9 papers · 1 filter
Truth, beauty, and goodness in grand unification: a machine learning approach
Shinsuke Kawai, Nobuchika Okada
We investigate the flavour sector of the supersymmetric Grand Unified Theory (GUT) model using machine learning techniques. The minimal model is known to predict fe…
Aspects of Non-local QED and the Weak Gravity Conjecture
Fayez Abu-Ajamieh, Nobuchika Okada, Sudhir K. Vempati
We use the Weak Gravity Conjecture (WGC) to investigate the impact of charge dequantization arising from non-local QED on the scale of non-locality of neutrinos. We find this scale…
Unified Origin of Curvature Perturbation and Baryon Asymmetry of the Universe
Anish Ghoshal, Abhishek Naskar, Nobuchika Okada
We propose a unified framework that describes both the curvaton mechanism for generating primordial density fluctuations and the Affleck-Dine (AD) mechanism for baryogenesis. By in…
Non-perturbative Origin of the Electroweak Scale with Dyson-Schwinger: Fermionic Mass Gap and Higher-order Excitations
Marco Frasca, Anish Ghoshal, Nobuchika Okada
We study interaction of a fermion field with a scalar field and analyze the spectrum of the theory obtained in this way. It is shown that due to non-perturbative dynamics i…
Non-perturbative Origin of Electroweak Scale via Higgs-portal: Dyson-Schwinger in Conformally Invariant Scalar Sector
Marco Frasca, Anish Ghoshal, Nobuchika Okada
We investigate conformally extended Standard Model with a hidden scalar . It is shown that due to non-perturbative dynamics in the hidden sector, develops a vacuum expectati…
The Generalized Scalar Weak Gravity Conjecture and its Implications
Fayez Abu-Ajamieh, Nobuchika Okada, Sudhir K. Vempati
We propose a generalized formulation of the Scalar Weak Gravity Conjecture (SWGC) based on the analogy with the derivation of the Gauge Weak Gravity Conjecture (GWGC). We discuss s…
Double Inflation in Classically Conformal Model
Anish Ghoshal, Nobuchika Okada, Arnab Paul +1
It has recently been shown in Ref. [1] that the double-inflation scenario based on the Coleman-Weinberg potential can successfully generate primordial black holes (PBHs) with the i…
Non-perturbative Origin of the Electroweak Scale: RGE in Strongly-coupled Dark Gauge Theories via Dyson-Schwinger
Marco Frasca, Anish Ghoshal, Nobuchika Okada
We propose a novel pathway to generate the electroweak scale (EW) via non-perturbative dynamics of a dark gauge sector based on the SU(N) gauge group. Imposing the scale invariance…
Implications of the Weak Gravity Conjecture on Charge, Kinetic Mixing, the Photon Mass, and More
Fayez Abu-Ajamieh, Nobuchika Okada, Sudhir K Vempati
We investigate several phenomenological implications of the Weak Gravity Conjecture (WGC). We find that the WGC implies that the SM neutrinos must be electrically neutral, that the…