CERN Confirms 2019 Discovery Of ‘Pentaquarks’
Scientists working with the Large Hadron Collider (LHC) have confirmed their discovery in March 2019 of three subatomic particles during Run 2, the European nuclear research centre CERN said on Tuesday.
The 27 kilometer-long (16.8 mile) LHC at CERN is the machine that found the Higgs boson particle, which along with its linked energy field is thought to be vital to the formation of the universe.
Image: Denis Balibouse
Now scientists at CERN say they have observed a new kind of “pentaquark” and the first-ever pair of “tetraquarks”, adding three members to the list of new hadrons found at the LHC.
They will help physicists better understand how quarks bind together into composite particles
Quarks are elementary particles that usually combine in groups of twos and threes to form hadrons such as the protons and neutrons that make up atomic nuclei.
More rarely, however, they can also combine into four-quark and five-quark particles, christened tetraquarks and pentaquarks.
“The more analyses we perform, the more kinds of exotic hadrons we find,” physicist Niels Tuning said in a statement.
“We’re witnessing a period of discovery similar to the 1950s, when a ‘particle zoo’ of hadrons started being discovered and ultimately led to the quark model of conventional hadrons in the 1960s. We’re creating ‘particle zoo 2.0’.”
See more here: theepochtimes
The header image shows the new pentaquark, illustrated here as a pair of standard hadrons loosely bound in a molecule-like structure. Image: Cern
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