Stringtheoretic unitary Smatrix at the threshold of blackhole production
Abstract
Previous results on transplanckian collisions in superstring theory are rewritten in terms of an explicitly unitary Smatrix whose range of validity covers a large region of the energy impactparameter 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 blackhole physics.
 Publication:

Journal of High Energy Physics
 Pub Date:
 November 2004
 DOI:
 10.1088/11266708/2004/11/001
 arXiv:
 arXiv:hepth/0410166
 Bibcode:
 2004JHEP...11..001V
 Keywords:

 Superstrings and Heterotic Strings Black Holes in String Theory Models of Quantum Gravity Black Holes;
 High Energy Physics  Theory
 EPrint:
 18 pages, 4 figures