Dec 8 – 11, 2014
University of Antwerp
Europe/Zurich timezone
REF 2014: Resummation, Evolution, Factorization

Gluon TMDs and quarkonium production in (un)polarized proton-proton collisions

Dec 11, 2014, 9:25 AM
Building D, Room D013 (University of Antwerp)

Building D, Room D013

University of Antwerp


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


In this talk, I discuss how the study of quarkonium production in unpolarised and polarised proton-proton collisions can provide important insights on the gluon TMDs. The study of back-to-back production of quarkonium + isolated photon provides a unique way to extract the gluon TMDs f1^g and h1^perp,g at the LHC [1] and at a proposed Fixed-Target ExpeRiment at the LHC (AFTER@LHC). Although with smaller rates [2], Psi+Z and Upsilon+Z also offer interesting prospects at LHC energies. In addition, Quarkonium + isolated photon can also be used to extract the gluon Sivers function via Transverse Single Spin Asymmetries (TSSA), complementing the possible study of low-pT C-even quarkonium TSSA. Finally, I will comment on the additional information which can be obtained through J/psi-pair production in both unpolarised and polarised proton-proton collisions, extending our previous work [3].

Primary author

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

Presentation materials