On a new relation between magnetic hyperfine structure constants for the and muonic orbits
Abstract
A new useful relation between magnetic h.f.s. constants for the and muonic orbits is derived by using the fact that a radial integral for the orbit is similar to that for the orbit inside nuclei, which is numerically confirmed.
References (6)
- M. Le Bellac
Nucl. Phys.
(1963) - J. Johnson et al.
Phys. Lett.
(1968)Phys. Rev.
(1970)R. Engfer et al.Z. Phys.
(1968) - A. Bohr et al.
Phys. Rev.
(1950)
Cited by (6)
Nuclear Data Sheets for A=190
2020, Nuclear Data SheetsThe evaluated experimental data are presented and evaluated for 15 known nuclides of mass 190 (Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, Tl, Pb, Bi, Po). This work supersedes earlier full evaluations of A=190 by 2003Si05, 1990Si09, 1982Le22 and 1973Sc42. For 190Hf, only the isotopic identification has been made, with no information about the half-life of the ground state or its decay properties. For 190Ta, only one excited state as an isomer has been identified, but with no knowledge about its decay properties. For 190W, 190Re, 190Bi and 190Po, available spectroscopic data are scarce. The decay schemes of 190Ta, 190W, 190Au, 190Hg, 190Au isomer decay, 190Tl (both the activities), 190Pb, and 190Bi (both the activities) are considered incomplete by the evaluators. At present, extensive level structures, both the low-spin and high-spin, are known for 190Os, 190Ir, 190Pt, 190Au, 190Hg, 190Tl and 190Pb, but data for level lifetimes, and γ-ray transition probabilities are generally lacking.
Nuclear Data Sheets for A = 151
2009, Nuclear Data SheetsNuclear spectroscopic information for known nuclides of mass number 151 (Cs,Ba,La,Ce,Pr,Nd,Pm,Sm,Eu, Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu) with Z = 55 to 71 and N = 96 to 80 have been evaluated and presented together with adopted energies and Jπ of levels in these nuclei. No excited state data are yet available for 151Cs, 151Ba and 151La; only the isotopic identification has been reported, without information about their half-lives or decay modes. The 151Hf nuclide has not yet been identified. The radioactive decays of 151Ce, 151Ho (35.2-s and 47.2-s activities), 151Er (23.5-s and 0.58-s activities), 151Yb (two activities of about the same half-life) are not well established. For the decay of 151Lu, only the half-life is known.
Superdeformed structures are well established in 151Dy and 151Tb with a total of five SD bands in 151Dy and ten SD bands in 151Tb. In 151Gd, six SD bands have been tentatively assigned. In 151Tb, yrast SD-1 band has now (2008Ro23) been linked to normal-deformed structures through two well-defined high-energy γ transitions and possibly four other tentative γ rays.
This evaluation represents a revision of earlier (1997Si03,1988Si15,1976Ha35) evaluations of A = 151.
Nuclear data sheets for A = 190
2003, Nuclear Data SheetsNuclear spectroscopic information for known nuclides of mass number 190 (W,Re,Os,Ir,Pt,Au,Hg,Tl,Pb,Bi,Po) has been evaluated and presented together with adopted energies, Jπ, and decay modes of levels in these nuclei. This evaluation supersedes earlier (1990Si09,1982Le22,1973Sc42) Nuclear Data Sheets for A=190.
Nuclear data sheets for A = 151
1997, Nuclear Data SheetsAbstract:Nuclear spectroscopic information for known nuclides of mass number 151 (Cs, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) with Z=55, 58 to 71 and N=96, 93 to 80 have been evaluated and presented together with adopted energies and Jπ of levels in these nuclei. No excited state data are yet available for151Cs,151Ce, and151Lu. The existence of151Cs is reported from mass separation of products from U(p,X) reaction but there is no information about its half-life.
In151Tb and151Dy, Several excited superdeformed bands have been reported, in addition to the yrast superdeformed band. This evaluation represents a revision of earlier (88Si15) Nuclear Data Sheets for A = 151.
Cutoff Date:Literature available up to January 15, 1997 has been consulted.
General Policies and Organization of Material:See the January issue of Nuclear Data Sheets.
Acknowledgments:The evaluator thanks M. J. Martin at Oak Ridge National Laboratory for a detailed and constructive review of the mass chain, especially, concerning adopted γ-ray branching ratios.
General Comments:The statistical analysis of γ-ray data and deduced level schemes is carried out through computer codes available at Isotopes Project, Berkeley and Nuclear Data Center, Brookhaven. The methodology and procedures for some of these codes are described by 86BrZQ and 86Br21. A general 3% uncertainty is assumed is quoted theoretical internal conversion coefficients taken mainly from 68Ha53. The values of μ and Q are from compilation by 89Ra17, when available.
Nuclear data sheets for A = 151
1988, Nuclear Data SheetsThe 1976 version of A=151 mass chain (76Ha35) has been revised. The evaluated experimental data are presented for 14 known nuclides of A=151 (Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu). Except for their isotopic identification, nothing much is known about 3 nuclides in this mass chain (Ce, Pr, and Lu) which are far off the stability line. High spin excitations are known for 9 nuclides (Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb). Particle transfer data are available for 5 nuclides (Nd, Pm, Sm, Eu and Gd). The neutron capture data are available for 151Sm and 151Nd. In terms of a variety of experimental studies, the 151Sm and 151Eu nuclides are the ones most extensively studied.
The second order electric dipole and quadrupole effects on the 2p<inf> 1 2</inf> hyperfine structure constant in muonic atoms
1976, Nuclear Physics, Section AWe investigate second order electric dipole (E1), electric quadrupole (E2) and E2-M1 interference effects on the hyperfine structure constant in muonic atoms. It is found that static and dynamic E2 contributions give rise to splitting in some nuclei which is almost comparable with the magnetic h.f.s. splitting, whereas the E1 contribution which comes from a deexcitation mechanism is not so large as compared with the E2 contributions. The E2-M1 interference effect is found to be small, but not negligible for some cases.