RECENT RESULTS ON CP VIOLATION FROM THE CPLEAR EXPERIMENT

Authors
ADLER R ALHALEL T ANGELOPOULOS A APOSTOLAKIS A ASLANIDES E BACKENSTOSS G BIENLEIN JK BEE CP BENNET J BERTIN V BLOCH P BULA C BURGUN G CARLSON P CARVALLHO J CAWLEY E CHARDALAS M CHARALAMBOUS S DANIELSSON M DEDOUSSIS S DEJARDIN M DERRE J DODGSON M DOUSSE JC DUCLOS J EALET A ECKART B ELEFTHERIADIS C EVANGELOU I FARAVEL L FASSNACHT P FAURE JL FELDER C FERREIRAMARQUES R FETSCHER W FIDECARO M FILIPCIC A FRANCIS D FRY J FUGLESANG C GABATHULER E GAMET R GARRETA D GERALIS T GERBER HJ GO A GUMPLINGER P GUYOT C HARRISON PF HAYMAN PJ HEYES WG HOLLANDER RW JOHNER HU JONAND K JANSSON K KEREK A KERN J KETTLE PR KOCHOWSKI C KOKKAS P KREUGER R LAWRY T LEGAC R LIOLIOS A MACHADO E MALEY P MANDIC I MANTHOS N MAREL G MIKUZ M MILLER J MONTANET F NAKADA T ONOFRE A PAGELS B PAVLOPOULOS P PELUCCHI F DACUNHA JP POLICARPO A POLIVKA G POSTMA H RICKENBACH R ROBERTS RL ROZAKI E RUF T SACKS L SAKELIOU L SANDERS P SANTONI C SARIGANNIS K SCHAFER M SCHALLER L SCHOPPER A SCHUNE P SZILAGYI S TAUSCHER L THIBAULT C TOUCHARD F TOURAMANIS C TRIANTIS F TROESTER DA VANDENPUTTE M VANEIJK CWE VARNER G VLACHOS S WEBER P WIGGER O WITZIG C WOLTERS M YECHE C ZAVTRANIK D ZIMMERMAN D
Citation
R. Adler et al., RECENT RESULTS ON CP VIOLATION FROM THE CPLEAR EXPERIMENT, Nuclear physics. B, 31, 1993, pp. 196-199
Citations number
8
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. B → ACNP
ISSN journal
05503213
Volume
31
Year of publication
1993
Supplement
S
Pages
196 - 199
Database
ISI
SICI code
0550-3213(1993)31:<196:RROCVF>2.0.ZU;2-X
Abstract
The CPLEAR experiment is aiming at precise CP violation tests using in itially pure K0- and K0BAR beams from the intense source provided by t he annihilation of the LEAR pBAR-beam in hydrogen. The strangeness tag ging efficiency and the systematic errors have been studied and found to be in agreement with the design specifications. The measurement of the differential time asymmetry of the pi+pi- decays allowed the direc t observation of differences in the decay rates of particles and antip articles.The CP violating parameters were determined as \eta+/-\ = (2. 32 +/- 0.14) . 10(-3) and phi+/- = 42.3-degrees +/- 4.4-degrees. First results in the reconstruction and analysis of the neutral kaon decays into two neutral pions and the K(e)3 decay are presented.