Year: 2025
Type: article
Abstract: A bstract Using invariant-mass threshold resummation, we compute the invariant-mass distribution and the total cross section for $$ t\overline{t}t\overline{t} $$ t t ¯ t t ¯ production at the LHC with centre-of-mass energy of 13 . 6 TeV at NLL ′ accuracy. This accuracy includes next-to-leading logarithmic contributions together with relative 𝒪( α s ) non-logarithmic terms present in the threshold limit. We match the NLL ′ results to NLO in QCD and to complete NLO with electroweak corrections. We find that the inclusion of NLL ′ soft-gluon corrections significantly reduces the size of the theoretical uncertainties and greatly improves the convergence of the predictions when considering various choices of renormalisation and factorisation scales.
Source: Journal of High Energy Physics
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4415535210