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Phys Rev Lett. 2015 May 15;114(19):192301. doi: 10.1103/PhysRevLett.114.192301. Epub 2015 May 12.

Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Central d+Au Collisions at sqrt[s_{NN}]=200 GeV.

Physical review letters

A Adare, C Aidala, N N Ajitanand, Y Akiba, R Akimoto, H Al-Bataineh, H Al-Ta'ani, J Alexander, K R Andrews, A Angerami, K Aoki, N Apadula, E Appelt, Y Aramaki, R Armendariz, E C Aschenauer, E T Atomssa, R Averbeck, T C Awes, B Azmoun, V Babintsev, M Bai, G Baksay, L Baksay, B Bannier, K N Barish, B Bassalleck, A T Basye, S Bathe, V Baublis, C Baumann, A Bazilevsky, S Belikov, R Belmont, J Ben-Benjamin, R Bennett, J H Bhom, D S Blau, J S Bok, K Boyle, M L Brooks, D Broxmeyer, H Buesching, V Bumazhnov, G Bunce, S Butsyk, S Campbell, A Caringi, P Castera, C-H Chen, C Y Chi, M Chiu, I J Choi, J B Choi, R K Choudhury, P Christiansen, T Chujo, P Chung, O Chvala, V Cianciolo, Z Citron, B A Cole, Z Conesa Del Valle, M Connors, M Csanád, T Csörgő, T Dahms, S Dairaku, I Danchev, K Das, A Datta, G David, M K Dayananda, A Denisov, A Deshpande, E J Desmond, K V Dharmawardane, O Dietzsch, A Dion, M Donadelli, O Drapier, A Drees, K A Drees, J M Durham, A Durum, D Dutta, L D'Orazio, S Edwards, Y V Efremenko, F Ellinghaus, T Engelmore, A Enokizono, H En'yo, S Esumi, B Fadem, D E Fields, M Finger, M Finger, F Fleuret, S L Fokin, Z Fraenkel, J E Frantz, A Franz, A D Frawley, K Fujiwara, Y Fukao, T Fusayasu, C Gal, I Garishvili, A Glenn, H Gong, X Gong, M Gonin, Y Goto, R Granier de Cassagnac, N Grau, S V Greene, G Grim, M Grosse Perdekamp, T Gunji, L Guo, H-Å Gustafsson, J S Haggerty, K I Hahn, H Hamagaki, J Hamblen, R Han, J Hanks, C Harper, K Hashimoto, E Haslum, R Hayano, X He, M Heffner, T K Hemmick, T Hester, J C Hill, M Hohlmann, R S Hollis, W Holzmann, K Homma, B Hong, T Horaguchi, Y Hori, D Hornback, S Huang, T Ichihara, R Ichimiya, H Iinuma, Y Ikeda, K Imai, M Inaba, A Iordanova, D Isenhower, M Ishihara, M Issah, D Ivanischev, Y Iwanaga, B V Jacak, J Jia, X Jiang, J Jin, D John, B M Johnson, T Jones, K S Joo, D Jouan, D S Jumper, F Kajihara, J Kamin, S Kaneti, B H Kang, J H Kang, J S Kang, J Kapustinsky, K Karatsu, M Kasai, D Kawall, M Kawashima, A V Kazantsev, T Kempel, A Khanzadeev, K M Kijima, J Kikuchi, A Kim, B I Kim, D J Kim, E-J Kim, Y-J Kim, Y K Kim, E Kinney, Á Kiss, E Kistenev, D Kleinjan, P Kline, L Kochenda, B Komkov, M Konno, J Koster, D Kotov, A Král, A Kravitz, G J Kunde, K Kurita, M Kurosawa, Y Kwon, G S Kyle, R Lacey, Y S Lai, J G Lajoie, A Lebedev, D M Lee, J Lee, K B Lee, K S Lee, S H Lee, S R Lee, M J Leitch, M A L Leite, X Li, P Lichtenwalner, P Liebing, S H Lim, L A Linden Levy, T Liška, H Liu, M X Liu, B Love, D Lynch, C F Maguire, Y I Makdisi, M D Malik, A Manion, V I Manko, E Mannel, Y Mao, H Masui, F Matathias, M McCumber, P L McGaughey, D McGlinchey, C McKinney, N Means, M Mendoza, B Meredith, Y Miake, T Mibe, A C Mignerey, K Miki, A Milov, J T Mitchell, Y Miyachi, A K Mohanty, H J Moon, Y Morino, A Morreale, D P Morrison, S Motschwiller, T V Moukhanova, T Murakami, J Murata, S Nagamiya, J L Nagle, M Naglis, M I Nagy, I Nakagawa, Y Nakamiya, K R Nakamura, T Nakamura, K Nakano, S Nam, J Newby, M Nguyen, M Nihashi, R Nouicer, A S Nyanin, C Oakley, E O'Brien, S X Oda, C A Ogilvie, M Oka, K Okada, Y Onuki, A Oskarsson, M Ouchida, K Ozawa, R Pak, V Pantuev, V Papavassiliou, B H Park, I H Park, S K Park, W J Park, S F Pate, L Patel, H Pei, J-C Peng, H Pereira, D Yu Peressounko, R Petti, C Pinkenburg, R P Pisani, M Proissl, M L Purschke, H Qu, J Rak, I Ravinovich, K F Read, S Rembeczki, K Reygers, V Riabov, Y Riabov, E Richardson, D Roach, G Roche, S D Rolnick, M Rosati, C A Rosen, S S E Rosendahl, P Ružička, B Sahlmueller, N Saito, T Sakaguchi, K Sakashita, V Samsonov, S Sano, M Sarsour, T Sato, M Savastio, S Sawada, K Sedgwick, J Seele, R Seidl, R Seto, D Sharma, I Shein, T-A Shibata, K Shigaki, H H Shim, M Shimomura, K Shoji, P Shukla, A Sickles, C L Silva, D Silvermyr, C Silvestre, K S Sim, B K Singh, C P Singh, V Singh, M Slunečka, T Sodre, R A Soltz, W E Sondheim, S P Sorensen, I V Sourikova, P W Stankus, E Stenlund, S P Stoll, T Sugitate, A Sukhanov, J Sun, J Sziklai, E M Takagui, A Takahara, A Taketani, R Tanabe, Y Tanaka, S Taneja, K Tanida, M J Tannenbaum, S Tarafdar, A Taranenko, E Tennant, H Themann, D Thomas, T L Thomas, M Togawa, A Toia, L Tomášek, M Tomášek, H Torii, R S Towell, I Tserruya, Y Tsuchimoto, K Utsunomiya, C Vale, H Valle, H W van Hecke, E Vazquez-Zambrano, A Veicht, J Velkovska, R Vértesi, M Virius, A Vossen, V Vrba, E Vznuzdaev, X R Wang, D Watanabe, K Watanabe, Y Watanabe, Y S Watanabe, F Wei, R Wei, J Wessels, S N White, D Winter, C L Woody, R M Wright, M Wysocki, Y L Yamaguchi, K Yamaura, R Yang, A Yanovich, J Ying, S Yokkaichi, J S Yoo, Z You, G R Young, I Younus, I E Yushmanov, W A Zajc, A Zelenski, S Zhou,

