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