Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Faddeev approach to the reaction $K^- d \to \pi \Sigma n$ at $p_{K} = 1$
  GeV/c   The reaction $K^-d \to \pi \Sigma n$ is studied within a Faddeev-type
approach, with emphasis on the specific kinematics of the E31 experiment at
J-PARC, i.e. $K^-$ beam momentum of $p_K = 1$ GeV/c and neutron angle of
$\theta_n=0^\circ$. The employed Faddeev approach requires as main input
amplitudes for the two-body subsystems $\bar KN \to \bar KN$ and $\bar KN \to
\pi\Sigma$. For the latter results from recently published chiral unitary
models of the $\bar KN$ interaction are utilized. The $\bar KN \to \bar KN$
amplitude itself, however, is taken from a recent partial-wave analysis. Due to
the large incoming momentum of the $K^-$, the $\bar KN$ interaction is probed
in a kinematical regime where those chiral potentials are no longer applicable.
A comparison of the predicted spectrum for various $\pi \Sigma$ charge channels
with preliminary data is made and reveals a remarkable agreement as far as the
magnitude and the line shape in general is concerned. Noticeable differences
observed in the $\pi\Sigma$ spectrum around the $\bar KN$ threshold, i.e. in
the region of the $\Lambda$(1405) resonance, indicate a sensitivity to the
details of the employed $\bar KN \to \pi\Sigma$ amplitudes and suggest that
pertinent high-precision data could indeed provide substantial constraints on
the structure of the $\Lambda$(1405).

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The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
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The categories of this paper are: econ
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas