Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mass and angular momentum of black holes in low-energy heterotic string
  theory   We investigate conserved charges in the low-energy effective field theory
describing heterotic string theory. Starting with a general Lagrangian that
consists of a metric, a scalar field, a vector gauge field, together with a
two-form potential, we derive off-shell Noether potentials of the Lagrangian
and generalize the Abbott-Deser-Tekin (ADT) formalism to the off-shell level by
establishing one-to-one correspondence between the ADT potential and the
off-shell Noether potential. It is proved that the off-shell generalized ADT
formalism is conformally invariant. Then we apply the formulation to compute
mass and angular momentum of the four-dimensional Kerr-Sen black hole and the
five-dimensional rotating charged black string in the string frame without a
necessity to transform the metrics into the Einstein frame.

26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol