Double heavy-quarkonium production from electron-positron annihilation in the Bethe-Salpeter formalism

2008/04/07 by Xin‐Heng Guo, H. W. Ke, Guo, Xin-Heng +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.0804.0949

openalex publication_date 2008/04/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this work we evaluate the cross section of the process e⁺e^-→ J/ψη_c at energy √(s)≈ 10.6 GeV in the Bethe-Salpeter formalism. To simplify our calculation, the heavy quark limit is employed. Without taking the beyond-leading-order contribution(s) into account, the cross section calculated in this scenario is comparable with the experimental data. We also present our prediction for the cross section of double bottomonium production e⁺e^-→ Υ(1S)η_b for the energy range of √(s)≈ (25 \hbox- 30) GeV which may be experimentally tested, even though there is no facility of this range available at present yet.

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