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Advances in High Energy Physics
Volume 2017 (2017), Article ID 4693213, 9 pages
https://doi.org/10.1155/2017/4693213
Research Article

Searches for the Anomalous FCNC Top-Higgs Couplings with Polarized Electron Beam at the LHeC

Institute of Theoretical Physics, School of Physics & Optoelectronic Technology, Dalian University of Technology, No. 2 Linggong Road, Dalian, Liaoning 116024, China

Correspondence should be addressed to Hao Sun; nc.ude.tuld@nusoah

Received 29 September 2016; Revised 2 December 2016; Accepted 4 January 2017; Published 16 March 2017

Academic Editor: Burak Bilki

Copyright © 2017 XiaoJuan Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The publication of this article was funded by SCOAP3.

Abstract

We study the single top and Higgs associated production in the top-Higgs FCNC couplings at the LHeC with the electron beam energy of  GeV and  GeV and combination of a 7 TeV and 50 TeV proton beam. With the possibility of -beam polarization (, ), we distinct the cut-based method and the multivariate analysis- (MVA-) based method and compare with the current experimental and theoretical limits. It is shown that the branching ratio can be probed to 0.113 (0.093%), 0.071 (0.057%), 0.030 (0.022%), and 0.024 (0.019%) with the cut-based (MVA-based) analysis at (, ) = (7 TeV, 60 GeV), (, ) = (7 TeV, 120 GeV), (, ) = (50 TeV, 60 GeV), and (, ) = (50 TeV, 120 GeV) beam energy and 1 level. With the possibility of -beam polarization, the expected limits can be probed down to 0.090 (0.073%), 0.056 (0.045%), 0.024 (0.018%), and 0.019 (0.015%), respectively.