Apr 16 – 20, 2018
Kobe University Convention Centre / Kobe International Conference Center
Asia/Tokyo timezone

Probing gluon TMDs with quarkonia

Apr 17, 2018, 11:30 AM


WG6: Spin and 3D structure WG6: Spin and 3D structure


Jean-Philippe Lansberg (IPN Orsay, Paris Sud U. / IN2P3-CNRS)


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.

Primary 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)

Presentation materials