A Direct Determination of the Gluon Density in the Proton at Low x

Abstract

A leading order determination of the gluon density in the proton has been performed in the fractional momentum range $1.9\cdot 10^{-3}<x_{g/p}<0.18$ by measuring multi-jet events from boson-gluon fusion in deep-inelastic scattering with the H1 detector at the electron-proton collider HERA. This direct determination of the gluon density was performed in a kinematic region previously not accessible. The data show a considerable increase of the gluon density with decreasing fractional momenta of the gluons.

19 pages, latex, 5 figures appended as uuencoded file

References in corpus (3)

• Global QCD Analysis and the CTEQ Parton Distributions
• First Measurement of the Deep--Inelastic Structure of Proton Diffraction
• Inclusive Parton Cross Sections in Photoproduction and Photon Structure

Cited by in corpus (11)

• HERA Collider Physics
• Precision Measurements with High Energy Neutrino Beams
• Study of the Fundamental Structure of Matter with an Electron-Ion Collider
• Measurement of D* Meson Cross Sections at HERA and Determination of the Gluon Density in the Proton using NLO QCD
• Photoproduction of $D^{\ast \pm }$ Mesons in $ep$ Collisions at HERA
• Gluon polarization from correlated high-pT hadron pairs in polarized electro-production
• Analysis of Low-$x$ Gluon Density from the $F_2$ Scaling Violations
• Nonlinear effects in gluon distribution predicted by GLR-MQ evolution equation at next-to-leading order in LHC data
• Working Group Report on the Structure of the Proton
• Deep Inelastic Scattering at HERA
• Power Corrections to Fragmentation Functions in Flavour-Singlet Deep Inelastic Scattering