Abstract

The CMS heavy-ion program will probe QCD matter under extreme conditions. Its capabilities for the study of global observables and soft probes are described.

Highlights

  • The CMS experiment at the LHC is a general purpose detector designed to explore physics at the TeV energy scale

  • The acceptance is further extended with forward detectors (|η| < 6.8)

  • In order to reject non-collision events, such as those due to beam-gas collisions, the interaction trigger could require a coincidence of signals from both hadronic forward (HF) calorimeters

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Summary

Introduction

The CMS experiment at the LHC is a general purpose detector designed to explore physics at the TeV energy scale. It has a large acceptance and hermetic coverage. The various subdetectors are: a silicon tracker with pixels and strips (|η| < 2.4); electromagnetic (|η| < 3) and hadronic (|η| < 5) calorimeters; and muon chambers (|η| < 2.4). The acceptance is further extended with forward detectors (|η| < 6.8). CMS detects leptons and both charged and neutral hadrons. In the following the CMS soft physics capabilities are described. For a recent extensive review see Ref. 1

Minimum bias trigger
Centrality determination
Charged particle multiplicity
Low pT tracking
Identified particles
Elliptic flow
Findings
Summary
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