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arXiv · 2602.00529

General Radial-Composition Correlations in Two-Component Many-Body Systems

Y. Lei
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Abstract

The linear correlation between RMS radius difference and composition asymmetry in two-component many-body systems is a robust feature observed across nuclear experiments, diverse nuclear structural models, molecular dynamic simulations for bimetallic clusters, and galactic modeling with self-interacting dark matter. We identify the short-range attractive central force as the key ingredient for its emergence, a mechanism underpinned by the coordinate transformation under low-energy harmonic-oscillator approximation, the virial theorem, and Pauli principle/hard core potential, in many-fermion system/classic many-body system.

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Y. Lei. 2026-01-31. General Radial-Composition Correlations in Two-Component Many-Body Systems. https://arxiv.org/abs/2602.00529

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