Excited doubly heavy baryons production via Higgs decays

Abstract

Through the interaction of Higgs with heavy quarks in standard model, we have systematically studied and predicted the production of excited doubly heavy baryons based on non-relativistic QCD theory. The decay widths, differential distributions, and major theoretical uncertainties of the excited doubly heavy baryons via the process $H\to ⟨Q{Q}^{\prime }⟩[n]\to {\Xi }_{Q{Q}^{\prime }}+\overline{Q^{\prime }}+\bar{Q}$ are discussed in detail. The spin and color quantum number of the intermediate $P$-wave diquark state $⟨Q{Q}^{\prime }⟩[n]$ can be $⟨cc⟩{[}^1{P}_1{]}_{\bar{3}}$, $⟨cc⟩{[}^3{P}_J{]}_6$, $⟨bc⟩{[}^1{P}_1{]}_{\bar{3}/6}$, $⟨bc⟩{[}^3{P}_J{]}_{\bar{3}/6}$, $⟨bb⟩{[}^1{P}_1{]}_{\bar{3}}$ and $⟨bb⟩{[}^3{P}_J{]}_6$, with $J=0,1,2$. The contributions from all summed $P$-wave states can be about $3.05\%$, $3.23\%$ and $2.19\%$ of the $S$-wave states for the production of ${\Xi }_{cc}$, ${\Xi }_{bc}$ and ${\Xi }_{bb}$, accordingly. Therefore, there will be about 0.41$\times 10^4$ events of ${\Xi }_{cc}$, 6.35$\times 10^4$ events of ${\Xi }_{bc}$ and 0.28$\times 10^4$ events of ${\Xi }_{bb}$ produced per year at the HL-LHC, and a smaller number of events would be produced at the CEPC or ILC but with a cleaner background to be measured by the experiments.

17 pages, 4 figures, 6 tables. Accepted by European Physical Journal C

References in corpus (7)

• A portrait of the Higgs boson by the CMS experiment ten years after the discovery
• A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery
• Relativistic corrections to Higgs boson decays to quarkonia
• Doubly Heavy Baryon Production at A High Luminosity $e^{+}{e}^{-}$ Collider
• Photoproduction of doubly heavy baryon at the ILC
• Doubly Heavy Baryon Production at γγCollider
• Production of doubly heavy baryons via Higgs boson decays

Cited by in corpus (1)

• Further study on the production of P-wave doubly heavy baryons from Z-boson decays