Comparison of approximate and accurate methods in quark-pion models

被引：4

作者：

Amoreira, L ^{[1
]}

Fiolhais, M

Golli, B

Rosina, M

机构：

[1] Univ Beira Interior, Dept Fis, P-6200 Covilha, Portugal

[2] Univ Coimbra, Dept Fis, P-3000 Coimbra, Portugal

[3] Univ Ljubljana, Jozef Stefan Inst, Ljubljana 61111, Slovenia

[4] Univ Ljubljana, Fac Educ, Ljubljana 61111, Slovenia

[5] Univ Ljubljana, Fac Math & Phys, Ljubljana 61111, Slovenia

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 1999年 / 14卷 / 05期

关键词：

D O I：

10.1142/S0217751X99000361

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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.

引用

页码：731 / 759

页数：29

共 20 条

[1] Virial theorems for the pion cloud in one-radial-mode models [J].