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Althoff, M.; Braunschweig, W.; Kirschfink, F.J.; Luebelsmeyer, K.; Martyn, H.U.; Rosskamp, P.; Sander, H.G.; Schmitz, D.; Siebke, H.; Wallraff, W.; Duchovni, E.; Eisenberg, Y.; Karshon, U.; Mikenberg, G.; Mir, R.; Revel, D.; Ronat, E.; Shapira, A.; Winik, M.; Baranko, G.; Barklow, T.; Caldwell, A.; Cherney, M.; Izen, J.M.; Mermikides, M.; Rudolph, G.; Strom, D.; Takashima, M.; Venkataramania, H.; Wicklund, E.; Sau Lan Wu; Zobernig, G.; Eskreys, A.; Gather, K.; Hultschig, H.; Joos, P.; Koetz, U.; Kowalski, H.; Ladage, A.; Loehr, B.; Lueke, D.; Maettig, P.; Notz, D.; Nowak, R.J.; Pyrlik, J.; Rushton, M.; Schuette, W.; Trines, D.; Tymieniecka, T.; Wolf, G.; Yekutieli, G.; Xiao, C.
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.); TASSO Collaboration1984
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.); TASSO Collaboration1984
AbstractAbstract
[en] Multihadron events produced by e+e- annihilation at a c.m. energy of 34.6 GeV have been used to determine αs. The predictions of 1st and 2nd order QCD models with independent jet and string fragmentation have been compared to a large variety of kinematic variables such as event shapes, transverse momentum spectra, jet masses, 3-cluster thrust and the asymmetry of energy-energy correlations. The value of αsub(s) has been found to depend on the variables used, on the fragmentation model and on the treatment of soft gluons in the 2nd order QCD calculation. Within the models considered αsub(s) has been found in complete 2nd order QCD to lie between 0.12 and 0.23. (orig.)
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Jun 1984; 61 p
Record Type
Report
Literature Type
Numerical Data
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ANGULAR CORRELATION, ANNIHILATION, ASYMMETRY, COUPLING CONSTANTS, EFFECTIVE MASS, ELECTRON-POSITRON INTERACTIONS, ENERGY DEPENDENCE, ENERGY SPECTRA, GEV RANGE 10-100, HADRONS, INCLUSIVE INTERACTIONS, JET MODEL, LIMITING FRAGMENTATION, LIMITING VALUES, MASS SPECTRA, MULTIPLE PRODUCTION, PARTICLE MODELS, PERTURBATION THEORY, QUANTUM CHROMODYNAMICS, STRONG INTERACTIONS, THEORETICAL DATA, TRANSVERSE MOMENTUM
BASIC INTERACTIONS, CORRELATIONS, DATA, ELEMENTARY PARTICLES, ENERGY RANGE, FIELD THEORIES, GEV RANGE, HYPOTHESIS, INFORMATION, INTERACTIONS, LEPTON-LEPTON INTERACTIONS, LINEAR MOMENTUM, MASS, MATHEMATICAL MODELS, NUMERICAL DATA, PARTICLE INTERACTIONS, PARTICLE PRODUCTION, QUANTUM FIELD THEORY, SPECTRA
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