One-loop tachyon amplitude in unoriented open-closed string field theory

被引:12
|
作者
Asakawa, T [1 ]
Kugo, T
Takahashi, T
机构
[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[2] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
来源
PROGRESS OF THEORETICAL PHYSICS | 1999年 / 102卷 / 02期
关键词
D O I
10.1143/PTP.102.427
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We: calculate one-loop 2-point tachyon amplitudes in unoriented open-closed string field theory, and determine all the coupling constants of the interaction vertices in the theory. It is shown that the planar, nonplanar and nonorientable amplitudes are all reproduced correctly, and nontrivial consistencies among the determined coupling constants are observed. The necessity for the gauge group to be SO(2(13) = 8192) is also reconfirmed.
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页码:427 / 466
页数:40
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