Madweight is a algorithm to automatically reweight experimental events with the squared matrix element, and therefore provides the required computation techniques for a practical application of the matrix element method. We also study the usefullness of MadWeight to estimate differential cross-section via the marginal distributions of the the experimental weights .
External collaborators: Pierre Artoisenet (Ohio state university).
To study graviton production through multi-jet final state processes at hadron colliders taking into account the following models: ADD, RS and a massless graviton model.
External collaborators: Qiang Li (Paul Scherrer Institut - PSI, Switzerland) and prof. Kaoru Hagiwara (KEK Theory Center and Sokendai, Japan).
We study the Vector Boson Fusion production channel for the Higgs boson and other particles at the LHC, mainly focusing on the role of QCD corrections.
Monte Carlo development. In collaboration with MadGraph and FeynRules teams and many external collaborators
External collaborators: Claude Duhr, Benjamin Fuks, Kentarou Mawatari, Kaoru Hagiwara, Tim Stelzer, Johan Alwall, Stefano Frixione, Roberto Pittau, Valentin Hirshi, Rikkert Frederix.
The goal of this work is to explore the phenomenology of a two Higgs doublet model with a custodial symmetry. It provides topologies that are unusual in the models usually considered in the literature. Notably, it opens the possibility of having an inverted mass spectrum with respect to MSSM with the lightest Higges being a pseudo-scalar and an heavier triplet of charged and neutral higgses.
External collaborators: Simon de Visscher (Zurich university).
The difference between predictions obtained with a massive scheme, where a heavy quark is treated as a finale massive state and the massless scheme, where the heavy quark is viewed as an initial parton may be extremely sizable. The aim of the project is to gain a better understanding of the size of the collinear logarithms arising when a heavy quark is treated as a final massive state and to investigate its kinematical origin.
External collaborators: Maria Ubiali, Giovanni Ridolfi.
We study the phenomenology the top quark at colliders as well as at low energy via loops.
External collaborators: Christophe Grojean, Geraldine Servant, Scott Willenbrock, Benjamin Fuks.
