Theoretical Division, Los Alamos National Laboratory (LANL), Los Alamos, New Mexico 87545, USA.
Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
Phys Rev Lett. 2019 Aug 2;123(5):051801. doi: 10.1103/PhysRevLett.123.051801.
We investigate the interplay between the high- and low-energy phenomenology of CP-violating interactions of the Higgs boson with gauge bosons. For this purpose, we use an effective field theory approach and consider all dimension-six operators arising in so-called universal theories. We compute their loop-induced contributions to electric dipole moments and the CP asymmetry in B→X_{s}γ and compare the resulting current and prospective constraints to the projected sensitivity of the LHC. Low-energy measurements are shown to generally have a far stronger constraining power, which results in highly correlated allowed regions in coupling space-a distinctive pattern that could be probed at the high-luminosity LHC.
我们研究了希格斯玻色子与规范玻色子的 CP 破坏相互作用的高能和低能现象学之间的相互作用。为此,我们使用有效场论方法,并考虑了所谓的通用理论中出现的所有六维算子。我们计算了它们对电偶极矩和 B→X_{s}γ中的 CP 不对称性的环诱导贡献,并将得到的当前和潜在的限制与 LHC 的预期灵敏度进行了比较。低能测量通常具有更强的约束能力,这导致在耦合空间中出现高度相关的允许区域——这是一种独特的模式,可以在高亮度 LHC 中进行探测。