Stable Three Generation Standard--like Model From a Tachyonic Ten Dimensional Heterotic--String Vacuum

TL;DR

This paper constructs a three-generation standard-like model from a ten-dimensional tachyonic heterotic string vacuum, offering a novel approach to string phenomenology with fixed moduli and potential insights into string compactifications.

Contribution

It presents a new three-generation model derived from a tachyonic vacuum, comparing its features to other heterotic-string models and discussing moduli stabilization.

Findings

All geometrical moduli are perturbatively fixed.

The dilaton may be stabilized by hidden sector non-perturbative effects.

The model provides a viable string phenomenology framework.

Abstract

Recently it was proposed that the ten dimensional tachyonic superstring vacua may serve as good starting points for the construction of viable phenomenological models. Such phenomenologically viable models enlarge the space of possible string solutions, and may offer novel insight into some of the outstanding problems in string phenomenology. In this paper we present a three generation standard--like model that may be regarded as a compactification of a ten dimensional tachyonic vacuum. We discuss the features of the model as compared to a similar model that may be regarded as compactification of the ten dimensional $SO(16)\times SO(16)$ heterotic-string. We further argue that in the four dimensional model all the geometrical moduli are fixed perturbatively, whereas the dilaton may be fixed by hidden sector non--perturbative effects.