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arXiv · hep-ph/9702350

New Supersymmetric Contributions to $t->cV$

Jorge L. Lopez·D. V. Nanopoulos·Raghavan Rangarajan
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Abstract

We calculate the electroweak-like one-loop supersymmetric contributions to the rare and flavor-violating decay of the top quark into a charm quark and a gauge boson: $t->c V$, with $V=γ,Z,g$. We consider loops of both charginos and down-like squarks (where we identify and correct an error in the literature) and neutralinos and up-like squarks (which have not been calculated before). We also account for left-right and generational squark mixing. Our numerical results indicate that supersymmetric contributions to $t->cV$ can be upto 5 orders of magnitude larger than their Standard Model counterparts. However, they still fall short of the sensitivity expected at the next-generation top-quark factories.

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Jorge L. Lopez, D. V. Nanopoulos, Raghavan Rangarajan. 1997-06-06. New Supersymmetric Contributions to $t->cV$. https://doi.org/10.1103/physrevd.56.3100

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