Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Origin of the tentative AMS antihelium events   We demonstrate that the tentative detection of a few antihelium events with
the Alpha Magnetic Spectrometer (AMS) on board the International Space Station
can, in principle, be ascribed to the annihilation or decay of Galactic dark
matter, when accounting for uncertainties in the coalescence process leading to
the formation of antinuclei. We show that the predicted antiproton rate,
assuming the antihelium events came from dark matter, is marginally consistent
with AMS data, as is the antideuteron rate with current available constraints.
We argue that a dark matter origin can be tested with better constraints on the
coalescence process, better control of misidentified events, and with future
antideuteron data.

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The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org