Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-11-11
Physics
High Energy Physics
High Energy Physics - Phenomenology
REVTEX, 2 tables, 12 figures
Scientific paper
Multiplicity, rapidity and transverse momentum distributions of hadrons produced both in inelastic and non-diffractive pp collisions at energies from \sqrt{s} = 200 GeV to 14 TeV are studied within the Monte Carlo quark-gluon string model. Good agreement with the available experimental data is obtained and predictions are made for the collisions at top LHC energy \sqrt{s} = 14 TeV. The model indicates that Feynman scaling and extended longitudinal scaling remain valid in the fragmentation regions, whereas strong violation of Feynman scaling is observed at midrapidity. The KNO scaling in multiplicity distributions is violated at LHC also. The origin of both maintenance and violation of the scaling trends is traced to short range correlations of particles in the strings and interplay between the multi-string processes at ultra-relativistic energies.
Bleibel J.
Bravina Larissa
Kaidalov Alexei B.
Zabrodin Eugene E.
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