Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-precision measurement of total fission cross sections in spallation
  reactions of 208Pb and 238U   Total cross sections for proton- and deuteron-induced-fission of 208Pb and
238U have been determined in the energy range between 500 MeV and 1 GeV. The
experiment has been performed in inverse kinematics at GSI Darmstadt,
facilitating the counting of the projectiles and the identification of the
reaction products. High precision between 5 and 7 percent has been achieved by
individually counting the beam particles and by registering both fission
fragments in coincidence with high efficiency and full Z resolution. Fission
was clearly distinguished from other reaction channels. The results were found
to deviate by up to 30 percent from Prokofiev's systematics on total fission
cross sections. There is good agreement with an elaborate experiment performed
in direct kinematics.

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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: stat
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The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an