Search for single production of vector-like top partner decaying to Wb at eγ collision

Bingfang Yang (Aff2, 0000 0004 0605 6769, College of Physics and Materials Science, Henan Normal University, 453007, Xinxiang, China) ; Hongbo Shao (Aff3, 0000 0001 2291 4530, College of Science, Hebei Agricultural University, 071000, Baoding, China) ; Jinzhong Han (Aff1, 0000 0000 9940 7302, School of Physics and Telecommunications Engineering, Zhoukou Normal University, 466001, Henan, China)

In a simplified model including an SU (2) singlet T quark with charge 2/3, we investigate the single vector-like T production at the high energy eγ collision. We study the observability of the vector-like T focusing on the T→Wb decay channel with W→lν¯ at s=2.0 TeV. In this analysis, only two free parameters are involved, namely the T quark coupling strength for single production g∗ and the mass mT . We scan the parameter space and find that the correlation region of g∗∈[0.24,0.5] and mT∈[800,1360] GeV can be excluded with integrated luminosity L=100fb-1 and the correlation region of g∗∈[0.13,0.5] and mT∈[800,1620] GeV can be excluded with integrated luminosity L=1000fb-1 at 2σ level.

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      "title": "Search for single production of vector-like top partner decaying to Wb at e\u03b3 collision"
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      "value": "In a simplified model including an SU (2) singlet T quark with charge 2/3, we investigate the single vector-like T production at the high energy e\u03b3 collision. We study the observability of the vector-like T focusing on the T\u2192Wb decay channel with W\u2192l\u03bd\u00af at s=2.0 TeV. In this analysis, only two free parameters are involved, namely the T quark coupling strength for single production g\u2217 and the mass mT . We scan the parameter space and find that the correlation region of g\u2217\u2208[0.24,0.5] and mT\u2208[800,1360] GeV can be excluded with integrated luminosity L=100fb-1 and the correlation region of g\u2217\u2208[0.13,0.5] and mT\u2208[800,1620] GeV can be excluded with integrated luminosity L=1000fb-1 at 2\u03c3 level."
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Published on:
05 March 2018
Publisher:
Springer/Società Italiana di Fisica
Published in:
European Physical Journal C (2018)
Issue 3
DOI:
https://doi.org/10.1140/epjc/s10052-018-5671-x
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

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