The past seventeen years have witnessed tremendous progress on the experimental and
theoretical explorations of the multiquark states. The hidden-charm and hidden-bottom …

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 …

The last decade has seen a marked shift in how the internal structure of hadrons is
understood. Modern experimental facilities, new theoretical techniques for the continuum …

Using a relativized diquark model Hamiltonian, we calculate the masses of J^ PC= 0^++ J
PC= 0++ ground-state tetraquarks in the following systems: bs ̄ b ̄ s bsb¯ s¯, bb ̄ n ̄ n …

In the present work, the mass spectra of doubly heavy tetraquarks TQQ′ are systematically
investigated in a relativized quark model. The four-body systems including the Coulomb …

According to the classification of the quark model, the hadrons going beyond three-quark
baryon and quark-antiquark meson pictures are called exotic hadrons. Many new hadrons …

A bstract In two recent papers, we used the hadro-quarkonium model to study the properties
of hidden-charm and bottom tetraquarks and pentaquarks. Here, we extend the previous …

We discuss selected and important features of hadronic molecules as one of several
promising forms of exotic hadrons near thresholds. Using examples of $ D {\bar {D}}^{*} …

We systematically investigate the stability of the doubly heavy tetraquark states Q_1Q_2 ̄ q
_3 ̄ q _4 Q 1 Q 2 q¯ 3 q¯ 4 (Q= c Q= c and b, q= uq= u, d and s) within the framework of the …

Motivated by recent experimental evidence for apparent ccc¯ c¯ states by LHCb, CMS and
ATLAS, we consider how the mass spectrum and decays of such states can be used to …