Parton distributions for the LHC

TL;DR: MadGraph5 aMC@NLO as discussed by the authors is a computer program capable of handling all these computations, including parton-level fixed order, shower-matched, merged, in a unified framework whose defining features are flexibility, high level of parallelisation and human intervention limited to input physics quantities.

TL;DR: In this article, the first set of parton distribution functions (PDFs) determined with a methodology validated by a closure test is presented, which is based on LO, NLO and NNLO QCD theory and also includes electroweak corrections.

TL;DR: In this article, the first determination of parton distributions of the nucleon at NLO and NNLO based on a global data set which includes LHC data: NNPDF2.3 is presented, which includes, besides the deep inelastic, Drell-Yan, gauge boson production and jet data already used in previous global PDF determinations, all relevant LHC Data for which experimental systematic uncertainties are currently available: ATLAS and LHCb W and Z rapidity distributions from the 2010 run, CMS W electron asymmetry data from the 2011 run,

TL;DR: In this paper, the authors present the LHAPDF-6 library, a ground-up re-engineering of the PDFLIB/LHAPDF paradigm for PDF access which removes all limits on use of concurrent PDF sets, massively reduces static memory requirements, offers improved CPU performance, and fixes fundamental bugs in multi-set access to PDF metadata.

TL;DR: In this article, the authors investigate single Higgs and Higgs pair production at the LHC in models of Universal Extra Dimensions (UED) and use the UED model as a testing ground for the Effective Field Theory approach to physics beyond the Standard Model.

TL;DR: The impact of extra radiation on predictions of jats:inline-formula processes within the dimension-6 SMEFT framework is explored.

TL;DR: In this article, the authors measured the W boson angular distribution in events with high transverse momentum jets using data collected by the ATLAS experiment from proton-proton collisions at a centre-of-mass energy s=8TeV at the Large Hadron Collider, corresponding to an integrated luminosity of 20.3fb−1.