Feasibility studies on the production of new particles with preferential couplings to third generation fermions at the LHC

Abstract

The standard model (SM) of particle physics is the most successful theory we have when it comes to describing the functioning of the subatomic world. Day by day, the SM is put to test by different experiments conducted around the world, aimed to test its validity. The project that is, perhaps, the most important in this frontier is the Large Hadron Collider (LHC). One of the goals of the experiments at the LHC is to accurately measure the parameters of the SM, and also search for any deviation from the SM predictions that could indicate new physics. In recent years, the observations reported by LHCb, Babar, and Belle experiments of the apparent anomalies in B-meson decays, together with the possible anomaly on the magnetic angular momentum of muons reported by the Muon g - 2 experiment at Fermilab, indicate that, perhaps, lepton flavour universality is violated in the SM, in turn being a window to search new physics. Of the new models that intent to extend the SM to explain violation of lepton flavour universality, several of them introduce new particles with preferential couplings to third generation fermions. Some of the most popular models include the hypothetical production of heavy mass particles such as Z', W', and Leptoquarks (LQ). In this project, we seek to conduct feasibility studies for the LHC associated with the production of these new hypothetical particles through different production mechanism and with preferential couplings to third generation fermions. These studies will be conducted using different simulation packages to emulate the LHC conditions and the statistical analysis will use Machine Learning (ML) methods.