Article révisé par les pairs
| Résumé : | The behaviour of all known particles in isobaric spin space is represented by 2 × 2 matrices or "quaternions". In particular an isospin-zero particle introduced by d'Espagnat et Prentki and others disappears from the Lagrangian of the strong interactions as a consequence of invariance under charge conjugation. This representation gives a simple form to the isospin, charge and isofermion number as infinitesimal operators. Although not irreducible when only rotations in isospin space and charge-conserving gauge transformations are considered, it may prove useful in the study of very strong or weak interactions. © 1958. |
