A three-family SU(6) type I compactification

被引:62
作者
Kakushadze, Z [1 ]
机构
[1] Harvard Univ, Lyman Lab Phys, Cambridge, MA 02138 USA
[2] Northeastern Univ, Dept Phys, Boston, MA 02115 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0370-2693(98)00739-4
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We construct a four dimensional chiral N=1 space-time supersymmetric Type I vacuum corresponding to a compactification on a toroidal Z(2)xZ(2)xZ(3) orbifold. Using recent results in four dimensional orientifolds, we argue that this model has a well defined world-sheet description. An interesting feature of this model is that the gauge group contains an SU(6) subgroup with three chiral generations. Moreover, this model contains D5-branes and therefore corresponds to a non-perturbative heterotic vacuum. This is the first example of a consistent chiral N=1 supersymmetric string vacuum which is non-perturbative from the heterotic viewpoint, has a perturbative description in a dual theory, and possesses some phenomenologically interesting characteristics. We also compute the tree-level superpotential in this theory. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:269 / 276
页数:8
相关论文
共 33 条
[1]  
ALDAZABAL G, HEPTH980426
[2]   Chiral asymmetry in four-dimensional open-string vacua [J].
Angelantonj, C ;
Bianchi, M ;
Pradisi, G ;
Sagnotti, A ;
Stanev, YS .
PHYSICS LETTERS B, 1996, 385 (1-4) :96-102
[3]   A D=4 N=1 orbifold of type I strings [J].
Berkooz, M ;
Leigh, RG .
NUCLEAR PHYSICS B, 1997, 483 (1-2) :187-208
[4]   TYPE-I SUPERSTRINGS IN DIMENSIONS LESS THAN 10 .2. FINITENESS [J].
BERN, Z ;
DUNBAR, DC .
NUCLEAR PHYSICS B, 1989, 319 (01) :104-132
[5]   LOOP CORRECTIONS TO SUPERSTRING EQUATIONS OF MOTION [J].
CALLAN, CG ;
LOVELACE, C ;
NAPPI, CR ;
YOST, SA .
NUCLEAR PHYSICS B, 1988, 308 (2-3) :221-284
[6]   ADDING HOLES AND CROSSCAPS TO THE SUPERSTRING [J].
CALLAN, CG ;
LOVELACE, C ;
NAPPI, CR ;
YOST, SA .
NUCLEAR PHYSICS B, 1987, 293 (01) :83-113
[7]   Strings on orientifolds [J].
Dabholkar, A ;
Park, J .
NUCLEAR PHYSICS B, 1996, 477 (03) :701-714
[8]   NEW CONNECTIONS BETWEEN STRING THEORIES [J].
DAI, J ;
LEIGH, RG ;
POLCHINSKI, J .
MODERN PHYSICS LETTERS A, 1989, 4 (21) :2073-2083
[9]   TYPE-I SUPERSTRINGS IN DIMENSIONS LESS THAN 10 .1. MODEL CONSTRUCTION [J].
DUNBAR, DC .
NUCLEAR PHYSICS B, 1989, 319 (01) :72-103
[10]   Consistency conditions for orientifolds and D-manifolds [J].
Gimon, EG ;
Polchinski, J .
PHYSICAL REVIEW D, 1996, 54 (02) :1667-1676