Photoproduction of doubly heavy baryons at future e⁺e^- colliders

2023/10/22 by Xi-Jie Zhan, Xing-Gang Wu, Zhan, Xi-Jie +3 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2310.14315

openalex publication_date 2023/10/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The photoprodution of doubly heavy baryon (Ξ_cc,Ξ_bb,Ξ_bc) is investigated in the context of future high-energy and high-luminosity e⁺e^- colliders. The study incorporates two sources of initial photons, namely the LBS photon and the WWA photon. Alongside the direct photoproduction via the sub-process γ+γ→ Ξ_QQ^' +Q+Q^' (Q^(')=c,b), the resolved photoproduction channels are specifically considered, encompassing the sub-processes γ+ g → Ξ_QQ^' +Q+Q^', g + g → Ξ_QQ^' +Q+Q^', and q + q → Ξ_QQ^' +Q+Q^' with q=u,d,s. Within the framework of non-relativistic QCD, two (cc(bb))-diquark configurations, _3[³S₁] and ₆[¹S₀], and four (bc)-diquark configurations, (bc)_3[³S₁], (bc)₆[¹S₀], (bc)₆[³S₁] and (bc)_3[¹S₀], are considered in the calculations. Numerical results show that the single resolved photoproduction processes provide dominant contributions under certain collision configuration. At the future e⁺e^- colliders, the doubly heavy baryon generated via the photoproduction mechanism is promisingly observable and can be well studied.

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• Doubly heavy hadron production in ultraperipheral collisions

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