We study multifield extensions of Reggeon Field Theory (also equivalent to Directed Percolation model) at criticality in the improved one-loop perturbative expansion using Wilsonian regulator and ϵ-expansion below the upper critical dimension Dc = 4 at one loop. Analyzing all the fixed points of the renormalization group flow for two flavors, we were able to find different interactions between...
The large top quark samples collected with the ATLAS experiment at the LHC have yielded measurements of the production cross section of unprecedented precision and in new kinematic regimes. They have also enabled new measurements of top quark properties that were previously inaccessible, enabled the observation of many rare top quark production processes predicted by the Standard Model and...
In this talk, I will present the development of the homotopy method for solving the nonlinear Balitsky-Kovchegov (BK) equation with a running QCD coupling. I will show how an analytic solution is obtained for a simplified equation with a leading-twist BFKL kernel, satisfying initial and boundary conditions. In the second stage, we calculate the corrections to this solution. These corrections...
Recent results will be presented on the Mellin moments of parton distributions as well as on generalised parton distribution functions of the proton. We will show results using twisted mass fermion ensembles simulated with physical values of the light quark mass.
