Uncertainties on Higgs and ttbar predictions at the LHC from CTEQ-TEA Global Analysis

C.R. Schmidt, Sayipjamal Dulat, Jun GAO, Marco Guzzi, Tie-Jiun Hou, Joey Walter Huston, Pavel Nadolski, Jon Pumplin, Dan Stump, C. P. Yuan
2014 Proceedings of XXII. International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2014)   unpublished
We report on a recent study of the possibility of intrinsic (non-perturbative) charm in parton distribution functions (PDFs) of the proton, within the context of the CT10 next-to-next-to-leading order (NNLO) global analysis. We also report on a study of uncertainties in the production of the Higgs boson and tt through gluon fusion at the LHC, arising from uncertainties of the PDFs and of the value of the strong coupling constant α s (M Z ). Comparison is made between the predictions of the
more » ... tainties computed based on the Hessian and the Lagrange Multiplier methods within the CTEQ-TEA global analysis framework. CT10 IC (intrinsic charm) PDF sets and CT10H (Higgs boson extreme uncertainty) PDF sets are publicly available for model-specific phenomenological analyses.
doi:10.22323/1.203.0146 fatcat:rrifs5tk4fauxhamr34q2nv75m