String-theoretic unitary S-matrix at the threshold of black-hole production
Abstract
Previous results on trans-planckian collisions in superstring theory are rewritten in terms of an explicitly unitary S-matrix whose range of validity covers a large region of the energy impact-parameter plane. Amusingly, as part of this region's border is approached, properties of the final state start resembling those expected from the evaporation of a black hole even well below its production threshold. More specifically, we conjecture that, in an energy window extending up to such a threshold, inclusive cross sections satisfy a peculiar ``antiscaling" behaviour, seemingly preparing for a smooth transition to black-hole physics.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- November 2004
- DOI:
- 10.1088/1126-6708/2004/11/001
- arXiv:
- arXiv:hep-th/0410166
- Bibcode:
- 2004JHEP...11..001V
- Keywords:
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- Superstrings and Heterotic Strings Black Holes in String Theory Models of Quantum Gravity Black Holes;
- High Energy Physics - Theory
- E-Print:
- 18 pages, 4 figures