Electron-ion collider in China

DP Anderle, V Bertone, X Cao, L Chang, N Chang… - Frontiers of …, 2021 - Springer
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 …

Hadronic molecules

FK Guo, C Hanhart, UG Meißner, Q Wang, Q Zhao… - Reviews of Modern …, 2018 - APS
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 …

Study of the doubly charmed tetraquark

Nature Communications, 2022 - nature.com
Quantum chromodynamics, the theory of the strong force, describes interactions of coloured
quarks and gluons and the formation of hadronic matter. Conventional hadronic matter …

Observation of a Near-Threshold Structure in the Recoil-Mass Spectra in

M Ablikim, MN Achasov, P Adlarson, S Ahmed… - Physical Review Letters, 2021 - APS
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 …

Multiquark resonances

A Esposito, A Pilloni, AD Polosa - Physics Reports, 2017 - Elsevier
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 …

Threshold cusps and triangle singularities in hadronic reactions

FK Guo, XH Liu, S Sakai - Progress in Particle and Nuclear Physics, 2020 - Elsevier
The spectrum of hadrons is the manifestation of color confinement of quantum
chromodynamics. Hadronic resonances correspond to poles of the S-matrix. Since 2003 …

Heavy-quark QCD exotica

RF Lebed, RE Mitchell, ES Swanson - Progress in Particle and Nuclear …, 2017 - Elsevier
This review presents an overview of the remarkable progress in the field of heavy-quark
exotic hadrons over the past 15 years. It seeks to be pedagogical rather than exhaustive …

The hidden-charm pentaquark and tetraquark states

HX Chen, W Chen, X Liu, SL Zhu - Physics Reports, 2016 - Elsevier
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 …

Diquark correlations in hadron physics: Origin, impact and evidence

MY Barabanov, MA Bedolla, WK Brooks… - Progress in Particle and …, 2021 - Elsevier
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 …

Quark flavor phenomenology of the QCD axion

JM Camalich, M Pospelov, PNH Vuong, R Ziegler… - Physical Review D, 2020 - APS
Axion models with generation-dependent Peccei-Quinn charges can lead to flavor-changing
neutral currents, thus motivating QCD axion searches at precision flavor experiments. We …