NEW UPPER LIMIT ON THE DECAY ETA-]E(+)E(-)

Authors
BROWDER TE LI F LI Y RODRIGUEZ JL BERGFELD T EISENSTEIN BI ERNST J GLADDING GE GOLLIN GD HANS RM JOHNSON E KARLINER I MARSH MA PALMER M SELEN M THALER JJ EDWARDS KW BELLERIVE A JANICEK R MACFARLANE DB MCLEAN KW PATEL PM SADOFF AJ AMMAR R BARINGER P BEAN A BESSON D COPPAGE D DARLING C DAVIS R HANCOCK N KOTOV S KRAVCHENKO I KWAK N ANDERSON S KUBOTA Y LATTERY M LEE SJ ONEILL JJ PATTON S POLING R RIEHLE T SAVINOV V SMITH A ALAM MS ATHAR SB LING Z MAHMOOD AH SEVERINI H TIMM S WAPPLER F ANASTASSOV A BLINOV S DUBOSCQ JE FISHER KD FUJINO D GAN KK HART T HONSCHEID K KAGAN H KASS R LEE J SPENCER MB SUNG M UNDRUS A WANKE R WOLF A ZOELLER MM NEMATI B RICHICHI SJ ROSS WR SKUBIC P BISHAI M FAST J GERNDT E HINSON JW MENON N MILLER DH SHIBATA EI SHIPSEY IPJ YURKO M GIBBONS L GLENN S JOHNSON SD KWON Y ROBERTS S THORNDIKE EH JESSOP CP LINGEL K MARSISKE H PERL ML UGOLINI D WANG R ZHOU X COAN TE FADEYEV V KOROLKOV I MARAVIN Y NARSKY I SHELKOV V STAECK J STROYNOWSKI R VOLOBOUEV I YE J ARTUSO M EFIMOV A FRASCONI F CAO M GOLDBERG M HE D KOPP S MONETI GC MOUNTAIN R SCHUH S SKWARNICKI T STONE S VIENHAUSER G XING X BARTELT J CSORNA SE JAIN V MARKA S GODANG R KINOSHITA K LAI IC POMIANOWSKI P SCHRENK S BONVICINI G CINABRO D GREENE R PERERA LP ZHOU GJ BARISH B CHADHA M CHAN S EIGEN G MILLER JS OGRADY C SCHMIDTLER M URHEIM J WEINSTEIN AJ WURTHWEIN F ASNER DM BLISS DW MASEK G PAAR HP PRELL S SIVERTZ M SHARMA V GRONBERG J HILL TS KUTSCHKE R LANGE DJ MENARY S MORRISON RJ NELSON HN NELSON TK QIAO C RICHMAN JD ROBERTS D RYD A WITHERELL MS BALEST R BEHRENS BH FORD WT PARK H 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 ECKLUND KM EHRLICH R ELIA R FOLAND AD GAIDAREV P GALIK RS GITTELMAN B GRAY SW HARTILL DL HELTSLEY BK HOPMAN PI KANDASWAMY J KIM PC KREINICK DL LEE T LIU Y LUDWIG GS MASUI J MEVISSEN J MISTRY NB NG CR NORDBERG E OGG M PATTERSON JR PETERSON D RILEY D SOFFER A VALANTSPAIGHT B WARD C ATHANAS M AVERY P JONES CD LOHNER M PRESCOTT C YELTON J ZHENG J BRANDENBURG G BRIERE RA GAO YS KIM DYJ WILSON R YAMAMOTO H
Citation
Te. Browder et al., NEW UPPER LIMIT ON THE DECAY ETA-]E(+)E(-), Physical review. D. Particles and fields, 56(9), 1997, pp. 5359-5365
Citations number
9
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
56
Issue
9
Year of publication
1997
Pages
5359 - 5365
Database
ISI
SICI code
0556-2821(1997)56:9<5359:NULOTD>2.0.ZU;2-1
Abstract
We have searched for the rare decay of the eta meson eta-->e(+)e(-) us ing the CLEO II detector. The eta's were produced in e(+)e(-) collisio ns with 10 GeV center-of-mass energy at the Cornell Electron Storage R ing (CESR). We find with 90% confidence the upper limit on the branchi ng fraction B(eta-->e(+)e(-))<7.7x10(-5). The application of conventio nal elementary particle theory to this decay predicts a branching frac tion of about 10(-9).