On the Second Dipole Moment of Dirac’s Particle

An analysis is presented of the possible existence of the second anomalous dipole moment of Dirac’s particle next to the one associated with the angular momentum. It includes a discussion why, in spite of his own derivation, Dirac has doubted about its relevancy. It is shown why since then it has be...

Full description

Saved in:
Bibliographic Details
Published inFoundations of physics Vol. 50; no. 8; pp. 828 - 849
Main Author Roza, Engel
Format Journal Article
LanguageEnglish
Published New York Springer US 01.08.2020
Springer Nature B.V
Subjects
Angular momentum
Charge reversal
Charged particles
Classical and Quantum Gravitation
Classical Mechanics
Dipole moments
Domains
Electric dipoles
Electrons
History and Philosophical Foundations of Physics
Particle physics
Philosophy of Science
Physics
Physics and Astronomy
Potential fields
Quantum Physics
Relativity Theory
Standard model (particle physics)
Statistical Physics and Dynamical Systems
Symmetry
Textbooks
Isospin
Anomalous electric dipole moment
Gravitational dirac particle
Online AccessGet full text

Cover

More Information
Summary:An analysis is presented of the possible existence of the second anomalous dipole moment of Dirac’s particle next to the one associated with the angular momentum. It includes a discussion why, in spite of his own derivation, Dirac has doubted about its relevancy. It is shown why since then it has been overlooked and why it has vanished from leading textbooks. A critical survey is given on the reasons of its reject, including the failure of attempts to measure and the perceived violations of time reversal symmetry and charge–parity symmetry. It is emphasized that the anomalous electric dipole moment of the pointlike electron (AEDM) is fundamentally different from the quantum field type electric dipole moment of an electron (eEDM) as defined in the standard model of particle physics. The analysis has resulted into the identification of a third type Dirac particle, next to the electron type and the Majorana particle. It is shown that, unlike as in the case of the electron type, its second anomalous dipole moment is real valued and is therefore subject to polarization in a scalar potential field. Examples are given that it may have a possible impact in the nuclear domain and in the gravitational domain.
ISSN:0015-9018
1572-9516
DOI:10.1007/s10701-020-00355-3