Extracting (n,g) direct capture cross sections from Coulomb dissociation: application to ${}^{14}$C(n,$\gamma$)${}^{15}$C

Abstract

A methodology for extracting neutron direct capture rates from Coulomb dissociation data is developed and applied to the Coulomb dissociation of 15C on 208Pb at 68 MeV/nucleon. Full Continuum Discretized Coupled Channel calculations are performed and an asymptotic normalization coefficient is determined from a fit to the breakup data. Direct neutron capture calculations using the extracted asymptotic normalization coefficient provide $(n,\gamma )$ cross sections consistent with direct measurements. Our results show that the Coulomb Dissociation data can be reliably used for extracting the cross section for 14C(n,g)15C if the appropriate reaction theory is used. The resulting error bars are of comparable magnitude to those from the direct measurement. This procedure can be used more generally to extract capture cross sections from breakup reactions whenever the desired capture process is fully peripheral.

submitted to Phys. Rev. C (R)

References in corpus (8)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Coulomb and nuclear breakup of a halo nucleus 11Be
• The 14C(n,g) cross section between 10 keV and 1 MeV
• Scaling and Interference in the Dissociation of Halo Nuclei
• Core Transitions in the Breakup of Exotic Nuclei
• Peripherality of breakup reactions
• Influence of the projectile description on breakup calculations

Cited by in corpus (14)

• Solar fusion cross sections II: the pp chain and CNO cycles
• Radiative capture of nucleons at astrophysical energies with single-particle states
• Comparing non-perturbative models of the breakup of neutron-halo nuclei
• Radiative Neutron Capture on Carbon-14 in Effective Field Theory
• ${}^{15}$C: from Halo-EFT structure to the study of transfer, breakup and radiative-capture reactions
• Coulomb Dissociation of ${}^{15}$C and Radiative Neutron Capture on ${}^{14}$C
• Radiative neutron capture on 9be, 14c, 14n, 15n and 16o at thermal and astrophysical energies
• Determining $B(E1)$ distributions of weakly bound nuclei from breakup cross sections using Continuum Discretized Coupled Channels calculations. Application to ${}^{11}$Be
• Neutron capture by 15N nucleus at astrophysical energies
• Halo effective field theory analysis of one-neutron knockout reactions of ${}^{11}\mathrm{Be}$ and ${}^{15}\mathrm{C}$
• Reconciling Coulomb breakup and neutron radiative capture
• The complete quantification of parametric uncertainties in (d,p) transfer reactions
• Detailed Study of the Eikonal Reaction Theory for the breakup of one-neutron halo nuclei
• Radiative neutron capture on 14C and 14N