Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: One-loop Radiative Corrections to the rho Parameter in the Littlest
  Higgs Model   We perform a one-loop analysis of the rho parameter in the Littlest Higgs
model, including the logarithmically enhanced contributions from both fermion
and scalar loops. We find the one-loop contributions are comparable to the tree
level corrections in some regions of parameter space. The fermion loop
contribution dominates in the low cutoff scale f region. On the other hand, the
scalar loop contribution dominates in the high cutoff scale f region and it
grows with the cutoff scale f. This in turn implies an upper bound on the
cutoff scale. A low cutoff scale is allowed for a non-zero triplet VEV.
Constraints on various other parameters in the model are also discussed. The
role of triplet scalars in constructing a consistent renormalization scheme is
emphasized.

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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: cond-mat
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: supr-con
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: econ