OBSERVATION OF THE CP-CONSERVING K-S-]PI(-)PI(0) DECAY AMPLITUDE()PI()

Authors
ADLER R ALHALEL T ANGELOPOULOS A APOSTOLAKIS A ASLANIDES E BACKENSTOSS G BEE CP BEHNKE O BENELLI A BENNET J BERTIN V BIENLEIN JK BLANC F BLOCH P BULA C CARLSON P CARROLL M CARVALHO J CAWLEY E CHARALAMBOUS S CHARDALAS M CHARDIN G CHERTOK MB CODY A DANIELSSON M DEDOUSSIS DP DEJARDIN M DERRE J DODGSON M 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 GARNET R GARRETA D GERALIS T GERBER HJ GO A GUMPLINGER P GUYOT C HARRISON PF HASELDEN A HAYMAN PJ HENRYCOUANNIER F HEYES WG HOLLANDER RW HUBERT E JANSSON K JOHNER HU JONAND K KETTLE PR KOCHOWSKI C KOKKAS P KREUGER R LAWRY T LEGAC R LEIMGRUBER E LIOLIOS A MACHADO E MALEY P MANDIC I MANTHOS N MAREL G MIKUZ M MILLER J MONTANET F NAKADA T ONOFRE A PAGELS B PAPADOPOULOS I PAVLOPOULOS P PELUCCHI F DACUNHA JP POLICARPO A POLIVKA G POSTMA H RICKENBACH R ROBERTS BL ROZAKI E RUF T SACKS L SAKELIOU L SANDERS P SANTONI C SARIGIANNIS K SCHAFER M SCHALLER LA SCHIETINGER T SCHOPPER A SCHUNE P SOARES A TAUSCHER L THIBAULT C TOUCHARD E TOURAMANIS C TRIANTIS F TROSTER DA VANBEVEREN E VANEIJK CWE VARNER G VLACHOS S WEBER P WIGGER O WITZIG C WOLTER M YECHE C ZAVRTANIK D ZIMMERMAN D
Citation
R. Adler et al., OBSERVATION OF THE CP-CONSERVING K-S-]PI(-)PI(0) DECAY AMPLITUDE()PI(), Physics letters. Section B, 374(4), 1996, pp. 313-318
Citations number
13
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
374
Issue
4
Year of publication
1996
Pages
313 - 318
Database
ISI
SICI code
0370-2693(1996)374:4<313:OOTCKD>2.0.ZU;2-W
Abstract
The interference between CP-conserving K-S and K-L --> pi(+)pi(-)pi(0) decay amplitudes was observed by studying the decay rate asymmetries between initial K-0 and (K) over bar(0) separately for the phase space regions E(CM)(pi(+)) > E(CM)(pi(-)) and E(CM)(pi(+)) < E(CM)(pi(-)) F or the parameter lambda we found Re(lambda) = 0.036 +/- 0.010(stat.)(- 0.003)(+0.002)(syst.) and Im(lambda) consistent with zero, leading to a branching ratio B = [4.1(-1.9)(+2.5)(stat.)(-0.6)(+0.5)(syst.)] x 10 (-7) for the CP-conserving K-S --> pi(+)pi(-)pi(0) decay.