Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-12-12
Phys.Lett. B530 (2002) 188-196
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, 2 figures, RevTeX
Scientific paper
10.1016/S0370-2693(02)01321-7
In the Minimal Supersymmetric Standard Model (MSSM), the masses of the charged Higgs boson ($H^\pm$) and the CP-odd scalar ($A$) are related by $M_{H^+}^2=M_A^2+m_W^2$. Furthermore, because the coupling of $W^-$-$A$-$H^+$ is fixed by gauge interaction, the tree level production rate of $q \bar q' \to W^{\pm \ast} \to A H^\pm$ depends only on one supersymmetry parameter --the mass ($M_A$) of $A$. We show that to a good approximation this conclusion also holds at the one-loop level. Consequently, this process can be used to distinguish MSSM from its alternatives (such as a general two-Higgs-doublet model) by verifying the above mass relation, and to test the prediction of the MSSM on the product of the decay branching ratios of $A$ and $H^\pm$ in terms of only one single parameter -- $M_A$.
Kanemura Shinya
Yuan C.--P.
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