Antimatter light spectrum4/15/2023 When the electrons move from one orbit to another they absorb or emit light at specific wavelengths, forming the atom's spectrum. But, that can't be exactly right if matter and antimatter don't mirror each other."īut if matter and antimatter don't mirror each other - if antimatter doesn't obey the same laws of physics as regular matter - our models of the Big Bang will be flawed. The ALPHA collaboration reports in Nature the first ever measurement on the optical spectrum of an antimatter atom. It posits that neither observer can say who is really moving and who is stationary. Special relativity assumes that a single unified thing called spacetime splits differently into space and time for observers moving relative to each other. But in a nutshell, if that mirror relationship were not exact, then the basic idea behind special relativity couldn't be exactly right. ![]() "Explaining exactly why special relativity requires antimatter to mirror matter involves a lot of math. If they all end up identical, Einstein's special relatively lives for another day, as Adrian Cho explains for Nature: Physicists with the ALPHA Collaboration at CERN have measured for the first time how antimatter absorbs light. This result is consistent with the Standard Model of particle physics, which predicts that hydrogen and antihydrogen will have identical light-emitting characteristics, but now physicists have the chance to test even more spectra emissions by using different types of lasers. "It's long been thought that antimatter is an exact reflection of matter, and we are gathering evidence to show that is indeed true," Tim Tharp from ALPHA told Ryan F. ![]() ![]() The team found that the antihydrogen atom emitted the exact same light spectrum as regular hydrogen atoms put through the same test.
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