Beryllium-9 in Cluster Effective Field Theory

Abstract

We study the 9 Be ground-state energy with non-local $\alpha -$n and $\alpha -\alpha$ potentials derived from Cluster Effective Field Theory. The short-distance dependence of the interaction is regulated with a momentum cutoff. The potential parameters are fitted to reproduce the scattering length and effective range. We implement such potential models in a Non-Symmetrized Hyperspherical Harmonics (NSHH) code in momentum space. In addition we calculate ground state energies of various alpha nuclei. Work is in progress on a calculation of the photodisintegration of 9Be with the Lorentz Integral Transform (LIT) method.

References in corpus (5)

• Effective field theory description of halo nuclei
• Narrow Resonances in Effective Field Theory
• Astrophysical reaction rate for ${}^9$Be formation within a three-body approach
• Non-symmetrized hyperspherical harmonic basis for $A$-bodies
• Low-energy photodisintegration of 9Be and alpha + alpha + n <-> 9Be + gamma reactions at astrophysical conditions