MEASUREMENT OF THE CP VIOLATION PARAMETER ETA(-) USING TAGGED K-0 AND(K)OVER-BAR(0)()

Citation
R. Adler et al., MEASUREMENT OF THE CP VIOLATION PARAMETER ETA(-) USING TAGGED K-0 AND(K)OVER-BAR(0)(), Physics letters. Section B, 363(4), 1995, pp. 243-248
Citations number
26
Categorie Soggetti
Physics
Journal title
ISSN journal
03702693
Volume
363
Issue
4
Year of publication
1995
Pages
243 - 248
Database
ISI
SICI code
0370-2693(1995)363:4<243:MOTCVP>2.0.ZU;2-L
Abstract
The CP violation parameter eta(+-) is determined through the eigentime -dependent asymmetry in the rates of initially tagged K-0 and (K-0) ov er bar decaying to pi(+)pi(-). The obtained values are \eta(+-)\ = (2. 312 +/- 0.043(stat.) +/- 0.030(syst.) +/- 0.011(tau S)) x 10(-3) and p hi(+-) = 42.7 degrees +/- 0.9(stat.)degrees +/- 0.6(syst.)degrees +/- 0.9(Delta m)degrees with Delta m = (527.4 +/- 2.9) x 10(7) (h) over ba r s(-1) measured in the same experiment using the semileptonic decay c hannel.