论文标题
在黑暗中搜索：寻找黑暗光子
Searching in the dark: the hunt for the dark photon
论文作者
论文摘要
由于观察到其与宇宙中普通物质的重力相互作用的影响，暗物质（DM）的存在（DM）是一个良好的事实。但是，我们对暗物质特征的了解仍然相当稀缺。的确，当今基本科学的最大追求之一是对暗物质性质的调查，从其起源到其组成，以及其成分与普通物质的互动方式，除了重力外。在过去的几年中，已经花费了巨大而雄心勃勃的努力来识别其识别，尤其集中在寻找可行的弱相互作用的大量粒子候选者上。但是，到目前为止，沿着这个方向尚未取得积极的结果。另一方面，许多引人入胜的新想法和模型一直在开放：其中，一个有趣的假设是，在标准模型互动下，暗物质成分可能是中性的，但是它们可以通过一种新的，仍然未知的互动，在“隐藏”负责的情况下进行武力。这种新的隐藏对称性将由大量仪表玻色子（深色光子）介导，该玻色子预计将通过动力学混合搭配标准模型。在最近几年中，人们一直在热情和奉献精神中追求这种庞大的调解人，因为它的观察可能在许多已经存在的实验设施的范围内，均基于加速器
The existence of Dark Matter (DM) is a well established fact since many decades, thanks to the observation of the effects of its gravitational interaction with the ordinary matter in the Universe. However, our knowledge of the Dark Matter features is still rather scarce. Indeed, one of the biggest quests in fundamental science today is the investigation of Dark Matter nature, from its origin to its composition, and the way its constituents interact with the ordinary matter, apart from gravity. Huge and ambitious efforts have been spent in the last years into its identification, concentrating especially on the search of viable Weakly Interacting Massive Particle candidates. However, no positive results have been achieved so far along this direction. On the other hand, many fascinating new ideas and models for its interpretation have been blooming: among them, an intriguing hypothesis is that the Dark Matter constituents could be neutral under Standard Model interactions, but they could interact through a new, still unknown, force under a "hidden" charge. This new hidden symmetry would be mediated by a massive gauge boson, the dark photon, which is expected to couple to the Standard Model via a kinetic mixing. The search for such a massive mediator has been pursued with large enthusiasm and dedication in the latest years, as its observation could be within the reach of many already existing experimental facilities, both based on accelerators
