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Astrophysical Constraints on Large Extra Dimensions

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arxiv hep-ph/9905474 v2 pith:YVXINXAQ submitted 1999-05-25 hep-ph astro-ph

V. Barger , T. Han , C. Kao , R.-J. Zhang This is my paper · ORCID
classification hep-phastro-ph
keywords dimensionsextralargeannihilationdimensionallowerastrophysicalbremsstrahlung
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abstract

In the Kaluza-Klein (KK) scenario with n large extra dimensions where gravity propagates in the 4+n dimensional bulk of spacetime while gauge and matter fields are confined to a four dimensional subspace, the light graviton KK modes can be produced in the Sun, red giants and supernovae. We study the energy-loss rates through photon-photon annihilation, electron-positron annihilation, gravi-Compton-Primakoff scattering, gravi-bremsstrahlung and nucleon-nucleon bremsstrahlung, and derive lower limits to the string scale M_S. The most stringent lower limit obtained from SN1987A leads to $M_S> 30 - 130$ TeV (2.1-9.2 TeV) for the case of two (three) large extra dimensions.

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Cited by 1 Pith paper

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  1. Two Micron-Size Dark Dimensions

    hep-th 2025-01 conditional novelty 5.0 of 10

    Two micron-size dark dimensions are consistent with observations only if the compact space has no isometries and the normalcy temperature is fine-tuned to about 2 MeV.

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