STUDY OF THE 5-CHARGED-PION DECAY OF THE TAU-LEPTON

Authors
GIBAUT D KINOSHITA K BARISH B CHADHA M CHAN S COWEN DF EIGEN G MILLER JS OGRADY C URHEIM J WEINSTEIN AJ ACOSTA D ATHANAS M MASEK G PAAR HP GRONBERG J KUTSCHKE R MENARY S MORRISON RJ NAKANISHI S NELSON HN NELSON TK QIAO C RICHMAN JD RYD A TAJIMA H SPERKA D WITHERELL MS PROCARIO M BALEST R CHO K DAOUDI M FORD WT JOHNSON DR LINGEL K LOHNER M RANKIN P SMITH JG ALEXANDER JP BEBEK C BERKELMAN K BLOOM K BROWDER TE CASSEL DG CHO HA COFFMAN DM CROWCROFT DS DRELL PS EHRLICH R GAIDAREV P GALIK RS GARCIASCIVERES M GEISER B GITTELMAN B GRAY SW HARTILL DL HELTSLEY BK JONES CD JONES SL KANDASWAMY J KATAYAMA N KIM PC KREINICK DL LUDWIG GS MASUI J MEVISSEN J MISTRY NB NG CR NORDBERG E PATTERSON JR PETERSON D RILEY D SALMAN S SAPPER M WURTHWEIN F AVERY P FREYBERGER A RODRIGUEZ J STEPHENS R YANG S YELTON J CINABRO D HENDERSON S LIU T SAULNIER M WILSON R YAMAMOTO H BERGFELD T EISENSTEIN BI GOLLIN G ONG B PALMER M SELEN M THALER JJ EDWARDS KW OGG M BELLERIVE A BRITTON DI HYATT ERF MACFARLANE DB PATEL PM SPAAN B SADOFF AJ AMMAR R BALL S BARINGER P BEAN A BESSON D COPPAGE D COPTY N DAVIS R HANCOCK N KELLY M KOTOV S KRAVCHENKO I KWAK N LAM H KUBOTA Y LATTERY M MOMAYEZI M NELSON JK PATTON S PERTICONE D POLING R SAVINOV V SCHRENK S WANG R ALAM MS KIM IJ NEMATI B ONEILL JJ SEVERINI H SUN CR ZOELLER MM CRAWFORD G DAUBENMIER CM FULTON R FUJINO D GAN KK HONSCHEID K KAGAN H KASS R LEE J MALCHOW R SKOVPEN Y SUNG M WHITE C BUTLER F FU X KALBFLEISCH G ROSS WR SKUBIC P WOOD M FAST J MCILWAIN RL MIAO T MILLER DH MODESITT M PAYNE D SHIBATA EI SHIPSEY IPJ WANG PN BATTLE M ERNST J GIBBONS L KWON Y ROBERTS S THORNDIKE EH WANG CH DOMINICK J LAMBRECHT M SANGHERA S SHELKOV V SKWARNICKI T STROYNOWSKI R VOLOBOUEV I WEI G ZADOROZHNY P ARTUSO M GOLDBERG M HE D HORWITZ N KENNETT R MOUNTAIN R MONETI GC MUHEIM F MUKHIN Y PLAYFER S ROZEN Y STONE S THULASIDAS M VASSEUR G XING X ZHU G BARTELT J CSORNA SE EGYED Z JAIN V
Citation
D. Gibaut et al., STUDY OF THE 5-CHARGED-PION DECAY OF THE TAU-LEPTON, Physical review letters, 73(7), 1994, pp. 934-938
Citations number
15
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
73
Issue
7
Year of publication
1994
Pages
934 - 938
Database
ISI
SICI code
0031-9007(1994)73:7<934:SOT5DO>2.0.ZU;2-R
Abstract
The branching fractions for the five-charged-particle decays of the ta u lepton have been measured in e+e- annihilations using the CLEO II de tector at the Cornell Electron Storage Ring. Assuming all charged part icles to be pions, the results are B(3pi-2pi+ greater-than-or-equal-to 0 neutrals nu(tau)) = (0.097 +/- 0.005 +/- 0.011)%, B(3pi-2pi+nu(tau) ) = (0.077 +/- 0.005 +/- 0.009)%, B(3pi-2pi+pi0nu(tau)) = (0.019 +/- 0 .004 +/- 0.004)%, and B(3pi-2pi+2pi0nu(tau)) < 0.011% at the 90% C.L. B(3pi-2pi+pi0nu(tau)) is measured for the first time by exclusive pi0 reconstruction. The results are compared with the predictions from the partially conserved-axial-current and conserved-vector-current hypoth eses assuming isospin invariance.