Skip to main content  ∨   Page logos with links to institutions:
Max Planck Society Max Planck Institute for Nuclear Physics University of Heidelberg
Stored and Cooled Ions Division
Max Planck SocietyMax Planck Institute for Nuclear PhysicsUniversity of Heidelberg Stored and Cooled Ions Division
Superordinated navigation: MPIK Homepage  |  Home  |  Deutsch  |  Sitemap  |  Search  |  Contact
Section navigation:

Contact  Contact

Tel.: +49 6221 516-851
Fax: +49 6221 516-852
Postal Address
Max Planck Institute for Nuclear Physics
P.O. Box 10 39 80
69029 Heidelberg
Visitor Address
Max Planck Institute for Nuclear Physics
Saupfercheckweg 1
Building: Gentner lab,
room 134
69117 Heidelberg


Special Seminars 2008

Time: Monday, 6. October 2008, 16.00 h c.t.
Place: Seminar room Blaum
Speaker: Dr. Yoshitaka Fujita, Department of Physics, Osaka University, Japan
Title: Study of far-stability nuclei by combining mirror Gamow-Teller transitions


Gamow-Teller (GT) transition is one of the most popular nuclear weak processes of spinisospin (στ) type. It is of interest not only in the study of nuclear physics, but also in astrophysics; it plays important roles, for example, in supernova-explosion or nuclear synthesis. Relatively limited information can directly be obtained through the study of weak processes, such as β decay or neutrino induced reactions. However, it was found that (p, n) charge-exchange reactions at intermediate incoming energies (E > 100 MeV) and at 0° could selectively excite GT transitions, that extended the region of excitation energy of the study. With one-order-of-magnitude improvement of the energy resolution in (3He,t) measurements at 140 MeV/nucleon, fine structures of GT excitations, even those of GT giant resonances, can now be studied. Determination of GT transition strengths for pf-shell nuclei with astrophysical interest is discussed [1]. We show that quantum number "isospin" and accurate Q values (masses) of proton-rich nuclei play important roles in such studies.
[1] Y. Fujita et al., Phys. Rev. Lett. 95 (2005) 212501 external link


Time: Tuesday, 23. Sept. 2008, 16.00 h c.t.
Place: Seminar room Blaum
Speaker: Dr. Joseph Formaggio, Massachussetts Institute of Technology, Cambridge/MA, USA
Title: Twilight: Results from the third final phase of SNO


The Sudbury Neutrino Observatory (SNO) has the ability to measure the total flux of all active flavors of neutrinos using the neutral current reaction, whose signature is a neutron. By comparing the rates of the neutral current reaction to the charged current reaction, which only detects electron neutrinos, one can test the neutrino oscillation hypothesis independent of solar models. This talk will present results from the third and final phase of the SNO experiment.