Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polarizabilities and parity non-conservation in the Cs atom and limits
  on the deviation from the standard electroweak model   A semi-empirical calculation of the 6s - 7s Stark amplitude $\alpha$ in Cs
has been performed using the most accurate measurements and calculations of the
electromagnetic amplitudes available. This is then used to extract the
parameters of the electroweak theory from experimental data. The results are:
$\alpha = 269.0 (1.3) a_0^3$, weak charge of Cs $Q_W = -72.41(25)_{exp}
(80)_{theor}$, deviation from the Standard model $S = -1.0(.3)_{exp}
(1.0)_{theor}$ and limit on the mass of the extra Z-boson in SO(10) model
$M_{Z_x} > 550 GeV$.

24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat