A DIAGRAMMATIC UNITARITY AND A FEYNMAN-LIKE RULE FOR THE OPEN-BOSONIC-STRING AMPLITUDES

被引：0
|
作者：
KOBAYASHI, T
SUZUKI, T
机构：
[1] Institute of Physics, University of Tsukuba, Ibaraki
来源：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS | 1991年 / 104卷 / 06期
关键词：
D O I：
10.1007/BF02820559
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：
A diagrammatic unitarity of the open bosonic string amplitudes is investigated by using the symmetric N-point vertices and the unified propagator in the BRST-invariant operator formalism. It is shown that general amplitudes satisfying the unitarity are realized in the sum of all loop amplitudes with an equal weight up to the coupling constant of the 3-string vertex. The Feynman-like rule for the open-bosonic-string theory is also presented.
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页码：855 / 861
页数：7
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