Jet quenching and medium response in high-energy heavy-ion collisions: a review

Abstract

Jet quenching has been used successfully as a hard probe to study properties of the quark-gluon plasma (QGP) in high-energy heavy-collisions at both the Relativistic Heavy-Ion Collider (RHIC) and the Large Hadron Collider (LHC). We will review recent progresses in theoretical and phenomenological studies of jet quenching with jet transport models. Special emphasis is given to effects of jet-induced medium response on a wide variety of experimental measurements and their implications on extracting transport properties of the QGP in heavy-ion collisions.

Azimuthal angle for boson-jet production in the back-to-back limit

“…It is a process relevant for many SM investigations (e.g. to control b-tagging for t t measurements [1]), and is an important process to investigate medium effects in heavy-ion collisions [2,3]. A thorough theoretical understanding of these processes is therefore of significant importance.…”

(3+1)-D viscous hydrodynamics CLVisc at finite net baryon density: identified particle spectra, anisotropic flows and flow fluctuations across BES energies

“…In the future, one may use this integrated model to test the equation of state with finite net baryon density [67,68,75]. Our realistic hydrodynamics simulation can also provide the temperature and flow (gradient) profiles of the QGP, which are important inputs for studying jet quenching [86][87][88][89][90][91][92] and the global/local polarizations [93][94][95][96][97][98][99][100][101][102][103] in relativistic heavy-ion collisions. To further improve our model, we may use dynamical initial conditions [58,104] and include pre-equilibrium evolution [56,57] in our event-by-event CLVisc hydrodynamics framework.…”

Imaging nuclear modifications on parton distributions with triple-differential dijet cross sections in proton-nucleus collisions

“…Utilizing the correspondence between y dijet and X B in Eq. (11), one can easily transform the dijet variable V (3) from {y dijet , E JJ T , p T,avg } to {X B , E JJ T , p T,avg }. The transformed cross sections as functions of X B , are plotted in the right-hand-side panel of Fig.…”

“…Due to the additional dynamics that bind nucleons together, the partonic structure of a large nucleus can obviously deviate from that of the free nucleons [3][4][5][6][7][8][9]. To exactly determine this deviation will not only help understand the interactions among bound nucleons, but also provide a baseline to precisely study other physics, such as the final-state jet quenching phenomena in hot and dense quark-gluon plasma in relativistic nucleus-nucleus collisions [10,11].…”