Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resonance saturation for four-nucleon operators   In the modern description of nuclear forces based on chiral effective field
theory, four-nucleon operators with unknown coupling constants appear. These
couplings can be fixed by a fit to the low partial waves of neutron-proton
scattering. We show that the so determined numerical values can be understood
on the basis of phenomenological one-boson-exchange models. We also extract
these values from various modern high accuracy nucleon-nucleon potentials and
demonstrate their consistency and remarkable agreement with the values in the
chiral effective field theory approach. This paves the way for estimating the
low-energy constants of operators with more nucleon fields and/or external
probes.

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The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
3
The categories of this paper are: physics