Top-pions and single top production at HERA and THERA

Physics Letters B (Impact Factor: 6.13). 09/2004; 605(3-4). DOI: 10.1016/j.physletb.2004.11.053
Source: arXiv


We study single top quark production at the HERA and THERA colliders as coming from the FCNC vertices tcgamma and tcZ that appear at one loop level in Topcolor-assisted technicolor models (TC2). In contrast with previous expectations, we find that the production cross section is of order 10^-6 pb for HERA and 10^-4 pb for THERA (even lower that the SM prediction). Therefore, none of the two colliders are capable to probe the pseudoscalar top-pion or the scalar top-higgs predicted in TC2 models via single top production. Comment: 5 pages, 2 figures. Paragraph and 1 reference added

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Available from: F. Larios, Jan 09, 2013