X iv : n uc l - th / 9 70 70 41 v 1 2 3 Ju l 1 99 7 Sum rules for isospin centroids in pick - up reactions on general multishell target states

- th / 9 80 20 05 v 3 6 F eb 1 99 9 1 Effective two - body interactions in the s - d shell nuclei from sum rules equations in transfer reactions

Average effective two-body interaction matrix elements in the s-d shell have been extracted from data on experimentally measured isospin centroids, by combining the recently derived new sum rules equations for pick-up reactions with similar known equations for stripping reactions performed on general multishell target states. Using this combination of stripping and pick-up equations, the averag...

th / 9 80 20 05 v 1 2 F eb 1 99 8 Effective two - body interactions in the s − d shell nuclei from sum rules equations in tranfer reactions

Average effective two-body interaction matrix elements in the s-d shell have been extracted, from data on experimentally measured isospin centroids, by combining the recently derived new sum rules equations for pick-up reactions with similar known equations for stripping reactions performed on general multishell target states. Using this combination of stripping and pick-up equations, the avera...

- th / 9 90 20 17 v 1 6 F eb 1 99 9 1 Study of effective interaction from single particle transfer reactions on f - p shell nuclei

The conventional search for an effective two-body interaction to be used in shellmodel studies involves numerically intensive mixed configuration calculations. It is, however, now known that meaningful averages of effective interaction matrix elements can be obtained through an alternative simpler method with the help of energy-weighted sum rules 1), 2), 3), 4), 5), 6). Monopole energy weighted...

ar X iv : n uc l - th / 9 80 70 53 v 1 2 1 Ju l 1 99 8 Amplitude Analysis

Even if a ‘complete set’ of experimental observables were measured for the elastic scattering or photo/electroproduction of pseudoscalar mesons, ambiguities would remain in the extracted partial-wave and isospin decomposed amplitudes. As these problems are not widely understood, the present work outlines the way model-dependence enters into analyses of data from both hadronic and electromagneti...

ar X iv : n uc l - th / 9 90 70 52 v 1 1 4 Ju l 1 99 9 K − and p̄ deeply bound atomic states