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Probing a Possible Vacuum Refractive Index with Gamma-Ray Telescopes
We have used a stringy model of quantum space-time foam to suggest that the vacuum may exhibit a non-trivial refractive index depending linearly on gamma-ray energy: eta -1 ~ E_gamma/M_QG1, where M_QG1 is some mass scale typical of quantum gravity that may be ~ 10^18 GeV: see Phys. Lett. B 665, 412...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
2009
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2009.02.030 http://cds.cern.ch/record/1157684 |