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This research aims to present a structural framework for understanding the depletion of dark matter and dark energy in cosmology.

February 25, 2026Open Access

Dark Matter Depletion into Cosmic Vacuum and Cosmic Energy Depletion into Dark Energy: A Structural Brane–String Framework Consistent with DESI

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This research aims to present a structural framework for understanding the depletion of dark matter and dark energy in cosmology.
Develop a structural brane–string model (DCM/DSM) for dark matter and dark energy dynamics.
Utilize DESI DR2 BAO and Planck 2015 data to derive a depletion exponent δ.
Model energy density modifications for dark matter (ρDM(z)) and analyze implications for cosmological tensions.
Derived depletion exponent δ = 0.30 ± 0.07 utilizing observational data.
Explained the effective dark energy density excess and S8 tension through proposed models.
Provided a reproducible pipeline for future cosmological data analysis with DESI, Euclid, and Roman missions.

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This model predicts dark matter and cosmic energy depletion in cosmology, suggesting new insights into cosmic phenomena.

Dahli Chabane (2026) studied this question.

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