Alpha-like correlations in ²⁰Ne, comparison of quartetting wave function and THSR approaches

2024/02/11 by G. Röpke, Röpke, G., Xu Cao +15
Chemistry · Physics and Astronomy · #Advanced NMR Techniques and Applications #FOS: Physical sciences #Nuclear Theory (nucl-th) #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2402.07962

openalex publication_date 2024/02/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

²⁰Ne can be considered as a double-magic ¹⁶O core nucleus surrounded by four nucleons, the constituents of an α-like quartet. Similar to other nuclei (²¹²Po, ¹⁰⁴Ti, etc.) with a quartet on top of a double-magic core nucleus, significant α-like correlations are expected. Correlations in the ground state of ²⁰Ne are investigated using different approaches. The quartetting wave function approach (QWFA) predicts a large α-like cluster contribution near the surface of the nuclei. The Tohsaki-Horiuchi-Schuck-Röpke (THSR) approach describes α-like clustering in nuclear systems. The results of the QWFA in the Thomas-Fermi and shell-model approximation are compared with THSR calculations for the container model. Results for the α formation probability and the rms radii are shown.

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