3 papers
hep-ph2025
Optimized QCD two-loop correction to exclusive double production at B factories
Wen-Long Sang, Feng Feng, Yu Jia +3
We report the calculation of the process up to next-to-next-to-leading order (NNLO) at a center-of-mass (CM) energy of GeV. We employ an imp…
physics.comp-ph2025
Iterated Agent for Symbolic Regression
Zhuo-Yang Song, Zeyu Cai, Shutao Zhang +8
Symbolic regression (SR), the automated discovery of mathematical expressions from data, is a cornerstone of scientific inquiry. However, it is often hindered by the combinatorial…
hep-ph2024
A tale of Bethe logarithms: leptonic widths of and Lamb shift
Yu Jia, Jichen Pan
The rare annihilation decays of -wave spin-triplet quarkonia into lepton pair have to proceed via two-photon intermediate state, which are plagued with the infrared divergence s…