Towards a realistic Standard Model from D-brane configurations

Autor: Leontaris, G. K., Tracas, N. D., Vlachos, N. D., Korakianitis, O.
Rok vydání: 2007
Předmět:
Zdroj: Phys.Rev.D76:115009,2007
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevD.76.115009
Popis: Effective low energy models arising in the context of D-brane configurations with Standard Model (SM) gauge symmetry extended by several gauged abelian factors are discussed. The models are classified according to their hypercharge embeddings consistent with the SM spectrum hypercharge assignment. Particular cases are analyzed according to their perspectives and viability as low energy effective field theory candidates. The resulting string scale is determined by means of a two-loop renormalization group calculation. Their implications in Yukawa couplings, neutrinos and flavor changing processes are also presented.
Comment: 22 pages, 12 EPS figures, some clarifications/references added
Databáze: arXiv