2 papers
hep-ph2023
Predictions for feed-down enhancements at the and thresholds via the triangle and box singularities
Ming-Xiao Duan, Lin Qiu, Xi-Zhe Ling +1
We demonstrate that triangle singularity (TS) and box singularity (BS) mechanisms can produce unique narrow enhancements at the and thresholds in the in…
hep-ph2023
On the widths of and
Yin Cheng, Lin Qiu, Qiang Zhao
Based on the assignment of the first radial excitation states of the isoscalar pseudoscalars for and , we investigate their three-body and four-body decay c…