Journal article

Publication year: 2021

Journal: Physical Review D

Volume number: 103

Issue number: 3

ISSN: 2470-0010

eISSN: 2470-0029

Open access status: Hybrid

DOI Link: https://doi.org/10.1103/PhysRevD.103.034023

Publisher: American Physical Society

Abstract: 
Reliably computing the free energy in a gauge theory like QCD is a challenging and resource-demanding endeavor. We explore the possibility to obtain the associated thermodynamic anomaly from two-point functions based on a conjectured relation. This conjecture is triggered by the relation to the Tan contact in condensed matter systems. For this investigation we use state-of-the-art results for the Yang-Mills gluon two-point function from the lattice and the functional renormalization group, as well as novel Dyson-Schwinger results at (mite temperature computed in the present work. This allows for a first, qualitative, test of this conjecture. The results from all methods reveal the same nontrivial temperature behavior of the subleading large momentum dependence of the gluon propagator relevant for the conjectured relation. The comparison with the expected behavior for SU(2) Yang-Mills theory is encouraging to further pursue this approach.

Harvard Citation style: Hajizadeh, O., Huber, M., Maas, A. and Pawlowski, J. (2021) Exploring the Tan contact term in Yang-Mills theory, Physical Review D, 103(3), Article 034023. https://doi.org/10.1103/PhysRevD.103.034023

APA Citation style: Hajizadeh, O., Huber, M., Maas, A., & Pawlowski, J. (2021). Exploring the Tan contact term in Yang-Mills theory. Physical Review D. 103(3), Article 034023. https://doi.org/10.1103/PhysRevD.103.034023