WORLD-SHEET INSTANTON CONTRIBUTION TO Z7 YUKAWA COUPLINGS

被引：14

作者：

CASAS, JA

GOMEZ, F

MUNOZ, C

机构：

[1] UNIV SANTIAGO COMPOSTELA,DEPT FIS TEOR,E-15706 SANTIAGO,SPAIN

[2] UNIV OXFORD,DEPT THEORET PHYS,OXFORD OX1 3NP,ENGLAND

[3] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

来源：

PHYSICS LETTERS B | 1990年 / 251卷 / 01期

关键词：

D O I：

10.1016/0370-2693(90)90238-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the twisted Yukawa couplings of a Z7 orbifold, focussing on the computation of the world-sheet instanton contribution, which gives the number of different couplings and the hierarchy between them. The calculation is performed in a completely general way, including the deformations compatible with the orbifold point group, which are related to the (1, 1) moduli. © 1990.

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页码：99 / 104

页数：6

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