CALCULATION OF SOME FOURTH-ORDER DIAGRAMS IN NUCLEAR MATTER

Journal Article · Mon Mar 23 04:00:00 EST 1964 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.133.B1401· OSTI ID:4082278

Petschek, A G

It is well known that in the Goldstone theory of manyfermion systems certain higher-order diagrams are included in the third-order diagrams if the hole self-energy is evaluated on the energy shell. A similar generalization of fourth-order diagrams is carried out. With this generalization, the Hartree-Fock potential U, which cancels the third-order diagrams, no longer cancels the founthorder diagrams as well as before. The lack of cancellation is evaluated in two simple cases using the reference approximation, and found to be large in one case, small in the other. (auth)

• Research Organization: Los Alamos Scientific Lab., N. Mex.
• NSA Number: NSA-18-015252
• OSTI ID: 4082278
• Report Number(s): LADC-5987; 0031-899X
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 133; ISSN PHRVA
• Country of Publication: United States
• Language: English

Related Subjects

ATOMIC MODELS
DIAGRAMS
ENERGY LEVELS
FERMIONS
FIELD THEORY
GOLDSTONE DIAGRAMS
HARTREE-FOCK METHOD
MANY BODY PROBLEM
NUCLEAR MODELS
NUMERICALS
PERTURBATION THEORY
PHYSICS
SELF-CONSISTENT FIELD
SHELL MODELS