Perturbative gravity from QCD amplitudes

被引：95

作者：

Bern, Z

Grant, AK

机构：

[1] Univ Calif Los Angeles, Dept Phys, Los Angeles, CA 90095 USA

[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

来源：

PHYSICS LETTERS B | 1999年 / 457卷 / 1-3期

关键词：

D O I：

10.1016/S0370-2693(99)00524-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We demonstrate that QCD gluon amplitudes can be used to construct a Lagrangian for gravity. This procedure makes use of perturbative 'squaring' relations between gravity and gauge theory that follow from string theory. We explicitly carry out the construction for up to five-point interactions and discuss a set of field variables in the Einstein-Hilbert Lagrangian for interpreting the Lagrangian obtained from QCD. A spin-off from our analysis is that it can be used to provide simpler tree-level gravity Feynman rules than for conventional gauges. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：23 / 32

页数：10

共 33 条

[1] The hierarchy problem and new dimensions at a millimeter [J].