IceCube Neutrino Observatory
Kablam!

Scientists Confirm an Incredibly Powerful Antimatter Particle Crashed Into Antarctica

byDan Robitzski
Mar 12
IceCube Neutrino Observatory

It triggered a subatomic cascade — and could have an avalanche of implications for the future of physics.

Crash Course

Scientists have now confirmed that an unusually powerful particle of antimatter crashed down into Antarctica back in December 2016.

The collision seems to have triggered a subatomic cascade effect called Glashow resonance, Live Science reports, which is a theoretical phenomenon that requires more energy to set off than even the most powerful particle accelerators can provide. Scientists didn’t expect to see tangible evidence of Glashow resonance, but now that they have it helps further confirm the Standard Model of subatomic physics.

Slow and Steady

It took over four years for researchers affiliated with the IceCube Neutrino Observatory in Antarctica to confirm the Glashow resonance, according to the study, published Wednesday in the journal Nature.

But that’s nothing compared to how long scientists have been waiting to spot the bizarre phenomenon. Live Science notes that Stephen Glashow first came up with the notion of the subatomic cascade back in 1960 and that it’s been a matter of pure theory that whole time.

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Flash Physics

The actual cascade of Glashow resonance involves an antineutrino — or even a regular neutrino — crashing into an electron with so much energy that it produces a comparatively-large particle called a W boson.

Doing this requires the extremely-tiny antineutrino to carry 6.3 petaelectronvolts, or the amount of energy of 6.3 quadrillion electrons accelerated by a single volt. That’s the same, Live Science calculated, as 6,300 mosquitos traveling at one mile per hour — or one mosquito traveling 8.2 times the speed of sound.

That’s 450 times the energy that the Large Hadron Collider is expected to produce after it’s done being upgrade, Live Science reports, meaning scientists are left waiting for these bizarre, rare phenomena to happen on their own in nature.

READ MORE: Monster antimatter particle slams into Antarctica [Live Science]

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More on the IceCube Neutrino Observatory: We Finally Know Where Those Mysterious Subatomic Particles Are Coming From


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