منابع مشابه
First LIGO events: binary black holes mergings
Based on evolutionary scenarios for binary stellar evolution we study the merging rates of relativistic binary stars (NS+NS, NS+BH, BH+BH) under di erent assumptions of BH formation. We nd the BH+BH merging rate in the range one per 200,000 { 500,000 year in a Milky-Way type galaxy, while the NS+NS merging rate Rns is approximately 10 times as high, which means that the expected event rate even...
متن کاملBlack Holes at Accelerators
One of the most surprising and exciting possibilities for new physics at future colliders is the production of microscopic black holes [1], which can occur in theories with large extra dimensions [2]. String theory suggests a scenario in which the Standard Model particles are confined to a submanifold with the familiar three spatial dimensions (the ‘brane’), while gravity is free to propagate i...
متن کاملBlack holes at accelerators
This is my contribution to the proceedings of Stephen Hawking’s 60th birthday celebration. If the ideas of TeV scale gravity are correct, then black holes should be produced at accelerators that probe the TeV scale, and their decays should evidence one of Stephen’s greatest discoveries, the phenomenon of black hole radiance. ∗ email address: [email protected]. Black holes at accelerators
متن کاملBlack Holes at Neutrino Telescopes
In scenarios with extra dimensions and TeV-scale quantum gravity, black holes are expected to be produced in the collision of light particles at center-of-mass energies above the fundamental Planck scale with small impact parameters. Black hole production and evaporation may thus be studied in detail at the Large Hadron Collider (LHC). But even before the LHC starts operating, neutrino telescop...
متن کاملBlack holes may not constrain varying constants
New and rather controversial observations hint that the fine structure constant α may have been smaller in the early universe, suggesting that some of the fundamental “constants” of physics may be dynamical. In a recent paper [1], Davies, Davis, and Lineweaver have argued that black hole thermodynamics favors theories in which the speed of light c decreases with time, and disfavors those in whi...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2020
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.101.064063