10 papers
A Model-Independent Approach to First-Order Phase Transitions, Gravitational Waves, and Primordial Magnetic Fields
Fayez Abu-Ajamieh, Nobuchika Okada
We employ a model-independent Effective Field Theory (EFT) to analyze the possibility of a strong First-Order Phase Transition (FOPT) in extensions Beyond the Standard Model (BSM).…
Good flavor search in SU(5): a machine learning approach
Fayez Abu-Ajamieh, Shinsuke Kawai, Nobuchika Okada
We revisit the fermion mass problem of the grand unified theory using machine learning techniques. The original model proposed by Georgi and Glashow is incompatible…
Detectability of Magnetar-Induced Vacuum Birefringence with IXPE and eXTP
Fayez Abu-Ajamieh
We analyze the prospects of quantitatively detecting vacuum birefringence from magnetars using the IXPE and eXTP experiments. We adopt a realistic profile to model the magnetic fie…
Novel and Updated Bounds on Flavor-violating Z Interactions in the Lepton Sector
Fayez Abu-Ajamieh, Amine Ahriche, Nobuchika Okada
We investigate the experimental bounds on the Flavor-Violating (FV) couplings of the boson to the charged leptons. In addition to the direct LHC searches for FV decays to l…
Novel and Updated Bounds on Flavor-Violating Z Interactions in the Quark Sector
Fayez Abu-Ajamieh, Amine Ahriche, Suman Kumbhakar +1
We derive bounds on the flavor-violating (FV) couplings of the boson to quarks and present future sensitivity projections. Our analysis shows that the current bounds on the FV…
Novel Bounds From The Weak Gravity and Festina Lente Conjectures
Fayez Abu-Ajamieh, Pratik Chattopadhyay, Nobuchika Okada +2
We demonstrate that the Weak Gravity Conjecture (WGC) and the Festina-Lente Conjecture (FLC) yield novel bounds on fifth force searches and milli-Charged Particles (mCPs), as well…