Advances in Nuclear Physics

For the first half of the 20th Century, low-energy nuclear physics was one of the dominant foci of all of science. Then accelerators prospered and energies rose, leading to an increase of interest in the GeV regime and beyond. The three articles comprisin

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CONTRIBUTORS TO THIS VOLUME K. Amos, P. J. Dortmans School of Physics University of Melbourne Parkville, Victoria, Australia H. Feshbach Center for Theoretical Physics Laboratory for Nuclear Science and Department of Physics Massachusetts Institute of Technology Cambridge, Massachusetts

A. K. Kerman Center for Theoretical Physics Laboratory for Nuclear Science and Department of Physics Massachusetts Institute of Technology Cambridge, Massachusetts R. Rapp Department of Physics and Astronomy State University of New York Stony Brook, New York

H. V. von Geramb Theoretische Kernphysik Universität Hamburg Hamburg, Germany

J. Raynal Service de Physique Théorique C.E.-Saclay Gif-sur-Yvette Cedex, France

M. S. Hussein Instituto de Fisica Universidade de São Paulo São Paulo, SP, Brazil

O. K. Vorov Instituto de Fisica Universidade de São Paulo São Paulo, SP, Brazil

S. Karataglidis TRIUMF Vancouver, British Columbia, Canada

J. Wambach Institut für Kernphysik Technische Universität Darmstadt Darmstadt, Germany

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ADVANCES IN NUCLEAR PHYSICS Edited by

J. W. Negele Center for Theoretical Physics Massachusetts Institute of Technology Cambridge, Massachusetts

Erich Vogt Department of Physics University of British Columbia Vancouver, B.C., Canada

VOLUME 25

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‹.OXZHU$FDGHPLF3XEOLVKHUV 1HZ 300MeV. The review by Ray, Hoffman, and Coker [22] gives an appraisal of non-relativistic and relativistic models mostly suitable and tested in the highest energy domain which they demonstrate is affected by relativistic dynamics and kinematics, relativistic phase space effects, relativistic spin rotations, and boosts of the pair interaction into the proper reference frame. Nevertheless, many analyses of data belonging to this second domain of energy have been analyzed using the simpler non-relativistic treatments of NA scattering since the underlying equation of motion is the Schrödinger or, equivalently, the LS equation. In those studies, relativistic kinematics and two component spinor wave functions have been taken.

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There is an advantage in studying NA scattering below meson production threshold. For that energy domain, several high quality NN potentials now exist with which the NN observables and phase shifts are well fit [18, 34, 59, 60, 33, 35], Additionally, quantum inversion potentials [46, 61] have been developed from the current and extensive phase shifts SAID [15] and Nijmegen [33]. The quantum inversion method is a rig-

orous mathematical method developed by Gel’fand, Levitan, Marchenko and others for various purposes. The Gel’fand-Levitan-Marchenko integral equations are used to continue on-shell t matrices into the off-shell d

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