TMD Collaboration Meeting

Session

Talks II

Jun 15, 2022, 11:00 AM

Canyon (Hilton Santa Fe Historic Plaza)

Contribution list Timetable

17. Independent amplitudes in the quark and antiquark correlators and TMDs in the covariant parton model

Fatma Aslan (JLab/UConn)

6/15/22, 11:00 AM

Covariant parton model (CPM) is a generalization of the Feyman's parton
model which does not prefer any special reference system. Within the
framework of covariant parton model, we study the properties of the quark
and antiquark correlators determined by the equations of motion of the
free partons, and derive the polarization vectors for quarks and
antiquarks in mixed-spin and pure-spin...

19. Global Analysis of Worm-Gear Function g_1T

Shohini Bhattacharya

6/15/22, 11:30 AM

We report on the first global QCD analysis of the worm gear function g_1T, based on data from COMPASS, HERMES and Jefferson Lab. The results are compared to the Wandzura-Wilczek approximation, the large-Nc approximation, and information from lattice QCD. The talk is based on the preprint arXiv:2110.10253.

27. Global Analysis of Single Transverse-Spin Asymmetries

Daniel Pitonyak (Lebanon Valley College)

6/15/22, 12:00 PM

I will discuss the latest results from a global analysis of single transverse-spin asymmetries that includes data from SIDIS, electron-positron annihilation, Drell-Yan, and single-inclusive proton-proton collisions as well as constraints on transversity from lattice QCD and the Soffer bound. This aligns with Milestone 6 of the TMD Collaboration.