Exotic Decays at the Proton Drip Line

Moltz, D.M.; Lang, Thomas; Cerny, Joseph; Robertson, John; Reiff, Jay E.

doi:10.1007/978-1-4615-3684-0_36

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1992

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“…Ground state two-proton decay was first predicted by Gol'danskii [-2, 3], but is as yet unobserved. In principle, many candidates exist [4,5]. However, the exponential dependence of the half-life on the available decay energy creates a very narrow window between beta decay as the dominant decay mode and the nuclide being totally unbound.…”

Section: Introductionmentioning

confidence: 98%

Beta-delayed two-proton decay of39Ti

Moltz

Batchelder

Lang

et al. 1992

Z. Physik A - Hadrons and Nuclei

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The beta-delayed two-proton decay of the T~ = -5/2 nuclide 39Ti has been observed. The a9Sc isobaric analog state has been calculated to lie at 8.82 MeV using the measured two-proton sum energy of 4750+40 keV for its decay to the 37K ground state. Combining this excitation energy with a Coulomb displacement energy calculation has lowered the energy available for ground state two-proton emission of 39Ti from 760 to 530 keV.

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Section: Introductionmentioning

confidence: 98%