Breakup of 8B and the S17 astrophysical factor revisited

Abstract

Existing experimental data for the breakup of 8B at energies from 30 to 1000 MeV/nucleon on light through heavy targets are analyzed in detail in terms of an extended Glauber model. The predictions of the model are in excellent agreement with independent reaction data (reaction cross sections and parallel momentum distributions for core like fragments). Final state interactions have been included in the Coulomb dissociation component. We extract asymptotic normalization coefficients (ANC) from which the strophysical factor S17(0) for the key reaction for solar neutrino production, 7Be(p,gamma)8B, can be evaluated. Glauber model calculations using different effective interactions give consistent, though slightly different results. The differences give a measure of the precision one can expect from the method. The unweighted average of all ANCs extracted leads to S17(0)=18.7+/-1.9 eVb. The results of this new analysis are compared with the earlier one. They are consistent with the values from most direct measurements and other indirect methods.

arXiv comment6 pages, 4 figures submitted to Phys. Rev. C

References in corpus (15)

• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Solar 8B and hep Neutrino Measurements from 1258 Days of Super-Kamiokande Data
• Solar Models: current epoch and time dependences, neutrinos, and helioseismological properties
• Matter radii of light halo nuclei
• Breakup reactions of the halo nuclei Be11 and B8
• Optical model potentials involving loosely bound p-shell nuclei around 10 MeV/A
• 7Be(p,gamma)8B astrophysical S-factor from precision cross section measurements
• Coulomb dissociation of 8B and the low-energy cross section of the 7Be(p,gamma)8B solar fusion reaction
• Low energy measurement of the 7Be(p,gamma)8B cross section
• Electromagnetic Dissociation of 8B and the Rate of the 7Be(p,gamma)8B Reaction in the Sun
• Asymptotic normalization coefficients for 8B->7Be+p from a study of 8Li->7Li+n
• Asymptotic normalization coefficient of ^{8}B from breakup reactions and the S_{17} astrophysical factor
• A New Measurement of the Proton Capture Rate on 7Be and the S17(0) Factor
• Electromagnetic dissociation of 8B and the astrophysical S factor for 7Be(p,gamma)8B
• Determination of the S_18 astrophysical factor for 8B(p,gamma)9C from the breakup of 9C at intermediate energies

Cited by in corpus (10)

• Solar fusion cross sections II: the pp chain and CNO cycles
• Low-energy cross section of the 7Be(p,g)8B solar fusion reaction from Coulomb dissociation of 8B
• Core Transitions in the Breakup of Exotic Nuclei
• Peripherality of breakup reactions
• Influence of the projectile description on breakup calculations
• Structure of 23Al from one-proton breakup reaction and astrophysical implications
• Determination of S17(0) from published data
• Determination of 8B(p,gamma)9C reaction rate from 9C breakup
• Coulomb distortion and medium corrections in nucleon-removal reactions
• Breakup of loosely bound nuclei as indirect method in nuclear astrophysics: 8B, 9C, 23Al