Speaker
Description
I will discuss the large-x behaviour of transverse momentum dependent distributions (TMDs) through the resummation of singular contributions in this regime to their collinear matching coefficients. The resummation is performed directly at the level of TMDs, preserving the process-independent structure of the formalism and allowing a unified treatment of different distributions relevant for phenomenology. The framework applies to both TMDPDFs and TMDFFs, including distributions that match onto twist-three collinear functions. I will present the general structure of the resummed results and discuss their phenomenological implications for TMD-sensitive observables, in particular the improvement of perturbative convergence and the reduction of theoretical uncertainties in the large-$x$ region. These results provide a useful step towards more precise and consistent phenomenological analyses of SIDIS and Drell–Yan measurements in kinematic regions relevant for current and future experiments.