Radiative muon capture on 16O

doi:10.1016/0370-2693(85)90135-2

Physics Letters B

Volume 150, Issues 1–3, 3 January 1985, Pages 50-52

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Abstract

Predictions of the photon spectrum of radiative muon capture on $^{16} O$ are given within a phenomenological approach for a realistic nuclear excitation spectrum which includes low-lying excited states. Preliminary experimental results are totally at variance with the predictions based on the canonical value of the induced pseudoscalar coupling constant gp.

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Cited by (15)

Radiative muon capture and the value of g<inf>P</inf> in nuclei
1990, Physics Letters B
Radiative muon capture by nuclei is analyzed by means of sum rule techniques, providing a total photon yield calculated with RPA precision. The measured yields relative to the ordinary muon capture rate are well reproduced for the nuclei ¹²C, ¹⁶O and ⁴⁰Ca using a value of the pseudoscalar weak coupling constant g_P enhanced by only 25% with respect to its canonical value. Therefore, the large renormalization of g_P claimed up to now must be reconsidered.
Radiative muon capture on carbon, oxygen, and calcium
1990, Nuclear Physics B (Proceedings Supplements)
Continuity-equation constraint in the two-vertex nuclear processes: Radiative muon capture on 16O and 40Ca
1986, Nuclear Physics, Section A
A modified form of the impulse-approximation effective hamiltonian of the nuclear radiative muon capture (RMC) is developed. In the derivation we have used the electromagnetic current-continuity equation; the procedure is actually an extension for the nonzero momentum transfer of the Siegert theorem. Radiative capture rates and spectra of the emitted photons for RMC on ¹⁶O and ⁴⁰Ca are analysed by using the nuclear shell-model wave functions for the calculation of the partial RMC transition rates. The spectra obtained are strongly reduced in comparison with the standard impulse-approximation calculations and agree with the phenomenological results. The main contradiction of recent RMC theoretical works has been resolved in this way.
Radiative capture of polarised muons on 16O and 40Ca
1987, Nuclear Physics, Section A
The coefficient of asymmetry Γ_γ(k) of the photon angular distribution (with respect to the muon spin) and photon circular polarisation P_γ(k) have been calculated for the radiative muon capture (RMC) on ¹⁶O and ⁴⁰Ca and compared with the data. Nuclear states are treated in a microscopic model; the RMC characteristics are obtained by summing the contributions of individual partial transitions rather than by using the closure approximation.
Induced pseudoscalar coupling of the proton weak interaction
2004, Reviews of Modern Physics
Photon asymmetry measurement in radiative muon capture on 40Ca
2003, Physical Review C - Nuclear Physics

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¹: Partially supported by INFN, Sezione di Pisa, Italy.

²: Permanent address: Institute of Nuclear Physics CSAV, CS 250 68 Řež, Prague, Czechoslovakia.

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Physics Letters B

Abstract

References (16)

Nucl. Phys.

Phys. Lett.

Nucl. Phys.

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Phys. Rev. Lett.

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Cited by (15)

Radiative muon capture and the value of g<inf>P</inf> in nuclei

Radiative muon capture on carbon, oxygen, and calcium

Continuity-equation constraint in the two-vertex nuclear processes: Radiative muon capture on <sup>16</sup>O and <sup>40</sup>Ca

Radiative capture of polarised muons on <sup>16</sup>O and <sup>40</sup>Ca

Induced pseudoscalar coupling of the proton weak interaction

Photon asymmetry measurement in radiative muon capture on <sup>40</sup>Ca