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arXiv · 1504.07792

Impact of quark flavor violation on the decay $h^0(125GeV) \to c\bar{c}$ in the MSSM

K. Hidaka·A. Bartl·H. Eberl·E. Ginina·W. Majerotto
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Abstract

We compute the decay width of $h^0 \to c \bar{c}$ in the MSSM with quark flavor violation (QFV) at full one-loop level in the $\overline{\rm DR}$ renormalization scheme. We study the effects of $\tilde{c}-\tilde{t}$ mixing, taking into account the constraints on QFV from the B meson data. We find that the full one-loop corrected decay width $\Gamma(h^0 \to c \bar{c})$ is very sensitive to the MSSM QFV parameters. In a scenario with large $\tilde{c}_{L,R}-\tilde{t}_{L,R}$ mixing, $\Gamma (h^0 \to c \bar{c})$ can differ up to $\sim \pm 35\%$ from its SM value. After estimating the uncertainties of the width, we conclude that an observation of these QFV SUSY effects is possible at a future $e^+ e^-$ collider such as ILC.

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K. Hidaka, A. Bartl, H. Eberl, E. Ginina, W. Majerotto. 2015-04-29. Impact of quark flavor violation on the decay $h^0(125GeV) \to c\bar{c}$ in the MSSM. https://arxiv.org/abs/1504.07792

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