Asymptotic normalization coefficients for8B→7Be+pfrom a study of8Li→7Li+n

2003/04/21 by L. Trache, A. Azhari, F. Carstoiu +12
Physics and Astronomy · #Neutrino Physics Research #Nuclear physics research studies #Particle physics theoretical and experimental studies #nucl-ex

paper · pdf · doi:10.1103/physrevc.67.062801

published as Phys.Rev. C67 (2003) 062801 · 5 pages, 3 figures, 2 tables

arxiv created 2003/04/21 · openalex publication_date 2003/06/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Asymptotic normalization coefficients (ANCs) for ⁸\stackrel\ensuremath→Li⁷Li+n have been extracted from the neutron transfer reaction ¹³C(⁷Li,⁸Li)¹²C at 63 MeV. These are related to the ANCs in ⁸\stackrel\ensuremath→B⁷Be+p using charge symmetry. We extract ANCs for ⁸B which are in very good agreement with those inferred from proton transfer and breakup experiments. We have also separated the contributions from the p_1/2 and p_3/2 components in the transfer. We find the astrophysical factor for the ⁷Be(p,\ensuremathγ)⁸B reaction to be S₁₇(0)=17.6\ifmmode±\else\textpm\fi1.7eVb. This is the first time that the rate of a direct capture reaction of astrophysical interest has been determined through a measurement of the ANCs in the mirror system.

Citations

• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• Dipole and quadrupole moments of mirror nuclei 8B and 8Li
• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Low-Energy Measurement of theB<mml:mprescripts/>7e(p,γ)B<mml:mprescripts/>8Cross Section