Effective Action of Matter Fields in Four-Dimensional String Orientifolds - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of High Energy Physics Année : 2000

Effective Action of Matter Fields in Four-Dimensional String Orientifolds

Résumé

We study various aspects of the Kahler metric for matter fields in N=1,2 orientifold compactifications of type IIB string theory. The result has an infrared-divergent part which reproduces the field- theoretical anomalous dimensions, and a moduli-dependent part which comes from N=2 sectors of the orientifold. For the N=2 orientifolds, we also compute the disk amplitude for two matter fields on the boundary and a twisted closed string modulus in the bulk. Our results are in agreement with supersymmetry: the singlet under the SU(2)_R R-symmetry has vanishing coupling, while the coupling of the SU(2)_R triplet does not vanish.

Dates et versions

hal-00012753 , version 1 (27-10-2005)

Identifiants

Citer

P. Bain, M. Berg. Effective Action of Matter Fields in Four-Dimensional String Orientifolds. Journal of High Energy Physics, 2000, 0004, pp.013. ⟨hal-00012753⟩
26 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More