Dechambre, Alice[Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Interactions fondamentales en physique et astrophysique >]
Université de Liège, Liège, Belgique
Diplome de Docteur en Science
[en] Central exclusive production ; Higgs ; LHC physics
[en] Quasi-elastic production is usually viewed as a golden signal for the detection of objects such as the Higgs boson(s) or exotic particles and this is due to the very clean final state and the lack of hadronic remnants after the interaction. In view of the recent data from CDF Run II, we critically re-evaluated the standard approach to the calculation of quasi-elastic cross sections in the high-energy limit and evaluated the uncertainties that affect this kind of process.
The main idea of this work was to understand the various ingredients that enter the calculation and the uncertainties coming from each of them. We studied and narrowed down these uncertainties using available data on dijets quasi-elastic event at the TeVatron. All the arguments developed apply to high-mass central systems and lead to a prediction of the Higgs quasi-elastic cross section at the LHC energies.