AI 中文总结
研究带守恒暗荷的轴子型粒子，构建其有效拉格朗日量，探讨相互作用的现象学意义、暗物质相关问题，确定有效场论高阶算符及暗对称群类型，给出紫外完备化示例，且仅考虑无暗规范相互作用情况。
AI 中文摘要
已有的五维轴子型粒子（ALP）有效拉格朗日量描述了无标准模型（SM）电荷的具有近似平移对称性的标量与SM场的相互作用，且隐含假定ALP在暗区的任何对称性下都不带电。本文去除此假设，对于带守恒暗荷的ALP，不存在与SM粒子的五维有效相互作用。我们构建了源于一般破缺模式的带暗荷ALP的有效拉格朗日量，表明最低阶平移对称有效拉格朗日量仅包含两个将ALP与SM粒子耦合的六维算符。我们探讨了这些相互作用的与模型无关的现象学意义以及宇宙中观测到的暗物质是否可能由带暗荷的ALP组成的问题，确定了有效场论的高阶算符及能产生带暗荷ALP的暗对称群类型，还给出了导致低能带暗荷ALP的紫外完备化的示例。带暗荷ALP情形可通过包含暗规范相互作用推广，本文仅考虑无此类相互作用的情况。
英文摘要
The established $d=5$ ALP effective Lagrangian describes the interaction of scalars with approximate shift-symmetry which carry no Standard Model (SM) charges with SM fields. It implicitly assumes that ALPs are not charged under any symmetries of the dark sector. In this paper, we remove this assumption. For ALPs carrying conserved dark charges, no $d=5$ ALP effective interaction to SM particles is possible. We build the effective Lagrangian for these darkly charged ALPs stemming from a general breaking pattern, and we show that the lowest-order shift-symmetric effective Lagrangian contains just two $d=6$ operators coupling ALPs to SM particles. We explore the model-independent phenomenological implications of these interactions, as well as the question of whether the dark matter observed in the Universe may consist of darkly charged ALPs. We identify higher order operators of the effective field theory, and determine which types of dark symmetry groups can seed darkly charged ALPs. Illustrative examples of ultraviolet completions which result in darkly charged ALPs at low-energies are provided as well. The darkly-charged ALP scenario can be generalized by including dark gauge interactions. In this paper, we have considered only the case with no such interactions.
Comments47 pages, 13 figures
