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arxiv: hep-ph/9912425 · v1 · submitted 1999-12-20 · ✦ hep-ph

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Lifetimes of doubly heavy baryons

A.K. Likhoded (IHEP) , A.I. Onishchenko (ITEP)
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classification ✦ hep-ph
keywords heavybaryonsdoublylifetimesapproximationsdetailedelementsestimate
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We perform a detailed investigation of total lifetimes for the doubly heavy baryons $\Xi_{QQ'}$, $\Omega_{QQ'}$ in the framework of operator product expansion over the inverse heavy quark mass, whereas, to estimate matrix elements of operators obtained in OPE, approximations of nonrelativistic QCD are used.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. New Predictions for the Lifetimes of Doubly Heavy Baryons and the $B_c$ Meson

    hep-ph 2026-05 unverdicted novelty 5.0

    Updated lifetime predictions for doubly heavy baryons and B_c meson with NNLO and NLO corrections in MS-bar, kinetic, and Upsilon mass schemes, including new hierarchies for bc states.

  2. Study of doubly heavy baryon lifetimes

    hep-ph 2026-04 unverdicted novelty 5.0

    Lifetimes of Xi_cc++, Xi_cc+, Omega_cc+ are (2.67 ± 0.94, 0.47 ± 0.08, 1.79 ± 0.62) × 10^{-13} s and for Xi_bb0, Xi_bb-, Omega_bb- are (0.75 ± 0.11, 0.92 ± 0.15, 0.93 ± 0.15) × 10^{-12} s, with W-exchange driving larg...