Rare tetra quark with 4 distinct flavors found
Q. How many flavors do quarks have?- Published on 01 Mar 16
- Scientists have discovered a new elementary particle - a rare tetraquark consisting of four distinct types or 'flavours' of quarks.
- Quarks are point-like elementary particles that typically come in packages of two or three, the most familiar of which are the proton and neutron (each is made of three quarks).
- Tetraquarks - four quarks together - are much rarer and are not well understood.
- There are six types, or "flavours," of quark to choose from - up, down, strange, charm, bottom and top. Each of these also has an antimatter counterpart.
- While all other observed tetraquarks contain at least two of the same flavour, the new particle X(5568) has four different flavours - up, down, strange and bottom.
- It is exciting to discover a new and unusual particle that will help us understand the strong interaction - one of the four known fundamental interactions in physics.