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Realizing Higher-Level Gauge Symmetries in String Theory: New Embeddings for String GUTs

Abstract:

We consider the methods by which higher-level and non-simply laced gauge symmetries can be realized in free-field heterotic string theory. We show that all such realizations have a common underlying feature, namely a dimensional truncation of the charge lattice, and we identify such dimensional truncations with certain irregular embeddings of higher-level and non-simply laced gauge groups within level-one simply-laced gauge groups. This identification allows us to formulate a direct mapping b...

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Authors


Dienes, KR More by this author
March-Russell, J More by this author
Journal:
Nucl.Phys. B
Volume:
479
Issue:
1-2
Pages:
113-172
Publication date:
1996-04-19
DOI:
ISSN:
0550-3213
URN:
uuid:3b7f14fe-af90-4d2e-8f12-51971a55d059
Source identifiers:
9271
Local pid:
pubs:9271
Language:
English
Keywords:

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