Seminar on Theoretical Nuclear Physics
24.05.11 16:15
Alpha particle condensation in nuclear systems
Peter Schuck (Orsay+Grenoble)
We have re-interpreted the Hoyle state in 12C as an almost independent gas of three alpha particles which move with their c.o.m. in relative S-states, i.e. they are condensed in this state. A specific ansatz for a condensate wave function was used. Simultaneously we conjectured that such condensates should also exist in heavier n alpha self-conjugate nuclei. In 16O the 6-th 0+ state at 15.1 MeV seems to be a strong candidate for an n=4 alpha condensate state. Simultaneously we also studied alpha particle condensation in infinite matter, eventually relevant for compact star physics. I will dwell on the strong differences between quartet and pair condensation.
(Seminarraum II)
Category: Kernphysik