14 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…
Disentangling new physics with quantum entanglement in production at future lepton colliders
Masato Arai, Kentarou Mawatari, Nobuchika Okada
We investigate quantum entanglement and Bell-inequality violation in top-antitop pair production at future lepton colliders such as the International Linear Collider (ILC) and mult…
Signatures of Long-Lived Heavy Neutral Leptons from Neutrinophilic Charged Higgs Pair Production at the LHC
Nobuchika Okada, Prasenjit Sanyal, Ravindra Kumar Verma
In the neutrinophilic Higgs doublet framework, the neutrino Dirac Yukawa couplings can be sizable because of the small vacuum expection value of the extra Higgs doublet, even for a…
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…