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 …

Quantum Chromodynamics, the theory of quarks and gluons, whose interactions can be
described by a local SU (3) gauge symmetry with charges called “color quantum numbers” …

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 …

An amplitude analysis of B-→ J/ψ Λ p¯ decays is performed using 4400 signal candidates
selected on a data sample of pp collisions recorded at center-of-mass energies of 7, 8, and …

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

Chiral symmetry and its spontaneous breaking play an important role both in the light
hadron and heavy hadron systems. The chiral perturbation theory (χ PT) is the low energy …

An amplitude analysis of flavor-untagged B s 0→ J/ψ pp¯ decays is performed using a
sample of 797±31 decays reconstructed with the LHCb detector. The data, collected in …

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 …

We extend the theoretical framework used to describe the T cc state as a molecular state of
D* D and make predictions for the D* D* and D s* D* systems, finding that they lead to …

Inspired by the newly observed P ψ s Λ (4338) and the reported P cs (4459), we indicate the
existence of the molecular-type characteristic mass spectrum for hidden-charm pentaquark …