Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electrostatic deflection of the water molecule, a fundamental asymmetric
  rotor   An inhomogeneous electric field is used to study the deflection of a
supersonic beam of water molecules. The deflection profiles show strong
broadening accompanied by a small net displacement towards higher electric
fields. The profiles are in excellent agreement with a calculation of
rotational Stark shifts. The molecular rotational temperature being the only
adjustable parameter, beam deflection is found to offer an accurate and
practical means of determining this quantity. A pair of especially strongly
responding rotational sublevels, adding up to \approx 25% of the total beam
intensity, are readily separated by deflection, making them potentially useful
for further electrostatic manipulation.

22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con