Experimental momentum spectra of identified hadrons at e+ e- colliders compared to QCD calculations
作者： N. C. Br�mmer
DOI: 10.1007/BF01556361
关键词: Parton 、 Quantum chromodynamics 、 Momentum 、 Particle physics 、 Physics 、 Elementary particle 、 Perturbation theory (quantum mechanics) 、 Hadron 、 Electron–positron annihilation 、 Nuclear physics 、 Context (language use)
摘要: Experimental data on the shape of hadronic momentum spectra are compared to theoretical predictions in context calculations Modified Leading Log Approximation (MLLA), under assumption Local Parton Hadron Duality (LPHD). Considered experimental measurements ate+e−-colliders ξ p * position maximum distribution =log(1/x ), wherex =p/pbeam. The parameter is determined for various hadrons at centre mass energies. dependence hadron type poses some interesting questions about process hadron-formation. energy seen be described adequately by perturbation theory. A quantitative check LPHD + MLLA possible extracting a value α s from an overall fit scaling behaviour .
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