We discuss how quarkonium production, in particular $\eta_c$ production in proton-proton collisions, can be used to access gluon transverse-momentum-dependent parton distribution functions (TMDPDFs).
To do so, we apply the effective field theory machinery to factorize the process in terms of gluon TMDPDFs at low transverse momentum, and match this result with the collinear framework to obtain the full transverse-momentum spectrum.
This matching is performed by applying the newly devised inverse-error weighting method, based on an estimation of the uncertainties coming from power corrections to construct a weighted average of both factorization theorems.
Volume 310 -
XVII International Conference on Hadron Spectroscopy and Structure (Hadron2017) -
Session 6: QCD and hadron structure
Quarkonium production to explore hadron 3D structure
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Pre-published on:
February 16, 2018
Published on:
March 20, 2018
Abstract
DOI: https://doi.org/10.22323/1.310.0179
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.