Münster 2002 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 9: Poster Session: Theory

HK 9.9: Poster

Tuesday, March 12, 2002, 10:30–12:45, Foyer Chemie

Chiral 2π-exchange NN-potentials: Relativistic 1/M²-corrections — •Norbert Kaiser — Physik-Department T39, TU-München, 85747 Garching

We calculate in baryon chiral perturbation theory the relativistic 1/M²-corrections to the leading order two-pion exchange diagrams. We give explicit expressions for the corresponding one-loop NN-amplitudes in momentum space. The resulting isovector central and isoscalar spin-spin and tensor NN-amplitudes involve non-static terms proportional to the squared nucleon center-of-mass momentum p². From the two-pion exchange box diagrams we obtain an isoscalar quadratic spin-orbit NN-amplitude. We give also analytical expressions for the corresponding NN-potentials in coordinate space. The diagrammatic results presented here make the chiral NN-potential complete at next-to-next-to-next-to-leading order.

[1] N. Kaiser, Phys.Rev.C65 (2002) 0170xx (in print), nucl-th/0109071. Work supported in part by BMBF, DFG and GSI.