Scattering is an important phenomenon which is observed in systems ranging from the micro- to macroscale. In the context of nuclear reaction theory, the Heidelberg approach was proposed and later demonstrated to be applicable to many chaotic scattering systems. To model the universal properties, stochasticity is introduced to the scattering matrix on the level of the Hamiltonian by using random...

Nitrogen hydrides are at the root of the nitrogen chemistry in interstellar space. The detailed modeling of their gas phase formation, however, requires the knowledge of nuclear-spin branching ratios for chemical reactions involving multiprotonated species. We investigate in this work the nuclear-spin selection rules in both exothermic and near thermoneutral ion–molecule reactions involved in t...

Resonance Raman spectra and absolute Raman scattering intensities of the Franck-Condon coupled vibrational modes of the accessory bacteriochlorophylls (B) in the photosynthetic reaction center from Rb. sphaeroides have been obtained with excitation in their 800 nm Qy absorption band. Although the relative Raman intensities are unchanged when the temperature is reduced from 278 to 95 K, the abso...

A successful unified description of ¯ p nuclear interactions near E = 0 is achieved using a ¯ p optical potential within a folding model, V opt ∼ ¯ v * ρ, where a ¯ pp potential ¯ v is folded with the nuclear density ρ. The potential ¯ v fits very well the measured ¯ pp annihilation cross sections at low energies (p L < 200 MeV/c) and the 1s and 2p spin-averaged level shifts and widths for the ...

Analyses of bound systems and low-energy scattering experiments give clear evidence of a departure from charge symmetry in the nuclear interaction. Furthermore, this effect could be enhanced in a nuclear medium thereby solving the Nolen-Schiffer anomaly observed in mirror nuclei. Since the extraction of the n-n scattering parameters is tied to the theoretical analysis of particular nuclear reac...

The processing of experimental data for the photon induced reactions on 238 U and 232 Th investigated by quasi-monochromatic γ-ray beams (produced in Laser Compton scattering at NewSUBARU facility) needs prediction prompt neutron spectra. They are obtained using reliable models systematics, i.e. most employed well validated approach probable fragmentation with input parameters provided a recent...

Abstract Theories of reactions of composite nuclei simplify considerably at energies of several 100 MeV/nucleon. Here Glauber methods provide a quantitative microscopic framework with a clear delineation of nucleon-nucleon scattering and nuclear structure inputs. However further approximations, tested for stable nuclei, are inappropriate for few-body halo nuclei with implications for analyses o...

Scattering experiments are indispensable for the study of classical and quantum systems. In the Heidelberg approach, universal features are addressed by assuming that the reaction zone is fully quantum chaotic. Although it stems from nuclear physics, it later on turned out to be applicable to a large variety of systems on different scales, including classical wave systems. For a long time, the ...