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Akiba, Y; Alexander, J; Appelt, E; Atomssa, E T; Basye, A T; Baublis, V; Baumann, C; Bhom, J H; Brooks, M L; Bunce, G; Caringi, A; Cianciolo, V; Dairaku, S; Das, K; Datta, A; Donadelli, M; Drees, A; Drees, K A; D'Orazio, L; Ellinghaus, F; Fields, D E; Frawley, A D; Gal, C; Garishvili, I; Glenn, A; Gong, X; Greene, S V; Hill, J C; Homma, K; Ikeda, Y; Ivanischev, D; John, D; Joo, K S; Kajihara, F; Kaneti, S; Kang, J S; Kapustinsky, J; Karatsu, K; Khanzadeev, A; Kikuchi, J; Kim, A; Kim, B I; Kistenev, E; Kotov, D; Kunde, G J; Maguire, C F; Manko, V I; McKinney, C; Means, N; Mibe, T; Milov, A; Morrison, D P; Murakami, T; Murata, J; Nagamiya, S; Naglis, M; Nakagawa, I; Nakamura, K R; Nyanin, A S; Ogilvie, C A; Ouchida, M; Park, B H; Park, S K; Patel, L; Peressounko, D Yu; Petti, R; Proissl, M; Ravinovich, I; Read, K F; Rembeczki, S; Rosendahl, S S E; Sakaguchi, T; Sano, S; Sato, T; Seidl, R; Seto, R; Shigaki, K; Shim, H H; Shoji, K; Silvestre, C; Slunečka, M; Sondheim, W E; Sourikova, I V; Stankus, P W; Stenlund, E; Sugitate, T; Themann, H; Tomášek, M; Torii, H; Tserruya, I; Vértesi, R; Vrba, V; Vznuzdaev, E; Watanabe, Y; Wei, F; Wysocki, M; Yamaguchi, Y L; Yokkaichi, S; Yoo, J S; Zajc, W A
Physical review letters, 2015-May-15, Volume: 114, Issue: 19Journal Article
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 sqrts_{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 sqrts_{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.
