Phenomenology of the little Higgs model
By T. Han, H. Logan, B. McElrath, Lian-tao Wang. 2003
438 citations recorded by the source corpus.
We study the low-energy phenomenology of the little Higgs model. We first discuss the linearized effective theory of the ``littlest Higgs model'' and study the low-energy constraints on the model parameters. We identify sources of the corrections to low-energy observables, discuss model-dependent arbitrariness, and outline some possible directions of extensions of the model in order to evade the precision electroweak constraints. We then explore the characteristic signatures to test the model in the current and future collider experiments. We find that the CERN LHC has great potential to discover the new $\mathrm{SU}(2)$ gauge bosons and the possible new $U(1)$ gauge boson to the multi-TeV mass scale. Other states such as the colored vectorlike quark T and doubly charged Higgs boson ${\ensuremath{\Phi}}^{++}$ may also provide interesting signals. At a linear collider, precision measurements on the triple gauge boson couplings could be sensitive to the new physics scale of a few TeV. We provide a comprehensive list of the linearized interactions and vertices for the littlest Higgs model in the appendices.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/6bc0b95019cbba995b36360a576710bb169a5f9b
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In Nuclear and High Energy Physics
Citations in the corpus
- TeV symmetry and the little hierarchy problem (2003, background): “Most of the collider phenomenology studies for little Higgs theories so far do not assume this new TeV symmetry, and the Standard Model fermions can interact directly with a single TeV gauge boson[34, 35, 36].”
- Interpreting LHC Higgs results from natural new physics perspective (2012, methodology): “in the Simplest Little Higgs model with an [SU(3)/SU(2)]2 coset structure [60–65] when taking the limit f2 f1.”
- Collider probes of axion-like particles (2017, methodology): “Concrete examples of such models include littleHiggs models, in which fermionic top partners can have very large Higgs couplings [94, 95], and triplet-doublet dark matter models with vector-like leptons [96, 97], which are generalizations of the Wino-Higgsino dark matter scenario in the minimal supe”