Triplet Structures Seen in Microscopic Particles
A delta-particle is one of the microscopic particle in nature, and created as a triplet structure. A delta particle consists of three quarks, and can be regarded as a triplet field. Furthermore, three quarks in a delta particle have different-color charges such as a red, a blue and a green charge. Because of these different color charges, three quarks in a delta particle can maintain good balance. This balance works as the stability of a delta-particle. In fact, like a delta particle, other triplet fields in nature have stability due to the balance among their three elemental fields.