Portal de Periódicos da CAPES

On large-scale shell model calculations in 4 He

1990; IOP Publishing; Volume: 16; Issue: 3 Linguagem: Inglês

10.1088/0954-3899/16/3/005

1361-6471

R. F. Bishop, M. F. Flynn, M. C. Boscá, E. Buendı́a, R. Guardiola,

Quantum Chromodynamics and Particle Interactions

Most shell-model calculations of 4He require very large basis space for the energy spectrum to stabilise. Coupled cluster methods and an exact treatment of the centre-of-mass motion dramatically reduce the number of configurations. The authors thereby obtain almost exact results with small bases, but which include states of very high excitation energy.