Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC

By D. Florian, J. Mazzitelli. Journal of High Energy Physics, 2015

180 citations recorded by the source corpus.

We perform the threshold resummation for Higgs pair production in the dominant gluon fusion channel to next-to-next-to-leading logarithmic (NNLL) accuracy. The calculation includes the matching to the next-to-next-to-leading order (NNLO) cross section obtained in the heavy top-quark limit, and results in an increase of the inclusive cross section up to 7% at the LHC with centre-of-mass energy Ecm = 14 TeV, for the choice of factorization and renormalization scales μF = μR = Q, being Q the invariant mass of the Higgs pair system. After the resummation is implemented, we estimate the theoretical uncertainty from the perturbative expansion to be reduced to about ±5.5%, plus ∼ 10% from finite top-mass effects. The resummed cross section turns out to be rather independent of the value chosen for the central factorization and renormalization scales in the usual range (Q/2, Q).

Subfields: Biomedical Engineering, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/fc2790d19b70686d2fd208ab8710cb5d5af93f69

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Citations in the corpus

Physics at a 100 TeV pp collider: Higgs and EW symmetry breaking studies (2016, methodology): “To achieve the correct higher-order value of the integrated cross-section, the LO signal sample is rescaled to match the NNLO+NNLL inclusive calculation [202, 207].”
Collider physics at the precision frontier (2020, methodology): “fs. [303{307], where Ref. [307] contains fully dierential results. The results of Ref. [306] also contain an expansion in 1=m2 t, soft gluon resummation has been performed at NNLO+NNLL level in Ref. [308]. The calculation of Ref. [307] has been combined with results including the top quark mass depe”
Les Houches 2017: Physics at TeV Colliders Standard Model Working Group Report (2017, methodology): “HH: The N(2)LOQCD corrections were first computed in the infinite top mass limit [271] and have since been improved with threshold resummation to NLO+NNLL [272] and NNLO+NNLL [273].”
Les Houches 2015: Physics at TeV Colliders Standard Model Working Group Report (2016, methodology): “HH: The N(2)LOQCD corrections were originally computed in the infinite top mass limit [146] and have since been improved with threshold resummation to NNLL [147].”