Many observables at the B factories are connected with branching fractions, CP asymmetries and polarization of exclusive, hadronic B decays. They provide access to the flavour and spin structure of the weak interaction, but a straightforward interpretation is usually obscured by the strong interaction. In technical terms, the difficult (long-distance) part of the strong interaction resides in t...

We use lattice QCD to investigate some topics in strong interaction phenomenol-ogy which are usually related to soft pomeron exchange. These include hadronic cross-sections at high energies and diffractive scattering at HERA. Some numerical results are presented in the framework of the Landshoff-Nachtmann pomeron model, and strategies for further studies are discussed.

The Coulomb interaction between the two protons is included in the calculation of three-nucleon hadronic and electromagnetic reactions using screening and renormalization approach. Calculations are done using integral equations in momentum space. The reliability of the method is demonstrated. The Coulomb effect on observables is discussed.

Quantum field theory is used to describe the contribution of possible new QCD vacuum replica to hadronic processes. This sigma-like new state has been recently shown to be likely to appear for any realistic four-quark interaction kernel as a consequence of chiral symmetry. The local operator creating the replica vacuum state is constructed explicitly. Applications to physical processes are outl...

Angular distributions of $\phi$ meson decay amplitudes $e^+e^-$ and $K^+K^-$ channels are computed using both specific interaction Lagrangians simple arguments relying on angular momentum conservation. Based the obtained results, we assess methods to experimentally disentangle longitudinal transverse polarization modes discuss advantages disadvantages employing either leptonic or hadronic for t...

We employ the Monte Carlo particle collision code DPMJET3.04 to determine the multiplicity spectra of various secondary particles (in addition to π 0 's) with γ's as the final decay state, that are produced in cosmic-ray (p's and α's) interactions with the interstellar medium. We derive an easy-to-use γ-ray production matrix for cosmic rays with energies up to about 10 PeV. This γ-ray productio...

Hyperon resonances are becoming an extremely useful tool allowing the study of the properties of hadronic fireballs made in heavy ion collisions. Their yield, compared to stable particles with the same quark composition, depends on hadronization conditions. The resonance’s short lifetime makes them ideal probes of the fireball chemical freeze-out mechanisms. An analysis of resonance abundance i...

The dynamics of partons, hadrons and strings in relativistic nucleus-nucleus collisions is analyzed within the novel Parton-Hadron-String Dynamics (PHSD) transport approach, which is based on a dynamical quasiparticle model for partons (DQPM) matched to reproduce recent lattice-QCD results including the partonic equation of state in thermodynamic equilibrium. Scalarand vector-interaction densit...

The nature of confinement and the dynamics of the phase transition from hadronic to partonic mattre is an outstanding question of todays physics. The dynamics of partons, hadrons and strings in relativistic nucleus-nucleus collisions is analyzed within the novel Parton-Hadron-String Dynamics (PHSD) transport approach, which is based on a dynamical quasiparticle model for partons (DQPM) matched ...

The challenges with the molecular model of multiquark systems are identification hadronic molecules and interaction between two color neutral hadrons. We study di-hadronic proposed potential as s-wave one boson exchange along Screen Yukawa-like potential, arrived proposal that within molecule hadrons experience dipole-like interaction. present is continuation our previous \cite{arxiv-Rathaud-pe...