Pentaquarks are no longer just a theory!

Pentaquarks are no longer just a theory!

  • Pridružio: 12 Okt 2010
  • Poruke: 10534

Citat:Scientists at the LHCb experiment at the Large Hadron Collider just discovered two particles made up of not three, not four, but five quarks—the first observed pentaquarks. Scientists have been searching for this class of particles for about 50 years.

“The pentaquark is not just any new particle,” says LHCb spokesperson Guy Wilkinson of University of Oxford. “Studying its properties may allow us to understand better how ordinary matter, the protons and neutrons from which we’re all made, is constituted.”

Quarks were first theorized in 1964 by physicists Murray Gell-Mann and George Zweig. The two independently proposed that several of the particles thought to be fundamental—unable to be broken down into smaller parts—were actually made up of smaller particles called quarks. Quarks were eventually found to come in six types, called up, down, charm, strange, top and bottom.

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