论文标题
揭开smeft中左的根
Uncovering the Root of LEFT in SMEFT
论文作者
论文摘要
在电动行量表以下的能源下，Baryon Number $ B $和Lepton Number $ L $ L $违反过程对于识别标准模型的紫外线扩展的性质至关重要。在低能测量中，可以使用低能效率理论的理论框架（左）计算出紫外线理论的烙印。使用$ b，\; l $和操作员的尺寸作为分类特征，我们构建了一个网络连接左侧的运算符类，并使用标准模型有效理论（SMEFT）。遵循该网络的链接，可以将左有效运算符描述的触点交互嵌入到SMEFT的链接中，这使我们能够限制紫外线理论的可能实现。反过来，这可以有助于优先考虑低能测量值，以全面测试所有类别的左和SMEFT操作员。
At energies below the electroweak scale, baryon number $B$ and lepton number $L$ violating processes are of significant importance in identifying the nature of UV extensions of the Standard Model. The imprint of UV theories on low-energy measurements can be calculated to a high accuracy using the theoretical framework of the Low Energy Effective Theory (LEFT). Using $B,\; L$ and the operators' dimensions as classifying characteristics, we construct a network connecting operator classes of the LEFT with the Standard Model Effective Theory (SMEFT). Following the links of this network, the contact interactions described by the effective operators of LEFT can be unambiguously embedded into those of SMEFT, which enables us to constrain the possible realisations of UV theories. In turn, this can help to prioritise low energy measurements with the aim of comprehensively testing all classes of LEFT and SMEFT operators.
