| 1. |
- DOMBRADI, Z, et al.
(author)
-
HIGH-SPIN SPECTROSCOPY OF TE-109
- 1995
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In: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 51:5, s. 2394-2399
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Journal article (peer-reviewed)
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| 2. |
- KLAMRA, W, et al.
(author)
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HIGH-SPIN BAND STRUCTURES IN CD-104
- 1995
-
In: Zeitschrift für Physik A Hadrons and Nuclei. - 0939-7922 .- 1431-5831. ; 352:2, s. 117-118
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Journal article (peer-reviewed)abstract
- High spin states in Cd-104 have been investigated by means of heavy ion induced reactions using the Nordball detector array. The level scheme constructed from yy-coincidences is dominated by three band structures, The positive parity band shows no rotational like energy spacing, It is thus understood mostly in terms of quasiparticle excitations with vd(5/2), Vg(7/2) and pi g(9/2) configurations, The collective properties of the negative parity bands are more pronounced. These bands are most likely due to v(h(11/2),d(5/2)) and v(h(11/2)g(7/2)) structures.
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| 3. |
- Kownacki, J, et al.
(author)
-
High-spin studies of the neutron deficient nuclei In-103, In-105, In-107, and In-109
- 1997
-
In: Nuclear Physics A. - 0375-9474 .- 1873-1554. ; 627:2, s. 239-258
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Journal article (peer-reviewed)abstract
- High-spin states of the isotopes 103,105,107,109In have been investigated using in-beam γ-ray spectroscopic methods. Results from three different experiments are presented. Targets of 54Fe, 50Cr, and 92Mo were bombarded by a 270 and 261 MeV 58Ni beam and by a 95 MeV 19F beam, respectively. Reaction channel separation was achieved with a charged-particle detector array and in the first two experiments also with a 1π neutron detector system. As a result of these experiments the level schemes of 103,105,107,109In were significantly extended. Excited states of these odd-A indium isotopes are discussed within the framework of the nuclear shell model and the hole-core coupling scheme. The systematics of excited states of light odd-A indium isotopes is also discussed.
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| 4. |
- Kownacki, J, et al.
(author)
-
The isospin dependent p-n multiplets in the region of doubly magic Sn-100
- 1996
-
Conference paper (peer-reviewed)abstract
- Experimental data on p-n multiplets appearing in the nuclei near double-magic Sn-100 accesible in heavy-ion fusion-evaporation experiments have been analyzed. Proton-rich nuclei in this region have been investigated using the NORDBALL array. A Ni-58 beams at energies of 270 Mev on Fe-54 and 261 MeV on Cr-50 targets were used. Reaction channel separation was achieved with a 4 pi charged particle multi-detector set-up together with a 1 pi neutron detector wall placed in the forward direction. On the basis of gamma gamma-coincidence and angular correlation relations a level schemes of several light Sn, In, Sb, Te and I nuclei were observed for the first time in the present experiment. The observed structure of nuclei are discussed in the framework of the nuclear shell-model. The p-n multiplets in the A similar to 100 region corresponding to the nucleon pairs with mixed configurations has been considered as a playground for the tests of the T = 0 and T = 1 parts of the effective interaction.
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| 5. |
- Sohler, D, et al.
(author)
-
Spectroscopy of neutron deficient Te-108
- 1998
-
In: European Physical Journal A. - : Springer Science and Business Media LLC. - 1434-6001 .- 1434-601X. ; 3:3, s. 209-211
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Journal article (peer-reviewed)abstract
- The neutron deficient nucleus Te-108 was studied in the Fe-54(Ni-58,2p2n) reaction. A detector system consisting of 4 Euroball cluster detectors, a charged-particle detector ball and a 16 element neutron multiplicity filter was used to detect the emitted particles and gamma rays. A new, significantly extended level scheme was constructed on the basis of gamma gamma-coincidence relations. Spin values for the states were determined from angular distribution ratios. The experimental results are discussed in terms of the shell model.
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| 6. |
- CEDERKALL, J, et al.
