Nuclear matrix elements of neutral currents in muonic atom decays

doi:10.1016/0375-9474(75)90541-2

Nuclear Physics A

Volume 251, Issue 3, 27 October 1975, Pages 457-464

https://doi.org/10.1016/0375-9474(75)90541-2 Get rights and content

Abstract

The nuclear matrix elements of the parity-violating effects of neutral currents are examined for the three light nuclei ⁶Li, ⁷Li and ⁹Be. These matrix elements will play important roles in the quantitative analysis of neutral currents if the hyperfine effects in parity-violating muonic atom decays are actually observed. The matrix elements are related to magnetic electron scattering data. For ⁶Li, for which scattering data are available, the calculated matrix elements contain the least uncertainty from nuclear physics. For ⁷Li and ⁹Be, for which data are unavailable, reasonably good models, such as the j-j coupling limit and the intermediate coupling model, are employed in computing the matrix elements.

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Cited by (2)

The neutral weak current in muonic atoms
1985, Physics Reports
The measurement of parity-odd observables in muonic atoms has eluded realization for ten years. Nevertheless, determination of the coupling constants which characterize the weak neutral current of muons remains an important goal. Since the muonic atom is essentially an hydrogen-like system, the precise determination of neutral current couplings and observation of higher order weak and electromagnetic corrections may be possible. Moreover, the effects of neutral currents in atomic systems are determined by a different combination of couplings than effects measured at high energy. Finally, comparison of effects in muonic and conventional atoms would confirm the university of neutral current couplings.
Current proposals to measure parity-odd observables exploit the physics of nuclei and atoms as well as of muonic atoms. This report attempts a systematic presentation of the physics required to understand the proposals and the interpretation of the measurements. The three most promising measurements in thulium, neon and boron are discussed in detail.
The photon-electron directional correlation and the weak neutral current in muonic boron
1990, Zeitschrift für Physik D Atoms, Molecules and Clusters

^☆: This research was supported in part by the National Science Foundation and by the US Energy Research and Development Administration.

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Nuclear Physics A

Nuclear matrix elements of neutral currents in muonic atom decays☆

Abstract

Phys. Rev.

Phys. Lett.

Phys. Lett.

Nucl. Phys.

Nuclear shell theory

Phys. Rev.

Nucl. Phys.

The neutral weak current in muonic atoms

The photon-electron directional correlation and the weak neutral current in muonic boron