Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Double spin asymmetry in dihadron production in SIDIS off the
  longitudinally polarized nucleon target   In this paper we study the double longitudinal spin asymmetry of dihadron
production in semi-inclusive deep inelastic scattering (SIDIS). We calculate a
unknown twist-3 dihadron fragmentation function $\widetilde{D}^\sphericalangle$
within a spectator model which has been used successfully in describing the
dihadron production in both the unpolarized and the single polarized processes.
The collinear picture, in which the transverse momentum of the final state
hadron pair is integrated out, has been considered. The $\cos\phi_R$ azimuthal
asymmetry arises from the coupling $e_L H_1^\sphericalangle$ and the coupling
$g_1 \widetilde{D}^\sphericalangle$ is studied. We estimate the $\cos\phi_R$
asymmetry at the kinematics of COMPASS and compare with the data. The
prediction at the future Electron Ion Collider (EIC) has also been presented.

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The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
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: hep-th
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The categories of this paper are: alg-geom
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The categories of this paper are: funct-an
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat