On the flavor structure of the littlest Higgs model

Details On the flavor structure of the littlest Higgs model On the flavor structure of the littlest Higgs model

2007-10-23

arxiv.org/abs/0710.4293v1

JHEP 0712:074,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 1 figure

Scientific paper

10.1088/1126-6708/2007/12/074

We investigate the Yukawa sector for up-like quarks in the Lee's version of the Littlest Higgs model. We derive general quark mass and mixing formulae and study leading order contributions due to non-zero light quark masses. Relying on the unitarity of the generalized quark mixing matrix we obtain corrections to the CKM matrix elements. In this model FCNCs appear at the tree level and using leading order contributions we obtain the FCNC couplings for the up-like quark transitions. In light of recent experimental results on the D0 - D0bar transition we make predictions for xD as well as the D to mu+ mu- decay rate. Finally, we discuss probabilities for the t to c (u) Z transitions relevant for the LHC studies.

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