Details

Autor(en) / Beteiligte

• Starastsin, Viktar
• Demyanova, Alla
• Danilov, Andrey
• Ogloblin, Alexey
• Dmitriev, Sergey
• Goncharov, Sergey
• Lin, Cheng-Jian
• Yang, Lei
• Wang, Dong-Xi
• Jia, Hui-Ming
• Zhong, Fu-Peng
• Yang, Feng
• Yao, Yong-Jin
• Zhong, Shan-Hao
• Wen, Pei-Wei
• Ma, Nan-Ru
• Zhang, Huan-Qiao
• Janseitov, Daniyar
• Burtebayev, Nassurlla
• Khlebnikov, Sergey
• Adamian, Gurgen
• Antonenko, Nikolai

Titel

Structures of the excited states in 9Be studied by scattering of 23 MeV deuterons

Ist Teil von

• The European physical journal. A, Hadrons and nuclei, 2021, Vol.57 (12)

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• An experiment on the scattering of 23 MeV deuterons by 9 Be 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 K π = 1 2 + based on the 1.68 MeV, 1 2 + state is formed by the 3.05 MeV, 5 2 + ; 4.70 MeV, 3 2 + and 6.76 MeV, 9 2 + states. It was proposed that the 3rd band ( K π = 1 2 - ) based on the 2.78 MeV, 1 2 - state may be formed by the 5.59 MeV, 3 2 - and 7.94 MeV, 5 2 - states. The radii of these band states ( K π = 1 2 + and K π = 1 2 - ) are increased compared to the ground state. Besides, it is found that the 3.82 MeV state has J π = 3 2 - and does not belong to any of the rotational bands considered above. Possibly, it is formed as a one-particle state near the excited 8 Be core with the spin J c = 2.