# DIS 2015 - XXIII. International Workshop on Deep-Inelastic Scattering and Related Subjects

27 April 2015 to 1 May 2015
US/Central timezone

## Impact of global direct photon data on the gluon distribution function

Not scheduled
15m
WG1 Structure Functions and Parton Densities

### Speaker

nobuo sato (jlab)

### Description

In this talk we will discuss the phenomenology of direct photon production using theoretical predictions at \emph{next-to-leading order} with threshold resummation up to \emph{next-to-leading-logarithmic} accuracy. By analyzing the global data sets of direct photons, we found good agreement between the theory and the data for a wide range of energies ($\sqrt{s}=23$ GeV up to $7$ TeV) if we exclude the data from E706 experiment. We have studied the potential impact of direct photon data on parton distribution functions using a Bayesian reweighting approach. A reduction of $10\%$ around \$0.3

### Co-author

Joseph Owens (Florida State University)

### Presentation Materials

There are no materials yet.