Gluon transverse momentum dependent correlators in polarized high energy processes

Apr 12, 2016, 9:00 AM
25m
SR4a (DESY Hamburg)

SR4a

DESY Hamburg

Spin Physics WG6 Spin Physics

Speaker

Piet Mulders (Nikhef and VU, Amsterdam)

Description

We investigate the gluon transverse momentum dependent correlators as Fourier transform of matrix elements of nonlocal operator combinations. At the operator level these correlators include both field strength operators and gauge links bridging the nonlocality. In contrast to the collinear PDFs, the gauge links are no longer unique for transverse momentum dependent PDFs (TMDs) and also Wilson loops lead to nontrivial effects. We look at gluon TMDs for unpolarized, vector and tensor polarized targets. In particular a single Wilson loop operators become important when one considers the small-x limit of gluon TMDs.

Primary author

Piet Mulders (Nikhef and VU, Amsterdam)

Co-authors

Daniel Boer (University of Groningen) Sabrina Cotogno (Nikhef and VU, Amsterdam) Tom van Daal (Nikhef and VU, Amsterdam) Yajin Zhou (Nikhef/VU, Amsterdam and Shandong University, Jinan) andrea signori (Nikhef and VU, Amsterdam)

Presentation materials