Polarized Single Top Quark Production in eγCollision and Anomalous Wtb Couplings

Details Polarized Single Top Quark Production in eγCollision and Anomalous Wtb Couplings Polarized Single Top Quark Production in eγCollision and Anomalous Wtb Couplings

2007-09-04

arxiv.org/abs/0709.0365v2

Eur.Phys.J.C54:435-441,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

published version

Scientific paper

10.1140/epjc/s10052-008-0543-4

We investigate the potential of $e\gamma$ collisions to probe anomalous $Wtb$ couplings via the polarized single top quark production process $e^{+} \gamma \to t \bar{b} \bar{\nu_{e}}$. We find 95% confidence level limits on the anomalous coupling parameters $F_{2L}$ and $F_{2R}$ with an integrated luminosity of $500 fb^{-1}$ and $\sqrt{s}=0.5, 1$ and 1.5 TeV energies. The effects of top quark spin polarization on the anomalous $Wtb$ couplings are discussed. It is shown that polarization leads to a considerable improvement in the sensitivity limits.

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