Yukawa Couplings for Calabi-yau String Compactification

Gepner, Doron

doi:10.1016/0550-3213(88)90147-2

Yukawa Couplings for Calabi-yau String Compactification

Doron Gepner
(
- Princeton U.
)

Apr, 1988

14 pages

Published in:

Nucl.Phys.B 311 (1988) 191-204

Published: 1988

DOI:

10.1016/0550-3213(88)90147-2

Report number:

PUPT-1093

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Abstract: (Elsevier)

Recently, we have described string theories based on N = 2 superconformal theories. It was argued that all such string theories correspond to string propagation on Calabi-Yau manifolds. We compute here the Yukawa couplings for massless particles in the representation 27 of E 6 (generations), in some examples, and show that the quasi-topological result of the field-theory approximation holds exactly. This is a non-trivial quantitative agreement which further supports the geometric interpretation of these string theories, as well as giving an explicit demonstration of the quasi-topological nature of these couplings.

MODEL: STRING
SUPERSYMMETRY
FIELD THEORY: CONFORMAL
FIELD THEORY: compactification
GRAND UNIFIED THEORY: E(6)
FIELD THEORY: MASSLESS
MASSLESS: FIELD THEORY
COUPLING: YUKAWA
YUKAWA: COUPLING
GROUP THEORY: REPRESENTATION

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