Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HK: Fachverband Physik der Hadronen und Kerne

HK 61: Nukleare Astrophysik

HK 61.2: Vortrag

Freitag, 21. März 2014, 14:30–14:45, HZ 4

Measurement of the ²⁰N(γ,n)¹⁹N cross section by Coulomb dissociation — •Marko Röder^1,2, Daniel Bemmerer¹, Thomas E. Cowan^1,2, Zoltán Elekes^1,3, Tobias Reinhardt^2,1, Andreas Wagner¹, and Kai Zuber² for the R3B collaboration — ¹Helmholtz-Zentrum Dresden-Rossendorf (HZDR) — ²Institut für Kern- und Teilchenphysik, Technische Universität Dresden — ³MTA Atomki, Debrecen, Hungary

In the astrophysical r-process, many neutron-rich nuclei are involved. The reactions on these exotic nuclei can only be studied with radioactive ion beams. One example is the ¹⁹N(n,γ)²⁰N reaction that is included in a neutrino-driven wind scenario. Using ²⁰N as a beam, this reaction was studied at the GSI Fragment Separator (FRS) in inverse kinematics via Coulomb dissociation in the S393-experiment. The relativistic neutrons were observed by the LAND-detector. I will give final results of the analysis, including the cross section of the ²⁰N(γ,n)¹⁹N reaction, the γ-ray spectrum of excited ¹⁹N from this reaction, and also some data on the ²¹N(γ,n)²⁰N reaction.

— Supported by GSI F&E (DR-ZUBE), NupNET NEDENSAA (05 P09 CRFN5) and Plattform für Detektortechnologie und -systeme.