Speaker
Dr
Emanuele Roberto Nocera
(University of Oxford)
Description
I discuss the impact of recent measurements of top-pair differential distributions from ATLAS and CMS at $\sqrt{s}=8$ TeV on the gluon parton distribution function (PDF). The new data is included in a global QCD analysis of PDFs at next-to-next-to-leading order (NNLO) accuracy, based on the NNPDF methodology. I comment on the compatibility between ATLAS and CMS measurements and I show how a suitable choice of differential distributions can maximize the reduction of the gluon uncertainty at large momentum fractions. I discuss some implications in gluon-initated processes which are relevant in searches for new physics.
Primary author
Dr
Emanuele Roberto Nocera
(University of Oxford)
