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Analytic Continuation of Massless Two-Loop Four-Point Functions

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arxiv hep-ph/0207020 v1 pith:XCRI56BW submitted 2002-07-01 hep-ph

classification hep-ph
keywords productiontwo-loopanalyticcontinuationexternalfour-pointfunctionsmassless
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We describe the analytic continuation of two-loop four-point functions with one off-shell external leg and internal massless propagators from the Euclidean region of space-like $1\to 3$ decay to Minkowskian regions relevant to all $1\to 3$ and $2\to 2$ reactions with one space-like or time-like off-shell external leg. Our results can be used to derive two-loop master integrals and unrenormalized matrix elements for hadronic vector-boson-plus-jet production and deep inelastic two-plus-one-jet production, from results previously obtained for three-jet production in electron--positron annihilation.

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Cited by 2 Pith papers

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  1. Second-order QCD corrections to event shape distributions in deep inelastic scattering

    hep-ph 2019-09 accept novelty 7.0 of 10

    The NNLO QCD corrections to DIS event shape distributions and their mean values are computed for the first time, reducing scale uncertainties and improving the description of H1 and ZEUS data.

  2. Higher-Order Corrections to Higgs Boson Amplitudes with Full Quark Mass Dependence in Quantum Chromodynamics

    hep-ph 2019-08 conditional novelty 7.0 of 10

    The thesis computes three-loop and two-loop QCD corrections to Higgs processes with full quark mass dependence, including a new analytic series-expansion treatment of elliptic two-loop master integrals for Higgs-plus-...

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