High Energy Scattering Processes in QCD

February 18, 2015
3:00pm to 4:30pm

Department of Theoretical Physics (UAM)

Specialist level
Francesco Caporale

Department of Theoretical Physics (UAM)


In the strong interaction sector of the standard model (SM) we have already a quite convincing "picture" about the microscopic dynamics, through its theoretical formulation as a quantum field theory, Quantum ChromoDynamics (QCD). Nevertheless, many intriguing questions are still open. Today, the LHC provided the possibility to investigate with good precision parton-parton scattering in a regime where the total centre-of-mass-energy of hard partonic sub-process is much larger than the hard energy scale involved in the interaction (Regge limit). In that limit, the common basis for the perturbative description of a hard process in QCD is the Balitsky-Fadin-Kuraev-Lipatov (BFKL) approach.
The production of two jets strongly separated in rapidity (Delta y >> 1) was suggested as an ideal tool to study the Regge limit of perturbative QCD in proton-proton (or proton- antiproton) collisions.
We determined several observables related with the this process, including also subleading effects generated by renormalization group (RG) analysis.