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 journalArticle

33 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 - Jan 1 1987


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Grossman, N., Heller, K., James, C., Shupe, M., Thorne, K., Border, P., Longo, M. J., Beretvas, A., Caracappa, A., Devlin, T., Diehl, H. T., Joshi, U., Krueger, K., Petersen, P. C., Teige, S., & Thomson, G. B. (1987). Measurement of the lifetime of KS0 mesons in the momentum range 100 to 350 GeV/c. Physical review letters, 59(1), 18-21.