High pT Hadron Spectra at RHIC: an Overview.

Klay, J. L.

Technical Information Center Oak Ridge Tennessee

关键词: Hadrons;    Brookhaven RHIC;    Quenching;    Bremsstrahlung;    Heavy ions;   

RP-ID  :  DE200515011585

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Recent results on high transverse momentum (pT) hadron production in p+p, d+Au and Au+Au collisions at the Relativistic Heavy Ion Collider (RHIC) are reviewed. Comparison of the nuclear modification factors, R(sub dAu)(pT) and R(sub AA)(pT), demonstrates that the large suppression in central Au+Au collisions is due to strong final-state effects. Theoretical models which incorporate jet quenching via gluon Bremsstrahlung in the dense partonic medium that is expected in central Au+Au collisions at ultra-relativistic energies are shown to reproduce the shape and magnitude of the observed suppression over the range of collision energies so far studied at RHIC.