Títol:
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Nuclear sizes and the isotope shift
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Autor/a:
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Friar, J. L.; Martorell Domenech, Juan; Sprung, Donald W. L.
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Altres autors:
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Universitat de Barcelona |
Abstract:
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Darwin-Foldy nuclear-size corrections in electronic atoms and nuclear radii are discussed from the nuclear-physics perspective. The interpretation of precise isotope-shift measurements is formalism dependent, and care must be exercised in interpreting these results and those obtained from relativistic electron scattering from nuclei. We strongly advocate that the entire nuclear-charge operator be used in calculating nuclear-size corrections in atoms rather than relegating portions of it to the nonradiative recoil corrections. A preliminary examination of the intrinsic deuteron radius obtained from isotope-shift measurements suggests the presence of small meson-exchange currents (exotic binding contributions of relativistic order) in the nuclear charge operator, which contribute approximately 1/2%. |
Matèries:
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-Estructura electrònica -Teoria atòmica -Electronic structure -Atomic theory |
Drets:
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(c) The American Physical Society, 1997
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Tipus de document:
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Article Article - Versió publicada |
Publicat per:
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The American Physical Society
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Compartir:
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