论文标题
QCD轴耦合的选择性增强
Selective enhancement of the QCD axion couplings
论文作者
论文摘要
我们提出了一种机制，其中QCD轴突耦合与核，光子或电子可以选择性地增强而无需增加轴突质量。我们特别关注轴突核子耦合，通常被认为是主要独立于模型的耦合，我们展示了如何构建亲核轴向模型。我们讨论了亲核轴对天体物理学，宇宙学和实验室搜索的含义。我们提出了一个具有增强轴承耦合的模型与核子和光子的模型，该模型可为最近从附近的中子星体观察到的硬X射线的异常发射提供极好的拟合，我们认为可以在即将出版的Axion-Search搜索实验中对这种情况进行彻底测试。
We present a mechanism wherein the QCD axion coupling to nucleons, photons, or electrons, can be enhanced selectively without increasing the axion mass. We focus in particular on the axion-nucleon couplings, that are generally considered to be largely model-independent, and we show how nucleophilic axion models can be constructed. We discuss the implications of a nucleophilic axion for astrophysics, cosmology and laboratory searches. We present a model with enhanced axion couplings to nucleons and photons that can provide an excellent fit to the anomalous emission of hard X-rays recently observed from a group of nearby neutron stars, and we argue that such a scenario can be thoroughly tested in forthcoming axion-search experiments.
