2 papers
hep-ph2025
Analytical two-loop amplitudes of at factories
Xiang Chen, Xin Guan, Chuan-Qi He +3
In double charmonium production, a long-standing challenge is that the theoretical predictions are not consistent with the measurements at B factories. Within the NRQCD framework,…
hep-ph2025
Region analysis of via a bottom quark loop
Jun-Yao Hou, Jian Wang, Da-Jiang Zhang
The decay is an ideal process to study the structure of next-to-leading power logarithms induced by quarks due to its simple initial and final states. We perform a regi…