منابع مشابه
Landscape of two-proton radioactivity.
Ground-state two-proton (2p) radioactivity is a decay mode found in isotopes of elements with even atomic numbers located beyond the two-proton drip line. So far, this exotic process has been experimentally observed in a few light- and medium-mass nuclides with Z≤30. In this study, using state-of-the-art nuclear density functional theory, we globally analyze 2p radioactivity and for the first t...
متن کاملTwo-proton radioactivity of 45Fe.
In an experiment at the SISSI-LISE3 facility of GANIL, the decay of the proton drip line nucleus 45Fe has been studied. Fragment-implantation events have been correlated with radioactive decay events in a 16x16 pixel silicon-strip detector. The decay-energy spectrum of 45Fe implants shows a distinct peak at (1.14+/-0.04) MeV with a half-life of T(1/2)=(4.7(+3.4)(-1.4)) ms. None of the events in...
متن کاملTwo-Proton Radioactivity of ^{67}Kr.
In an experiment with the BigRIPS separator at the RIKEN Nishina Center, we observed two-proton (2p) emission from ^{67}Kr. At the same time, no evidence for 2p emission of ^{59}Ge and ^{63}Se, two other potential candidates for this exotic radioactivity, could be observed. This observation is in line with Q value predictions which pointed to ^{67}Kr as being the best new candidate among the th...
متن کاملTWO - PROTON RADIOACTIVITY : TRACKING 2 He EMISSION
Two proton radioactivity has been observed experimentally in the decay of Fe and Zn, and possibly of Ni. These first experiments only allowed for a limited comparison with theory: T1/2 and Q2P values. Experimental efforts have been achieved to measure dynamical observables in order to perform a more detailed study of the decay mechanism. Time projection chambers have been developped by groups o...
متن کاملProton-Proton Correlations Observed in the Two-Proton Radioactivity of the (21+) Isomer of 94Ag
The (21) isomer occurring in the lightest known isotope of silver, Ag, has properties that are unmatched in the entire nuclear chart. It is characterised by a long halflife of 0.39(4) s [1], a high spin [2] and, although its dominant disintegration modes are β-delayed γ-ray [2] or proton [1] emission, the excitation energy of 6.7(5) MeV [3] makes direct one-proton and two-proton (2p) radioactiv...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2013
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.110.222501