Conveners
Tuesday Afternoon (20min talks + 10min discussions)
- Andrei Alexandru (The George Washington University)
We study two types of excited vector mesons, radially excited vector mesons characterised by quantum numbers $n \hspace{0.15cm} ^{2s+1}L_J = 2 ^{3}S_{1}$ and angular-momentum excited vector mesons with quantum numbers $n \hspace{0.15cm}^{2s+1}L_J = 1 ^{3}D_{1}$. We evaluate the decays of these mesons into pseudoscalar and ground-state vector mesons. By using an effective relativistic QFT...
Glueballs, i.e. bound state of gluons, were predicted to exist in the very early days of QCD. This expectation has been confirmed by numerous lattice calculations. However, glueballs could not yet be experimentally identified. While in the low-energy sector (below 2.6 GeV) some candidates exist, in the high-mass sector (between 2.6-5 GeV) the situation is not satisfactory. In this talk,...
Masses and decays of excited scalar and pseudoscalar $\bar{q}q$ states are studied in depth within the Extended Linear Sigma Model (eLSM). The model also contains ground-state scalar, pseudoscalar, vector and axial-vector mesons. The main objective is to investigate the hypothesis that the $f_0(1790)$ resonance, observed a decade ago by the BES Collaboration and recently by LHCb, represents an...
Here we will discuss a recent dispersive determination of pion-kaon scattering and the use of analytic methods to extract the parameters of the poles associated to light strange resonances, without assuming a specific model.
The experimental investigation of hadrons is an unique way to understand how QCD behaves at the low-energy non-perturbative scale, where the bulk of the Universe visible mass exists. The search for "exotic" states, in particular, could permit to access further degrees of freedom of the theory that are characteristics of these particles, behind those of the Constituent Quark Model that well...
