Testing thermal photon and dilepton rates

Jackson, G.; Laine, M. (2019). Testing thermal photon and dilepton rates. Journal of High Energy Physics, 2019(11), p. 144. Springer 10.1007/JHEP11(2019)144

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We confront the thermal NLO vector spectral function (both the transverse and longitudinal channel with respect to spatial momentum, both above and below the light cone) with continuum-extrapolated lattice data (both quenched and with Nf = 2, at T ∼ 1.2Tc). The perturbative side incorporates new results, whose main features are summarized. The resolution of the lattice data is good enough to constrain the scale choice of αs on the perturbative side. The comparison supports the previous indication that the true spectral function falls below the resummed NLO one in a substantial frequency domain. Our results may help to scrutinize direct spectral reconstruction attempts from lattice QCD.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Jackson, Gregory Scott and Laine, Mikko Sakari

Subjects:

500 Science > 530 Physics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

21 Jan 2020 15:07

Last Modified:

21 Jan 2020 15:07

Publisher DOI:

10.1007/JHEP11(2019)144

ArXiv ID:

1910.09567

BORIS DOI:

10.7892/boris.138897

URI:

https://boris.unibe.ch/id/eprint/138897

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