Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Description of the Low-Energy Doublet Neutron-Deuteron Scattering on the
  Basis of the Triton Bound and Virtual State Parameters   Low-energy doublet neutron-deuteron scattering is described on the basis of
the triton bound and virtual state parameters - the energies and the nuclear
vertex constants of these states. The van Oers-Seagrave formula is derived from
the Bargmann representation of the S matrix for a system having two states. The
presence of a pole in this formula is shown to be a direct corollary of the
existence of a low-energy triton virtual state. Simple explicit expressions for
the nd scattering length and for the pole of the function $k\cot \delta $ are
obtained in terms of the triton bound and virtual state parameters. Numerical
calculations of the nd low-energy scattering parameters show their high
sensitivity to variations in the asymptotic normalization constant of the
virtual state $C_{v}^{2}$. The $C_{v}^{2}$ value fitted in our model to the
experimental result for the nd scattering length is $C_{v}^{2}=0.0592$.

23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci