# Supersymmetric (non-)abelian bundles in the type-I and SO(32) heterotic string

@article{Blumenhagen2005SupersymmetricB, title={Supersymmetric (non-)abelian bundles in the type-I and SO(32) heterotic string}, author={Ralph Blumenhagen and Gabriele Honecker and Timo Weigand}, journal={Journal of High Energy Physics}, year={2005}, volume={2005}, pages={009-009} }

We discuss perturbative four-dimensional compactifications of both the SO(32) heterotic and the type-I string on smooth Calabi-Yau manifolds endowed with general non-abelian and abelian bundles. We analyse the generalized Green-Schwarz mechanism for multiple anomalous U(1) factors and derive the generically non-universal one-loop threshold corrections to the gauge kinetic function as well as the one-loop corrected Fayet-Iliopoulos terms. The latter can be interpreted as a stringy one-loop…

## 77 Citations

Heterotic vacua from general (non-) Abelian bundles

- Physics
- 2006

We report on the construction of four-dimensional string vacua by considering general abelian and non-abelian bundles on an internal Calabi-Yau for both heterotic theories. The structure of the…

Non-abelian brane worlds: the heterotic string story

- Physics
- 2005

We discuss chiral supersymmetric compactifications of the SO(32) heterotic string on Calabi-Yau manifolds equipped with direct sums of stable bundles with structure group U(n). In addition we allow…

Compactifications of the Heterotic String with Unitary Bundles

- Physics
- 2006

In this thesis we investigate a large new class of four-dimensional supersymmetric string vacua defined as compactifications of the $E_8 \times E_8$ and the $SO(32)$ heterotic string on smooth…

SO(32) heterotic line bundle models

- Physics
- 2018

A bstractWe search for the three-generation standard-like and/or Pati-Salam models from the SO(32) heterotic string theory on smooth, quotient complete intersection Calabi-Yau threefolds with…

GUT relations from string theory compactifications

- Physics
- 2009

Abstract Wilson line on a non-simply connected manifold is a nice way to break SU(5) unified symmetry, and to solve the doublet–triplet splitting problem. This mechanism also requires, however, that…

Nongeometric heterotic strings and dual F-theory with enhanced gauge groups

- PhysicsJournal of High Energy Physics
- 2019

A bstractEight-dimensional nongeometric heterotic strings were constructed as duals of F-theory on Λ1,1 ⊕ E8 ⊕ E7 lattice polarized K3 surfaces by Malmendier and Morrison. We study the structure of…

Relations from String Theory Compactifications

Wilson line on a non-simply connected manifold is a nice way to break SU(5) unified symmetry, and to solve the doublet–triplet splitting problem. This mechanism also requires , however, that the two…

Calabi-Yau compactifications of non-supersymmetric heterotic string theory

- Physics
- 2015

A bstractPhenomenological explorations of heterotic strings have conventionally focused primarily on the E8×E8 theory. We consider smooth compactifications of all three ten-dimensional heterotic…

Vacuum Constraints for Realistic Strongly Coupled Heterotic M-Theories

- Physics, Computer ScienceSymmetry
- 2018

The compactification from the 11-dimensional Horava-Witten orbifold to 5-dimensional heterotic M-theory on a Schoen Calabi-Yau threefold is reviewed, as is the specific S U ( 4 ) vector bundle…

Computation of D-brane instanton induced superpotential couplings: Majorana masses from string theory

- Physics
- 2007

We perform a detailed conformal field theory analysis of D2-brane instanton effects in four-dimensional type IIA string vacua with intersecting D6-branes. In particular, we explicitly compute…

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