English

Inclusive beauty-charmed baryons decay $\Xi_{bcq} \to \Xi_{ccq} +X$

High Energy Physics - Phenomenology 2026-02-03 v1

Abstract

We investigate the inclusive weak decay ΞbcqΞccq+X\Xi_{bcq} \to \Xi_{ccq} + X (q=u,d,sq=u,d,s) within the framework of the non-relativistic potential quark model. Treating the heavy diquarks Φbc\Phi_{bc} and Φcc\Phi_{cc} as compact color anti-triplet bound states, we calculate the transition form factors via the overlap integral of Schr\"odinger wave functions derived from the Cornell potential. The decay rates for four dominant channels-ΦbcΦcc+cˉs\Phi_{bc} \to \Phi_{cc} + \bar{c}s, ΦbcΦcc+uˉs\Phi_{bc} \to \Phi_{cc} + \bar{u}s, ΦbcΦcc+e/μ+νˉ\Phi_{bc} \to \Phi_{cc} + e/\mu + \bar{\nu}, and ΦbcΦcc+τ+νˉτ\Phi_{bc} \to \Phi_{cc} + \tau + \bar{\nu}_{\tau}-are computed, yielding a total inclusive decay width of Γ(ΞbcqΞccq+X)4.1×1013\Gamma(\Xi_{bcq} \to \Xi_{ccq} + X) \approx 4.1 \times 10^{-13} GeV. We also evaluate the potential background from BcΞcc+XB_c^- \to \Xi_{cc} + X decays, finding a rate of approximately 3.0×1014 3.0 \times 10^{-14} GeV, which is roughly one order of magnitude smaller than the signal process. Our results suggest that the inclusive decay ΞbcΞcc+X\Xi_{bc} \to \Xi_{cc} + X , followed by the well-established Ξcc\Xi_{cc} decay chains, provides a viable discovery channel for the doubly heavy baryon Ξbc\Xi_{bc} at the LHC.

Keywords

Cite

@article{arxiv.2602.00720,
  title  = {Inclusive beauty-charmed baryons decay $\Xi_{bcq} \to \Xi_{ccq} +X$},
  author = {Guo-He Yang},
  journal= {arXiv preprint arXiv:2602.00720},
  year   = {2026}
}