Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electromagnetic-induced fission of 238U projectile fragments, a test
  case for the production of spherical super-heavy nuclei   Isotopic series of 58 neutron-deficient secondary projectiles (205,206At,
205-209Rn, 208-212,217,218Fr, 211-223Ra, 215-226Ac, 221-229Th, 226-231Pa,
231-234U) were produced by projectile fragmentation using a 1 A GeV 238U beam.
Cross sections of fission induced by nuclear and electromagnetic interactions
in a secondary lead target were measured. They were found to vary smoothly as a
function of proton and neutron number of the fissioning system, also for nuclei
with large ground-state shell effects near the 126-neutron shell. No
stabilization against fission was observed for these nuclei at low excitation
energies. Consequences for the expectations on the production cross sections of
super-heavy nuclei are discussed.

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The categories of this paper are: chem-ph
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
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The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
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The categories of this paper are: solv-int
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The categories of this paper are: plasm-ph
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The categories of this paper are: eess
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th