Abstract
The structure of the unbound proton-rich isotope 19Na was studied in resonance elastic scattering of a radioactive 18Ne beam on a proton target using the thick-target inverse-kinematics method. The experiment covered the excitation energy range from 0.5 to 2.7 MeV in c.m.s. Only one state of 19Na (the second excited state) was observed. A combined R-matrix and potential model analysis was performed. The spin and parity assignment of this second excited state was confirmed to be 1/2+. We show that the position of the 1/2+ state significantly affects the reaction rate through that state, but the total reaction rate remains unchanged since the 18Ne(2p, γ) proceeds mostly via the ground and first excited states in 19Na at stellar temperatures.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. Cerny et al., Phys. Rev. Lett. 22, 612 (1969).
C. Angulo et al., Phys. Rev. C 67, 014 308 (2003).
M. Y. Lee et al., Nucl. Instrum. Methods Phys. Res. A 422, 536 (1999).
F. Oliveira et al., Eur. Phys. J. A 24, 237 (2005).
K. P. Artemov et al., Sov. J. Nucl. Phys. 52, 408 (1990).
J. Gorres et al., Phys. Rev. C 51, 392 (1995).
A. Volya et al., Phys. Rev. Lett. 94, 052 501 (2005); A. Volya, private communication.
V. Z. Goldberg et al., Phys. Rev. C 69, 031 302(R) (2004).
D. R. Tilley, Nucl. Phys. A 564, 1 (1993).
D. R. Tilley, Nucl. Phys. A 595, 1 (1995).
B. A. Brown et al., MSU-NSCL Report No. 524 (1986).
E. K. Warburton et al., Phys. Rev. C 46, 923 (1992).
W. A. Fowler et al., Annu. Rev. Astron. Astrophys. 5, 525 (1967).
Author information
Authors and Affiliations
Additional information
The text was submitted by the authors in English.
Rights and permissions
About this article
Cite this article
Skorodumov, B.B., Rogachev, G.V., Boutachkov, P. et al. Investigation of the 19Na nucleus via resonance elastic scattering. Phys. Atom. Nuclei 69, 1979–1984 (2006). https://doi.org/10.1134/S1063778806120015
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1134/S1063778806120015