Journal
PHYSICAL REVIEW D
Volume 80, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.80.051701
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Funding
- Ministerio de Ciencia e Innovacion [FPA2007-60323]
- CPAN [CSD2007-00042]
- Generalitat Valenciana [PROMETEO/2008/069]
- European Commission MRTN FLAVIAnet [MRTN-CT-2006-035482]
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Recent measurements of the top quark charge asymmetry at Tevatron disfavor the existence of flavor universal axigluons and colorons at 2 sigma. In this letter, we explore the possibility of reconciling the data with these models and use the charge asymmetry and the invariant mass distribution of top-antitop quark pair events to constrain the mass and couplings of massive color-octet gauge bosons decaying to top quarks.
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