A new exotic particle has been hiding out amidst the gobs of data collected by the world's largest atom smasher, physicists have discovered.
The new particle, called Ds3*, is a meson — a type of unstable particle made of one quark and one antiquark. Quarks are subatomic particles and are the most basic building blocks of matter that make up protons and neutrons. They're held together by the strong interaction, or strong force, that is one of the four fundamental forces in nature. (Electromagnetism, weak interaction and gravity are the other three.) No stable form of matter would exist without the strong interaction holding it together.
To read more, click here.