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Non-planar master integrals for the production of two off-shell vector bosons in collisions of massless partons

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arxiv 1404.5590 v2 pith:AWUUAD6B submitted 2014-04-22 hep-ph

Non-planar master integrals for the production of two off-shell vector bosons in collisions of massless partons

Fabrizio Caola , Johannes M. Henn , Kirill Melnikov , Vladimir A. Smirnov This is my paper
classification hep-ph
keywords bosonscollisionsintegralsproductiondescribemasslessmasterneeded
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present the calculation of all non-planar master integrals that are needed to describe production of two off-shell vector bosons in collisions of two massless partons through NNLO in perturbative QCD. The integrals are computed analytically using differential equations in external kinematic variables and expressed in terms of Goncharov polylogarithms. These results provide the last missing ingredient needed for the computation of two-loop amplitudes that describe the production of two gauge bosons with different invariant masses in hadron collisions.

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Cited by 2 Pith papers

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    First numerical evaluation of planar two-loop helicity amplitudes for W-boson plus four partons using finite-field reduction and sector decomposition on a subset of master integrals.

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    All nine planar three-loop four-point integral families for two massive external legs are cast into canonical differential equations and evaluated numerically, completing the set needed for leading-colour N3LO diboson...