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String-derived D4 flavor symmetry and phenomenological implications

Pyungwon Ko

Tatsuo Kobayashi

Jae-hyeon Park

Stuart Raby

  • School of Physics, KIAS, Cheongnyangni-dong, Seoul, 130-722, Korea

  • Department of Physics, Kyoto University, Kyoto 606-8502, Japan

  • Department of Physics, Tohoku University, Sendai 980-8578, Japan

  • Department of Physics, The Ohio State University, Columbus, Ohio 43210 USA

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Phys. Rev. D 76, 035005 – Published 17 August, 2007Erratum Phys. Rev. D 76, 059901 (2007)

DOI: https://doi.org/10.1103/PhysRevD.76.035005

Abstract

In this paper we show how some flavor symmetries may be derived from the heterotic string, when compactified on a 6D orbifold. In the body of the paper we focus on the D4 family symmetry, recently obtained in Z3×Z2 orbifold constructions. We show how this flavor symmetry constrains fermion masses, as well as the soft SUSY breaking mass terms. Flavor symmetry breaking can generate the hierarchy of fermion masses and at the same time the flavor symmetry suppresses large flavor changing neutral current processes.

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Corrections

24 August, 2007

Erratum

Publisher’s Note: String-derived D4 flavor symmetry and phenomenological implications [Phys. Rev. D 76, 035005 (2007)]

Pyungwon Ko, Tatsuo Kobayashi, Jae-hyeon Park, and Stuart Raby
Phys. Rev. D 76, 059901 (2007)

Article Text

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Outline

Information

Phys. Rev. D 76, 035005– Published 17 August, 2007
  • Received 1 May 2007
  • Corrected 24 August 2007

© 2007 American Physical Society

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