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Hubble Hullabaloo and String Cosmology

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arxiv 2005.01217 v1 pith:3XQERSE7 submitted 2020-05-04 astro-ph.CO hep-ph

Hubble Hullabaloo and String Cosmology

classification astro-ph.CO hep-ph
keywords darkhubblestringconstantcosmologicalcosmologydeltadetermination
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The discrepancy in measurements of the Hubble constant indicates new physics in dark energy, dark matter, or both. Drawing inspiration from string theory, we explore possible solutions to overcome the $H_0$ problem. We investigate the interplay between the cosmological determination of $\Delta N_{\rm eff}{}$ and $Z'{}$ searches at the LHC Run3.

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