Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Target Space Supersymmetric Sigma Model Calculations   We briefly review the covariant formulation of the Green-Schwarz superstring
by Berkovits, and describe how a detailed tree-level and one-loop analysis of
this model leads, for the first time, to a derivation of the low-energy
effective action of the heterotic superstring while keeping target-space
supersymmetry manifest. The resulting low-energy theory is old-minimal
supergravity coupled to tensor multiplet. The dilaton is part of the
compensator multiplet.

21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas