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$K_L \to π^0 ν\barν$ in Little Higgs model

S. Rai Choudhury·Naveen Gaur·G. C. Joshi·B. H. J. McKellar
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Abstract

Little Higgs models provides us a new solution of the {\it hierarchy problem} of the SM. The problem is associated with the large difference in scales of SM and plank scale. One of the main features of these models is the existence of a vector like top quark. The CP violating $K_L \to π^0 ν\barν$ process n the SM model is dominated by top quark penguin & box graphs. We examine this process in the Little Higgs model where the top quark sector has significant differences from the Standard Model.

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S. Rai Choudhury, Naveen Gaur, G. C. Joshi, B. H. J. McKellar. 2005-01-26. $K_L \to π^0 ν\barν$ in Little Higgs model. https://arxiv.org/abs/hep-ph/0408125

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