Publications (16)
Relative spins and excitation energies of superdeformed bands in 190Hg: Further evidence for octupole vibration
B. Crowell, M. P. Carpenter, R. V. F. Janssens +20
An experiment using the Eurogam Phase II gamma-ray spectrometer confirms the existence of an excited superdeformed (SD) band in 190Hg and its very unusual decay into the lowest SD…
Search for Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes
C. Fougères, F. de Oliveira Santos, J. José +58
Classical novae are thermonuclear explosions in stellar binary systems, and important sources of Al and Na. While gamma rays from the decay of the former radioisotope…
AGATA - Advanced Gamma Tracking Array
S. Akkoyun, A. Algora, B. Alikhani +351
The Advanced GAmma Tracking Array (AGATA) is a European project to develop and operate the next generation gamma-ray spectrometer. AGATA is based on the technique of gamma-ray ener…
High-spin structures of 136Cs
A. Astier, M. -G. Porquet, G. Duchene +12
Odd-odd 136Cs nuclei have been produced in the 18O + 208Pb and 12C + 238U fusion-fission reactions and their gamma rays studied with the Euroball array. The high-spin level scheme…
High-spin states with seniority v=4,4,6 in 119-126Sn
A. Astier, M. -G. Porquet, Ch. Theisen +13
The 119-126Sn nuclei have been produced as fission fragments in two reactions induced by heavy ions: 12C+238U at 90 MeV bombarding energy, 18O+208Pb at 85 MeV. Their level schemes…
Large Deformation Effects in the N = Z 44Ti Compound Nucleus
P. Papka, C. Beck, F. Haas +18
The N = Z 44Ti* nucleus has been populated in Fusion Evaporation process at very high excitation energies and angular momenta using two entrance channels with different mass-asymme…
High-resolution spectroscopy of neutron-rich Br isotopes and signatures for a prolate-to-oblate shape transition at N=56
J. Dudouet, G. Colombi, D. Reygadas Tello +39
The first systematic experimental study of the neutron-rich Br isotopes with two complementary state-of-the-art techniques is presented. These isotopes have been populated in the f…
Observation of the lowest energy gamma-ray in any superdeformed nucleus : 196Bi
A. Prevost, B. Rosse, M. Meyer +18
New results on the superdeformed Bi nucleus a re reported. We have observed with the EUROBALL IV -ray spectrometer array a superdeformed trans ition of 124 keV which is…
High-spin structures of 88Kr and 89Rb: Evolution from collective to single-particle behaviors
A. Astier, M. -G. Porquet, Ts. Venkova +9
The high-spin states of the two neutron-rich nuclei, 88Kr and 89R have been studied from the 18O + 208Pb fusion-fission reaction. Their level schemes were built from triple gamma-r…
First candidates for γ vibrational bands built on the [505]11/2- neutron orbital in odd-A Dy isotopes
S. N. T. Majola, M. A. Sithole, L. Mdletshe +67
Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the 155Gd(α,2n)157Dy and 148Nd(12C, 5n)155Dy reactions at 25 and 65 MeV,…
High-spin structure in K
P. -A. Söderström, F. Recchia, J. Nyberg +74
High-spin states of K have been populated in the fusion-evaporation reaction C(Si,np)K and studied by means of -ray spectroscopy techniques using on…
Discovery of a new isomeric state in Ni: Evidence for a highly-deformed proton intruder state
A. Dijon, E. Clément, G. De France +26
We report on the observation of a new isomeric state in Ni. We suggest that the newly observed state at 168(1) keV above the first 2 state is a 0 state…
Search for Fingerprints of Tetrahedral Symmetry in
Q. T. Doan, D. Curien, O. Stezowski +28
Theoretical predictions suggest the presence of tetrahedral symmetry as an explanation for the vanishing intra-band E2-transitions at the bottom of the odd-spin negative parity ban…
High-spin structures of five N=82 isotones: 136Xe, 137Cs, 138Ba, 139La, and 140Ce
A. Astier, M. -G. Porquet, Ts. Venkova +14
Five N=82 isotones have been produced in two fusion-fission reactions and their gamma-rays studied with the Euroball array. The high-spin states of 139La have been identified for t…
Observation of -vibrations and alignments built on non-ground-state configurations in 156Dy
S. N. T. Majola, D. J. Hartley, L. L. Riedinger +25
The exact nature of the lowest $K^Ï=2_γ^+$ rotational bands in all deformed nuclei remains obscure. Traditionally they are assumed to be collective vibrations of the nuclear shap…
High-spin structures of 124-131Te: Competition of proton and neutron pair breakings
A. Astier, M. -G. Porquet, Ts. Venkova +13
The 124-131Te nuclei have been produced as fission fragments in two fusion reactions induced by heavy-ions (12C + 238U at 90 MeV bombarding energy and 18O + 208Pb at 85 MeV) and st…