Measurement of Beauty Photoproduction near Threshold using Di-electron Events with the H1 Detector at HERA
arXiv:1206.4346 · doi:10.1140/epjc/s10052-012-2148-1
Abstract
The cross section for ep -> e b\bar{b} X in photoproduction is measured with the H1 detector at the ep-collider HERA. The decay channel b\bar{b} -> ee X' is selected by identifying the semi-electronic decays of the b-quarks. The total production cross section is measured in the kinematic range given by the photon virtuality Q^2 <= 1 GeV^2, the inelasticity 0.05 <= y <= 0.65 and the pseudorapidity of the b-quarks |eta(b)|,|eta(\bar{b})| <= 2. The differential production cross section is measured as a function of the average transverse momentum of the beauty quarks <P_T(b)> down to the threshold. The results are compared to next-to-leading-order QCD predictions.
34 pages, 6 tables, 12 figures
References in corpus (10)
- A Vertex Trigger based on Cylindrical Multiwire Proportional Chambers
- Un-integrated PDFs in CCFM
- Combining Triggers in HEP Data Analysis
- Determination of the Integrated Luminosity at HERA using Elastic QED Compton Events
- Beauty photoproduction using decays into electrons at HERA
- An Unfolding Method for High Energy Physics Experiments
- Measurement of beauty production from dimuon events at HERA
- Measurement of heavy-quark jet photoproduction at HERA
- Measurement of Beauty and Charm Photoproduction using Semi-muonic Decays in Dijet Events at HERA
- Heavy Flavour Production