Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Incident Velocity-Recoil Angle Distribution and Angular Recoil-Energy
  Spectrum of 3-Dimensional WIMP-Nucleus Scattering Events   In this paper, as a supplementary of our study on the angular distribution of
the recoil flux of WIMP-scattered target nuclei and on that of the WIMP
effective scattering velocity distribution, we investigate the scattering
probability distribution of the WIMP incident velocity versus the nuclear
recoil angle in narrow recoil energy windows for different WIMP masses and
target nuclei. Our simulation results show that, not only the velocity
distribution of incident halo WIMPs, but also a factor of the recoil angle
could affect the scattering probability distribution of the available incident
velocity-recoil angle combination in a given recoil energy window.
Consequently, the 1-D WIMP "effective" velocity distribution corresponding to
the considered narrow energy window would not be consistent with that cut
simply from the (generating) velocity distribution of incident halo WIMPs. And
its contribution to the differential WIMP-nucleus scattering event rate in the
considered energy window could thus not be simply estimated by integrating over
the 1-D theoretical velocity distribution (of entire halo WIMPs).

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The categories of this paper are: nlin
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: q-bio
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: econ