<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>B</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo mathvariant="bold">−</mml:mo><mml:msup><mml:mover accent="true"><mml:mi>B</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mn>0</mml:mn></mml:msup></mml:math>mixing in gauge-Higgs unification

DOI DOI DOI Web Site Web Site 被引用文献10件 オープンアクセス

書誌事項

公開日
2012-05-07
権利情報
  • http://link.aps.org/licenses/aps-default-license
DOI
  • 10.1103/physrevd.85.096001
  • 10.48550/arxiv.1103.5980
  • 10.48550/arxiv.1112.6062
公開者
American Physical Society (APS)

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説明

We discuss flavor mixing and resulting Flavor Changing Neutral Current (FCNC) in the SU(3) \otimes SU(3)_color gauge-Higgs unification. As the FCNC process we calculate the rate of D^0-\bar D^0 mixing due to the exchange of non-zero Kaluza-Klein gluons at the tree level. Flavor mixing is argued to be realized by the fact that the bulk mass term and brane localized mass term is not diagonalized simultaneously unless bulk masses are degenerate. It is shown that automatic suppression mechanism is operative for the FCNC processes of light quarks. We therefore obtain a lower bound on the compactification scale of order \cal O(TeV) by comparing our prediction on the mass difference of neutral D meson with the recent experimental data, which is much milder than what we naively expect assuming only the decoupling of non-zero Kaluza-Klein gluons.

26 pages, 12 figures. arXiv admin note: text overlap with arXiv:1005.2455

収録刊行物

  • Physical Review D

    Physical Review D 85 (9), 096001-, 2012-05-07

    American Physical Society (APS)

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