PoS - Proceedings of Science
Volume 430 - The 39th International Symposium on Lattice Field Theory (LATTICE2022) - Non-zero Temperature
Photon and dilepton production rate in the quark-gluon plasma from lattice QCD
H.B. Meyer*, M. Cè, T. Harris, A. Krasniqi and C. Török
Full text: pdf
Pre-published on: January 27, 2023
Published on: April 06, 2023
The photon emissivity of the quark-gluon plasma (QGP) is an important
input to predict the photon yield in heavy-ion collisions,
particularly for transverse momenta in the range of 1 to 2 GeV.
Photon production in the QGP can be probed non-perturbatively in
lattice QCD via (Euclidean) time-dependent correlators. Analyzing the
spatially transverse channel, as well as the difference of the
transverse and longitudinal channels as a consistency check, we
determine the photon emissivity based on continuum-extrapolated
correlators in two-flavour QCD. Estimates of the lepton-pair
production rate can be derived by combining the two aforementioned
DOI: https://doi.org/10.22323/1.430.0186
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