Parton distributions for the LHC
R. S. Thorne,W. J. Stirling,Alan D. Martin,G. Watt +3 more
- 01 Jan 2007
pp 305-308
TL;DR: In this paper, a preliminary set of updated NLO parton distributions and their uncertainties determined from CCFR and NuTeV dimuon cross sections are presented, along with additional jet data from HERA and the Tevatron.
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Abstract: We present a preliminary set of updated NLO parton distributions. For the first time we have a quantitative extraction of the strange quark and antiquark distributions and their uncertainties determined from CCFR and NuTeV dimuon cross sections. Additional jet data from HERA and the Tevatron improve our gluon extraction. Lepton asymmetry data and neutrino structure functions improve the flavour separation, particularly constraining the down quark valence distribution.
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Figures
Figure 24: The reduced cross section σ̃(x,Q2) for a selection of HERA data and the structure function F2(x,Q 2) for a selection of fixed-target data. The curves represent σ̃(x,Q2), evaluated at the HERA centre-of-mass energy, and so for the high x and low Q2 values corresponding to fixed-target data, y is negligible and the curves effectively represent the required F2(x,Q 2). The normalisations of data sets are those in the best fit at NNLO, found in Table 3. These are very similar to those at NLO, but at LO the HERA data would be 0.5–1% lower in general. 
Figure 68: W ≡ W+ + W− and Z total cross sections at the LHC (√s = 14 TeV). The error ellipses, calculated using the one-sigma error sets, are shown for the MSTW 2008 NLO and NNLO PDFs. ![Figure 44: A comparison of theory and data for W → µν charge asymmetry from DØ [49].](/figures/figure44-1-445qpxeeihpi.png)
Figure 44: A comparison of theory and data for W → µν charge asymmetry from DØ [49]. 
Figure 70: Ratio of parton luminosities at √ s = 10 TeV compared to √ s = 14 TeV at the LHC, using the MSTW 2008 NLO PDFs including the one-sigma uncertainty bands. 
Figure 7: Probability density function of the χ2-distribution with 163 degrees of freedom. 
Figure 59: Predictions for the longitudinal proton structure function, FL(x,Q 2), using NNLO PDFs and LO, NLO and NNLO coefficient functions.
![Figure 44: A comparison of theory and data for W → µν charge asymmetry from DØ [49].](/figures/figure44-1-445qpxeeihpi.webp)
Citations
Central exclusive production as a probe of the gluonic component of the η′ and η mesons
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30
Next-to-leading order QCD corrections to ZZ production in association with two jets
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The other Higgses, at resonance, in the Lee-Wick extension of the Standard Model
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TL;DR: In this paper, the Lee Wick Standard Model (LWSM) was used to investigate Higgs pair production at the Large Hadron Collider (LHC), where the neutral particles from the Higgs sector appeared as possible resonant intermediate states.
Squark production in R-symmetric SUSY with Dirac gluinos: NLO corrections
Philip Diessner,Wojciech Kotlarski,Wojciech Kotlarski,Sebastian Liebschner,Dominik Stöckinger +4 more
TL;DR: In this article, the impact of R-symmetry on squark production at the 13 TeV LHC was studied and the total cross sections and their NLO corrections from all strongly interacting states, their dependence on the Dirac gluino mass and sgluon mass as well as their systematics for selected benchmark points.
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