The past decades witnessed the golden era of hadron physics. Many excited open heavy
flavor mesons and baryons have been observed since 2017. We shall provide an updated …

Lepton scattering is an established ideal tool for studying inner structure of small particles
such as nucleons as well as nuclei. As a future high energy nuclear physics project, an …

Conventional, hadronic matter consists of baryons and mesons made of three quarks and a
quark–antiquark pair, respectively,. Here, we report the observation of a hadronic state …

Quantum chromodynamics, the theory of the strong force, describes interactions of coloured
quarks and gluons and the formation of hadronic matter. Conventional hadronic matter …

There has recently been a dramatic renewal of interest in hadron spectroscopy and charm
physics. This renaissance has been driven in part by the discovery of a plethora of …

The first observation of exotic states with a new quark content cc¯ us¯ decaying to the J/ψ
K+ final state is reported with high significance from an amplitude analysis of the B+→ J/ψ ϕ …

The quark model was formulated in 1964 to classify mesons as bound states made of a
quark–antiquark pair, and baryons as bound states made of three quarks. For a long time all …

The spectrum of hadronic molecules composed of heavy–antiheavy charmed hadrons has
been obtained in our previous work. The potentials are constants at the leading order, which …

We report a study of the processes of e+ e-→ K+ D sD* 0 and K+ D s*-D 0 based on e+ e-
annihilation samples collected with the BESIII detector operating at BEPCII at five center-of …

Many efforts have been made to reveal the nature of the overabundant resonant structures
observed by the worldwide experiments in the last two decades. Hadronic molecules attract …