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hep-ph2025
Study of electron-positron annihilation into four pions within chiral effective field theory in the low energy region
Jia-Yu Zhou, Hao-Xiang Pan, Ling-Yun Dai
In this paper, we employ chiral effective field theory to study the process of electron-positron annihilation into four pions in the low energy region within GeV…
hep-ph2023★ 1 cited
Bayesian method for fitting the low-energy constants in chiral perturbation theory
Hao-Xiang Pan, De-Kai Kong, Qiao-Yi Wen +1
The values of the low-energy constants (LECs) are very important in the chiral perturbation theory. This paper adopts a Bayesian method with the truncation errors to globally fit e…