Volume 320 - 12th International Workshop on High-pT Physics in the RHIC/LHC Era (High-pT2017) - High pT parton propagation in matter
High-$p_T$ parton propagation and quenching in the medium
K. Tywoniuk
Full text: pdf
Pre-published on: June 20, 2019
Published on: October 09, 2019
Abstract
Jet quenching stands out as one of the most striking phenomena measured in heavy-ion collisions. After being discovered at RHIC as a suppression of high-$p_T$ hadrons, with the development of reconstruction techniques capable of dealing with large backgrounds, it has also been confirmed in a wide range of measurements involving fully reconstructed jets. The observed suppression patterns are generally understood as arising from interactions with a color deconfined medium, corroborating the role of jets as probes of the hot and dense matter created in ultrarelativistic heavy-ion collisions. In this proceeding, we report on recent theoretical developments related to how jet fragmentation inside the medium is affected by energy-loss processes. In particular, it is shown how a novel Sudakov suppression factor affects the single-inclusive jet spectrum at high-$p_T$. These developments provide first steps toward a unified theoretical understanding of the quenching of hadrons and jets, accompanied by substructure modifications.
DOI: https://doi.org/10.22323/1.320.0011
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