Summary: Nearly lost amid all the Pluto excitement, scientists at CERN have possibly discovered a new particle called the pentaquark. This new particle has been theorized to exist since the 60s and many have claimed to discover it before so they are being cautious. However, if this is indeed what is seems to be, then we have a new form of matter.
The pentaquark is a particle composed of four quarks and one antiquark.
Scientists found the particle by studying the way that the particle Lambda b decayed into three other particles. Some of the intermediary stages only made sense if the pentaquark did exist. Although still cautious about declaring this to be the pentaquark, the technology available to researchers at CERN allows them to view the problem in five dimensions rather than just one.
If this is indeed the particle they think it is, it will provide us with new ways of imagining quarks to be arranged and matter to be composed. Matter may be more complex than we thought.
BBC News
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