18F alpha cluster structure in the resonant 14N+α scattering

• Published in: The European physical journal. A, Hadrons and nuclei Vol. 60; no. 11
• Main Authors: Nurmukhanbetova, A. K., Goldberg, V. Z., Volya, A., Nauruzbayev, D. K., Rogachev, G. V.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 06-11-2024; Springer Nature B.V
• Subjects: Alpha particles; Alpha rays; Clusters; Configuration interaction; Elastic analysis; Elastic scattering; Excitation; Hadrons; Heavy Ions; Nuclear Fusion; Nuclear Physics; Particle and Nuclear Physics; Physics; Physics and Astronomy; Regular Article - Experimental Physics; Resonance scattering
• ISSN: 1434-6001; 1434-601X
• DOI: 10.1140/epja/s10050-024-01434-z

The resonant
14
N+
α
particle scattering was studied in the
18
F excitation region from 6.5 to 9 MeV at Astana cyclotron using the TTIK approach. The excitation functions for the elastic
14
N+
α
scattering were analyzed in the framework of
R
matrix calculations. The observed strong alpha cluster structure in
18
F is compared with that in
18
O. While the general agreement of the structure in both nuclei is confirmed, a striking difference for
l
= 4 resonances is found. The experimental results are compared with configuration interaction calculations.