New source of asymmetry between matter and antimatter

The LHCb experiment has found hints of what could be a new piece of the jigsaw puzzle of the missing antimatter in our universe. They have found tantalising evidence of a phenomenon dubbed charge-parity (CP) violation in ...

Simple math, antimatter, and the birth of the Universe

If x2 = 4, then what is x? Did you just think "2"? Is that correct? Well, yes and no. The fact that there is a parallel but equally valid answer that x is negative 2 has been a difficult and intriguing conundrum to everyone ...

Are there antimatter galaxies?

One of the biggest mysteries in astronomy is the question, where did all the antimatter go? Shortly after the Big Bang, there were almost equal amounts of matter and antimatter. I say almost, because there was a tiny bit ...

Explainer: What is antimatter?

Antimatter was one of the most exciting physics discoveries of the 20th century. Picked up by fiction writers such as Dan Brown, many people think of it as an "out there" theoretical idea – unaware that it is actually being ...

Protons and antiprotons appear to be true mirror images

In a stringent test of a fundamental property of the standard model of particle physics, known as CPT symmetry, researchers from the RIKEN-led BASE collaboration at CERN have made the most precise measurements so far of the ...

How we recreated the early universe in the laboratory

One of the all-time great mysteries in physics is why our universe contains more matter than antimatter, which is the equivalent of matter but with the opposite charge. To tackle this question, our international team of researchers ...

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