Associated production of a top pair and a Z boson at the LHC to NNLL accuracy

Abstract

We study the resummation of soft gluon emission corrections to the production of a top-antitop pair in association with a Z boson at the Large Hadron Collider to next-to-next-to-leading logarithmic accuracy. By means of an in-house parton level Monte Carlo code we evaluate the resummation formula for the total cross section and several differential distributions at a center-of-mass energy of 13 TeV, and we match these calculations to next-to-leading order results.

21 pages, 7 figures. arXiv admin note: text overlap with arXiv:1611.00049

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• Measurements of the inclusive and differential production cross sections of a top-quark-antiquark pair in association with a $Z$ boson at $\sqrt{s}=13$ TeV with the ATLAS detector
• Associated $t\bar{t}H$ production at the LHC: theoretical predictions at NLO+NNLL accuracy
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• Hadronic production of top-quark pairs in association with a pair of leptons in the POWHEG BOX framework
• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
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