Mirror World versus large extra dimensions

Abstract

Recently proposed low scale quantum gravity scenario is expected to have a significant impact on the Mirror World hypothesis. Some aspects of this influence is investigated here, assuming that the fundamental gravity scale is near a TeV. It is shown that future colliders will be capable to produce the mirror matter, but an experimental signature, which will distinguish such events from the background, is unclear. The `smoking gun'' signals of the Mirror World would be an observation of decays like ${\rm Y}(2S)\to {\tilde{\chi }}_{b2}\gamma$. But unfortunately the expected branching ratios are very small. Finally, it is shown that a mirror supernova will be quite a spectacular event for our world too, because a considerable amount of ordinary energy is expected to be emitted in the first several seconds.

12 pages, no figures, LaTeX, some typos corrected. Published in Mod. Phys. Lett. A14 (1999) 2321-2328

References in corpus (6)

• The Hierarchy Problem and New Dimensions at a Millimeter
• Quantum Gravity and Extra Dimensions at High-Energy Colliders
• Collider Signatures of New Large Space Dimensions
• Experimental Status of Gravitational-Strength Forces in the Sub-Centimeter Regime
• L/E-Flatness of the Electron-Like Event Ratio in Super-Kamiokande and a Degeneracy in Neutrino Masses
• Neutrino oscillations and gamma-ray bursts

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• Mirror Matter as Self Interacting Dark Matter
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• Cosmology with Mirror Dark Matter
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• Drell-Yan and Diphoton production at Hadron Colliders and Low Scale Gravity Model
• Are mirror planets opaque?