Gauge Symmetry and Supersymmetry Breaking From Intersecting Branes

نویسنده

  • Amit Giveon
چکیده

We study a system of intersecting NS and D-branes in type IIA string theory in IR. We show that the 3 + 1 dimensional non-supersymmetric theory at the intersection has unstable vacua which are long-lived in some regions of the parameter space of brane configurations, and disappear in others. We also comment on the relation of our construction to systems of D and D̄-branes wrapped around cycles of non-compact Calabi-Yau manifolds and to other related systems.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Gauge Unification via Stable Brane Recombination

We study the transition between parallel and intersecting branes on a torus. Spontaneous symmetry breaking of nonabelian gauge symmetry is understood as brane separation, and a more general intermediate deformation is discussed. We argue that there exists supersymmetry preserving transition and we can always have parallel branes as a final state. The transition is interpreted due to dynamics of...

متن کامل

Quasi-Supersymmetric G Unification from Intersecting D6-Branes on Type IIA Orientifolds

We construct three quasi-supersymmetric G3 GUT models with S3 symmetry and gauge coupling unification from intersecting D6-branes on Type IIA orientifolds. The Standard Model fermions and Higgs doublets can be embedded into the bifundamental representations in these models, and there is no any other unnecessary massless representation. Especially in Model I with gauge group U(4)3, we just have ...

متن کامل

Dynamical Supersymmetry Breaking in Standard-like Models with Intersecting D6-branes

We address dynamical supersymmetry breaking within a N = 1 supersymmetric Standard-like Model based on a Z2 × Z2 Type IIA orientifold with intersecting D6-branes. The model possesses an additional, confining gauge sector with the USp(2)A × USp(2)B × USp(4) gauge group, where the gaugino condensation mechanism allows for the breaking of supersymmetry and stabilizes moduli. We derive the leading ...

متن کامل

Intersecting Brane World From Type I Compactification

We elaborate that general intersecting brane models on orbifolds are obtained from type I string compactifications and their T -duals. Symmetry breaking and restoration occur via recombination and parallel separation of branes, preserving supersymmetry. The Ramond– Ramond tadpole cancelation and the toron quantization constrain the spectrum as a branching of the adjoints of SO(32), up to orbifo...

متن کامل

TASI Lectures on Extra Dimensions and Branes∗

This is a pedagogical introduction into theories with branes and extra dimensions. We first discuss the construction of such models from an effective field theory point of view, and then discuss large extra dimensions and some of their phenomenological consequences. Various possible phenomena (split fermions, mediation of supersymmetry breaking and orbifold breaking of symmetries) are discussed...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008