Speaker
Christian Forssén
(Lawrence Livermore National Laboratory)
Description
I will discuss present attempts to employ many-body nuclear structure information in
nuclear reaction calculations. The foundation of our approach is the ab initio
no-core shell model (NCSM), which is a well-established theoretical framework aimed
at an exact description of nuclear structure starting from high-precision
interactions between the nucleons. We are now able to extract translationally
invariant cluster form factors from the NCSM many-body wave functions, and
subsequently use them in cross section calculations. I will show some of our first
results from studies of the radiative capture reactions 3He(a,g)7Be and
10Be(n,g)11Be. The former reaction corresponds to the most important uncertainty in
solar model predictions of neutrino fluxes, while the latter represents a possible
breakout from the standard primordial nucleosynthesis in inhomogeneous Big Bang
scenarios.
This work was partly performed under the auspices of the U.S. Department of Energy by
the University of California, Lawrence Livermore National Laboratory under contract
No. W-7405-Eng-48. Support from the LDRD contract No. 04-ER-058 is acknowledged.
Author
Christian Forssén
(Lawrence Livermore National Laboratory)
Co-authors
Dr
Etienne Caurier
(IRES CNRS Strasbourg)
Dr
Petr Navratil
(Lawrence Livermore National Laboratory)
Dr
W. Erich Ormand
(Lawrence Livermore National Laboratory)
