1.

Analysis of the Vector and Axialvector $QQ\bar {Q}\bar {Q}$ Tetraquark States with QCD Sum Rules
/ ZhiGang Wang ; ZunYan Di
In this article, we construct the axialvectordiquarkaxialvectorantidiquark type currents to study both the vector and axialvector $QQ\bar{Q}\bar{Q}$ tetraquark states with the QCD sum rules, and obtain the masses $M_{Y(cc\bar{c}\bar{c},1^{+})} =6.05\pm0.08\,\rm{GeV}$, $M_{Y(cc\bar{c}\bar{c},1^{})} =6.11\pm0.08\,\rm{GeV}$, $M_{Y(bb\bar{b}\bar{b},1^{+})} =18.84\pm0.09\,\rm{GeV}$, $M_{Y(bb\bar{b}\bar{b},1^{})} =18.89\pm0.09\,\rm{GeV}$. [...]
Published in Acta Physica Polonica B 50 (2019) 13351348
10.5506/APhysPolB.50.1335
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2.

Analysis of the hiddenbottom tetraquark mass spectrum with the QCD sum rules
/ Wang, ZhiGang
In this article, we extend our previous work to study the mass spectrum of the ground state hiddenbottom tetraquark states with the QCD sum rules in a systematic way. [...]
Published in EPJC 79 (2019) 489
10.1140/epjc/s1005201970196
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3.

Analysis of the $D{\overline{D}}^{\u204e}K$ System with QCD Sum Rules
/ Wang, ZhiGang ; Di, ZunYan
In this article, we construct the color singletsingletsinglet interpolating current with $I\left({J}^{P}\right)=\left(\mathrm{3}/\mathrm{2}\right)\left({\mathrm{1}}^{}\right)$ to study the $D{\overline{D}}^{\u204e}K$ system through QCD sum rules approach. [...]
Published in Advances in High Energy Physics 2019 (2019) 8958079
10.1155/2019/8958079
arXiv:1901.05196
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4.

Strong decays of the Y (4660) as a vector tetraquark state in solid quarkhadron duality
/ Wang, ZhiGang
In this article, we choose the [sc]P[s¯c¯]A[sc]A[s¯c¯]P type tetraquark current to study the hadronic coupling constants in the strong decays Y(4660)→J/ψf0(980) , ηcϕ(1020) , χc0ϕ(1020) , DsD¯s , Ds∗D¯s∗ , DsD¯s∗ , Ds∗D¯s , ψ′π+π , J/ψϕ(1020) with the QCD sum rules based on solid quarkhadron quality. [...]
Published in EPJC 79 (2019) 184
10.1140/epjc/s1005201967085
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5.

Analysis of the mass and width of the X (4140) as axialvector tetraquark state
/ Wang, ZhiGang ; Di, ZunYan
In this article, we construct both the [sc]T[s¯c¯]A+[sc]A[s¯c¯]T type and [sc]T[s¯c¯]V[sc]V[s¯c¯]T type axialvector currents with JPC=1++ to study the mass of the X (4140) with the QCD sum rules. [...]
Published in EPJC 79 (2019) 72
10.1140/epjc/s1005201965968
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6.

Analysis of the vector tetraquark states with Pwaves between the diquarks and antidiquarks via the QCD sum rules
/ Wang, ZhiGang
In this article, we introduce a Pwave between the diquark and antidiquark explicitly to construct the vector tetraquark currents, and study the vector tetraquark states with the QCD sum rules systematically, and obtain the lowest vector tetraquark masses up to now. [...]
Published in EPJC 79 (2019) 29
10.1140/epjc/s100520196568z
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7.

Lowest vector tetraquark states: Y (4260 / 4220) or Zc(4100)
/ Wang, ZhiGang
In this article, we take the Y (4260 / 4220) as the vector tetraquark state with JPC=1 , and construct the Cγ5⊗∂↔μ⊗γ5C type diquarkantidiquark current to study its mass and pole residue with the QCD sum rules in details by taking into account the vacuum condensates up to dimension 10 in a consistent way. [...]
Published in EPJC 78 (2018) 933
10.1140/epjc/s1005201864175
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8.

Analysis of the Axialvector Doubly Heavy Tetraquark States with QCD Sum Rules
/ Wang, ZhiGang
In this article, we construct the axialvectordiquarkscalarantidiquarktype currents to interpolate the axialvector doubly heavy tetraquark states, and study them with the QCD sum rules in details by carrying out the operator product expansion up to the vacuum condensates of dimension~10..
Published in Acta Physica Polonica B 49 (2018) 17811800
10.5506/APhysPolB.49.1781
arXiv:1708.04545
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9.

Analysis of the doubly heavy baryon states and pentaquark states with QCD sum rules
/ Wang, ZhiGang
In this article, we study the doubly heavy baryon states and pentaquark states with the QCD sum rules by carrying out the operator product expansion up to the vacuum condensates of dimension 7 and 13 respectively in a consistent way. [...]
Published in EPJC 78 (2018) 826
10.1140/epjc/s1005201863004
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10.

Vector tetraquark state candidates: Y (4260 / 4220), Y (4360 / 4320), Y (4390) and Y (4660 / 4630)
/ Wang, ZhiGang
In this article, we construct the C⊗γμC and Cγ5⊗γ5γμC type currents to interpolate the vector tetraquark states, then carry out the operator product expansion up to the vacuum condensates of dimension10 in a consistent way, and obtain four QCD sum rules. [...]
Published in EPJC 78 (2018) 518
10.1140/epjc/s1005201859965
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