String Fields and the Standard Model
نویسندگان
چکیده
منابع مشابه
Standard Model bundles of the heterotic string
We show how to construct supersymmetric three-generation models with gauge group and matter content of the Standard Model in the framework of non-simplyconnected elliptically fibered Calabi-Yau manifolds Z. The elliptic fibration on a cover Calabi-Yau, where the model has 6 generations of SU(5) and the bundle is given via the spectral cover description, has a second section leading to the neede...
متن کاملSupersymmetric standard model from the heterotic string.
We present a [FORMULA: SEE TEXT] orbifold compactification of the E8xE8 heterotic string which leads to the (supersymmetric) standard model gauge group and matter content. The quarks and leptons appear as three 16-plets of SO(10), whereas the Higgs fields do not form complete SO(10) multiplets. The model has large vacuum degeneracy. For generic vacua, no exotic states appear at low energies and...
متن کاملInternal Space for the Noncommutative Geometry Standard Model and String
In this note I speculate on connections between the noncommutative geometry approach to the standard model on one side, and the internal space coming from strings on the other. The standard model in noncommutative geometry is described via the spectral action. I argue that an internal noncommutative manifold compactified at the renormalization scale, could give rise to the almost commutative ge...
متن کاملStandard Model at Intersecting D5-branes : Lowering the String Scale
Recently a class of Type IIA orientifold models was constructed yielding just the fermions of the SM at the intersections of D6-branes wrapping a 6-torus. We generalize that construction to the case of Type IIB compactified on an orientifold of T × (C/ZN) with D5-branes intersecting at angles on T. We construct explicit models in which the massless fermion spectrum is just the one of a three-ge...
متن کاملNew String Excitations in the Two-Higgs Standard Model
The effective theory of electroweak interactions may contain more than the single Higgs doublet of the minimal Standard Model. Theoretical arguments in favour of an extended Higgs sector [1] include supersymmetry and string theory, as well as the possibility of electroweak baryogenesis [2]. Extra Higgs scalars give rise to a richer spectrum of non-perturbative excitations, such as membrane defe...
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: Physical Review Letters
سال: 1999
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.82.4184