volume SHGM. Our studies suggest that the collective flow plays an important role in describing $E_{T}/N_{ch}$ and it could be one of the possible parameters to explain the jump observed in $E_{T}/N_{ch}$ from RHIC to LHC energies. Predictions for the LHC measurements at $\sqrt{s_{NN}}$ = 5.02 TeV are given.'
author:
- Swatantra Kumar Tiwari
- 'Raghunath Sahoo[^1]'
title: 'Transverse Energy per Charged Particle in Heavy-Ion Collisions: Role of Collective Flow'
---

Introduction
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The transverse energy and charged particle multiplicity at midrapidity are one of the first measurements done in heavy-ion collision experiments at (ultra)relativistic energies, as global observables to characterize the system formed in these collisions. These two are very important observables, as they are directly associated with the collision geometry and collision energy. Heavy-ion collisions at AGS, SPS, RHIC and LHC energies aim to produce a partonic phase of matter and study the Quantum Chromodynamics (QCD) deconfinement transition and explore/scan the QCD phase diagram for a possible location of the critical point (CP), by controlling the temperature and baryochemical potential by changing the collision species/centrality and collision energy. In these efforts the future facilities like CBM experiment at FAIR energies ($E_{lab}$ : 10 AGeV-40 AGeV) and the LHC 