Affiliations

  1. University of Colorado, Boulder, Colorado 80309, USA.
  2. Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  3. Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003-9337, USA.
  4. Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA.
  5. Chemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USA.
  6. RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan.
  7. RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA.
  8. Center for Nuclear Study, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan.
  9. New Mexico State University, Las Cruces, New Mexico 88003, USA.
  10. Abilene Christian University, Abilene, Texas 79699, USA.
  11. Columbia University, New York, New York 10027, USA and Nevis Laboratories, Irvington, New York 10533, USA.
  12. Kyoto University, Kyoto 606-8502, Japan.
  13. Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA.
  14. Vanderbilt University, Nashville, Tennessee 37235, USA.
  15. University of California-Riverside, Riverside, California 92521, USA.
  16. Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA.
  17. Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS-IN2P3, Route de Saclay, F-91128 Palaiseau, France.
  18. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  19. IHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino 142281, Russia.
  20. Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA.
  21. Florida Institute of Technology, Melbourne, Florida 32901, USA.
  22. University of New Mexico, Albuquerque, New Mexico 87131, USA.
  23. Baruch College, City University of New York, New York, New York 10010, USA.
  24. PNPI, Petersburg Nuclear Physics Institute, Gatchina, Leningrad region 188300, Russia.
  25. Institut fur Kernphysik, University of Muenster, D-48149 Muenster, Germany.
  26. Muhlenberg College, Allentown, Pennsylvania 18104-5586, USA.
  27. Yonsei University, IPAP, Seoul 120-749, Korea.
  28. Russian Research Center "Kurchatov Institute," Moscow 123098, Russia.
  29. University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.
  30. Chonbuk National University, Jeonju 561-756, Korea.
  31. Bhabha Atomic Research Centre, Bombay 400 085, India.
  32. Department of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden.
  33. Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305, Japan.
  34. ELTE, Eötvös Loránd University, H- 1117 Budapest, Pázmány P. s. 1/A, Hungary.
  35. Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Hungarian Academy of Sciences (Wigner RCP, RMKI) H-1525 Budapest 114, PO Box 49, Budapest, Hungary.
  36. Florida State University, Tallahassee, Florida 32306, USA.
  37. Georgia State University, Atlanta, Georgia 30303, USA.
  38. Universidade de São Paulo, Instituto de Física, Caixa Postal 66318, São Paulo CEP05315-970, Brazil.
  39. Iowa State University, Ames, Iowa 50011, USA.
  40. University of Maryland, College Park, Maryland 20742, USA.
  41. Charles University, Ovocný trh 5, Praha 1, 116 36 Prague, Czech Republic.
  42. Weizmann Institute, Rehovot 76100, Israel.
  43. Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA.
  44. Nagasaki Institute of Applied Science, Nagasaki-shi, Nagasaki 851-0193, Japan.
  45. University of Tennessee, Knoxville, Tennessee 37996, USA.
  46. Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  47. Department of Physics, Augustana College, Sioux Falls, South Dakota 57197, USA.
  48. Ewha Womans University, Seoul 120-750, Korea.
  49. Peking University, Beijing 100871, People's Republic of China.
  50. Physics Department, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan.
  51. Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan.
  52. Korea University, Seoul 136-701, Korea.
  53. KEK, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan.
  54. Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan.
  55. Myongji University, Yongin, Kyonggido 449-728, Korea.
  56. IPN-Orsay, Universite Paris Sud, CNRS-IN2P3, BP1, F-91406 Orsay, France.
  57. Hanyang University, Seoul 133-792, Korea.
  58. Waseda University, Advanced Research Institute for Science and Engineering, 17 Kikui-cho, Shinjuku-ku, Tokyo 162-0044, Japan.
  59. Helsinki Institute of Physics and University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland.
  60. Czech Technical University, Zikova 4, 166 36 Prague 6, Czech Republic.
  61. Science and Technology on Nuclear Data Laboratory, China Institute of Atomic Energy, Beijing 102413, People's Republic of China.
  62. Department of Physics, Tokyo Institute of Technology, Oh-okayama, Meguro, Tokyo 152-8551, Japan.
  63. Institute for Nuclear Research of the Russian Academy of Sciences, prospekt 60-letiya Oktyabrya 7a, Moscow 117312, Russia.
  64. Dapnia, CEA Saclay, F-91191 Gif-sur-Yvette, France.
  65. National Research Nuclear University, MEPhI, Moscow Engineering Physics Institute, Moscow, 115409, Russia.
  66. LPC, Université Blaise Pascal, CNRS-IN2P3, Clermont-Fd, 63177 Aubiere Cedex, France.
  67. Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Prague 8, Czech Republic.
  68. Department of Physics, Banaras Hindu University, Varanasi 221005, India.
  69. Seoul National University, Seoul, Korea.
  70. Physics Department, Lahore University of Management Sciences, Lahore, Pakistan.

PMID: 26024164 DOI: 10.1103/PhysRevLett.114.192301

Abstract

We present azimuthal angular correlations between charged hadrons and energy deposited in calorimeter towers in central d+Au and minimum bias p+p collisions at sqrt[s_{NN}]=200 GeV. The charged hadron is measured at midrapidity |η|<0.35, and the energy is measured at large rapidity (-3.7<η<-3.1, Au-going direction). An enhanced near-side angular correlation across |Δη|>2.75 is observed in d+Au collisions. Using the event plane method applied to the Au-going energy distribution, we extract the anisotropy strength v_{2} for inclusive charged hadrons at midrapidity up to p_{T}=4.5 GeV/c. We also present the measurement of v_{2} for identified π^{±} and (anti)protons in central d+Au collisions, and observe a mass-ordering pattern similar to that seen in heavy-ion collisions. These results are compared with viscous hydrodynamic calculations and measurements from p+Pb at sqrt[s_{NN}]=5.02 TeV. The magnitude of the mass ordering in d+Au is found to be smaller than that in p+Pb collisions, which may indicate smaller radial flow in lower energy d+Au collisions.

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