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


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
Issue number1
StatePublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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