Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-05-19
JHEP 0809:024,2008
Physics
High Energy Physics
High Energy Physics - Theory
15 pages, 6 figures
Scientific paper
10.1088/1126-6708/2008/09/024
We complement our earlier position-space exploration of a recently proposed S-matrix for transplanckian scattering by a momentum-space analysis. As in the previous paper, we restrict ourselves to the case of axisymmetric collisions of extended sources. Comparison between the two formulations allows for several cross-checks while showing their complementary advantages. In particular, the momentum-space formulation leads to an easier computation of the emitted-graviton spectra and to an attempt to study the system beyond its critical points into the presumed gravitational-collapse regime.
Veneziano Gabriele
Wosiek Jacek
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