Measurement of the induced pseudoscalar coupling using radiative muon capture on hydrogen

D. H. Wright; S. Ahmad; D. S. Armstrong; G. Azuelos; W. Bertl; M. Blecher; C. Q. Chen; P. Depommier; B. C. Doyle; T. von Egidy; T. P. Gorringe; P. Gumplinger; M. D. Hasinoff; D. Healey; G. Jonkmans; A. J. Larabee; J. A. Macdonald; S. C. McDonald; M. Munro; J. M. Poutissou; R. Poutissou; B. C. Robertson; D. G. Sample; E. Saettler; C. N. Sigler; G. N. Taylor; N. S. Zhang

doi:10.1103/PhysRevC.57.373

Measurement of the induced pseudoscalar coupling using radiative muon capture on hydrogen

D. H. Wright, S. Ahmad, D. S. Armstrong, G. Azuelos, W. Bertl, M. Blecher, C. Q. Chen, P. Depommier, B. C. Doyle, T. von Egidy, T. P. Gorringe, P. Gumplinger, M. D. Hasinoff, D. Healey, G. Jonkmans, A. J. Larabee, J. A. Macdonald, S. C. McDonald, M. Munro, J. M. PoutissouR. Poutissou, B. C. Robertson, D. G. Sample, E. Saettler, C. N. Sigler, G. N. Taylor, N. S. Zhang

Physics And Astronomy

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Abstract

The photon energy spectrum from the elementary process [Formula Presented] was measured using a photon pair-spectrometer at the TRIUMF cyclotron. Various sources of backgrounds are discussed in detail and evaluated. From the final spectrum the partial branching ratio [Formula Presented] and the pseudoscalar coupling [Formula Presented] were extracted. The values obtained are [Formula Presented] MeV[Formula Presented] and [Formula Presented], respectively. The first error is the quadrature sum of statistical and systematic errors, while the second error is due to the uncertainty in [Formula Presented] the transition rate of the [Formula Presented] molecule from ortho to para states. This measurement of [Formula Presented] the most precise to date, agrees with all but one of the previous measurements. However it is 1.46 times the value predicted by the partially conserved axial current hypothesis and pion pole dominance.

Original language	English
Pages (from-to)	373-390
Number of pages	18
Journal	Physical Review C - Nuclear Physics
Volume	57
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.57.373
State	Published - 1998

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.57.373

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Wright, D. H., Ahmad, S., Armstrong, D. S., Azuelos, G., Bertl, W., Blecher, M., Chen, C. Q., Depommier, P., Doyle, B. C., von Egidy, T., Gorringe, T. P., Gumplinger, P., Hasinoff, M. D., Healey, D., Jonkmans, G., Larabee, A. J., Macdonald, J. A., McDonald, S. C., Munro, M., ... Zhang, N. S. (1998). Measurement of the induced pseudoscalar coupling using radiative muon capture on hydrogen. Physical Review C - Nuclear Physics, 57(1), 373-390. https://doi.org/10.1103/PhysRevC.57.373

@article{4488862cbf2d4ad0b879b76038e97884,

title = "Measurement of the induced pseudoscalar coupling using radiative muon capture on hydrogen",

abstract = "The photon energy spectrum from the elementary process [Formula Presented] was measured using a photon pair-spectrometer at the TRIUMF cyclotron. Various sources of backgrounds are discussed in detail and evaluated. From the final spectrum the partial branching ratio [Formula Presented] and the pseudoscalar coupling [Formula Presented] were extracted. The values obtained are [Formula Presented] MeV[Formula Presented] and [Formula Presented], respectively. The first error is the quadrature sum of statistical and systematic errors, while the second error is due to the uncertainty in [Formula Presented] the transition rate of the [Formula Presented] molecule from ortho to para states. This measurement of [Formula Presented] the most precise to date, agrees with all but one of the previous measurements. However it is 1.46 times the value predicted by the partially conserved axial current hypothesis and pion pole dominance.",

