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arxiv: 0803.2603 · v1 · submitted 2008-03-18 · ✦ hep-ph · hep-ex

Squark Cascade Decays to Charginos/Neutralinos: Gluon Radiation

classification ✦ hep-ph hep-ex
keywords decaystildecharginoscorrectionsdistributionsgluonneutralinosradiation
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The momentum spectrum and the polarization of charginos and neutralinos in squark decays are affected by gluon radiation in the decay process \tilde{q} \to q \tilde{\chi} (g). We determine these corrections and study their impact on the [ql] invariant mass distributions for leptonic \tilde{\chi} decays. The higher-order corrections, though small in general, can be sizeable near pronounced edges of the final-state distributions.

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