What question did this study set out to answer?

The aim is to identify a common underlying cause for three observational anomalies in particle physics, cosmology, and astrophysics.

April 30, 2026Open Access

P44 v3: A Single Scale Explains Three Anomalies — LHC Flavor, Cosmological Bounce, and Neutron Star Structure

Key Points

The aim is to identify a common underlying cause for three observational anomalies in particle physics, cosmology, and astrophysics.
Analyzed LHCb P'5 anomalies (3.2σ) alongside cosmological bounce temperature and neutron star mass gap observations.
Utilized brane-world geometry (Randall-Sundrum + radion) to derive the characteristic density scale.
Predicted outcomes related to gravitational wave echoes and tidal deformability based on theoretical framework.
Demonstrated a characteristic density scale of ρc = 7.4 ρnuc.
Predicted gravitational wave echoes at 14 ms, expected availability from the Einstein Telescope in 2035.
Established a mass boundary at 11.8 M☉ related to neutron stars.

Abstract

Demonstrates phenomenological congruence across three independent observational domains: LHCb P'5 anomalies (3.2σ), cosmological bounce temperature (Tbounce ≈ TQCD), and neutron star intermediate-mass gap (GWTC-4.0). All three point to a single underlying cause: characteristic density scale ρc = 7.4 ρnuc in brane-world (Randall-Sundrum + radion) geometry. Makes testable predictions: gravitational wave echoes at 14 ms (Einstein Telescope 2035+), mass boundary at 11.8 M☉, tidal deformability refinement. Framework is conditional and falsifiable.

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Marc López Sánchez

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P44 v3: A Single Scale Explains Three Anomalies — LHC Flavor, Cosmological Bounce, and Neutron Star Structure

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Abstract

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