Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Physics |
Creator |
DeTar, Carleton |
Title |
Quark-bag model with low-energy pion interactions. I. Theory |
Date |
1981-08 |
Description |
A standard method for restoring chiral symmetry in the bag model is to introduce an explicit external pion field. Questions of the consistency and compatibility of this method with the assumptions of the static-cavity approximation of the bag model are discussed. An approximate version of the model is justified. It is argued that consistency requires treating pion-induced quark-pair creation and annihilation at the bag surface as a zeroth-order process in pion-coupling perturbation theory. An approximation treating these pairs as an inward extension of the pion field is discussed. The resulting model gives an improved value of gA. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review D |
Volume |
24 |
Issue |
3 |
First Page |
752 |
Last Page |
761 |
DOI |
10.1103/PhysRevD.24.752 |
citatation_issn |
0556-2821 |
Subject |
Bag models; Quark bag; Chiral symmetry; Pion bag; Pion field |
Subject LCSH |
Quarks; Pions; Particles (Nuclear physics); Perturbation (Quantum dynamics); Particles (Nuclear physics) -- Chirality |
Language |
eng |
Bibliographic Citation |
DeTar, C. (1980). Quark-bag model with low-energy pion interactions. I. Theory. Physical Review D, 24(3), 752-61. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevD.24.752 |
Format Medium |
application/pdf |
Format Extent |
778,898 bytes |
Identifier |
ir-main,10446 |
ARK |
ark:/87278/s6183qzz |
Setname |
ir_uspace |
ID |
705069 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6183qzz |