• co-Conveners: Michael Begel, Stefan Hoeche, Michael Schmitt
• Email list: SNOWMASS-EF-05-PRECISION_QCD@FNAL.GOV
  • For instructions how to join an Email list refer to Energy Frontier/Communications

This topical group covers the following: physics with jet and jet substructure, calculations of higher-order effects and their impact on precision QCD physics, measurements of the strong coupling constant and its running, measurements of quark masses, PDF fits and PDF-sensitive measurements, W/Z(+jets) boson production, and techniques to improve accuracy of future MC event generators.

There is a tight synergy with other groups, including EF06 and EF07.

If you have a topic you feel would be of interest to the group, please contact the conveners: s-hoeche@fnal.gov begel@bnl.gov m-schmitt@northwestern.edu.

Our meetings general take place on Mondays. Recent meetings include:

• May 18, 2020: Kick-off
• June 1, 2020: Orientation: past and recent work.
• June 30, 2020: alpha_S
• July 17, 2020: MC event generator uncertainties
• Aug 3-4, 2020: Mini-workshop on non-perturbative uncertainties

Some (but not all) of the topics addressed by EF05:

• Measurements of alpha_S
• Parton Distribution Functions (together with E06)
• Connections between the High-Luminosity LHC and e.g. the Electron-Ion Collider (EIC)
• Jet substructure
• Theoretical calculations: fixed-order pQCD
• Theoretical calculations: resummation
• Non-perturbative aspects
• MC Event Generators

Other topics include Lattice QCD, Connections to machine learning, jets and nuclear effects in lepton-ion scattering, precision calculations at small x_Bj, Regge trajectories, etc.

Researchers with interests in precision QCD should contact the organizers to arrange a presentation or contribution.

Activities will be grouped around several Letters of Interest. The portal for submitting an LOI is here.