1-loop Corrections to the ρParameter in the Left-Right Twin Higgs Model

2007/10/13 by Dong-Won Jung, Jung, Dong-Won, Jae Yong Lee +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.0710.2589

Submitted for the SUSY07 proceedings, 4 pages, 3 eps figures

arxiv created 2007/10/16 · arxiv updated 2009/12/01

Abstract

We implement a one-loop analysis of the ρ parameter in the Left Right Twin Higgs model, including the logarithmically enhanced contributions from both fermion and scalar loops. Numerical results show that the one-loop contributions are dominant over the tree level corrections in most regions of parameter space. The experimentally allowed values of ρ-parameter divide the allowed parameter space into two regions; less than 670 \rm GeV and larger than 1100 \rm GeV roughly, for symmetry breaking scale f. Our numerical analysis significantly reduces the parameter space which are favorably accessible to the LHC.

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