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Muon Capture in Hydrogen

  • J. Martino
Part of the Ettore Majorana International Science Series book series (EMISS, volume 23)

Abstract

Muon capture on the proton is a privileged tool to study the hadronic weak currents at low energy, especially in what concerns the pseudo-scalar form factor. In this lecture I will mainly speak about the recent results1 obtained by the Saclay-CERN-Bologna (SCB) collaboration on the muon capture rate at rest in liquid hydrogen. In the first talk I shall first briefly remind the theoretical description of the capture process, then describe the experimental difficulties and procedures and finally present the results obtained. In the second talk I shall compare them to other capture experiments on the proton and present the informations that are provided by muon capture in hydrogen, especially for the PCAC hypothesis, the second class currents and the μ-e universality. Finally I shall present the possible muon capture experiments on the proton that could still be undertaken in order to improve our present knowledge of the subject.

Keywords

Capture Rate Capture Neutron Liquid Hydrogen Muon Capture Decay Electron 
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References

  1. 1.
    i) G. Bardin et al., Nucl. Phys. A352: 365 (1981)ADSGoogle Scholar
  2. ii).
    G. Bardin et al., Phys. Lett. 104B: 320 (1981)ADSGoogle Scholar
  3. iii).
    G. Bardin et al., Phys. Lett. to be published (1984)Google Scholar
  4. iv).
    see also in G. Bardin, These Doctorat d’Etat, University of Paris-Sud, n°2647 (1982)Google Scholar
  5. v).
    and in J. Martino, These Doctorat d’Etat, University of Paris-Sud, n°2567 (1982)Google Scholar
  6. vi).
    a detailed description of the target is given in M. Adam et al., Nucl. Instr. Meth. 177: 305 (1980).CrossRefGoogle Scholar
  7. 2.
    We follow closely the theoretical exposition of H. Primakoff, in Muon Physics II (Academic Press, Inc., New York, 1975), p.3, and use the same symbols.Google Scholar
  8. 3.
    See in ref. 1 (iii) and (v) and in ref. 2.Google Scholar
  9. 4.
    See in ref. 1 (v) and E.R. Shrock et al., Phys. Rev. Lett. 41: 1692 (1978).ADSCrossRefGoogle Scholar
  10. 5.
    G.G. Simon et al., Nucl. Phys. A333: 381 (1980).ADSGoogle Scholar
  11. 6.
    M.R. Goldman, Nucl. Phys. B49: 621 (1972).ADSCrossRefGoogle Scholar
  12. 7.
    R.P. Feynman et al., Phys. Rev. 109: 193 (1958)MathSciNetADSMATHCrossRefGoogle Scholar
  13. S.S. Gershstein et al., Zh. Eksp. Teor. Fiz. 29: 698 (1955) (Sov. Phys. JETP 2: 76 (1957).Google Scholar
  14. 8.
    See in ref. 5 for the proton, and for the neutron in V.E. Krohn et al., Phys. Rev. D8:1305 (1973)ADSGoogle Scholar
  15. L. Koester et al., Phys. Rev. Lett. 36:1021 (1976)ADSCrossRefGoogle Scholar
  16. G.G. Simon et al., Z. Naturforsch. 35a: 1 (1979).ADSGoogle Scholar
  17. 9.
    Particle Data Group, Review of Particle Properties, Rev. Mod. Phys. 52 Google Scholar
  18. 10. i).
    N. Armenise et al., Nucl. Phys. C16: 397 (1977)Google Scholar
  19. ii).
    N.J. Baker et al., Phys. Rev. D23: 2499 (1981).ADSGoogle Scholar
  20. 11.
