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Observation of the decay K+ → π+ μ+ μ

  • S. Adler
  • , M. S. Atiya
  • , I. H. Chiang
  • , J. S. Frank
  • , J. S. Haggerty
  • , T. F. Kycia
  • , K. K. Li
  • , L. S. Littenberg
  • , A. Sambamurti
  • , A. Stevens
  • , R. C. Strand
  • , C. Witzig
  • , W. C. Louis
  • , M. Ardebili
  • , M. Convery
  • , M. M. Ito
  • , D. R. Marlow
  • , R. Mc Pherson
  • , P. D. Meyers
  • , M. A. Selen
  • F. C. Selen, A. J.S. Smith, E. W. Blackmore, D. A. Bryman, L. Felawka, A. Konaka, Y. Kuno, J. A. Macdonald, T. Numao, P. Padley, J. M. Poutissou, R. Poutissou, J. Roy, A. S. Turcot, P. Kitching, T. Nakano, M. Rozon, R. Soluk

Research output: Contribution to journalArticlepeer-review

Abstract

We have observed the rare decay K+ → π+ μ+ μ- and measured the branching ratio γ(K+ → π+ μ+ μ-)/γ(K+ → all) = [5.0 ± 0.4(stat) ± 0.7(syst) ± 0.6(th)] × 10-8. We compare this result with predictions from chiral perturbation theory and estimates based on the decay K+ → π+ e+ e-. 1997

Original languageEnglish (US)
Pages (from-to)4756-4759
Number of pages4
JournalPhysical review letters
Volume79
Issue number24
DOIs
StatePublished - Jan 1 1997

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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