On the D-branes Standard-like Models

TL;DR

This paper explores a D-brane-based extension of the Standard Model, analyzing its mass spectrum, including gauge bosons, fermions, and neutrinos, and relating the model scales to experimental data.

Contribution

It introduces a D-brane inspired Standard Model extension with two Higgs doublets and investigates its mass spectrum and scale implications.

Findings

Fermion masses exhibit a hierarchy influenced by Higgs VEVs.

The model accounts for small neutrino masses.

The involved energy scales are consistent with known experimental data.

Abstract

Based on the low-energy effective field theory of D-branes, the mass spectrum of an extended Standard Model with two-Higgs doublets used to generate all the mass terms is investigated. Besides the gauge bosons, the fermion mass spectrum is weighted by the Higgs VEVs with a partial hierarchy and the smallness of neutrino masses is exhibited. With reference to the known data, the involved scales of the model are approached.