LHC signals of T-odd heavy quarks in the Littlest Higgs model

Choudhury, Debajyoti ; Ghosh, Dilip Kumar (2007) LHC signals of T-odd heavy quarks in the Littlest Higgs model Journal of High Energy Physics, 2007 (08). No pp. given.. ISSN 1126-6708

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Official URL: http://iopscience.iop.org/1126-6708/2007/08/084

Related URL: http://dx.doi.org/10.1088/1126-6708/2007/08/084


Recently proposed Little Higgs models present a viable solution to the naturalness problem of the Standard Model. An additional discrete symmetry, called T-parity, has been included in the simplest Little Higgs models to evade the constraints arising from electroweak precision data. The Littlest Higgs model with T-parity (LHT) not only predicts a set of new fermions in addition to the heavy gauge bosons of the original Little Higgs model, but also provides a new candidate for dark matter. In this paper, we study two particularly interesting signatures of T-odd fermion pair production at the LHC, namely, (a) jj+l+l-+ ETand (b) jj+bb̅+l±+ET. Using a parton level Monte Carlo event generator, we evaluate both the signal as well as the standard model background profile for a selected set of model parameters thereby developing a good discriminator. Finally, we scan the parameter space and delineate the possible discovery region in the same.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics.
Keywords:Spontaneous Symmetry Breaking; Beyond Standard Model; Gauge Symmetry; Global Symmetries
ID Code:62190
Deposited On:20 Sep 2011 09:51
Last Modified:20 Sep 2011 09:51

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