Speaker
Jean-Philippe Lansberg
(IPN Orsay, Paris Sud U. / IN2P3-CNRS)
Description
In this talk, I will discuss the relevance of using quarkonium-hadroproduction data in order to study the gluon TMDs in unpolarised protons. I will discuss the case of single $\eta_c$ production as well as that of $J/\psi(\Upsilon)+\gamma$ and $J/\psi$ pairs. In particular, I will discuss our first extraction of $f_1^g$ using the di-$J/\psi$ LHCb data and argue that $h_1^{\perp g}$ can be extracted in the near future with data taken in the CMS and ATLAS acceptances. I will also discuss how the newly introduced matching procedure based on an inverse-error weighting can help connect such studies with computations made in the collinear factorisation.
Authors
Dr
Cristian Pisano
(University of Pavia)
Jean-Philippe Lansberg
(IPN Orsay, Paris Sud U. / IN2P3-CNRS)
Tomas Kasemets
(JGU Mainz)
Dr
Miguel G. Echevarría
(INFN Pavia)
Florent Scarpa
(IPN Orsay - Paris-Sud U. - CNRS/IN2P3)
Andrea Signori
(VU University Amsterdam - Nikhef)
Marc Schlegel
(New Mexico State University)
