Abstract Quark–Gluon Plasma (QGP), a QCD state of matter created in ultra-relativistic
heavy-ion collisions, has remarkable properties including, for example, a low shear viscosity …

We review the current status of jet measurements in heavy-ion collisions at the Large
Hadron Collider (LHC) and the Relativistic Heavy Ion Collider (RHIC). We discuss how the …

The performance is presented of the reconstruction and identification algorithms for
electrons and photons with the CMS experiment at the LHC. The reported results are based …

Jet substructure has emerged to play a central role at the Large Hadron Collider (LHC),
where it has provided numerous innovative new ways to search for new physics and to …

In this review, we provide an up-to-date account of quantitative bottom-up holographic
descriptions of the strongly coupled quark-gluon plasma (QGP) produced in relativistic …

The Λ (Λ¯) hyperon polarization along the beam direction has been measured in Au+ Au
collisions at s NN= 200 GeV, for the first time in heavy-ion collisions. The polarization …

Jet quenching in high-energy heavy-ion collisions can be used to probe properties of hot
and dense quark–gluon plasma. We provide a brief introduction to the concept and …

During 2015 the ATLAS experiment recorded\(3.8\,{\mathrm {fb}}^{-1}\) of proton–proton
collision data at a centre-of-mass energy of\(13\,{\mathrm {TeV}}\). The ATLAS trigger system …

Direct photon production at mid-rapidity in Pb–Pb collisions at s NN= 2.76 TeV was studied
in the transverse momentum range 0.9< p T< 14 GeV/c. Photons were detected with the …

Abstract This White Paper presents an overview of the current status and future perspective
of QCD research, based on the community inputs and scientific conclusions from the 2022 …