Microscopic cluster model of H-5 and He-5 (T=3/2)

摘要

We use the Generator Coordinate Method to investigate the H-5 and He-5 systems in the hyperspherical formalism. The microscopic wave functions are described by a H-3 + n + n cluster structure for H-5, and by a mixing of H-3 + p + n and H-3 + n + n configurations for He-5. The resonance properties are analyzed with the Analytic Coupling in the Continuum Constant (ACCC) method. For H-5, we find results consistent with the literature, but the ground-state width is lower than in previous works. The calculation suggests J = 1/2(+) and J = 3/2(+) states in He-5 which correspond to the isobaric analog states of low-lying levels in H-5. A J = 1/2(+): T = 3/2 state is found near E-x = 21.3 MeV in He-5, with a width of Gamma approximate to 1 MeV.