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screened-scalar

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hugohertault / DG-S8H0-simulations

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Modified CLASS/Boltzmann pipeline for a screened conformal-scalar dark sector (the Dark Boson): scale-dependent growth suppression S(k), S8 = 0.78 (0.6-1.6 sigma from lensing), and a -3.5% sound-horizon shift raising early-time H0 to ~70 km/s/Mpc (4.8 -> 2.3 sigma). Fixed parameters, nothing fitted. Companion code to the Dark Geometry papers.

cosmology large-scale-structure dark-matter dark-energy boltzmann-code modified-gravity hubble-tension scalar-field class-code s8-tension dark-geometry dark-boson screened-scalar
  • Updated Jul 7, 2026
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