Unraveling alignment pattern in high-energy particles via transverse momentum disbalance analysis

TL;DR

This paper investigates the origin of alignment patterns in high-energy cosmic ray particles, demonstrating that such alignments can result from transverse momentum conservation in nucleus-nucleus collisions, as modeled by HYDJET++.

Contribution

It provides a simulation-based analysis linking observed alignment patterns to transverse momentum disbalance, offering a new explanation for cosmic ray alignment phenomena.

Findings

High alignment can occur in nucleus-nucleus interactions.

Alignment correlates with transverse momentum disbalance.

Simulation supports the momentum conservation hypothesis.

Abstract

The hypothesis of the relation between strong azimuthal correlations, known as alignment, in families of hadrons and photons observed in cosmic ray experiments and the selection procedure of the highest-energy particles together with the transverse momentum conservation are tested in the framework of the HYDJET++ model. The results show that the high degree of alignment can appear in nucleus-nucleus interactions at reasonable values of the transverse momentum disbalance of most energetic detected particles.