Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurements of Rayleigh Ratios in Linear Alkylbenzene   In present work an experiment has been designed to measure the Rayleigh ratio
directly at $405$ nm and $432$ nm for linear alkylbenzene which is a common
solvent used in liquid scintillator detectors of neutrino experiments. The
perpendicularly polarized Rayleigh ratio is determined to be $(4.52\pm
0.28)\times 10^{-6}$ m$^{-1}\cdot$ sr$^{-1}$ at $405$ nm and $(3.82\pm
0.24)\times 10^{-6}$ m$^{-1}\cdot$ sr$^{-1}$ at $432$ nm, and the corresponding
Rayleigh scattering length is $L_{Ray} = 22.9\pm 0.3(\mathrm{stat.})\pm
1.7(\mathrm{sys.})$ m at $405$ nm and $L_{Ray}= 27.0\pm 0.9(\mathrm{stat.})\pm
1.8(\mathrm{sys.})$ m at $432$ nm.

26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th