Flavour Structure of GUTs and Uncertainties in Proton Lifetime Estimates

Research paper by Helena Kolešová, Michal Malinský

Indexed on: 29 Dec '16Published on: 29 Dec '16Published in: arXiv - High Energy Physics - Phenomenology


We study the flavour aspects of proton lifetime estimates in simple Grand unified models paying particular attention to their potential fragility due to the notorious lack of control of some of the key parameters governing the relevant hard-process amplitudes. Theoretical uncertainties inherent to the most common approaches to dealing with these issues in renormalizable models are studied and their robustness with respect to a wide class of Planck-induced flavour effects is estimated.