High-energy String Scatterings of Compactified Open String

Details High-energy String Scatterings of Compactified Open String High-energy String Scatterings of Compactified Open String

2008-05-21

arxiv.org/abs/0805.3168v4

Nucl.Phys.B804:250-261,2008

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, 1 table. v2:typos corrected,references added. v3,v4:Eq.(26) typos. Eq.(27) corrected

Scientific paper

10.1016/j.nuclphysb.2008.06.016

We calculate high-energy massive string scattering amplitudes of compactified open string. We derive infinite linear relations, or stringy symmetries, among soft high-energy string scattering amplitudes of different string states in the Gross kinematic regime (GR). In addition, we systematically analyze all hard power-law and soft exponential fall-off regimes of high-energy compactified open string scatterings by comparing the scatterings with their 26D noncompactified counterparts. In particular, we discover the existence of a power-law regime at fixed angle and an exponential fall-off regime at small angle for high-energy compactified open string scatterings. The linear relations break down as expected in all power-law regimes. The analysis can be extended to the high-energy scatterings of the compactified closed string, which corrects and extends the previous results in [28] .

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