Year: 2026
Type: preprint
Abstract: We investigate theoretical uncertainties arising from the choice of the top-quark mass scheme in Higgs boson pair production via gluon fusion. First, we implement the resummation of the top-quark mass logarithms obtained for the $gg\to HH$ amplitude at high energy and study its phenomenological impact on cross sections. Second, we formulate a threshold-aware treatment of the top-quark mass based on short-distance mass definitions, combining an MSR description near the top-pair threshold with an $\overline{\mathrm{MS}}$ treatment in the high-energy regime. Within the dynamical prescription, the combined mass-scheme variation of the SM inclusive NLO cross section at $\sqrt{s}=14$ TeV is $^{+5.2\%}_{-0.2\%}$. This estimate provides an alternative to the conventional OS-$\overline{\mathrm{MS}}$ envelope.
Source: arXiv (Cornell University)
Institutions: University of Bern, Brookhaven National Laboratory
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G241279073, G4354484304, G5765906131
OpenAlex ID: W7222005323