$K_L \to π^0 ν\barν$ in Little Higgs model
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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.
formatting changed, some typos in expressions corrected, some references added
formatting changed, some typos in expressions corrected, some references added