6 papers
Coupled Dark Energy and Dark Matter for DESI: An Effective Guide to the Phantom Divide
Stefan Antusch, Stephen F. King, Xin Wang
Motivated by the recent Dark Energy Spectroscopic Instrument (DESI) DR2 preference for dynamical dark energy, we study interacting dark energy models in which a canonical quintesse…
Gravity tidings from domain walls: Flavour hierarchies are making waves
Stefan Antusch, Ivo de Medeiros Varzielas, Miguel Levy
Explaining the observed charged fermion mass hierarchies points to flavour symmetries inducing a suppression of the lighter species' masses. When the symmetries are global, it is e…
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…
New Physics Search at the CEPC: a General Perspective
Xiaocong Ai, Stefan Antusch, Peter Athron +211
The Circular Electron-Positron Collider (CEPC), a proposed next-generation Higgs factory, provides new opportunities to explore physics beyond the Standard Model (SM). With its cle…
A new perspective on the CMSSM: Yukawa Unification, DM and the SUSY scale
Stefan Antusch, Shaikh Saad, Vasja SusiÄ
What does third family (--) Yukawa unification, a typical prediction from embedding the Standard Model (SM) fermions in 16-plets of a GUT, imply for the…
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…