Slow Muon Physics

  • Dale R. Harshman
Part of the NATO ASI Series book series (NSSB, volume 169)


Recently, slow positive muons (μ+) have been observed to be emitted from solid rare-gas moderators exposed to a 4.2 MeV incident μ+ beam. Energy spectra obtained from the time of flight data indicate a maximum at ∿ 5 eV with a tail extending to higher energies. The data suggest a “hot muon” emission mechanism, implying a long diffusion length for low-energy μ+ in these solids. Of the targets measured, argon was observed to produce the highest yield (∿ 10−5slow μ+ per incident μ+), providing a useful flux for further experimentation. The discussion presented here centers around these results and their future implications for slow μ+, Mu (μ+e) and Mu+ee) beams. The applications of such beams will also be discussed.


Helium Atom Positive Muon Solid Argon Charge Exchange Cross Section Muonic Helium 
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  1. 1.
    See for example Positron Scattering in Gases, J.W. Humberston and M.R.C. McDowell, eds. ( Plenum, New York, 1983 ).Google Scholar
  2. 2.
    T. Bowen, Physics Today 38: 7, 22 (1985).CrossRefGoogle Scholar
  3. 3.
    D.R. Harshman, J.B. Warren, J.L. Beveridge, K.R. Kendall, R.F. Kiefl, C.J. Oram, A.P. Mills, Jr., W.S. Crane, A.S. Rupaal and J.H. Turner, Phys. Rev. Lett. 56: 2850 (1986);ADSCrossRefGoogle Scholar
  4. D.R. Harshman, Invited Talk, 21 October 1985, Lawrence Livermore National Laboratory, Livermore, California, USAGoogle Scholar
  5. 4.
    D.R. Harshman, A.P. Mills, Jr., J.L. Beveridge, K.R. Kendal, G.D. Morris, M. Senba, J.B. Warren, A.S. Rupaal and J.H. Turner, Phys. Rev. Lett. (submitted)Google Scholar
  6. 5.
    A.P. Mills, Jr. and W.S. Crane, Phys. Rev. Lett. 53: 2165 (1984).ADSCrossRefGoogle Scholar
  7. 6.
    E. Gullikson and A.P. Mills, Jr., Phys. Rev. Lett. 57: 376 (1986).ADSCrossRefGoogle Scholar
  8. 7.
    K.G. Lynn and B. Nielson, Phys. Rev. Lett. 58: 81 (1987).ADSCrossRefGoogle Scholar
  9. 8.
    J.H. Brewer, K.M. Crowe, F.N. Gygax and A. Schenck, in Muon Physics, V.W. Hughes and C.S. Wu eds. (Academic, New York, 1975 ) Vol. I II.Google Scholar
  10. 9.
    J.K.Berkowitz and J.C. Zorn, Phys. Rev. A29: 611 (1974);ADSGoogle Scholar
  11. H.H. Anderson and J.F. Ziegler, Hydrogen Stopping Powers and Ranges in All Elements, ( Pergamon, New York, 1977 );Google Scholar
  12. S.H. Overbury, P.F. Dittner, S. Datz and R.S. Thoe, Radiat. Eff. 41: 219 (1979);CrossRefGoogle Scholar
  13. E. Fermi and E. Teller, Phys. Rev. 72: 399 (1944);ADSCrossRefGoogle Scholar
  14. P.M. Echenique, R.M. Neiminen and R.H. Ritchie, Solid State Commun. 37: 799 (1981).CrossRefGoogle Scholar
  15. 10.
    Rare Gas Solids, M.L. Klein and J.A. Venables, eds. (Academic, London, 1976 ). Rare-gas solids grown from the vapor phase are typically polycrystalline.Google Scholar
  16. 11.
    W.E. Kaupilla and T.S. Stein, in Ref. 1, p. 15.Google Scholar
  17. 12.
    D.R. Harshman, Ph.D. Thesis, Univ. of British Columbia (1986), available from University Microfilms, Ann Arbor, MI.Google Scholar
  18. 13.
    D.R. Harshman, Hyperfine Interactions, 32: 847 (1986).ADSCrossRefGoogle Scholar
  19. 14.
    W.E. Kauppila, T.S. Stein and G. Jesion, Phys. Rev. Lett. 36: 580 (1976).ADSCrossRefGoogle Scholar
  20. 15.
    R.P. McEachran, A.G. Ryman and A.D. Stauffer, J. Phys. B. At. Mol. Phys. 11: 551 (1978).ADSCrossRefGoogle Scholar
  21. 16.
    A.P. Mills, Jr., Appl. Phys. 23: 189 (1980).ADSCrossRefGoogle Scholar
  22. 17.
    K. Nagamine, Invited talk at IIIrd LAMPF II Workshop ( Los Alamos, July 1983 );Google Scholar
  23. A Ohsaki, T. Watanabe, K. Nagamine and I Iguchi, Abstract A62, IXth Int. Conf. on Atomic Phys. (Seattle, Wa., USA, July 1984 );Google Scholar
  24. Q. Ma, X. Cheng, Z. Liu, Y. Liu and T. Watanabe, ibid, Abstract A63.Google Scholar
  25. 18.
    P.A. Souder, T.W. Crane, V.W. Hughes, D.C. Lu, H. Orth, H.W. Reist, M.H. Yam, G. zu Putlitz, Phys. Rev. A22: 33 (1980).ADSCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Dale R. Harshman
    • 1
  1. 1.A T & T Bell LaboratoriesMurray HillUSA

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