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CPT Tests in the Neutral Kaon System

B. Schwingenheuer, R. A. Briere, A. R. Barker, E. Cheu, L. K. Gibbons, D. A. Harris, G. Makoff, K. S. McFarland, A. Roodman et al.

E. C. Swallow

G. J. Bock, R. Coleman, M. Crisler, J. Enagonio, R. Ford, Y. B. Hsiung, D. A. Jensen, E. Ramberg, R. Tschirhart et al.

E. M. Collins and G. D. Gollin

P. Gu, P. Haas, W. P. Hogan, S. K. Kim, J. N. Matthews, S. S. Myung, S. Schnetzer, S. V. Somalwar, G. B. Thomson et al.

Y. W. Wah, B. Winstein, and R. Winston

  • The Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637

  • Elmhurst College, Elmhurst, Illinois 60126
  • and The Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637

T. Yamanaka

  • Fermi National Accelerator Laboratory, Batavia, Illinois 60510

  • University of Illinois, Urbana, Illinois 61801

Y. Zou

  • Rutgers University, Piscataway, New Jersey 08855

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Phys. Rev. Lett. 74, 4376 – Published 29 May, 1995

DOI: https://doi.org/10.1103/PhysRevLett.74.4376

Abstract

Fermilab experiment E773 has measured the phases Φ+−=43.53∘±0.97∘ and Φ00−Φ+−=0.62∘±1.03∘ of the CP violating parameters η+− and η00 from interference in the decay of neutral kaons into two charged or neutral pions from a pair of regenerators. New measurements of the KL- KS mass difference and the KS lifetime are also given. These results test CPT symmetry and show no evidence for a violation.

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Comments & Replies

Briere and Winstein Reply:

Roy A. Briere and Bruce Winstein
Phys. Rev. Lett. 75, 4785 (1995)

Comment on “Determining the Phase of a Strong Scattering Amplitude from its Momentum Dependence to Better than 1°”

K. Kleinknecht
Phys. Rev. Lett. 75, 4784 (1995)

References (11)

  1. G. Lüders, W. PauliK. Dan. Vidensk. Selsk. Mat. Fys. Medd. 28, 1 (1954); , in Niels Bohr and the Development of Physics (Pergamon Press, Elmsford, NY,1955).
  2. V. Barmin et al., T. Nakada, in David RubinNucl. Phys. B247, 293 (1984); B254, 747(E) (1984). See also Lepton and Photon Interactions, Persis Drell and , AIP Conf. Proc. No. 302 (AIP, New York, 1994) for an analysis with more recent data.
  3. R. A. Briere and B. Winstein, Phys. Rev. Lett. (to be published).
  4. L. K. Gibbons et al., Phys. Rev. Lett. 70, 1199 (1993) 70, 1203 (1993).
  5. R. A. Briere, B. SchwingenheuerPh.D. thesis, University of Chicago, 1995; , Ph.D. thesis, University of Chicago,1995. See also comprehensive papers by the E731 and E773 Collaborations (to be published).
  6. Particle Data Group, L. Montanet et al., Phys. Rev. D 50, 1173 (1994).
  7. L. K. Gibbons, Ph.D. thesis, University of Chicago,1993.
  8. The 1994 PDG quotation of the E731 Φ+− result has an error in the central value for the Δm dependence. The correct result is Φ+−=42.21∘±0.9∘+189∘ [Δm−0.5257]−460∘ [τS−0.8922].
  9. Note that the PDG averaging of Φ+− ignores the correlated τS and Δm dependences, which are large.
  10. G. Bock et al., Phys. Rev. Lett. 42, 350 (1979).
  11. R. Carosi et al., Phys. Lett. B 237, 303 (1990).

Outline

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Phys. Rev. Lett. 74, 4376– Published 29 May, 1995
  • Received 16 December 1994

© 1995 American Physical Society

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