Distributions of charged hadrons observed in deep-inelastic muon-deuterium scattering at 490 GeV

Complete next-to leading order QCD predictions for (2+1) jet cross sections and jet rates in deep inelastic scattering (DIS) based on a new parton level Monte Carlo program are presented. All relevant helicity contributions to the total cross section are included. Results on total jet cross sections as well as differential distributions in the basic kinematical variables x, W 2 and Q 2 are shown for HERA energies and for the fixed target experiment E665 at FERMILAB. We study the dependence on the choices of the renormalization scale µ R and the factorization scale µ F and show that the NLO results are much less sensitive to the variation of µ = µ F = µ R than the LO results. The effect of an additional p T cut to our jet definition scheme is investigated. * Much higher effective luminosity will be achieved for low Q 2 quasi-real photoproduction of jets. The theoretical interpretation of these events, however, is more difficult, since there is added complication of the direct and the resolved photon contribution to the cross section, which are hard to separate † An extreme example would be (2+1) jet production at very low Q 2 (Q 2 ≈ 1GeV 2 ),where Q 2 cannot be the relevant scale for high p T jet production.

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CompleteO(? s 2 ) corrections to (2 + 1) jet cross sections in deep inelastic scattering

Brodkorb

Mirkes

1995

Z. Phys. C - Particles and Fields

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Production of neutral strange particles in muon-nucleon scattering at 490 GeV

Adams

Aderholz

Aïd

et al. 1994

Z. Phys. C - Particles and Fields

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Charged particle multiplicities in deep inelastic scattering at HERA

Aïd

Anderson

Andreev

et al. 1996

Z. Phys. C - Particles and Fields

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Using the H1 detector at HERA, charged particle multiplicity distributions in deep inelastic e + p scattering have been measured over a large kinematical region. The evolution with W and Q 2 of the multiplicity distribution and of the multiplicity moments in pseudorapidity domains of varying size is studied in the current fragmentation region of the hadronic centre-of-mass frame. The results are compared with data from xed target lepton-nucleon interactions, e + e annihilations and hadron-hadron collisions as well as with expectations from QCD based parton models. Fits to the Negative Binomial and Lognormal distributions are presented.

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Distributions of charged hadrons observed in deep-inelastic muon-deuterium scattering at 490 GeV

Cited by 13 publications

References 20 publications

CompleteO(? s 2 ) corrections to (2 + 1) jet cross sections in deep inelastic scattering

CompleteO(? s 2 ) corrections to (2 + 1) jet cross sections in deep inelastic scattering

Production of neutral strange particles in muon-nucleon scattering at 490 GeV

Charged particle multiplicities in deep inelastic scattering at HERA

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