CPLEAR RESULTS ON THE CP PARAMETERS OF NEUTRAL KAONS DECAYING TO PI(-)PI(0)()PI()

Authors
ADLER R ANGELOPOULOS A APOSTOLAKIS A ASLANIDES E BACKENSTOSS G BARGASSA P BEE CP BEHNKE O BENELLI A BERTIN V BLANC F BLOCH P CARLSON P CARROLL M CARVALHO J CAWLEY E CHARALAMBOUS S CHARDIN G CHERTOK MB CODY A DANIELSSON M DEJARDIN M DERRE J EALET A ECKART B ELEFTHERIADIS C EVANGELOU I FARAVEL L FASSNACHT P FELDER C FERREIRAMARQUES R FETSCHER W FIDECARO M FILIPCIC A FRANCIS D FRY J GABATHULER E GAMET R GARRETA D GERBER HJ GO A GUYOT C HASELDEN A HAYMAN PJ HENRYCOUANNIER F HOLLANDER RW HUBERT E JONAND K KETTLE PR KOCHOWSKI C KOKKAS P KREUGER R LEGAC R LEIMGRUBER F LIOLIOS A MACHADO E MANDIC I MANTHOS N MAREL G MIKUZ M MILLER J MONTANET F MULLER A NAKADA T PAGELS B PAPADOPOULOS I PAVLOPOULOS P DACUNHA JP POLICARPO A POLIVKA G RICKENBACH R ROBERTS BL RUF T SAKELIOU L SANDERS P SANTONI C SCHAFER M SCHALLER LA SCHIETINGER T SCHOPPER A SCHUNE P SOARES A TAUSCHER L THIBAULT C TOUCHARD F TOURAMANIS C TRIANTIS F VANBEVEREN E VANEIJK CWE VLACHOS S WEBER P WIGGER O WOLTER M YECHE C ZAVRTANIK D ZIMMERMAN D
Citation
R. Adler et al., CPLEAR RESULTS ON THE CP PARAMETERS OF NEUTRAL KAONS DECAYING TO PI(-)PI(0)()PI(), Physics letters. Section B, 407(2), 1997, pp. 193-200
Citations number
16
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
407
Issue
2
Year of publication
1997
Pages
193 - 200
Database
ISI
SICI code
0370-2693(1997)407:2<193:CROTCP>2.0.ZU;2-V
Abstract
The CPLEAR experiment measured time-dependent decay-rate asymmetries o f K-0 and (K) over bar(0) decaying to pi(+)pi(-)pi(0) in order to stud y the interference between the decay amplitudes of K-S(0) - either CP- violating or CP-conserving - and the CP-conserving K-L(0) decay amplit ude. From the analysis of the complete data set we find for the CP-vio lating parameter eta(+-0), Re((+-0)) = (-2 +/- 7 stat. (+4)(-1) syst.) x 10(-3), Im(eta(+-0)) = (-2 +/- 9 stat. (+2)(-1) syst.) x 10(-3) and for the CP-conserving parameter lambda, Re(lambda) = (+28 +/- 7 stat. +/-3 syst.) x 10(-3), Im(lambda) = (-10 +/- 8 stat. +/- 2 syst.) x 10 (-3). From the latter, the branching ratio of the CP-conserving (KS)-S -0 --> pi(+)pi(-)pi(0) decay is deduced to be B = (2.5(-1.0)(+1.3) sta t. (+0.5)(-0.6) systs.) x 10(-7). (C) 1997 Elsevier Science B.V.