22 Result(s)

Article

On the character of three 8⁺ states in ¹⁹²Pb

Three low-lying 8⁺ states have been identified in ¹⁹²Pb . A newly observed cascade of \( \gamma\) -rays built directly ...

A. N. Wilson, M. C. East, G. D. Dracoulis, A. P. Byrne… in The European Physical Journal A (2010)

Article

Identification of \(\mathrm{\ensuremath J^{\pi} = 19/2^+}\) and \(\mathrm{\ensuremath 23/2^+}\) isomeric states in ¹²⁷Sb

The nucleus \(\ensuremath {\rm ^{127}Sb}\) , which is on the neutron-rich periphery of the

H. Watanabe, G. J. Lane, G. D. Dracoulis, A. P. Byrne… in The European Physical Journal A (2009)

Article

Observation of a superdeformed band in ¹⁹⁰Pb

A superdeformed band has been observed in the N = 108 isotope ¹⁹⁰Pb. This is the most neutron-deficient Pb isotope in which superdeformed states have been observed. Several theoretical approaches have predicted t...

A. N. Wilson, G. D. Dracoulis, A. P. Byrne… in The European Physical Journal A - Hadrons … (2005)

Article

K-Mixing and fast decay of a seven-quasiparticle isomer in ¹⁷⁹Ta

A seven-quasiparticle isomer with \(K^{\pi} = (49 /2^ + )\) and T _1/2 = 53 ( ^{+ 3} _-7) ns...

F. G. Kondev, G. D. Dracoulis, G. J. Lane… in The European Physical Journal A - Hadrons … (2004)

Article

Electromagnetic properties of pseudo-Nilsson bands in ¹⁸⁵Os

New data have been obtained for ¹⁸⁵Os following the ¹⁷⁶Yb(¹³C,4n)¹⁸⁵Os reaction, extendingthe pseudo-Nilsson $\frac{1}{2}^{-},\frac{3}...

C. Wheldon, A. E. Stuchbery, A. N. Wilson… in The European Physical Journal A - Hadrons … (2004)

Chapter and Conference Paper

Triaxiality and tilted-bands in heavy osmium nuclei

Nuclei in the A ≈ 180 region around Z = 72 exhibit well deformed prolate shapes, giving rise to isomeric states as a result of the partial conservation of K, the projection of the total angular momentum on the nu...

C. Wheldon, G. D. Dracoulis, R. T. Newman, P. M. Walker… in Exotic Nuclei and Atomic Masses (2003)

Article

Exotic Isomers in Deformed Atomic Nuclei

Excited states of atomic nuclei can have long half lives, due to the angular-momentum couplings of unpaired nucleons. Such isomeric states provide opportunities for exploring novel nuclear physics, astrophysics a...

P. M. Walker, G. D. Dracoulis in Hyperfine Interactions (2001)

Article

Microsecond isomers in ¹⁸⁷Tl and ¹⁸⁸Pb

Lifetime measurements of states in nuclei with A=187 and 188 have been performed, using reactions between ¹⁵⁵Gd and ³⁶Ar and following the transport of evaporation residues to the focal plane of a gas-filled rec...

A.P. Byrne, A.M. Baxter, G.D. Dracoulis… in The European Physical Journal A - Hadrons … (2000)

Article

Fragment yields from the fission of ²³⁸U by fast neutrons

Independent yields of post-neutron emission, secondary fragments from the fission of ²³⁸U induced by fast neutrons have been measured using γ-γ coincidence data. The yields of these products are found to be cent...

W.R. Phillips, A.P. Byrne, G.D. Dracoulis… in The European Physical Journal A - Hadrons … (1998)

Article

New features in the systematics of low-spin states in^170–178W

Excited states in the range of even tungsten isotopes, from¹⁷⁰W to¹⁷⁸W, populated in the β-decay of^170–178Re parents have been identified using γ-ray singles and coincidence techniques, utilising the high efficie...

T. Kibédi, G. D. Dracoulis, A. P. Byrne… in Acta Physica Hungarica New Series Heavy Io… (1998)

Article

Limit to high-spin isomeric fission

The possibility that high-spin isomers in heavy nuclei might undergo fission has been investigated experimentally. The partial fission lifetime of the 34 μs, I = 34 isomer in ²¹²Fr is found to be at least one hou...

P. M. Walker, D. J. Hinde, A. P. Byrne… in Zeitschrift für Physik A Hadrons and Nuclei (1997)

Article

LEMS: application of the method to study the static quadrupole moment of the isomer in ¹⁷⁹W

The method of the level mixing spectroscopy (LEMS) was applied for the first time for the study of the static quadrupole moments of high-K isomers in the A ≈ 180 mass region. Results from a preliminary experiment...

G. Neyens, D.L. Balabanski, K. Vyvey… in Zeitschrift für Physik A Hadrons and nuclei (1997)

Article

Transient field measurements of first-excited stateg-factors in^188,190,192Os

Transient-field precessions were measured simultaneously for the 2₁ ⁺ states of^188,190,192Os as ions of these nuclei traversed a thin polarized iron foil. In contrast with most earlier measurements, the relative ...

A. E. Stuchbery, S. S. Anderssen… in Zeitschrift für Physik A Hadrons and Nuclei (1992)

Article

Gyromagnetic ratios of low-lying rotational states in^{156, 158, 160}Gd

Transient-field precessions were measured simultaneously for levels in the ground-state bands of^{156, 158, 160}Gd as ions of these nuclei traversed a thin polarized Fe foil. Relative g-factors of levels up to 6 ...

A. E. Stuchbery, A. G. White… in Zeitschrift für Physik A Hadrons and Nuclei (1991)

Article

High spin states in¹²⁹Ba

The high spin structure of the nucleus¹²⁹Ba has been investigated using a¹⁸O induced reaction. The known bands could be followed up to a maximum spin (55/2) ħ. Some 56 states and 78 transitions could be placed in...

K. Schiffer, A. P. Byrne, A. M. Baxter… in Zeitschrift für Physik A Atomic Nuclei (1990)

Article

Transient-field strength measurements for⁵²Cr traversing Fe hosts at high velocity and polarization transfer mechanisms

Transient-field strengths were measured for⁵²Cr ions traversing polarized Fe hosts at velocities up to 12υ₀ (12υ₀ =c/137 = Bohr velocity). The results are compared with predictions of various transient-field para...

A. E. Stuchbery, C. E. Doran, A. P. Byrne, H. H. Bolotin… in Hyperfine Interactions (1987)

Chapter and Conference Paper

On the influence of i_/132 neutrons on backbending in the light tungsten isotopes

P. M. Walker, G. D. Dracoulis in Nuclear Interactions (1976)

Chapter and Conference Paper

Multi-quasiparticle states in ¹⁷⁵Hf

P. M. Walker, G. D. Dracoulis in Nuclear Interactions (1976)

Chapter and Conference Paper

Two and three quasiparticle isomers in ¹⁷⁰Hf, ¹⁷¹Hf, ¹⁷²Hf and ¹⁷³Hf

G. D. Dracoulis, P. M. Walker, K. F. Yee in Nuclear Interactions (1976)