Measurement of the charm and beauty structure functions using the H1 vertex detector at HERA

2009/07/31 by The H1 Collaboration, F. D. Aaron, M. Aldaya Martin +98 · 2 citations
Mathematics · Physics and Astronomy · #Art #Astrophysics #Beauty #Charm (quantum number) #Combinatorics #Detector #Geometry #Graph #HERA #High-Energy Particle Collisions Research #Luminosity #Mathematics #Nuclear physics #Optics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Scaling #Vertex (graph theory) #hep-ex

paper · pdf · doi:10.1140/epjc/s10052-009-1190-0

published as Eur.Phys.J.C65:89-109,2010 · 41 pages, 4 tables, 19 figures. Revised version, accepted by journal

arxiv created 2009/10/21 · openalex publication_date 2009/11/06 · arxiv updated 2012/08/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01

Abstract

Inclusive charm and beauty cross sections are measured in e − p and e + p neutral current collisions at HERA in the kinematic region of photon virtuality 5≤Q 2≤2000 GeV2 and Bjorken scaling variable 0.0002≤x≤0.05. The data were collected with the H1 detector in the years 2006 and 2007 corresponding to an integrated luminosity of 189 pb−1. The numbers of charm and beauty events are determined using variables reconstructed by the H1 vertex detector including the impact parameter of tracks to the primary vertex and the position of the secondary vertex. The measurements are combined with previous data and compared to QCD predictions.

Citations

• Improved formulation of global QCD analysis with zero-mass hard cross sections
• Higher order QCD corrections to charged-lepton deep-inelastic scattering and global fits of parton distributions
• Mellin moments of the O(αs3) heavy flavor contributions to unpolarized deep-inelastic scattering at Q2≫m2 and anomalous dimensions
• CTEQ6 parton distributions with heavy quark mass effects
• Longitudinally-invariant k⊥-clustering algorithms for hadron-hadron collisions
• Leptoproduction of heavy quarks. II. A unified QCD formulation of charged and neutral current processes from fixed-target to collider energies
• Measurement of D meson cross sections at HERA and determination of the gluon density in the proton using NLO QCD
• Treatment of heavy quarks in deeply inelastic scattering
• Review of Particle Physics

Cited by

• Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass
• Parton distributions from high-precision collider data