Off-shell effects in nuclear matter from an EFT point of view.

B. V. Krippa; M. C. Birse; J. A. McGovern; Niels Walet

doi:10.1063/1.1570567

Off-shell effects in nuclear matter from an EFT point of view.

B. V. Krippa, M. C. Birse, J. A. McGovern, Niels Walet

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Effective field theory requires all observables to be independent of the representation used for the quantum field operators. Off-shell parts of the in-medium vertex functions depend on the particular representation so that off-shell properties of the interactions should not lead to any observable effects. We analyze this issue in the context of many-body approaches to nuclear matter, where it should be possible to shift into three-body force the contributions from purely off-shell two-body interactions. None of the commonly used truncations of the two-body scattering amplitude such as the ladder, Brueckner-Hartree-Fock or parquet approxns. respect this requirement. [on SciFinder (R)]

Original language	English
Title of host publication	AIP Conference Proceedings
Volume	660
DOIs	https://doi.org/10.1063/1.1570567
Publication status	Published - 2003

Keywords

Nuclear model (many-body; many-body approaches to nuclear matter); Field theory; Nuclear matter (off-shell effects in nuclear matter from effective field theory point of view)

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10.1063/1.1570567

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@inproceedings{3c46095e987f4b89a77fd5c09f5ed564,

title = "Off-shell effects in nuclear matter from an EFT point of view.",

abstract = "Effective field theory requires all observables to be independent of the representation used for the quantum field operators. Off-shell parts of the in-medium vertex functions depend on the particular representation so that off-shell properties of the interactions should not lead to any observable effects. We analyze this issue in the context of many-body approaches to nuclear matter, where it should be possible to shift into three-body force the contributions from purely off-shell two-body interactions. None of the commonly used truncations of the two-body scattering amplitude such as the ladder, Brueckner-Hartree-Fock or parquet approxns. respect this requirement. [on SciFinder (R)]",

keywords = "Nuclear model (many-body; many-body approaches to nuclear matter); Field theory; Nuclear matter (off-shell effects in nuclear matter from effective field theory point of view)",

author = "Krippa, {B. V.} and Birse, {M. C.} and McGovern, {J. A.} and Niels Walet",

year = "2003",

doi = "10.1063/1.1570567",

language = "English",

volume = "660",

booktitle = "AIP Conference Proceedings",

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TY - GEN

T1 - Off-shell effects in nuclear matter from an EFT point of view.

AU - Krippa, B. V.

AU - Birse, M. C.

AU - McGovern, J. A.

AU - Walet, Niels

PY - 2003

Y1 - 2003

N2 - Effective field theory requires all observables to be independent of the representation used for the quantum field operators. Off-shell parts of the in-medium vertex functions depend on the particular representation so that off-shell properties of the interactions should not lead to any observable effects. We analyze this issue in the context of many-body approaches to nuclear matter, where it should be possible to shift into three-body force the contributions from purely off-shell two-body interactions. None of the commonly used truncations of the two-body scattering amplitude such as the ladder, Brueckner-Hartree-Fock or parquet approxns. respect this requirement. [on SciFinder (R)]

AB - Effective field theory requires all observables to be independent of the representation used for the quantum field operators. Off-shell parts of the in-medium vertex functions depend on the particular representation so that off-shell properties of the interactions should not lead to any observable effects. We analyze this issue in the context of many-body approaches to nuclear matter, where it should be possible to shift into three-body force the contributions from purely off-shell two-body interactions. None of the commonly used truncations of the two-body scattering amplitude such as the ladder, Brueckner-Hartree-Fock or parquet approxns. respect this requirement. [on SciFinder (R)]

KW - Nuclear model (many-body; many-body approaches to nuclear matter); Field theory; Nuclear matter (off-shell effects in nuclear matter from effective field theory point of view)

U2 - 10.1063/1.1570567

DO - 10.1063/1.1570567

M3 - Conference contribution

VL - 660

BT - AIP Conference Proceedings

ER -

Off-shell effects in nuclear matter from an EFT point of view.

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Keywords

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