Long-range pseudorapidity dihadron correlations in d+Au collisions at snn=200GeV (CROSBI ID 225193)
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Adamczyk, L. ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ...
engleski
Long-range pseudorapidity dihadron correlations in d+Au collisions at snn=200GeV
Dihadron angular correlations in d+Au collisions at View the MathML source are reported as a function of the measured zero-degree calorimeter neutral energy and the forward charged hadron multiplicity in the Au-beam direction. A finite correlated yield is observed at large relative pseudorapidity (Δη ) on the near side (i.e. relative azimuth Δϕ∼0 ). This correlated yield as a function of Δη appears to scale with the dominant, primarily jet-related, away-side (Δϕ∼π ) yield. The Fourier coefficients of the Δϕ correlation, Vn=〈cosnΔϕ〉 , have a strong Δη dependence. In addition, it is found that V1 is approximately inversely proportional to the mid-rapidity event multiplicity, while V2 is independent of it with similar magnitude in the forward (d- going) and backward (Au-going) directions.
STAR ; correlations
STAR Collaboration.
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