BRS INVARIANCE AND UNITARITY IN CLOSED STRING FIELD-THEORY

被引：33

作者：

HATA, H

机构：

[1] Department of Physics, Kyoto University, Kyoto

来源：

NUCLEAR PHYSICS B | 1990年 / 329卷 / 03期

关键词：

D O I：

10.1016/0550-3213(90)90078-R

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 study the unitarity of loop amplitudes in the new path-integral formalism of covariant closed string field theory. The quantum action is given by adding to the classical action the correction terms which are higher order in h{stroke} and recover the BRS symmetry breaking caused by the path-integral measure. Surprisingly, we find that the unitarity holds for g( ≤ 3)-loop amplitudes. This indicates that the BRS invariance automatically ensures the unitarity. © 1990.

引用

页码：698 / 722

页数：25

共 38 条

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