Experiments and phenomenology of electric dipole moments

• DOI: 10.48550/arxiv.2407.19247
• Publication Date: 2024-07-27
• Authors: J. Ruiz Vidal
• Keywords: High Energy Physics - Phenomenology; High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph); FOS: Physical sciences; High Energy Physics - Experiment

The Standard Model (SM) is the best description of fundamental particles and their interactions we have to date. From this theory, all phenomena in macroscopic world (except for gravity) can be explained, it has successfully predicted outcomes particle experiments on Earth. However, cosmological observations early Universe yield a large imbalance between its content matter antimatter, which several orders magnitude above SM prediction. To explain these observations, new that do not respect charge-parity symmetry must exist beyond SM. Such would induce electric dipole moments (EDMs) known particles. In Part I thesis, propose extend active experimental program EDM searches charm bottom baryons, $\tau$ leptons, $\Lambda$ hyperons; also allowing measurement corresponding magnetic (MDMs). MDM short-lived accessed with bent-crystal experiment installed Large Hadron Collider (LHC), while longer-lived measured at LHCb no additional instrumentation. II, an analysis data measure polarization $\Lambda_c^+ \to \Lambda \pi^+ \pi^-$ decays, essential ingredient proposed measurement, presented. last part derive indirect bounds heavy quark EDMs already available explore phenomenological implications other limits New Physics models, special emphasis extensions colour-octet scalars.