The electron Born self-energy (eBse) model assumes a finite-sized electron of radius Re = 1.9 x 10-20m, determined from electron-positron collisions at LEP. The Born self-energy UeB, corresponding to the energy contained in the surrounding electric field, provides a quantitative description of Dark Energy (Astrophys Space Sci 365, 64 (2020); Phys Sci Forum 2, 9 (2021)). Specifically, this model explains (i) the magnitude of DE, (ii) the occurrence of a deceleration-acceleration transition at a redshift z ~ 0.8, and (iii) possesses an equation of state w = -1 (in Quantum Electrodynamics the electron is assumed to be a point particle (Re = 0); thus, UeB ~ 1/Re is divergent and is “renormalized away” by assuming that UeB is contained within the electron rest mass me). w = -1 implies that two electron Born masses meB = UeB/c2 will experience a gravitational repulsion, whereas meB and an uncharged mass will experience the normal gravitational attraction. meB (~ 40 mp) is a Dark Matter candidate that provides a good description of the Grand Rotation Curves for the Milky Way and M31 galaxies out to distances of ~ 400 kpc (Sci Rep 14, 24090 (2024)) (the difference between DE and DM, in this model, is as follows: DE arises from the time-dependent creation of meB in intergalactic space due to ionization of hydrogen, whereas DM is a time-independent effect arising from the presence of a halo of electrons, along with their associated meB, that surrounds a galaxy). Early in the Universe’s expansion history, for electrons and positrons of finite size, a glass transition occurs at a maximum number density of ~ 1/(2Re)3 corresponding to physical contact between particles. This glass transition possesses properties akin to Cosmic Inflation (Sci Rep 13, 21798 (2023)). A brief summary of the eBse model and its interconnections to DE, DM, and CI will be provided in this contribution.
Symbolic Regression for Interpretable Cosmological Parameter Inference from the Cosmic Microwave Background