HEAVY FLAVOURS AND PROTON STRUCTURE
QCD Analysis of Combined Measurement of charm structure function at HERA (Preliminary)
(1) F2cc compared to NLO QCD using HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, standard RTVFNS![fig01](heavy_flavours/fits_charm_thumb/fig01.gif)
F2cc compared to NLO QCD using HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, standard RTVFNS
(2) F2cc compared to NLO QCD using HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, optimized RTVFNS
![fig02](heavy_flavours/fits_charm_thumb/fig02.gif)
F2cc compared to NLO QCD using HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, optimized RTVFNS
(3) NLO PDF fit including HERA F2cc data, standard RTVFNS, Q2=2 GeV2
![fig03](heavy_flavours/fits_charm_thumb/fig03.gif)
NLO PDF fit including HERA F2cc data, standard RTVFNS, Q2=2 GeV2
(4) NLO PDF fit including HERA F2cc data, optimized RTVFNS, Q2=2 GeV2
![fig04](heavy_flavours/fits_charm_thumb/fig04.gif)
NLO PDF fit including HERA F2cc data, optimized RTVFNS, Q2=2 GeV2
(5) NLO PDF fit including HERA F2cc data, standard RTVFNS, Q2=10 GeV2
![fig05](heavy_flavours/fits_charm_thumb/fig05.gif)
NLO PDF fit including HERA F2cc data, standard RTVFNS, Q2=10 GeV2
(6) NLO PDF fit including HERA F2cc data, optimized RTVFNS, Q2=10 GeV2
![fig06](heavy_flavours/fits_charm_thumb/fig06.gif)
NLO PDF fit including HERA F2cc data, optimized RTVFNS, Q2=10 GeV2
(7) F2cc compared to NLO QCD using HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, ACOT full
![fig07](heavy_flavours/fits_charm_thumb/fig07.gif)
F2cc compared to NLO QCD using HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, ACOT full
(8) NLO PDF fit including HERA F2cc data, mc=1.4 GeV, Q2=2 GeV2, ACOT full, HERAPDF1.0 in ACOT scheme is also shown.
![fig08](heavy_flavours/fits_charm_thumb/fig08.gif)
NLO PDF fit including HERA F2cc data, mc=1.4 GeV, Q2=2 GeV2, ACOT full, HERAPDF1.0 in ACOT scheme is also shown.
(9) NLO PDF fit including HERA F2cc data, mc=1.4 GeV, Q2=10 GeV2, ACOT full, HERAPDF1.0 in ACOT scheme is also shown.
![fig09](heavy_flavours/fits_charm_thumb/fig09.gif)
NLO PDF fit including HERA F2cc data, mc=1.4 GeV, Q2=10 GeV2, ACOT full, HERAPDF1.0 in ACOT scheme is also shown.
(10) NLO PDF fit including HERA F2cc data, mc=1.4 GeV and mc=1.65 GeV, Q2=2 GeV2, ACOT full
![fig10](heavy_flavours/fits_charm_thumb/fig10.gif)
NLO PDF fit including HERA F2cc data, mc=1.4 GeV and mc=1.65 GeV, Q2=2 GeV2, ACOT full
(11) NLO PDF fit including HERA F2cc data, mc=1.4 GeV and mc=1.65 GeV, Q2=10 GeV2, ACOT full
![fig11](heavy_flavours/fits_charm_thumb/fig11.gif)
NLO PDF fit including HERA F2cc data, mc=1.4 GeV and mc=1.65 GeV, Q2=10 GeV2, ACOT full
(12) F2cc compared to NLO QCD using HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, FFNS
![fig12](heavy_flavours/fits_charm_thumb/fig12.gif)
F2cc compared to NLO QCD using HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, FFNS
(13) NLO PDF fit including HERA F2cc data, mc=1.4 GeV, Q2=2 GeV2, FFNS, HERAPDF1.0 in FFNS scheme is also shown.
![fig13](heavy_flavours/fits_charm_thumb/fig13.gif)
NLO PDF fit including HERA F2cc data, mc=1.4 GeV, Q2=2 GeV2, FFNS, HERAPDF1.0 in FFNS scheme is also shown.
(14) NLO PDF fit including HERA F2cc data, mc=1.4 GeV, Q2=10 GeV2, FFNS, HERAPDF1.0 in FFNS scheme is also shown.
![fig14](heavy_flavours/fits_charm_thumb/fig14.gif)
NLO PDF fit including HERA F2cc data, mc=1.4 GeV, Q2=10 GeV2, FFNS, HERAPDF1.0 in FFNS scheme is also shown.
(15) F2cc compared to NNLO HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, alfa_s=0.1145
![fig15](heavy_flavours/fits_charm_thumb/fig15.gif)
F2cc compared to NNLO HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, alfa_s=0.1145
(16) F2cc compared to NNLO HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, alfa_s=0.1176
![fig16](heavy_flavours/fits_charm_thumb/fig16.gif)
F2cc compared to NNLO HERA PDF using charm data for mc=1.4 and mc=1.65 GeV, alfa_s=0.1176