U(1) Charges in Orbifolds: Anomaly Cancellation and Phenomenological Consequences

Casas, J.A.; Katehou, E.K.; Munoz, C.

doi:10.1016/0550-3213(89)90566-X

U(1) Charges in Orbifolds: Anomaly Cancellation and Phenomenological Consequences

Nov, 1987

16 pages

Published in:

Nucl.Phys.B 317 (1989) 171-186

Published: 1989

DOI:

10.1016/0550-3213(89)90566-X

Report number:

Print-88-0060-Rev.(OXFORD),
PRINT-88-0060 (OXFORD)

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Abstract: (Elsevier)

A method for calculating U(1) charges in orbifold compactifications is presented. This is applied to the calculation of the anomalies of interesting orbifold models, which allows the study of their phenomenological prospects. The Fayet-Iliopoulos terms associated with the “anomalous” U(1)'s are examined. They can be exploited to lower the rank of the gauge group and obtain (in some cases) realistic models, as it is explicitly shown with the construction of an SU(3) ⊗ SU(2) ⊗ U(1) Y example.

Note:

Revised version

MODEL: STRING
SUPERSYMMETRY
SYMMETRY BREAKING: WILSON LOOP
FIELD THEORY: compactification
FIELD THEORY: ORBIFOLD
ANOMALY: U(1)
GROUP THEORY: REPRESENTATION
COUPLING: YUKAWA
YUKAWA: COUPLING

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