Intersecting 6-branes from new 7-manifolds with G2 holonomy -: art. no. 027

被引：0

作者：

Behrndt, K

Dall'Agata, G

Lüst, D

Mahapatra, S

机构：

[1] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-14476 Golm, Germany

[2] Humboldt Univ, Inst Phys, D-10115 Berlin, Germany

[3] Utkal Univ, Dept Phys, Bhubaneswar 751004, Orissa, India

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2002年 / 08期

关键词：

M-theory; D-branes; superstring vacua; differential and algebraic geometry;

D O I：

暂无

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We discuss a new family of metrics of 7-manifolds with G(2) holonomy, which are R-3 bundles over a quaternionic space. The metrics depend on five parameters and have two abelian isometries. Certain singularities of the G(2) manifolds are related to fixed points of these isometries; there are two combinations of Killing vectors that possess co-dimension four fixed points which yield upon compactification only intersecting D6-branes if one also identifies two parameters. Two of the remaining parameters are quantized and we argue that they are related to the number of D6-branes, which appear in three stacks. We perform explicitly the reduction to the type IIA model.

引用

页数：24

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