Zeroing in on jet quenching: a PHENIX perspective

Abstract

We review recent progresses on jet quenching measurements by PHENIX. With increased statistics, PHENIX has gone beyond the single hadron suppression $R_{\mathrm{AA}}$, and made measurements on multiple jet quenching observables, such as $v_2$, $I_{\mathrm{AA}}$ and $v_2^{I_{\mathrm{AA}}}$. We argue that, by combining these observables together, one can achieve a better understanding of the energy loss mechanism. We present new $\gamma$-hadron correlation results with associated hadrons extended to low $p_T$; an enhancement has been observed, suggesting a contribution of genuine medium response that is relatively unbiased by the initial geometry fluctuations. The status of full jet reconstruction and future perspective of PHENIX jet quenching program are discussed.

9 pages, 11 figures, Proceedings for the 4th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions (Hard Probes 2010)

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Cited by in corpus (3)

• $\mathcal{O}({\alpha }_s^3)$ analysis of inclusive jet and di-jet production in heavy ion reactions at the Large Hadron Collider
• Medium-induced parton splitting kernels from Soft Collinear Effective Theory with Glauber gluons
• A study of the correlations between jet quenching observables at RHIC