Calculation of the A=6 bound states within the hyperspherical harmonic basis
ORAL
Abstract
We present some recent results of the application of the Hyperspherical Harmonic (HH) approach to A=6 nuclei. The use of a new computational approach permitted the extension of the HH method, successfully used by the Pisa in the few-body system context, to study larger systems. We will shortly review some of the technical improvements and then we will show the results for the spectra of the A=6 nuclei computed with modern SRG evolved two-body chiral interactions. Moreover, we will present also some preliminary study where the three-body intractions are added. Finally, we will show a first application of the HH approach technique that we are studying for solving scattering states for A>4. In this presentation, we will try to demonstrate that the HH appproach can reach the same level of accuracy obtained by the mostly used No-Core-Shell-Model method also beyond the few-body sector.
*This research is supported by the U.S. Department of Energy, Office of Nuclear Science, undercontracts DE-AC05-06OR23177. The calculations were made possible by grants of computing timefrom the National Energy Research Supercomputer Center (NERSC).
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Publication: A. Gnech, M. Viviani, L.E. Marcucci, Phys. Rev. C 102, 014001 (2020)
A. Gnech, arXiv:2012.08431 (PhD Thesis)
A. Gnech, L.E. Marcucci, R. Schiavilla, M. Viviani, arXiv:2106.07439 (submitted to PRC)
Presenters
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Alex Gnech
- Jefferson Lab/Jefferson Science Associat