XXVII International Workshop on Deep Inelastic Scattering and Related Subjects

NLO corrections to heavy flavour distributions in polarized deep-inelastic scattering

10 Apr 2019, 16:15

17m

Rettorato - Aula Principi d'Acaja

Parallel Session Talk WG6: Spin and 3D structure WG6: Spin and 3D structure

Speaker

Felix Hekhorn (University Tübingen)

Description

We present a first calculation of the heavy flavour contribution to the longitudinally polarized DIS structure function $g_1^Q$, differential in the transverse momentum or the rapidity of the observed heavy antiquark $\bar{Q}$. The results are obtained at next-to-leading order accuracy with a newly developed parton-level Monte Carlo generator that also allows one to study observables associated with the heavy quark pair such as its invariant mass distribution or their correlation in azimuthal angle. First phenomenological studies are presented in a kinematic regime relevant for a future Electron-Ion Collider with a particular emphasis on the sensitivity to the helicity gluon distribution. Finally, we also provide first NLO results for the full neutral-current sector of DIS, i.e., including contributions from $Z$-boson exchange.

Presentation materials

Hekhorn_DIS2019.pdf