首页> 外文期刊>Physical review, D >Kaon CP violation and neutron EDM in the minimal left-right symmetric model
【24h】

Kaon CP violation and neutron EDM in the minimal left-right symmetric model

机译:Kaon CP违规和中子EDM在最小的左右对称模型中

获取原文
           

摘要

Within the minimal left-right (LR) symmetric model we revisit the predictions for the kaon C P violating observables ? and ? ′ in correlation with the neutron electric dipole moment. We perform a complete study of the cross constraints on the model parameters, phases and the M W R scale, considering the two cases of extended parity or charge conjugation as LR discrete symmetries, together with the possible presence of a Peccei-Quinn symmetry. We discuss in particular two scenarios: whether the Standard Model saturates the experimental value of ? ′ / ? or whether new physics is needed, still an open issue after the recent lattice results on the QCD penguin matrix elements. Within the first scenario, we find no constraints on the LR scale in the charge-conjugation case while in the parity case we show that M W R can be as low as 13?TeV. On the other side, the request that new physics contributes dominantly to ? ′ implies strong correlations among the model parameters, with an upper bound of M W R < 8 – 100 ? ? TeV depending on tan β in the case of charge conjugation and a range of M W R ? 7 – 45 ? ? TeV in the parity setup. Both scenarios may be probed directly at future colliders and only indirectly at the LHC.
机译:在最小的左右(LR)对称模型中,我们重新审视Kaon C P违反可观察者的预测?和 ? '与中子电偶极力矩相关。我们对模型参数,阶段和M W r级上的交叉约束进行了完整的研究,考虑到LR离散对称的两个衰退或电荷缀合的情况以及可能存在Peccei-Quinn对称性的情况。我们特别讨论两种情况:标准模型是否使实验值饱和? '/?或者是否需要新物理学,仍然是在最近的QCD企鹅矩阵元素上的格子结果后开放问题。在第一个场景中,我们在充电缀合案件中没有关于LR刻度的限制,而在奇偶校验情况下,我们表明M W r可以低至13个tev。在另一边,新物理学的要求贡献占主导地位? '暗示模型参数之间的强烈相关性,具有M W R <8 - 100的上限?还TEV取决于TANβ在电荷共轭和一系列M W R的情况下? 7 - 45?还tev在奇偶设置。这两种情景都可以直接在未来的煤机上探讨,仅在LHC间接探测。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号