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arXiv · hep-ph/0103159

Gauge Invariance, Color-Octet Vector Resonances and Double Technieta Production at the Tevatron

Alfonso R. Zerwekh·Rogerio Rosenfeld
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Abstract

We show that the usual vector meson dominance method does not apply directly to the mixing of a color-octet vector boson (color-octet technirho) with the gluon because of gauge invariance. We propose a gauge invariant method where one works in a physical basis with mass eigenstate fields. As a result, we show that the physical technirho does not couple to two gluons, contrary to the general belief. Consequences for the production of a pair of color-octet, isosinglet technipions (technietas) at Fermilab is analysed by means of a simulation of the signal and background, including kinematical cuts. We find that the signal is too small to be observed.

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Alfonso R. Zerwekh, Rogerio Rosenfeld. 2001-03-14. Gauge Invariance, Color-Octet Vector Resonances and Double Technieta Production at the Tevatron. https://doi.org/10.1016/s0370-2693(01)00222-2

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