Squark Cascade Decays to Charginos/Neutralinos: Gluon Radiation

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} dec...

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Bibliographic Details
Published in:arXiv.org 2008-03
Main Authors: Horsky, Roman, Krämer, Michael, Mück, Alexander, Zerwas, Peter M
Format: Article
Language:English
Subjects:
Decay
Fermions
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.0803.2603