Speaker
Yash Mandlecha
(Graduate Research Assistant)
Description
Precise determination of the strong coupling, $\alpha_s$, at the electroweak scale $m_Z$ is crucial for high-energy phenomenology and precision QCD tests. We apply the continuous $\beta$-function method to four-flavor lattice QCD with highly improved staggered quarks. This approach defines the coupling via gradient flow and allows direct determination of the $\beta$-function in the infinite volume continuum limit. I will present the status of this program, focusing on the analysis pipeline and systematic tests. We examine our control over the chiral, infinite-volume, and continuum limits for the high-precision determination of $\alpha_s(m_Z)$.
| Parallel Session (for talks only) | Standard Model parameters |
|---|
Author
Yash Mandlecha
(Graduate Research Assistant)
Co-authors
Aida El-Khadra
(University of Illinois Urbana-Champaign)
Akhil Chauhan
(University of Illinois Urbana Champaign)
Alexei Bazavov
(Michigan State University)
Andreas Kronfeld
(Fermi National Accelerator Lab. (US))
Anna Hasenfratz
Carleton DeTar
(University of Utah)
Curtis Peterson
(Michigan State University)
Ethan Neil
Dr
James Simone
(Fermilab)
Leon Hostetler
(Indiana University)
Mingwei Dai
(University of Illinois Urbana-Champaign)
Steven Gottlieb
(Indiana University)
