Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2007-04-07
Phys.Rev.C75:054913,2007
Physics
Nuclear Physics
Nuclear Experiment
10 pages, 10 figures, submitted to Phys. Rev. C
Scientific paper
10.1103/PhysRevC.75.054913
We present results on two-particle angular correlations in proton-proton collisions at center of mass energies of 200 and 410 GeV. The PHOBOS experiment at the Relativistic Heavy Ion Collider has a uniquely large coverage for charged particles, giving the opportunity to explore the correlations at both short- and long-range scales. At both energies, a complex two-dimensional correlation structure in $\Delta \eta$ and $\Delta \phi$ is observed. In the context of an independent cluster model of short-range correlations, the cluster size and its decay width are extracted from the two-particle pseudorapidity correlation function and compared with previous measurements in proton-proton and proton-antiproton collisions, as well as PYTHIA and HIJING predictions.
Alver B.
the PHOBOS Collaboration
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