论文标题
三核系统的电偶极矩
Electric dipole moments of three-nucleon systems in the pionless effective field theory
论文作者
论文摘要
我们计算三核子系统的电偶极力矩（EDM），该系统在无效的有效田间理论中的领先顺序上。考虑到永久性质子和中子EDM以及由CP-ODD核子核子相互作用产生的两体贡献产生的一体贡献。忽略了库仑的交互，我们考虑了triton和$ {}^3 $ HE，并且还以Wigner-Su（4）对称限制进行了调查。我们还计算了电偶极外形，并从数值上发现电偶极外形在Wigner限制中的动量依赖性是总体常数（且数值准确性），与电荷形构想的动量依赖性相同。
We calculate the electric dipole moments (EDMs) of three-nucleon systems at leading order in pionless effective field theory. The one-body contributions that arise from permanent proton and neutron EDMs and the two-body contributions that arise from CP-odd nucleon-nucleon interactions are taken into account. Neglecting the Coulomb interaction, we consider the triton and ${}^3$He, and also investigate them in the Wigner-SU(4) symmetric limit. We also calculate the electric dipole form factor and find numerically that the momentum dependence of the electric dipole form factor in the Wigner limit is, up to an overall constant (and numerical accuracy), the same as the momentum dependence of the charge form factor.
