Footprints of SUSY GUTs in Flavour Physics

TL;DR

This paper explores how SUSY GUTs with an SU(5) framework and right-handed neutrinos influence flavor-changing processes and CP violation, providing predictions that could distinguish different new physics models.

Contribution

It offers a comprehensive analysis of flavor and CP violation correlations in SUSY GUTs, highlighting distinctive phenomenological signatures compared to other models.

Findings

Predicted correlations between leptonic and hadronic flavor processes.

Identified potential signatures to distinguish SUSY GUTs from other models.

Analyzed impacts on unitarity triangle tensions.

Abstract

Supersymmetric (SUSY) Grand Unified theories (GUTs) generally predict FCNC and CP violating processes to occur both in the leptonic and hadronic sectors. Assuming an underlying SU(5) group plus right-handed neutrinos (RN), we perform an extensive study of FCNC and CP violation, analyzing the correlations between leptonic and hadronic processes like mu-> e gamma and K-Kbar mixing, tau->mu gamma and b -> s transitions such as B_d -> phi K_s and Bs-Bsbar mixing. Moreover, we examine the impact of the considered scenario on the UT analyses, monitoring the low energy consequences implied by possible solutions to the various tensions in the present UT analyses. We compare the phenomenological implications of this NP scenario with the ones of supersymmetric flavour models finding a few striking differences that could allow to distinguish these different NP models.