2–8 Nov 2025
TIFR Mumbai
Asia/Kolkata timezone

Strong coupling constant from the static energy

3 Nov 2025, 16:40
20m
AG77

AG77

Speaker

Viljami Leino

Description

The strong coupling constant $\alpha_s$ can be obtained from the static energy. For short distances, the static energy can be calculated both on the lattice, with the use of Wilson line correlators, and with the perturbation theory up to three loop accuracy with leading ultrasoft log resummation. Comparing lattice data with the perturbative expression allows for a precise measurement of the $\alpha_s$. In this talk, we will update the TUMQCD 2+1-flavor $\alpha_s$-extraction and report on the progress with the 2+1+1 extraction.

Parallel Session (for talks only) Standard Model parameters

Author

Co-authors

Alexei Bazavov (Michigan State University) Nora brambilla Andreas Kronfeld (Fermi National Accelerator Lab. (US)) Julian Mayer-Steudte Peter Petreczky Sipaz Sharma (TUM) Mr Sebastian Steinbeißer (LRZ) Antonio Vairo Dr Johannes Heinrich Weber (Technische Universität Darmstadt)

Presentation materials

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