26 July 2026 to 1 August 2026
University of Maryland, College Park
US/Eastern timezone

Determination of the strong coupling from gradient flow

28 Jul 2026, 14:40
20m
Thurgood Marshall (Adele H. Stamp Student Union)

Thurgood Marshall

Adele H. Stamp Student Union

3972 Campus Dr, College Park, MD 20742
Contributed talk Standard-Model parameters Standard-Model parameters

Speaker

Curtis Peterson (Michigan State University)

Description

The strong coupling $\alpha_{\mathrm{s}}(m_{Z})$ at the pole mass $m_{Z}$ of the $Z$ boson is a fundamental parameter of the Standard Model. I discuss ongoing efforts targeting a precise determination of the strong coupling from the continuous (infinite volume) gradient flow $\beta$-function using the highly improved staggered quark (HISQ) action.

Author

Curtis Peterson (Michigan State University)

Co-authors

Aida El-Khadra (University of Illinois Urbana-Champaign) Akhil Chauhan (University of Illinois Urbana Champaign) Alexei Bazavov (Michigan State University (US)) Andreas Kronfeld (Fermi National Accelerator Lab. (US)) Anna Hasenfratz CARLETON DETAR (University of Utah) Ethan Neil Dr James Simone (Fermilab) Leon Hostetler (Michigan State University) Mingwei Dai (University of Illinois Urbana-Champaign) Steven Gottlieb (Indiana University) Mr Yash Mandlecha (Michigan State University)

Presentation materials