학술논문
Validation of the $^{10}\mathrm{Be}$ Ground-State Molecular Structure Using $^{10}\mathrm{Be}(p,p\alpha)^{6}\mathrm{He}$ Triple Differential Reaction Cross-Section Measurements
Document Type
Working Paper
Author
Li, P. J.; Beaumel, D.; Lee, J.; Assié, M.; Chen, S.; Franchoo, S.; Gibelin, J.; Hammache, F.; Harada, T.; Kanada-En'yo, Y.; Kubota, Y.; Leblond, S.; Liang, P. F.; Lokotko, T.; Lyu, M.; Marqués, F. M.; Matsuda, Y.; Ogata, K.; Otsu, H.; Rindel, E.; Stuhl, L.; Suzuki, D.; Togano, Y.; Tomai, T.; Xu, X. X.; Yoshida, K.; Zenihiro, J.; Achouri, N. L.; Aumann, T.; Baba, H.; Cardella, G.; Ceruti, S.; Stefanescu, A. I.; Corsi, A.; Frotscher, A.; Gao, J.; Gillibert, A.; Inaba, K.; Isobe, T.; Kawabata, T.; Kitamura, N.; Kobayashi, T.; Kondo, Y.; Kurihara, A.; Liu, H. N.; Miki, H.; Nakamura, T.; Obertelli, A.; Orr, N. A.; Panin, V.; Sasano, M.; Shimada, T.; Sun, Y. L.; Tanaka, J.; Trache, L.; Tudor, D.; Uesaka, T.; Wang, H.; Yamada, H.; Yang, Z. H.; Yasuda, M.
Source
Phys. Rev. Lett. 131 (2023) 212501
Subject
Language
Abstract
The cluster structure of the neutron-rich isotope $^{10}$Be has been probed via the $(p,p\alpha)$ reaction at 150 MeV/nucleon in inverse kinematics and in quasifree conditions. The populated states of $^{6}$He residues were investigated through missing mass spectroscopy. The triple differential cross-section for the ground-state transition was extracted for quasifree angle pairs ($\theta_{p}$, $\theta_{\alpha}$) and compared to distorted-wave impulse approximation reaction calculations performed in a microscopic framework using successively the Tohsaki-Horiuchi-Schuck-R\"opke product wave-function and the wave-function deduced from Antisymmetrized Molecular Dynamics calculations. The remarkable agreement between calculated and measured cross-sections in both shape and magnitude validates the molecular structure description of the $^{10}$Be ground-state, configured as an $\alpha$-$\alpha$ core with two valence neutrons occupying $\pi$-type molecular orbitals.
Comment: 7 pages, 3 figures, 1 tables
Comment: 7 pages, 3 figures, 1 tables