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Xi-Jie Zhan

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Preprint Oct 2026

Amplitude-level NLO predictions for exclusive $J/\psi+\gamma$ production in ultraperipheral collisions

Exclusive $\gamma\gamma\to J/\psi+\gamma$ production is studied in the color-singlet channel at leading order in the heavy-quark velocity. The conventional next-to-leading-order (NLO) result $B+V$, comprising Born production and its interference with the renormalized one-loop amplitude, is compared with $B+V+Q$, where...

Xi-Jie Zhan, Tai-Fu Feng, Xing-Gang Wu · 0 citations

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