Exact vector channel sum rules at finite temperature
ORAL
Abstract
The thermal behavior of the spectral function of the electromagnetic current plays an important
role since it contains the full information on the dilepton/photon production rate, the electrical conductivity, and the modification of the spectral properties of vector mesons at finite temperature.
In this presentation, we report on the derivation of multiple exact sum rules of this spectral function
both with zero and non-zero momentum [1,2].
We demonstrate that the sum rules are satisfied in the weak coupling regime and discuss how the
sum rules can be used to determine certain transport coefficients and how they can be applied
to spectral fits to lattice QCD data.
[1] P. Gubler and D. Satow, Phys. Rev. D 94, 094042 (2016).
[2] P. Gubler and D. Satow, Phys. Rev. D 96, 114028 (2017).
role since it contains the full information on the dilepton/photon production rate, the electrical conductivity, and the modification of the spectral properties of vector mesons at finite temperature.
In this presentation, we report on the derivation of multiple exact sum rules of this spectral function
both with zero and non-zero momentum [1,2].
We demonstrate that the sum rules are satisfied in the weak coupling regime and discuss how the
sum rules can be used to determine certain transport coefficients and how they can be applied
to spectral fits to lattice QCD data.
[1] P. Gubler and D. Satow, Phys. Rev. D 94, 094042 (2016).
[2] P. Gubler and D. Satow, Phys. Rev. D 96, 114028 (2017).
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Presenters
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Philipp Gubler
ASRC,JAEA, JAEA
Authors
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Philipp Gubler
ASRC,JAEA, JAEA
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Daisuke Satow
Arithmer Inc.