Extended Brueckner-Hartree-Fock Theory with Pionic Correlation and Chiral Symmetry

Journal Article · Fri Oct 21 04:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3647446· OSTI ID:21611971

Ogawa, Yoko; Toki, Hiroshi ^[1]

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1. Research Center for Nuclear Physics, Osaka University, Osaka, 567-0047 (Japan)

We present a nuclear many-body theory with explicit treatment of strong tensor correlation induced by the pion-exchange interaction. For this purpose, the Hartree-Fock variational model space is extended to include 2-particle 2-hole (2p-2h) states, which are able to handle the tensor correlation with high momentum components originating from pseudo-scalar nature of the pion. We take a variational principle of the total energy, and obtain an extended Brueckner-Hartree-Fock equation with inclusion of the effect of the pion exchange and short-range repulsive interaction. This framework has a similar structure as the Brueckner theory and we call this framework extended Brueckner-Hartree-Fock theory.

• OSTI ID: 21611971
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1388; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
APPROXIMATIONS
BARYONS
BOSONS
CALCULATION METHODS
CHIRAL SYMMETRY
CORRELATIONS
ELEMENTARY PARTICLES
EXCHANGE INTERACTIONS
FERMIONS
HADRONS
HARTREE-FOCK METHOD
INTERACTIONS
MANY-BODY PROBLEM
MATHEMATICAL MODELS
MESONS
NUCLEAR MODELS
NUCLEONS
PARTICLE-HOLE MODEL
PIONS
PSEUDOSCALAR MESONS
SYMMETRY
TENSORS
VARIATIONAL METHODS