Solution for Little Hierarchy Problem and b→sγ(Summer Institute 2006)

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概要

• 論文の詳細を見る

• We show that all the parameters which destabilize the weak scale can be taken around the weak scale in the MSSM without conflicting with the SM Higgs boson mass bound set by LEP experiment. The point is if the lightest CP-even Higgs boson h has only a small coupling to Z boson, LEP cannot generate h sufficiently. This time, same bound constrains mass of the heaviest CP-even Higgs boson H. However, it is easy to make H heavy using off-diagonal elements of Higgs mass matrix and consequently smaller stop masses are allowed. This scenario explains two excesses observed at LEP Higgs search. Though all the MSSM Higgs bosons should have the weak scale masses in this scenario, amplitude of b→ sγ induced by charged Higgs can naturally be compensated by chargino if we take natural mass parameters by which the little hierarchy problem can be solved.

• 2007-02-20

著者

• Sanda A.i.

  Department Of Physics Kanagawa University

• Sanda A.

  Department Of Physics Kanagawa University

• Kim S.

  Department Ob

• Kim S.-g.

  Department Of Physics Nagoya University

• YOSHIKAWA T.

  Department of Physics, Nagoya University

• Maekawa N.

  Department pf Physics,Nagoya University

• Sakurai K.

  Department pf Physics,Nagoya University

• Matsuzaki A.

  Department of Physics, Nagoya University

• Maekawa N.

  Department Of Physics Nagoya University

• Sakurai K.

  Department Of Physics Nagoya University

• Yoshikawa T.

  Department Of Physics Nagoya University

• Sakurai K.

  Department Of Bioenvironmental Medicine Graduate School Of Medicine Chiba University

• Matsuzaki A.

  Department Of Physics Nagoya University

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