Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1995-09-19
Phys.Rev.C54:2851-2868,1996
Physics
Nuclear Physics
Nuclear Theory
28 pages RevTeX, 8 postscript figures; revised version as to appear in Phys. Rev. C
Scientific paper
10.1103/PhysRevC.54.2851
Pion-meson-exchange nucleon-nucleon potentials are derived for two nucleons in the intermediate states. The mesons we include are (i) pseudoscalar mesons: $\pi, \eta, \eta'$; (ii) vector mesons: $\rho, \omega, \phi$; (iii) scalar mesons: $a_{0}(980), \varepsilon(760), f_{0}(975)$; and (iv) the $J=0$ contribution from the Pomeron. Strong dynamical pair suppression is assumed, and at the nucleon-nucleon-meson vertices Gaussian form factors are incorporated into the relativistic two-body framework using a dispersion representation for the pion- and meson-exchange amplitudes. The Fourier transformations are performed using factorization techniques for the energy denominators. The potentials are first calculated in the adiabatic approximation to all planar and crossed three-dimensional momentum-space $\pi$-meson diagrams. Next, we calculate the $1/M$ corrections.
Rijken TH. A.
Stoks V. G. J.
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