Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1998-01-23
Phys.Rev. D57 (1998) 7361-7368
Physics
High Energy Physics
High Energy Physics - Theory
ReVTeX, 18 pages with no figures, minor typhographical corrections and revised references
Scientific paper
10.1103/PhysRevD.57.7361
It is shown that all string fields except dilaton are non-propagating in the (2+1)-dimensional black string. One finds that the perturbation around the black string reveals a mixing between the dilaton and other fields. Under the new gauge(dilaton gauge), we disentangle this mixing and obtain one decoupled dilaton equation. It turns out that this black string is stable. From the scattering of dilaton off the neutral black string(N=0), we find the absorption cross-section. Further the absorption cross-section for minimally coupled scalar is obtained and we compared it with that of dilaton.
Kim Jin Young
Kim Nam-Jung
Lee Hyun Woo
Myung Yun Soo
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