Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extra vector-like matter and the lightest Higgs scalar boson mass in
  low-energy supersymmetry   The lightest Higgs scalar boson mass in supersymmetry can be raised
significantly by extra vector-like quark and lepton supermultiplets with large
Yukawa couplings but dominantly electroweak-singlet masses. I consider models
of this type that maintain perturbative gauge coupling unification. The impact
of the new particles on precision electroweak observables is found to be
moderate, with the fit to Z-pole data as good or better than that of the
Standard Model even if the new Yukawa couplings are as large as their
fixed-point values and the extra vector-like quark masses are as light as 400
GeV. I study the size of corrections to the lightest Higgs boson mass, taking
into account the fixed-point behavior of the scalar trilinear couplings. I also
discuss the decay branchings ratios of the lightest new quarks and leptons and
general features of the resulting collider signatures.

22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an