17 citations · 66 across the 13 of their papers we have counts for
13 papers
Updated Running Quark and Lepton Parameters at Various Scales
Stefan Antusch, Kevin Hinze, Shaikh Saad
In the light of the recent Particle Data Group (PDG) release, we revisit the running quark and lepton Yukawa couplings, together with the quark mixing parameters, across a range of…
Metastable Cosmic Strings and Gravitational Waves from Flavour Symmetry Breaking
Stefan Antusch, Kevin Hinze, Shaikh Saad
Metastable cosmic strings (MSCSs) are among the best-fitting explanations of the 2023 pulsar timing array (PTA) signal for gravitational waves at nanohertz frequencies. We propose…
Explaining PTA Results by Metastable Cosmic Strings from SO(10) GUT
Stefan Antusch, Kevin Hinze, Shaikh Saad
In a recent paper (see https://doi.org/10.1103/PhysRevD.108.095053), we have demonstrated that the 2023 PTA results, which hint at a stochastic gravitational wave (GW) background a…
Probing SUSY at Gravitational Wave Observatories
Stefan Antusch, Kevin Hinze, Shaikh Saad +1
Under the assumption that the recent pulsar timing array evidence for a stochastic gravitational wave (GW) background at nanohertz frequencies is generated by metastable cosmic str…
Leptoquark-Mediated Two-Loop Neutrino Mass in Unified Theory
Kevin Hinze, Shaikh Saad
Scalar leptoquarks naturally arise within unified theories, offering a promising avenue for addressing one of the most significant challenges of the Standard Model--the existence o…
A Generalised Missing Partner Mechanism for SU(5) GUT Inflation
Stefan Antusch, Kevin Hinze, Shaikh Saad +1
We generalise the Missing Partner Mechanism to split the electron-like states from the coloured ones of vectorlike SU(5) 10-plets without fine-tuning. Together with the extra light…
Minimal GUTs with vectorlike fermions
Stefan Antusch, Kevin Hinze, Shaikh Saad
In this work, we attempt to answer the question, "What is the minimal viable renormalizable GUT with representations no higher than adjoints?". We find that an mode…
Singling out SO(10) GUT models using recent PTA results
Stefan Antusch, Kevin Hinze, Shaikh Saad +1
In this work, we construct promising model building routes towards SO(10) GUT inflation and examine their ability to explain the recent PTA results hinting at a stochastic gravitat…
Quark-lepton Yukawa ratios and nucleon decay in SU(5) GUTs with type-III seesaw
Stefan Antusch, Kevin Hinze, Shaikh Saad
We consider an extension of the Georgi-Glashow SU(5) GUT model by a 45-dimensional scalar and a 24-dimensional fermionic representation, where the latter leads to the generation of…
Fully Testable Axion Dark Matter within a Minimal GUT
Stefan Antusch, Ilja Doršner, Kevin Hinze +1
We present a minimal Grand Unified Theory model, based on gauge symmetry and a global Peccei-Quinn symmetry, that predicts the existence of an ultralight axion dark…
Implications of the Zero 1-3 Flavour Mixing Hypothesis: Predictions for and
Stefan Antusch, Kevin Hinze, Shaikh Saad
We revisit mixing sum rule relations in the lepton and quark sectors under the assumption that the 1-3 elements of the flavour mixing matrices () are zero…
Viable quark-lepton Yukawa ratios and nucleon decay predictions in GUTs with type-II seesaw
Stefan Antusch, Kevin Hinze, Shaikh Saad
We investigate the viability of predictive schemes for quark-lepton Yukawa ratios and nucleon decay in non-supersymmetric SU(5) Grand Unified Theories (GUTs) where neutrino masses…
Nucleon decay in a minimal non-SUSY GUT with predicted quark-lepton Yukawa ratios
Stefan Antusch, Kevin Hinze
We investigate the predictions for various nucleon decay rates and their ratios in non-supersymmetric SU(5) Grand Unified Theories (GUTs) where the masses of the third and second f…