In-beamγ-ray spectroscopy of the neutron deficient100Ag

Alfier, R.; Alber, D.; Grawe, H.; Kluge, H.; Maier, K. H.; Schubart, R.; Fossan, D. B.; Piel, W. F.

doi:10.1007/bf02769676

Cited by 3 publications

(6 citation statements)

References 25 publications

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“…The I = 2 decoupled bands based on the low-νh 11/2 orbital are observed with the 11/2 − bandhead excitation energy increasing with decreasing neutron number, viz., the νh 11/2 bandheads lie at ∼2.25, 1.88, 1.07, and 0.53 MeV, in the odd-A 95−101 Ru isotopes [6,9,10], respectively. Similar trends have been observed in the odd-A 97−103 Pd isotopes and the odd-A 99−105 Cd isotopes [50].…”

Section: Discussionsupporting

confidence: 82%

“…The other likely candidates for bands B2 and B3 are the πg 9/2 ⊗ νg 7/2 and πg 9/2 ⊗ νd 5/2 configurations, and the TAC model calculations exhibit self-consistent minimum around the sets of deformation parameters ( 2 = 0.09, 4 [14,18,48,49] and 100−106 Ag [50][51][52] isotopes. Inset also shows the excitation energy plot.…”

Section: Discussionmentioning

confidence: 96%

“…The values compare reasonably with those observed for bands B5 and B6. Systematics of the γ -transition energies and the excitation energies of states in the coupled πg 9/2 ⊗ νh 11/2 bands observed in the doubly odd 96,100−104 Rh [14,18,48,49] and the 100−106 Ag [50][51][52] nuclei, along with those in the coupled bands B2, B3, B5, and B6 observed in 98 Rh, are shown in Fig. 10.…”

Section: Discussionmentioning

confidence: 99%

“…Spin assignments have been mainly deduced from the presumptions that (a) a high-spin state decays predominantly to the state with lower spin through J →J -L transition of multipolarity L, (b) weak crossover transition to two dipole transitions in a coupled band is generally taken as E2 in case the DCO ratio is not known, and (c) the yrast states are preferentially populated following the heavy-ion reactions. In the odd-odd 98,100 Tc [12,13], 96,100,102,104 Rh [14,18,[47][48][49], and 100,106,108 Ag [50][51][52][53] nuclei in the A ≈ 100 mass region, the low-lying states with excitation energy up to ∼0.5 MeV are mainly positive-parity states with I 8 , which are built on the πg 9/2 ⊗ νg 7/2 /νd 5/2 and πp 1/2 ⊗ νh 11/2 configurations. The low-lying negative-parity states are scarce in the odd-odd Tc, Rh, and Ag nuclei in the A ≈ 100 region.…”

Section: B Spin-parity Assignments To States In 98 Rhmentioning

confidence: 99%

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Band structures in doubly oddRh98

et al. 2014

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Excited states in the transitional doubly odd 98 Rh nucleus were populated in the 75 As( 28 Si,2p3n) fusionevaporation reaction using the 120-MeV incident 28 Si beam. The subsequent de-excitations were investigated through in-beam γ -ray spectroscopic techniques using an early implementation phase of the Indian National Gamma Array (INGA) spectrometer equipped with 18 clover Ge detectors. The level structures in 98 Rh have been established up to excitation energy ≈10 MeV and angular momentum ∼23 . The previously reported level schemes are considerably modified and extended substantially. Significant expansion of the level scheme at low excitation energies stipulates that the previously reported 842-726-994-980-265 keV γ -transition cascade in 98 Rh is not directly based on the ground state (T 1/2 = 8.7 min). Tilted-axis cranking (TAC) shell-model calculations have been used to put the present level scheme of 98 Rh in perspective. Level structures have been interpreted in terms of the rotational bands based on the πp 1/2 ⊗ νh 11/2 [triaxiality parameter (γ ) = 25 • ], and πf 5/2 ⊗ νh 11/2 proton-neutron configurations having moderate quadrupole deformation ( 2 ≈ 0.13) and the admixtures. Excited band structures are based on the πp 1/2 /f 5/2 ⊗ π (g 9/2 ) 2 ⊗ νh 11/2 configuration and the fully stretched [πp 1/2 ⊗ ν(h 11/2 ) 2 ⊗ νd 5/2 ] 13 − configuration.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: B Spin-parity Assignments To States In 98 Rhmentioning

confidence: 99%

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Band structures in doubly oddRh98

et al. 2014

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“…Analogous structures have been observed in the neighboring odd-odd silver isotopes 100−108 Ag [5,22,[30][31][32][33][34] and the systematics are plotted in Fig. 6.…”

Section: Electric-quadrupole Rotational Bands D and Esupporting

confidence: 67%

High-spin level structure of the doubly odd nucleus104Ag

et al. 2013

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The high-spin level structure of the doubly odd nucleus 104 Ag has been investigated via the 97 Mo( 11 B, 4n) 104 Ag reaction at a beam energy of 50 MeV. The newly established level scheme includes lower-lying two-quasiparticle states and several higher-lying bands. Two positive-parity bands associated with the πg −1 9/2 ⊗ νd 5/2 and πg −1 9/2 ⊗ νg 7/2 configurations are extended significantly. Based on the comparison with the analogous structures in neighboring nuclei and the features of nuclear chirality, the negative parity bands are suggested as candidate chiral doublet bands with the πg −1 9/2 ⊗ νh 11/2 configuration.

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