[Cuga] Precision Radiative Corrections for Next Generation Experiments- A message from Dave Gaskell

[Lorelei Chopard]

*Precision Radiative Corrections for Next Generation Experiments*
May 16-19, 2016
Thomas Jefferson National Accelerator Facility
Newport News, VA

https://www.jlab.org/conferences/radiative2016/

A majority of approved physics experiments that will be running with 
12-GeV electron beams at JLab require at least a per-cent accuracy in 
the measurements of differential cross sections and polarization 
asymmetries, making electromagnetic corrections crucial for 
interpretation of data.  Recent Jefferson Lab measurements of 
single-spin asymmetries from two-photon exchange (TPE) in DIS revealed 
the effect is at a per-cent level, making TPE a high-priority issue for 
SIDIS analysis of single-spin asymmetries, and will also be of concern 
for deep-exclusive processes. Extension and further development of the 
theoretical and computational approaches to higher-order QED effects for 
electron scattering is an outstanding problem for the upcoming physics 
analysis effort at JLab.

The workshop on "Precision Radiative Corrections for Next Generation 
Experiments" will address outstanding issues of QED radiative effects 
for several critical research areas including:

 1. Studies of nucleon's Generalized Parton Distributions (GPDs) and
    Transverse Momentum Distributions (TMDs)
 2. Measurements of the elastic form factors and resonance transition
    form factors of the nucleon
 3. Effects of nuclear medium on the properties of hadrons
 4. Search for physics beyond the Standard Model of electroweak interactions

Dedicated sessions will address items involving radiative corrections, 
including:

 1. Structure Functions from models and phenomenology, needed as input
    for radiative correction calculations
 2. Different MC programs using radiative effects
 3. Integration of Radiative corrections into the extraction chain (in
    particular extraction of 3D PDFs from data)
 4. TPE-induced electromagnetic effects and T-odd contributions

One  of the main goals of the  Workshop will be the development of a 
clear and specific plan for providing radiative corrections in the 
extraction of 3D PDFs, GPDs and form factors in nucleons and nuclei, 
thereby supporting the JLab12 physics program as well as the development 
of a strong physics case for the Electron Ion Collider.

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