Charged Higgs Mass Bound from the b→sγ Process in the Minimal Supergravity Model : Particles and Fields
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概要
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We study the constraint on the mass of the charged Higgs boson in the minimal supergravity model based on the recent measurement of the inclusive b→sγ decay. It is shown that the lower bound for the charged Higgs mass crucially depends on the sign of the higgsino mass parameter (μ). For μ<0, the bound exceeds 400 GeV when the ratio of two Higgs vacuum expectation values (tanβ) is larger than 10. No strong bound is obtained for μ>0 due to cancellations between charged Higgs and supersymmetric particle contributions. For 3≲tanβ≲5, a charged Higgs lighter than 180 GeV is excluded by this process irrespective of the sign of μ.
- 理論物理学刊行会の論文
- 1995-09-25
著者
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OKADA Yasuhiro
Sumitomo Heavy Industries, Ltd.
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Okada Yasuhiro
Sumitomo Heavy Industries Ltd.
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GOTO Toru
Department of Mechanical Engineering, Fukui University of Technology
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Goto T
Department Of Physics Tohoku University
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Goto Toru
Department Of Mechanical Engineering Fukui University Of Technology
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OKADA Yasuhiro
Theory Group, KEK
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Okada Y
Theory Group Kek
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OKADA Yasuhiro
National Laboratory for High Energy Physics (KEK)
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OKADA Yasuhiro
Department of Physics, Tohoku University
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Goto Toru
Department of Gastroenterology, Omori Red Cross Hospital, Japan
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