Work

Finite temperature sum rules in the vector channel at finite momentum

Year: 2017

Type: article

Abstract: Exact sum rules for the longitudinal and transverse part of the vector channel spectral functions at nonzero momentum are derived in the first part of the paper. The sum rules are formulated for the finite temperature spectral functions, from which the vacuum component has been subtracted, and represent a generalization of previous work in which sum rules were derived only for the zero-momentum limit. In the second part of the paper, we demonstrate how the sum rules can be used as constraints in spectral fits to lattice data at various temperatures, with the latest dynamical lattice quantum chromodynamics data at zero momentum.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.96.114028

Authors: Philipp Gubler, Daisuke Satow

Institutions: Japan Atomic Energy Agency, Keio University, Advanced Science Research Center, Goethe University Frankfurt

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Ministry of Education, Culture, Sports, Science and Technology

Award: G5168649240