Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2011-06-08
Physics
Nuclear Physics
Nuclear Theory
19 pages, 9 figures
Scientific paper
The consequences of the spontaneous breaking of rotational symmetry are investigated in a field theory model for deformed nuclei, based on simple separable interactions. The crucial role of the Ward-Takahashi identities to describe the rotational states is emphasized. We show explicitly how the rotor picture emerges from the isoscalar Goldstone modes, and how the two-rotor model emerges from the isovector scissors modes. As an application of the formalism, we discuss the M1 sum rules in deformed nuclei, and make connection to empirical information.
Arima Akito
Bentz Wolfgang
Enders Joerg
Richter Achim
Wambach Jochen
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