Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SIDIS in target fragmentation region   We shortly describe the leading twist formalism of spin and
transverse-momentum dependent fracture functions recently developed and present
results for the production of spinless hadrons in the target fragmentation
region (TFR) of SIDIS. In this case not all fracture functions can be accessed
and only a Sivers-like single spin azimuthal asymmetry shows up at LO
cross-section. Then, we demonstrate that the measurement of spin dependent
azimuthal asymmetries in double hadron production in polarized SIDIS -- with
one spinless hadron produced in the current fragmentation region (CFR) and
another in the TFR -- would provide access to all 16 leading twist fracture
functions.

27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
3
The categories of this paper are: physics