<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi></mml:math>-ray decay of the 9.042 and 9.806 MeV states in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Na</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>23</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>

Green, P. W.; Jones, G.D.; Kelly, D. T.; Kuehner, J. A.; Petty, D. T.

doi:10.1103/physrevc.12.887

Cited by 11 publications

(5 citation statements)

References 5 publications

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“…Also in view of the present upper limit, this 7 ray could be emitted in the decay of a state not resolved from the 9.81 MeV state in the proton spectra (s. Fig. 1 of [6]). To exclude such a possibility 7-7 coincidence measurements would be necessary.…”

Section: B) (Charged Particle 7) Coincidencesmentioning

confidence: 70%

“…Angu!ar correlation measurements limit the possible spins of the 9.805 MeV level in 23Na to be ll/2 to 17/2 [5,6] though 17/2 is excluded in [7]. Our statistically poor (p, 7) correlation studies allow a 17/2 assignment 9 We got further information from studying the probable analog state at 9.610 MeV in 23Mg.…”

Section: The 9610 Mev (9805 Mev) Levelmentioning

confidence: 77%

“…for this transition! We don't deny the presence of the 4.27 MeV 7 ray in the spectrum, gated on the proton decay to the 9.81 MeV state, which also seems to occur in the corresponding spectrum at 0 ~ in [6]. It may, though, be questioned whether the placement of the 4.27 MeV line in the 23Na level schema really is correct.…”

Section: B) (Charged Particle 7) Coincidencesmentioning

confidence: 85%

“…For the mean life of the 9.81 MeV level in 23Na we get from the 3.57 MeV transition 21 +9fs. Back et al [5] found 12_+8fs and Green et al [6] z m < 20 fs from Doppler shift attenuation measurements. For a pure E2 transition from the 9.81 MeV to the 13/2 + state our branching ratio and lifetime measurements give a transition strength of 8.1 W.U.…”

Section: Lifetime Measurementsmentioning

confidence: 96%

“…A 15/2 + or a 13/2 + would require an l=4 for this transition with 0.3%0 of the Wigner limit while for J~=ll/2 + the particle decay could proceed by an l=2 with at most only 0.5 9 10 .6 times the Wigner limit which is very improbable in view of the fact that d-configurations should be important components of that state. According to Green et al [6] a 13/2 + for the corresponding state in 23Na can be discarded from their angular correlation measurements 9 For the 8.945 MeV and 9.042 MeV levels in 23Mg and 23Na, respectively, we therefore get J~= 15/2 + .…”

Section: The 8945 Mev (9042 Mev) Levelmentioning

confidence: 99%

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Investigation of high spin states in23Na and23Mg and the12C+12C resonance atE c.m.=19.3 MeV

et al. 1977

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The resonance in the 12C + t2C system at E .... = 19.3 MeV has been studied in the neutron and proton decay channels. From (p, 7), (n, p) and (n, 7) coincidence measurements high spin states could be localized in A--23 nuclei, in 23Mg up to possibly 21/2 +. These states were resonantly populated. The present data favor J~= 17/2 + for the 9.61 MeV state in 23Mg and therefore also for the probable parent state at 9.81 MeV in 23Na. A J~=12 + assignment to the resonance is supported and evidence was found that the resonant excitation of the lowest 15/2 + and 17/2 + states in mass 23 nuclei is caused by a change of the intrinsic structure of the Yrast levels around J~= 15/2 + towards larger deformation.

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Section: B) (Charged Particle 7) Coincidencesmentioning

confidence: 70%