Three- and four-nucleon systems from chiral effective field theory

Citation
E. Epelbaum et al., Three- and four-nucleon systems from chiral effective field theory, PHYS REV L, 86(21), 2001, pp. 4787-4790
Citations number
38
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
86
Issue
21
Year of publication
2001
Pages
4787 - 4790
Database
ISI
SICI code
0031-9007(20010521)86:21<4787:TAFSFC>2.0.ZU;2-0
Abstract
Recently developed chiral nucleon-nucleon (NN) forces at next-to-leading or der (NLO), that describe NN phase shifts up to about 100 MeV fairly well, h ave been applied to 3N and 4N systems. Faddeev-Yakubovsky equations have be en solved rigorously. The resulting 3N and 4N binding energies are in the s ame range as found using standard NN potentials. In addition, low-energy 3N scattering observables are very well reproduced as for standard NN forces. The long-standing A,, puzzle is absent at NLO. The cutoff dependence of th e scattering observables is rather weak.