Atomic Size Dark Matter Pearls, Electron Signal

TL;DR

This paper proposes a novel dark matter model involving atomic-size bubbles of a new vacuum phase, explaining multiple experimental observations and astrophysical phenomena without requiring new physics beyond the Standard Model.

Contribution

It introduces a unique dark matter model based on vacuum bubbles with atomic-scale electron clouds, explaining DAMA-LIBRA, Xenon1T signals, and astrophysical X-ray lines.

Findings

Consistent explanation of DAMA-LIBRA and Xenon1T electron recoil events.

Explanation of the 3.5 keV X-ray line from dark matter interactions.

Matching the observed self-interaction cross section of dark matter in dwarf galaxies.

Abstract

We explain both the observation of dark matter by the seasonal variation of the DAMA-LIBRA data and the observation of ``electron recoil'' events at Xenon1T by the SAME dark matter model. This DM is bubbles of a new type of vacuum containing ordinary atomic matter under high pressure ensured by the surface tension of the domain wall. Surrounding it a cloud of electrons almost of atomic size. Also we explain the self interactions of dark matter suggested by astronomical studies of dwarf galaxies etc. Interaction in the shielding slows the dark matter down to a low terminal velocity. Nuclei in the underground detectors are thus not detected. Further we explain the ``mysterious'' X-ray line of 3.5 keV from our dark matter particles colliding with each other so that the surfaces/skins unite. Even the 3.5 keV X-ray radiation from the Tycho supernova remnant is explained as our pearls hitting cosmic rays in the remnant. DAMA-LIBRA and Xenon1T experiments see supposedly our dark matter pearls excited during their stopping in the shielding or the air. The most remarkable support for our type of model is that both these underground experiments see events with about 3.5 keV energy, just the energy of the X-ray line. We get a good numerical understanding of the fitted cross section over mass ratio of self interacting dark matter observed in the study of dwarf galaxies. Also the total energy of the dark matter pearls stopped in the shield is reasonably matching order of magnitudewise with the absolute observation rates of DAMA-LIBRA and Xenon1T, although the their ratio requires further development. Accepting that the different phases of the vacuum could be realized inside the Standard Model, our whole scheme also could. No new physics is needed for dark matter!