Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ionization and scintillation response of high-pressure xenon gas to
  alpha particles   High-pressure xenon gas is an attractive detection medium for a variety of
applications in fundamental and applied physics. In this paper we study the
ionization and scintillation detection properties of xenon gas at 10 bar
pressure. For this purpose, we use a source of alpha particles in the NEXT-DEMO
time projection chamber, the large scale prototype of the NEXT-100 neutrinoless
double beta decay experiment, in three different drift electric field
configurations. We measure the ionization electron drift velocity and
longitudinal diffusion, and compare our results to expectations based on
available electron scattering cross sections on pure xenon. In addition, two
types of measurements addressing the connection between the ionization and
scintillation yields are performed. On the one hand we observe, for the first
time in xenon gas, large event-by-event correlated fluctuations between the
ionization and scintillation signals, similar to that already observed in
liquid xenon. On the other hand, we study the field dependence of the average
scintillation and ionization yields. Both types of measurements may shed light
on the mechanism of electron-ion recombination in xenon gas for highly-ionizing
particles. Finally, by comparing the response of alpha particles and electrons
in NEXT-DEMO, we find no evidence for quenching of the primary scintillation
light produced by alpha particles in the xenon gas.

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The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
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The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph