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VOLUME 61 (1995) | ISSUE 1 | PAGE 9
Is there an excited state of the 3H nucleus?
It is suggested that the excited state of the Η nucleus which was recently observed in the reaction H(6He,a) [D. V. Aleksandrov et ai, JETP Lett. 59, 320 (1994)] has a spin and parity of l/2+ and the same configuration as the 6He ground state. Since the amplitude for an electromagnetic transition to the ground state of the triton is strongly suppressed, this excited state cannot be observed in radiative capture of neutrons by deuterons. A resonance due to the excited state may not be seen in elastic nd scattering because of a destructive interference of the phase shifts of the potential and resonant scattering. © 1995 American Institute of Physics.