Does the Electron Have an Anomalous Electric Dipole Moment?

Engel Roza

doi:10.20944/preprints201906.0142.v2

Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 14 June 2019 / Approved: 15 June 2019 / Online: 15 June 2019 (15:08:58 CEST)
Version 2 : Received: 2 July 2019 / Approved: 3 July 2019 / Online: 3 July 2019 (11:37:39 CEST)
Version 3 : Received: 12 August 2019 / Approved: 13 August 2019 / Online: 13 August 2019 (05:12:57 CEST)
Version 4 : Received: 25 November 2019 / Approved: 26 November 2019 / Online: 26 November 2019 (03:57:09 CET)

An analysis is presented of the possible existence of a second anomalous dipole moment of Dirac’s particle next to the angular one. It includes a discussion why, in spite of his own derivation, Dirac has denied 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 its perceived violation of the CPT theorem. Moreover, by reference from literature, the possible impact is discussed in the nuclear domain and in the gravitational domain if it would exist.

anomalous electric dipole moment; Dirac particle; Pauli’s spin vector; isospin

Physical Sciences, Particle and Field Physics

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Does the Electron Have an Anomalous Electric Dipole Moment?

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