Two measurements of the 22Na+p resonant scattering via thick-target inverse-kinematics method

Y. B. Wang, S. J. Jin, L. Jing, Z. Y. Han, X. X. Bai, B. Guo, Y. J. Li, Z. H. Li, G. Lian, J. Su, L. J. Sun, S. Q. Yan, S. Zeng, W. P. Liu, H. Yamaguchi, S. Kubono, J. Hu, D. Kahl, J. J. He, J. S. WangX. D. Tang, S. W. Xu, P. Ma, N. T. Zhang, Z. Bai, M. R. Huang, B. L. Jia, S. L. Jin, J. B. Ma, S. B. Ma, W. H. Ma, Y. Y. Yang, L. Y. Zhang, H. S. Jung, J. Y. Moon, C. S. Lee, T. Teranishi, H. W. Wang, H. Ishiyama, N. Iwasa, T. Komatsubara, B. A. Brown

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1 Citation (Scopus)

Abstract

22Na is an important isotope for the study of extinct radioactivity, meanwhile its sufficiently long half life provides the possibility to observe live 22Na in nearby nova explosions. The 22Na(p,γ) 23Mg is one of the key reactions that influence the 22Na abundance in nova ejecta. To study the proton resonant states in 23Mg relevant to the astrophysical 22Na(p,γ) 23Mg reaction rates, two measurements have been carried out at the CRIB separator of University of Tokyo, and the RIBLL secondary beamline in Lanzhou, respectively. The 22Na secondary beam was produced via the 1H(22Ne, 22Na)n charge exchange reaction. Thick-target inverse-kinematics method is applied to obtain the excitation function of 22Na+p elastic scattering. Extended gas target and solid state polyethylene foil were used in the two measurements, respectively, to map the different excitation energy region of the compound nucleus 23Mg. Several new resonant levels are observed and their contribution to the 22Na(p,γ) 23Mg reaction rate is evaluated.

Original languageEnglish
Article number04010
JournalEPJ Web of Conferences
Volume109
DOIs
Publication statusPublished - 2016 Feb 12
Event13th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2015 - Beijing, China
Duration: 2015 Jun 242015 Jun 27

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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