M theory fivebrane and confining phase of N=1 SO(Nc) gauge theories

JOURNAL OF GEOMETRY AND PHYSICS

卷:28

Article

Ahn, C ; Oh, KH ; Tatar, R

关键词: M theory;    string theory;    supersymmetric gauge theories;    D branes;   

DOI  :  10.1016/S0393-0440(98)00026-6

来源: Elsevier

【 摘 要 】

The moduli space of vacua for the confining phase of N = 1 SO(N-c) supersymmetric gauge theories in four dimensions is analyzed by studying the M theory fivebrane. The type IIA brane configuration consists of a single NS5 brane, multiple copies of NS'5 branes, D4 branes between them, and D6 branes intersecting D4 branes. We construct M theory fivebrane configuration corresponding to the superpotential perturbation where the power of adjoint field is connected to the number of NS'5 branes. At a singular point in the moduli space where mutually local dyons become massless, the quadratic degeneracy of the N = 2 SO(N-c) hyperelliptic curve determines whether this singular point gives a N = 1 vacua or not. The comparison of the meson vevs in M theory fivebrane configuration with field theory results turns out that the effective superpotential by the integrating in method with enhanced gauge group SU(2) is exact. (C) 1998 Elsevier Science B.V. All rights reserved.

【 授权许可】

Free