3 papers
hep-ph2021
QCD Analysis of Near-Threshold Photon-Proton Production of Heavy Quarkonium
Yuxun Guo, Xiangdong Ji, Yizhuang Liu
The near threshold photo or electroproduction of heavy vector quarkonium off the proton is studied in quantum chromodynamics. Similar to the high-energy limit, the production ampli…
hep-ph2021
Novel twist-three transverse-spin sum rule for the proton and related generalized parton distributions
Yuxun Guo, Xiangdong Ji, Kyle Shiells
We derive a new twist-3 partonic sum rule for the transverse spin of the proton, which involves the well-know quark spin structure function , the less-studied…
hep-th2018
Quantum Standard Clocks in the Primordial Trispectrum
Xingang Chen, Wan Zhen Chua, Yuxun Guo +3
We calculate the primordial trispectrum of curvature perturbation in quasi-single field inflation, with general sound speeds for both the inflaton and the massive scalar. Special a…