Speaker
Bertis Rasco
(Oak Ridge National Laboratory)
Description
Virtual gamma-gamma decay was first predicted by M. Goeppert-Mayer in 1929 and is the decay mode for atomic transitions from the 2S to 1S states in hydrogen. In nuclear physics it has been observed in both 0+ to 0+ decays of 16O, 40Ca, 72Ge, and 90Zr and the M4 decay from the 662 keV level in 137mBa. The single particle behavior of level widths and for virtual gamma-gamma decays are well documented. When comparing these two decays for low spin transitions, such as M1 decays, there are regions where the virtual gamma-gamma decay competes with single particle decay widths. An estimate of this competition for dipole transitions will be offered and some possible implications will be discussed.
| Contribution category | Theory |
|---|---|
| Presenter status | Faculty/Staff |
Author
Bertis Rasco
(Oak Ridge National Laboratory)