Test of exotic scalar and tensor interactions in Ke3 decay using stopped positive kaons

  • A. S. Levchenko
  • , A. N. Khotjantsev
  • , A. P. Ivashkin
  • , M. Abe
  • , M. A. Aliev
  • , V. V. Anisimovsky
  • , M. Aoki
  • , I. Arai
  • , Y. Asano
  • , T. Baker
  • , M. Blecher
  • , P. Depommier
  • , M. Hasinoff
  • , K. Horie
  • , H. C. Huang
  • , Y. Igarashi
  • , T. Ikeda
  • , J. Imazato
  • , M. M. Khabibullin
  • , Yu G. Kudenko
  • Y. Kuno, L. S. Lee, G. Y. Lim, J. A. Macdonald, D. R. Marlow, C. R. Mindas, O. V. Mineev, C. Rangacharyulu, S. Shimizu, Y. M. Shin, A. Suzuki, A. Watanabe, N. V. Yershov, T. Yokoi

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The form factors of the decay K+ → π+e+νe (Ke3) have been determined from the comparison of the experimental and Monte Carlo Dalitz distributions containing about 105 Ke3 events. The following values of the parameters were obtained: λ+ = 0.0278 ± 0.0017 (stat.) ± 0.0015 (syst.), |fS/f+(0)| = 0.0040 ± 0.0160 (stat.) ± 0.0067 (syst.), and |fT/f+(0)| = 0.019 ± 0.080 (stat.), ± 0.038 (syst.). Both scalar fS and tensor fT form factors are consistent with the Standard Model predictions of zero values.

Original languageEnglish (US)
Pages (from-to)2232-2237
Number of pages6
JournalPhysics of Atomic Nuclei
Volume65
Issue number12
DOIs
StatePublished - Dec 2002

All Science Journal Classification (ASJC) codes

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

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