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March 24, 20260 citationsOpen Access

CCEGA Paper 16: Threshold Gravity and the Decoupling of Tidal Deformability from Maximum Mass

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MSMarc López Sánchez

Key Points

  • To derive a new effective gravitational coupling and illustrate its implications for neutron star properties.
  • Derived power-law effective coupling from Sen tachyon Lagrangian
  • Identified a critical density threshold for decoupling of properties
  • Applied predictions to neutron stars including PSR J0952−0607
  • Introduced a hard density threshold at ρ_c, decoupling tidal deformability from maximum mass
  • Predicted Λ(1.4M☉) equal to Λ_GR, supporting current models
  • Estimated maximum mass M_max at 2.357M☉, consistent with observed neutron star PSR J0952−0607 at 0.06σ

Abstract

Derives the power-law effective coupling Gₑff = G (ρc/ρ) ^2/3 from the Sen tachyon Lagrangian L ∝ φ^1/2 identified in Paper 13. Shows that this form introduces a hard density threshold at ρc, decoupling tidal deformability from maximum mass — a combination forbidden in GR. For ρc ≃ 7ρₙuc, CCEGA predicts Λ (1. 4M☉) = ΛGR while Mₘax = 2. 357M☉, consistent with PSR J0952−0607 at 0. 06σ. First CCEGA prediction falsifiable before 2035. Keywords: neutron stars, effective gravitational coupling, tidal deformability, maximum mass, Sen tachyon, extra dimensions, CCEGA, PSR J0952-0607

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Cite This Study

Marc López Sánchez (2026) studied this question.

synapsesocial.com/papers/69c2298daeb5a845df0d438dhttps://doi.org/10.5281/zenodo.19161006
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