One-loop massive scattering amplitudes and ward identities in string theory

被引:5
|
作者
Chan, CT [1 ]
Lee, JC
机构
[1] Natl Ctr Theoret Sci, Div Phys, Hsinchu, Taiwan
[2] Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 30050, Taiwan
来源
PROGRESS OF THEORETICAL PHYSICS | 2006年 / 115卷 / 01期
关键词
D O I
10.1143/PTP.115.229
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We calculate bosonic open string one-loop massive scattering amplitudes for some low-lying string states. By using the periodicity relations of Jacobi theta functions, we explicitly prove an infinite number Of one-loop) type I stringy Ward identities derived from type 1. zero-norm states in the old covariant first quantized (OCFQ) spectrum of open bosonic string. The subtlety in the proofs of one-loop type 11 stringy Ward identities is discussed by comparing them with those of string-tree cases. High-energy limit of these stringy Ward identities can be used to Fix the proportionality constants between one-loop massive high-energy scattering amplitudes of different string states with the same momenta, These proportionality constants cannot be calculated directly from sample calculation as we did previously in the cases of string-tree scattering amplitudes.
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页码:229 / 243
页数:15
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