Rotational states in deformed nuclei: An analytic approach

被引:8
作者
Bentz, W. [1 ]
Arima, A. [2 ]
Enders, J. [3 ]
Richter, A. [3 ,4 ]
Wambach, J. [3 ]
机构
[1] Tokai Univ, Sch Sci, Dept Phys, Hiratsuka, Kanagawa 2591292, Japan
[2] Musashi Univ, Nerima Ku, Tokyo 1768534, Japan
[3] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany
[4] ECT, I-38123 Villazzano, Trento, Italy
关键词
MAGNETIC DIPOLE STRENGTH; SCISSORS MODE; COLLECTIVE MODES; K-PI=1+ MODE; SYMMETRY; SUPERFLUIDITY; DEFORMATION; EXCITATION; ISOTOPES; M1;
D O I
10.1103/PhysRevC.84.014327
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
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 in describing 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 the connection to empirical information.
引用
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页数:17
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