Conveners
TMD theory
- Hannes Jung (DESY)
TMD theory
- Itana Bubanja
In this paper, we study the Parton Distribution Functions (PDFs) at low x and at NLO approximation in perturbative QCD.
To this end, a simple parametrization for the unintegrated Parton Distribution Functions based on the "Fractal" approach is considered. These functions have self-similar behavior at low x and $k_t^2$ for sea quarks and have self-similar behavior at low $ x$ for gluon...
The low transverse momentum, $q_{T}$, region of the Drell-Yan (DY) pair is dominated by non-perturbative physics. More precisely, the region where $q_{T}<
We introduce a new type of transverse momentum dependent (TMD) distribution function at the threshold limit in the Drell-Yan process as well as semi-inclusive deep-inelastic scattering and double-inclusive leptonic annihilation. We apply Soft-Collinear Effective Theory (SCET) and renormalization group methods to obtain QCD evolution equations for both threshold-TMD Parton distribution...
The hybrid kT-factorization formula, for which one initial-state parton
momentum is space-like and carries non-vanishing transverse components while
the other is on-shell, is promoted to NLO for arbitrary processes. We identify
all soft and collinear divergencies in the partonic cross section, and
recognize that the non-cancelling ones can be attributed to PDF evolution,
evolution kernel,...
