2013/09/21 by Xing-Dao Guo, Yinjie Zhang, Yin-Jie Zhang +11
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.1309.5419
8 figures
arxiv created 2013/09/21 · openalex publication_date 2013/09/21 · arxiv updated 2013/09/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We calculate the forward backward asymmetry of the top-pair production at TEVATRON up to next to leading order (NLO) in the little Higgs model (LHM). We find that the contribution of ZH can be large enough to make up the gap between standard model (SM) prediction and data. With the database of 7.65±0.20±0.36 pb, therefore, the parameter space for flavor-changing coupling of ZH is constrained. Thus this model can result in the required asymmetry while the total cross section of top-pair production remaining consistent with data.