The Role of Δ-Resonance in Chiral Few Nucleon Forces
Article
First Online:
Received:
Accepted:
Abstract
Description of light nuclei and low energy nuclear reactions can be given in a model-independent way by using chiral effective field theory of QCD. In this framework nuclear forces are described by pion and nucleon (Delta) rather than fundamental quark degrees of freedom in harmony with the symmetries of QCD. In this manuscript we will discuss state-of-the-art nuclear forces derived within this framework and present preliminary results on the three-body forces calculated up to next-to-next-to-next-to-leading order in chiral effective field theory with explicit Delta degrees of freedom.
Keywords
Goldstone Boson Nuclear Force Chiral Expansion Nucleon Force Chiral Effective Field Theory
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Preview
Unable to display preview. Download preview PDF.
References
- 1.Epelbaum E., HammerH.W. Meißner U.-G.: Modern theory of nuclear forces. Rev. Mod. Phys. 81, 1773 (2009) [arXiv:0811.1338 [nucl-th]]CrossRefADSGoogle Scholar
- 2.Hemmert T.R., HolsteinB.R. Kambor J.: Chiral Lagrangians and Delta (1232) interactions: formalism. J. Phys. G 24, 1831 (1998) [arXiv:hep-ph/9712496]CrossRefADSGoogle Scholar
- 3.Ordonez C., Ray L., van Kolck U.: The two-nucleon potential from chiral Lagrangians. Phys. Rev. C 53, 2086 (1996) [arXiv:hep-ph/9511380]CrossRefADSGoogle Scholar
- 4.Kaiser N., GerstendorferS. Weise W.: Peripheral N N scattering: role of Delta excitation, correlated two-pion and vector meson exchange. Nucl. Phys. A 637, 395 (1998) [arXiv:nucl-th/9802071]CrossRefADSGoogle Scholar
- 5.Krebs H., Epelbaum E., Meißner U.-G.: Nuclear forces with Delta-excitations up to next-to-next-to-leading order I: peripheral nucleon-nucleon waves. Eur. Phys. J. A 32, 127 (2007) [arXiv:nucl-th/0703087]CrossRefADSGoogle Scholar
- 6.Epelbaum E., Krebs H., Meißner U.-G.: Delta-excitations and the three-nucleon force. Nucl. Phys. A 806, 65 (2008) [arXiv:0712.1969 [nucl-th]]CrossRefADSGoogle Scholar
- 7.Epelbaum E., Krebs H., Meißner U.-G.: Isospin-breaking two-nucleon force with explicit Delta-excitations. Phys. Rev. C 77, 034006 (2008) [arXiv:0801.1299 [nucl-th]]Google Scholar
- 8.Bernard V., Epelbaum E., Krebs H., Meißner U.-G.: Subleading contributions to the chiral three-nucleon force I: long-range terms. Phys. Rev. C 77, 064004 (2008) [arXiv:0712.1967 [nucl-th]]CrossRefADSGoogle Scholar
Copyright information
© Springer-Verlag 2010