards, S. and Efremenko, Y. V. and Ellinghaus, F. and Engelmore, T. and Enokizono, A. and En'yo, H. and Esumi, S. and Fadem, B. and Fields, D. E. and Finger, M. and Finger, M. Jr. and Fleuret, F. and Fokin, S. L. and Fraenkel, Z. and Frantz, J. E. and Franz, A. and Frawley, A. D. and Fujiwara, K. and Fukao, Y. and Fusayasu, T. and Garishvili, I. and Glenn, A. and Gong, H. and Gonin, M. and Goto, Y. and de Cassagnac, R. Granier and Grau, N. and Greene, S. V. and Grim, G. and Perdekamp, M. Grosse and Gunji, T. and Gustafsson, Hans-Åke and Haggerty, J. S. and Hahn, K. 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J. and Kim, E-J and Kim, Y-J and Kinney, E. and Kiss, A. and Kistenev, E. and Kleinjan, D. and Kochenda, L. and Komkov, B. and Konno, M. and Koster, J. and Kral, A. and Kravitz, A. and Kunde, G. J. and Kurita, K. and Kurosawa, M. and Kwon, Y. and Kyle, G. S. and Lacey, R. and Lai, Y. S. and Lajoie, J. G. and Lebedev, A. and Lee, D. M. and Lee, J. and Lee, K. B. and Lee, K. S. and Leitch, M. J. and Leite, M. A. L. and Li, X. and Lichtenwalner, P. and Liebing, P. and Levy, L. A. Linden and Liska, T. and Liu, H. and Liu, M. X. and Love, B. and Lynch, D. and Maguire, C. F. and Makdisi, Y. I. and Malik, M. D. and Manko, V. I. and Mannel, E. and Mao, Y. and Masui, H. and Matathias, F. and McCumber, M. and McGaughey, P. L. and McGlinchey, D. and Means, N. and Meredith, B. and Miake, Y. and Mibe, T. and Mignerey, A. C. and Miki, K. and Milov, A. and Mitchell, J. T. and Mohanty, A. K. and Moon, H. J. and Morino, Y. and Morreale, A. and Morrison, D. P. and Moukhanova, T. V. and Murakami, T. and Murata, J. and Nagamiya, S. 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 Nam, S. and Newby, J. and Nguyen, M. and Nihashi, M. and Nouicer, R. and Nyanin, A. S. and Oakley, C. and O'Brien, E. and Oda, S. X. and Ogilvie, C. A. and Oka, M. and Okada, K. and Onuki, Y. and Oskarsson, Anders and Ouchida, M. and Ozawa, K. and Pak, R. and Pantuev, V. and Papavassiliou, V. and Park, I. H. and Park, S. K. and Park, W. J. and Pate, S. F. and Pei, H. and Peng, J-C and Pereira, H. and Perepelitsa, D. and Peressounko, D. Yu. and Petti, R. and Pinkenburg, C. and Pisani, R. P. and Proissl, M. and Purschke, M. L. and Qu, H. and Rak, J. and Ravinovich, I. and Read, K. F. and Rembeczki, S. and Reygers, K. and Riabov, V. and Riabov, Y. and Richardson, E. and Roach, D. and Roche, G. and Rolnick, S. D. and Rosati, M. and Rosen, C. A. and Rosendahl, Sarah and Ruzicka, P. and Sahlmueller, B. and Saito, N. and Sakaguchi, T. and Sakashita, K. and Samsonov, V. and Sano, S. and Sato, T. and Sawada, S. and Sedgwick, K. and Seele, J. and Seidl, R. and Seto, R. and Sharma, D. and Shein, I. 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 Slunecka, M. and Soltz, R. A. and Sondheim, W. E. and Sorensen, S. P. and Sourikova, I. V. and Stankus, P. W. and Stenlund, Evert and Stoll, S. P. and Sugitate, T. and Sukhanov, A. and Sziklai, J. and Takagui, E. M. 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 Themann, H. and Thomas, D. and Thomas, T. L. and Togawa, M. and Toia, A. and Tomasek, L. and Torii, H. and Towell, R. S. and Tserruya, I. and Tsuchimoto, Y. and Vale, C. and Valle, H. and van Hecke, H. W. and Vazquez-Zambrano, E. and Veicht, A. and Velkovska, J. and Vertesi, R. and Virius, M. and Vrba, V. and Vznuzdaev, E. and Wang, X. R. and Watanabe, D. and Watanabe, K. and Watanabe, Y. and Wei, F. and Wei, R. and Wessels, J. and White, S. N. and Winter, D. and Woody, C. L. and Wright, R. M. and Wysocki, M. and Yamaguchi, Y. L. and Yamaura, K. and Yang, R. and Yanovich, A. 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 Zhou, S.},
  issn         = {1079-7114},
  language     = {eng},
  number       = {21},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Central d plus Au Collisions at root s(NN)=200 GeV},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.111.212301},
  volume       = {111},
  year         = {2013},
}