Orientifolds of non-supersymmetric, asymmetric orbifolds

被引：63

作者：

Blumenhagen, R ^{[1
]}

Görlich, L ^{[1
]}

机构：

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

来源：

NUCLEAR PHYSICS B | 1999年 / 551卷 / 03期

关键词：

orientifolds; asymmetric orbifolds; problem of cosmological constant; D-branes;

D O I：

10.1016/S0550-3213(99)00241-2

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 consider certain four-dimensional supersymmetric and non-supersymmetric asymmetric orbifolds with vanishing cosmological constant up to two loops and gauge the world-sheet parity transformation. This leads to new string vacua, in which Dp- and D(p - 4)-branes or Dp and (D) over bar(p - 4) are identified, Moreover, it is shown that different degrees of supersymmetry can be realized in the bulk and on the brane. We show that for non-supersymmetric models the cosmological constant still vanishes at one-loop order. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：601 / 616

页数：16