2010/04/30 by Zhe Dong, Tao Han, Min-xin Huang +1 · 27 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Invariant mass #Large extra dimension #Non-critical string theory #Pair production #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quark #String (physics) #String duality #String theory #Top quark #hep-ex #hep-ph #hep-th
paper · pdf · doi:10.1007/jhep09(2010)048
published in Journal of High Energy Physics 2010(9) (Springer Nature) · 22 pages, 6 figures
arxiv created 2010/04/30 · openalex publication_date 2010/09/01 · arxiv updated 2014/11/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the discovery potential of string resonances decaying to tt final state at the LHC. We point out that top quark pair production is a promising and an advantageous channel for studying such resonances, due to their low Standard Model background and unique kinematics. We study the invariant mass distribution and angular dependence of the top pair production cross section via exchanges of string resonances. The mass ratios of these resonances and the unusual angular distribution may help identify their fundamental properties and distinguish them from other new physics. We find that string resonances for a string scale below 4 TeV can be detected via the tt channel, either from reconstructing the tt semi-leptonic decay or recent techniques in identifying highly boosted tops.