Quark Matter 2018

Systematic Studies of Jet-medium Interactions in STAR

16 May 2018, 10:20

20m

Sala Perla, 1st Floor (Palazzo del Casinò)

Parallel Talk Jet modifications and high-pT hadrons Jet modifications and high-pT hadrons

Speaker

Kun Jiang (University of Science and Technology of China and Purdue University)

Description

Recent STAR's jet physics results in heavy-ion collisions will be reported in this talk. Coincidence measurements of semi-inclusive jets recoiling from high-$p_T$ hadrons or direct photons will be presented to offer constraints on path length and flavor dependence of energy loss. Di-jets selected with a constituent cut of 2 GeV/$c$ showed significant transverse momentum imbalance which could be recovered from soft constituents to the level of p+p collisions within the original $R=0.4$ cone. Di-hadron correlation measurements with a method to subtract all orders of flow background using data themselves will also be presented to study how the lost energy is redistributed at low to modest $p_T$. We will contextualize and discuss recent and new systematic studies of jet coincidence and correlation measurements at STAR, taking advantage of the tenfold increase in statistics from recent data taking runs.

Presentation materials

QM18_0516_2018_Kun.pdf