Very little is known about the exact nature of dark matter. Currently, some of the most promising dark matter candidates are extremely light bosonic particles such as axions, axion-like particles or even dark photons. "These can also be regarded as a classical field oscillating at a certain frequency. But we can't yet put a figure on this frequency—and therefore the mass of the particles," explains Professor Dmitry Budker. "That is why in the CASPEr research program, we are systematically investigating different frequency ranges looking for hints of dark matter."
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/2NhTTpn
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