In the past decade many charmonium-like states were observed experimentally. Especially
those charged charmonium-like Z c states and bottomonium-like Z b states cannot be …

Quantum chromodynamics (QCD), the generally accepted theory for strong interactions,
describes the interactions between quarks and gluons. The strongly interacting particles that …

In this study, we choose the scalar and axialvector diquark operators in the color antitriplet
as the fundamental building blocks to construct four-quark currents and investigate the …

For many decades after the invention of the quark model in 1964 there was no evidence that
hadrons are formed from anything other than the simplest pairings of quarks and antiquarks …

The first full amplitude analysis of B+→ J/ψ ϕ K+ with J/ψ→ μ+ μ-, ϕ→ K+ K-decays is
performed with a data sample of 3 fb-1 of pp collision data collected at s= 7 and 8 TeV with …

In this paper, we restudy the ground state mass spectrum of the diquark–diquark–antiquark-
type uudcc ̄ pentaquark states with the QCD sum rules by carrying out the operator product …

In this paper, we study the scalar-diquark–scalar-diquark–antiquark-type udscc ̄
pentaquark state with the QCD sum rules, the predicted mass MP= 4. 4 7±0. 1 1 GeV is in …

In this article, we construct the diquark–diquark–antiquark type interpolating currents, and
we study the masses and pole residues of the J^ P= 3 2^-JP= 3 2-and 5 2^+ 5 2+ hidden …

The first full amplitude analysis of B+→ J/ψ ϕ K+ with J/ψ→ μ+ μ-, ϕ→ K+ K-decays is
performed with a data sample of 3 fb-1 of pp collision data collected at s= 7 and 8 TeV with …

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 …