Yukawa coupling structure in intersecting D-brane models
نویسندگان
چکیده
منابع مشابه
Yukawa couplings in intersecting D - brane models
We compute the Yukawa couplings among chiral fields in toroidal Type II compactifications with wrapping D6-branes intersecting at angles. Those models can yield realistic standard model spectrum living at the intersections. The Yukawa couplings depend both on the Kähler and open string moduli but not on the complex structure. They arise from worldsheet instanton corrections and are found to be ...
متن کاملYukawa cosmology and intersecting brane models
In string theory, stabilization of moduli fields and their cosmological implications have been discussed by many authors. In this paper we do not consider conventional modulus, nor relative distance between two branes. We focus our attention to a relative position of three branes and discuss its cosmological problem. In general, stabilization of the relative position of three intersecting brane...
متن کاملProton Decay in Intersecting D-brane Models
We analyze proton decay via dimension six operators in certain GUT-like models derived from Type IIA orientifolds with D6-branes. The amplitude is parametrically enhanced by a factor of α −1/3 GUT relative to the coresponding result in four-dimensional GUT’s. Nonetheless, even assuming a plausible enhancement from the threshold corrections, we find little overall enhancement of the proton decay...
متن کاملRecent Progress in Intersecting D-brane Models
The aim of this article is to review some recent progress in the field of intersecting D-brane models. This includes the construction of chiral, semi-realistic flux compactifications, the systematic study of Gepner model orientifolds, the computation of various terms in the low energy effective action and the investigation of the statistics of solutions to the tadpole cancellation conditions.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2005
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s2005-02166-4