Radiative muon capture on hydrogen and the induced pseudoscalar coupling

G. Jonkmans; 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; A. J. Larabee; J. A. Macdonald; S. C. Mc Donald; M. Munro; J. M. Poutissou; R. Poutissou; D. H. Wright; D. G. Sample; E. Saettler; C. M. Sigler; G. N. Taylor; D. H. Wright; N. S. Zhang

doi:10.1103/PhysRevLett.77.4512

Radiative muon capture on hydrogen and the induced pseudoscalar coupling

G. Jonkmans, 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, A. J. Larabee, J. A. Macdonald, S. C. Mc Donald, M. Munro, J. M. Poutissou, R. Poutissou, D. H. WrightD. G. Sample, E. Saettler, C. M. Sigler, G. N. Taylor, D. H. Wright, N. S. Zhang

Physics And Astronomy

Research output: Contribution to journal › Article › peer-review

60 Scopus citations

Abstract

The first measurement of the elementary process μ^-p→υ_μnγ is reported. A photon pair spectrometer was used to measure the partial branching ratio (2.10±0.22)×10^-8 for photons of k > 60 MeV. The value of the weak pseudoscalar coupling constant determined from the partial branching ratio is g_p(q²=-0.88m²_μ)=(9.8±0.7±0.3)·g_a(0), where the first error is the quadrature sum of statistical and systematic uncertainties and the second error is due to the uncertainty in λ_op, the decay rate of the ortho to para pμp molecule. This value of g_p is 1.5 times the prediction of PCAC and pion-pole dominance.

Original language	English
Pages (from-to)	4512-4515
Number of pages	4
Journal	Physical Review Letters
Volume	77
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.77.4512
State	Published - 1996

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.77.4512

Cite this

Jonkmans, G., 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., Larabee, A. J., Macdonald, J. A., Mc Donald, S. C., Munro, M., Poutissou, J. M., Poutissou, R., ... Zhang, N. S. (1996). Radiative muon capture on hydrogen and the induced pseudoscalar coupling. Physical Review Letters, 77(22), 4512-4515. https://doi.org/10.1103/PhysRevLett.77.4512

@article{72762a3d6a7941019a3ad7adaf1565c6,

title = "Radiative muon capture on hydrogen and the induced pseudoscalar coupling",

abstract = "The first measurement of the elementary process μ-p→υμnγ is reported. A photon pair spectrometer was used to measure the partial branching ratio (2.10±0.22)×10-8 for photons of k > 60 MeV. The value of the weak pseudoscalar coupling constant determined from the partial branching ratio is gp(q2=-0.88m2μ)=(9.8±0.7±0.3)·ga(0), where the first error is the quadrature sum of statistical and systematic uncertainties and the second error is due to the uncertainty in λop, the decay rate of the ortho to para pμp molecule. This value of g_p is 1.5 times the prediction of PCAC and pion-pole dominance.",

author = "G. Jonkmans 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 Larabee, {A. J.} and Macdonald, {J. A.} and {Mc Donald}, {S. C.} and M. Munro and Poutissou, {J. M.} and R. Poutissou and Wright, {D. H.} and Sample, {D. G.} and E. Saettler and Sigler, {C. M.} and Taylor, {G. N.} and Wright, {D. H.} and Zhang, {N. S.}",

year = "1996",

doi = "10.1103/PhysRevLett.77.4512",

language = "English",

volume = "77",

pages = "4512--4515",

number = "22",

}

Jonkmans, G, 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, Larabee, AJ, Macdonald, JA, Mc Donald, SC, Munro, M, Poutissou, JM, Poutissou, R, Wright, DH, Sample, DG, Saettler, E, Sigler, CM, Taylor, GN, Wright, DH & Zhang, NS 1996, 'Radiative muon capture on hydrogen and the induced pseudoscalar coupling', Physical Review Letters, vol. 77, no. 22, pp. 4512-4515. https://doi.org/10.1103/PhysRevLett.77.4512

TY - JOUR

T1 - Radiative muon capture on hydrogen and the induced pseudoscalar coupling

AU - Jonkmans, G.

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 - Larabee, A. J.

AU - Macdonald, J. A.

AU - Mc Donald, S. C.

AU - Munro, M.

AU - Poutissou, J. M.

AU - Poutissou, R.

AU - Wright, D. H.

AU - Sample, D. G.

AU - Saettler, E.

AU - Sigler, C. M.

AU - Taylor, G. N.

AU - Wright, D. H.

AU - Zhang, N. S.

PY - 1996

Y1 - 1996

N2 - The first measurement of the elementary process μ-p→υμnγ is reported. A photon pair spectrometer was used to measure the partial branching ratio (2.10±0.22)×10-8 for photons of k > 60 MeV. The value of the weak pseudoscalar coupling constant determined from the partial branching ratio is gp(q2=-0.88m2μ)=(9.8±0.7±0.3)·ga(0), where the first error is the quadrature sum of statistical and systematic uncertainties and the second error is due to the uncertainty in λop, the decay rate of the ortho to para pμp molecule. This value of g_p is 1.5 times the prediction of PCAC and pion-pole dominance.

AB - The first measurement of the elementary process μ-p→υμnγ is reported. A photon pair spectrometer was used to measure the partial branching ratio (2.10±0.22)×10-8 for photons of k > 60 MeV. The value of the weak pseudoscalar coupling constant determined from the partial branching ratio is gp(q2=-0.88m2μ)=(9.8±0.7±0.3)·ga(0), where the first error is the quadrature sum of statistical and systematic uncertainties and the second error is due to the uncertainty in λop, the decay rate of the ortho to para pμp molecule. This value of g_p is 1.5 times the prediction of PCAC and pion-pole dominance.

UR - http://www.scopus.com/inward/record.url?scp=3543044711&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3543044711&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.77.4512

DO - 10.1103/PhysRevLett.77.4512

M3 - Article

AN - SCOPUS:3543044711

SN - 0031-9007

VL - 77

SP - 4512

EP - 4515

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

ER -

Radiative muon capture on hydrogen and the induced pseudoscalar coupling

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this