    S. Weinberg, Phys. Rev. 112: 1375 (1958).ADSMATHCrossRefGoogle Scholar
  21. 12.
    H. Primakoff, Rev. Mod. Phys. 31: 802 (1959).ADSMATHCrossRefGoogle Scholar
  22. 13.
    See i) E. Zavattini, in Muon Physics II (Academic Press, Inc., New York, 1975) p. 219Google Scholar
  23. ii).
    S.S. Gershtein et al., in Muon Physics III (Academic Press, Inc., New York, 1975) p. 142.Google Scholar
  24. 14.
    S. Weinberg, Phys. Rev. Lett. 4 585 (1960); see also in ref. 1 (iv) and in ref. 16.ADSCrossRefGoogle Scholar
  25. 15.
    See in ref. 13 (i).Google Scholar
  26. 16.
    D.D. Bakalov et al., Nucl. Phys. A384: 302 (1982).ADSGoogle Scholar
  27. 17.
    See in ref. 13 (ii).Google Scholar
  28. 18.
    This is the combination of the results quoted in ref. 9 and in G. Bardin et al., Phys. Lett. B79: 52 (1978).ADSGoogle Scholar
  29. 19.
    K.L. Giovanetti et al., Phys. Rev. D29: 343 (1984).ADSGoogle Scholar
  30. 20.
    H. Uberall, Phys. Rev. 119: 365 (1960).ADSCrossRefGoogle Scholar
  31. 21.
    R. Winston, Phys. Rev. 129: 2766 (1963).ADSCrossRefGoogle Scholar
  32. 22.
    See in ref. 1 (iv).Google Scholar
  33. 23.
    See in ref. 2 and in ref. 1 (v).Google Scholar
  34. 24.
    See in ref. 2.Google Scholar
  35. 25.
    See for instance (i) S.L. Adler, Ann. Phys. 50: 189 (1968) andADSCrossRefGoogle Scholar
  36. ii).
    M. Chemtob et al., Nucl. Phys. A163: 1 (1971).ADSGoogle Scholar
  37. 26.
    D.V. Bugg et al., Phys. Lett. B44: 248 (1973)ADSGoogle Scholar
  38. M. McGregor et al., Phys. Rev. 182: 1714 (1969).ADSCrossRefGoogle Scholar
  39. 27.
    K. Holinde, Phys. Rep. 68 (3) (1981).Google Scholar
  40. 28.
    L.P. Roesch et al., Phys. Rev. Lett. 46: 1507 (1981).ADSCrossRefGoogle Scholar
  41. 29.
    Y. Kuno et al., to be published; see also inM. Fukui et al., Phys. Lett. B132: 255 (1983).ADSGoogle Scholar
  42. 30.
    See in ref. 10 (ii).Google Scholar
  43. 31.
    M. Morita et al., Phys. Lett. B73: 17 (1978).ADSGoogle Scholar
  44. 32.
    B.R. Holstein, Phys. Rev. C29:623 (1984).ADSGoogle Scholar
  45. 33.
    See in ref. 34, table 1.Google Scholar
  46. 34.
    G. Azuelos et al., TRIUMF Research Proposal.Google Scholar
  47. 35.
    R. Hildebrand, Phys. Rev. Lett. 8: 34 (1962); J.H. Doede et al., quoted by C. Rubbia in Proc. Intern. Conf. on Fundamental Aspects of Weak Interactions, Brookhaven (1963).ADSCrossRefGoogle Scholar
  48. 36.
    E. Bertolini et al., Proc. Conf. High Energy Physics, CERN (1962); S. Focardi et al., quoted by C. Rubbia in Proc. Intern. Conf. on Fundamental Aspects of Weak Interactions, Brookhaven (1963).Google Scholar
  49. 37.
    E.J. Bleser et al., Phys. Rev. Lett. 8: 288 (1962).ADSCrossRefGoogle Scholar
  50. 38.
    J.E. Rothberg et al., Phys. Rev. 132: 2664 (1963).ADSCrossRefGoogle Scholar
  51. 39.
    A. Alberigi Quaranta et al., Phys. Rev. 177: 2118 (1969).ADSCrossRefGoogle Scholar
  52. 40.
    V.M. Bystritskii et al., Sov. Phys. JETP 39: 19 (1974).ADSGoogle Scholar

Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • J. Martino
    • 1
  1. 1.Service de Physique Nucléaire — Haute EnergieCEN SaclayGif-sur-Yvette CedexFrance

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