ANOMALIES IN COVARIANT W-GRAVITY

被引：4

作者：

CERESOLE, AT

FRAU, M

MCCARTHY, J

LERDA, A

机构：

[1] BRANDEIS UNIV,DEPT PHYS,WALTHAM,MA 02254

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

来源：

PHYSICS LETTERS B | 1991年 / 265卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(91)90016-J

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider free scalar matter covariantly coupled to background W-gravity. Expanding to second order in the W-gravity fields, we study the appropriate anomalous Ward-Takahashi identities and find the counterterms which maintain diffeomorphism invariance and its W-analogue. We see that a redefinition of the vielbein transformation rule under W-diffeomorphism is required in order to cancel nonlocal contributions to the anomaly. Moreover, we explicitly write all gauge invariances at this order. Some consequences of these results for the chiral gauge quantization are discussed.

引用

页码：72 / 78

页数：7

共 33 条

[1] 2D HIGHER SPIN GRAVITY AND THE MULTIMATRIX MODELS [J].