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

Chiral-odd PDFs from dihadron observables and the role of positivity constraints

May 23, 2022, 5:45 PM
15m
Almo Collegio Borromeo, Pavia, Italy

Almo Collegio Borromeo, Pavia, Italy

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

Speaker

Aurore Courtoy (Instituto de Física, UNAM)

Description

In this short talk, we discuss chiral-odd PDFs that can be accessed through dihadron observables: the transversity PDF and the twist-3 scalar PDF e(x).
The former is subject to positivity constraints, the Soffer bound. Recent analyses have explored the role of theoretical constraints on the tensor charge. We comment on that point, in view of future improvements in all global analyses.
As for the scalar PDF, its extended relation to nonperturbative manifestations of QCD makes it a unique object. We discuss its first extraction in a collinear framework as well as possible and necessary extensions towards a full QCD analysis.

Primary author

Aurore Courtoy (Instituto de Física, UNAM)

Presentation materials