DETERMINATION OF ALPHA-S FROM ENERGY ENERGY CORRELATIONS MEASURED ON THE Z0 RESONANCE

被引:0
作者
ADEVA, B
机构
[1] European Laboratory for Particle Physics, CERN
[2] INFN-Sezione di Firenze, University of Firenze
[3] Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas, CIEMAT
[4] Johns Hopkins University, Baltimore
[5] INFN-Sezione di Napoli, University of Naples
[6] Northeastern University, Boston
[7] World Laboratory, FBLJA Project
[8] Eidgenössische Technische Hochschule, ETH Zürich
[9] Massachusetts Institute of Technology, Cambridge
[10] Leningrad Nuclear Physics Institute
[11] Central Laboratory of Automation and Instrumentation, CLANP, Sofia
[12] INFN-Sezione di Bologna
[13] Institute of Theoretical and Experimental Physics, ITEP
[14] University of Michigan, Ann Arbor
[15] Tata Institute of Fundamental Research, Bombay
[16] INFN - Sezione di Roma, University of Rome La Sapienza
[17] Princeton University, Princeton
[18] Union College, Schenectady
[19] University of Geneva
[20] Laboratoire de Physique des Particules, LAPP
[21] Central Research Institute for Physics, the Hungarian Academy of Sciences
[22] I. Physikalisches Institut, RWTH, W-5100 Aachen, FRG and III. Physikalisches Institut, RWTH
[23] National Institute for High Energy Physics, NIKHEF, NL-1009 DB Amsterdam, The Netherlands and NIKHEF-H and University of Nijmegen
[24] Paul Scherrer (PSI), Würenlingen
[25] University of Lausanne
[26] University of California, San Diego
[27] Carnegie Mellon University, Pittsburgh
[28] Institut de Physique Nuclèaire, Lyonm IN2P3-CNRS, Université Claude Bernard
[29] Purdue University, West Lafayette
[30] University of Alabama, Tuscaloosa
[31] Lawrence Livermore National Laboratory, Livermore
[32] Institute of High Energy Physics, IHEP, Beijing
[33] California Institute of Technology, Pasadena
[34] Oak Ridge National Laboratory, Oak Ridge
[35] High Energy Physics Institute, Berlin
[36] Shanghai Institute of Ceramics, SIC, Shanghai
[37] Los Alamos National Laboratory, Los Alamos
[38] Harvard University, Cambridge
[39] University of Hamburg
关键词
D O I
10.1016/0370-2693(91)91925-L
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a study of energy-energy correlations based on 83 000 hadronic Z0 decays. From this data we determine the strong coupling constant alpha-s to second order QCD: alpha-s(91.2 GeV) = 0.121 +/- 0.004(exp.) +/- 0.002(hadr.)-0.006(+0.009)(scale) +/- 0.006(theor.) from the energy-energy correlation and alpha-s(91.2 GeV) = 0.115 +/- 0.004(exp.)-0.004(+0.007)(hadr.)-0.000(+0.002)(scale)-0.005(+0.003)(theor.) from its asymmetry using a renormalization scale mu-2 = 0.1 s. The first error (exp.) is the systematic experimental uncertainty, the statistical error is negligible. The other errors are due to hadronization (hadr.), renormalization scale (scale) uncertainties, and differences between the calculated second order corrections (theor.).
引用
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页码:469 / 478
页数:10
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