Quantum string scattering by gravitation
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M.E.V Costa; H.J de Vega
📂
Article
📅
1991
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Elsevier Science
🌐
English
⚖ 593 KB
The two-point amplitude, AZ(kZ. k,), describing the scattering of the lowest string excitation (the tachyon) by a gravitational shock wave (GSW) is computed. For this purpose, we use the appropriate vertex operator in the GSW background. We explicitly evaluate Az(kz, k,) for large impact parameter