COMPARISON OF APPROXIMATE AND ACCURATE METHODS IN QUARK–PION MODELS-Reference-Cited by-同舟云学术

COMPARISON OF APPROXIMATE AND ACCURATE METHODS IN QUARK–PION MODELS

Published:1999-02-20 Issue:05 Volume:14 Page:731-759
ISSN:0217-751X
Container-title:International Journal of Modern Physics A
language:en
Short-container-title:Int. J. Mod. Phys. A

Author:

AMOREIRA L.¹,FIOLHAIS M.²,GOLLI B.³,ROSINA M.⁴

Affiliation:

1. Departamento de Física, Universidade da Beira Interior, P-6200 Covilhã, Portugal

2. Departamento de Física, Universidade de Coimbra, P-3000 Coimbra, Portugal

3. J. Stefan Institute and Faculty of Education, University of Ljubljana, 61111-Ljubljana, Slovenia

4. J. Stefan Institute and Faculty of Mathematics and Physics, University of Ljubljana, 61111-Ljubljana, Slovenia

Abstract

Accurate and approximate methods are compared in the framework of models of the nucleon with valence quarks interacting linearly with a pion cloud. In order to establish the comparison, nucleon properties are computed from model states resulting from diagonalization of the Hamiltonian, and from approximate solutions based on variational and perturbative methods.

Publisher

World Scientific Pub Co Pte Lt

Subject

Astronomy and Astrophysics,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217751X99000361

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1. Direct calculation of the K-matrix for pion electro-production in the delta channel;The European Physical Journal A;2005-10

2. Axial amplitudes for Δ excitation in chiral quark models;Physics Letters B;2003-01

3. Δ(1232)electroproduction amplitudes in chiral soliton models of the nucleon;Physical Review C;2000-09-05