Speaker
Patrick Barry
Description
We perform the first global QCD analysis of pion valence, sea quark, and gluon distributions within a Bayesian Monte Carlo framework with threshold resummation on Drell-Yan cross sections at next-to-leading logarithmic accuracy. Exploring various treatments of resummation including in Mellin-Fourier and double Mellin space, we find that the behavior of the valence quark distribution at large-$x$ $\sim (1-x)^{\beta_v}$ can differ significantly, with $\beta_v$ ranging from $≈1$ to $> 2.5$ at the input scale.
| Submitted on behalf of a Collaboration? | No |
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