Parton distributions and the LHC:

Soft-gluon resummation for heavy quark production in charged-current Deep Inelastic Scattering

“…We shall present results based on the new generation of CTEQ NLO MS parton distribution functions [28], the so-called CTEQ6M set, but similar results can be obtained using, e.g., the MRST [29] or the GRV [30] sets.…”

“…Since the resummed coefficient function is given in N-space, in principle one may like to use parton distribution functions in Mellin space as well, in order to get the resummed structure function in moment space and finally invert it numerically from N-to x-space. However, all modern sets of parton distribution functions [28,29,30] are given numerically in the form of grids in the (x, Q 2 ) space.…”

Measurement of WW + WZ production cross section and study of the dijet mass spectrum in the ℓν + jets final state at CDF

“…An additional uncertainty in the PDFs comes from the choice of Λ QCD , used to define the strong coupling constant α s in the parameterization. Two PDF parameterizations with different choices of Λ QCD are provided by MRST Collaboration [73]. In total 43 sets of PDFs are used to evaluate the systematic uncertainty due to PDFs.…”

MULTIJET PRODUCTION IN NEUTRAL CURRENT DEEP INELASTIC SCATTERING AT HERA AND DETERMINATION OF αs

“…The NLO calculations were carried out in the MS scheme for five massless quark flavors with the program Nlojet [42] using CTEQ6 [43], CTEQ4 [44], MRST99 [45] and ZEUS-S [46] for the proton parton density functions (PDFs). Nlojet allows a computation of the trijet production cross sections to next-to-leading order, i.e.…”