String scattering from D-branes in type 0 theories

被引：24
|
作者：
Garousi, MR
机构：
[1] Inst Studies Theoret Phys & Math IPM, Tehran, Iran
[2] Birjand Univ, Dept Phys, Birjand, Iran
来源：
NUCLEAR PHYSICS B | 1999年 / 550卷 / 1-2期
关键词：
bosonic strings; D-branes; string duality; scattering amplitude; effective actions;
D O I：
10.1016/S0550-3213(99)00152-2
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We derive fully covariant expressions for all two-point scattering amplitudes involving a closed string tachyon and massless strings from the Dirichlet brane in type 0 theories. The amplitude for two massless D-brane fluctuations to produce a closed string tachyon is also evaluated. We then examine in detail these string scattering amplitudes in order to extract world-volume couplings of the tachyon with itself and with massless fields on a D-brane. We find that the tachyon appears as an overall coupling function in the Born-Infeld action and conjecture the form of the function. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：225 / 237
页数：13
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