May 23 – 27, 2022
Almo Collegio Borromeo, Pavia, Italy
Europe/Rome timezone

Proof of factorization enabling lattice calculation of TMDs

May 26, 2022, 5:55 PM
Almo Collegio Borromeo, Pavia, Italy

Almo Collegio Borromeo, Pavia, Italy

P.zza Borromeo 9 27100 Pavia Italy
Remote standard talk Plenary session


Stella Schindler


Non-perturbative parton distributions that arise in the TMD factorization of cross-sections have dynamics dominated by the lightcone. This renders them inaccessible to direct lattice QCD calculations due to the sign problem in real-time calculations. To circumvent this issue, one may construct a lattice-calculable TMD that shares the same IR physics as the physical TMD appearing in cross-sections, and then must prove a factorization theorem connecting these two functions. In this talk, I prove such a relation for quasi-TMDs and Collins TMDs for leading power distributions of any spin, for both quarks and gluons.

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