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Recent progress on parton distribution function analysis by CTEQ-TEA

Update on CTEQ pdfs for proton collisions.

The talk will cover :
(1) Uncertainty induced by the strong coupling alpha s in the PDF analysis:  PDFs and alpha s are the main sources of theoretical uncertainties on LHC predictions. They are correlated and often pose a question on the uncertainty estimates of physical measureables. We develop a simply method to disentangle this issue.
(2) New PDFs incorporating the data from combined HERA analysis and the Tevatron W lepton asymmetry;
and (3) progress on NNLO analysis with general mass treatment.