PROTON STRUCTURE
QCD Fit HERAPDF1.5:
H1prelim-10-142, ZEUS-prel-10-018Part of the HERA II data has been combined (H1-prelim-10-141,ZEUS-prel-10-017). The PDF set HERAPDF1.5 represents the QCD analysis of the combined HERA I including the preliminary combination of the HERA II data. Such, higher precision at high Q2 and high x is achieved. The precision of the PDFs at high x is significantly improved, particularly in the valence sector.
(1) HERAPDF1.5, Q2=2 GeV![fig1a](proton_structure/fits2010_herapdf1.5_plots_thumb/fig1a.gif)
HERAPDF1.5, Q2=2 GeV
(2) HERAPDF1.5, Q2=10GeV2
![fig1b](proton_structure/fits2010_herapdf1.5_plots_thumb/fig1b.gif)
HERAPDF1.5, Q2=10GeV2
(3) HERAPDF1.5, Q2=10000GeV2
![fig1c](proton_structure/fits2010_herapdf1.5_plots_thumb/fig1c.gif)
HERAPDF1.5, Q2=10000GeV2
(4) HERAPDF1.0, Q2=2GeV2
![fig2a](proton_structure/fits2010_herapdf1.5_plots_thumb/fig2a.gif)
HERAPDF1.0, Q2=2GeV2
(5) HERAPDF1.0, Q2=10GeV2
![fig2b](proton_structure/fits2010_herapdf1.5_plots_thumb/fig2b.gif)
HERAPDF1.0, Q2=10GeV2
(6) HERAPDF1.0, Q2=10000GeV2
![fig2c](proton_structure/fits2010_herapdf1.5_plots_thumb/fig2c.gif)
HERAPDF1.0, Q2=10000GeV2
(7) HERAPDF1.5, Q2=2 GeV2, linx scale
![fig3a](proton_structure/fits2010_herapdf1.5_plots_thumb/fig3a.gif)
HERAPDF1.5, Q2=2 GeV2, linx scale
(8) HERAPDF1.5, Q2=10 GeV, linx scale
![fig3b](proton_structure/fits2010_herapdf1.5_plots_thumb/fig3b.gif)
HERAPDF1.5, Q2=10 GeV, linx scale
(9) HERAPDF1.5, Q2=10000 GeV, linx scale
![fig3c](proton_structure/fits2010_herapdf1.5_plots_thumb/fig3c.gif)
HERAPDF1.5, Q2=10000 GeV, linx scale
(10) HERAPDF1.0, Q2=2 GeV2, linx scale
![fig4a](proton_structure/fits2010_herapdf1.5_plots_thumb/fig4a.gif)
HERAPDF1.0, Q2=2 GeV2, linx scale
(11) HERAPDF1.0, Q2=10 GeV2, linx scale
![fig4b](proton_structure/fits2010_herapdf1.5_plots_thumb/fig4b.gif)
HERAPDF1.0, Q2=10 GeV2, linx scale
(12) HERAPDF1.0, Q2=10000 GeV2, linx scale
![fig4c](proton_structure/fits2010_herapdf1.5_plots_thumb/fig4c.gif)
HERAPDF1.0, Q2=10000 GeV2, linx scale
(13) HERAPDF1.5 vs HERAPDF1.0 Q2=2GeV2 linx scale
![fig5a](proton_structure/fits2010_herapdf1.5_plots_thumb/fig5a.gif)
HERAPDF1.5 vs HERAPDF1.0 Q2=2GeV2 linx scale
(14) HERAPDF1.5 vs HERAPDF1.0 Q2=10GeV2 linx scale
![fig5b](proton_structure/fits2010_herapdf1.5_plots_thumb/fig5b.gif)
HERAPDF1.5 vs HERAPDF1.0 Q2=10GeV2 linx scale
(15) HERAPDF1.5 vs HERAPDF1.0 Q2=10000GeV2 linx scale
![fig5c](proton_structure/fits2010_herapdf1.5_plots_thumb/fig5c.gif)
HERAPDF1.5 vs HERAPDF1.0 Q2=10000GeV2 linx scale
(16) Valence distributions and d/u ratios HERAPDF1.5 and HERAPDF1.0 at Q2 of 2 GeV2
![fig6](proton_structure/fits2010_herapdf1.5_plots_thumb/fig6.gif)
Valence distributions and d/u ratios HERAPDF1.5 and HERAPDF1.0 at Q2 of 2 GeV2
(17) Valence distributions and d/u ratios HERAPDF1.5 and HERAPDF1.0 at Q2 of 10 GeV2
![fig7](proton_structure/fits2010_herapdf1.5_plots_thumb/fig7.gif)
Valence distributions and d/u ratios HERAPDF1.5 and HERAPDF1.0 at Q2 of 10 GeV2
(18) Valence distributions and d/u ratios HERAPDF1.5 and HERAPDF1.0 at Q2 of 10000 GeV2
![fig8](proton_structure/fits2010_herapdf1.5_plots_thumb/fig8.gif)
Valence distributions and d/u ratios HERAPDF1.5 and HERAPDF1.0 at Q2 of 10000 GeV2
(19) e-p CC cross section for vs HERAPDF1.5
![fig9a](proton_structure/fits2010_herapdf1.5_plots_thumb/fig9a.gif)
e-p CC cross section for vs HERAPDF1.5
(20) e+p CC cross section for vs HERAPDF1.5
![fig9b](proton_structure/fits2010_herapdf1.5_plots_thumb/fig9b.gif)
e+p CC cross section for vs HERAPDF1.5
(21) e+p and e-p NC cross section for vs HERAPDF1.5
![fig9c](proton_structure/fits2010_herapdf1.5_plots_thumb/fig9c.gif)
e+p and e-p NC cross section for vs HERAPDF1.5
(22) e-p NC cross section for vs HERAPDF1.5
![fig9d](proton_structure/fits2010_herapdf1.5_plots_thumb/fig9d.gif)
e-p NC cross section for vs HERAPDF1.5
(23) e+p NC cross section for vs HERAPDF1.5 Q2 from 2 GeV2 to 120 GeV2
![fig9e](proton_structure/fits2010_herapdf1.5_plots_thumb/fig9e.gif)
e+p NC cross section for vs HERAPDF1.5 Q2 from 2 GeV2 to 120 GeV2
(24) e+p and e-p NC cross section for vs HERAPDF1.5 Q2 from 150 GeV2 to 30000 GeV2
![fig9f](proton_structure/fits2010_herapdf1.5_plots_thumb/fig9f.gif)
e+p and e-p NC cross section for vs HERAPDF1.5 Q2 from 150 GeV2 to 30000 GeV2
(25) e+p NC cross section for vs HERAPDF1.5 as a function of Q2 for different values of x
![fig9g](proton_structure/fits2010_herapdf1.5_plots_thumb/fig9g.gif)
e+p NC cross section for vs HERAPDF1.5 as a function of Q2 for different values of x