Signal of partial U_A(1) symmetry restoration from two-pion Bose-Einstein correlations
T. Csorgo, D. Kharzeev, S. E. Vance
TL;DR
This paper proposes that the intercept parameter of two-pion Bose-Einstein correlations can serve as an experimental indicator of partial U_A(1) symmetry restoration in ultra-relativistic nuclear collisions.
Contribution
It introduces a novel observable, the intercept parameter, as a measure of U_A(1) symmetry restoration in high-energy nuclear experiments.
Findings
Intercept parameter correlates with U_A(1) symmetry restoration
Provides a new experimental method for symmetry restoration detection
Enhances understanding of QCD phase transitions
Abstract
The intercept parameter of the two-pion Bose-Einstein correlation functions at low transverse momentum is shown to play the role of an experimentally accessible measure of the (partial) restoration of U_A(1) symmetry in ultra-relativistic nuclear collisions.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research