publication . Article . Other literature type . Preprint . 2013

Energy evolution of the moments of the hadron distribution in QCD jets including NNLL resummation and NLO running-coupling corrections

David d'Enterria;
Open Access
  • Published: 31 Oct 2013 Journal: Journal of High Energy Physics, volume 2,014 (eissn: 1029-8479, Copyright policy)
  • Publisher: Springer Nature
Abstract
The moments of the single inclusive momentum distribution of hadrons in QCD jets, are studied in the next-to-modified-leading-log approximation (NMLLA) including next-to-leading-order (NLO) corrections to the alpha_s strong coupling. The evolution equations are solved using a distorted Gaussian parametrisation, which successfully reproduces the spectrum of charged hadrons of jets measured in e+e- collisions. The energy dependencies of the maximum peak, multiplicity, width, kurtosis and skewness of the jet hadron distribution are computed analytically. Comparisons of all the existing jet data measured in e+e- collisions in the range sqrt(s)~2-200 GeV to the NMLLA...
Subjects
arXiv: High Energy Physics::ExperimentHigh Energy Physics::Phenomenology
free text keywords: Particle Physics - Phenomenology, Nuclear and High Energy Physics, High Energy Physics - Phenomenology, High Energy Physics - Experiment, Nuclear Experiment, Nuclear Theory
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