Multipion coherent effects in high energy heavy-ion collisions

TL;DR

This paper predicts that coherent multipion production in high energy heavy-ion collisions leads to narrower momentum distributions, enhanced pseudorapidity, increased average multiplicity, and oscillations in multiplicity distributions at RHIC energies.

Contribution

It introduces a classical current model to describe multipion production, highlighting strong coherent effects not previously detailed in this context.

Findings

Narrowing of pion momentum distributions at RHIC energies

Enhanced large pseudorapidities and a bump in the distribution

Oscillations in the multiplicity distribution due to coherence

Abstract

Multipion production in high energy nucleus-nucleus collisions is considered in the model of the pion radiation by classical current. Strong coherent effects of narrowing of pion longitudinal and transverse momenta distributions are predicted at the RHIC energy. The coherence enhances the large pseudorapidities producing the bump in the distribution. The growth of the average pion multiplicity and the oscillation effect in the multiplicity distribution are caused by the coherence as well.