author = "Wright, {D. H.} and S. Ahmad and Armstrong, {D. S.} and G. Azuelos and W. Bertl and M. Blecher and Chen, {C. Q.} and P. Depommier and Doyle, {B. C.} and {von Egidy}, T. and Gorringe, {T. P.} and P. Gumplinger and Hasinoff, {M. D.} and D. Healey and G. Jonkmans and Larabee, {A. J.} and Macdonald, {J. A.} and McDonald, {S. C.} and M. Munro and Poutissou, {J. M.} and R. Poutissou and Robertson, {B. C.} and Sample, {D. G.} and E. Saettler and Sigler, {C. N.} and Taylor, {G. N.} and Zhang, {N. S.}",

year = "1998",

doi = "10.1103/PhysRevC.57.373",

language = "English",

volume = "57",

pages = "373--390",

number = "1",

}

Wright, DH, Ahmad, S, Armstrong, DS, Azuelos, G, Bertl, W, Blecher, M, Chen, CQ, Depommier, P, Doyle, BC, von Egidy, T, Gorringe, TP, Gumplinger, P, Hasinoff, MD, Healey, D, Jonkmans, G, Larabee, AJ, Macdonald, JA, McDonald, SC, Munro, M, Poutissou, JM, Poutissou, R, Robertson, BC, Sample, DG, Saettler, E, Sigler, CN, Taylor, GN & Zhang, NS 1998, 'Measurement of the induced pseudoscalar coupling using radiative muon capture on hydrogen', Physical Review C - Nuclear Physics, vol. 57, no. 1, pp. 373-390. https://doi.org/10.1103/PhysRevC.57.373

TY - JOUR

T1 - Measurement of the induced pseudoscalar coupling using radiative muon capture on hydrogen

AU - Wright, D. H.

AU - Ahmad, S.

AU - Armstrong, D. S.

AU - Azuelos, G.

AU - Bertl, W.

AU - Blecher, M.

AU - Chen, C. Q.

AU - Depommier, P.

AU - Doyle, B. C.

AU - von Egidy, T.

AU - Gorringe, T. P.

AU - Gumplinger, P.

AU - Hasinoff, M. D.

AU - Healey, D.

AU - Jonkmans, G.

AU - Larabee, A. J.

AU - Macdonald, J. A.

AU - McDonald, S. C.

AU - Munro, M.

AU - Poutissou, J. M.

AU - Poutissou, R.

AU - Robertson, B. C.

AU - Sample, D. G.

AU - Saettler, E.

AU - Sigler, C. N.

AU - Taylor, G. N.

AU - Zhang, N. S.

PY - 1998

Y1 - 1998

N2 - The photon energy spectrum from the elementary process [Formula Presented] was measured using a photon pair-spectrometer at the TRIUMF cyclotron. Various sources of backgrounds are discussed in detail and evaluated. From the final spectrum the partial branching ratio [Formula Presented] and the pseudoscalar coupling [Formula Presented] were extracted. The values obtained are [Formula Presented] MeV[Formula Presented] and [Formula Presented], respectively. The first error is the quadrature sum of statistical and systematic errors, while the second error is due to the uncertainty in [Formula Presented] the transition rate of the [Formula Presented] molecule from ortho to para states. This measurement of [Formula Presented] the most precise to date, agrees with all but one of the previous measurements. However it is 1.46 times the value predicted by the partially conserved axial current hypothesis and pion pole dominance.

AB - The photon energy spectrum from the elementary process [Formula Presented] was measured using a photon pair-spectrometer at the TRIUMF cyclotron. Various sources of backgrounds are discussed in detail and evaluated. From the final spectrum the partial branching ratio [Formula Presented] and the pseudoscalar coupling [Formula Presented] were extracted. The values obtained are [Formula Presented] MeV[Formula Presented] and [Formula Presented], respectively. The first error is the quadrature sum of statistical and systematic errors, while the second error is due to the uncertainty in [Formula Presented] the transition rate of the [Formula Presented] molecule from ortho to para states. This measurement of [Formula Presented] the most precise to date, agrees with all but one of the previous measurements. However it is 1.46 times the value predicted by the partially conserved axial current hypothesis and pion pole dominance.

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U2 - 10.1103/PhysRevC.57.373

DO - 10.1103/PhysRevC.57.373

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EP - 390

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Measurement of the induced pseudoscalar coupling using radiative muon capture on hydrogen

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