论文标题

CP诱导的Deuteron EDM违反了伪内膜的耦合

Deuteron EDM induced by CP violating couplings of pseudoscalar mesons

论文作者

Zhevlakov, Alexey S., Lyubovitskij, Valery E.

论文摘要

我们使用涉及核子的现象学Lagrangian方法来分析Deuteron对Deuteron电偶极子(EDM)和Schiff(SFM)的贡献,该贡献的贡献是贡献的。 Deuteron被认为是质子 - 独立结合状态,其性质由一体和两体力定义。一体力对应于质子和中子的图片,是杜特隆的准无成分,它们对Deuteron EDM(DEDM)的贡献仅仅是质子和中子EDM的总和。迪特隆的两体力是通过核子之间的一膜交换诱导的。它们对DEDM产生贡献,该贡献是使用相应潜在方法估算的。从核子和迪特隆EDM的数值分析中,我们在CP侵入性的HADRONIC耦合和$ \barθ$参数上得出了严格的限制。我们表明,商店环EDM和Jedi Collaborations在$ \ sim 10^{ - 29} $上对Proton和Deuteron EDM的拟议测量结果将在违反CP的参数上提供更严格的上限。

We analyze contributions to the electric dipole (EDM) and Schiff (SFM) moments of deuteron induced by the CP-violating three-pseudoscalar meson couplings using phenomenological Lagrangian approach involving nucleons and pseudoscalar mesons $P=π, K, η, η'$. Deuteron is considered as a proton-neutron bound state and its properties are defined by one- and two-body forces. One-body forces correspond to a picture there proton and neutron are quasi free constituents of deuteron and their contribution to the deuteron EDM (dEDM) is simply the sum of proton and neutron EDMs. Two-body forces in deuteron are induced by one-meson exchange between nucleons. They produce a contribution to the dEDM, which is estimated using corresponding potential approach. From numerical analysis of nucleon and deuteron EDMs we derive stringent limits on CP-violating hadronic couplings and $\barθ$ parameter. We showed that proposed measurements of proton and deuteron EDMs at level of $\sim 10^{-29}$ by the Store Ring EDM and JEDI Collaborations will provide more stringent upper limits on the CP violating parameters.

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