Neutron star in presence of torsion-dilaton field

TL;DR

This paper explores how propagating torsion in Saa's gravity model affects neutron star structure, showing torsion reduces gravitational influence and alters star masses, with implications for experimental consistency.

Contribution

It introduces a detailed analysis of neutron stars within Saa's torsion-inclusive gravity model, highlighting the impact of torsion on stellar properties and experimental viability.

Findings

Torsion decreases the effective gravitational force in neutron stars.

Neutron star masses vary significantly with different equations of state.

The model shows inconsistencies with key gravitational experiments.

Abstract

We develop the general theory of stars in Saa's model of gravity with propagating torsion and study the basic stationary state of neutron star. Our numerical results show that the torsion force decreases the role of the gravity in the star configuration leading to significant changes in the neutron star masses depending on the equation of state of star matter. The inconsistency of the Saa's model with Roll-Krotkov-Dicke and Braginsky-Panov experiments is discussed.