A LIMIT ON THE MASS OF THE NU(TAU)

Authors
AMMAR R BARINGER P BEAN A BESSON D COPPAGE D DARLING C DAVIS R KOTOV S KRAVCHENKO I KWAK N ZHOU L ANDERSON S KUBOTA Y LEE SJ ONEILL JJ POLING R RIEHLE T SMITH A ALAM MS ATHAR SB LING Z MAHMOOD AH TIMM S WAPPLER F ANASTASSOV A DUBOSCQ JE FUJINO D GAN KK HART T HONSCHEID K KAGAN H KASS R LEE J SCHWARTHOFF H SPENCER MB SUNG M UNDRUS A WOLF A ZOELLER MM RICHICHI SJ SEVERINI H SKUBIC P BISHAI M FAST J HINSON JW MENON N MILLER DH SHIBATA EI SHIPSEY IPJ YURKO M GLENN S KWON Y LYON AL ROBERTS S THORNDIKE EH JESSOP CP LINGEL K MARSISKE H PERL ML SAVINOV V UGOLINI D ZHOU X COAN TE FADEYEV V KOROLKOV I MARAVIN Y NARSKY I SHELKOV V STAECK J STROYNOWSKI R VOLOBOUEV I YE J ARTUSO M AZFAR F EFIMOV A GOLDBERG M HE D KOPP S MONETI GC MOUNTAIN R SCHUH S SKWARNICKI T STONE S VIEHHAUSER G WANG JC XING X BARTELT J CSORNA SE JAIN V MCLEAN KW MARKA S GODANG R KINOSHITA K LAI IC POMIANOWSKI P SCHRENK S BONVICINI G CINABRO D GREENE R PERERA LP ZHOU GJ CHADHA M CHAN S EIGEN G MILLER JS SCHMIDTLER M URHEIM J WEINSTEIN AJ WURTHWEIN F BLISS DW JAFFE DE MASEK G PAAR HP PRELL S SHARMA V ASNER DM GRONBERG J HILL TS LANGE DJ MORRISON RJ NELSON HN NELSON TK ROBERTS D BEHRENS BH FORD WT GRITSAN A ROY J SMITH JG ALEXANDER JP BAKER R BEBEK C BERGER BE BERKELMAN K BLOOM K BOISVERT V CASSEL DG CROWCROFT DS DICKSON M VONDOMBROWSKI S DRELL PS ECKLUND KM EHRICH R FOLAND AD GAIDAREV P GIBBONS L GITTELMAN B GRAY SW HARTILL DL HELTSLEY BK HOPMAN PI KANDASWAMY J KREINICK DL LEE T LIU Y 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 PATTON S PRESCOTT C YELTON J ZHENG J BRANDENBURG G BRIERE RA ERSHOV A GAO YS KIM DYJ WILSON R YAMAMOTO H BROWDER TE 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 PATEL PM SADOFF AJ
Citation
R. Ammar et al., A LIMIT ON THE MASS OF THE NU(TAU), Physics letters. Section B, 431(1-2), 1998, pp. 209-218
Citations number
29
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
431
Issue
1-2
Year of publication
1998
Pages
209 - 218
Database
ISI
SICI code
0370-2693(1998)431:1-2<209:ALOTMO>2.0.ZU;2-P
Abstract
A limit on the mass of the tau neutrino m(v tau) is derived from 4.5 x 10(6) tau pairs produced in an integrated luminosity of 5.0 fb(-1) of e(+)e(-) --> gamma --> tau(+)tau(-) reactions at center of mass ener gies approximate to 10.6 GeV. The measurement technique involves a two -dimensional extended likelihood analysis, including the dependence of the end-point population on in,, and allows for the first time an exp licit background contribution. We use the the decays tau --> 5 pi v(ta u) and tau --> 3 pi 2 pi(0)v(tau) to obtain an upper limit of 30 MeV/c (2) at 95% C.L. (C) 1998 Elsevier Science B.V. All rights reserved.