Composition Dependent Interactions Weaker Than Gravity (Physics)

引力是迄今为止已知的基本原理中最弱的 交互. 会不会有新的相互作用 比引力更大的引力， 它们产生的异常微妙的效果 西雅图 该小组将开发一种基于高度敏感的仪器， 对称、旋转、扭转天平， 与质量不完全成比例的力， 重力，但略微取决于物质（例如， 中子、质子、夸克或电子的数量）。 这将 使他们能够“看到”弱约60倍的相互作用 比他们目前的检测极限，这是最好的现有 对成分相关力的约束。

Gravity is by far the weakest of the known fundamental interactions. Could there exist new interactions much weaker than gravity that have remained undetected because of the extraordinarily delicate effects they produce? The Seattle group will develop a sensitive instrument based on a highly symmetrical, rotation torsion balance to search for feeble forces that are not exactly proportional to mass, as is gravity, but depend slightly on the substance (e.g. on the number of neutrons, protons, quarks, or electrons). This will allow them to "see" interactions approximately 60 times weaker than their present detection limit, which is the best existing constraint on composition dependent forces.