CONFORMAL SYMMETRY AND CENTRAL CHARGES IN 4 DIMENSIONS

被引:122
作者
ANTONIADIS, I
MAZUR, PO
MOTTOLA, E
机构
[1] UNIV S CAROLINA,DEPT PHYS & ASTRON,COLUMBIA,SC 29208
[2] LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545
关键词
D O I
10.1016/0550-3213(92)90557-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
The trace anomaly of matter in curved space generates an effective action for the conformal factor of the metric tensor in D = 4 dimensions, analogous to the Polyakov action for D = 2. We compute the contributions of the reparameterization ghosts to the central charges for D = 4, as well as the quantum contribution of the conformal factor itself. The ghost contribution satisfies the necessary Wess-Zumino consistency condition only if combined with the spin-2 modes, whose contributions to the trace anomaly we also discuss.
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页码:627 / 647
页数:21
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