  Trapping of atoms and molecules in electrostatic, magnetic and optical traps
has enabled studying atomic and molecular interactions on a timescale of many
seconds, allowing observations of ultra-cold collisions and reactions. Here we
report the first magnetic deceleration and trapping of neutral carbon atoms in
a static magnetic trap. When co-trapping the carbon atoms with oxygen molecules
in a superconducting trap, the carbon signal decays in a non-exponential
manner, consistent with losses resulting from atom-molecule collisions. Our
findings pave the way to studying both elastic and inelastic collisions of
species that cannot be laser cooled, and specifically may facilitate the
observation of reactions at low temperatures, such as C + O2 --> CO + O, which
is important in interstellar chemistry.
