New measurements of the neutral kaon parameters Δm, τs, Φ00-Φ+-, and Φ+-

L. K. Gibbons, A. R. Barker, R. A. Briere, G. Makoff, V. Papadimitriou, J. R. Patterson, B. Schwingenheuer, S. V. Somalwar, Y. W. Wah, B. Winstein, R. Winston, M. Woods, H. Yamamoto, E. C. Swallow, G. J. Bock, R. Coleman, J. Enagonio, Y. B. Hsiung, E. Ramberg, K. StanfieldR. Tschirhart, T. Yamanaka, G. D. Gollin, M. Karlsson, J. K. Okamitsu, P. Debu, B. Peyaud, R. Turlay, B. Vallage

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The full E731 data set is used to provide precise determinations of several parameters of the neutral kaon. We find the KS lifetime τS=(0. 8929±0.0016)×10-10 s, the KL-KS mass difference Δm=(0.5286±0.0028)×1010Latin small letter h with stroke s-1 the phase of η+-, Φ+-=42.4°±1.4°, and the phase difference between Φ00 and Φ+-, ΔΦ=-1.6°±1.2°. Comparisons with previous experiments and with CPT symmetry are given.

Original languageEnglish
Pages (from-to)1199-1202
Number of pages4
JournalPhysical review letters
Issue number9
Publication statusPublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'New measurements of the neutral kaon parameters Δm, τs, Φ00-Φ+-, and Φ+-'. Together they form a unique fingerprint.

Cite this