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R_b Constraints on Littlest Higgs Model with T-parity

arXiv:0908.2572 · doi:10.1103/PhysRevD.80.055027

Abstract

In the framework of the littlest Higgs model with T-parity (LHT), we study the contributions of the T-even and T-odd particles to the branching ratio R_b. We find that the precision data of R_b can give strong constraints on the masses of T-odd fermions.

11 pages, 5 figures