论文标题
温伯格操作员对夸克模型中CP-ODD核力量的贡献
Weinberg operator contribution to the CP-odd nuclear force in the quark model
论文作者
论文摘要
温伯格提出的违反三连带相互作用的CP对短期CP-ODD核力量的贡献在非依赖主义夸克模型中评估。我们首先表明，夸克交换过程产生的幼稚领先贡献在谐振组方法中足够短的距离消失，通过考虑Weinberg Operation引起的单环级别Gluon Change CP-ODD CP-ODD CP-ODD InterQuark潜在的潜在，并具有巨大的夸克和Gluons。然后，我们通过评估闭合近似中CP-ODD间断势的Gluonic校正来估计真正的主要贡献。发现所产生的不可约CP-ODD核力与CP - 连短距离核力量的手性旋转产生的CP-ODD核力量相当，在该核力量中，使用QCD总规则计算的CP-ODD质量用作输入。 $^3 $ he核的电偶极矩（EDM）的显式计算产生$ d _ {^3 {\ rm he}}}}^{\ rm（inr）}（w）= - 1.5 \，w \，w \，e $ mev。总计$^3 $ HE EDM，核算固有的核EDM，Pion-Exchange和短距离CP-ODD核力量，为$ D _ {^3 {^3 {\ rm He}}^{\ rm（tot）}（tot）}（tot）}（w）（w）= 20 _ { - 11}}}}}}}^{ - +14}^{+14}^{核EDM。
The contribution of the CP violating three-gluon interaction, proposed by Weinberg, to the short-range CP-odd nuclear force is evaluated in the nonrelativistic quark model. We first show that the naive leading contribution generated by the quark exchange process vanishes at sufficiently short distance within the resonating group method, by considering the one-loop level gluon exchange CP-odd interquark potential induced by the Weinberg operator with massive quarks and gluons. We then estimate the true leading contribution by evaluating the gluonic correction to the CP-odd interquark potential in the closure approximation. It is found that the resulting irreducible CP-odd nuclear force is comparable to that generated by the chiral rotation of the CP-even short-range nuclear force, where the CP-odd mass calculated with QCD sum rules is used as input. The explicit calculation of the electric dipole moment (EDM) of the $^3$He nucleus yields $d_{^3{\rm He}}^{\rm (irr)} (w) = - 1.5 \, w\, e $ MeV. The total $^3$He EDM, accounting for the intrinsic nucleon EDM, the pion-exchange and the short-range CP-odd nuclear force, is $d_{^3{\rm He}}^{\rm (tot)} (w) = 20_{-11}^{+14} \, w\, e $ MeV, with the dominant effect coming from the intrinsic nucleon EDM.
