Speaker
Description
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. In this talk we will focus on a consistent resummation of mass and soft logarithms at next-to-leading logarithmic (NLL) accuracy. Furthermore, we will extend this framework to achieve the so-called NLL′ accuracy, which accounts for finite terms in the soft and massless limit.