Experimental results on radiative muon capture in complex nuclei

Döbeli, M.; Doser, M.; Elmbt, Larry van; Schaad, M. W.; Truöl, P.; Bay, A.; Perroud, J. P.; Imazato, J.

doi:10.1007/bf01597843

Cited by 10 publications

(4 citation statements)

References 9 publications

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“…In Table XIV we summarize the results of Hart et al (1977), Döbeli et al (1986) and Virtue et al (1990). We omit the earliest results of di Lella et al (1971), which suffered severe neutron backgrounds.…”

Section: Comments On Photon Asymmetries In Nuclear Rmcmentioning

confidence: 99%

“…In the first measurement by di Lella et al (1971) the authors used a single NaI crystal for γ-ray detection. In the later measurements by Hart et al (1977), Döbeli et al (1986) and Virtue et al (1990) the authors used a separate γ-ray converter and NaI calorimeter. A 40 Ca target was used in each experiment.…”

Section: Comments On Photon Asymmetries In Nuclear Rmcmentioning

confidence: 99%

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Induced pseudoscalar coupling of the proton weak interaction

2003

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The induced pseudoscalar coupling gp is the least well known of the weak coupling constants of the proton's charged-current interaction. Its size is dictated by chiral symmetry arguments, and its measurement represents an important test of quantum chromodynamics at low energies. During the past decade a large body of new data relevant to the coupling gp has been accumulated. This data includes measurements of radiative and non radiative muon capture on targets ranging from hydrogen and few-nucleon systems to complex nuclei. Herein the authors review the theoretical underpinnings of gp, the experimental studies of gp, and the procedures and uncertainties in extracting the coupling from data. Current puzzles are highlighted and future opportunities are discussed.

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Section: Comments On Photon Asymmetries In Nuclear Rmcmentioning

confidence: 99%

Section: Comments On Photon Asymmetries In Nuclear Rmcmentioning

confidence: 99%

Induced pseudoscalar coupling of the proton weak interaction

2003

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“…Unfortunately, this pileup effect was not discovered until the publication of preliminary results at two different conferences: a partial branching ratio of (6.5 ± 1.3) xlO -5 was given in reference [124] and an even higher value of (9.3 ± 1.9) xlO~" 5 was given in reference [126]. 40 Ca for the appropriate value of g p /g a .…”

Section: Ie Omentioning

confidence: 99%

“…Just as for their 16 0 data, only the modular Nal(Tl) detector gave useable data, sincethe single crystal Nal(Tl) detector was swamped by pileup events. The preliminary results for the partial branching ratio of (7.4±1.8)xl0 -5 presented in reference[124]…”

mentioning

confidence: 99%

Radiative muon capture on carbon, oxygen, and calcium

Armstrong¹,

Ahmad²,

Burnham³

et al. 1991

Phys. Rev. C

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The photon energy spectra fro111 radiative xxluon captBle on C, 0, and Ca llave bee11 measured using a. time projection chamber as a pair spectrometer. The branching ratio for radiative muon capture is sensitive to g", the induced pseudoscalar coupling constant of the weak interaction, Expressed in terms of the axial-vector weak coupling constant g, values of g"/go = 5.7 6 0.8 and gJ, /g = 7.3 + 0.9 are obtained for Ca. and ' 0, respectively, from comparison with phenomenological calculations of the nuclear response. Froxxi comparison with microscopic calculations, values of g&/g~= 4.6 + 1.8, 13.6 +~s , and 16.2 +o'7 for Ca. , ' 0, and C, respectively, are obtained. The microscopic results are suggestive of a renormalization of the nucleonic form factors within the nucleus.

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