Heavy quark impact factor in kT -factorization
AbstractWe present the calculation of the finite part of the heavy quark impact factor at next-to-leading logarithmic accuracy in a form suitable for phenomenological studies such as the calculation of...
View ArticleThe γ * γ * total cross section in next-to-leading order BFKL and LEP2 data
AbstractWe study the total cross section for the collision of two highly-virtual photons at large energies, taking into account the BFKL resummation of energy logarithms with full next-to-leading...
View ArticleOn the singular behaviour of scattering amplitudes in quantum field theory
AbstractWe analyse the singular behaviour of one-loop integrals and scattering amplitudes in the framework of the loop-tree duality approach. We show that there is a partial cancellation of...
View ArticleSingle bottom quark production in k ⊥ -factorisation
AbstractWe present a study within the kT-factorisation scheme on single bottom quark production at the LHC. In particular, we calculate the rapidity and transverse momentum differential distributions...
View ArticleNumerical implementation of the loop–tree duality method
AbstractWe present a first numerical implementation of the loop–tree duality (LTD) method for the direct numerical computation of multi-leg one-loop Feynman integrals. We discuss in detail the singular...
View ArticleSudakov representation of the Cachazo-He-Yuan scattering equations formalism
AbstractWe show that the use of Sudakov variables greatly simplifies the study of the solutions to the scattering equations in the Cachazo-He-Yuan formalism. We work in the center-of-mass frame for the...
View ArticleOpen spin chains and complexity in the high energy limit
AbstractIn the high energy limit of scattering amplitudes in Quantum Chromodynamics and supersymmetric theories the dominant Feynman diagrams are characterized by a hidden integrability in the planar...
View ArticleHunting BFKL in semi-hard reactions at the LHC
AbstractThe agreement between calculations inspired by the resummation of energy logarithms, known as BFKL approach, and experimental data in the semi-hard sector of QCD has become manifest after a...
View ArticleOn the conformal spin dependence of the perturbative QCD vacuum singularity
AbstractWe study the four-gluon scattering amplitude in the high energy limit of QCD written in terms of its conformal expansion. We highlight the need to include both even and odd conformal spin...
View ArticleTowards a muon collider
AbstractA muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions at high...
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