Conveners
Parallel session B6: Hyperon-Nucleon Interactions 3
- Wolfram Weise (Technical University of Munich)
All five KEK and J-PARC two-body $\Xi^-$+$^A$Z $\to$ twin-$\Lambda$ capture events in light emulsion nuclei are consistent with Coulomb-assisted $1p_{\Xi^-}$ nuclear states. The underlying $\Xi$-nuclear potential is strongly attractive with nuclear-matter depth $V_{\Xi}\geq$ 20 MeV [1], considerably larger than suggested by recent LQCD, femtoscopy and EFT theoretical studies.
We argue that...
The phenomenon of neutron halos was discovered in light-mass nuclei at the limit of nuclear existence. Historically, $^{11}$Li was the first halo nucleus discovered from interaction cross section measurements by Tanihata et al. Understood as a universal feature of bound baryonic systems, halos are also predicted in hypernuclei, while no direct experimental evidence has been obtained so far....
Electroproduction of hypernuclei is an object of interest since information on properties of the bound system of nucleons and a hyperon gives important insight onto the structure of nuclear matter and provides a stringent test of the hyperon-nucleon interactions. We will present a technique (distorted-wave impulse approximation) of computing the cross sections in electroproduction of...
New models for photo- and electroproduction of kaons on the proton were constructed utilizing new experimental data from LEPS, GRAAL, and particularly CLAS collaborations. The higher spin nucleon (spin-3/2 and spin-5/2) and hyperon (spin-3/2) resonances were included using a consistent formalism and they were found to play an important role in the data description. In these analyses, we paid...
