Measurement of the lifetime of KS0 mesons in the momentum range 100 to 350 GeV/c

  • N. Grossman
  • , K. Heller
  • , C. James
  • , M. Shupe
  • , K. Thorne
  • , P. Border
  • , M. J. Longo
  • , A. Beretvas
  • , A. Caracappa
  • , T. Devlin
  • , H. T. Diehl
  • , U. Joshi
  • , K. Krueger
  • , P. C. Petersen
  • , S. Teige
  • , G. B. Thomson

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

In an experiment at Fermilab we have measured the lifetime of KS0 mesons produced by 800-GeV/c protons on tungsten. KS0+- decays from 100 to 350 GeV/c, between 9.3 and 25.3 m from production, were selected for the measurement. The result was (0.8920 0.0044)×10-10 sec, in excellent agreement with measurements performed for 25-GeV/c KS0. The lifetime was also calculated for seven momentum bins. The results were completely consistent with Lorentz invariance. No evidence was found for the mometnum dependence suggested by the intermediate-range fifth-force hypothesis.

Original languageEnglish (US)
Pages (from-to)18-21
Number of pages4
JournalPhysical review letters
Volume59
Issue number1
DOIs
StatePublished - 1987

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