High-pt hadron production and di-hadron azimuthal correlations from the STAR experiment
نویسندگان
چکیده
منابع مشابه
High Pt hadron-hadron correlations
We propose the formulation of a dihadron fragmentation function in terms of parton matrix elements. Under the collinear factorization approximation and facilitated by the cut-vertex technique, the two hadron inclusive cross section at leading order (LO) in e+ eannihilation is shown to factorize into a short distance parton cross section and the long distance dihadron fragmentation function. We ...
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High-pT hadron-hadron correlations have been measured with the PHENIX experiment in Cu + Cu and p + p collisions at √ sNN = 200 GeV. A comparison of the jet widths and yields between the two colliding systems allows us to study the medium effect on jets. We also present a first measurement of direct photon-hadron correlations in Au + Au and p + p collisions. We find that the near-side yields ar...
متن کاملγ-hadron azimuthal correlations in STAR
One of the most exciting results at RHIC is the suppression of hadrons in central Au+Au collisions, compared to p+p collisions [1] and to cold nuclear matter [2] at high pT . This suppression is well described by very different pQCD-based energy loss models in the light flavor sector [3] . However, the observation of a similar level of suppression for the heavy flavor [4], and the unexpected sm...
متن کاملDihadron fragmentation functions and high Pt hadron-hadron correlations
We propose the formulation of a dihadron fragmentation function in terms of parton matrix elements. Under the collinear factorization approximation and facilitated by the cut-vertex technique, the two hadron inclusive cross section at leading order (LO) in eeannihilation is shown to factorize into a short distance parton cross section and the long distance dihadron fragmentation function. We al...
متن کاملProbing Cold and Hot, Dense Nuclear Media Via High-pT Jets with Di-hadron and γ-hadron Correlations at PHENIX
With the recent high statistics Au+Au and Cu+Cu runs at RHIC, it has become possible to systematically study jet properties in several different colliding systems with potentially different final state interactions. In this talk we present results from high-pT di-hadron and γ-hadron correlations from p+p, d+Au, Cu+Cu, and Au+Au collisions where jets in vacuum, cold nuclear matter, and hot, dens...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2005
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/27/1/007