Eur. Phys. J. C (2009) 61: 569-574
https://doi.org/10.1140/epjc/s10052-009-1007-1

Regular Article - Experimental Physics

Recent high-p _T results from STAR

Universiteit Utrecht, PO Box 80000, Utrecht, Netherlands

^* e-mail: m.vanleeuwen1@uu.nl

Received: 29 August 2008
Revised: 27 February 2009
Published online: 24 March 2009

Abstract

We present selected recent results of multi-hadron correlation measurements in azimuth and pseudorapidity at intermediate and high p _T in Au+Au collisions at , from the STAR experiment at RHIC. At intermediate p _T , measurements are presented that attempt to determine the origin of the associated near-side (small Δφ) yield at large pseudo-rapidity difference Δη that is found to be present in heavy ion collisions. In addition, results are reported on new multi-hadron correlation measures at high-p _T that use di-hadron triggers and multi-hadron cluster triggers with the goal to constrain the underlying jet kinematics better than in the existing measurements of inclusive spectra and di-hadron correlations.