Work

Application of Bayesian statistics to the sector of decay constants in three-flavour χPT

Year: 2026

Type: conference-paper

Abstract: The sector of decay constants of the octet of light pseudoscalar mesons in the framework of 'resummed' $SU(3)$ chiral perturbation theory is investigated. A theoretical prediction for the decay constant of $\eta$-meson is compared to a range of available determinations. Using a Bayesian statistical approach, constraints on the low energy coupling constants $L_4^r$ and $L_5^r$, as well as higher order remainders to the decay constants $F_K$ and $F_\eta$, are extracted from the most recent experimental and lattice QCD inputs for the values of the decay constants.

Source: International Workshop on Chiral Dynamics (CD)

Authors: Jaroslav Říha, Marian Kolesar

Institutions: Charles University, Ruhr University Bochum

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W7139116125

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