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Analytic representation of all planar two-loop five-point Master Integrals with one off-shell leg

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 Added by Costas Papadopoulos
 Publication date 2020
  fields
and research's language is English




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We present analytic expressions in terms of polylogarithmic functions for all three families of planar two-loop five-point Master Integrals with one off-shell leg. The calculation is based on the Simplified Differential Equations approach. The results are relevant to the study of many $2to 3$ scattering processes of interest at the LHC, especially for the leading-color $W+2$ jets production.



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We describe the calculation of all planar master integrals that are needed for the computation of NNLO QCD corrections to the production of two off-shell vector bosons in hadron collisions. The most complicated representatives of integrals in this class are the two-loop four-point functions where two external lines are on the light-cone and two other external lines have different invariant masses. We compute these and other relevant integrals analytically using differential equations in external kinematic variables and express our results in terms of Goncharov polylogarithms. The case of two equal off-shellnesses, recently considered in Ref. [1], appears as a particular case of our general solution.
131 - S. Abreu , H. Ita , F. Moriello 2020
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