Physics of high-K isomers with Pfaffian

When?

Monday 21 March 2011, 11:00

Where?

30 BB 03 Physics Seminar Room

Open to:

Staff, Students

Speaker:

Makito Oi, Senshu University, Tokyo

Thanks to the newly developed Storage Ring in GSI, the study of high-K isomers has entered a new chapter. An advantage of SR is to be able to measure unexpectedly long-lived isomers, on the contrary to the conventional technique by measuring time-of-flight with gating. Existence of long-life high-K isomers in the neutron-rich and heavy-mass region implies a new possibility in interpreting the r-process nucleosynthesis in supernova explosions, particularly in the N=126 waiting points. The r-proces path can be disturbed by the presence of long-lived isomers. The theoretical tools required for this new investigation is the quantization technique of many-body HFB states, so as to calculate transition probabilities.

Recently, new mathematical approaches were pointed out to be very effective in the quantization: Pfaffian, Fermion coherent states, and Grassmann numbers. With these new powerful "weapons", I will show my plan how to clear this new level of a many-body "game".