Systematic effects of charge independence breaking on energies of analog states

Sherr, R.; Talmi, Igal

doi:10.1016/0370-2693(75)90377-9

Cited by 20 publications

(2 citation statements)

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“…This is consistent with the np interaction in the T = l state, being 2-3% more attractive than the nn interaction (see also Kahana 1972). Very recent analyses of AE, of the analogue states in the ld312 shell (A = 33-36) by Sherr and Talmi (1975) and in the l f 7 , ~ shell ( A =41-54) by Gomez (1976) also provide systematic evidence for a CIB interaction. The values deduced in these analyses for the d3$(0) and d3p2 ( J = 2 ) matrix elements of the CIB interaction are -90 and -45 keV, respectively.…”

Section: Charge Dependence Vnp #Vnnsupporting

confidence: 68%

Nuclear Coulomb energies

1978

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The present status of the theory of Coulomb displacement energies, AE,, of analogue states in nuclei (mirror nuclei in particular) is reviewed. I n recent years, a considerable amount of investigation has been carried out on the problem of evaluating 4E, in order to resolve the persistent discrepancy between theory and experiment over a wide range of nuclei. The calculated values are found to be N 7% smaller than the experimental values. This discrepancy is known as the Okamoto-Nolen-Schiffer anomaly. We review in this work all possible correction terms which contribute more than 10 keV to Coulomb displacement energies. The possible effects of charge dependence in the nuclear forces, and in particular charge asymmetry (Vnn # Vpp), on the calculated values of 4Ec are discussed in detail. Effects due to the interplay between the Coulomb and nuclear forces on AE, are also considered in detail. We especially emphasise the relation between AEc and AY = Yn -rP, the difference between the RMS radii of the proton density distribution and the neutron density distribution in nuclei. We also discuss and suggest the (possible) solution of the Coulomb energy problem in nuclei.

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Section: Charge Dependence Vnp #Vnnsupporting

confidence: 68%

Nuclear Coulomb energies

1978

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“…The present measurement is in good agreement with the prediction employing the effective USD interaction. A configuration mixing which was suspected to exist for the T = 3/2 seems to be confirmed [17]. A simple Z/A collective prediction, g coll = 0.542, doubles the experimental value, thus promoting the dominant single-particle nature in the ground state wavefunction of 35 K. The sign of g can not be determined directly from the current measurement.…”

Section: Discussionmentioning

confidence: 77%

Ground state magnetic dipole moment ofK35

et al. 2006

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The ground state magnetic moment of 35 K has been measured using the technique of nuclear magnetic resonance on β-emitting nuclei. The short-lived 35 K nuclei were produced following the reaction of a 36 Ar primary beam of energy 150 MeV/nucleon incident on a Be target. The spin polarization of the 35 K nuclei produced at 2 • relative to the normal primary beam axis was confirmed. Together with the mirror nucleus 35 S, the measurement represents the heaviest T = 3/2 mirror pair for which the spin expectation value has been obtained. A linear behavior of g p vs g n has been demonstrated for the T = 3/2 known mirror moments and the slope and intercept are consistent with the previous analysis of T = 1/2 mirror pairs.

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Mass Measurements of Proton-Rich Nuclei and Exotic Spectroscopy

Tribble

1980

Atomic Masses and Fundamental Constants 6

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Systematic effects of charge independence breaking on energies of analog states

Cited by 20 publications

References 9 publications

Nuclear Coulomb energies

Nuclear Coulomb energies

Ground state magnetic dipole moment ofK35

Mass Measurements of Proton-Rich Nuclei and Exotic Spectroscopy

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