Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New gauge bosons from the littlest Higgs model and the process
  $e^{+}e^{-}\to t\bar{t}$   In the context of the littlest Higgs$(LH)$ model, we study the process $
e^{+}e^{-}\to t\bar{t}$. We find that the new gauge bosons $Z_{H}$ and $B_{H}$
can produce significant correction effects on this process, which can be
further enhanced by the suitably polarized beams. In most of the parameter
space preferred by the electroweak precision data, the absolute value of the
relative correction parameter $R_{B_{H}}$ is larger than 5%. As long as
$1TeV\leq M_{Z_{H}}\leq 1.5TeV$ and $0.3\leq c\leq 0.5,$ the absolute value of
the relative correction parameter $R_{Z_{H}}$ is larger than 5%. With
reasonable values of the parameters of the $LH$ model, the possible signals of
the new gauge bosons $B_{H}$ and $Z_{H}$ can be detected via the process $
e^{+}e^{-} \to t\bar{t}$ in the future $LC$ experiments with the c.m. energy
$\sqrt{S}=800GeV$. $B_{H}$ exchange and $Z_{H}$ exchange can generate
significantly corrections to the forward-backward asymmetry $A_{FB}(t\bar{t})$
only in small part of the parameter space.

37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin