论文标题
在重变形核中破坏SU(3)光谱退化
Breaking SU(3) spectral degeneracies in heavy deformed nuclei
论文作者
论文摘要
在物理系统光谱中,通过归化性在自然界中表现出对称性。在相互作用的玻色子模型的框架中描述时,相关的质子(中子)对近似为玻色子,则基态带没有对称伴侣,而第一个激发beta beta和gamma频段之间的变性因三体和//四个body术语而破坏了。在代理SU(3)模型的框架中,其中存在近似的SU(3)对称对称性,相同的三体和/或四体操作员用于打破基态谱带和第一个激发伽玛频段之间的堕落。在后一种情况下,指出了独立于任何自由参数的实验可访问量。
Symmetries are manifested in nature through degeneracies in the spectra of physical systems. In the case of heavy deformed nuclei, when described in the framework of the Interacting Boson Model, within which correlated proton (neutron) pairs are approximated as bosons, the ground state band has no symmetry partner, while the degeneracy between the first excited beta and gamma bands is broken through the use of three-body and/or four-body terms. In the framework of the proxy-SU(3) model, in which an approximate SU(3) symmetry of fermions is present, the same three-body and/or four-body operators are used for breaking the degeneracy between the ground state band and the first excited gamma band. Experimentally accessible quantities being independent of any free parameters are pointed out in the latter case.