PROTON STRUCTURE
Combined Measurement of the longitudinal structure function at HERA (Preliminary)
H1-prelim-10-043, ZEUS-prel-10-001Writeup
(1) NLO PDF at 2 GeV: fit including the reduced proton-beam energy data in standard RTVFNS![fig01](proton_structure/fits_combination_plots_thumb/fig01.gif)
NLO PDF at 2 GeV: fit including the reduced proton-beam energy data in standard RTVFNS
(2) NLO PDF at 10 GeV: fit including the reduced proton-beam energy data in standard RTVFNS
![fig02](proton_structure/fits_combination_plots_thumb/fig02.gif)
NLO PDF at 10 GeV: fit including the reduced proton-beam energy data in standard RTVFNS
(3) NLO PDF at 2 GeV: fit includes the reduced proton-beam energy data, Q2>5 GeV2, standard RTVFNS
![fig03](proton_structure/fits_combination_plots_thumb/fig03.gif)
NLO PDF at 2 GeV: fit includes the reduced proton-beam energy data, Q2>5 GeV2, standard RTVFNS
(4) NLO PDF at 10 GeV: fit includes the reduced proton-beam energy data, Q2>5 GeV2, standard RTVFNS
![fig04](proton_structure/fits_combination_plots_thumb/fig04.gif)
NLO PDF at 10 GeV: fit includes the reduced proton-beam energy data, Q2>5 GeV2, standard RTVFNS
(5) NLO PDF at 2 GeV: fit includes the reduced proton-beam energy data, standard and oprimal RTVFNS
![fig05](proton_structure/fits_combination_plots_thumb/fig05.gif)
NLO PDF at 2 GeV: fit includes the reduced proton-beam energy data, standard and oprimal RTVFNS
(6) NLO PDF at 10 GeV: fit includes the reduced proton-beam energy data, standard and oprimal RTVFNS
![fig06](proton_structure/fits_combination_plots_thumb/fig06.gif)
NLO PDF at 10 GeV: fit includes the reduced proton-beam energy data, standard and oprimal RTVFNS
(7) NLO PDF at 2 GeV: fit includes the reduced proton-beam energy data, standard RTVFNS and ACOT Full
![fig07](proton_structure/fits_combination_plots_thumb/fig07.gif)
NLO PDF at 2 GeV: fit includes the reduced proton-beam energy data, standard RTVFNS and ACOT Full
(8) NLO PDF at 10 GeV: fit includes the reduced proton-beam energy data, standard RTVFNS and ACOT Full
![fig08](proton_structure/fits_combination_plots_thumb/fig08.gif)
NLO PDF at 10 GeV: fit includes the reduced proton-beam energy data, standard RTVFNS and ACOT Full
(9) NLO PDF at 2 GeV2: fit includes the reduced proton-beam energy data, ACOT Full and ACOT Chi
![fig09](proton_structure/fits_combination_plots_thumb/fig09.gif)
NLO PDF at 2 GeV2: fit includes the reduced proton-beam energy data, ACOT Full and ACOT Chi
(10) NLO PDF at 10 GeV2: fit includes the reduced proton-beam energy data, ACOT Full and ACOT Chi
![fig10](proton_structure/fits_combination_plots_thumb/fig10.gif)
NLO PDF at 10 GeV2: fit includes the reduced proton-beam energy data, ACOT Full and ACOT Chi
(11) FFNS NLO PDF at 2 GeV2: HERAPDF1.0 FFNS vs fit including the reduced proton-beam energy data
![fig11](proton_structure/fits_combination_plots_thumb/fig11.gif)
FFNS NLO PDF at 2 GeV2: HERAPDF1.0 FFNS vs fit including the reduced proton-beam energy data
(12) FFNS NLO PDF at 10 GeV2: HERAPDF1.0 FFNS vs fit including the reduced proton-beam energy data
![fig12](proton_structure/fits_combination_plots_thumb/fig12.gif)
FFNS NLO PDF at 10 GeV2: HERAPDF1.0 FFNS vs fit including the reduced proton-beam energy data
(13) NNLO PDF at 2 GeV2 for 2 values of alfa_s: HERAPDF1.0 at NNLO alfa_s=0.1176; alfa_s=0.1145
![fig13](proton_structure/fits_combination_plots_thumb/fig13.gif)
NNLO PDF at 2 GeV2 for 2 values of alfa_s: HERAPDF1.0 at NNLO alfa_s=0.1176; alfa_s=0.1145
