Fast evaluation of heavy-quark contributions to DIS in APFEL++

29 Mar 2023, 09:20
20m
104AB (MSU Kellogg Center)

104AB

MSU Kellogg Center

Parallel talk WG4: QCD with Heavy Flavours and Hadronic Final States WG4

Speaker

Peter Risse

Description

Mass-dependent quark contributions are of great importance to DIS processes. The simplified-ACOT-$\chi$ scheme includes these effects over a wide range of momentum transfers up to next-to-leading order in QCD. In recent years an improvement in the case of neutral current DIS has been achieved by using zero-mass contributions up to next-to-next-to-leading order (NNLO) with massive phase-space constraints. In this talk, we extend this approach to the case of charged current DIS and provide an implementation in the open-source code APFEL++. The increased precision will be valuable for ongoing and future neutrino programs, the Electron-Ion-Collider and the studies of partonic substructure of hadrons and nuclei. A highly efficient implementation using gridding techniques extends the applicability of the code to the determination of parton distribution functions (PDFs).

Submitted on behalf of a Collaboration? No

Primary authors

Prof. Fred Olness (Southern Methodist University (US)) Ingo Schienbein (Universite Grenoble Alpes) Peter Risse Dr Valerio Bertone (C.E.A. Paris-Saclay)

Presentation materials