Coexistence of {alpha}+{alpha}+n+n and {alpha}+t+t cluster structures in {sup 10}Be
Abstract
The coexistence of the {alpha}+{alpha}+n+n and {alpha}+t+t cluster structures in the excited states of {sup 10}Be has been discussed. In the previous analysis, all the low-lying states of {sup 10}Be were found to be well described by the motion of the two valence neutrons around two {alpha} clusters. However, the {alpha}+t+t cluster structure was found to coexist with the {alpha}+{alpha}+n+n structure around E{sub x}=15 MeV, close to the corresponding threshold. We have introduced a microscopic model to solve the coupling effect between these two configurations. The K=0 and K=1 states are generated from the {alpha}+t+t configurations due to the spin coupling of two triton clusters. The present case of {sup 10}Be is one of the few examples in which completely different configurations of triton-type ({alpha}+t+t three-center) and {alpha}-type ({alpha}+{alpha}+n+n two-center) clusters coexist in a single nucleus in the same energy region.
- Authors:
-
- Department of Physics, University of Tokyo, Hongo, 113-0033 Tokyo (Japan)
- RIKEN Nishina Center, Wako, 351-0198 Saitama (Japan)
- Department of Physics, University of Zagreb, HR-10000 Zagreb (Croatia)
- Tokai Radioactive Ion Accelerator Complex, High Energy Accelerator Research Organization (KEK), Tokai, 319-1105 Ibaraki (Japan)
- Publication Date:
- OSTI Identifier:
- 21191997
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review. C, Nuclear Physics
- Additional Journal Information:
- Journal Volume: 77; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevC.77.067301; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BERYLLIUM 10; CLUSTER MODEL; CONFIGURATION; COUPLING; EXCITED STATES; MEV RANGE; NEUTRONS; S STATES; SPIN; TRITONS; VALENCE
Citation Formats
Itagaki, N, Ito, M, Milin, M, Hashimoto, T, Ishiyama, H, and Miyatake, H. Coexistence of {alpha}+{alpha}+n+n and {alpha}+t+t cluster structures in {sup 10}Be. United States: N. p., 2008.
Web. doi:10.1103/PHYSREVC.77.067301.
Itagaki, N, Ito, M, Milin, M, Hashimoto, T, Ishiyama, H, & Miyatake, H. Coexistence of {alpha}+{alpha}+n+n and {alpha}+t+t cluster structures in {sup 10}Be. United States. https://doi.org/10.1103/PHYSREVC.77.067301
Itagaki, N, Ito, M, Milin, M, Hashimoto, T, Ishiyama, H, and Miyatake, H. 2008.
"Coexistence of {alpha}+{alpha}+n+n and {alpha}+t+t cluster structures in {sup 10}Be". United States. https://doi.org/10.1103/PHYSREVC.77.067301.
@article{osti_21191997,
title = {Coexistence of {alpha}+{alpha}+n+n and {alpha}+t+t cluster structures in {sup 10}Be},
author = {Itagaki, N and Ito, M and Milin, M and Hashimoto, T and Ishiyama, H and Miyatake, H},
abstractNote = {The coexistence of the {alpha}+{alpha}+n+n and {alpha}+t+t cluster structures in the excited states of {sup 10}Be has been discussed. In the previous analysis, all the low-lying states of {sup 10}Be were found to be well described by the motion of the two valence neutrons around two {alpha} clusters. However, the {alpha}+t+t cluster structure was found to coexist with the {alpha}+{alpha}+n+n structure around E{sub x}=15 MeV, close to the corresponding threshold. We have introduced a microscopic model to solve the coupling effect between these two configurations. The K=0 and K=1 states are generated from the {alpha}+t+t configurations due to the spin coupling of two triton clusters. The present case of {sup 10}Be is one of the few examples in which completely different configurations of triton-type ({alpha}+t+t three-center) and {alpha}-type ({alpha}+{alpha}+n+n two-center) clusters coexist in a single nucleus in the same energy region.},
doi = {10.1103/PHYSREVC.77.067301},
url = {https://www.osti.gov/biblio/21191997},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 6,
volume = 77,
place = {United States},
year = {Sun Jun 15 00:00:00 EDT 2008},
month = {Sun Jun 15 00:00:00 EDT 2008}
}