2004/05/24 by ZEUS Collaboration, S. Chekanov, M. Derrick +98
Physics and Astronomy · #Astronomy #Astrophysics #Charged particle #Compact Muon Solenoid #Cross section (physics) #Deep inelastic scattering #Galaxy #HERA #High-Energy Particle Collisions Research #Inelastic scattering #Jet (fluid) #Luminosity #Muon #Nuclear physics #Optics #Particle physics #Particle physics theoretical and experimental studies #Perturbative QCD #Physics #Pseudorapidity #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Scattering #ZEUS (particle detector) #hep-ex
paper · pdf · doi:10.1016/j.physletb.2004.08.048
published as Phys.Lett.B599:173-189,2004 · 18 pages, 4 figures
arxiv created 2004/05/24 · openalex publication_date 2004/09/08 · arxiv updated 2012/08/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
The beauty production cross section for deep inelastic scattering events with at least one hard jet in the Breit frame together with a muon has been measured, for photon virtualities Q 2 > 2 GeV 2 , with the ZEUS detector at HERA using integrated luminosity of 72 pb −1 . The total visible cross section is σ b b ¯ ( e p → e jet μ X ) = 40.9 ± 5.7 ( stat . ) − 4.4 + 6.0 ( syst . ) pb . The next-to-leading order QCD prediction lies about 2.5 standard deviations below the data. The differential cross sections are in general consistent with the NLO QCD predictions; however at low values of Q 2 , Bjorken x , and muon transverse momentum, and high values of jet transverse energy and muon pseudorapidity, the prediction is about two standard deviations below the data.