Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Measurements of relativistic time dilatation for positive and negative muons in a circular orbit

Abstract

The lifetimes of both positive and negative relativistic (γ = 29.33) muons have been measured in the CERN Muon Storage Ring with the results τ+ = 64.419 (58) µs, τ = 64.368 (29) µs The value for positive muons is in accordance with special relativity and the measured lifetime at rest: the Einstein time dilation factor agrees with experiment with a fractional error of 2×10−3 at 95% confidence. Assuming special relativity, the mean proper lifetime for μ is found to be τ0 = 2.1948(10) µs the most accurate value reported to date. The agreement of this value with previously measured values of τ0+ confirms CPT invariance for the weak interaction in muon decay.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    Bailey, J. et al. Nuovo Cimento 9 A, 369 (1972).

    ADS  CAS  Article  Google Scholar 

  2. 2

    Einstein, A. Ann. Phys. (Germany) 17, 891 (1905).

    ADS  Article  Google Scholar 

  3. 3

    Meyer, S. L. et al. Phys. Rev. 132, 2693 (1963).

    ADS  CAS  Article  Google Scholar 

  4. 4

    Bailey, J. et al. Phys. Lett. 55 B, 420 (1975).

    Article  Google Scholar 

  5. 5

    Combley, F. & Picasso, E. Phys. Rep. 14 C, 1 (1974).

    ADS  CAS  Article  Google Scholar 

  6. 6

    Farley, F. J. M. Contemp. Phys. 16, 413 (1975).

    ADS  CAS  Article  Google Scholar 

  7. 7

    Field, J. H. Proc. EPS Internat. Conf. High-Energy Phys. Palermo, 1975, p. 247 (Editrice Compositori, Bologna, 1976).

    Google Scholar 

  8. 8

    Combley, F. H. Proc. 7th Int. Symp. Lepton Photon Interactions at High Energies, Stanford, 1975 (ed. Kirk, W. T.) p. 913 (SLAC, Stanford, 1975).

    Google Scholar 

  9. 9

    Bailey, J. et al. Phys. Lett. 68 B, 191 (1977).

    Article  Google Scholar 

  10. 10

    Flegel, W. & Krienen, F. Nuclear Instrum. Meth. 13, 549 (1973).

    ADS  Article  Google Scholar 

  11. 11

    Pizer, H. I. Nuclear Instrum. Meth 123, 461 (1975).

    ADS  Article  Google Scholar 

  12. 12

    Pizer, H. I., van Köningsveld, L. & Verweij, H. CERN 76–17 (1976).

  13. 13

    Field, J. H., Lange, F. & von Rüden, W. Nuclear Instrum. Meth. 143, 227 (1977).

    ADS  Article  Google Scholar 

  14. 14

    Farley, F. J. M. & Carter, B. S. Nuclear Instrum. Meth. 28, 279 (1964).

    ADS  Article  Google Scholar 

  15. 15

    Borer, K. Nuclear Instrum. Meth. 143, 203 (1977).

    ADS  CAS  Article  Google Scholar 

  16. 16

    Borer, K. & Lange, F. Nuclear Instrum. Meth. 143, 219 (1977).

    ADS  CAS  Article  Google Scholar 

  17. 17

    Crowe, K. M. Phys. Rev. D 5, 2145 (1972).

    CAS  Article  Google Scholar 

  18. 18

    Balandin, M. P., Crebenyuk, V. M., Zinov, V. G., Konin, A. D. & Ponomarev, A. N. Soviet Phys. JETP 40, 811 (1974).

    ADS  Google Scholar 

  19. 19

    Nordberg, M. E., Lobkowicz, F. & Burman, R. L. Phys. Lett. 24 B, 594 (1967).

    CAS  Article  Google Scholar 

  20. 20

    Ayres, D. S. et al. Phys. Rev. D 3, 105 (1971).

    Google Scholar 

  21. 21

    Dunaitsev, A. F., Prokoshkin, Y. D., Razuvaev, E. A., Sergeev, V. A. & Simonov, Y. N. Soviet J. Nuclear Phys. 16, 292 (1973).

    Google Scholar 

  22. 22

    Ayres, D. S. et al. Phys. Rev. 157, 1288 (1967).

    ADS  CAS  Article  Google Scholar 

  23. 23

    Ott, R. J. & Pritchard, T. W. Phys. Rev. D 3, 52 (1971).

    ADS  Google Scholar 

  24. 24

    Lobkowicz, F., Melissinos, A. C., Nagashima, Y. & Tewksbury, S. Phys. Rev 185, 1676 (1969).

    ADS  CAS  Article  Google Scholar 

  25. 25

    Skjeggestad, O. et al. Nuclear Phys. 48 B, 343 (1972).

    ADS  CAS  Article  Google Scholar 

  26. 26

    Geweniger, C. et al. Phys. Lett. 48 B, 487 (1974).

    CAS  Article  Google Scholar 

  27. 27

    Carithers, W. C. et al. Phys. Rev. Lett. 34, 1244 (1975).

    ADS  CAS  Article  Google Scholar 

  28. 28

    Hay, H. J., Schiffer, J. P., Cranshaw, T. E. & Egelstaff, P. A. Phys. Rev. Lett. 4, 165 (1960).

    ADS  CAS  Article  Google Scholar 

  29. 29

    Hafele, J. C. & Keating, R. E. Science 177, 166 (1972).

    ADS  CAS  Article  Google Scholar 

  30. 30

    Pound, R. V. & Rebka, G. A., Phys. Rev. Lett. 4, 274 (1960).

    ADS  CAS  Article  Google Scholar 

  31. 31

    Vessot, R. F. C. & Levine, M. W. Metrologia 6, 116 (1970).

    ADS  Article  Google Scholar 

  32. 32

    Sherwin, C. W. Phys. Rev. 120, 17 (1960).

    ADS  MathSciNet  Article  Google Scholar 

  33. 33

    Romain, J. E. Rev. mod. Phys. 35, 376 (1963).

    ADS  Article  Google Scholar 

  34. 34

    Bailey, J. & Picasso, E. Prog. Nuclear Phys. 12, 43 (1970).

    CAS  Google Scholar 

  35. 35

    Ageno, M. & Amaldi, E. Academie Nazionali dei Lincei, Serie VIII, VIII, Fascicolo I (1966).

    Google Scholar 

  36. 36

    Blokhintsev, D. I. Phys. Lett. 12, 272 (1964).

    ADS  Article  Google Scholar 

  37. 37

    Rédei, L. B. Phys. Rev. 145, 999 (1967).

    ADS  Article  Google Scholar 

  38. 38

    Rédei, L. B. Phys. Rev. 162, 1299 (1967).

    ADS  Article  Google Scholar 

  39. 39

    Lüders, G. & Zumino, B. Phys. Rev. 106, 345 (1957).

    ADS  MathSciNet  Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Bailey, J., Borer, K., Combley, F. et al. Measurements of relativistic time dilatation for positive and negative muons in a circular orbit. Nature 268, 301–305 (1977). https://doi.org/10.1038/268301a0

Download citation

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing