Coulomb Displacement Energies of Ca-Sc Isobaric Pairs

Nolen, J.A.; Schiffer, J. P.; Williams, N.; Ehrenstein, D. von

doi:10.1103/physrevlett.18.1140

Cited by 60 publications

(8 citation statements)

References 13 publications

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“…The Coulomb interaction energies V s and all the other parameters decrease by the same percentage. From the Coulomb interaction energies of 3and (4). It is hoped that eventually this effect can be understood 9) on more general grounds, in particular with regard to the differences between the radii of the proton and neutron mass distributions.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, the quantity c in eqs. (3) and (4) was replaced by the two quantities c (1) and c (2), respectively. The differences c(1)-c and c (2) -c represent the contributions from the electromagnetic spin-orbit interaction and from other small effects like charge dependent nuclear forces.…”

Section: V~ven -;-~(Vo+ Svz+9v4 +13v6)"mentioning

confidence: 99%

“…The experimental energy of this state is too low by about 45 keV; this is more than 20 times the experimental uncertainty and more than five times the standard deviation derived from all experimental energies. Nolen et al 4) pointed out that this deviation may possibly be caused by an isospin admixture because 42Sc has T= = 0 and the energy…”

Section: The Least-squares Analysismentioning

confidence: 99%

“…Coulomb displacement energies usually depend on N (isotope effect) and on the configurations of the corresponding states. These effects were studied recently [2][3][4] for the Coulomb displacement energies in or including the lf~ shell. Harchol et al 2) discussed the experimental data in terms of the Coulomb energy expression of Carlson and Talmi 5).…”

Section: Introductionmentioning

confidence: 99%

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Coulomb displacement energies in the shell

Jänecke

1968

Nuclear Physics A

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The experimental Coulomb displacement energies in the lf~ shell (except one) can be described by Hecht's Coulomb energy equation with a standard deviation of 8.5 keV if it is assumed that the Coulomb interaction radius is 2.6±0.5 o~ larger for the completely filled shell than it is for the unfilled shell. The standard error of the calculated energies is 1.8 keV. Electromagnetic spin-orbit effects are indicated. The two Coulomb interaction energies V 0 and ~even which were obtained from the least-squares analysis are in very good agreement with the theoretically predicted values. The energy of the 0 +, T = 1 ground state of 4~Sc is too low and deviates by about 45 keV from the expected value.

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Section: Resultsmentioning

confidence: 99%

Section: V~ven -;-~(Vo+ Svz+9v4 +13v6)"mentioning

confidence: 99%

Section: The Least-squares Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Coulomb displacement energies in the shell

Jänecke

1968

Nuclear Physics A

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“…The neutron wave functions are also available and may be compared with experimental results on the Coulomb displacement energies of isobaric analog pairs. 60 Considering the very rapid advance of technology in muonic x-ray, electron scattering, and electronic x-ray work, it seems likely that a very large collection of precise IS results will soon become available to challenge and perhaps inspire the nuclear theorist.…”

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confidence: 99%

Precise MuonicKαIsotope Shifts for Nuclides from Si to Sn

Ehrlich

1968

Phys. Rev.

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an energy dependence of the form 1+bW" 1 with an average value of 6=0.17 has also been reported. 20 * 25 " 27 Although this energy dependence is not in serious disagreement with the present measurement, it cannot be reconciled with a recent measurement of the longitudinal ft polarization P= (1.00±0.01)z>/c. 28 Analyzing their results of the /^-polarization measurement, Wenninger et at. 28 concluded an upper limit of 0.008 ±0.025 for the coefficient b. If, however, the shape Measurements of muonic Ka isotope shifts for 29 nuclides are described in detail. In most cases, these measurements provide unique information on changes in the nuclear charge distribution. The model dependence of the changes in rms radii derived from the muonic shifts (necessary for comparison with electronic data) is discussed in detail. The muonic shifts in Sr, Zr, and Sn are compared with the relevant electronic measurements; the Ca isotope shifts are compared with the results of recent electron scattering results. Strong shell effects are confirmed at N=2S and 88, viz., Ca 48 and Sr 88 are found to have smaller rms charge radii than Ca 40 and Sr 86 . Precise values are also obtained for the K-Ca isotone shifts and for the absolute energies of nine Ka transitions.

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