Structures of the excited states in 9 Be studied by scattering of 23 MeV deuterons
Starastsin V. Demyanova A. Danilov A. Ogloblin A. Dmitriev S. Goncharov S. Lin C.-J. Yang L. Wang D.-X. Jia H.-M. Zhong F.-P. Yang F. Yao Y.-J. Zhong S.-H. Wen P.-W. Ma N.-R. Zhang H.-Q. Janseitov D. Burtebayev N. Khlebnikov S. Adamian G. Antonenko N.
December 2021Springer Science and Business Media Deutschland GmbH
European Physical Journal A
2021#57Issue 12
An experiment on the scattering of 23 MeV deuterons by 9Be nucleus was carried out. Differential scattering cross sections are obtained for the following states: g.s., 1.68 MeV, 2.43 MeV, 2.78 MeV, 3.05 MeV, 3.82 MeV, 4.70 MeV, 5.59 MeV, 6.38 MeV, 6.76 MeV and 7.94 MeV. The obtained data were analyzed using the distorted wave Born approximation (DWBA) and modified diffraction model (MDM). It was confirmed that the positive parity band Kπ = 12+ based on the 1.68 MeV, 12+ state is formed by the 3.05 MeV, 52+; 4.70 MeV, 32+ and 6.76 MeV, 92+ states. It was proposed that the 3rd band (Kπ = 12-) based on the 2.78 MeV, 12- state may be formed by the 5.59 MeV, 32- and 7.94 MeV, 52- states. The radii of these band states (Kπ = 12+ and Kπ = 12-) are increased compared to the ground state. Besides, it is found that the 3.82 MeV state has Jπ = 32- and does not belong to any of the rotational bands considered above. Possibly, it is formed as a one-particle state near the excited 8Be core with the spin Jc = 2.
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National Research Center Kurchatov Institute, Akademika Kurchatova pl. 1, Moscow, 123182, Russian Federation
M. V. Lomonosov Moscow State University, Moscow, 119991, Russian Federation
China Institute of Atomic Energy, P.O. Box 275(10), Beijing, 102413, China
Department of Physics, Guangxi Normal University, Guilin, 541004, China
School of Physics, Beihang University, Beijing, 100191, China
JINR, Dubna, 141700, Moscow Region, Russian Federation
Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
V. G. Khlopin Radium Institute, St. Petersburg, 194021, Russian Federation
National Research Center Kurchatov Institute
M. V. Lomonosov Moscow State University
China Institute of Atomic Energy
Department of Physics
School of Physics
JINR
Institute of Nuclear Physics
Al-Farabi Kazakh National University
V. G. Khlopin Radium Institute
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