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Analysis of the hidden-bottom tetraquark mass spectrum with the QCD sum rules
High Energy Physics - Phenomenology · Submitted 25 Mar 2019
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim In calculations, we observe that the scalar diquark states, the axialvector diquark states and the axialvector components of the tensor diquark state are all good diquarks in building the lowest tetraquark states.
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The abstract, sentence by sentence
In this article, we extend our previous work to study the mass spectrum of the ground state hidden-bottom tetraquark states with the QCD sum rules in a systematic way. The predicted hidden-bottom tetraquark masses can be confronted to the experimental data in the future to diagnose the nature of the $Z_b$ states. In calculations, we observe that the scalar diquark states, the axialvector diquark states and the axialvector components of the tensor diquark state are all good diquarks in building the lowest tetraquark states.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | In this article, we extend our previous work to study the mass spectrum of the ground state hidden-bottom tetraquark states with the QCD sum rules in a systematic way. | contribution 1.00 | 0.84 | 0.08 | asserted 0.86 |
| s1 | The predicted hidden-bottom tetraquark masses can be confronted to the experimental data in the future to diagnose the nature of the $Z_b$ states. | future work 0.85 | 0.22 | 0.18 | hedged possibility 0.91 |
| s2 | In calculations, we observe that the scalar diquark states, the axialvector diquark states and the axialvector components of the tensor diquark state are all good diquarks in building the lowest tetraquark states. | result 0.90 | 0.93 | 0.36 | asserted 1.00 |
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The paper
Original abstract
In this article, we extend our previous work to study the mass spectrum of the ground state hidden-bottom tetraquark states with the QCD sum rules in a systematic way. The predicted hidden-bottom tetraquark masses can be confronted to the experimental data in the future to diagnose the nature of the $Z_b$ states. In calculations, we observe that the scalar diquark states, the axialvector diquark states and the axialvector components of the tensor diquark state are all good diquarks in building the lowest tetraquark states.
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References
How the literature uses it
4 arXiv papers cite this in 4 sentences
Papers citing it · 1 sentence without a confident label
Uses its data or values 1 paper
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In the numerical analysis following input parameters are used: $m_u=m_d=0$, $m_b = 4.18^+0.03_-0.02$GeV, $m_Z_b = 10652.2±1.5$MeV [ref] , $λ_Z_b=(2.12 ±0.31) ×10^-1$ GeV$^5$ [ref] ,
Analysis of the $Z_b(10650)$ state based on electromagnetic properties · Numerical analysis and conclusion · 1.00
Cites it as background 2 papers
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Accordingly, on the theoretical side, intensive investigations on the structure of $Z_b$ states have been done, in which the observed $Z_b^±(10610)$ and $Z_b^±(10650)$ have been explained as tetraquark states [ref] , molecular states [ref] , threshold cusps [ref] , or re-scattering effects [ref] , etc.
Theoretical study on low-lying hidden-bottom and double-bottom tetraquark states · Introduction · 0.98
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These approaches include the relativistic quark model based on the quasipotential approach in QCD [ref] , the non-relativistic potential model [ref] , the spinless Salpeter equation [ref] , the relativistic four-body Faddeev-Yakubovsky equation [ref] , the dynamical diquark model [ref] , the homogeneous Lippmann-Schwinger integral equation [ref] , the effective Hamiltonian in the adopted chromomagnetic interaction model [ref] , the chiral quark model [ref] , the sum rules [ref] , the relativistic four-quark equations in the framework of coupled-channel formalism [ref] , the constituent quark model [ref] , among others.
$\lambda$ and $\rho$ Regge trajectories for hidden bottom and charm tetraquarks $(Qq)(\bar{Q}\bar{q}')$ · Introduction · 0.87
What it cites · 3 sentences without a confident label
Uses the method or tool of 1 paper
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The tensor diquark states have both $J^P=1^+$ and $1^-$ components, we introduce the four vector $t^μ=(1,0⃗)$ and project out the $1^+$ and $1^-$ components explicitly, [equation] where $σ^t_μν =i/2[γ^t_μ, γ^t_ν]$, $σ^v_μν =i/2[γ^v_μ, γ^t_ν]$, $γ^v_μ= γ·t t_μ$, $γ^t_μ=γ_μ-γ·t t_μ$ [ref] .
Scalar or vector tetraquark state candidate: $Z_c(4100)$ · Introduction · 0.87
Cites as background 1 paper
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For more literatures on the $Z_b$ states, one can consult the old review [ref] and the recent review [ref] .
Pentaquark and Tetraquark states · Introduction · 1.00
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