(author)
-
1ST OBSERVATION OF EXCITED-STATES IN SB-108
- 1995
-
In: Nuclear Physics A. - 0375-9474 .- 1873-1554. ; 581:1, s. 189-204
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Journal article (peer-reviewed)abstract
- A spectroscopic study of Sb-108 has been carried out as a part of a larger experiment where in total twenty-nine different residual nuclei were identified. This study gives the first information on excited levels in this nucleus. A low-lying two-quasi-particle multiplet together with some of the higher lying levels are discussed within the framework of the nuclear shell model. A rotational, strongly coupled, band is identified as, most likely, being built on the deformed pig9/2(-1) nuh11/2 configuration in accordance with total routhian surface calculations. Tentative spins and parities are presented as well as B(M1)/B(E2) ratios for some of the transitions in the strongly coupled band.
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| 7. |
- Danko, I, et al.
(author)
-
Collective and broken pair states of Ga-65,Ga-67
- 1999
-
In: PHYSICAL REVIEW C-NUCLEAR PHYSICS. - : AMERICAN PHYSICAL SOC. - 0556-2813. ; 59:4, s. 1956-1974
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Journal article (other academic/artistic)abstract
- Excited states of Ga-65 and Ga-67 nuclei were populated through the C-12(Ni-58,alpha p) and C-12(Ni-58,3p) reactions, respectively, and investigated by in-beam gamma-ray spectroscopic methods. The NORDBALL array equipped with a charged particle ball and 1
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| 8. |
- KLAMRA, W, et al.
(author)
-
HIGH-SPIN BAND STRUCTURES IN CD-104
- 1995
-
In: ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI. - : SPRINGER VERLAG. - 0939-7922. ; 352:2, s. 117-118
-
Journal article (peer-reviewed)abstract
- High spin states in Cd-104 have been investigated by means of heavy ion induced reactions using the Nordball detector array. The level scheme constructed from yy-coincidences is dominated by three band structures, The positive parity band shows no rotatio
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| 9. |
- Kownacki, J, et al.
(author)
-
The isospin dependent p-n multiplets in the region of doubly magic Sn-100
- 1996
-
In: ACTA PHYSICA POLONICA B. - : POLISH ACAD SCIENCES INST PHYSICS. ; 27:1-2, s. 87-97
-
Journal article (other academic/artistic)abstract
- Experimental data on p-n multiplets appearing in the nuclei near double-magic Sn-100 accesible in heavy-ion fusion-evaporation experiments have been analyzed. Proton-rich nuclei in this region have been investigated using the NORDBALL array. A Ni-58 beams
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| 10. |
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| 11. |
- Lipoglavsek, M, et al.
(author)
-
Stability of Sn-100(50)50 deduced from excited states in Cd-99(48)51 stability of
- 1996
-
In: PHYSICAL REVIEW LETTERS. - : AMER INST PHYSICS. - 0031-9007. ; 76:6, s. 888-891
-
Journal article (other academic/artistic)abstract
- Excited states of neutron deficient nuclei close to Sn-100 were investigated in an in-beam spectroscopic experiment using the NORDBALL detector array. Excited states in Cd-99 were identified for the first time. The measured half-life of an isomeric state
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| 12. |
- Palacz, M, et al.
(author)
-
In-beam gamma-ray spectroscopy of Cd-101
- 1996
-
In: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 608:2, s. 227-242
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Journal article (other academic/artistic)abstract
- Excited states of Cd-101 were studied in the reaction Ni-58(Cr-50,2p alpha n)Cd-101. The NORDBALL array with a Neutron Wall and a Silicon Ball was employed for the detection of gamma-rays and evaporated particles, The level scheme of Cd-101 was significan
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| 13. |
- Palacz, M, et al.
(author)
-
In-beam gamma-ray spectroscopy of Cd-103
- 1997
-
In: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 624:2, s. 210-224
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Journal article (other academic/artistic)abstract
- Excited states of Cd-103 were studied in the reaction Ni-58(Cr-50,4pn)Cd-103. The NORDBALL array with neutron and charged particle detectors was employed for the detection of gamma rays and light evaporated particles. The level scheme of Cd-103 was signif
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| 14. |
- Palacz, M, et al.
