Jets and high $p_T$ hadrons in dense matter: recent results from STAR

Details Jets and high $p_T$ hadrons in dense matter: recent results from STAR Jets and high $p_T$ hadrons in dense matter: recent results from STAR

2003-08-22

arxiv.org/abs/nucl-ex/0308023v1

AIP Conf.Proc.698:667-672,2004

Physics

Nuclear Physics

Nuclear Experiment

6 pages, 5 figures, joint proceedings for the CIPANP '03 Conference

Scientific paper

10.1063/1.1664324

We review recent measurements of high transverse momentum (high $p_T$) hadron production in nuclear collisions by the STAR Collaboration at RHIC. The previously observed suppression in central Au+Au collisions has been extended to much higher $p_T$. New measurements from d+Au collisions are presented which help disentangle the mechanisms responsible for the suppression. Inclusive single hadron spectra are enhanced in d+Au relative to p+p, while two-particle azimuthal distributions are observed to be similar in p+p, d+Au and peripheral Au+Au collisions. The large suppression of inclusive hadron production and absence of the away-side jet-like correlations in central Au+Au collisions are shown to be due to interactions of the jets with the very dense medium produced in these collisions.

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