Precision muon lifetime and capture experiments at PSI

F. E. Gray, K. M. Crowe, B. Lauss, R. M. Carey, W. Earle, A. Gafarov, B. Graf, M. Hance, M. Hare, I. Logashenko, K. R. Lynch, Y. Matus, J. P. Miller, B. L. -Roberts, J. Wasserman, D. Chitwood, S. M. Clayton, P. T. Debevec, D. W. Hertzog, P. KammelB. Kiburg, R. McNabb, F. Mulhauser, C. J.G. Onderwater, C. S. Özben, C. C. Polly, D. Webber, C. W. Arnold, K. Giovanetti, J. Mace, A. W. Werner, W. R. Wiita, S. Cheekatamalla, M. Deka, S. Dhamija, T. Gorringe, Y. Jia, S. Tripathi, T. I. Banks, T. A. Case, S. J. Freedman, J. Paley, A. Sharp, M. Ojha, P. Zolnierzcuk, L. Bonnet, J. Deutsch, J. Govaerts, D. Michotte, R. Prieels, F. J. Hartman, P. U. Dick, A. Dijksman, A. Egger, D. Fahrni, M. Hildebrant, A. Hofer, L. Meier, C. Petitjean, R. Schmidt, V. A. Andreev, B. Besymjannykh, A. A. Fetisov, V. A. Ganzha, V. I. Jatsoura, P. Kravtsov, A. G. Krivsich, E. M. Maev, O. E. Maev, G. E. Petrov, S. Sadetsky, G. N. Schapkin, G. G. Semenchuk, M. Soroka, V. Trofimov, A. Vasiliev, A. A. Vorobyov, M. Vznuzdaev

Research output: Contribution to journalArticlepeer-review

Abstract

The μLan experiment at the Paul Scherrer Institute will measure the lifetime of the positive muon with a precision of 1 ppm, giving a value for the Fermi coupling constant GF at the level of 0.5 ppm. Meanwhile, by measuring the observed lifetime of the negative muon in pure hydrogen, the μCap experiment will determine the rate of muon capture, giving the proton's pseudoscalar coupling gp to 7%. This coupling can be calculated precisely from heavy baryon chiral perturbation theory and therefore permits a test of QCD's chiral symmetry.

Original languageEnglish
Pages (from-to)344-347
Number of pages4
JournalNuclear Physics B - Proceedings Supplements
Volume149
DOIs
StatePublished - Dec 2005

Bibliographical note

Funding Information:
∗This work is supported in part by the U.S. Department of Energy and the National Science Foundation. The author gratefully acknowledges travel funds from the NuFact04 Young Scientist Support Program. †K.M. Crowe, F.E. Gray, and B. Lauss (U. of California, Berkeley and LBNL); R.M. Carey, W. Earle, A. Gafarov, B. Graf, M. Hance, M. Hare, I. Logashenko, K.R. Lynch, Y. Matus, J.P. Miller, B.L. Roberts, and J. Wasserman (Boston U.); D. Chitwood, S.M. Clayton, P.T. De-bevec, D.W. Hertzog, P. Kammel, B. Kiburg, R. McNabb, F. Mulhauser, C.J.G. Onderwater, C.S. Özben, C.C. Polly, and D. Webber (U. of Illinois at Urbana-Champaign); C.W. Arnold, K. Giovanetti, J. Mace, A.W. Werner, and W.R. Wiita (James Madison U.); S. Cheekatamalla, M. Deka, S. Dhamija, T. Gorringe, Y. Jia, and S. Tripathi (U. of Kentucky). ‡T.I. Banks, T.A. Case, K.M. Crowe, S.J. Freedman, F.E. Gray, and B. Lauss (U. of California, Berkeley and LBNL); R.M. Carey and J. Paley (Boston U.); D. Chitwood, S.M. Clayton, P.T. Debevec, D.W. Hert-zog, P. Kammel, B. Kiburg, R. McNabb, F. Mulhauser, C.J.G. Onderwater, C.S. Özben, A. Sharp, and D. Webber (U. of Illinois at Urbana-Champaign); T. Gorringe, M. Ojha, and P. Zolnierzcuk (U. of Kentucky); L. Bonnet, J. Deutsch, J. Govaerts, D. Michotte, and R. Prieels (U. Catholique de Louvain); F.J. Hartmann (Technis-che U. München); P.U. Dick, A. Dijksman, J. Egger, D. Fahrni, M. Hildebrandt, A. Hofer, L. Meier, C. Pe-titjean, and R. Schmidt (Paul Scherrer Inst.); V.A. An-dreev, B. Besymjannykh, A.A. Fetisov, V.A. Ganzha, V.I. Jatsoura, P. Kravtsov, A.G. Krivshich, E.M. Maev, O.E. Maev, G.E. Petrov, S. Sadetsky, G.N. Schapkin, G.G. Semenchuk, M. Soroka, V. Trofimov, A. Vasiliev, A.A. Vorobyov, and M. Vznuzdaev (Petersburg Nuclear Physics Inst.).

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

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