منابع مشابه
First - Forbidden Beta Decay near A = 40
Shell model calculations in the full sdpf model space are carried out for the known and possible lirst-forbidden beta decays for 34 < A i 44. The main purpose is to study the strong quenching of the unique (dJ = 2) decays, which results from the repulsive nature of the T= 1 particle-hole interaction, and the strong meson-exchange enhancement of the AJ = 0 decays. Procedures for calculating the ...
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Impact of the first-forbidden β decay on the production of A ∼ 195 r-process peak a r t i c l e i n f o a b s t r a c t First-forbidden transition Neutron emission QRPA We investigated the effects of first-forbidden transitions in β decays on the production of the r-process A ∼ 195 peak. The theoretical calculated β-decay rates with β-delayed neutron emission were examined using several astroph...
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Fermi gave the first account of this theory to several of his Roman friends while we were spending the Christmas vacation of 1933 in the Alps. It was in the evening after a full day of skiing; we were all sitting on one bed in a hotel room, and I could hardly keep still in that position, bruised as I was after several falls on icy snow. Fermi was fully aware of the importance of his accomplishm...
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The inner Bremsstrahlung (I.B.) spectrum accompanying the /S-decay of 1 4 1 Ce (non-unique first forbidden /^-transition) was measured using a single channel scintillation spectrometer. The measured I.B. was analyzed by the variable width peeling-ofT method. This analyzed and corrected I.B. was compared with those calculated according to the original theories of Knipp and Uhlenbeck as well as o...
متن کاملFirst-forbidden beta decay: Meson-exchange enhancement of the axial charge at A~16.
Calculations are presented for four relatively strong first-forbidden P decays in the region A = 11—16 in order to study the very large mesonic-exchange-current enhancement of the rank-zero components. The p capture on 0 is considered on the same footing. The wave functions utilized include up to 4~ excitations. Two-body exchange-current matrix elements are calculated as well as one-body impuls...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1971
ISSN: 0033-068X
DOI: 10.1143/ptp.45.1466