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

Journal Article · Fri Oct 21 00:00:00 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, Vol. 1388, Issue 1; Conference: BARYONS' 10: International conference on the structure of baryons, Osaka (Japan), 7-11 Dec 2010; Other Information: DOI: 10.1063/1.3647446; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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