26–28 Jun 2023
SLAC National Accelerator Laboratory
US/Pacific timezone

Conformal Window for Asymptotic Safety up to Four Loops

28 Jun 2023, 16:10
25m
Kavli Auditorium (SLAC National Accelerator Laboratory)

Kavli Auditorium

SLAC National Accelerator Laboratory

2575 Sand Hill Rd, Menlo Park, CA 94025, United States

Speaker

Tom Steudtner

Description

In this talk I present our high-precision estimate for the conformal window of the interacting UV fixed point in the Litim-Sannino model.
Four loop gauge, three loop Yukawa and three loop quartic beta functions are determined both by a direct loop calculation and by generalizing existing literature results.
The UV fixed point and corresponding critical exponents are determined at N$^3$LO in the conformal expansion. Several approaches to estimate the conformal window are applied, and the phenomena behind the disappearance of the fixed point are discussed.

Authors

Daniel Litim (University of Sussex) Dr Emmanuel Stamou (TU Dortmund) Nahzaan Riyaz (University of Sussex) Tom Steudtner

Presentation materials