UPPER LIMIT FOR THE BRANCHING RATIO OF K-S-]E(-) DECAY()E()

Authors
ADLER R ALHALEL T 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 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., UPPER LIMIT FOR THE BRANCHING RATIO OF K-S-]E(-) DECAY()E(), Nuclear physics. B, 1997, pp. 178-182
Citations number
4
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. B → ACNP
ISSN journal
05503213
Year of publication
1997
Supplement
56A
Pages
178 - 182
Database
ISI
SICI code
0550-3213(1997):<178:ULFTBR>2.0.ZU;2-X
Abstract
A measurement of the branching ratio for K-s --> e(+)e(-) decay was pe rformed with the CPLEAR detector at LEAR. Full event reconstruction to gether with calorimeter e/pi separation allowed for powerful backgroun d rejection and high signal acceptance. Analysis of data taken up to 1 994 yields the result: Br(K-s --> e(+)e(-)) < 4.2.10(-7) (90% CL).