W boson production cross section at the Large Hadron Collider with script $O(\alpha_{s}^{2})$ corrections
By K. Melnikov, Frank Petriello. 2006
146 citations recorded by the source corpus.
We compute the {Omicron}({alpha}{sub s}{sup 2}) QCD corrections to the fully differential cross-section pp {yields} WX {yields} {ell}{nu}X, retaining all effects from spin correlations. The knowledge of these corrections makes it possible to calculate with high precision the W boson production rate and acceptance at the LHC, subject to realistic cuts on the lepton and missing energy distributions. For certain choices of cuts we find large corrections when going from next-to-leading order (NLO) to next-to-next-to-leading order (NNLO) in perturbation theory. These corrections are significantly larger than those obtained by parton-shower event generators merged with NLO calculations. Our calculation may be used to assess and significantly reduce the QCD uncertainties in the many studies of W boson production planned at the LHC.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/fe8070828a0512e68bd39db73c818fdc54564633
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Citations in the corpus
- Measurement of the Inclusive W and Z Production Cross Sections in pp Collisions at sqrt(s) = 7 TeV (2011, methodology): “RESBOS fixes µR and µF to the boson mass, so FEWZ [54, 55] code is used to estimate the effect of scale dependence of NNLO calculations that is quoted as a systematic uncertainty.”
- A subtraction scheme for computing QCD jet cross sections at NNLO: regularization of doubly-real emissions (2006, methodology): “In recent years severe efforts have been made to compute the NNLO corrections to the parton distribution functions [7] and important basic processes, such as vector boson production [8, 9, 10, 11, 12 ] and Higgs production [9, 13, 14, 15, 16] in hadron collisions”
- Sector Decomposition (2008, methodology): “Knowledge about the physical singularity structure (i.e. the soft and collinear limits) and inspection by eye of certain terms can certainly help to prevent unnecessary decompositions, but the applicability of such criteria is rather limited for complicated expressions as occurring e.g. in NNLO matr”