High spin states in 163Tm

doi:10.1016/0375-9474(77)90522-X

Nuclear Physics A

Volume 289, Issue 1, 10 October 1977, Pages 77-93

https://doi.org/10.1016/0375-9474(77)90522-X Get rights and content

Abstract

High-spin rotational levels in ¹⁶³Tm are populated in the ¹⁶⁵Ho(³He, 5n) and ¹⁶⁵Ho(α, 6n) reactions. The de-excitation γ-ray cascades are studied with Ge(Li) detectors. The rotational bands, which are built on the $12$ ⁺ [411], $72$ ⁺ [404], $12$ ⁻ [541] and $72$ ⁻ [523] intrinsic states, are identified up to high spin values. The behaviour of the moment of inertia of each rotational band versus the rotational frequency is compared with that of the doubly even core.

References (28)

F.S. Stephens et al.
Nucl. Phys.
(1972)
D. Barneoud et al.
Nucl. Phys.
(1970)
C. Foin et al.
Nucl. Phys.
(1974)
C. Ekstrom et al.
Nucl. Phys.
(1971)
I. Adam et al.
Nucl. Phys.
(1975)
D. Barneoud et al.
Nucl. Phys.
(1974)
S.A. Hjorth et al.
Nucl. Phys.
(1972)
A. Johnson et al.
Phys. Lett.
(1971)
F.S. Stephens et al.
Nucl. Phys.
(1972)
P. Thieberger
Phys. Lett.
(1973)

O. Saethre et al.

Nucl. Phys.

(1973)

K.E.G. Lobner et al.

Nucl. Data

(1970)

I.L. Lamm

Nucl. Phys.

(1969)

I. Forsblom et al.

Nucl. Phys.

(1975)

Cited by (18)

Nuclear Data Sheets for A = 163
2010, Nuclear Data Sheets
The available data from the various reaction and decay studies leading to nuclides having mass number A=163 have been reviewed. These data are summarized and presented, together with adopted level schemes and properties, for nuclides from Eu (Z=63) through Os (Z=76). ¹⁶³Eu represents a new addition to these nuclides. Level structures are now known for ¹⁶³Ta and ¹⁶³W through high-spin studies and recoil-decay tagging techniques. Several radioactive decays in this mass chain are not known at all or poorly established. No β or γ-ray data are available for ¹⁶³Re–¹⁶³W–¹⁶³Ta–¹⁶³Hf ε decay chain. Those for ¹⁶³Hf–¹⁶³Lu–¹⁶³Yb ɛ decay chain and ¹⁶³Eu–¹⁶³Gd–¹⁶³Tb $β^{-}$ decay chain are very sketchy. This evaluation is an update and revision of the previous one (2000Si01).
Identification of 183Hg. Identical bands in 183,185Hg
1993, Physics Letters B
In-beam γ-ray transitions in ¹⁸³Hg have been identified from fragment-γ and γ-γ coincidence measurements using the Argonne Fragment Mass Analyzer (FMA). The γ-ray transitions in ¹⁸³Hg were placed into five bands. Two of these have been associated with the $[624] 92^{+}$ orbital and exhibit signature splitting, as expected for i $_{132}$ excitations built on a prolate shape moderate deformation. Two other bands which do not show signature splitting have been associated with the $[514] 72^{−}$ orbital and exhibit transition energies “identical” to the bands with the same configuration in ¹⁸⁵Hg.
Nuclear data sheets for A = 163
1989, Nuclear Data Sheets
Study of the 171Tm nuclear structure by a massive transfer reaction
1988, Nuclear Physics, Section A
Aligned bands and gyromagnetic ratios in 162,164Tm
1987, Nuclear Physics, Section A
High-spin states in ¹⁶²Tm and ¹⁶⁴Tm have been studied by ^152,154Sm(¹⁴N, 4n) reactions. Measurements of γ-rays, angular distributions and γγ-coincidences were performed using Ge detectors. In each isotope, two side bands are observed besides the yrast band, which are followed up to high-spin states. An interpretation of the experimental results is proposed in the framework of the cranked shell-model. Results on gyromagnetic ratios in the yrast band of a series of odd-N Tm nuclei are presented. Magnetic properties of the side bands are also discussed.
Systematic study of the yrast band in the doubly-odd 158,160,162,164,166Tm nuclei
1986, Nuclear Physics, Section A
High-spin rotational states of ^{158,160,162,164}Tm were investigated by in-beam γ-spectroscopy using the (¹⁴N, 4n) and (¹⁴N, 6n) reactions. The strongly-aligned band $π[h_{112}]ν[i_{132}]$ has been observed in all these nuclei. Our experimental results, together with the data obtained by another group on ¹⁶⁶Tm, are interpreted in the frame of a cranking-model analysis. The behaviour of the moment of inertia versus rotational frequency and the existence of a triaxial shape is discussed.

View all citing articles on Scopus

View full text

Article preview

Nuclear Physics A

Abstract

References (28)

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Phys. Lett.

Nucl. Phys.

Phys. Lett.

Nucl. Phys.

Nucl. Data

Nucl. Phys.

Nucl. Phys.

Cited by (18)

Nuclear Data Sheets for A = 163

Identification of <sup>183</sup>Hg. Identical bands in <sup>183,185</sup>Hg

Nuclear data sheets for A = 163

Study of the <sup>171</sup>Tm nuclear structure by a massive transfer reaction

Aligned bands and gyromagnetic ratios in <sup>162,164</sup>Tm

Systematic study of the yrast band in the doubly-odd <sup>158,160,162,164,166</sup>Tm nuclei