Perturbative nuclear physics
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics, University of New Hampshire, Durham, New Hampshire 03824-3568 (United States)
- Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550 (United States)
- CERN, Physics Department, TH Unit, CH-1211 Geneva 23 (Switzerland)
We present a new formulation of effective field theory for nucleon-nucleon (NN) interactions that treats pion interactions perturbatively, and we offer evidence that the expansion converges satisfactorily to third order in the expansion, which we have computed analytically for s- and d-wave NN scattering. Starting with the Kaplan-Savage-Wise (KSW) expansion about the nontrivial fixed point corresponding to infinite NN scattering length, we cure the convergence problems with that theory by modifying the short distance pion interaction, essentially resumming those contributions in the contact interactions. This method appears to make possible a host of high precision analytic few-body calculations in nuclear physics.
- OSTI ID:
- 21289958
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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