PoS - Proceedings of Science
Volume 350 - 7th Annual Conference on Large Hadron Collider Physics (LHCP2019) - Posters
ALICE data in the framework of the Color String Percolation Model
A.N. Mishra,* E. Cuatle Flores, G. Paic, C. Pajares, R. Scharenberg, B. Srivastava
*corresponding author
Full text: pdf
Pre-published on: September 27, 2019
Published on: December 04, 2019
Abstract
Possible phase transition of strongly interacting matter from hadron to a quark-gluon plasma
state have in the past received considerable interest. The clustering of color sources provides
a framework of the partonic interactions in the initial stage of the collisions. The onset of de-
confinement transition is identified by the spanning percolation cluster in 2D percolation. In
the present work we have analyzed the transverse momentum spectra of charged particles in
high multiplicity pp collisions at LHC energies $\sqrt{s}=05.02$ and 13 TeV published by the ALICE
Collaboration using the Color String Percolation Model (CSPM). For heavy ions $PbPb$ at $\sqrt{^s{NN}}$
= 2.76 and 5.02 TeV along with $X_eX_e$ at $\sqrt{^s{NN}}$ = 5.44 TeV have been analyzed.
The thermodynamical quantities, the temperature, energy density, and the shear viscosity to en-
tropy density ratio (η/s) are obtained. It was observed that the inverse of (η/s) represents the
trace anomaly ∆ = (ε − 3P)/$T^4$ . Results are in agreement with the Lattice Quantum Chromo
Dynamics(LQCD) simulations. Thus the clustering of color sources has a clear physical basis
although it cannot be deduced directly from QCD.
DOI: https://doi.org/10.22323/1.350.0004
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