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QCD corrections to the charged Higgs decay of a heavy quark
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abstract
We present an analytic formula for the $O(\alpha_s)$ corrections to the decay $t\to H^+b$ for nonzero $m_H$ and $m_b$. The Equivalence Theorem is used to relate these corrections to those for the process $t\to W^+b$. Contrary to previously published results we find that the effect of the $b$ quark mass is negligible for a wide range of $m_t$, $m_H$ and $\tan \beta$.
Forward citations
Cited by 2 Pith papers
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Searching for a Charged Higgs Boson in Top-Quark Decays via the $WZ$ Mode
Recasting ttZ analyses yields sub-permille constraints on Br(t→H±b)×Br(H±→WZ) and vΔ≲2 GeV in the Y=0 Higgs triplet model, accompanied by a 2σ preference for a non-zero signal.
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New Physics in inclusive semileptonic $B$ decays
A global fit to inclusive semileptonic B decay moments and rate constrains all seven dimension-six new-physics parameters, finding no significant BSM signal but new bounds, especially on the right-handed vector Wilson...
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