Nuclear excitation in muonic 209Bi

doi:10.1016/0375-9474(72)90897-4

Nuclear Physics A

Volume 181, Issue 1, 14 February 1972, Pages 14-24

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Abstract

The hyperfine spectra of muonic L and K X-rays of ²⁰⁹Bi have been reanalyzed by taking into account the resonance processes and the observed isomer shifts in addition to the M1 and the E2 interaction. The M1 and E2 hyperfine structure constants of the 1s, 2p and 3d muonic states and the nuclear static moments of the excited states $152$ ⁺ and $92$ ⁺ are determined from the best fits to the experimental spectra. The hfs constants and the M1 moments are in good agreement with theoretical predictions from the core excitation model. The quadrupole moment of the ground state remains to be 20% higher than that determined by the atomic beam method. A plausible interpretation is that this discrepancy might be due to the deformation of the lead core.

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Cited by (24)

Nuclear Data Sheets for A = 209
2015, Nuclear Data Sheets
The experimental data are evaluated for known nuclides of mass number A = 209 (Au,Hg,Tl,Pb,Bi,Po,At,Rn, Fr,Ra,Ac,Th). Detailed evaluated level properties and related nuclear structure information are presented, with the best values recommended for level energies, half-lives, γ–ray energies and intensities, decay data (energies, intensities and placement of radiations), and other spectroscopic data. This work supersedes the earlier full evaluation of A = 209 by M.J. Martin (1991Ma16).
Nuclear data sheets for A = 209
1991, Nuclear Data Sheets
Magnetic hyperfine structure in muonic <sup>209</sup>Bi
1984, Nuclear Physics, Section A
We have determined the magnetic hyperfine structure (HFS) in four nuclear transitions of muonic ²⁰⁹Bi. The results yielded an improved value of the magnetic HFS constant of the ground state. $A_{1} (92^{−}) = 2.00 (7) keV$ . New experimental values were established for three excited states, namely $A_{1} (132^{+}) = 2.9 (2) keV, A_{1} (92^{+}) = 2.1 (2) keV and A_{1} (152^{+}) = 2.4 (2) keV$ . In addition, the isomer shifts (IS) of the above-mentioned transitions were determined making use of the HFS constants. We find the following IS's of excited states: $132^{+}, 3.77 (28) keV; 92^{+}, 6.56 (32) keV; 152^{+}, 6.29 (18) keV$ .
Nuclear data sheets for A = 209
1977, Nuclear Data Sheets
Nuclear excitation and isomer shifts in muonic atoms. (II). Model-independent parametrization and discussion
1974, Nuclear Physics, Section A
Excitation probabilities and isomer shifts for about 50 excited nuclear levels from muonic atoms of Sm, Gd, Eu, Tm, Yb, Ta, W, Re, Os, Ir, Pt, Hg, Tl, and Bi are discussed. The data for ¹⁵³Eu are used in comparison with isomer shifts from the Mössbauer technique to evaluate electron density differences in rare earth compounds. Mössbauer and muonic isomer shifts are sensitive to different moments of the change of the charge distribution. Therefore, from a comparison new information can be deduced. The results of the muonic isomer shifts are compared with calculations based on various nuclear models.
Nuclear excitation and isomer shifts in muonic atoms. (I). Experiment and evaluation
1974, Nuclear Physics, Section A
Energies and intensities of 53 nuclear γ-lines in muonic atoms of Sm, Gd, Eu, Tm, Yb, Ta, W, Re, Os, Ir, Pt, Hg, Tl, and Bi have been measured with Ge(Li) detectors. By comparison with γ-lines from radioactive sources the isomer shifts for transitions from nuclear rotational levels, quadrupole and octupole vibrational levels, and single-particle levels have been deduced. The effect limiting the accuracy of the extracted isomer shifts is the correction for the magnetic hyperfine splitting of the nuclear levels.

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^†: Work supported by the USAEC and the NSF.

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Nuclear excitation in muonic 209Bi

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Phys. Lett.

Nucl. Phys.

Phys. Lett.

Phys. Rev.

Phys. Rev.

Nuclear excitation in muonic ²⁰⁹Bi