Axigluon signatures at hadron colliders - High Energy Physics - PhenomenologyReportar como inadecuado




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Abstract: Axigluons are colored heavy neutral gauge boson that are predicted by sometheories. The most important model-independent manifestation of axigluons isthe generation of a forward-backward asymmetry in top-antitop quark productionat $p\bar{p}$ collisions which originates from the charge asymmetry. We updateour previous analysis for the inclusive QCD induced forward-backward asymmetryand define a new observable which is more sensitive to the effect than theforward-backward asymmetry. We find a lower limit of 1.4 TeV at 90% C.L. onthe axigluon mass from recent measurements of the asymmetry at Tevatron, andextend the analysis to LHC in suitably selected samples. Like at Tevatron, thecharge asymmetry can probe larger values of the axigluon mass than the dijetmass distribution.



Autor: German Rodrigo

Fuente: https://arxiv.org/







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