Level structure of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Zr</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>92</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>from the (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>d</mml:mi></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml

Borello‐Lewin, T.; Castro, Henrique Gonçalves de; Horodynski‐Matsushigue, L. B.; Dietzsch, O.

doi:10.1103/physrevc.20.2101

Cited by 12 publications

(13 citation statements)

References 25 publications

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“…Similarly, J = 4 is not possible because of the angular distributions of the transitions to the 2 + 1 and 2 + 3 states. We confirm the positive parity assigned in [32] since the multipole mixing ratios of the decays to the 4 + 1 and 2 + 3 states are nonzero. Both these transitions are strong, thus E3/M2 mixed transitions can be excluded.…”

Section: Level Discussionsupporting

confidence: 80%

“…Since we observed no other level at this energy, we identify the 3126-keV level from Ref. [32] with the J = 1 state at 3124.6 keV from our measurement and, therefore, assign J π = 1 (+) . 4 + 4 state at 3178.3 keV.…”

Section: Level Discussionmentioning

confidence: 76%

“…As the ground state of 91 Zr is J π = 5/2 + , this allows only J π = 2 + , 3 + for the state in 92 Zr. Since most energies in [32] were overestimated by about 2 keV, we identify the 2911-keV level with the state we observe at 2909.3 keV. From our measurements, we limit this state to have spin and parity J π = 3 + .…”

Section: Level Discussionmentioning

confidence: 91%

“…A 2 + , 3 + state had been identified previously at 2909.46(8) keV [19]. The parity assignment arises from a 91 Zr(d,p) 92 Zr experiment, in which an l = 0 transfer was determined for an excited state at 2911 keV [32]. As the ground state of 91 Zr is J π = 5/2 + , this allows only J π = 2 + , 3 + for the state in 92 Zr.…”

Section: Level Discussionmentioning

confidence: 91%

“…The angular distributions of the γ ray to the 0 + 2 state and of the ground-state decay give clear evidence for J = 1. Positive parity was tentatively assigned to a level at 3126 keV from a 91 Zr(d,p) 92 Zr experiment [32], and l = 2 transfer to this state was assigned. The angular distribution analysis of the emitted protons with the distorted-wave Born approximation in [32] lead to the tentative spin and parity assignment J π = (1 + − 4 + ), where the data were corrected for a contamination resulting from the 94 Zr(d,p) 95 Zr reaction.…”

Section: Level Discussionmentioning

confidence: 99%

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Investigation of low-spin states inZr92with the (n,n'γ
Fransen
¹
,
Werner
²
,
Bandyopadhyay
³

et al. 2005
Phys. Rev. C
62
8
57
1
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Excited low-spin states of 92 Zr have been studied with the (n,n γ ) reaction. Comprehensive data on the electromagnetic decay of states with excitation energies up to about 3.8 MeV in particular, lifetimes, γ -ray branching ratios, multipole mixing ratios, and absolute transition strengths have been obtained. The detailed spectroscopic information about the low-spin level scheme enables us to address the predominant proton-neutron symmetry for low-spin states of 92 Zr. These data are compared to those of corresponding states in the N = 52 isotone 94 Mo and to a shell model calculation using 88 Sr as an inert core. However, neither a purely collective picture nor the restricted shell model calculation yields a fully satisfactory description of the observed structures. [1][2][3][4]. In neighboring 96 Ru 52 , the 2 + 1,ms state was found [5,6], and candidates for two-phonon MS states were assigned from E2/M1 mixing ratios, branching ratios, and lifetime limits [6].In vibrational nuclei, signatures of MS states, accessible through γ -ray spectroscopy at rather low excitation energies, are strong M1 transitions to symmetric states with the same phonon number with matrix elements of about | J f sym M1 J i ms | ≈ 1µ N , and weakly collective E2 transitions to symmetric states, since the latter transitions stem from the annihilation of a MS phonon Q ms . In contrast, we expect collective E2 transitions with transition strengths of several Weisskopf units between states with the same proton-neutron symmetry, e.g., from the MS two-phonon states to the 2 + 1,ms state from the annihilation of a symmetric phonon Q s . 0556-2813/2005/71(5)/054304(15)/$23.00 054304-1

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Section: Level Discussionsupporting

confidence: 80%

Section: Level Discussionmentioning

confidence: 76%

Section: Level Discussionmentioning

confidence: 91%

Section: Level Discussionmentioning

confidence: 91%

Section: Level Discussionmentioning

confidence: 99%

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