Charged Higgs mass bound from the $b\rightarrow sγ$ process in the minimal supergravity model

Toru Goto; Yasuhiro Okada

doi:10.1143/ptp.94.407

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Charged Higgs mass bound from the $b\rightarrow sγ$ process in the minimal supergravity model

Toru Goto·Yasuhiro Okada

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Abstract

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 $b\rightarrow sγ$ 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 $3\lsim\tanβ\lsim5$, a charged Higgs lighter than 180 GeV is excluded by this process irrespective of the sign of $μ$.

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Toru Goto, Yasuhiro Okada. 1994-12-03. Charged Higgs mass bound from the $b\rightarrow sγ$ process in the minimal supergravity model. https://doi.org/10.1143/ptp.94.407

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