منابع مشابه
An Introduction to Few Nucleon Systems in Effective Field Theory
Progress in the Effective Field Theory of two and three nucleon systems is sketched, concentrating mainly on the low energy version in which pions are integrated out as explicit degrees of freedom. Examples given are: the extraction of nucleon polarisabilities from deuteron Compton scattering at very low energies; the energy dependence of the nucleon polarisabilities; three body forces and the ...
متن کاملEffective Field Theory and Isospin Violation in Few–Nucleon Systems
I discuss the leading and subleading isospin–breaking three–nucleon forces in the chiral effective field theory framework. INTRODUCTION Isospin violation has its origin within the Standard Model in the different masses of the up and down quarks and electromagnetic interaction. Its consequences for few–nucleon systems can be studied in a systematic way within chiral Effective Field Theory (EFT)....
متن کاملFew–Nucleon Forces and Systems in Chiral Effective Field Theory
We outline the structure of the nuclear force in the framework of chiral effective field theory of QCD and review recent applications to processes involving few nucleons.
متن کاملChiral effective field theory for few–nucleon systems
Chiral Effective Field Theory (EFT) has become a standard tool for analyzing the properties of hadronic systems at low energy where the perturbative expansion of Quantum Chromodynamics (QCD) in powers of the coupling constant cannot be applied, see [1,2]. It is based upon the approximate and spontaneously broken chiral symmetry of QCD. Starting from the most general effective Lagrangian for Gol...
متن کاملFew–Nucleon Systems with Two–Nucleon Forces from Chiral Effective Field Theory
Nucleon–nucleon (NN) forces from chiral perturbation theory at next–to–leading (NLO) and next– to–next–to–leading order (NNLO) are applied to systems with two, three and four nucleons. At NNLO, we consider two versions of the chiral potential which differ in the strength of the two– pion–exchange (TPE) but describe two nucleon observables equally well. The NNLO potential leads to unphysical dee...
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ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2006
ISSN: 1434-6001,1434-601X
DOI: 10.1140/epja/i2006-09-005-6