2025/01/18 by De-Ye Tao, Bo Zhou, Tao, De-Ye +3
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Nuclear Theory (nucl-th) #Quantum optics and atomic interactions #Semiconductor Quantum Structures and Devices
paper · pdf · doi:10.48550/arxiv.2501.10664
openalex publication_date 2025/01/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The cluster structures of the 0+ states in 12C, including the ground state, the Hoyle state, and the recently identified 03+ and 04+ states, are analyzed to explore the cluster configurations and 3α correlations without assuming the existence of 8Be. In particular, the key quantity -- two-cluster overlap amplitudes -- is calculated for the 3α clustering channels to reveal the essential features of these 0+ states. The results clearly show the distinction between the compact structure of the ground state and the gas-like structures of the excited 0+ states. The Hoyle state exhibits the expected gas-like dominant (0S) configuration, while the 03+ state shows a more extended 3α clustering structure, which can be viewed as a breathing-like excitation of the Hoyle state, with an additional nodal structure. The 04+ state is found to have a mixed configuration, featuring a bent-arm-like structure in the S⊗ S channel and an enhanced 2α correlation in the D⊗ D channel.