Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unique Higgs boson signature at colliders   The HyperCP collaboration has observed three events for the decay $\Sigma^+
\to p \mu^+ \mu^-$. The three events may be interpreted as a new narrow-width
CP-odd scalar $a$ with the mass $214.3 \pm 0.5$ MeV. Here $a$ decays dominantly
into di-muon ($\mu^+\mu^-$). As the consequence of tiny mass difference between
$m_a$ and 2$m_\mu$ ($2 m_{\mu} \approx$ 211.3 MeV), di-muon will be boosted to
almost the same direction at colliders. Such kind of di-muon events have been
overlooked in the past experiments. Provided that the precision data preferred
light SM-like Higgs boson $h$ decays dominantly into $a a$ other than into
$b\bar b$, in order to be consistent with null Higgs boson search at LEP, the
$h\to aa \to 4\mu$ ($2\mu^+ 2\mu^-$) will be the unique Higgs boson signature
which has not been noticed before. The SM-like Higgs boson may hide itself from
the usual analysis of LEP and Tevatron experiments, which should be reanalyzed
in the light of new theoretical and experimental developments. In this paper,
we also investigate this unique Higgs boson signature at colliders and conclude
that the SM-like Higgs boson could be discovered with rather low integrated
luminosity, provided that the $h\to 4\mu$ reconstruction efficiency is not
extremely low. It is not impossible that such kind of unique Higgs boson $4\mu$
events are now lurking in the existing LEP and/or Tevatron data.

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The categories of this paper are: supr-con
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The categories of this paper are: acc-phys
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: nlin