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arXiv · 1411.2840

$h^0 \to c \bar{c}$ as a test case for quark flavor violation in the MSSM

A. Bartl·H. Eberl·E. Ginina·K. Hidaka·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 adopting the $\overline{\rm DR}$ renormalisation scheme. We study the effects of $\tilde{c}-\tilde{t}$ mixing, taking into account the constraints from the B meson data. We show that the full one-loop corrected decay width $Γ(h^0 \to c \bar{c})$ is very sensitive to the MSSM QFV parameters. In a scenario with large $\tilde{c}_{L,R}-\tilde{t}_{L,R}$ mixing $Γ(h^0 \to c \bar{c})$ 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 SUSY QFV effects is possible at an $e^+ e^-$ collider (ILC).

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A. Bartl, H. Eberl, E. Ginina, K. Hidaka, W. Majerotto. 2015-01-12. $h^0 \to c \bar{c}$ as a test case for quark flavor violation in the MSSM. https://doi.org/10.1103/physrevd.91.015007

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