A study of the (3He, n) reaction on isotopes of krypton

Alford, W.P.; Anderson, Richard E.; Batay-Csorba, P.A.; Emigh, R.A.; Lind, David A.; Smith, Patricia K.; Zafiratos, C.D.

doi:10.1016/0375-9474(79)90538-4

Cited by 30 publications

(6 citation statements)

References 12 publications

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“…In a study 27) of the 86Kr( 3 He, n)88Sr reaction, a strong transition was observed leading to the 0 + state at 3.15 MeV in "Sr with about one-third of the strength expected for the transition to the pairing vibration if the proton subshell is closed at Z = 38. Later calculations 28) have confirmed the identification of this level as the proton pairing vibration at the Z = 38 subshell closure. It is interesting to notethat this level is not strongly excited in the 90Zr(6Li, 8B)"Sr reaction.…”

Section: Dwba Analysismentioning

confidence: 82%

Two-proton pickup in the zirconium region using the (6Li, 8B) reaction

1982

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and 90, 92, 94Zr(6Li , 8]3) 88, 90 .92 Sr two-proton pickup reactions at 90 MeV. The strongest transitions to levels in the Zr isotopes are the 0+-0+ transitions to the g .s. and first excited 0 + states. The salient feature of the five Zr spectra is the large increase in 02 transition strength relative to that of the g .s. which is observed in the two heaviest isotopes.. .. .. Zr. In 9 OZr, the 02 transition is weak whereas it is the dominant transition in "Zr with twice the g .s. strength. These large variations in relative cross section, which are reproduced by DWBA calculations, are attributed to changing g .s. proton configurations in Zr. In the Sr spectra, which are distinctly different from the Zrspectra, the strongest transitions to excited states are to 2' rather than. 0* states. The (6 Li, 8 B) reaction seems to be adequately described as a one-step cluster transfer of a T = l, S = 0 proton pair. The suitability of this reaction for measurements of two-proton pickup is discussed .

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Section: Dwba Analysismentioning

confidence: 82%

Two-proton pickup in the zirconium region using the (6Li, 8B) reaction

1982

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“…In particular, the nuclei 147m'148m'149myb and as~ are connected by Q~c-and Q~-values to 144Sm, 145Sm, 14SEu, 146Gd and 147Gd. The masses of these nuclei are well known: 144Sm [9,35] is stable, the masses of 145Sm [10], 145Eu [5] and 147Gd [6] were redetermined in our earlier investigations, and accurate mass values for 146Gd were recently derived independently by reaction studies [11][12][13].…”

Section: Introductionmentioning

confidence: 98%

Atomic masses of147m, 148m, 149m Tb,148Dy,150m, 152m Ho derived from decay properties

et al. 1985

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“…From theoretical considerations there should also be a 0 + state to complete the two-phonon triplet. A 0 + level at 1.0 MeV was observed in a 78 Kr( 3 He,n) 80 Sr reaction study [ 29 ] but this level has not been seen in our decay data set. Based on a phenomenological parametrization of the effective interaction between phonons [ 30 , 31 ] and using experimental values for the interaction parameters as deduced from members of the observed three-phonon multiplet, a range of 820 keV to 880 keV can be estimated for the excitation energy of the two-phonon 0 + state.…”

Section: Low-lying States In Even-even Neutron-deficient Sr and Krmentioning

confidence: 59%

“…The experimental results on the 0 + states have been taken from: 80 Sr, Ref. [ 29 ]; 82 Sr, Ref. [ 17 ]; 84 Sr, Refs.…”

Section: Figmentioning

confidence: 99%

Low-spin states from decay studies in the mass 80 region

Döring¹,

Aprahamian²,

Wiescher³

2000

J. Res. Natl. Inst. Stand. Technol.

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Neutron-deficient nuclei in the mass 80 region are known to exhibit strongly deformed ground states deduced mainly from yrast-state properties measured in-beam via heavy-ion fusion-evaporation reactions. Vibrational excitations and non-yrast states as well as their interplay with the observed rotational collectivity have been less studied to date within this mass region. Thus, several β-decay experiments have been performed to populate low-spin states in the neutron-deficient 80,84Y and 80,84Sr nuclei. An overview of excited 0+ states in Sr and Kr nuclei is given and conclusions about shape evolution at low-spins are presented. In general, the non-yrast states in even-even Sr nuclei show mainly vibration-like collectivity which evolves to rotational behavior with increasing spin and decreasing neutron number.

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A study of the (3He, n) reaction on isotopes of krypton

Cited by 30 publications

References 12 publications

Two-proton pickup in the zirconium region using the (6Li, 8B) reaction

Two-proton pickup in the zirconium region using the (6Li, 8B) reaction

Atomic masses of147m, 148m, 149m Tb,148Dy,150m, 152m Ho derived from decay properties

Low-spin states from decay studies in the mass 80 region

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