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Pade-Improvement of CP-odd Higgs Decay Rate into Two Gluons
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abstract
We present an asymptotic Pade-approximant estimate for the four-loop coefficients within the linear combination of correlators entering the recently calculated decay rate of a CP-odd Higgs boson, with an assumed mass $m_A = 100 GeV$, into two gluons. All but one of these coefficients are shown to be determined for arbitrary $m_A$ from the known 3-loop-order rate by renormalization group methods. Asymptotic Pade-approximant estimates for these coefficients are all seen to be within 12% of their correct values. The four-loop term in the decay rate for $m_A = 100 GeV$ is estimated to be only 4.3% of its leading one-loop contribution.
Forward citations
Cited by 1 Pith paper
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One-loop induced contributions to the rare decay of $A_0 \rightarrow h_0h_0\gamma$ in Two Higgs Doublet Models
First complete one-loop analytic calculation of A0 -> h0h0 gamma in the CP-conserving two Higgs doublet model, with benchmark decay rates and differential distributions.
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