Analytical two-loop amplitudes of $e^{+} e^{-} \longrightarrow \boldsymbol{J} / \boldsymbolψ+\boldsymbolη_c$ at $B$ factories

Fuente: arXiv

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Bibliographic Details
Main Authors:	Chen, Xiang, Guan, Xin, He, Chuan-Qi, Ma, Yan-Qing, Wang, Jian, Zhang, Da-Jiang
Format:	Preprint
Published:	2025
Subjects:	High Energy Physics - Phenomenology High Energy Physics - Theory
Online Access:	Acceder al recurso
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Internet

https://arxiv.org/abs/2508.20777