META PDFs project aim to provide ``best'' fits for the central and error
predictions of unpolarized parton distribution functions (PDFs) of
proton, focusing on the LHC applications. Based on the meta data from
various PDF fitting groups, the META PDFs combine selected PDF measurements
while minimizing possible bias from individual groups. The META PDFs
can potentially serve as an alternative to the PDF4LHC recommendations,
and simplify the theoretical calculations and experimental analyses for
the PDF inputs.
Currently (v1.0) we only provide META PDFs at Next-to-Next-to-Leading order
in QCD by combining the PDFs from CT10, MSTW2008, and NNPDF2.3. Version 1.0
consists of one regular set (best+100 error PDFs), another set specified for
SM Higgs boson study, and two more PDFs (αs(Mz)
=0.116 and 0.120) for calculating αs uncertainties.