New Limit on T-violating Parameters in Kaon Decays

  • Marat Khabibullin
  • , M. Abe
  • , M. A. Aliev
  • , V. V. Anisimovsky
  • , M. Aoki
  • , I. Arai
  • , Y. Asano
  • , T. Baker
  • , M. Blecher
  • , P. Depommier
  • , M. P. Grigorjev
  • , M. Hasinoff
  • , K. Horie
  • , H. C. Huang
  • , Y. Igarashi
  • , T. Ikeda
  • , J. Imazato
  • , A. P. Ivashkin
  • , A. N. Khotjantsev
  • , Y. G. Kudenko
  • Y. Kuno, L. S. Lee, A. S. Levchenko, 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 journalConference articlepeer-review

Abstract

A search for a T-violating transverse muon polarization (PT ) in K+ ? p0µ+? decay was carried out in the experiment E246 at the KEK-PS. The Standard model (SM) predicts vanishing value of the polarization (< 10-7), so an observation of non-zero PT at the current experimental sensitivity level would be a definite signature of new physics beyond SM. The preliminary result of the analysis of the 1996-1998 data is presented here: PT = (-3.3±3.7(stat)±0.9(syst))×10-3, which corresponds to the T-violation parameter Im(?) = (-0.9 ± 1.2(stat) ± 0.3(syst)) × 10-2. There is no evidence for T-violation in Kµ3 at the current level of sensitivity.

Original languageEnglish (US)
JournalProceedings of Science
Volume7
StatePublished - 2001
Event2001 International Europhysics Conference on High Energy Physics, HEP 2001 - Budapest, Hungary
Duration: Jul 12 2001Jul 18 2001

All Science Journal Classification (ASJC) codes

  • General

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