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arXiv · 1011.0152

New Color-Octet Vector Boson?

Bo Xiao·You-kai Wang·Shou-hua Zhu
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Abstract

Both CDF and D0 at Tevatron reported the measurements of forward-backward asymmetry in top pair production, which showed possible deviation from the standard model QCD prediction. In this paper, we show that a new color-octet massive vector boson with mass just above twice that of top quark can simultaneously account for the asymmetry and differential distribution $d\sigma/dM_{t\bar t}$ in top pair production, without conflict with other measurements for example di-jet production. The new particle can be discovered and studied at the more powerful Large Hadron Collider.

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Bo Xiao, You-kai Wang, Shou-hua Zhu. 2010-10-31. New Color-Octet Vector Boson?. https://arxiv.org/abs/1011.0152

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