So a reversal of C and P is a time reversal. Therefore CPTT = T and T^2 = 1 - reverse time twice to get the same direction. The CPT theorem tells us that if you flip the charge by applying C and then flip the parity by applying P and the reverse the time direction by applying T you get one CPT = 1. To be honest I think this has some connection to issues with gravity. The question about CP violations is very deep. The freed antihydrogen meets hydrogen as it escapes and the two annihilate one another, leaving a well known pattern in particle detectors surrounding the apparatus. Microwaves tuned to a specific frequency aimed on these antihydrogen atoms flips their magnetic orientation, liberating them. In the ALPHA apparatus, antihydrogen is trapped by an arrangement of magnets that affect the magnetic field of the atoms. Capturing and measuring antihydrogen’s spectrum is the main goal of the ALPHA group.ĪLPHA has taken the first modest measurements of antihydrogen.
That is, if everything we know about particle physics is right. Credit: USAFīasic physics dictates that hydrogen’s antimatter twin, antihydrogen, should be equally recognizable by having an identical spectrum.
/trail-of-bright-light-in-box-460688633-5966b3605f9b5816183316bb.jpg "what does anti matter look like")
An illustration of hydrogen and antihydrogen. The frequency distribution of this emitted light is known it has been precisely measured and, in our universe made of matter, is unique to hydrogen. Firing light at the atoms excites the electron, causing it to jump into an orbit further away from the nucleus before it relaxes and returns to its resting orbit emitting light in the process. Each hydrogen atom has one electron orbiting its nucleus.
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