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Title

Perturbative nuclear physics

AuthorsBeane, Silas R.; Kaplan, David B. CSIC; Vuorinen, Aleksi
Issue Date20-Dec-2008
PublisherAmerican Physical Society
CitationPhysical review C: Nuclear physics 80(1): 011001.1-011001.4 (2009)
AbstractWe 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.
Description4 pages, 3 figures.-- PACS number(s): 21.30.Fe, 12.39.Fe, 21.45.Bc
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevC.80.011001
URIhttp://hdl.handle.net/10261/17798
DOI10.1103/PhysRevC.80.011001
ISSN0556-2813
Appears in Collections:(IFT) Artículos




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