Published October 19, 1989
| Version v1
Journal article
Positive and convergent self-energy in a chiral potential model
Description
In the framework of a chiral potential model, relativistic many-body theory is used to study the effects of the pion cloud perturbatively. The second order quark self-energy is derived and studied numerically by inclusion of the full model space in the quark sector of the calculation. The self-energy shift of the three-quark ground state is found to be positive and convergent for a linearly confining potential in contrast to the negative and divergent result of the chiral bag. (orig.)
Additional details
Publishing Information
- Journal Title
- Physics Letters, (Section) B
- Journal Volume
- 229
- Journal Issue
- 4
- Series
- Phys. Lett., B.
- Journal Page Range
- 333-338
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 21009121
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BAG MODEL; BARYONS; BOUND STATE; CENTRAL POTENTIAL; CHIRAL SYMMETRY; CHIRALITY; EIGENSTATES; GROUND STATES; HAMILTONIANS; HILBERT SPACE; LAGRANGIAN FIELD THEORY; PCAC THEORY; PERTURBATION THEORY; PIONS; PROPAGATOR; QUARK MODEL; QUARK-HADRON INTERACTIONS; QUARK-QUARK INTERACTIONS; QUARKS; RELATIVISTIC RANGE; SCALAR FIELDS; SELF-ENERGY; SERIES EXPANSION; SPECTRAL SHIFT; SPINOR FIELDS; THREE-BODY PROBLEM
- Descriptors DEC
- BANACH SPACE; BOSONS; COMPOSITE MODELS; ELEMENTARY PARTICLES; ENERGY; ENERGY LEVELS; ENERGY RANGE; EXTENDED PARTICLE MODEL; FERMIONS; FIELD THEORIES; HADRONS; INTERACTIONS; MANY-BODY PROBLEM; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MATHEMATICAL SPACE; MESONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; POSTULATED PARTICLES; POTENTIALS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUANTUM OPERATORS; SPACE; SYMMETRY