(author)
-
In beam gamma-ray spectroscopy of very neutron deficient odd-cadmium isotopes
- 1997
-
In: Acta Physica Polonica B. - : ACTA PHYSICA POLONICA B, JAGELLONIAN UNIV, INST PHYSICS. - 0587-4254 .- 1509-5770. ; 28:1-2, s. 309-313
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Journal article (peer-reviewed)abstract
- Excited states in the very neutron deficient odd cadmium isotopes Cd-99, Cd-101 and Cd-103 are discussed in terms of the nuclear shell model. Systematics of excited states in Cd99-109 is presented.
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| 15. |
- Persson, J, et al.
(author)
-
In-beam gamma-ray spectroscopy of Cd-102
- 1997
-
In: Nuclear Physics A. - : ELSEVIER SCIENCE BV. - 0375-9474 .- 1873-1554. ; 627:1, s. 101-118
-
Journal article (peer-reviewed)abstract
- Neutron deficient nuclei close to 100Sn have been studied using the NORDBALL Ge-detector array together with ancillary particle detectors. Evaporation residues from the compound nucleus 108Te were identified with charged particle and neutron detectors. In this paper a considerable extension of the level scheme of the nucleus 102Cd is presented. The strongest cascade of the new level scheme reveals an irregular sequence of dipole transitions above Iπ = 10+ extending up to spin 17. A strongly populated rather regular side band consisting of four quadrupole transitions ranging from spin 9 to spin 17 was also discovered. This band was tentatively assigned negative parity. Shell model calculations were performed and a very good agreement with the experimental results was found. The excited states could successfully be interpreted as neutron particle and proton hole excitations with respect to the doubly closed core 50100Sn50.
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| 16. |
- Persson, J, et al.
(author)
-
New spectroscopic data on Cd-102
- 1996
-
In: Acta Physica Polonica B. - : POLISH ACAD SCIENCES INST PHYSICS. - 0587-4254 .- 1509-5770. ; 27:1-2, s. 171-178
-
Journal article (peer-reviewed)abstract
- Gamma ray spectroscopy of neutron deficient nuclei close to the doubly magic nucleus Sn-100 has been performed using a heavy-ion reaction and the NORDBALL Ge-detector array. Evaporation residues were identified by means of charged particle and neutron detection. Transitions in 31 different evaporation residues were identified. New results on Cd-102 are presented.
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| 17. |
- Sohler, D, et al.
(author)
-
Spectroscopy of neutron deficient Ge-65
- 1997
-
In: Zeitschrift für Physik A Hadrons and Nuclei. - : Springer Science and Business Media LLC. - 0939-7922 .- 1431-5831. ; 357:3, s. 239-240
-
Journal article (peer-reviewed)abstract
- Excited states of 65Ge were populated via the 12C + 58Ni (261 MeV) reaction using the NORDBALL detector array equipped with charged-particle and neutron detector systems for reaction channel separation. On the basis of γγ-coincidence relations and angular distribution ratios a significantly extended level scheme was constructed up to E x = 9 MeV and J π = (33/2−). The low-energy states of the nucleus are discussed in the framework of the interacting boson-fermion model.
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| 18. |
- Sohler, D, et al.
(author)
-
Structure of As-68 studied via the C-12(Ni-58,pn) reaction
- 1998
-
In: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 644:3, s. 141-161
-
Journal article (other academic/artistic)abstract
- Excited states of As-68 nucleus were populated through the C-12(Ni-58,pn) reaction and investigated by in-beam gamma-spectroscopic methods. The NORDBALL detector array equipped with charged particle and neutron detectors was used to detect the evaporated
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| 19. |
- Sohler, D., et al.
