Pentaquark and tetraquark states
The past seventeen years have witnessed tremendous progress on the experimental and
theoretical explorations of the multiquark states. The hidden-charm and hidden-bottom …
theoretical explorations of the multiquark states. The hidden-charm and hidden-bottom …
Hadronic molecules
A large number of experimental discoveries especially in the heavy quarkonium sector that
did not meet the expectations of the until then very successful quark model led to a …
did not meet the expectations of the until then very successful quark model led to a …
Multiquark resonances
Multiquark resonances are undoubtedly experimentally observed. The number of states and
the amount of details on their properties have been growing over the years. It is very recent …
the amount of details on their properties have been growing over the years. It is very recent …
Three ways to decipher the nature of exotic hadrons: Multiplets, three-body hadronic molecules, and correlation functions
In the past two decades, a plethora of hadronic states beyond the conventional quark model
of qq ̄ mesons and qqq baryons have been observed experimentally, which motivated …
of qq ̄ mesons and qqq baryons have been observed experimentally, which motivated …
The hidden-charm pentaquark and tetraquark states
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 …
those charged charmonium-like Z c states and bottomonium-like Z b states cannot be …
A review of the open charm and open bottom systems
Since the discovery of the first charmed meson in 1976, many open-charm and open-bottom
hadrons were observed. In 2003 two narrow charm-strange states $ D_ {s0}^{\ast}(2317) …
hadrons were observed. In 2003 two narrow charm-strange states $ D_ {s0}^{\ast}(2317) …
Hadronic molecules in decays
There are eighteen possibly existing D (*) D¯(*), D (*) K¯(*), and D (*) D s (*)-hadronic
molecular states. We construct their corresponding interpolating currents and calculate their …
molecular states. We construct their corresponding interpolating currents and calculate their …
Towards exotic hidden-charm pentaquarks in QCD
Inspired by P c (4380) and P c (4450) recently observed by LHCb, a QCD sum rule
investigation is performed, by which they can be identified as exotic hidden-charm …
investigation is performed, by which they can be identified as exotic hidden-charm …
[HTML][HTML] Hunting for exotic doubly hidden-charm/bottom tetraquark states
We develop a moment QCD sum rule method augmented by fundamental inequalities to
study the existence of exotic doubly hidden-charm/bottom tetraquark states made of four …
study the existence of exotic doubly hidden-charm/bottom tetraquark states made of four …
QCD sum rules approach to the X, Y and Z states
In the past decade, due to the experimental observation of many charmonium-like states,
there has been a revival of hadron spectroscopy. In particular, the experimental observation …
there has been a revival of hadron spectroscopy. In particular, the experimental observation …