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Nuclear Structure and Decay Data for A=167 Isobars

Journal Article · · Nuclear Data Sheets
 [1];  [2]
  1. McMaster University, Ontario (Canada); FRIB/Michigan State University; FRIB/Michigan State University
  2. Michigan State University, East Lansing, MI (United States)

Experimental nuclear spectroscopic data are compiled and evaluated for 17 known nuclides of mass 167 (Sm, Eu, Gd, Tb, Dy, Ho, Er Tm, Yb, Lu, Hf, Ta, W, Re, Os, Ir, Pt), 23 years after the previous full evaluation by 2000Ba65. Detailed information is presented for each reaction and decay experiment. Combining all the available data, recommended values are provided for energies, spins and parities, and half-lives of levels, with energies, branching ratios and multipolarities of γ radiations, and characteristics of β and α radiations in radioactive decays. Here, the α decays of A=171 nuclei to A=167 daughters are included in this work, while for α decays of A=167 nuclei to A=163 daughters, consult Nuclear Data Sheets (2010Re03) or the ENSDF database for A=163. 167Er, 167Tm, 167Yb, 167Lu and 167Ta are among the most extensively studied nuclides via decay and high-spin gamma-ray spectroscopy measurements, followed by 167Ho, 167Hf, 167W, and 167Os. Information for excited states in 167Dy, 167Re, and 167Ir are limited; no excited states have yet been identified in 167Sm, 167Eu, 167Gd, 167Tb and 167Pt, with the ground-state half-life of 167Sm remaining unknown. This work supersedes the earlier evaluation of A=167 nuclei by 2000Ba65.

Research Organization:
Michigan State University, East Lansing, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0016948
OSTI ID:
2340064
Alternate ID(s):
OSTI ID: 2368983
Journal Information:
Nuclear Data Sheets, Journal Name: Nuclear Data Sheets Vol. 191; ISSN 0090-3752
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Algebraic Solutions of an Extended Pairing Model for Well Deformed Nuclei journal March 2004
Order-to-Chaos Transition in Rotational Nuclei journal January 2005
Nuclear spectroscopy in the chaotic domain: level densities journal August 2006
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Decay of170Ho Isomers to Levels in170Er journal May 1974
Multiple Coulomb Excitation of 167Er journal September 1983
Values of the Neutron Resonance Capture Integral for Some Rare Earth Isotopes journal June 1972
Decay of Hafnium-169 journal June 1970
Fast Continuous Radiochemical Isolation of the Short-Lived Isotopes of Hf, Ta and W Produced by Heavy Ion Induced Reactions journal May 1989
Microscopic Description of Odd- and Even-Mass Er Isotopes journal October 2002
Measuring the β-decay Properties of Neutron-rich Exotic Pm, Sm, Eu, and Gd Isotopes to Constrain the Nucleosynthesis Yields in the Rare-earth Region journal September 2022
Isomer Spectroscopy of Neutron-rich $^{165,167}$Tb journal January 2017
Identification of New Neutron-Rich Isotopes in the Rare-Earth Region Produced by 345 MeV/nucleon 238 U journal January 2018

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