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Experimental tests of dark bubble cosmology

U. Danielsson and D. Panizo

  • Institutionen för Fysik och Astronomi, Box 803, SE-751 08 Uppsala, Sweden

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Phys. Rev. D 109, 026003 – Published 5 January, 2024

DOI: https://doi.org/10.1103/PhysRevD.109.026003

Abstract

In this paper we use α′2 corrections to the D3-brane action to obtain a nonzero and positive cosmological constant in the induced cosmology living on the dark bubble. Its measured value together with the value of the fine structure constant correspond to a dark dimension of size 5×10−5  m and a string scale at 11 TeV. We conclude that the dark bubble model predicts deviations of Newtonian gravity and stringy excitations of known particles within reach of future experiments.

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Phys. Rev. D 109, 026003– Published 5 January, 2024
  • Received 27 November 2023
  • Accepted 15 December 2023
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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