${}^3\mathrm{He}(\alpha ,\gamma ){}^7\mathrm{Be}$ and ${}^3\mathrm{H}(\alpha ,\gamma ){}^7\mathrm{Li}$ astrophysical S factors from the no-core shell model with continuum

Journal Article · Wed Jun 01 00:00:00 EDT 2016 · Physics Letters B

DOI:https://doi.org/10.1016/j.physletb.2016.04.021· OSTI ID:1247077

Dohet-Eraly, Jérémy; Navrátil, Petr; Quaglioni, Sofia; Horiuchi, Wataru; Hupin, Guillaume; Raimondi, Francesco

The ³He(α,γ)⁷Be and ³H(α,γ)⁷Li astrophysical S factors are calculated within the no-core shell model with continuum using a renormalized chiral nucleon–nucleon interaction. The ³He(α,γ)⁷Be astrophysical S factors agree reasonably well with the experimental data while the ³H(α,γ)⁷Li ones are overestimated. The seven-nucleon bound and resonance states and the α + ³He/³H elastic scattering are also studied and compared with experiment. Here, the low-lying resonance properties are rather well reproduced by our approach. At low energies, the s-wave phase shift, which is non-resonant, is overestimated.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• Grant/Contract Number: AC52-07NA27344; SCW1158
• OSTI ID: 1247077
• Alternate ID(s): OSTI ID: 1343010
• Report Number(s): LLNL-JRNL-678557; S0370269316300946; PII: S0370269316300946
• Journal Information: Physics Letters B, Journal Name: Physics Letters B Vol. 757 Journal Issue: C; ISSN 0370-2693
• Publisher: Elsevier
• Country of Publication: Netherlands
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
nuclear physics
light-nuclei radiative captures
Ab initio calculation