CLOSED STRING FIELD-THEORY LOOPS WITH SYMMETRIC FACTORIZABLE QUADRATIC-DIFFERENTIALS

被引：47

作者：

SONODA, H

ZWIEBACH, B

机构：

[1] MIT, CTR THEORET PHYS, NUCL SCI LAB, CAMBRIDGE, MA 02139 USA

[2] MIT, DEPT PHYS, CAMBRIDGE, MA 02139 USA

来源：

NUCLEAR PHYSICS B | 1990年 / 331卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0550-3213(90)90086-S

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：

It is shown that symmetric modular invariant quadratic differentials with factorization properties allow the construction of covariant closed string field theory counterterms that restore BRST invariance to loop amplitudes. Off-shell scattering amplitudes are constructed in terms of hermitian vertices and propagators; they are manifestly factorizable in all channels, and unitary to all orders in perturbation theory. We discuss the modular invariance of Strebel quadratic differentials on any punctured surface. © 1990.

引用

页码：592 / 628

页数：37

共 29 条

[1] QUADRATIC-DIFFERENTIALS AND CLOSED STRING VERTICES [J].