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arXiv · 0809.2327

Unparticle effects on top quark rare decays

T. M. Aliev·O. Cakir·K. O. Ozansoy
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Abstract

In this work we study the flavor changing neutral current(FCNC) decays of the top quark, $t\to cγ$ and $t\to c g$. The Standard Model, predictions for the branching ratios of these decays are about $\sim 5\times 10^{-14}$, and $\sim 1\times 10^{-12}$, respectively. The recent study presented by the ATLAS Collaboration gives a sensitivity on these branching ratios about $\sim 10^{-5}$ at $%95$ C.L. The parameter space of $λ$, $Λ$, and $d$ where the branching ratios of $t\to cγ$ and $t\to c g$ decays exceed these predictions is obtained.

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T. M. Aliev, O. Cakir, K. O. Ozansoy. 2008-09-24. Unparticle effects on top quark rare decays. https://doi.org/10.1016/j.physletb.2008.10.037

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