Nov 25 – 29, 2019
University of Pavia
Europe/Rome timezone

Photoproduction of three jets in TMD factorization from the CGC

Nov 28, 2019, 2:30 PM
Aula Foscolo (University of Pavia)

Aula Foscolo

University of Pavia

Via Strada Nuova 65, Pavia


Pieter Maria Taels (Istituto Nazionale di Fisica Nucleare)


In this work, we investigate the photoproduction of three jets at low-x. We calculate the cross section using the Color Glass Condensate (CGC) effective theory, allowing us to resum the multiple scattering of the hard partons off the dense semi-classical gluon fields in the highly boosted proton or nucleus. In the so-called correlation limit, in which the sum q_T of the transverse momenta of the jets is smaller than each of the individual momenta K_T, the result can be expanded in the small parameter q_T/K_T and one recovers a (leading-order) TMD factorized expression. This expression consists of the same hard parts one would obtain in a TMD calculation, convolved with what we show are the unpolarized and linearly polarized Weizsäcker-Williams gluon TMDs. We show model predictions for the cross section, ways to disentangle the TMDs with the help of azimuthal momenta, and elaborate on the future outlook.

Primary authors

Pieter Maria Taels (Istituto Nazionale di Fisica Nucleare) Tolga Altinoluk (NCBJ Warsaw) Cyrille Marquet (University of Santiago de Compostela) Renaud Boussarie (Brookhaven National Lab)

Presentation materials