Inclusive D*± meson and associated dijet production in deep-inelastic scattering at HERA


Aktas A., Andreev V., Anthonis T., Antunovic B., Aplin S., Asmone A., ...Daha Fazla

European Physical Journal C, cilt.51, sa.2, ss.271-287, 2007 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 51 Sayı: 2
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1140/epjc/s10052-007-0296-5
  • Dergi Adı: European Physical Journal C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.271-287
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

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 ≤ Q 2 ≤ 100 GeV2 and of inelasticity 0.05≤y≤0.7. Differential cross sections are measured as a function of Q2 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 k T-unintegrated gluon distribution of the proton. © Springer-Verlag Berlin Heidelberg 2007.