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

We use the Generator Coordinate Method to investigate the 5H and 5He systems in the hyperspherical formalism. The microscopic wave functions are described by a 3H+n+n cluster structure for 5H, and by a mixing of 3H+p+n and 3H+n+n configurations for 5He. The resonance properties are analyzed with the Analytic Coupling in the Continuum Constant (ACCC) method. For 5H, 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 5He which correspond to the isobaric analog states of low-lying levels in 5H. A J=1/2+;T=3/2 state is found near Ex=21.3 MeV in 5He, with a width of Γ∼1 MeV