On the relativistic field theory model of the deuteron

We suggest a relativistic field theory model of the deuteron. We start from a local unphysical deuteron field, taken as a bound proton-neutron state at zero binding energy. Following the Nambu-Jona-Lasinio prescription we construct the physical deuteron field. We describe all parameters of the physical deuteron in the one-nucleon loop approximation and in leading order of the long-wavelength expansion. The one-pion exchange contribution to the binding energy calculated in the two-nucleon loop approximation is found small compared with that obtained in the one-nucleon loop one. The present model can be applied to the description of the decouplet of dibaryons 10f where the deuteron is the component with Y = 2 and I = 0.