Towards Ghost-Free Gravity and Standard Model

TL;DR

This paper introduces a higher derivative gravity model that remains ghost-free in the electroweak symmetry-breaking state, linking fundamental constants to TeV-scale physics and exploring supersymmetric extensions.

Contribution

It proposes a novel ghost-free higher derivative gravity model with a supersymmetric extension, connecting gravity parameters to TeV-scale physics.

Findings

Gravity and dark energy depend on TeV scale and coupling constants.

The model is ghost-free in the electroweak symmetry-breaking state.

Supersymmetric extension of the model is considered.

Abstract

This paper presents a new higher derivative gravity which in spontaneous breaking electroweak symmetry state does not have ghost in gravity sector. We show that Newton constant of the gravity and dark energy density they depend on the fundamental TeV scale and the coupling constant at the quadratic curvature term. We consider the supersymmetric extension of this model.