Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Refined Mass Estimate for Bilepton Gauge Boson   Using the most recent experimental data on parameters of the standard
electroweak theory, as well as renormalisation group equations with a boundary
matching condition, we derive a refined and more accurate value for the mass of
the doubly-charged bilepton ($Y^{\pm\pm}$) occurring in the spontaneous
breaking of the gauge group $SU(3)_L \times U(1)_X$ to the standard electroweak
gauge group $SU(2)_L \times U(1)_Y$. Our result is $M(Y^{\pm\pm}) = (1.29 \pm
0.06)$ TeV.

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The categories of this paper are: ao-sci
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The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
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The categories of this paper are: math
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The categories of this paper are: astro-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: supr-con
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga