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Forward-backward asymmetry of top quark in unparticle physics
Chen, C.H.,Cvetic, G.,Kim, C.S. North-Holland Pub. Co 2011 Physics letters: B Vol.694 No.4
The updated CDF measurement of the forward-backward asymmetry A<SUB>FB</SUB> in the top quark production pp@?→tt@? at Tevatron (with s=1.96 TeV) shows a deviation of 2σ from the value predicted by the Standard QCD Model. We present calculation of this quantity in the scenario, where colored unparticle physics contributes to the s-channel of the process, and obtain the regions in the plane of the unparticle parameters λ and d<SUB>U</SUB>, which give the values of the A<SUB>FB</SUB> and of the total tt@? production cross section compatible with the present measurements.