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Gauge origin of discrete flavor symmetries in heterotic orbifolds

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Title: Gauge origin of discrete flavor symmetries in heterotic orbifolds
Authors: Beye, Florian Browse this author
Kobayashi, Tatsuo Browse this author →KAKEN DB
Kuwakino, Shogo Browse this author
Issue Date: 7-Sep-2014
Publisher: Elsevier
Journal Title: Physics Letters B
Volume: 736
Start Page: 433
End Page: 437
Publisher DOI: 10.1016/j.physletb.2014.07.058
Abstract: We show that non-Abelian discrete symmetries in orbifold string models have a gauge origin. This can be understood when looking at the vicinity of a symmetry enhanced point in moduli space. At such an enhanced point, orbifold fixed points are characterized by an enhanced gauge symmetry. This gauge symmetry can be broken to a discrete subgroup by a nontrivial vacuum expectation value of the Kahler modulus T. Using this mechanism it is shown that the Delta (54) non-Abelian discrete symmetry group originates from a SU(3) gauge symmetry, whereas the D-4 symmetry group is obtained from a SU(2) gauge symmetry.
Rights: (C) 2014 The Authors. Published by Elsevier B.V.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小林 達夫

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