| 1. |
- Fischer, S M, et al.
(författare)
-
Alignment additivity in the two-quasiparticle superdeformed bands of Tl-192
- 1996
-
Ingår i: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 53:5, s. 2126-2133
-
Tidskriftsartikel (refereegranskat)abstract
- Four superdeformed bands have been confirmed in Tl-192. Two of these bands have T-(2) dynamic moments of inertia which are nearly constant with rotational frequency HBAR omega. The other two bands show the characteristic rise of T-(2) with increasing HBAR omega seen in most superdeformed bands of the A = 190 region of superdeformation. From comparisons with the odd-A neighbors, it was found that the alignments of these bands relative to a Hg-192 core can be accounted for from the additive contributions of the assigned quasiproton and quasineutron orbitals.
|
|
| 2. |
- BERNSTEIN, LA, et al.
(författare)
-
ONSET OF COLLECTIVITY IN NEUTRON-DEFICIENT PO-196,PO-198
- 1995
-
Ingår i: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 52:2, s. 621-627
-
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.
|
|
| 3. |
|
|
| 4. |
- FALLON, P, et al.
(författare)
-
PROTON AND NEUTRON EXCITATIONS IN SUPERDEFORMED TB-150
- 1995
-
Ingår i: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 52:1, s. 93-98
-
Tidskriftsartikel (refereegranskat)abstract
- Two new superdeformed (SD) bands have been observed in Tb-150 using the reaction P-31 + Sn-124 and the GAMMASPHERE detector array. These new bands are interpreted as being excited SD configurations involving a proton and a neutron particle-hole excitation, respectively. The configurations are discussed in terms of the occupancy of high-N intruder orbitals. These data are used to provide information on (i) the contribution to the dynamic moments of inertia due to the occupation of specific orbitals, (ii) the deformation driving effects of the particle-hole states, and (iii) the consequences of these effects on pairing and band crossings.
|
|
| 5. |
|
|
| 6. |
- NISIUS, D, et al.
(författare)
-
IDENTICAL SUPERDEFORMED BAND IN DY-151 - FURTHER EVIDENCE FOR THE PSEUDOSPIN COUPLING SCHEME
- 1995
-
Ingår i: Physics Letters B. - 0370-2693 .- 1873-2445. ; 346:1-2, s. 15-20
-
Tidskriftsartikel (refereegranskat)abstract
- One of the four new excited superdeformed bands found in Dy-151 is characterized by transition energies that lie midway between the gamma-ray energies of the yrast superdeformed band in Dy-152. This result adds significant new information on the issue of ''identical'' bands, as it confirms predictions based on the strong coupling model and the pseudospin coupling scheme.
|
|
