Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collider signatures of mirror fermions in the framework of Left Right
  Mirror Model   The idea of left-right symmetry with mirror fermions is very appealing from
the symmetry point of view. In this picture, unlike the Standard Model, the
symmetry is not only left-right symmetric, but each left handed fermion
multiplet is accompanied by new right handed fermion multiplet of opposite
chirality. In this work, we consider a gauge symmetry, $SU(3)_c \otimes
SU(2)_L\otimes SU(2)_R \otimes U(1)_{Y^\prime}$ supplemented by a discrete
$Z_2$ symmetry. Instead of having right handed multiplets for each left handed
multiplets of the same fermions as in the usual left-right model, the mirror
model include right handed doublets involving new fermions (called mirrors),
and similarly for each right handed singlet, there are corresponding mirror
singlets. Thus the gauge anomaly is naturally absent in this model, and the
model also provide a solution for the strong CP problem because of parity
conservation. The first stage of symmetry breaking is achieved by a doublet
mirror Higgs with a vacuum expectation value $\simeq 10^7$ GeV, needed to
explain the neutrino mass $\simeq 10^{-11}$ GeV. The mirror fermions can mix
with the ordinary fermions via a scalar which is singlet under the gauge
symmetry. In this model, only light mirror particles, having masses in the few
hundred GeV range are $\hat{e}, \hat{u}, \hat{d}$ with well-defined spectrum.
$\hat{u}$ and $\hat{d}$ can be pair produced at the LHC, and can be detected as
($u Z$) and ($d Z$) resonances. We discuss the signals of these mirror fermions
at the LHC, and find that the reach at the LHC can be as large as $m_{\hat
q}\simeq 800$ GeV.

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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
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The categories of this paper are: funct-an
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The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat