Decoupling in QED and QCD

Abstract

Decoupling of a heavy flavour in QCD is discussed in a pedagogical way. First we consider a simpler case: decoupling of muons in QED. All calculations are done up to 2 loops.

Lecture at 5-th Helmholtz international summer school Calculations for modern and future colliders Dubna, July 23 -- August 2, 2012, 21 pages

References in corpus (4)

• RunDec: a Mathematica package for running and decoupling of the strong coupling and quark masses
• QCD Decoupling at Four Loops
• The Large Quark Mass Expansion of Gamma (Z^0 -> hadrons) and Gamma(tau^- -> nu_tau + hadrons) in the Order alpha_s^3
• Strong-Coupling Constant with Flavor Thresholds at Five Loops in the MS-bar Scheme

Cited by in corpus (6)

• Model Independent Evolution of Transverse Momentum Dependent Distribution Functions (TMDs) at NNLL
• $B^0$-${\bar{B}}^0$ mixing: matching to HQET at NNLO
• How the QCD trace anomaly behaves at the core of twin stars?
• One-Loop Matching Conditions in Neutrino Effective Theory
• On the electroweak contribution to the matching of the strong coupling constant in the SM
• Matching the heavy-quark fields in QCD and HQET at four loops