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February 8, 2020 05:34 pm

How 'MICE' Brings a Muon Collider Closer To Reality

"Scientists have announced a breakthrough that could be key to the creation of a powerful new kind of particle collider," reports the Fermilab/SLAC magazine Symmetry. Long-time Slashdot reader fahrbot-bot shared their report:As reported in the journal Nature, the Muon Ionization Cooling Experiment, or MICE, has for the first time demonstrated the successful taming of a beam of particles called muons through a process called transverse ionization cooling, and the more potential you have to make discoveries as that energy converts into new particles... Muons — which are heavy relatives of electrons — are interesting to accelerator scientists for a number of reasons. For one, they are more massive than the particles they have traditionally used in colliders. The more massive the particles you collide, the higher the energies you can reach with your collisions, and the more potential you have to make discoveries as that energy converts into new particles... Scientists have thus far stuck to colliding particles such as protons, antiprotons, electrons, positrons and ions. One reason for this is the difficulty of producing a sufficient amount of muons and funneling them into an organized beam for an accelerator to propel and collide... MICE scientists passed a beam of muons through an absorber, slowing down their momentum perpendicular to the beam direction and focusing them into a tight beam. They then used radio-frequency cavities to speed up the momentum of the beam in the forward direction. They repeated this until they were left with a focused, well-behaved beam of muons traveling the right way. The scientists undertook the difficult task of measuring each particle one-by-one to evaluate their efforts. They found that they had achieved what they set out to do, bringing scientists a step closer to potentially making a muon collider a reality.

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