Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Astrophage of neutron stars from supersymmetric dark matter Q-balls   The gauge-mediated model of supersymmetry breaking implies that stable
non-topological solitons, Q-balls, could form in the early universe and
comprise the dark matter. It is shown that the inclusion of the effects from
gravity-mediation set an upper limit on the size of Q-balls. When in a dense
baryonic environment Q-balls grow until reaching this limiting size at which
point they fragment into two equal-sized Q-balls. This Q-splitting process will
rapidly destroy a neutron star that absorbs even one Q-ball. The new limits on
Q-ball dark matter require an ultralight gravitino m_3/2 < keV, naturally
avoiding the gravitino overclosure problem, and providing the MSSM with a dark
matter candidate where gravitino dark matter is not viable.

27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc