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 decade many charmonium-like states were observed experimentally. Especially
those charged charmonium-like Z c states and bottomonium-like Z b states cannot be …

The Pythia program can be used to generate high-energy-physicsevents', ie sets of outgoing
particles produced in the interactions between two incoming particles. The objective is to …

This manual describes the Pythia event generator, the most recent version of an evolving
physics tool used to answer fundamental questions in particle physics. The program is most …

We show that mesons—from the π to the Υ—can be described in a unified quark model with
chromodynamics. The key ingredient of the model is a universal one-gluon-exchange-plus …

A highly significant structure is observed in the Λ c+ K-π+ π+ mass spectrum, where the Λ c+
baryon is reconstructed in the decay mode p K-π+. The structure is consistent with …

In recent years our understanding of neutron stars has advanced remarkably, thanks to
research converging from many directions. The importance of understanding neutron star …

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 …

Pythia version 6 represents a merger of the Pythia 5, Jetset 7 and SPythia programs, with
many improvements. It can be used to generate high-energy-physics 'events', ie sets of …

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 …