Conveners
Few-body Systems
- Vadim Lensky (JGU Mainz)
- Elżbieta Stephan (Institute of Physics, University of Silesia)
The electromagnetic form factors play a crucial role in characterizing the charge and magnetization distribution inside a nucleus. They are essential for determining nuclear charge radii and the differential cross section of electron-nucleus scattering, and providing important corrections to Lamb shifts in ordinary and muonic atoms. Achieving a precise and accurate theoretical description of...
The femtoscopy method has been recently used in high-energy collisions at the LHC to study the residual strong interaction for several hadron pairs.
In pp and p-Pb collisions, particles are emitted at relative distances of the order of 1 fm. At such distances, the produced hadrons are sensitive to the effect of their mutual strong interaction, resulting in a correlation signal in the...
The name 'stars' describes the specific configurations of the reactions with three particles in the output channel, where the momenta of the reaction products are of the equal norm and thus form an equilateral triangle in the centre-of-momentum frame. If the triangle is perpendicular to the beam momentum, the configuration is called the Space Star (SST). The measurements focused on the stars...
The GlueX Collaboration at Jefferson Lab has used linearly polarized photons to observe $p\overline{p}$ and, for the first time, $\Lambda \overline{\Lambda}$ and $p\overline{\Lambda}$ photoproduction from thresholds up to $E_\gamma = 11.6$ GeV. The goal is to examine and compare the reaction mechanisms for both strange and non-strange quark-pair production. A phenomenological model that...
The measurements of $\pi\Sigma$ mass distributions in the $\gamma p\rightarrow K^{+}\pi\Sigma$ photoproduction reaction [1] probe the energy region of the $\Lambda$(1405) resonance, just below the $\bar{K}N$ threshold, and provide new challenges for the theoretical models of $\pi\Sigma - \bar{K}N$ coupled channels interactions. Adopting the photoproduction model presented in [2, 3] and the...
Recent measurement of coherent $\pi^0$ photoproduction on Pb lead to a most accurate determination of the neutron skin, constraining nuclear matter Equation of State (EoS) at around $\rho\sim 1\rho_0$. A natural next step is elucidating the nuclear EoS at higher densities to tune our understanding of the most violent process in the Universe - neutron star mergers. It was demonstrated that at...
