Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2011-02-14
Phys.Rev.C83:061901,2011
Physics
Nuclear Physics
Nuclear Experiment
By the STAR Collaboration. 6 pages, 2 figures
Scientific paper
10.1103/PhysRevC.83.061901
We report first results from an analysis based on a new multi-hadron correlation technique, exploring jet-medium interactions and di-jet surface emission bias at RHIC. Pairs of back-to-back high transverse momentum hadrons are used for triggers to study associated hadron distributions. In contrast with two- and three-particle correlations with a single trigger with similar kinematic selections, the associated hadron distribution of both trigger sides reveals no modification in either relative pseudo-rapidity or relative azimuthal angle from d+Au to central Au+Au collisions. We determine associated hadron yields and spectra as well as production rates for such correlated back-to-back triggers to gain additional insights on medium properties.
Jr.
Washington Carvalho Jr.
Agakishiev H.
Aggarwal Madan M.
Ahammed Zubayer
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