Bridging massive and massless schemes for soft gluon resummation in heavy-flavour production
| Autor: | Ghira, Andrea, Mai, Lorenzo, Marzani, Simone |
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| Rok vydání: | 2024 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | Perturbative calculations for processes involving heavy flavours can be carried out using two approaches: the massive and the massless schemes. These schemes can also be combined to leverage their respective strengths. Additionally, both massive and massless frameworks can be supplemented by soft-gluon resummation. However, matching resummed calculations across the two schemes presents significant challenges, primarily due to the non-commutativity of the soft and small mass limits. The consistent resummation of mass and soft logarithms has been recently achieved at next-to-leading logarithmic (NLL) accuracy. In this paper, we extend this framework to achieve the so-called NLL$^\prime$ accuracy, which accounts for finite terms in the soft limit. Comment: 12 pages, 2 figures |
| Databáze: | arXiv |
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