Journal of High Energy Physics

, 2011:69 | Cite as

Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC

Open Access
Article

Abstract

We compare predictions for the W, Z, gg → H and \( t\bar{t} \) total cross sections at the Large Hadron Collider (LHC), for a centre-of-mass energy of 7 TeV, using the most recent publicly available next-to-leading order and next-to-next-to-leading order parton distribution functions (PDFs) from all PDF fitting groups. In particular, we focus on the dependence on the different values of the strong coupling, αS(MZ2), used by each group. We also perform a comparison of the relevant quark-antiquark and gluon-gluon luminosity functions. We make some comments on the recent PDF4LHCrecommendations. Finally, we discuss the comparison of data and theory for W and Z cross sections at the LHC.

Keywords

Hadronic Colliders Standard Model Deep Inelastic Scattering Parton Model 

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Authors and Affiliations

  1. 1.Theory Group, Physics DepartmentCERNGeneva 23Switzerland

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