Work

Novel approach to a fast calculation of high-order Q cumulants

Year: 2025

Type: article

Abstract: The method of Q cumulants has been shown as a powerful tool to study the fine details of the azimuthal anisotropies in high-energy nucleus-nucleus collisions. A new method for the fast calculation of arbitrary order Q -cumulant v n { 2 k } values, based on the partition of a non-negative integer l ≤ m for calculation of the 2 m -particle azimuthal correlations is presented in this paper. Unlike the standard Q -cumulants method in which the calculation of high-order multiparticle calculations is impractical, the newly proposed method enables easy calculation. The validity of the method is proven via a toy model that uses the elliptic power distribution to simulate anisotropic emission of particles. The method enables the study of fine details of the v 2 distribution, such as higher-order central moments of the v 2 distribution, as well as the hydrodynamic behavior of the quark-gluon plasma.

Source: Physical Review C

DOI: 10.1103/ycxy-lwqd

Authors: L. Nađđerđ, J. Milošević, D. Devetak, F. Wang, X. Zhu

Institutions: Huzhou Normal University, University of Belgrade, Vinča Institute of Nuclear Sciences, Purdue University West Lafayette

Language: English

Topic: High-Energy Particle Collisions Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: U.S. Department of Energy, National Natural Science Foundation of China, Joint Institute for Nuclear Research

Awards: G8017043472, G8182825990, G8746637639, STUDY QCD MATTER UNDER EXTREME CONDITIONS BY PARTICLE CORRELATION AND HEAVY FLAVOR PROBES IN RELATIVISTIC HEAVY ION COLLISIONS