Zobrazeno 1 - 10
of 1 118
pro vyhledávání: '"SCHWENGNER, R."'
Autor:
Savran, D., Isaak, J., Schwengner, R., Massarczyk, R., Scheck, M., Tornow, W., Battaglia, G., Beck, T., Finch, S. W., Fransen, C., Friman-Gayer, U., Gonzalez, R., Hoemann, E., Janssens, R. V. F., Johnson, S. R., Jones, M. D., Kleemann, J., Krishichayan, Little, D. R., O'Donnell, D., Papst, O., Pietralla, N., Sinclair, J., Werner, V., Wieland, O., Wilhelmy, J.
[Background] Photon strength functions are an important ingredient in calculations relevant for the nucleosynthesis of heavy elements. The relation to the photoabsorption cross section allows to experimentally constrain photon strength functions by i
Externí odkaz:
http://arxiv.org/abs/2208.01938
Autor:
Frauendorf, S., Schwengner, R.
Magnetic dipole strength functions are determined for the series of germanium isotopes from $N = Z = 32$ to $N$ = 48 on the basis of a large number of transition strengths calculated within the shell model. The evolution of the strength with increasi
Externí odkaz:
http://arxiv.org/abs/2111.08633
Autor:
Schwengner, R., Massarczyk, R., Schmidt, K., Zuber, K., Beyer, R., Bemmerer, D., Hammer, S., Hartmann, A., Hensel, T., Hoffmann, H. F., Junghans, A. R., Kögler, T., Müller, S. E., Pichotta, M., Turkat, S., Turko, J. A. B., Urlaß, S., Wagner, A.
The dipole strength of the nuclide $^{76}$Ge was studied in photon-scattering experiments using bremsstrahlung produced with electron beams of energies of 7.8 and 12.3 MeV at the $\gamma$ELBE facility. We identified 210 levels up to an excitation ene
Externí odkaz:
http://arxiv.org/abs/2106.12214
Autor:
Turkat, S., Hammer, S., Masha, E., Akhmadaliev, S., Bemmerer, D., Grieger, M., Hensel, T., Julin, J., Koppitz, M., Ludwig, F., Möckel, C., Reinicke, S., Schwengner, R., Stöckel, K., Szücs, T., Wagner, L., Zuber, K.
Publikováno v:
Phys. Rev. C 103, 045805 (2021)
Recent astronomical data have provided the primordial deuterium abundance with percent precision. As a result, Big Bang nucleosynthesis may provide a constraint on the universal baryon to photon ratio that is as precise as, but independent from, anal
Externí odkaz:
http://arxiv.org/abs/2104.06914
Autor:
Goriely, S., Dimitriou, P., Wiedeking, M., Belgya, T., Firestone, R., Kopecky, J., Krticka, M., Plujko, V., Schwengner, R., Siem, S., Utsunomiya, H., Hilaire, S., Peru, S., Cho, Y. S., Filipescu, D. M., Iwamoto, N., Kawano, T., Varlamov, V., Xu, R.
Publikováno v:
Eur. Phys. J. A (2019) 55:172
Photon strength functions describing the average response of the nucleus to an electromagnetic probe are key input information in the theoretical modelling of nuclear reactions. Consequently they are important for a wide range of fields such as nucle
Externí odkaz:
http://arxiv.org/abs/1910.06966
Autor:
Kawano, T., Cho, Y. S., Dimitriou, P., Filipescu, D., Iwamoto, N., Plujko, V., Tao, X., Utsunomiya, H., Varlamov, V., Xu, R., Capote, R., Gheorghe, I., Gorbachenko, O., Jin, Y. L., Renstrøm, T., Stopani, K., Tian, Y., Tveten, G. M., Wang, J. M., Belgya, T., Firestone, R., Goriely, S., Kopecky, J., Krtička, M., Schwengner, R., Siem, S., Wiedeking, M.
Photo-induced reaction cross section data are of importance for a variety of current or emerging applications, such as radiation shielding design and radiation transport analyses, calculations of absorbed dose in the human body during radiotherapy, p
Externí odkaz:
http://arxiv.org/abs/1908.00471
Collective states in cold nuclei are represented by a wave function that assigns coherent phases to the participating nucleons. The degree of coherence decreases with excitation energy above the yrast line because of coupling to the increasingly dens
Externí odkaz:
http://arxiv.org/abs/1907.05569
Publikováno v:
EPJ Web of Conferences 93, 04002 (2015)
A pronounced spike at low energy in the strength function for magnetic radiation (LEMAR) is found by means of Shell Model calculations, which explains the experimentally observed enhancement of the dipole strength. LEMAR originates from statistical l
Externí odkaz:
http://arxiv.org/abs/1907.02641
Publikováno v:
Proceedings of the 6th International Conference on Fission and Properties of Neutron-Rich Nuclei, November 6-12, 2016, Sanibel Island, Florida, USA, eds. J. Hamilton, A. V. Ramayya, p. Talou, World Science Pub. Singapore (2017) p.37-46
The enhancement observed below 2 MeV in the radiative strength function of nuclei near closed shells is explained by shell model calculations as M1 transitions between excited states. In the open-shell a change to a bimodal structure composed of the
Externí odkaz:
http://arxiv.org/abs/1907.00398
Autor:
Naqvi, F., Simon, A., Guttormsen, M., Schwengner, R., Frauendorf, S., Reingold, C. S., Burke, J. T., Cooper, N., Hughes, R. O., Ota, S., Saastamoinen, A.
The gamma-strength functions and level densities in the quasi-continuum of 147;149Sm isotopes have been extracted from particle-coincidences using the Oslo method. The nuclei of interest were populated via (p,d) reactions on pure 148;150Sm targets an
Externí odkaz:
http://arxiv.org/abs/1905.13461