Collectivity in high-multiplicity events of proton-proton collisions in the framework of String Percolation

TL;DR

This paper investigates high-multiplicity proton-proton collisions at various energies using the String Percolation Model, demonstrating the formation of a strongly interacting collective medium in such events.

Contribution

It applies the String Percolation Model to high-energy p-p collisions, showing the emergence of collective behavior and low shear viscosity to entropy density ratios.

Findings

Evidence of collective medium formation in high-multiplicity events

Low $\\eta/s$ ratios indicating strongly interacting matter

Model consistency across different collision energies

Abstract

We analyze high multiplicity proton-proton ($pp$) collision data at the energies $\sqrt{s}=900$ GeV, $2.76$ TeV and $7$ TeV in the framework of the String Percolation Model (SPM) in terms of the ratio of shear viscosity and entropy density ($\eta/s$) showing that the model allows the formation of strongly interacting collective medium in the high energy and high multiplicity events in p-p collisions.