Dirichlet Higgs in extra-dimension consistent with electroweak data

• Haba, Naoyuki

• Oda, Kinya

• Takahashi, Ryo

抄録

N. Haba, K. Oda, R. Takahashi. Dirichlet Higgs in Extra-dimension Consistent with Electroweak Data. Acta Phys. Pol. B 42, 33 (2011). https://doi.org/10.5506/APhysPolB.42.33.

We propose a simple five-dimensional extension of the Standard Model (SM) without any Higgs potential nor any extra fields. A Higgs doublet lives in the bulk of a flat line segment and its boundary condition is Dirichlet at the ends of the line, which causes the electroweak symmetry breaking without Higgs potential. The vacuum expectation value of the Higgs is induced from the Dirichlet boundary condition which is generally allowed in higher dimensional theories. The lightest physical Higgs has non-flat profile in the extra dimension even though the vacuum expectation value is flat. As a consequence, we predict a maximal top Yukawa deviation (no coupling between top and Higgs) for the brane-localized fermion and a small deviation, a multiplication of 2√2/π≃0.9 to the Yukawa coupling, for the bulk fermion. The latter is consistent with the electroweak precision data within 90% C.L. for 430 GeV≲mKK≲500 GeV.

収録刊行物

• Acta Physica Polonica B

  Acta Physica Polonica B 42 (1), 33-44, 2011

  Jagiellonian University

詳細情報

• CRID: 1050581168901448960
• NII論文ID: 120006959166
• NII書誌ID: AA00509670
• HANDLE: 11094/78761
• ISSN: 05874254
• 本文言語コード: en
• 資料種別: journal article
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