Search for W′ signal in single top quark production at the LHCSupported by the National Natural Science Foundation of China (NSFC) (11325525, 11635009, 11775130, 11447009, 11305049) and Natural Science Foundation of Shandong Province (ZR2017JL006, ZR2017MA002)
Fei Huang (School of Physics, Shandong University, Jinan 250100, China); Hong-Lei Li (School of Physics and Technology, University of Jinan, Jinan 250022, China); Shi-Yuan Li (School of Physics, Shandong University, Jinan 250100, China); Zong-Guo Si (School of Physics, Shandong University, Jinan 250100, China, CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China); Wei Su (School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China, CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China); et al - Show all 6 authors
Heavy charged gauge bosons are proposed in some theories beyond the standard model. We explore the discovery potential for with top quark semi-leptonic decay at the LHC. We concentrate on the new physics signal search with the deviation from the standard model prediction if the resonance peak of W′ cannot be observed directly. Signal events with two jets plus one charged lepton and missing energy are simulated, together with the dominant standard model backgrounds. In this paper, it is found that suitable cuts on the kinematic observables can effectively suppress the standard model backgrounds, so that it is possible to search for a W′ signal at the LHC if its mass is less than 6.6 TeV.