(author)
-
Yrast states of the proton drip line nucleus 106 Sb
- 1999
-
In: Physical Review C - Nuclear Physics. - 2469-9985 .- 2469-9993 .- 0556-2813 .- 1089-490X. ; 59:3, s. 1324-1327
-
Journal article (peer-reviewed)abstract
- Yrast states of [Formula Presented] have been investigated in the [Formula Presented] reaction using in-beam [Formula Presented]-spectroscopic methods and in the [Formula Presented] reaction performing delayed [Formula Presented] and conversion electron studies. A new isomeric state was found at 103 keV with [Formula Presented] The number of states and transitions in the proposed level scheme have been doubled. The experimental results are discussed within the framework of the shell model. © 1999 The American Physical Society.
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| 20. |
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| 21. |
- SEWERYNIAK, D, et al.
(author)
-
IN-BEAM STUDY OF IN-102, IN-104 AND IN-106
- 1995
-
In: Nuclear Physics A. - 0375-9474 .- 1873-1554. ; 589:1, s. 175-200
-
Journal article (peer-reviewed)abstract
- Proton-rich odd-odd In isotopes have been investigated by in-beam spectroscopic methods using the NORDBALL detector array. A Ni-58 beam with an energy of 270 MeV was used to bombard a Fe-54 target. Separation of different reaction channels was achieved with a 4 pi charged-particle multi-detector set-up together with a 1 pi neutron detector wall placed in the forward direction. Excited states of the In-102 nucleus were identified for the first time as well as a set of negative-parity states in In-104. In In-106 the information about positive- and negative-parity states has been extended. The nuclei are discussed within the framework of the nuclear shell model, the interacting boson-fermion-fermion model and the systematics of the heavier odd-odd indium isotopes.
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| 22. |
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| 23. |
- Sohler, D, et al.
(author)
-
Yrast states of the proton drip line nucleus Sb-106
- 1999
-
In: PHYSICAL REVIEW C-NUCLEAR PHYSICS. - : AMERICAN PHYSICAL SOC. - 0556-2813. ; 59:3, s. 1324-1327
-
Journal article (other academic/artistic)abstract
- Yrast states of Sb-106 have been investigated in the Fe-54(Ni-58, alpha pn) reaction using in-beam gamma-spectroscopic methods and in the Cr-50(Ni-58,pn) reaction performing delayed gamma and conversion electron studies. A new isomeric state was found at
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| 24. |
- JERRESTAM, Dan, et al.
(author)
-
IN-BEAM SPECTROSCOPIC STUDIES OF THE NUCLEUS CD-105
- 1995
-
In: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 593:2, s. 162-176
-
Journal article (peer-reviewed)abstract
- High spin states in Cd-105 have been studied using reactions Cd-106(p, pn), Cd-106(He-3, 2p2n), Zr-92(O-16, 3n) and Ge-76(S-34, 5n). The excited levels are dominated by a negative parity band structure up to spin 47/2(-) and a positive parity structure up
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| 25. |
- FOGELBERG, Birger, et al.
(author)
-
THE DOUBLY CLOSED-SHELL NUCLEUS SN-132 - COLLECTIVITY AND P-H STATES
- 1995
-
In: PHYSICA SCRIPTA. - : ROYAL SWEDISH ACAD SCIENCES. - 0281-1847. ; T56, s. 79-83
-
Journal article (peer-reviewed)abstract
- The angular momenta and parities of the low lying states of Sn-132 have been firmly determined through studies of the beta-decay of In-132. The lowest lying state with a negative parity is shown to have a collective octupole character. Several particle-ho
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| 26. |
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| 27. |
- Palacz, M, et al.
(author)
-
In-beam gamma-ray spectroscopy of Co-56
- 1997
-
In: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474 .- 1873-1554. ; 627:1, s. 162-174
-
Journal article (other academic/artistic)abstract
- Excited states of Co-56 were studied in the reaction Al-27(S-32,2p1n) Co-56. The NORDBALL array with a Neutron Wall and a Silicon Ball was employed. The excited states were interpreted in terms of particle-hole excitations with respect to the doubly magic
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