Erratum: Time-like heavy-flavour thresholds for fragmentation functions: the light-quark matching condition at NNLO
We provide a correction to the coefficient proportional to (1z) in the NNLO time-like matching condition for lightquark fragmentation functions.Although the antenna function containing the double-real correction to the massive contribution is finite in four dimensions, it inheritances a scheme dependency when promoted to a distribution, due to the end-point soft regularisation.Therefore, Eq. ( 39) of the paper introduced a scheme-dependent terms proportional to (1-z) in the double-real contribution.A scheme transformation is needed to match the MS conventions of all the other ingredients entering the calculation.In order to be able to perform a scheme transformation to MS, for the fragmentation antenna B0,id.iih h (z, ), the prescription of Eq. ( 39) must be replaced as follows
Authors
- Leonardo Bonino (ORCID: https://orcid.org/0009-0001-0759-488X)
- Christian Biello (ORCID: https://orcid.org/0009-0007-8745-9410)
Institutions
- University of Zurich (CH)
- Instituto de Física Teórica (ES)
Publication Details
- Journal
- The European Physical Journal C
- Published
- 2026-04-27
- DOI
- https://doi.org/10.1140/epjc/s10052-026-15628-w
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00