Superstring Threshold Corrections to Yukawa Couplings
高能物理 - 理论
2010-11-01 v1 高能物理 - 唯象学
摘要
A general method of computing string corrections to the K\"ahler metric and Yukawa couplings is developed at the one-loop level for a general compactification of the heterotic superstring theory. It also provides a direct determination of the so-called Green-Schwarz term. The matter metric has an infrared divergent part which reproduces the field-theoretical anomalous dimensions, and a moduli-dependent part which gives rise to threshold corrections in the physical Yukawa couplings. Explicit expressions are derived for symmetric orbifold compactifications.
引用
@article{arxiv.hep-th/9212045,
title = {Superstring Threshold Corrections to Yukawa Couplings},
author = {I. Antoniadis and E. Gava and K. S. Narain and T. R. Taylor},
journal= {arXiv preprint arXiv:hep-th/9212045},
year = {2010}
}
备注
26 pages, LATEX NUB-3057 -- IC/92/402 -- CPTH-A185.0892