A sensitivity study of triboson production to dimension-6 EFT operators at the LHC.

Tarricone C.
  Lunedì 12/09   14:00 - 19:00   Aula B - Maria Goeppert-Mayer   I - Fisica nucleare e subnucleare   Presentazione
In the electroweak sector of the Standard Model (SM), triple and quartic gauge couplings of vector bosons emerge due to the non-Abelian nature of the corresponding symmetry group. These couplings play an important role in vector boson scattering and multi-boson production processes. Therefore, the accurate measurement of gauge couplings in triboson production in proton-proton collisions represents an excellent probe of the gauge structure of the electroweak sector of the SM. In addition, potential deviations from SM predictions may provide a hint of the existence of higher-dimension correction terms arising in the context of Effective Field Theories (EFTs). The EFTs constitute a theoretical framework that generalizes the dimension-4 SM Lagrangian with the inclusion of higher-dimension operators, most commonly dimension-6 and dimension-8 operators. In this contribution, I present a parton-level study exploring where new physics phenomena beyond the SM could occur in triboson production processes. In particular, there is presented the evaluation of the sensitivity of triboson production processes to anomalous kinematic effects deriving from the presence of dimension-6 operators.