Fully-beauty tensor tetraquark
Abstract
Parameters of the fully-beauty tensor tetraquark T=bbb̅b ̅ are computed using QCD sum rule method. The mass m and coupling $ Λ$ of this state are evaluated by means of two-point sum rule approach. Prediction m=(18530 ± 86) MeV for the mass demonstrates that T is stable against decays to pairs of ηb ηb and ΥΥ mesons. But it transforms to conventional particles due to b̅b annihilations to light quarks $\overline{q} q $ and $ \overline{s}s$ followed by creation of mesons B(∗)+B( ∗)−, $ B^{(\ast)0}\overline{B}^{(\ast)0}$ and Bs(∗)0B̅ s(∗)0. Partial width of these decay channels are calculated by invoking technical tools of three-point sum rule method. The latter allows us to estimate strong couplings at relevant tetraquark-meson-meson vertices and, hence, a width of the process under consideration. Our prediction $ Γ=(48 \pm 6)~\mathrm{MeV}$ along with the mass of this state can be valuable for experimental studies of all-heavy resonances.
Related
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- The bb̅cc̅ Fully Heavy Tetraquark at the LHC and the FCC: Multimodal Fragmentation and Observability
BibTeX
@misc{agaev2026fullybeauty,
title = {{Fully-beauty tensor tetraquark}},
author = {S. S. Agaev and K. Azizi and H. Sundu},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2607.09354},
eprint = {2607.09354},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.09354},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Fully-beauty tensor tetraquark
AU - S. S. Agaev
AU - K. Azizi
AU - H. Sundu
PY - 2026
DA - 2026/10/13
PB - arXiv
DO - 10.48550/arxiv.2607.09354
UR - https://arxiv.org/abs/2607.09354
AB - Parameters of the fully-beauty tensor tetraquark T=bbb̅b ̅ are computed using QCD sum rule method. The mass m and coupling $ Λ$ of this state are evaluated by means of two-point sum rule approach. Prediction m=(18530 ± 86) MeV for the mass demonstrates that T is stable against decays to pairs of η_b η_b and ΥΥ mesons. But it transforms to conventional particles due to b̅b annihilations to light quarks $\overline{q} q $ and $ \overline{s}s$ followed by creation of mesons B^(∗)+B^( ∗)−, $ B^{(\ast)0}\overline{B}^{(\ast)0}$ and B_s^(∗)0B̅ _s^(∗)0. Partial width of these decay channels are calculated by invoking technical tools of three-point sum rule method. The latter allows us to estimate strong couplings at relevant tetraquark-meson-meson vertices and, hence, a width of the process under consideration. Our prediction $ Γ=(48 \pm 6)~\mathrm{MeV}$ along with the mass of this state can be valuable for experimental studies of all-heavy resonances.
ER -