Another way to probe the particles' properties is to look for the gamma-ray radiation produced when two WIMPs collide and annihilate each other, producing a cascade of particles and photons.

另一种探明粒子性质的方法是观测两个WIMP的碰撞湮灭，此过程同时产生的一系列粒子和质子，产生伽马射线放射物。

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When the cosmic rays and gamma rays smash into molecules in the Earth's atmosphere, they set off a cascade of other fast-moving particles.

BBC: Hawc gamma-ray telescope captures its first image