2010/09/30 by Chuan-Hung Chen, G. Cvetic, Gorazd Cvetič +1 · 59 citations
Physics and Astronomy · #Asymmetry #Black Holes and Theoretical Physics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quark #Top quark #Unparticle physics #hep-ph
paper · pdf · doi:10.1016/j.physletb.2010.10.030
published in Physics Letters B 694(4-5), 393-397 (Elsevier BV) · 15 pages, 5 figures; various typos corrected, fig.3 has higher resolution, Ref.[16](2nd entry) is new; version to appear in Phys.Lett.B
openalex publication_date 2010/10/21 · arxiv created 2010/11/03 · arxiv updated 2011/04/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The updated CDF measurement of the forward–backward asymmetry AFB in the top quark production pp¯→tt¯ at Tevatron (with s=1.96TeV) 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 dU, which give the values of the AFB and of the total tt¯ production cross section compatible with the present measurements.