Measurement of emission-angle anisotropy via long-range angular correlations with high-pT hadrons in d plus Au and p plus p collisions at root s(NN)=200 GeV

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http://hdl.handle.net/10138/246124

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PHENIX Collaboration , Adare , A , Kim , D J , Novitzky , N & Rak , J 2018 , ' Measurement of emission-angle anisotropy via long-range angular correlations with high-pT hadrons in d plus Au and p plus p collisions at root s(NN)=200 GeV ' , Physical Review C , vol. 98 , no. 1 , 014912 . https://doi.org/10.1103/PhysRevC.98.014912

Julkaisun nimi: Measurement of emission-angle anisotropy via long-range angular correlations with high-pT hadrons in d plus Au and p plus p collisions at root s(NN)=200 GeV
Tekijä: PHENIX Collaboration; Adare, A.; Kim, D. J.; Novitzky, N.; Rak, J.
Muu tekijä: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
Päiväys: 2018-07-26
Kieli: eng
Sivumäärä: 16
Kuuluu julkaisusarjaan: Physical Review C
ISSN: 2469-9985
URI: http://hdl.handle.net/10138/246124
Tiivistelmä: We present measurements of two-particle angular correlations between high-transverse-momentum (2 <pT <11 GeV/c) pi(0) observed at midrapidity (|eta| <0.35) and particles produced either at forward (3.1 <eta <3.9) or backward (-3.7 <eta <-3.1) rapidity in d + Au and p + p collisions at root s(NN) = 200 GeV. The azimuthal angle correlations for particle pairs with this large rapidity gap in the Au-going direction exhibit a characteristic structure that persists up to pT approximate to 6 GeV/c and which strongly depends on collision centrality, which is a similar characteristic to the hydrodynamical particle flow in A + A collisions. The structure is absent in the d-going direction as well as in p + p collisions, in the transverse-momentum range studied. The results indicate that the structure is shifted in the Au-going direction toward more central collisions, similar to the charged-particle pseudorapidity distributions.
Avainsanat: HEAVY-ION COLLISIONS
ROOT-S-NN=200 GEV
FLOW
TEV
114 Physical sciences
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