| 1. |
- Atac, A, et al.
(författare)
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Single-step link of the superdeformed band in Eu-143
- 1996
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Ingår i: ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI. - : SPRINGER VERLAG. - 0939-7922. ; 355:4, s. 343-344
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- A discrete gamma-ray transition with an energy of 3360.6 keV deexciting the second lowest SD state in Eu-143 has been discovered. It carries 3.2 % of the full intensity of the band and feeds into a nearly spherical state which is above the I = 35/2((+)),
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| 2. |
- Axelsson, A, et al.
(författare)
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Single-step link from yrast SD band in Eu-143
- 1997
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Ingår i: PROGRESS IN PARTICLE AND NUCLEAR PHYSICS. - : PERGAMON PRESS LTD. - 0146-6410. ; 38, s. 51-52
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- A discrete gamma-ray transition from the yrast SD band to the region of near-yrast discrete normal-deformed states has been identified in Eu-143. It has an energy of 3360.6 keV and an intensity corresponding to 3.2% of the full intensity of the SD band an
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| 3. |
- BERNSTEIN, LA, et al.
(författare)
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ONSET OF COLLECTIVITY IN NEUTRON-DEFICIENT PO-196,PO-198
- 1995
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Ingår i: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 52:2, s. 621-627
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Tidskriftsartikel (refereegranskat)abstract
- We have studied via in-beam gamma-ray spectroscopy Po-196 and Po-198, which are the first neutron-deficient Po isotopes to exhibit a collective low-lying structure. The ratios of yrast state energies and the E2 branching ratios of transitions from non-yrast to yrast states are indicative of a low-lying vibrational structure. The onset of collective motion in these isotopes can be attributed to the opening of the neutron i(13/2) orbital at N approximate to 112 and the resulting large overlap between the two valence protons in the h(9/2) orbital and the valence neutrons in the i(13/2) orbital.
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| 4. |
- Bracco, A, et al.
(författare)
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The giant dipole resonance in the superdeformed Eu-143 nucleus
- 1997
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Ingår i: ACTA PHYSICA HUNGARICA NEW SERIES-HEAVY ION PHYSICS. - : AKADEMIAI KIADO. - 1219-7580. ; 6:1-4, s. 83-93
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The gamma-decay of the Giant Dipole Resonance (GDR) built on excited nuclear states has been measured for the nucleus Eu-143. The reaction Pd-110(Cl-37, 4n)Eu-143 at a beam energy of 165 MeV has been employed. This experiment aimed at searching the gamma-
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| 5. |
- Camera, F, et al.
(författare)
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GDR in superdeformed nuclei
- 1997
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Ingår i: ACTA PHYSICA POLONICA B. - : ACTA PHYSICA POLONICA B, JAGELLONIAN UNIV, INST PHYSICS. - 0587-4254. ; 28:1-2, s. 207-217
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- A search for the gamma decay of the Giant Dipole Resonance built on superdeformed nuclear configurations was made. The superdeformed states of the Eu-143 nucleus were populated using the reaction Pd-110(Cl-37, 4n)Eu-143 at a beam energy of 165 MeV. High e
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| 6. |
- Camera, F, et al.
(författare)
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The gamma-decay of the GDR built on superdeformed states in Eu-143
- 1998
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Ingår i: EUROPEAN PHYSICAL JOURNAL A. - : SPRINGER VERLAG. - 1434-6001. ; 2:1, s. 1-2
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- A search for the gamma decay of the Giant Dipole Resonance built on superdeformed (SD) nuclear configurations of (EU)-E-143 was made, using the reaction Pd-110(Cl-37,4n)Eu-143 at 165 MeV. Eight large BaF2 scintillators and the NORDBALL array were used to
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| 7. |
- JERRESTAM, Dan, et al.
(författare)
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HIGHLY DEFORMED BAND IN AG-105
- 1995
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Ingår i: PHYSICAL REVIEW C-NUCLEAR PHYSICS. - : AMER INST PHYSICS. - 0556-2813. ; 52:5, s. 2448-2454
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Tidskriftsartikel (refereegranskat)abstract
- The isotope Ag-105 has been studied using 169.5 MeV Cl-37 ions impinging on Ge-76. The Nordball Ge array detected the gamma rays and a 4 pi charged particle detector system detected emitted light charged particles. A very deformed band has been establishe
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| 8. |
- Leoni, S, et al.
(författare)
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Four independent decay properties in the super-deformed well of Eu-143
- 1997
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 409:1-4, s. 71-76
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The flow of gamma-transitions through the superdeformed minimum of Eu-143 is investigated by studying the intensities of four different types of gamma-rays of superdeformed origin, obtained with a variety of gating conditions. They can all be explained ra
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| 9. |
- Maj, A, et al.
(författare)
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Array of anti-compton spectrometers as a trigger in GDR studies
- 1996
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Ingår i: ACTA PHYSICA POLONICA B. - : POLISH ACAD SCIENCES INST PHYSICS. - 0587-4254. ; 27:1-2, s. 541-546
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Preliminary results of experiments combining an array of large BaF2 detectors for high energy gamma-rays with an array of 17 Anti-Compton spectrometers are presented. The correlation between excited state giant dipole resonances and discrete line structur
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| 10. |
- Rudolph, D, et al.
(författare)
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Multiparticle-hole states of high spin in N < 50, A ≈ 90 nuclei : 1. The transitional nucleus 4389Tc46
- 1995
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Ingår i: Nuclear Physics A. - : Elsevier BV. - 0375-9474 .- 1873-1554. ; 587:1, s. 181-201
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Tidskriftsartikel (refereegranskat)abstract
- High spin states in the nucleus 89Tc have been studied via the fusion evaporation reaction 58Ni(40Ca,2αp)89Tc at 180 MeV beam energy. The NORDBALL γ-ray spectrometer equipped with auxiliary detectors for light particle selection was used to measure γγ- and particle-γγ coin-cidences. Some 60 transitions were placed into a level scheme comprising 38 levels reaching up to 9.2 MeV excitation energy and a possible spin of . The level scheme is compared to those of neighbouring nuclei and interpreted in terms of the spherical shell model. The calculations were performed with different sets of parameters within a restricted , , and configuration space. States above 2.3 MeV excitation energy are well reproduced by shell model calculations based on an empirical residual interaction, whereas collective excitations are suggested to contribute to the wave functions of lower lying states.
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