Soft-collinear effective theory for hadronic and nuclear collisions: The evolution of jet quenching from RHIC to the highest LHC energies

TL;DR

This paper uses soft-collinear effective theory with Glauber gluons to predict hadron suppression and jet modifications in heavy-ion collisions at RHIC and LHC energies, enhancing understanding of jet quenching phenomena.

Contribution

It introduces a systematic approach to model in-medium parton shower evolution and jet shape modification, providing quantitative predictions for various collision energies and observables.

Findings

Predicted inclusive hadron suppression at RHIC and LHC energies.

Analyzed jet attenuation dependence on centrality and radius R.

Provided predictions for photon-tagged jet cross sections and shapes.

Abstract

In the framework of soft-collinear effective theory with Glauber gluons, results and predictions for inclusive hadron suppression, based upon in-medium parton shower evolution, are presented for Au+Au and Pb+Pb collisions at RHIC and LHC energies $\sqrt{s}=200$ AGeV and $\sqrt{s}=2.76, \, 5.1$ ATeV, respectively. The $\rm SCET_G$ medium-induced splitting kernels are further implemented to evaluate the attenuation of reconstructed jet cross in such reactions and to examine their centrality and radius $R$ dependence. Building upon a previously developed method to systematically resum the jet shape at next-to-leading logarithmic accuracy, a quantitative understanding of the jet shape modification measurement in Pb+Pb collisions at $\sqrt{s}=2.76$ ATeV at the LHC can be achieved. Predictions for photon-tagged jet cross sections and shapes, that can shed light on the parton flavor dependence of in-medium parton shower modification, are also given.