Results 221 to 230 of about 31,191 (262)

Shape change and shape coexistence in 134Pr

Zeitschrift für Physik A Hadrons and nuclei, 1992
The band structure of doubly odd nucleus 134Pr has been studied by means of the reaction 119Sn(19F,4n) at 87 MeV bombarding energy. Rotational bands built on πh11/2⊗vh11/2 and πh7/2⊗vh11/2 configurations has been observed. A band consisting of quadrupole transitions, probably involving the vi13/2[600]1/2+ orbital was also weakly populated.
C. M. Petrache   +5 more
openaire   +2 more sources

Shape coexistence in187Hg

Zeitschrift f�r Physik A Atomic Nuclei, 1986
Excited states of187Hg have been investigated via the164Dy (28Si,5n) reaction by means of in- beam gamma-ray spectroscopy using the multidetector 4π away “Ckāteau de. Cristal”. Different bands were populated up to spin I- 45/2. Coexistence of both prolate and oblate structures is observed for the first time in an odd- A Hg isotope.
Hannachi, F.   +12 more
openaire   +1 more source

Shape coexistence in188Pb

Science in China Series A: Mathematics, 2000
The shape coexistence in188Pb is investigated in terms of the projected shell model. Analyzing the experimental data with the calculated results, it is shown that the three shapes, sphere, oblate and prolate, coexist with each other in the low-lying excited states.
Xueshi Chen   +4 more
openaire   +1 more source

Shape coexistence in 117I

Zeitschrift für Physik A Hadrons and nuclei, 1992
The 117I nucleus has been investigated in a high-spin gamma-spectroscopic study using the NORDBALL detector array.
S. Juutinen   +10 more
openaire   +1 more source

Species Differences in Phenology Shape Coexistence

The American Naturalist, 2020
Ecological theory produces opposing predictions about whether differences in the timing of life-history transitions, or "phenology," promote or limit coexistence. Phenological separation is predicted to create temporal niche differences, increasing coexistence, yet phenological separation could also competitively favor one species, increasing fitness ...
Christopher, Blackford   +2 more
openaire   +2 more sources

Shape coexistence in atomic nuclei

Reviews of Modern Physics, 2011
Shape coexistence in nuclei appears to be unique in the realm of finite many-body quantum systems. It differs from the various geometrical arrangements that sometimes occur in a molecule in that in a molecule the various arrangements are of the widely separated atomic nuclei.
Kris Heyde, John L. Wood
openaire   +1 more source

Shape Coexistence in 74Se

Czechoslovak Journal of Physics, 2001
The 01,2+,21,2+ and 41,2+ states in 74Se have been described as linear combinations of pure states with definite deformation within a two-band mixing model. The mixing amplitudes between the spherical and deformed configurations and the mixing matrix elements have then been extracted from the calculations.
openaire   +1 more source

Phase transitions versus shape coexistence

Physical Review C, 2004
In the present paper, we discuss the differences that underlie a topic of current intensive research and debate, e.g., the appearance of phase transitions and shape coexistence in atomic nuclei. Besides a formulation of the basic differences, we discuss on one hand some typical examples of shape coexistence (near the Sn and Pb closed shell regions) and,
Heyde, Kris   +4 more
openaire   +1 more source

Evidence for shape coexistence in186Pt

Zeitschrift f�r Physik A Atomic Nuclei, 1987
High-spin states in186Pt have been populated by the188Os (α, 6n) reaction and were investigated with the OSIRIS spectrometer. A shape coexistence at high spins was established in the nucleus186Pt, which lies on the border between light prolate and heavy oblate Pt nuclei.
G. Hebbinghaus   +5 more
openaire   +1 more source

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