Are you Team Axion or Team WIMPS? LetoSapunar DarkMatter Throwdown
Axions by contrast are less massive, even lighter than the lightest known particle called the neutrino. In being so light they behave strangely.
Every object has what’s called wave-particle duality—meaning things act to some extent like a wave and to some extent like a particle. For example, something tiny like an electron can act like a particle–getting shot through space and colliding with other particles like billiard balls. But it can also act like a wave–combining with other waves and not existing definitely in any one place at a time. But the heavier the object, the less pronounced this effect is–the more it acts like a particle.
“At the time, the community mostly favored WIMPS” because they were easier to look for with existing technology, Rybka says. After looking for WIMPS for three decades and finding nothing, “there are people who are getting tired of this idea.” So far experiments like ADMX have tried to detect axions by building a chamber with a strong magnetic field, and of a specific size, so that it resonates with a certain mass of axion. It’s sort of like how two differently sized instruments—a violin versus a cello—would hum as they pick up different ambient sounds of higher or lower pitch. This resonance would cause more axions to turn into photons in the cavity, Chadha-Day says, and extremely sensitive detectors would pick them up.
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