1974/04/01 by Matej Pavšič, Matej Pavsic · 2 citations
Earth and Planetary Sciences · Physics and Astronomy · #Cold Fusion and Nuclear Reactions #Quantum Mechanics and Applications #Quantum and Classical Electrodynamics #hep-ph #hep-th
paper · pdf · doi:10.1007/bf01810695
published as Int.J.Theor.Phys.9:229-244,1974 · 15 pages. An early proposal of "mirror matter", published in 1974. This is an exact copy of the published paper. I am posting it here because of the increasing interest in the "exact parity models" and its experimental consequences
openalex publication_date 1974/04/01 · arxiv created 2001/05/31 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Having in mind that physical systems have different levels of structure we develop the concept of external, internal and total improper Lorentz transformation (space inversion and time reversal). A particle obtained from the ordinary one by the application of internal space inversion or time reversal is generally a different particle. From this point of view the intrinsic parity of a nuclear particle (`elementary particle') is in fact the external intrinsic parity, if we take into account the internal structure of a particle. We show that non-conservation of the external parity does not necessarily imply non-invariance of nature under space inversion. The conventional theory of beta-decay can be corrected by including the internal degrees of freedom to become invariant under total space inversion, though not under the external one.