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Investigation of the photoproduction of bottom-charmed baryons within NRQCD

Juan-Juan Niu1,* and Hong-Hao Ma2,1,†

  • *Contact author: niujj@gxnu.edu.cn
  • †Contact author: honghao.ma@unesp.br
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Phys. Rev. D 114, 054057 – Published 29 September, 2026

DOI: https://doi.org/10.1103/k7ym-ynsf

Abstract

We present a further theoretical study of the orbital P-wave bottom-charmed baryon within the framework of nonrelativistic QCD, considering both the direct photoproduction channel γ+γ→Ξbc+c¯+b¯ and the resolved photoproduction channel γ+g→Ξbc+c¯+b¯. At future linear colliders, ILC and CLIC, the initial photons can be emitted from the laser backscattering and then the parton gluon can be emitted from the photon. The formation of Ξbc can be modeled in two steps: a compact diquark state ⟨bc⟩[n] is formed first and subsequently captures a light quark from the vacuum to hadronize into the baryon Ξbc. The color and spin quantum number [n] of the ⟨bc⟩ diquark can be [S31]3¯/6, [S10]3¯/6, [P11]3¯/6, or [P3J]3¯/6 with J=0, 1, 2. Using three benchmark collision energies and an illustrative integrated luminosity, we analyze the cross sections, differential distributions, and the estimated produced events of the Ξbc baryon. For the conservative h6=0 baseline, the combined P-wave contribution amounts to approximately 8% of the combined S-wave rate at three considered collision energies and is therefore non-negligible.

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Phys. Rev. D 114, 054057– Published 29 September, 2026
  • Received 2 February 2026
  • Revised 21 July 2026
  • Accepted 4 September 2026
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