Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Excited Dark Matter versus PAMELA/Fermi   Excitation of multicomponent dark matter in the galactic center has been
proposed as the source of low-energy positrons that produce the excess 511 keV
gamma rays that have been observed by INTEGRAL. Such models have also been
promoted to explain excess high-energy electrons/positrons observed by the
PAMELA, Fermi/LAT and H.E.S.S. experiments. We investigate whether one model
can simultaneously fit all three anomalies, in addition to further constraints
from inverse Compton scattering by the high-energy leptons. We find models that
fit both the 511 keV and PAMELA excesses at dark matter masses M < 400 GeV, but
not the Fermi lepton excess. The conflict arises because a more cuspy DM halo
profile is needed to match the observed 511 keV signal than is compatible with
inverse Compton constraints at larger DM masses.

11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn