Effective field theory of the deuteron with dibaryon field

Details Effective field theory of the deuteron with dibaryon field Effective field theory of the deuteron with dibaryon field

2004-07-28

arxiv.org/abs/nucl-th/0407103v2

Phys.Rev. C72 (2005) 014008

Physics

Nuclear Physics

Nuclear Theory

25 pages and 11 figures; 16 references added, Figure 6 and 7 replotted, text revised a lot. To be published in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.72.014008

Pionless effective field theory with dibaryon fields is reexamined for observables involving the deuteron. The electromagnetic form factors of the deuteron and the total cross sections of radiative neutron capture on the proton, $np \to d\gamma$, are calculated. The low energy constants of vector(photon)-dibaryon-dibaryon vertices in the effective lagrangian are fixed primarily by the one-body vector(photon)-nucleon-nucleon interactions. This scheme for fixing the values of the low energy constants satisfactorily reproduces the results of the effective range theory. We also show that, by including higher order corrections, one can obtain results that are close to those of Argonne v18 potential model.

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