Saturation and Scaling of Multiplicity, Mean p_T and p_T Distributions from 200 GeV < sqrt{s} < 7 TeV - Addendum

TL;DR

This paper demonstrates that CMS data on multiplicity and transverse momentum distributions at various energies align on a universal curve when scaled appropriately, supporting the saturation scale Q_sat(s) hypothesis and geometric scaling in high-energy collisions.

Contribution

It confirms that recent CMS data follow geometric scaling with a universal curve across different energies, validating the saturation scale model.

Findings

CMS data at different energies fall on a universal scaling curve

Supports the saturation scale Q_sat(s) hypothesis

Validates geometric scaling in high-energy particle collisions

Abstract

In the previous paper we have argued that the LHC data on multiplicity, average transverse momentum, and charged particle transverse momentum distributions are well described with minimal modeling in terms of a saturation scale Q_sat(s). As a consequence, the p_T spectra should exhibit geometric scaling. In this short note we show that recently released CMS data at sqrt{s}=0.9, 2.36 and 7 TeV fall on a universal curve when plotted in terms of suitably defined scaling variable \tau.