Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analyzing powers in $d(\vec{p}, pp)n$ at intermediate and large
  scattering angles at $190$~MeV   Understanding of the exact nature of three-nucleon forces is the most
challenging topic in the field of nuclear physics. Three-nucleon break-up
reaction is a good tool to look into the underlying dynamics of the nuclear
force, thanks to its rich kinematical phase space which has different levels of
sensitivity to three-nucleon force effects. The recent studies on few-nucleon
systems have revealed that the current nuclear force models cannot describe
nucleon-deuteron scattering data accurately. In the present work, the analyzing
powers of the proton-deuteron break-up reaction obtained using a 190 MeV
polarized proton beam will be discussed. We present for the first time the
vector analyzing powers for the kinematics in which one of the protons scatters
to intermediate and large scattering angles at this energy. The results show a
fairly good agreement with various theoretical predictions for both
intermediate and large scattering angles of the break-up phase space.

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The categories of this paper are: math
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
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The categories of this paper are: cs
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci