FIRST OBSERVATION OF THE DECAY TAU(-)-]K-ETA-NU(TAU)

Authors
BARTELT J CSORNA SE JAIN V MARKA S FREYBERGER A GIBAUT D KINOSHITA K POMIANOWSKI P SCHRENK S CINABRO D BARISH B CHADHA M CHAN S EIGEN G MILLER JS OGRADY C SCHMIDTLER M URHEIM J WEINSTEIN AJ WURTHWEIN F ASNER DM ATHANAS M BLISS DW BROWER WS MASEK G PAAR HP GRONBERG J KORTE CM KUTSCHKE R MENARY S MORRISON RJ NAKANISHI S NELSON HN NELSON TK QIAO C RICHMAN JD ROBERTS D RYD A TAJIMA H WITHERELL MS BALEST R CHO K FORD WT LOHNER M PARK H RANKIN P ROY J SMITH JG ALEXANDER JP BEBEK C BERGER BE BERKELMAN K BLOOM K CASSEL DG CHO HA COFFMAN DM CROWCROFT DS DICKSON M DRELL PS DUMAS DJ EHRLICH R ELIA R GAIDAREV P GALIK RS GITTELMAN B GRAY SW HARTILL DL HELTSLEY BK JONES CD JONES SL KANDASWAMY J KATAYAMA N KIM PC KREINICK DL LEE T LIU Y LUDWIG GS MASUI J MEVISSEN J MISTRY NB NG CR NORDBERG E PATTERSON JR PETERSON D RILEY D SOFFER A WARD C AVERY P PRESCOTT C YANG S YELTON J BRANDENBURG G BRIERE RA LIU T SAULNIER M WILSON R YAMAMOTO H BROWDER TE LI F RODRIGUEZ JL BERGFELD T EISENSTEIN BI ERNST J GLADDING GE GOLLIN GD PALMER M SELEN M THALER JJ EDWARDS KW MCLEAN KW OGG M BELLERIVE A BRITTON DI JANICEK R MACFARLANE DB PATEL PM SPAAN B SADOFF AJ AMMAR R BARINGER P BEAN A BESSON D COPPAGE D COPTY N DAVIS R HANCOCK N KOTOV S KRAVCHENKO I KWAK N ANDERSON S KUBOTA Y LATTERY M NELSON JK PATTON S POLING R RIEHLE T SAVINOV V ALAM MS KIM IJ LING Z MAHMOOD AH ONEILL JJ SEVERINI H SUN CR TIMM S WAPPLER F DUBOSCQ JE FULTON R FUJINO D GAN KK HONSCHEID K KAGAN H KASS R LEE J SUNG M UNDRUS A WHITE C WANKE R WOLF A ZOELLER MM FU X NEMATI B RICHICHI SJ ROSS WR SKUBIC P WOOD M BISHAI M FAST J GERNDT E HINSON JW MIAO T MILLER DH MODESITT M SHIBATA EI SHIPSEY IPJ WANG PN YURKO M GIBBONS L JOHNSON SD KWON Y ROBERTS S THORNDIKE EH JESSOP CP LINGEL K MARSISKE H PERL ML SCHAFFNER SF WANG R COAN TE DOMINICK J FADEYEV V KOROLKOV I LAMBRECHT M SANGHERA S SHELKOV V STROYNOWSKI R VOLOBOUEV I WEI G ARTUSO M EFIMOV A GAO M GOLDBERG M GREENE R HE D HORWITZ N KOPP S MONETI GC MOUNTAIN R MUKHIN Y PLAYFER S SKWARNICKI T STONE S XING X
Citation
J. Bartelt et al., FIRST OBSERVATION OF THE DECAY TAU(-)-]K-ETA-NU(TAU), Physical review letters, 76(22), 1996, pp. 4119-4123
Citations number
14
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
76
Issue
22
Year of publication
1996
Pages
4119 - 4123
Database
ISI
SICI code
0031-9007(1996)76:22<4119:FOOTDT>2.0.ZU;2-H
Abstract
The decay tau(-) --> K- eta nu(tau), has been observed with the CLEO I I detector. The eta meson is reconstructed using two decay channels, e ta --> gamma gamma and pi(+)pi(-)pi(0). The measured branching fractio n is B(tau(-) --> K- eta nu(tau)) = (2.6 +/- 0.5 +/- 0.4) x 10(-4), so mewhat higher than theoretical estimates. An improved upper limit for the second-class-current decay tau(-) --> pi(-) eta nu(tau) is set, B( tau(-) --> pi(-) eta nu(tau)) < 1.4 x 10(-4) at 95% C.L., consistent w ith theoretical expectations.