Author

Xu-Dong Huang

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Preprint Aug 2026

Next-to-leading-order QCD corrections to $S$- and $P$-wave heavy quarkonium decay to $l^{+}l^{-} \gamma$

In this work, we comprehensively study the total and differential decay widths of the radiative Dalitz decays $H \to l^+l^-\gamma$ up to QCD next-to-leading order (NLO) accuracy within the framework of NRQCD factorization. Our calculation includes the decays of $S$-wave states ($\eta_c, \eta_b$) and the $P$-wave triple...

Zhi-Guo He, Xu-Dong Huang · 0 citations

Preprint Oct 2026

Violation and Restoration of Probability Positivity in Perturbative Quantum Field Theory: From Quantum Mechanics to Quantum Chromodynamics

In quantum mechanics the modulus square of the wave function is the probability of an event --- positivity is self-evident. Quantum field theory corresponds to quantum mechanics one-to-one: the wave function corresponds to the matrix element, so the probability of a process should be the modulus square of the matrix el...

Bin Gong, Xu-Dong Huang, Jian-Xiong Wang et al. · 0 citations