Probing Non-standard Top Couplings Using spin-correlation

Details Probing Non-standard Top Couplings Using spin-correlation Probing Non-standard Top Couplings Using spin-correlation

1996-10-15

arxiv.org/abs/hep-ph/9610368v1

Phys.Rev. D55 (1997) 4430-4434

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX2e, 12 pages and 3 figure embedded using the package{graphicx}

Scientific paper

Top spin correlation has been shown to be nontrivial in hadronic top-pair production, and can be realized by the asymmetries of the decay products of the top quark and antiquark. We show in this work that the top spin correlation is a sensitive probe to the anomalous top-quark couplings beyond the standard model. Specifically, we look at the anomalous chromomagnetic and chromoelectric dipole moments, as well as a right-handed component in the weak decay of the top quark. We found a few measurable asymmetries formed by the decay products of the top-quark pair that vary in accord with the spin correlation.

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