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Fernandez, E.; Ford, W.T.; Qi, N.
Colorado Univ., Boulder (USA); Istituto Nazionale di Fisica Nucleare, Frascati (Italy). Lab. Nazionale di Frascati1984
Colorado Univ., Boulder (USA); Istituto Nazionale di Fisica Nucleare, Frascati (Italy). Lab. Nazionale di Frascati1984
AbstractAbstract
[en] We present the differential angular cross section for Bhabha scattering as measured by the MAC detector at PEP, based on a 127 pb-1 sample at √s = 29 GeV. A fit of the cross section to the prediction of the electroweak standard model yields g/sub a/2 = 0.33 +- 0.24 and g/sub v/2 = 0.09 +- 0.14 at m/sub Z/ = 90 GeV. The pure QED solution g/sub a/ = g/sub v/ = 0 is excluded at the 2 standard deviation level. 8 references
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Jul 1984; 11 p; 22. international conference on high energy physics; Leipzig (German Democratic Republic); 19-25 Jul 1984; MAC--704; CONF-840757--26; Available from NTIS, PC A02/MF A01 as DE85004722
Record Type
Report
Literature Type
Conference; Numerical Data
Report Number
Country of publication
ANTILEPTONS, ANTIMATTER, ANTIPARTICLES, BASIC INTERACTIONS, CROSS SECTIONS, DATA, DISTRIBUTION, ELASTIC SCATTERING, ELEMENTARY PARTICLES, ENERGY RANGE, FERMIONS, FIELD THEORIES, GEV RANGE, INFORMATION, INTERACTIONS, LEPTON-LEPTON INTERACTIONS, LEPTONS, MATHEMATICAL MODELS, MATTER, NUMERICAL DATA, PARTICLE INTERACTIONS, PARTICLE MODELS, QUANTUM FIELD THEORY, SCATTERING, STORAGE RINGS, UNIFIED GAUGE MODELS
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