Precise predictions for semi-Inclusive DIS

6 May 2026, 14:30
20m
Sala IMPERIALE A, First Floor (Hotel Carlton)

Sala IMPERIALE A, First Floor

Hotel Carlton

Talk WG1 Structure Functions and Parton Densities WG1 Structure functions and parton densities

Speaker

Thomas Gehrmann (Universität Zürich)

Description

The production of identified hadrons in lepton-nucleon scattering (semi-inclusive deep inelastic scattering, SIDIS) allows for detailed analyses of parton distributions and fragmentation functions.
For polarised nucleons, the spin structure of the nucleon target can be proved to a more detailed level than through fully inclusive processes.
We present our calculations of the full set of next-to-next-to leading order (NNLO) QCD corrections to polarised and unpolarised neutral and charged current SIDIS coefficient functions.
We study the numerical impact of our results with a focus on the kinematical settings of the future Electron-Ion Collider (EIC).
We further highlight the impact that our results will have on the extraction of fragmentation functions from so-far ignored neutrino-induced SIDIS data.
Our results enable for the first time a consistent treatment of charged and neutral current induced hadron fragmentation processes in DIS at NNLO in QCD.

Speaker confirmation Yes

Authors

Leonardo Bonino (University of Zurich) Thomas Gehrmann (Universität Zürich)

Presentation materials