Skip to Main content Skip to Navigation
Journal articles

Asymptotic normalization coefficients and continuum coupling in mirror nuclei

Abstract : Background: An asymptotic normalization coefficient (ANC) characterizes the asymptotic form of a one-nucleon overlap integral required for description of nucleon-removal reactions. Purpose: We investigate the impact of the particle continuum on proton and neutron ANCs for mirror systems from $p$- and $sd$-shell regions. Method: We use the real-energy and complex-energy continuum shell model approaches. Results: We studied the general structure of the single-particle ANCs as a function of the binding energy and orbital angular momentum. We computed ANCs in mirror nuclei for different physical situations, including capture reactions to weakly-bound and unbound states. Conclusions: We demonstrated that the single-particle ANCs exhibit generic behavior that is different for charged and neutral particles. We verified the previously proposed relation [N.K. Timofeyuk, R.C. Johnson, and A.M. Mukhamedzhanov, Phys. Rev. Lett. 91, 232501 (2003); Phys. Rev. Lett. 97, 069904(E) (2006); N. K. Timofeyuk and P. Descouvemont, Phys. Rev. C 72, 064324 (2005)] between proton and neutron mirror ANCs. We find minor modifications if the spectroscopic strength is either localized in a single state or broadly distributed. For cases when several states couple strongly to the decay channel, these modifications may reach 30%.
Complete list of metadatas

http://hal.in2p3.fr/in2p3-00680716
Contributor : Michel Lion <>
Submitted on : Tuesday, March 20, 2012 - 9:03:35 AM
Last modification on : Thursday, February 1, 2018 - 1:25:44 AM

Links full text

Identifiers

Collections

Citation

J. Okołowicz, N. Michel, W. Nazarewicz, M. Ploszajczak. Asymptotic normalization coefficients and continuum coupling in mirror nuclei. Physical Review C, American Physical Society, 2012, 85, pp.064320. ⟨10.1103/PhysRevC.85.064320⟩. ⟨in2p3-00680716⟩

Share

Metrics

Record views

210