Pure gauge flux tube and running coupling from EMT at high temperature Enkhtuya Galsandorj, Sodbileg Chagdaa and Munkhzaya Batgerel Eur. Phys. J. A, 60 5 (2024) 113 Published online: 24 May 2024 DOI: 10.1140/epja/s10050-024-01328-0