AI 中文总结
该研究提出结合原子结构理论的新电子-电子相互作用计算方法，利用含时Hartree-Fock方法改进多体修正，通过原子电偶极矩和PNC跃迁提取耦合强度约束，排除特定耦合-质量比范围，更新了铯PNC跃迁振幅的标准模型贡献计算。
AI 中文摘要
我们提出一种结合原子结构理论计算新电子-电子相互作用的通用方法，包含主导多体效应，并提取宇称不守恒情形的约束。该方法适用于任意媒介子质量，通过含时Hartree-Fock方法纳入新相互作用的多体修正，改进了此前的计算。随后通过分别与实验原子电偶极矩、宇称不守恒（PNC）跃迁对比，提取标量-赝标量、矢量-轴矢量相互作用的耦合强度约束。对于后者，我们的计算排除了媒介子质量m_X~10 MeV以上，耦合-质量比|g^e_V g^e_A|/m_X^2大于10^-11 MeV^-2的情况，覆盖了此前未受约束的质量区域。我们还更新了标准模型中电子-电子Z^0交换对铯6s-7s PNC跃迁振幅E_PNC的贡献计算。
英文摘要
We present a general approach for calculating new electron-electron interactions with atomic structure theory, include dominant many-body effects, and extract bounds for parity-odd cases. The procedure is valid for any mediator mass and improves previous calculations by including many-body corrections to the new interaction through the time-dependent Hartree-Fock method. Bounds on coupling strengths are then extracted for scalar-pseudoscalar and vector-axial vector interactions by comparison with experimental atomic electric dipole moments and parity non-conserving (PNC) transitions respectively. In the latter case, our calculations rule out any coupling-mass ratio |g^e_V g^e_A|/m_X^2 greater than 10^-11 MeV^-2 above m_X ~ 10 MeV, covering a previously unconstrained mass region. We also report an updated calculation of the regular (Standard Model) electron-electron Z^0 exchange contribution to the 6s-7s PNC transition amplitude E_PNC in cesium.
Comments9 pages, 4 figures
