Professor Daniela Bortoletto

Abstract:

Differential cross-sections are measured for the production of four charged leptons in association with two jets. These measurements are sensitive to final states in which the jets are produced via the strong interaction as well as to the purely-electroweak vector boson scattering process. The analysis is performed using proton-proton collision data collected by ATLAS at s = 13 TeV and with an integrated luminosity of 140 fb−1. The data are corrected for the effects of detector inefficiency and resolution and are compared to state-of-the-art Monte Carlo event generator predictions. The differential cross-sections are used to search for anomalous weak-boson self-interactions that are induced by dimension-six and dimension-eight operators in Standard Model effective field theory.

Abstract:

The availability of a kaon beam in the CERN SPS North Area gives a unique possibility of making tests of the Standard Model in the flavour physics sector. The HIKE programme has been presented at CERN to study rare decays of charged and neutral kaons with unprecedented precision. The realization of this programme will allow for tests of lepton flavour universality and lepton number conservation, as well as other precision measurements in the kaon sector and exotic particle searches.