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Title: 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:
 [1];  [2];  [3]; ; ;  [4]
  1. Department of Physics, University of Tokyo, Hongo, 113-0033 Tokyo (Japan)
  2. RIKEN Nishina Center, Wako, 351-0198 Saitama (Japan)
  3. Department of Physics, University of Zagreb, HR-10000 Zagreb (Croatia)
  4. 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}
}