Most of this is thought to be made of cold dark matter, consisting of
exotic subatomic particles, and hot dark matter, which may be made from neutrinos (New Scientist, Science, 11 February).
Exotic subatomic particles made up of five quarks that physicists briefly thought they had discovered back in 2003 now finally appear to be in the bag.
Not exact matches
In trying to reconcile general relativity with quantum mechanics, theorists now invoke even more
exotic things —
subatomic strings, parallel universes, and higher dimensions.
Quantum mechanics govern the behavior of matter at the atomic and
subatomic levels in
exotic and counterintuitive ways as compared to the everyday world of classical physics.
Early on, two teams had spied a telltale anomaly in the
subatomic wreckage: an excess of energy from proton collisions that hinted at new physics perhaps produced by WIMPs (or, to be fair, many additional
exotic possibilities).
A guide to the
subatomic realm uses the metaphor of a painter's palette, with protons, neutrons and electrons as primary colors and more
exotic particles adding new shades.
Remarkably, photosynthesis appears to derive its ferocious efficiency not from the familiar physical laws that govern the visible world but from the seemingly
exotic rules of quantum mechanics, the physics of the
subatomic world.
The new measurements serve to confirm and refine the existing theory of
subatomic particles and help pave the way for a deeper theory that could include even more
exotic particles.
Of all the known
subatomic particles, neutrinos are perhaps one of the most
exotic and least understood.