English

Heavy Quarks in Polarised Deep-Inelastic Scattering at the Electron-Ion Collider

High Energy Physics - Phenomenology 2024-02-28 v2 High Energy Physics - Experiment Nuclear Experiment Nuclear Theory

Abstract

We extend the FONLL general-mass variable-flavour-number scheme to the case of longitudinally polarised DIS structure functions, accounting for perturbative corrections up to O(αs2)\mathcal{O}(\alpha_s^2). We quantify the impact of charm quark mass and higher-order perturbative corrections on projected measurements of inclusive and charm-tagged longitudinal asymmetries at the Electron-Ion Collider (EIC) and at the Electron-ion collider in China (EicC). We demonstrate how the inclusion of these corrections is essential to compute predictions with an accuracy that matches the projected precision of the measurements. The computation is made publicly available through the open-source EKO and YADISM programs

Keywords

Cite

@article{arxiv.2401.10127,
  title  = {Heavy Quarks in Polarised Deep-Inelastic Scattering at the Electron-Ion Collider},
  author = {Felix Hekhorn and Giacomo Magni and Emanuele R. Nocera and Tanjona R. Rabemananjara and Juan Rojo and Adrianne Schaus and Roy Stegeman},
  journal= {arXiv preprint arXiv:2401.10127},
  year   = {2024}
}

Comments

24 pages, 15 figures, version accepted for publication in EPJC 0.1140/epjc/s10052-024-12524-z