High-density QCD with CMS at the LHC
David d'Enterria (for the CMS collaboration)
TL;DR
This paper reviews CMS experiment capabilities at the LHC for heavy-ion physics, covering measurements from bulk properties to high-pT processes, providing insights into the quark-gluon plasma at high density.
Contribution
It summarizes CMS's potential to explore dense QCD matter through various measurements in Pb-Pb collisions at 5.5 TeV, highlighting new experimental approaches.
Findings
Measurement of charged hadron multiplicity and elliptic flow
Observation of high-pT hadrons and jets
Tomographic insights into dense QCD phases
Abstract
The capabilities of the CMS experiment to explore the rich heavy-ion physics programme offered by the CERN Large Hadron Collider (LHC) are summarised. Various representative measurements in Pb-Pb collisions at sqrt(s) = 5.5 TeV are covered. These include "bulk" observables (charged hadron multiplicity, low-pT inclusive hadron spectra and elliptic flow) which provide information on the collective properties of the system; as well as perturbative processes (high-pT hadrons, jets, gamma-jet and quarkonium production) which yield "tomographic" information of the densest phases of the reaction.
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