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arxiv: hep-ph/0508138 · v1 · submitted 2005-08-11 · ✦ hep-ph · hep-th

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Multigluonic scattering amplitudes of heavy quarks

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classification ✦ hep-ph hep-th
keywords heavyamplitudehelicityquarkscatteringamplitudesantiquarkarbitrary
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We consider heavy quark and antiquark off-shell spinorial currents with emission of an arbitrary number of gluons of positive helicity. From this results we calculate the corresponding on-shell scattering amplitude and the quark-antiquark vector current. Then, we show that in the heavy top quark effective theory the holomorfic component of the Higgs $\to q \bar{q} + n$-gluon amplitude vanish for helicity conserving configurations.

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