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Title: Decays of odd-odd [ital N][minus][ital Z]=2 nuclei above [sup 100]Sn: The observation of proton radioactivity from [sup 112]Cs

Abstract

The discovery of the new proton emitter [sup 112]Cs with an energy of 807[plus minus]7 keV and a half-life of 500[plus minus]100 [mu]s is reported. WKB half-life calculations indicate [ital d][sub 5/2] proton emission with a low spectroscopic factor comparable to values for [sup 109]I and [sup 113]Cs. This behavior is consistent with the onset of deformation in this region. The odd-odd nuclides [sup 112]Cs and [sup 108]I have significantly lower [ital Q][sub [ital p]] values than the corresponding isotopes lying closer to stability, which is attributed to strong pairing forces between the odd nucleons. The half-life of [sup 113]Cs has been measured with improved precision as 17[plus minus]2 [mu]s.

Authors:
; ; ; ; ; ; ; ;  [1]
  1. (Department of Physics, University of Edinburgh, Edinburgh EH9 3JZ (United Kingdom) SERC Daresbury Laboratory, Warrington WA4 4AD (United Kingdom) Oliver Lodge Laboratory, University of Liverpool, Liverpool L63 3BX (United Kingdom))
Publication Date:
OSTI Identifier:
5009697
Alternate Identifier(s):
OSTI ID: 5009697
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; (United States); Journal Volume: 72:12
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CESIUM; HALF-LIFE; RADIOACTIVITY; PROTONS; EMISSION; CESIUM 113; IODINE 108; ODD-ODD NUCLEI; STABILITY; WKB APPROXIMATION; ALKALI METAL ISOTOPES; ALKALI METALS; ALPHA DECAY RADIOISOTOPES; BARYONS; CESIUM ISOTOPES; DAYS LIVING RADIOISOTOPES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; INTERMEDIATE MASS NUCLEI; IODINE ISOTOPES; ISOTOPES; METALS; MICROSEC LIVING RADIOISOTOPES; NANOSEC LIVING RADIOISOTOPES; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; PROTON DECAY RADIOISOTOPES; RADIOISOTOPES; YEARS LIVING RADIOISOTOPES 663200* -- Radioactivity & Electromagnetic Transitions-- (1992-); 663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-); 663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)

Citation Formats

Page, R.D., Woods, P.J., Cunningham, R.A., Davinson, T., Davis, N.J., James, A.N., Livingston, K., Sellin, P.J., and Shotter, A.C. Decays of odd-odd [ital N][minus][ital Z]=2 nuclei above [sup 100]Sn: The observation of proton radioactivity from [sup 112]Cs. United States: N. p., 1994. Web. doi:10.1103/PhysRevLett.72.1798.
Page, R.D., Woods, P.J., Cunningham, R.A., Davinson, T., Davis, N.J., James, A.N., Livingston, K., Sellin, P.J., & Shotter, A.C. Decays of odd-odd [ital N][minus][ital Z]=2 nuclei above [sup 100]Sn: The observation of proton radioactivity from [sup 112]Cs. United States. doi:10.1103/PhysRevLett.72.1798.
Page, R.D., Woods, P.J., Cunningham, R.A., Davinson, T., Davis, N.J., James, A.N., Livingston, K., Sellin, P.J., and Shotter, A.C. Mon . "Decays of odd-odd [ital N][minus][ital Z]=2 nuclei above [sup 100]Sn: The observation of proton radioactivity from [sup 112]Cs". United States. doi:10.1103/PhysRevLett.72.1798.
@article{osti_5009697,
title = {Decays of odd-odd [ital N][minus][ital Z]=2 nuclei above [sup 100]Sn: The observation of proton radioactivity from [sup 112]Cs},
author = {Page, R.D. and Woods, P.J. and Cunningham, R.A. and Davinson, T. and Davis, N.J. and James, A.N. and Livingston, K. and Sellin, P.J. and Shotter, A.C.},
abstractNote = {The discovery of the new proton emitter [sup 112]Cs with an energy of 807[plus minus]7 keV and a half-life of 500[plus minus]100 [mu]s is reported. WKB half-life calculations indicate [ital d][sub 5/2] proton emission with a low spectroscopic factor comparable to values for [sup 109]I and [sup 113]Cs. This behavior is consistent with the onset of deformation in this region. The odd-odd nuclides [sup 112]Cs and [sup 108]I have significantly lower [ital Q][sub [ital p]] values than the corresponding isotopes lying closer to stability, which is attributed to strong pairing forces between the odd nucleons. The half-life of [sup 113]Cs has been measured with improved precision as 17[plus minus]2 [mu]s.},
doi = {10.1103/PhysRevLett.72.1798},
journal = {Physical Review Letters; (United States)},
number = ,
volume = 72:12,
place = {United States},
year = {Mon Mar 21 00:00:00 EST 1994},
month = {Mon Mar 21 00:00:00 EST 1994}
}