(14) NNLO PDF at 10 GeV2 for 2 values of alfa_s: HERAPDF1.0 at NNLO alfa_s=0.1176; alfa_s=0.1145
![fig14](proton_structure/fits_combination_plots_thumb/fig14.gif)
NNLO PDF at 10 GeV2 for 2 values of alfa_s: HERAPDF1.0 at NNLO alfa_s=0.1176; alfa_s=0.1145
(15) NNLO PDF at 2 GeV2 including reduced proton energy data for alfa_s=0.1176; alfa_s=0.1145, standard RTVFNS
![fig15](proton_structure/fits_combination_plots_thumb/fig15.gif)
NNLO PDF at 2 GeV2 including reduced proton energy data for alfa_s=0.1176; alfa_s=0.1145, standard RTVFNS
(16) NNLO PDF at 10 GeV2 including reduced proton energy data for alfa_s=0.1176; alfa_s=0.1145, standard RTVFNS
![fig16](proton_structure/fits_combination_plots_thumb/fig16.gif)
NNLO PDF at 10 GeV2 including reduced proton energy data for alfa_s=0.1176; alfa_s=0.1145, standard RTVFNS
(17) NC cross section Ep=920 GeV, vs QCD@NLO with PDFs including reduced proton energy data, Q2>3.5 GeV2, RTVFNS
![fig17](proton_structure/fits_combination_plots_thumb/fig17.gif)
NC cross section Ep=920 GeV, vs QCD@NLO with PDFs including reduced proton energy data, Q2>3.5 GeV2, RTVFNS
(18) NC cross section Ep=920 GeV, vs QCD@NLO with PDFs including reduced proton energy data, Q2>5 GeV2, RTVFNS
![fig18](proton_structure/fits_combination_plots_thumb/fig18.gif)
NC cross section Ep=920 GeV, vs QCD@NLO with PDFs including reduced proton energy data, Q2>5 GeV2, RTVFNS
(19) NC cross section Ep=460 GeV, vs QCD@NLO with PDFs including reduced proton energy data, Q2>5 GeV2 and Q2>3.5 GeV2, RTVFNS
![fig19](proton_structure/fits_combination_plots_thumb/fig19.gif)
NC cross section Ep=460 GeV, vs QCD@NLO with PDFs including reduced proton energy data, Q2>5 GeV2 and Q2>3.5 GeV2, RTVFNS
(20) NC cross section Ep=575 GeV, vs QCD@NLO with PDFs including reduced proton energy data, Q2>5 GeV2 and Q2>3.5 GeV2, RTVFNS
![fig20](proton_structure/fits_combination_plots_thumb/fig20.gif)
NC cross section Ep=575 GeV, vs QCD@NLO with PDFs including reduced proton energy data, Q2>5 GeV2 and Q2>3.5 GeV2, RTVFNS
(21) HERA FL vs QCD@NLO with PDFs including reduced proton energy data, Q2>5 GeV2 and Q2>3.5 GeV2, RTVFNS
![fig21](proton_structure/fits_combination_plots_thumb/fig21.gif)
HERA FL vs QCD@NLO with PDFs including reduced proton energy data, Q2>5 GeV2 and Q2>3.5 GeV2, RTVFNS
(22) HERA FL vs QCD@NLO with PDFs including reduced proton energy data in ACOT Full, ACOT Chi, FFNS
![fig22](proton_structure/fits_combination_plots_thumb/fig22.gif)
HERA FL vs QCD@NLO with PDFs including reduced proton energy data in ACOT Full, ACOT Chi, FFNS
(23) HERA FL vs QCD@NNLO with HERA PDF @ NNLO, for alfas=0.1176 and alfas=0.1146
![fig23](proton_structure/fits_combination_plots_thumb/fig23.gif)
HERA FL vs QCD@NNLO with HERA PDF @ NNLO, for alfas=0.1176 and alfas=0.1146
(24) Saturation-inspired strudy: NLO PDFs at Q2=10 GeV2, HERAPDF1.0 and HERA PDF fit including reduced energy data. Q2>A*x^-0.3 GeV2, A=0.5
![fig24](proton_structure/fits_combination_plots_thumb/fig24.gif)
Saturation-inspired strudy: NLO PDFs at Q2=10 GeV2, HERAPDF1.0 and HERA PDF fit including reduced energy data. Q2>A*x^-0.3 GeV2, A=0.5
(25) Saturation-inspired strudy: NLO PDFs at Q2=10 GeV2, HERAPDF1.0 and HERA PDF fit including reduced energy data. Q2>A*x^-0.3 GeV2, A=1
![fig25](proton_structure/fits_combination_plots_thumb/fig25.gif)
Saturation-inspired strudy: NLO PDFs at Q2=10 GeV2, HERAPDF1.0 and HERA PDF fit including reduced energy data. Q2>A*x^-0.3 GeV2, A=1