
Summary
The values of the critical density for the natural formation of neutrons in the nucleus of hydrogen protostars and the intrinsic magnetic moment of the electron, determined in the Stern-Gerlach experiment, provide the empirical references to consider the electron as a composite particle.
Based on the empirical data, the radius of the electron under these conditions has been determined.
The hypothetical results have coincided with the empirical results. A maximum deviation of 0,8% is acceptable.
The electron is considered a composite particle.
It is formed by a structure, calculated using criteria reasoned in this development.
Like any hypothesis, it cannot be accepted as true until it is verified experimentally. I do not know the scope that this topic may have, but I consider that it can be a contribution to the scientific panorama.
Most notable antecedents
H.S. Allen published an article, reference 1918 Proc. Phys. Soc. London 3149, in which he basically described the electron as a ring of negative electric charge that rotated on itself with a speed close to the propagation of light in the vacuum.
On the twenty-fifth of October, 1918, at the Imperial College of Science, South Kensington, with the Presidency of Prof. C.H. Lees, Dr. H.S. Allen defended his model.
Later works such as those of Lucas and Bergman in the 1990s, brought Allen’s model back to light

Thanks
To my family, because we have shared the vicissitudes of the project for four years, always encouraging me to continue.
To Montse and José María, from the EHU and BEAZ respectively, for their kind collaboration in various consultations.
Bibliographic references
Allen,H.S (1918) The case for a ring electron. Proceedings of The Physical Society of London, 31(1), 49-68. https://doi.org/10.1088/1478-7814/31/1/303
Puccini A. (2019). “Neutronization: A more comprehensive equation”. International Journal of Current Research, 11, (07), 5805-5812 https://journalcra.com/article/neutronization-more-comprehensive-equation
Sánchez del Río C. (2015) (Coordinador) Física Cuántica 5ª edición EDICIONES PIRAMIDE
Ynduráin F. (2006) Electrones, neutrinos y quarks. La física de partículas ante el nuevo milenio 2ª edición EDICIONES CRITICA
In Bilbao, fifteen October 2024
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