Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polarized beams at HERA : analyzing the chiral structure of contact
  interactions   In the context of HERA with polarized lepton and proton beams, we explore the
sensitivity of the collider to contact interactions. We emphasize that the
measurement of longitudinal spin asymmetries in such a polarized context could
give some crucial informations on the chiral structure of these hypothetical
new interactions.

37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex