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Título: | Perturbative nuclear physics |
Autor: | Beane, Silas R.; Kaplan, David B. CSIC; Vuorinen, Aleksi | Fecha de publicación: | 20-dic-2008 | Editor: | American Physical Society | Citación: | Physical review C: Nuclear physics 80(1): 011001.1-011001.4 (2009) | Resumen: | 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. | Descripción: | 4 pages, 3 figures.-- PACS number(s): 21.30.Fe, 12.39.Fe, 21.45.Bc | Versión del editor: | http://dx.doi.org/10.1103/PhysRevC.80.011001 | URI: | http://hdl.handle.net/10261/17798 | DOI: | 10.1103/PhysRevC.80.011001 | ISSN: | 0556-2813 |
Aparece en las colecciones: | (IFT) Artículos |
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e011001.pdf | 135,6 kB | Adobe PDF | Visualizar/Abrir |
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