论文标题
限制了与物质的毫米颗粒的限制
Limits on the abundance of millicharged particles bound to matter
论文作者
论文摘要
Millicharged颗粒（MCP）是假设的颗粒，其电荷是电子电荷的一部分。我们报告了对MCP的搜索，该搜索具有费用$ \ gtrsim 10^{ - 4} 〜E $，从而提高了对物质的敏感性，相对于以前的搜索，大约两个数量级。这种搜索对这些颗粒的质量很敏感，它们可以用物质形成稳定的结合状态，对应于参数空间中的差距，这是从加速器，相撞者，宇宙射线实验和宇宙学约束的先前搜索范围内的差距。
Millicharged particles (mCPs) are hypothesized particles possessing an electric charge that is a fraction of the charge of the electron. We report a search for mCPs with charges $\gtrsim 10^{-4}~e$ that improves sensitivity to their abundance in matter by roughly two orders of magnitude relative to previous searches. This search is sensitive to such particles over a wide range of masses and charges for which they can form stable bound states with matter, corresponding to a gap in parameter space that is beyond the reach of previous searches from accelerators, colliders, cosmic-ray experiments, and cosmological constraints.
