Baryon production probability via the nuclear configurational entropy

TL;DR

This paper investigates baryon production at high energies using the nuclear configurational entropy within the Color Glass Condensate framework, revealing a transition in production mechanisms and predicting key parameters with high accuracy.

Contribution

It introduces the use of nuclear configurational entropy to predict parameters governing gluon distributions and identifies a stability point in high-energy collisions.

Findings

NCE predicts the anomalous dimension parameters with 1.2-1.8% accuracy.

Transition from recombination to fragmentation in baryon production at high energy.

Matches HERA and RHIC data effectively.

Abstract

We study the net-baryon production at forward rapidities within the Color Glass Condensate paradigm. At high energy regime, the leading baryon production mechanism is shown to change from recombination to independent fragmentation. The nuclear configurational entropy (NCE) constructed upon forward scattering amplitudes, allows to predict the two free parameters that govern the anomalous dimension of the target gluon distribution. The global minimum of the NCE indicates a point of stability in pp/pA/AA collisions at LHC energies, corroborating and matching HERA data for hadron spectra measured in pp and dAu collisions at RHIC energies, with accuracy between 1.2\% and 1.8\%, respectively for the two free parameters.