Measuring Hadronic Higgs Boson Branching Ratios at Future Lepton Colliders

Autor:	Knobbe, Max, Krauss, Frank, Reichelt, Daniel, Schumann, Steffen
Rok vydání:	2023
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Experiment
Druh dokumentu:	Working Paper
Popis:	We present a novel strategy for the simultaneous measurement of Higgs-boson branching ratios into gluons and light quarks at a future lepton collider operating in the Higgs-factory mode. Our method is based on template fits to global event-shape observables, and in particular fractional energy correlations, thereby exploiting differences in the QCD radiation patterns of quarks and gluons. In a constrained fit of the deviations of the light-flavour hadronic Higgs-boson branching ratios from their Standard Model expectations, based on an integrated luminosity of $5\,\text{ab}^{-1}$, we obtain $68\%$ confidence level limits of $\mu_{gg}=1 \pm 0.08$ and $\mu_{q\bar{q}}<2.3$. Comment: 12 pages, 6 figures, 2 tables
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2306.03682 Zobrazit plný text záznamu View this record from Arxiv