X iv : n uc l - th / 9 70 50 12 v 1 5 M ay 1 99 7 Momentum Dependence of Single Particle Potential in Dirac Brueckner Approach

ar X iv : n uc l - th / 9 90 50 04 v 1 4 M ay 1 99 9 Q 2 - Dependence of the Drell - Hearn - Gerasimov integral

The energy and four-momentum (Q 2) dependence of the photo-absorption cross section on the proton is calculated for helicity-1 2 and-3 2 states. An effective Lagrangian model is used, formulated in terms of meson and baryon degrees of freedom, which obeys crossing symmetry, unitarity, Lorentz and gauge invariance. The difference in the cross sections for the two helicity states, the Drell-Hearn...

ar X iv : n uc l - th / 9 90 50 49 v 1 2 1 M ay 1 99 9 η - and η ′ - meson production in the reaction pn → dM near threshold

ar X iv : n uc l - th / 9 90 50 49 v 2 2 6 M ay 1 99 9 η - and η ′ - meson production in the reaction pn → dM near threshold

ar X iv : n uc l - th / 9 60 30 11 v 2 6 M ay 1 99 6 TPR - 96 - 04 Lifetimes and Sizes from Two - Particle Correlation Functions

We discuss the Yano-Koonin-Podgoretskii (YKP) parametrization of the two-particle correlation function for azimuthally symmetric expanding sources. We derive model-independent expressions for the YKP fit parameters and discuss their physical interpretation. We use them to evaluate the YKP fit parameters and their momentum dependence for a simple model for the emission function and propose new s...

ar X iv : n uc l - th / 9 80 20 12 v 1 3 F eb 1 99 8 COMPUTATION OF TWO - BODY MATRIX ELEMENTS FROM THE ARGONNE v 18 POTENTIAL

We discuss the computation of two-body matrix elements from the Argonne v 18 interaction. The matrix elements calculation is presented both in particle-particle and in particle-hole angular momentum coupling. The procedures developed here can be applied to the case of other NN potentials, provided that they have a similar operator format.