English

Data-driven analysis of a SUSY GUT of flavour

High Energy Physics - Phenomenology 2022-06-07 v3

Abstract

We present a data-driven analysis of a concrete Supersymmetric (SUSY) Grand Unified Theory (GUT) of flavour, based on SU(5)×S4SU(5)\times S_4, which predicts charged fermion and neutrino mass and mixing, and where the mass matrices of both the Standard Model and the Supersymmetric particles are controlled by a common symmetry at the GUT scale. This framework also predicts non-vanishing non-minimal flavour violating effects, motivating a sophisticated data-driven parameter analysis to uncover the signatures and viability of the model. This computer-intensive Markov-Chain-Monte-Carlo (MCMC) based analysis includes a large range of flavour as well as dark matter and SUSY observables, predicts distributions for a range of physical quantities which may be used to test the model. The predictions include maximally mixed sfermions, μeγ\mu\rightarrow e \gamma close to its experimental limit and successful bino-like dark matter with nearby winos (making direct detection unlikely), implying good prospects for discovering winos and gluinos at forthcoming collider runs. The results also demonstrate that the Georgi-Jarlskog mechanism does not provide a good description of the splitting of down type quark masses and charged leptons, while neutrinoless double beta decay is predicted at observable rates.

Keywords

Cite

@article{arxiv.2111.10199,
  title  = {Data-driven analysis of a SUSY GUT of flavour},
  author = {Jordan Bernigaud and Adam K. Forster and Björn Herrmann and Stephen F. King and Werner Porod and Samuel J. Rowley},
  journal= {arXiv preprint arXiv:2111.10199},
  year   = {2022}
}

Comments

35 pages, three .spc files corresponding to the benchmarks are attached, wording improved references added, matches journal version