MEASUREMENT OF ALPHA(S) FROM TAU-DECAYS

Authors
COAN T DOMINICK J FADEYEV V KOROLKOV I LAMBRECHT M SANGHERA S SHELKOV V SKWARNICKI T STROYNOWSKI R VOLOBOUEV I WEI G ARTUSO M GAO M GOLDBERG M HE D HORWITZ N MONETI GC MOUNTAIN R MUHEIM E MUKHIN Y PLAYFER S ROZEN Y STONE S XING X ZHU G BARTELT J CSORNA SE EGYED Z JAIN V GIBAUT D KINOSHITA K POMIANOWSKI P BARISH B CHADHA M CHAN S COWEN DF EIGEN G MILLER JS OGRADY C URHEIM J WEINSTEIN AJ WURTHWEIN E ASNER DM ATHANAS M BLISS DW BROWER WS MASEK G PAAR HP SIVERTZ M 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 SMITH JG ALEXANDER JP BEBEK C BERGER BE BERKELMAN K BLOOM K BROWDER TE CASSEL DG CHO HA COFFMAN DM CROWCROFT DS DICKSON M DRELL PS DUMAS DJ EHRLICH R ELIA R GAIDAREV P GALIK RS GARCIASCIVERES M GITTELMAN B GRAY SW HARTILL DL HELTSLEY BK HENDERSON S JONES CD JONES SL KANDASWAMY J KATAYAMA N KIM PC KREINICK DL LIU Y LUDWIG GS MASUI J MEVISSEN J MISTRY NB NG CR NORDBERG E PATTERSON JR PETERSON D RILEY D SOFFER A AVERY P FREYBERGER A LINGEL K RODRIGUEZ J YANG S YELTON J BRANDENBURG G CINABRO D LIU T SAULNIER M WILSON R YAMAMOTO H 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 HYATT ERF 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 KELLY M KOTOV S KRAVCHENKO I KWAK N LAM H KUBOTA Y LATTERY M MOMAYEZI M NELSON JK PATTON S POLING R SAVINOV V SCHRENK S WANG R ALAM MS KIM IJ LING Z MAHMOOD AH ONEILL JJ SEVERINI H SUN CR WAPPLER F CRAWFORD G FULTON R FUJINO D GAN KK HONSCHEID K KAGAN H KASS R LEE J SUNG M WHITE C WOLF A ZOELLER MM FU X NEMATI B ROSS WR SKUBIC P WOOD M BISHAI M FAST J GERNDT E HINSON JW MCILWAIN RL MIAO T MILLER DH MODESITT M PAYNE D SHIBATA EI SHIPSEY IPJ WANG PN GIBBONS L KWON Y ROBERTS S THORNDIKE EH
Citation
T. Coan et al., MEASUREMENT OF ALPHA(S) FROM TAU-DECAYS, Physics letters. Section B, 356(4), 1995, pp. 580-588
Citations number
21
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
356
Issue
4
Year of publication
1995
Pages
580 - 588
Database
ISI
SICI code
0370-2693(1995)356:4<580:MOAFT>2.0.ZU;2-U
Abstract
We present measurements of spectral moments extracted from the invaria nt mass distributions of the final states of hadronic tau decay produc ts recorded in the CLEO detector. From a fit of theoretical prediction s to the measurements of spectral moments and the total hadronic decay width of the tau, we determine the strong coupling constant and a set of non-perturbative QCD parameters. The strong coupling constant is m easured to be cr,(m,) = 0.306 +/- 0.024, which when extrapolated to th e Z mass, yields alpha(s)(M(Z)) = 0.114 +/- 0.003.