The scaled momentum distributions of charged particles in jets have been measured for dijet photoproduction with the ZEUS detector at HERA using an integrated luminosity of 359 pl(-1). The distributions are compared to predictions based on pertubative QCD carried out in the framework of the modified leading-logarithmic approximation (MLLA) and assuming local parton-hadron duality (LPHD). The universal MLLA scale, Lambda(eff), and the LPHD parameter, K(ch), are extracted.
Scaled momentum distributions of charged particles in dijet photoproduction at HERA
CAPUA, Marcella;Fazio S.;MASTROBERARDINO, Anna;Schioppa M.;TASSI, Enrico;
2009-01-01
Abstract
The scaled momentum distributions of charged particles in jets have been measured for dijet photoproduction with the ZEUS detector at HERA using an integrated luminosity of 359 pl(-1). The distributions are compared to predictions based on pertubative QCD carried out in the framework of the modified leading-logarithmic approximation (MLLA) and assuming local parton-hadron duality (LPHD). The universal MLLA scale, Lambda(eff), and the LPHD parameter, K(ch), are extracted.File in questo prodotto:
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