Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hadron Energy Reconstruction for the ATLAS Barrel Prototype Combined
  Calorimeter in the Framework of the Non-parametrical Method   Hadron energy reconstruction for the Atlas barrel prototype combined
calorimeter, consisting of the lead-liquid argon electromagnetic part and the
iron-scintillator hadronic part, in the framework of the non-parametrical
method has been fulfilled. This method uses only the known e/h ratios and the
electron calibration constants and does not require the determination of any
parameters by a minimization technique and can be used for the fast energy
reconstruction in the first level trigger. The obtained reconstruction of the
mean values of energies is within $\pm 1%$ and the fractional energy resolution
is $[(58\pm3)% \sqrt{GeV}/\sqrt{E}+(2.5\pm0.3)%]\oplus (1.7\pm0.2) GeV/E$. The
obtained value of the e/h ratio for electromagnetic compartment of the combined
calorimeter is $1.74\pm0.04$ and agrees with the prediction that $e/h > 1.7$
for this electromagnetic calorimeter. The results of the study of the
longitudinal hadronic shower development are presented. The data have been
taken in the H8 beam line of the CERN SPS using pions of 10 -- 300 GeV.

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The categories of this paper are: q-bio
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The categories of this paper are: math
15
The categories of this paper are: nucl-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
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The categories of this paper are: stat
31
The categories of this paper are: ao-sci
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The categories of this paper are: chao-dyn
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The categories of this paper are: acc-phys
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The categories of this paper are: physics
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The categories of this paper are: comp-gas
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The categories of this paper are: gr-qc