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DOE OSTI · 1887811

The analytic two-loop soft function for leading-jet p T

Abreu, Samuel·Gaunt, Jonathan R.·Monni, Pier Francesco·Szafron, Robert
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Abstract

We present the calculation of the two-loop soft function for the transverse momentum distribution of the leading jet produced in association with any colour-singlet system (e.g. a Higgs or a Z boson). This constitutes a central ingredient for the resummation of the above distribution as well as the jet-vetoed cross section at the next-to-next-to-next-to-leading logarithmic order, both of which play an important role in the precision physics programme at the Large Hadron Collider. The calculation is performed in soft-collinear effective theory with an appropriate regularisation of the rapidity divergences that occur in the phase-space integrals. We obtain analytic results by employing an exponential regulator and by taking a Laurent expansion in the jet radius R . All expressions are presented as supplementary material attached to this article.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSfactorizationhigher-order perturbative calculationsjets and jet substructurerenormalization groupresummation

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Abreu, Samuel, Gaunt, Jonathan R., Monni, Pier Francesco, Szafron, Robert. 2022-08-26. The analytic two-loop soft function for leading-jet p T. https://doi.org/10.1007/jhep08(2022)268

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