The Beijing Spectrometer (BESIII) at the Beijing Electron-Positron Collider (BEPC-II) is a multi-purpose hadron physics experiment optimized in the tau-charm energy region. Its world-record samples of vector charmonia such as J/Psi, Psi(3686) and Psi(3773), as well as energy scans between 2.0 GeV and 4.95 GeV have opened new avenues in hadron spectroscopy and structure. Furthermore, recently...
We study the impact of recent findings regarding non-perturbative corrections in the three-jet region to e+ e− hadronic observables, by performing a simultaneous fit of the strong coupling constant alpha_s and the non-perturbative parameter alpha_0 . We extend the calculation of these power corrections, already known for thrust and C-parameter, to other e+ e− hadronic observables. We find that...
We summarise recent theoretical results on the QCD phase diagram and the properties of hadrons at finite temperature and chemical potential based on a combination of lattice QCD and Dyson-Schwinger equations. We discuss the location of the critical end point, the quality of extrapolations from imaginary to real chemical potential and the silver blaze property of mesons with different quantum...
In the last years, several exotic states were observed in the charm sector; such particles cannot be interpreted as regular baryons or mesons and are thought to be either quark bags or molecular states. To unveil their nature, it is crucial to experimentally constrain the strong force that governs the interaction between the charm hadrons and other hadrons, for instance, via the measurement of...
Core-collapse supernovae are the spectacular deaths of massive stars. These cosmic explosions are the birthplace of neutron stars and black holes. They synthesize many elements and emit copious amounts of neutrinos. One of the key ingredients in modeling core-collapse supernovae is the nuclear equation of state (EOS). The EOS affects many aspects of core-collapse supernovae, such as the...
In the study of atomic nuclei, nuclear charge radii provide intriguing physics insights into the evolution of nuclear structure far away from stability and pairing effects [1,2]. Furthermore, charge radii ,have been used as experimental input for the determination of V$_{ud}$ of the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix from superallowed nuclear $\beta$-decays [3]. In the...
