arXiv:nucl-th/0407079·v1·Nuclear Theory
Quantum field theoretic model of metastable resonant spin-singlet state of the np pair
A.N.Ivanov🇦🇹 · M.Cargnelli🇦🇹 · M.Faber🇦🇹 · H.Fuhrmann🇦🇹 · V.A.Ivanova🇦🇹 · J.Marton🇦🇹 · N.I.Troitskaya🇷🇺 · J.Zmeskal🇦🇹
Abstract
The np pair in the spin-singlet state is treated as a Cooper np-pair within the extension of the Nambu-Jona-Lasinio model of light nuclei, describing the deuteron as a Cooper np-pair in the spin-triplet state. For the Cooper np-pair in the spin-singlet state we compute the binding energy and express the S-wave scattering length of np scattering in the spin-singlet state in terms of the binding energy. The theoretical value of the S-wave scattering length of np scattering agrees well with the experimental data.
Comments: 4 page, no figures, Latex