Year: 2026
Type: preprint
Abstract: The report on an extraction of genuine twist-three parton distributions, obtained from a joint fit of the deep-inelastic scattering (DIS) structure function $g_2$, its moment $d_2$, and the Sivers and worm-gear-T asymmetries measured in semi-inclusive DIS (SIDIS). These four observables probe different sections of the same twist-three distributions, and thus their joint analysis makes a precision extraction of this two-variable function possible. Considering a sub-set of observables does not constrain the twist-three distribution in all its parts. Nonetheless, such consideration places a sufficient amount of restrictions to sufficiently accurately estimate eliminated observables, explicitly demonstrating the universality of twist-three distributions.
Source: arXiv (Cornell University)
Author: Vladimirov, Alexey
Institution: Universidad Complutense de Madrid
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1175115578, G121809054, G1855990336, G2262748287, G2309174360, G2660406951, G279363373, G300979063, G34346518, G3480869486, G3518538256, G4005730462, G425668148, G430777504, G4526231891, G488842982, G5080475149, G5421974903, G7084143925, G8534306365, G8601210351, G8920660035, G897484643, G99296377
OpenAlex ID: W7213319067