Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Signature of the $\Lambda(1405)$ resonance in neutron spectra from the
  $K^-+d$ reaction   Neutron spectra from the reaction $K^-+d\rightarrow \pi+\Sigma+n$ were
calculated in the energy range $E^{cm}_{K^-}= 0-50\ MeV$ using coupled channel
Faddeev equations for the description of the $\bar KNN-\pi\Sigma N$ three-body
system. The aim was to trace the signature of the $\Lambda(1405)$ resonance in
the spectra. We found, that while in the direct spectra kinematic effects mask
completely the peak corresponding to the resonance, the deviation spectrum
method [1] is able to eliminate kinematics and differentiate between different
models of $\Lambda(1405)$. Four different phenomenological $\bar{K}N-\pi\Sigma$
interactions were used in order to study the effect of their pole positions on
the neutron spectra.

23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph