Stefano Forte

TL;DR: In this paper, the authors summarized the activities of the SM and NLO Multileg Working Group of the Workshop "Physics at TeV Colliders", Les Houches, France 8-26 June, 2009.

TL;DR: In this article, an improvement of the splitting functions at small x was proposed, which overcomes the apparent problems encountered by the BFKL approach and leads to good apparent convergence, and a description of scaling violations valid both at large and small x.

TL;DR: In this paper, the authors discuss the inclusion of running coupling effects in perturbative small x evolution equations, and show that a running coupling BFKL-like x -evolution equation is fully compatible, up to higher twist corrections, with the standard factorized perturbation evolution of parton distributions.

TL;DR: The proceedings of the 2019 Les Houches workshop on physics at TeV colliders as discussed by the authors dealt with new developments for high precision Standard Model calculations, the sensitivity of parton distribution functions to the experimental inputs, new developments in jet substructure techniques and a detailed examination of gluon fragmentation at the LHC, issues in the theoretical description of the production of Standard Model Higgs bosons and how to relate experimental measurements.

TL;DR: In this article, the authors show how perturbation theory may be reorganized to give splitting functions which include order by order convergent sums of all leading logarithms of x and Q 2, allowing stable perturbative evolution down to arbitrarily small values of x.