Dilepton production from the quark-gluon plasma using leading-order (3+1)D anisotropic hydrodynamics

TL;DR

This paper calculates dilepton production from the quark-gluon plasma using advanced anisotropic hydrodynamics, revealing that high-energy dilepton spectra can probe the plasma's early momentum-space anisotropy.

Contribution

It introduces a leading-order (3+1)D anisotropic hydrodynamics framework to study dilepton yields, linking high-energy dilepton spectra to initial plasma anisotropy.

Findings

High-energy dilepton spectrum is sensitive to initial anisotropy.

Potential to constrain early-time plasma anisotropy using dilepton data.

Abstract

Dilepton production from the quark-gluon plasma (QGP) phase of ultra-relativistic heavy-ion collisions is computed using the leading-order (3+1)-dimensional anisotropic hydrodynamics. It is shown that high-energy dilepton spectrum is sensitive to the initial local-rest-frame momentum-space anisotropy of the QGP. Our findings suggest that it may be possible to constrain the early-time momentum-space anisotropy in relativistic heavy-ion collisions using high-energy dilepton yields.