One-loop Radiative Corrections to the $ρ$ Parameter in the Left Right Twin Higgs Model

Dong-Won Jung; Jae Yong Lee

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arXiv · hep-ph/0701071

One-loop Radiative Corrections to the $ρ$ Parameter in the Left Right Twin Higgs Model

Dong-Won Jung·Jae Yong Lee

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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 heavy fermion and scalar loops. Numerical analysis indicates that the one-loop corrections are dominant over the tree-level contributions in most regions of parameter space. The experimentally allowed values of the $ρ$-parameter divide the allowed parameter space into two regions; less than $670 {\rm GeV}$ and larger than $1100 {\rm GeV}$ roughly, for the symmetry breaking scale $f$. Therefore our result significantly reduces the parameter space which are favorably accessible to the LHC.

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BibTeX RIS

Dong-Won Jung, Jae Yong Lee. 2013-05-02. One-loop Radiative Corrections to the $ρ$ Parameter in the Left Right Twin Higgs Model. https://arxiv.org/abs/hep-ph/0701071

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