Speaker
Florent Scarpa
(VSI - University of Groningen / IPN Orsay - Paris-Sud U. - CNRS/IN2P3)
Description
We report on our recent study on the extraction of the gluon Transverse Mo-
mentum Dependent distributions (TMDs) inside unpolarised protons, using vector
quarkonium pair production at the LHC. In this work, we show how J/ψ pair pro-
duction is an ideal process to pin down the gluon TMDs and generate large azimuthal
asymmetries ; we also present a first fit of the average kT parameter for a Gaussian model
of the TMD f1g using LHCb data. We add new results including the effect of the
evolution of the gluon TMDs, for the kinematics relevant for the LHCb, CMS and
ATLAS data.
Authors
Florent Scarpa
(VSI - University of Groningen / IPN Orsay - Paris-Sud U. - CNRS/IN2P3)
Jean-Philippe Lansberg
(IPN Orsay, Paris Saclay U. / IN2P3-CNRS)
Cristian Pisano
(University and INFN Cagliari (Italy))
Marc Schlegel
(New Mexico State University)
Daniel Boer
Miguel Echevarria
(INFN Pavia)
Hua-Sheng Shao
(Peking University,Beijing,China)
Andrea Signori
(Argonne National Laboratory)
