![quark particle quark particle](https://cdn.mos.cms.futurecdn.net/a3h4gtFZTtDaG6Lp9J4UUn-1200-80.jpg)
![quark particle quark particle](http://hyperphysics.phy-astr.gsu.edu/hbase/Particles/imgpar/hychg.png)
Detailed knowledge of the strong interaction is also essential for determining whether new, unexpected processes are a sign of new physics or just standard physics. These particles made of unusual combinations of quarks are an ideal “laboratory” for studying one of the four known fundamental forces of nature, the strong interaction that binds protons, neutrons and the atomic nuclei that make up matter. For decades, however, theorists have predicted the existence of four-quark and five-quark hadrons, which are sometimes described as tetraquarks and pentaquarks and in recent years experiments including the LHCb have confirmed the existence of several of these exotic hadrons. Quarks typically combine together in groups of twos and threes to form hadrons. This breakthrough new discovery can help scientists now understand the complex ways in which quarks bind themselves together to form these composite. Quarks form together to form composite particles known as hadrons, which include protons and neutrons. The finding will help physicists better understand quarks, a type of elementary particle which is a fundamental building block of all matter. The discovery, presented at a recent seminar at CERN and described in a paper published today is likely to be the first of a previously undiscovered class of particles never before seen by physicists. The Large Hadron Collider Beauty (LHCb) collaboration has observed a type of four-quark particle never seen before.