Correlations in hypernuclear matter

We investigate short-range correlations in nuclear and hypernuclear matter. Self-energies due to short-range correlations and their influence on the nucleon and Λ -hyperon spectral functions are described in an approach accounting for a realistic treatment of mean-field dynamics and a self-consistently derived quasi-particle interaction. Landau-Migdal theory is used to derived the short-range interaction from a phenomenological Skyrme energy density functional, subtracting the long-range pionic contributions to the nucleonic spectral functions. We discuss our results for different hyperon-baryon ratios to show the influence of strangeness on the correlations in hypernuclear matter.     

A multi-coincident study of the quasimolecular 1s σ radiation and its angular distribution in 40 MeV Ni-Ni collisions

The production mechanism of quasimolecular (MO) x-rays in 40 MeV Ni-Ni collisions was investigated in a multi-parameter experiment. Impact parameter dependent MO x-ray production probabilities were determined. The study of the angular distribution of the emitted radiation allowed the determination of impact parameter dependent alignment parameters for this process. Triple coincident MO x-ray — NiK x-ray — scattered projectile data provided for the determination of state selective MO x-ray production probabilities. The results are compared to dynamical calculations describing the time dependent evolution of the relevant quasimolecular states and the radiative couplings among them.     

Bemerkungen zur Struktur einer linearen perfekten nirgends dichten Punktmenge

Ohne ZusammenfassungDie nachfolgenden Untersuchungen sind in engem Anschluß an gemeinsam von Herrn E. Jacobsthal und mir gemachte Bemerkungen zur Struktur linearer Punktmengen entstanden, die in den Sitzungsberichten der Berliner Mathematischen Gesellschaft Jhrg. XIV, S. 121–129, gleichzeitig mit dieser Arbeit erscheinen.