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

被引：0
作者：
Kolesar, Marian [1 ]
Riha, Jaroslav [1 ]
机构：
[1] Charles Univ Prague, Inst Particle & Nucl Phys, Fac Math & Phys, V Holesovickach 2, Prague 18000, Czech Republic
来源：
EUROPEAN PHYSICAL JOURNAL PLUS | 2024年 / 139卷 / 01期
关键词：
PI-PI; QCD; FLUCTUATIONS; 3-PI;
D O I：
10.1140/epjp/s13360-023-04809-1
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The sector of decay constants of the octet of light pseudoscalar mesons in the framework of 'resummed' (3)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. Compatibility of these determinations with the latest fits of the SU(3) low energy coupling constants is discussed. 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.
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页数：17
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