Particle physicists working at the Large Hadron Collider have detected two new subatomic particles that were predicted to exist but never seen.
The discovery of the two new baryon particles stands to deepen our understanding of the universe.
The two new baryons (known as Xi_b’- and Xi_b*-) are made from three quarks bound together by a strong force. Quarks are elementary particles that are believed to be the basic building blocks of protons, neutrons, and a variety of other, heavier particles. Baryons are subatomic particles with masses equal to or greater than that of protons.
The new particles, which were predicted by the quark model, will expand our knowledge of how things work at atomic scales, and beyond the Standard Model’s attempt to explain how the building blocks of matter contribute to the constitution of the universe.