New Color-Octet Vector Boson?

2010/10/31 by Bo Xiao, Bo-Wen Xiao, You-kai Wang +4 · 3 citations
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.1011.0152

4 pages, 3 figures, 1 table

arxiv created 2010/10/31 · openalex publication_date 2010/10/31 · arxiv updated 2010/11/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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 dσ/dM_{t 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.

Cited by

• One-loop helicity amplitudes for top quark pair production in Randall-Sundrum model
• ChargedZ′to conciliate the apparent disagreement betweentt¯Tevatron forward-backward asymmetry and LHC charge asymmetry
• Light axigluon explanation of the Tevatrontt¯asymmetry and multijet signals at the LHC

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