Precise measurements of direct CP violation, CPT symmetry, and other parameters in the neutral kaon system
- ABOUZAID, E.
- ARENTON, M.
- BARKER, A. R.
- BARRIO, M.
- BELLANTONI, L.
- BLUCHER, E.
- BOCK, G. J.
- BOWN, C.
- CHEU, E.
- COLEMAN, R.
- CORCORAN, M. D.
- COX, B.
- ERWIN, A. R.
- ESCOBAR, C. O.
- GLAZOV, A.
- GOLOSSANOV, A.
- GOMES, R. A.
- Gouffon, Philippe
- GRAHAM, J.
- HAMM, J.
- HSIUNG, Y. B.
- JENSEN, D. A.
- KESSLER, R.
- KOTERA, K.
- LADUE, J.
- LEDOVSKOY, A.
- MCBRIDE, P. L.
- MONNIER, E.
- NGUYEN, H.
- NICLASEN, R.
- II, D. G. Phillips
- PRASAD, V.
- QI, X. R.
- RAMBERG, E. J.
- RAY, R. E.
- RONQUEST, M.
- ROODMAN, A.
- Paes, Eliel dos Santos
- SHANAHAN, P.
- SHAWHAN, P. S.
- SLATER, W.
- SMITH, D.
- SOLOMEY, N.
- SWALLOW, E. C.
- TAEGAR, S. A.
- TOALE, P. A.
- TSCHIRHART, R.
- WAH, Y. W.
- WANG, J.
- WHITE, H. B.
- WHITMORE, J.
- WILKING, M. J.
- WINSTEIN, B.
- WINSTON, R.
- WORCESTER, E. T.
- YAMANAKA, T.
- ZIMMERMAN, E. D.
- Funchal, Renata Zukanovich
DOIAbstract
We present precise tests of CP and CPT symmetry based on the full data set of K -> pi pi decays collected by the KTeV experiment at Fermi National Accelerator Laboratory during 1996, 1997, and 1999. This data set contains 16 x 10(6) K -> pi(0)pi(0) and 69 x 10(6) K -> pi(+)pi(-) decays. We measure the direct CP violation parameter Re(epsilon'/epsilon) = (19.2 +/- 2.1) x 10(-4). We find the K(L) -> K(S) mass difference Delta m = (5270 +/- 12) x 10(6) (h) over tilde s(-1) and the K(S) lifetime tau(S) = (89.62 +/- 0.05) x 10(-12) s. We also measure several parameters that test CPT invariance. We find the difference between the phase of the indirect CP violation parameter epsilon and the superweak phase: phi(epsilon) - phi(SW) =(0.40 +/- 0.56)d...
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