Magnetized (Shift-)Orientifolds

Gianfranco Pradisi

Magnetized (Shift-)Orientifolds

High Energy Physics - Theory 2007-05-23 v2

Authors: Gianfranco Pradisi

Abstract

We study four dimensional $Z_2 \times Z_2$ (shift)-orientifolds in presence of internal magnetic fields and NS-NS $B$ -field backgrounds, describing in some detail one explicit example with N=1 supersymmetry. These models are related by $T$ -duality to orientifolds with $D$ -branes intersecting at angles and exhibit, due to the background fields, a rank reduction of the gauge group and multiple matter families. Moreover, the low-energy spectra are chiral and anomaly free if $D5$ -branes are present along the magnetized directions.

Keywords

d-brane models d-branes brane supergravity

Cite

@article{arxiv.hep-th/0210088,
  title  = {Magnetized (Shift-)Orientifolds},
  author = {Gianfranco Pradisi},
  journal= {arXiv preprint arXiv:hep-th/0210088},
  year   = {2007}
}

Comments

LaTeX file, 8 pages, based on the talk presented at the ``First International Conference On String Phenomenology'', Oxford, 6-11 july 2002. Eq.(1) and table 3 corrected. 1 reference added

Magnetized (Shift-)Orientifolds

Abstract

Keywords

Cite

Comments

Related papers