Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: R-parity violation effect on the top-quark pair production at linear
  colliders   We investigate in detail the effects of the R-parity lepton number violation
in the minimal supersymmetric standard model (MSSM) on the top-quark pair
production via both $e^--e^+$ and $\gamma-\gamma$ collision modes at the linear
colliders. We find that with the present experimental constrained $\rlap/{R}$
parameters, the effect from $\rlap/{R}$ interactions on the processes
$e^+e^-\to t\bar{t}$ and $e^+e^- \to \gamma\gamma \to t\bar{t}$ could be
significant and may reach -30% and several percent, respectively. Our results
show that the $\rlap/{R}$ effects are sensitive to the c.m.s. energy and the
relevant $\rlap/{R}$ parameters. However, they are not sensitive to squark and
slepton masses when $m_{\tilde{q}} \geq 400 GeV$ (or $m_{\tilde{l}} \geq 300
GeV$) and are almost independent on the $\tan\beta$

22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci