Loop calculations for the Green-Schwarz superstring

Loop calculations for the Green-Schwarz superstring
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Green-Schwarz 超弦的循环计算

DOI:
10.1016/0370-2693(87)90269-3
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发表时间:
1987
期刊:
影响因子:
4.4
通讯作者:
S. Carlip
S. Carlip
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
S. Carlip

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计算了具有格林-施瓦茨协变作用的异质弦的若干路径积分。证明了如果超对称不被破缺,宇宙学常数在所有阶上都消失,无质量粒子的一粒子和二粒子s矩阵元没有环路修正。此外,在有限温度下的单回路计算给出了正确的最低阶自由能。
Several path integrals are calculated for the heterotic string with the Green-Schwarz covariant action. It is shown that if supersymmetry is unbroken, the cosmological constant vanishes to all orders, and one-and two-particle S-matrix elements for massless particles recieve no loop corrections. In addition, the one-loop calculation at finite temperature gives the correct lowest-order free energy.