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Inclusive $D*pm$ meson and associated dijet production in deep-inelastic scattering at HERA
- Source :
- European Physical Journal C: Particles and Fields, European Physical Journal C: Particles and Fields, 2007, 51, pp.271-287. ⟨10.1140/epjc/s10052-007-0296-5⟩, European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2007, 51, pp.271-287. ⟨10.1140/epjc/s10052-007-0296-5⟩, European Physical Journal C. Particles and Fields, European physical journal : C : particles and fields
- Publication Year :
- 2007
- Publisher :
- HAL CCSD, 2007.
-
Abstract
- Inclusive D*(+/-) production is measured in deep-inelastic ep scattering at HERA with the H1 detector. In addition, the production of dijets in events with a D*(+/-) meson is investigated. The analysis covers values of photon virtuality 2 LT = Q(2) LT = 100 GeV2 and of inelasticity 0.05 LT = y LT = 0.7. Differential cross sections are measured as a function of Q(2) and x and of various D*(+/-) meson and jet observables. Within the experimental and theoretical uncertainties all measured cross sections are found to be adequately described by next-to-leading order (NLO) QCD calculations, based on the photon - gluon fusion process and DGLAP evolution, without the need for an additional resolved component of the photon beyond what is included at NLO. A reasonable description of the data is also achieved by a prediction based on the CCFM evolution of partons involving the kT- unintegrated gluon distribution of the proton.
- Subjects :
- Quantum chromodynamics
Physics
Particle physics
Physics and Astronomy (miscellaneous)
Meson
010308 nuclear & particles physics
High Energy Physics::Phenomenology
Parton
HERA
Jet (particle physics)
Deep inelastic scattering
01 natural sciences
7. Clean energy
Nuclear physics
DGLAP
0103 physical sciences
D meson
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
High Energy Physics::Experiment
010306 general physics
Nuclear Experiment
Engineering (miscellaneous)
Subjects
Details
- Language :
- English
- ISSN :
- 14346044 and 14346052
- Database :
- OpenAIRE
- Journal :
- European Physical Journal C: Particles and Fields, European Physical Journal C: Particles and Fields, 2007, 51, pp.271-287. ⟨10.1140/epjc/s10052-007-0296-5⟩, European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2007, 51, pp.271-287. ⟨10.1140/epjc/s10052-007-0296-5⟩, European Physical Journal C. Particles and Fields, European physical journal : C : particles and fields
- Accession number :
- edsair.doi.dedup.....0e68be9d2a0335830313a7e7b7a8c04f