For example, background particles tend to produce more ionization than a nucleus recoiling from a neutralino collision.
例如，背景粒子和一个与中性伴子碰撞而反冲的原子核相比，前者将造成更多的游离。
2
It will therefore be possible to work out which direction the neutralino that caused it to recoil came from and thus engage in a form of dark-matter astronomy.
由此就可以计算出发生碰撞的中轻微子的来向，甚至产生一门暗物质天文学。
3
In fact, based on the expected neutralino mass and its low tendency to collide, the total mass in neutralinos almost exactly matches the inferred mass of dark matter in the universe.