Study of anomalous top quark FCNC interactions via $tW$-channel of single top

Details Study of anomalous top quark FCNC interactions via $tW$-channel of single top Study of anomalous top quark FCNC interactions via $tW$-channel of single top

2010-06-09

arxiv.org/abs/1006.1717v2

Phys. Rev. D 81, 117502 (2010)

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 4 figures, new references added

Scientific paper

10.1103/PhysRevD.81.117502

The potential of the LHC for investigation of anomalous top quark interactions with gluon ($tug,tcg$) through the production of $tW$-channel of single top quark is studied. In the Standard Model, the single top quarks in the $tW$-channel mode are charge symmetric meaning that $\sigma(pp\to t+W^{-}) = \sigma(pp\to \bar{t}+W^{+})$. However, the presence of anomalous FCNC couplings leads to charge asymmetry. In this paper a method is proposed in which this charge asymmetry may be used to constrain anomalous FCNC couplings. The strength of resulting constraints is estimated for the LHC for the center of mass energies of 7 and 14 TeV.

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