Radiative muon capture on carbon, oxygen, and calcium

D. S. Armstrong; S. Ahmad; R. A. Burnham; T. P. Gorringe; M. D. Hasinoff; A. J. Larabee; C. E. Waltham; G. Azuelos; J. A. MacDonald; T. Numao; J. M. Poutissou; M. Blecher; D. H. Wright; E. T.H. Clifford; J. Summhammer; P. Depommier; R. Poutissou; H. Mes; B. C. Robertson

doi:10.1103/PhysRevC.43.1425

Radiative muon capture on carbon, oxygen, and calcium

D. S. Armstrong, S. Ahmad, R. A. Burnham, T. P. Gorringe, M. D. Hasinoff, A. J. Larabee, C. E. Waltham, G. Azuelos, J. A. MacDonald, T. Numao, J. M. Poutissou, M. Blecher, D. H. Wright, E. T.H. Clifford, J. Summhammer, P. Depommier, R. Poutissou, H. Mes, B. C. Robertson

Physics And Astronomy

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Abstract

The photon energy spectra from radiative muon capture on C12, O16, and Ca40 have been measured using a time projection chamber as a pair spectrometer. The branching ratio for radiative muon capture is sensitive to gp, the induced pseudoscalar coupling constant of the weak interaction. Expressed in terms of the axial-vector weak coupling constant ga, values of gp/ga=5.7±0.8 and gp/ga=7.3±0.9 are obtained for Ca40 and O16, respectively, from comparison with phenomenological calculations of the nuclear response. From comparison with microscopic calculations, values of gp/ga=4.6±1.8, 13.6-1.9+1.6, and 16.2-0.7+1.3 for Ca40, O16, and C12, respectively, are obtained. The microscopic results are suggestive of a renormalization of the nucleonic form factors within the nucleus.

Original language	English
Pages (from-to)	1425-1447
Number of pages	23
Journal	Physical Review C - Nuclear Physics
Volume	43
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.43.1425
State	Published - 1991

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.43.1425

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Armstrong, D. S., Ahmad, S., Burnham, R. A., Gorringe, T. P., Hasinoff, M. D., Larabee, A. J., Waltham, C. E., Azuelos, G., MacDonald, J. A., Numao, T., Poutissou, J. M., Blecher, M., Wright, D. H., Clifford, E. T. H., Summhammer, J., Depommier, P., Poutissou, R., Mes, H., & Robertson, B. C. (1991). Radiative muon capture on carbon, oxygen, and calcium. Physical Review C - Nuclear Physics, 43(3), 1425-1447. https://doi.org/10.1103/PhysRevC.43.1425

@article{9e90d142cae94607af0f93e1ee99bf5b,

title = "Radiative muon capture on carbon, oxygen, and calcium",

abstract = "The photon energy spectra from radiative muon capture on C12, O16, and Ca40 have been measured using a time projection chamber as a pair spectrometer. The branching ratio for radiative muon capture is sensitive to gp, the induced pseudoscalar coupling constant of the weak interaction. Expressed in terms of the axial-vector weak coupling constant ga, values of gp/ga=5.7±0.8 and gp/ga=7.3±0.9 are obtained for Ca40 and O16, respectively, from comparison with phenomenological calculations of the nuclear response. From comparison with microscopic calculations, values of gp/ga=4.6±1.8, 13.6-1.9+1.6, and 16.2-0.7+1.3 for Ca40, O16, and C12, respectively, are obtained. The microscopic results are suggestive of a renormalization of the nucleonic form factors within the nucleus.",

author = "Armstrong, {D. S.} and S. Ahmad and Burnham, {R. A.} and Gorringe, {T. P.} and Hasinoff, {M. D.} and Larabee, {A. J.} and Waltham, {C. E.} and G. Azuelos and MacDonald, {J. A.} and T. Numao and Poutissou, {J. M.} and M. Blecher and Wright, {D. H.} and Clifford, {E. T.H.} and J. Summhammer and P. Depommier and R. Poutissou and H. Mes and Robertson, {B. C.}",

year = "1991",

doi = "10.1103/PhysRevC.43.1425",

language = "English",

volume = "43",

pages = "1425--1447",

number = "3",

}

Armstrong, DS, Ahmad, S, Burnham, RA, Gorringe, TP, Hasinoff, MD, Larabee, AJ, Waltham, CE, Azuelos, G, MacDonald, JA, Numao, T, Poutissou, JM, Blecher, M, Wright, DH, Clifford, ETH, Summhammer, J, Depommier, P, Poutissou, R, Mes, H & Robertson, BC 1991, 'Radiative muon capture on carbon, oxygen, and calcium', Physical Review C - Nuclear Physics, vol. 43, no. 3, pp. 1425-1447. https://doi.org/10.1103/PhysRevC.43.1425

TY - JOUR

T1 - Radiative muon capture on carbon, oxygen, and calcium

AU - Armstrong, D. S.

AU - Ahmad, S.

AU - Burnham, R. A.

AU - Gorringe, T. P.

AU - Hasinoff, M. D.

AU - Larabee, A. J.

AU - Waltham, C. E.

AU - Azuelos, G.

AU - MacDonald, J. A.

AU - Numao, T.

AU - Poutissou, J. M.

AU - Blecher, M.

AU - Wright, D. H.

AU - Clifford, E. T.H.

AU - Summhammer, J.

AU - Depommier, P.

AU - Poutissou, R.

AU - Mes, H.

AU - Robertson, B. C.

PY - 1991

Y1 - 1991

N2 - The photon energy spectra from radiative muon capture on C12, O16, and Ca40 have been measured using a time projection chamber as a pair spectrometer. The branching ratio for radiative muon capture is sensitive to gp, the induced pseudoscalar coupling constant of the weak interaction. Expressed in terms of the axial-vector weak coupling constant ga, values of gp/ga=5.7±0.8 and gp/ga=7.3±0.9 are obtained for Ca40 and O16, respectively, from comparison with phenomenological calculations of the nuclear response. From comparison with microscopic calculations, values of gp/ga=4.6±1.8, 13.6-1.9+1.6, and 16.2-0.7+1.3 for Ca40, O16, and C12, respectively, are obtained. The microscopic results are suggestive of a renormalization of the nucleonic form factors within the nucleus.

AB - The photon energy spectra from radiative muon capture on C12, O16, and Ca40 have been measured using a time projection chamber as a pair spectrometer. The branching ratio for radiative muon capture is sensitive to gp, the induced pseudoscalar coupling constant of the weak interaction. Expressed in terms of the axial-vector weak coupling constant ga, values of gp/ga=5.7±0.8 and gp/ga=7.3±0.9 are obtained for Ca40 and O16, respectively, from comparison with phenomenological calculations of the nuclear response. From comparison with microscopic calculations, values of gp/ga=4.6±1.8, 13.6-1.9+1.6, and 16.2-0.7+1.3 for Ca40, O16, and C12, respectively, are obtained. The microscopic results are suggestive of a renormalization of the nucleonic form factors within the nucleus.

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DO - 10.1103/PhysRevC.43.1425

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SN - 0556-2813

VL - 43

SP - 1425

EP - 1447

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

ER -

Radiative muon capture on carbon, oxygen, and calcium

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