NLO QCD corrections to tri-boson production

By Thomas Binoth, G. Ossola, Costas G. Papadopoulos, R. Pittau. 2008

152 citations recorded by the source corpus.

We present a calculation of the NLO QCD corrections for the production of three vector bosons at the LHC, namely ZZZ, W+W−Z, W+ZZ, and W+W−W+ production. The virtual corrections are computed using the recently proposed method of reduction at the integrand level (OPP reduction). Concerning the contributions coming from real emission we used the dipole subtraction to treat the soft and collinear divergences. We find that the QCD corrections for these electroweak processes are in the range between 70 and 100 percent. As such they have to be considered in experimental studies of triple vector boson production at the LHC.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/9e7bb03caf2ca6d9aa4ae7a9c3b546cc4658e0db

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In Nuclear and High Energy Physics

Citations in the corpus

Heavy Majorana neutrinos from Wγ fusion at hadron colliders (2014, methodology): “8 is applied [93].”
Direct extraction of one loop rational terms (2008, unknown): “23) C[2] 3;34 (1 + q,2 −,3+,4− ¯) = C [2] 3;12 (1 +,2−,3+,4−), (6.24) C[2] 3;41 (1 + q,2 −,3+,4− ¯ ) = − ih14ih23i[31] 2h13i2[21] , (6.25) X4 k=1 C[2] 3;k(k+1) (1 + q ,2 +,3+,4− ¯q ) = ih12i[31]3 s 23[24] . (6.26) There is only one non-zero bubble coeﬃcient for all the four point fermion amplitudes ”
The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations (2014, unknown): “Triple-vector-boson cross sections at the NLO have been computed in: Zγγ [268, 277], γγW± [278], γZW± [279], WWγ and ZZγ [280], ZWW [281], ZZW and WWW [281, 282], γγγ [283,284], ZZZ [281,285].”
One-loop calculations in quantum field theory: From Feynman diagrams to unitarity cuts (2011, background): “As a final remark we note that other approaches to one-loop calculations beyond traditional Passarino-Veltman reduction and generalized unitarity have have been studied in the literature [33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44], but we will not discuss them in this review.”
Scattering amplitudes from unitarity-based reduction algorithm at the integrand-level (2010, background): “e is small, the input ﬁle that includes the numerators and the list of momenta to be processed by the reduction is fairly simple, and the calculations are feasible with a minimal amount of automation [118,119]. However, even in simple cases, a careful automation reduces the probability of introducin”
Sector Decomposition (2008, background): “Solutions to this problem already have been suggested [32, 41, 42, 58, 59, 62, 64] and are subject to current research.”