Determination of the effective quadrupole moment in 181Ta with pionic X-rays

Beetz, R.; Boer, F.W.N. de; Fransson, K.; Konijn, J.; Panman, J.; Tauscher, L.; Tibell, G.

doi:10.1016/0375-9474(78)96138-9

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…[18]. The measured pionic X-ray Lorentzian line shapes gave F~xp(Ta)=328+57eV and F~xp(Bi)=1329 + 70 eV.…”

Section: Widthsmentioning

confidence: 96%

“…For a detailed description of the formalism and analysis of the experimental data of the effective quadrupole moment, the reader is referred to our already published analysis of ~8~Ta [18]. Since the 2~ nucleus is almost spherical, it has a very small spectroscopic quadrupole moment Q.…”

Section: Quadrupole Momentsmentioning

confidence: 99%

“…However, owing to the rather large ground-state spin I=9/2 of 2~ the hyperfine splitting of the 4f level could be determined. This was done in a similar way as is described in [18] and in the following we use the notations defined there. The correction for the magnetic hfs was applied using interaction constants A l of 5.719eV and 1.366eV for the 4f and 5g levels, respectively.…”

Section: Quadrupole Momentsmentioning

confidence: 99%

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High spin states and neutron multiplicities after pion capture in181Ta and209Bi

Beetz¹,

Boer²,

Panman³

et al. 1978

Z Physik A

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The absorption of stopped n in 181Ta and 2~ has been investigated by studying prompt and delayed 7-ray spectra. Absolute cross-sections for the yield of isotopes per captured n-in (n-, xn) reactions, as well as the relative probability of populating nuclear states of different spins have been measured for the hafnium and lead isotopes, respectively. A spin as high as 20 has been observed in the production of 2~ The ground-state rotational bands of the hafnium isotopes are excited to spin values up to 16. Neutron multiplicities as large as 15 have been observed for both targets. A neutron multiplicity of -8 is most probable for both tantalum and bismuth targets. The strong interaction monopole energy shift e o and width F o for the 4f level are found to be e0(~81Ta)=540+100 eV; ~o(2~ 1790_+150 eV; Fo(181Ta)=225 +57 eV; F0(2~ = 1166 _+ 70 eV. The quadrupole moments, determined from the hyperfine splitting of the 4f pionic atom level, are Q=3.30+0.06b and Q=-0.50+0.08b for 181Ta and 2~ respectively.

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“…[18]. The measured pionic X-ray Lorentzian line shapes gave F~xp(Ta)=328+57eV and F~xp(Bi)=1329 + 70 eV.…”

Section: Widthsmentioning

confidence: 96%

Section: Quadrupole Momentsmentioning

confidence: 99%

Section: Quadrupole Momentsmentioning

confidence: 99%

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