학술논문
Resonances in 11 C observed in the 4 He(7 Be, &agr;)7 Be and 4 He(7 Be, p)10 B reactions.
Document Type
Article
Author
Source
Subject
*NUCLEAR reactions
*HELIUM
*BINDING energy
*BERYLLIUM
*SCATTERING (Physics)
*CLEBSCH-Gordan coefficients
*CLUSTER theory (Nuclear physics)
*NUCLEAR structure
*
*
*
*
*
*
*
Language
ISSN
0556-2813
Abstract
Measurements of the 4He(7Be,&agr;)7Be and 4He(7Be, p)10B reactions were performed using 7Be beam energies of 7.1 and 23 MeV and a helium-4 target, employing the thick target technique. Resonances were observed between Ex(11C) = 8.6 to 13.8 MeV. An matrix analysis was performed to characterize the spins and partial widths. This analysis showed that the observed sequence of states was consistent with that found for 7Li + &agr; resonant scattering populating resonances in 11B. A comparison of the proposed partial widths for decay with the Wigner limit indicates that several of the states are associated with cluster-like structures. [ABSTRACT FROM AUTHOR]