TY - BOOK ID - 28282533 TI - Origin of symmetries AU - Froggatt, C D AU - Nielsen, H B PY - 1991 SN - 997196631X 9789814329057 9814329053 9971966301 9789971966300 9789971966317 PB - Singapore River Edge, NJ World Scientific DB - UniCat KW - 514.1 KW - 514.1 General geometry KW - General geometry KW - Nucleaire reacties KW - Nuclear transmutations KW - Partikels (Kernfysica) KW - Particles (Nuclear physics) KW - Standard model (Nuclear physics) KW - Symmetry (Physics) KW - Invariance principles (Physics) KW - Symmetry (Chemistry) KW - Conservation laws (Physics) KW - Physics KW - Elementary particles (Physics) KW - High energy physics KW - Nuclear particles KW - Nucleons KW - Nuclear physics KW - Nuclear models KW - Nuclear reactions KW - Nuclear reactions. UR - https://www.unicat.be/uniCat?func=search&query=sysid:28282533 AB - The development in our understanding of symmetry principles is reviewed. Many symmetries, such as charge conjugation, parity and strangeness, are no longer considered as fundamental but as natural consequences of a gauge field theory of strong and electromagnetic interactions. Other symmetries arise naturally from physical models in some limiting situation, such as for low energy or low mass. Random dynamics and attempts to explain all symmetries - even Lorentz invariance and gauge invariance - without appealing to any fundamental invariance of the laws of nature are discussed. A selection of ER -