Abstract
The double Higgs boson production through $e^{+}e^-\rightarrow hhZ$ is analyzed in the minimal supersymmetric extension of the Standard Model(SM) with the local gauge symmetry $U(1)_{B-L}$, where $h$ denotes the lightest Higgs boson with 125 GeV. Considering the constraints from the updated prediction data, we find that the production cross section of this process in the model depends on some parameters strongly.
Highlights
Among the particles predicted by the Standard Model (SM), the Higgs boson was the last particle discovered
The double Higgs boson production through eþe− → hhZ is analyzed in the minimal supersymmetric extension of the Standard Model (SM) with the local gauge symmetry Uð1ÞB−L, where h denotes the lightest Higgs boson with 125 GeV
Considering the constraints from the updated prediction data, we find that the production cross section of this process in the model depends on some parameters strongly
Summary
Among the particles predicted by the Standard Model (SM), the Higgs boson was the last particle discovered. We choose these parameters so that the corresponding theoretical prediction of the mass of the lightest CP-even Higgs fits the experimental data with 3 standard deviations: 124.37 GeV ≤ mh ≤ 125.81 GeV. Taking Ecm 1⁄4 500 GeV, tan β0 1⁄4 1.1, mν;33 1⁄4 600 GeV, mL ;33 1⁄4 600 GeV, Yν;33 1⁄4 5 × 10−4, and Yx;33 1⁄4 0.8, we plot the total cross section σ of eþe− → hhZ versus the parameter tan β, where the gray band (a)
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