期刊
PHYSICAL REVIEW D
卷 61, 期 10, 页码 -出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevD.61.104011
关键词
-
The one-loop four-graviton amplitude in either of the type-ii superstring theories is expanded in powers of the external momenta up to and including terms of order s(4) In sR(4), where R-4 denotes a specific contraction of four linearized Weyl tensors and s is a Mandelstam invariant. Terms in this series are obtained by integrating powers of the two-dimensional scalar field theory propagator over the toroidal world sheet as well as the moduli of the toms. The values of these coefficients match expectations based on duality relations between string theory and eleven-dimensional supergravity.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据